Photovoltaic support foundation integrated calculation method for wind protection self-switching of optimal angle and wind sheltering angle

The invention discloses an integrated calculation method for a photovoltaic support foundation with an optimal angle, a wind shielding angle and a wind protection self-switching function. The integrated calculation method comprises the steps that 1, the optimal angle of an adjustable photovoltaic support is obtained based on a component inclination angle and array spacing cross feedback calculation method; step 2, fitting to obtain Weibull distribution of local annual wind speed probability density; 3, determining a protection wind speed initial value according to the step 2, and calculating according to the maximum wind pressure bearing in 50 years to obtain a corresponding wind shielding angle initial value; 4, establishing a unit electric energy cost reduction rate model taking the protection wind speed as a variable, and obtaining an optimal protection wind speed; and step 5, calculating the total amount of the support foundation of the assembly under the action of the optimal protection ...

FUEL CELL SYSTEM AND FUEL CELL SYSTEM PURGE CONTROL METHOD

The invention relates to the technical field of new energy, in particular to a fuel cell system and a fuel cell system purging control method, and discloses a fuel cell system and a fuel cell system purging control method, the fuel cell system comprises a cell stack and a cell purging module, the battery purging module comprises an air compressor and a shut-off valve, the air compressor is used for inputting air to the battery stack, and the shut-off valve is used for controlling the circulation state of an air loop; according to the fuel cell system, the oxygen input into the cell stack is consumed firstly, after the oxygen is consumed, the on-off state of the shut-off valve in the cell purging module is adjusted, and the air consuming the oxygen is input into the cell stack for purging, so that the moisture of the cell stack is reduced, the use efficiency of the fuel cell system is improved, and the energy consumption of the fuel cell system is reduced while the purging condition is met ...

Highway traffic flow stability analysis method in heterogeneous traffic environment

The invention discloses an expressway traffic flow stability analysis method in a heterogeneous traffic environment, and the method comprises the steps: building a basic traffic flow car-following model, and obtaining the related information of vehicles in a heterogeneous traffic flow; the basic traffic flow car-following model is improved according to the vehicle related information, and a heterogeneous traffic flow car-following model is established; introducing disturbance to obtain a heterogeneous traffic flow car-following model under the disturbance; and calculating a transfer function by using the heterogeneous traffic flow car-following model under disturbance, obtaining a neutral stability condition according to the transfer function, and judging the stability of the highway traffic flow in the current heterogeneous traffic environment by using the neutral stability condition. According to the method, a basic traffic flow car-following model is expanded, a corresponding traffic ...

智能门铃（O5）

智能摄像机（悬臂01）

智能门铃（CB01）

Aquaculture equipment

The invention relates to the field of aquaculture, in particular to aquaculture equipment which comprises an aquaculture box body, and a first drain outlet and a second drain outlet are formed in the aquaculture box body; the purification device comprises a first mounting frame, a first rotating shaft, a belt wheel, a transmission belt, a scraping blade and a first rotating driving assembly; the first mounting rack is fixedly mounted in the breeding box body; the first rotating shaft is rotatably mounted on the first mounting frame; the belt wheel is fixedly sleeved on the first rotating shaft; the belt wheel is sleeved with the transmission belt. The multiple scraping pieces are fixedly installed on the transmission belt at equal intervals. The first rotary driving assembly is fixedly mounted on the first mounting frame, and the driving end of the first rotary driving assembly is in transmission connection with one belt wheel. According to the device, the function of cleaning deposited ...

COMBINED MACHINE HEAD AND RAY IMAGING DEVICE

Disclosed in the present invention are a combined machine head and a ray imaging device. The combined machine head comprises: a housing, having an enclosed cavity; a ray bulb tube, provided in the enclosed cavity; a pump body and a pipe body, provided in the enclosed cavity; the pump body being provided on the side away from the positive electrode of the ray bulb tube, one end of the pipe body being connected to an outlet of the pump body, and the other end extending to be near the positive electrode of the ray bulb tube; or, the pump body being provided near the positive electrode of the ray bulb tube, one end of the pipe body being connected to an inlet of the pump body, the other end extending to the side away from the positive electrode of the ray bulb tube. In the present invention, when the pump body operates, the insulating medium at the positions away from of the positive electrode can be drawn to be near the positive electrode, and the insulating medium in the enclosed cavity is ...

智能摄像机（悬臂02）

Tooth mouth shakeout and sand cleaning machine after casting molding of specific large gear

The invention relates to the field of casting shakeout mechanical equipment, in particular to a gear mouth shakeout and sand cleaning machine after casting forming of a specific large gear, which comprises a supporting seat, and a bottom shakeout component for shakeout of the bottom of a gear mouth is arranged on the left side of the lower part of the supporting seat in a left-right sliding manner; an upper shakeout component for shakeout of the arc face position of the upper side of the tooth opening is arranged on the right side of the upper portion of the supporting base in the circumferential direction of the supporting base in a sliding mode, and a rotating component for rotating the alloy gear is arranged in the supporting base. Then, a bottom shakeout motor drives a shakeout sweeper to rotate through a rotating sleeve, so that molding sand accumulated and adhered to the bottom of the bevel gear is swept away, the shakeout sweeper is in a conical shape and can be more comprehensively ...

Bathroom valve structure and working method thereof

The invention discloses a bathroom valve structure and a working method thereof.The bathroom valve structure comprises a valve body, and an upper valve hole with an opening in the upper end, a lower valve hole with an opening in the lower end and a mounting hole used for communicating the upper valve hole with the lower valve hole are formed in the valve body; a water outlet pipe and a water inlet pipe are arranged on the outer side of the circumference of the valve body, and a filter plate extending into the mounting hole is fixedly arranged at the bottom of the upper valve hole; a valve element is rotationally connected into the lower valve hole. An upper end cover is fixedly arranged at the upper end of the upper valve hole, and a movable block is connected into the upper valve hole in a sliding mode. The center position of the filter plate is rotationally connected with a rotating block; the lower end of the rotating block downwards extends out of the filter plate and is provided with ...

Soft soil layer drilling efficiency control method, electronic equipment and computer storage medium

The invention relates to a soft soil layer drilling efficiency control method, electronic equipment and a computer storage medium, the soft soil layer drilling efficiency control method is applied to a rotary drilling rig, and comprises the following steps: establishing a soft soil layer virtual hole model; key influence factors of the rotary drilling rig during soft soil layer operation are determined through big data analysis based on the soft soil layer virtual hole model; and the drilling efficiency of the rotary drilling rig in soft soil layer operation is regulated and controlled according to the key influence factors. According to the method, the drilling efficiency of the rotary drilling rig in the soft soil layer is analyzed through virtual modeling, the test cost is saved, and the drilling efficiency of the rotary drilling rig in the soft soil layer operation is effectively improved.

Intelligent ditching planning method based on depth-adjustable ditching device

The invention discloses an intelligent ditching planning method based on a depth-adjustable ditching device. The ditching device comprises a supporting plate, a depth adjusting mechanism, an angle adjusting mechanism, a ditching forming mechanism and a control system. The method comprises the steps that a, field surface information is obtained through remote sensing, and the number and position information of water outlets and the mud surface height H0 are obtained; b, the number and the length L of drainage ditches are planned, and the minimum depth H1 and the drainage slope alpha of the drainage ditches are set; the real-time height H of the ditching device and the distance x from the ditching device to the water outlet are obtained through the GNSS; the rotation angle theta of the ditching forming mechanism is obtained through a tilt angle sensor; c, a ditching depth slope reference y is calculated and generated, and the expansion amount L'of an angle adjusting oil cylinder is calculated ...

CLOUD SERVER, TERMINAL, AND DATA BACKUP METHOD THEREOF

A cloud server data backup method, a cloud server, a terminal data backup method, and a terminal. The cloud server data backup method comprises: receiving data to be backed up and configuration information of the data sent by a first client; and storing the data according to the configuration information. By adopting the above solution, when a user uses a backup service, the user can, according to needs of the user, make a choice regarding whether to edit personal data of the user at a network side, and system parameters are configured according to choice of the user.

Autonomous positioning method for mobile robot in underground complex environment and robot

The invention discloses an autonomous positioning method for a mobile robot in an underground complex environment and the robot, the robot to be positioned is provided with a multi-sensor positioning system, and sensors in the multi-sensor positioning system comprise a speedometer, a laser radar, a UWB module and an IMU module; the method comprises the following steps: placing a robot in an underground environment without GPS signals, and controlling the robot to move to each position in the environment; an environment map is constructed based on data collected by the multi-sensor positioning system in the moving process of the robot; and obtaining the relative positions of the two moments provided by the UWB module, constructing a relative position constraint, adding the position constraint to the pose map optimization constraint, and constructing a non-offset global map to complete fusion positioning. By adopting the mobile robot autonomous positioning method provided by the invention ...

METHOD, TERMINAL AND CHINA MOBILE MULTIMEDIA BROADCASTING (CMMB) SERVER FOR PROCESSING CMMB SERVICE

A method, terminal and CMMB server for processing CMMB service are provided by the present invention, and the method comprises the following steps: the terminal sends a request message for obtaining channel information to the CMMB server when the terminal starts CMMB service, and the request message carries the mark information of the obtained channel information. According to the present invention, the starting speed of the CMMB service can be raised, thereby the efficiency can be improved effectively and user experience can be improved.

MEDIA FILE, AND GENERATION METHOD AND PLAYBACK METHOD THEREFOR

A media file, and a generation method and a playback method therefor. The media file comprises: at least one character file unit (11), the character file unit (11) comprising a character to interact with, and at least one action template of said character, the action template being used for configuring an action of said character; and at least one interaction file unit (12), the interaction file unit (12) comprising interaction prompt information, and the interaction prompt information being used for prompting a user to input an animation image material during the process that the media file is played, so that an animation image of said character indicated by the interaction prompt information is obtained and displayed according to the animation image material input by the user. The media file can improve the user's interaction with the story, game, etc. displayed in the animation.

Mould product matching degree detection system and method

The invention discloses a mold product adaptability detection system and method, and relates to the technical field of molds, the mold product adaptability detection system comprises a measuring unit for obtaining a measured value and a standard value of a mold specification, comparing the measured value with the standard value, judging whether deviation exists or not and correcting to obtain a corrected value; the modeling unit is used for forming a correction value based on the standard value and the measured value of the mold, respectively establishing three-dimensional models of the mold, and respectively marking an actual value and a replacement value; the judgment unit is used for imaging the movement process of the mold, constructing a movement model, carrying out simulation test on the movement state of the mold and determining the matching degree after the simulation test; and the correction unit is used for determining a correction sequence, correcting the mold parameters and ...

Device and method for extracting phosphorus from yellow phosphorus sludge

The invention discloses a phosphorus extraction device and method for yellow phosphorus sludge, and relates to the technical field of phosphorus separation and purification, the phosphorus extraction device comprises a phosphorus sludge heating system, the phosphorus sludge heating system comprises a phosphorus sludge pool, a phosphorus sludge conveying pipeline, a phosphorus sludge conveying pump and a phosphorus sludge heating rotary pan, one end of the phosphorus sludge conveying pipeline is connected with the phosphorus sludge pool, and the other end of the phosphorus sludge conveying pipeline is connected with the phosphorus sludge heating rotary pan; the other end of the phosphorus sludge conveying pipeline is connected with a heat exchange inner cavity of the phosphorus sludge heating rotary pan; a phosphorus sludge conveying pump is mounted on the phosphorus sludge conveying pipeline; a phosphorus vapor condensation system; the invention discloses a biological phosphorus extraction ...

Radian-adjustable ship outboard magnetic leaking stoppage plate

The invention discloses a ship outboard magnetic leaking stoppage plate with an adjustable radian, which is characterized in that a sequential pressure leaking stoppage method is adopted outside a ship, and a plurality of arranged magnets are adsorbed on the periphery of a damaged opening of a ship side plate, so that the magnetic leaking stoppage plate can quickly and firmly cover the damaged opening; quick leaking stoppage can be achieved regardless of the size of a leaking stoppage opening and the difference of the radian and the shape of the curved surface, and any radian of the curved surface of the outboard magnetic leaking stoppage plate can be adjusted by rotating the handle to enable the telescopic rod to stretch or retract within a certain range. The ship outboard leaking stoppage device has the advantages of being easy to operate, rapid in leaking stoppage, safe and reliable, ship outboard leaking stoppage can be completed through operation of only one person or two persons, ...

Orchard operation robot path planning method and system and electronic equipment

The invention discloses an orchard operation robot path planning method and system and electronic equipment, and relates to the technical field of path planning. The method comprises the steps of obtaining an orchard image; obtaining a region of interest in the orchard image, and performing three-dimensional image reconstruction on the region of interest to obtain an orchard map; cutting an orchard map, and inputting the cut orchard map into the semantic segmentation model to obtain a target object; an orchard classification map is generated based on target object splicing; based on the orchard classification map, performing fruit tree classification by adopting a threshold classification method to obtain single fruit trees and fruit tree rows; single fruit trees are converted into circles, fruit tree rows are converted into rectangles, and a fruit tree distribution diagram is obtained; and planning an operation path of the orchard operation robot based on the fruit tree distribution diagram ...

High-temperature alloy resistance tape drilling machine

The invention belongs to the technical field of resistance tape machining, and particularly relates to a high-temperature alloy resistance tape drilling machine which comprises a machine table. A portal frame is fixedly connected to the middle of the top face of the machine table. A moving structure is arranged at the bottom of the portal frame; an inverted L-shaped mounting frame is arranged at the bottom of the moving structure; a drill bit is rotationally mounted on one side of the bottom of the mounting frame; a power structure is arranged on the mounting frame and drives the drill bit to rotate; a resistance tape is placed on the top surface of the machine table; the moving structure pushes the mounting frame to descend, after the drill bit moves to the to-be-drilled position of the resistance tape, the power structure drives the drill bit to rotate, and at the moment, the moving structure drives the mounting frame to translate and drives the drill bit to drill the drilling position ...

Positioning method and device

The invention provides a positioning method and device, and is applied to the technical field of image recognition positioning, and the method comprises the steps: obtaining a first panorama in a target positioning region shot by a camera, and carrying out the image preprocessing operation of the first panorama, and obtaining a second panorama; performing multi-scale feature extraction on the second panorama to obtain a multi-scale feature map; carrying out feature map framing on the multi-scale feature map to obtain a framed feature map; performing non-maximum suppression on the framing feature map to obtain a target ship map; and when the target ship category in the target ship graph is a preset ship category, determining the position of the target ship. According to the method, multi-scale feature extraction is carried out on the second panorama of the target positioning area, the target ship image is finally obtained, the image precision of the target ship image is improved, and therefore ...

Triangular all-dimensional inclined strut V-shaped offshore wind power floating type supporting foundation

The invention discloses a triangular all-dimensional inclined strut V-shaped offshore wind power floating type supporting foundation. The floating type supporting foundation (2) comprises a middle vertical floating body (2.1), a starboard end vertical floating body (2.2), a larboard end vertical floating body (2.3), a fan bottom supporting plate (2.4), a starboard connecting floating body (2.5), a larboard connecting floating body (2.6), a bottom inclined strut floating body (2.7), a starboard inclined strut floating body (2.8) and a larboard inclined strut floating body (2.9). The end vertical floating bodies of the floating type supporting foundation are only connected with the middle vertical floating bodies to form a V-shaped structure, the design that a conventional deck and the vertical floating bodies are connected in pairs is omitted, the steel consumption is reduced, and construction is convenient. And a triangular inclined strut structure is additionally arranged at the weakest ...

Interaction method and device based on virtual image, electronic equipment and storage medium

One or more embodiments of the invention provide an interaction method and device based on a virtual image, electronic equipment and a storage medium. The method comprises the steps that a first client corresponding to a first user obtains a target group photo template selected by the first user and a first group photo position selected by the first user; in response to group photo operation initiated by the first user, the first client renders a virtual image of the first user to a first group photo position; in response to a sharing operation initiated by the first user, the first client shares the rendered target group photo template to a second client corresponding to a second user; the second client obtains a target group photo template shared by the first client; and in response to a group photo confirmation operation initiated by the second user, the second client renders the virtual image of the second user to a second group photo position reserved for the second user so as to generate ...

Seedling putting device for aquaculture

The invention relates to the technical field of aquaculture, in particular to a seedling putting device for aquaculture, which comprises a water tank, a putting box and a seedling conveying pipeline, the water tank is further provided with a seedling discharging assembly, and the seedling discharging assembly comprises an opening, a first threaded rod, a first transmission block, a second transmission block, a pushing sleeve plate and a driving mechanism. A first threaded rod is driven by a driving mechanism to rotate, a second transmission block is tightly attached to the interior of a water tank to move upwards, meanwhile, the first threaded rod can enable the first transmission block to move upwards on the first threaded rod through a first threaded hole, and the process is divided into two parts that when the second transmission block moves to the bottom end of an opening, the second transmission block stops moving upwards; the first transmission block continues to move upwards, all ...

Olivine-type lithium manganese iron phosphate as well as preparation method and application thereof

The invention discloses olivine-type lithium manganese iron phosphate and a preparation method and application thereof, the preparation method comprises the following steps: S1, dissolving lithium nitrate, ferric nitrate, manganese nitrate, ammonium dihydrogen phosphate and an organic matter in deionized water to obtain a mixed solution A; s2, stirring the mixed solution A for T1 time under a constant temperature condition to obtain a mixed solution B; s3, heating and evaporating the mixed solution B, and carrying out combustion reaction on jelly after evaporation to obtain a brownish black fluffy precursor; and S4, grinding the precursor, annealing in a protective gas atmosphere, and cooling to obtain the olivine-type lithium iron manganese phosphate. The olivine type lithium iron manganese phosphate can be prepared, the preparation method is simple in operation, low in temperature and simple in material use, the whole preparation process of the material is short in time consumption, high ...

Method for identifying ultraviolet radiation aging resistance degree of coating on insulator

The invention discloses a method for identifying the ultraviolet radiation aging resistance of a coating on an insulator, which is characterized by comprising the following steps of: mainly sampling from the surface of the coating on the insulator to be identified to obtain a sample wafer; carrying out hydrophobicity test on the sample sheet, and determining a static contact angle of the sample sheet; determining a hydrophobicity score according to the static contact angle of the sample; carrying out Fourier infrared spectrum testing on the sample wafer, and determining the heights of four absorption peaks, namely Si-O-Si, Si (CH3) 2, Si-CH3 and CH3 (C-H), of infrared spectrums; chemical bond scores are determined; and according to the hydrophobicity score and the chemical bond score, jointly determining the total ultraviolet radiation resistance score of the sample sheet so as to determine the aging degree of the sample sheet. According to the method, microcosmic and macroscopic multi-level ...

Mobile phone display screen touch screen intelligent verification device

A mobile phone display screen touch screen intelligent verification device disclosed by the present invention comprises a bearing plate and a screen detector, the screen detector is fixedly connected to the bearing plate, the bearing plate is fixedly connected with a supporting plate used for placing a mobile phone display screen, the bearing plate is fixedly connected with a supporting frame, the supporting frame is fixedly connected with a limiting plate, and the limiting plate is fixedly connected with the screen detector. A spiral groove is formed in the limiting plate, a piston rod is slidably connected to the spiral groove, a control block used for conducting touch control on a mobile phone display screen is fixedly connected to the piston rod, and an auxiliary mechanism used for assisting the piston rod in sliding along the spiral groove is arranged on the supporting frame. Through cooperation of the whole structure, when the piston rod slides along the spiral groove, the control ...

METHOD, SERVER, CLIENT AND SYSTEM FOR IMPLEMENTING DATA SYNCHRONIZATION

A method, server, client and system for implementing data synchronization include that: the server obtains synchronization abstract information for summarizing synchronization content, and sends the synchronization abstract information to the client that is to be synchronized; the client determines whether the synchronization is permitted according to the received synchronization abstract information; and if the determining result is permission, the synchronization is initiated. The above technical solution enables the client to control whether to respond the synchronization initiated by the server, thus improving the client controllability and the user experience.

DATA BACKUP AND RECOVERY METHOD AND SYSTEM FOR MOBILE TERMINAL

Disclosed is a data backup and recovery method for a mobile terminal. The method comprises: a mobile terminal sending a digital certificate application request to an authentication server, and receiving and storing a digital certificate issued by the authentication server; the mobile terminal initiating a data backup/recovery operation request, and sending an identity authentication request to the authentication server according to the stored digital certificate; and the mobile terminal judging whether to execute the data backup/recovery operation according to an identity authentication result returned by the authentication server.Also disclosed at the same time is a data backup and recovery system for a mobile terminal.The method and system of the present invention can be applied to enable digital authentication technology to be combined with the data backup and recovery of a mobile terminal, thereby improving the data backup and recovery security of the mobile terminal.

Optimization method, system and device for cold-state and warm-state starting of unit

The invention discloses an optimization method, system and device for cold-state and warm-state starting of a unit, belongs to the technical field of generator sets, and aims to solve the technical problems of long time consumption and water consumption of cold-state and warm-state starting and large temperature difference between the upper wall and the lower wall of a steam pocket in the heating and boosting process of a boiler in the prior art. The cold-state and warm-state starting process of the unit is researched, the cold-state and warm-state starting process is optimized, unit starting time consumption is shortened, boiler washing water consumption is reduced, and the temperature difference of a steam pocket wall is controlled, so that unnecessary energy consumption is reduced. A scheme for optimizing waste heat boiler cold-state washing, optimizing steam turbine cold-state starting and optimizing waste heat boiler drum wall temperature difference control is formulated, in the preparation ...

Fast video portrait segmentation method and device based on FastPortrait model and medium

The invention discloses a fast video portrait segmentation method and device based on a FastPortrait model and a medium, and the method comprises the steps: decomposing a video to be subjected to image segmentation into a plurality of continuous frames of images, and carrying out the portrait segmentation through a portrait segmentation model trained in advance; the portrait segmentation model adopts a FastPortrait model of an encoder-decoder structure, and a memory matching module is arranged between the lowest layers of an encoder and a decoder; and the memory matching module is used for extracting and enhancing portrait features in the feature image output by the encoder according to the historical image feature memory bank. According to the method, the portrait in the video can be quickly and accurately predicted and segmented.

Tower type photo-thermal power station mirror field lightning protection system

The invention discloses a tower type photo-thermal power station mirror field lightning protection system. The tower type photo-thermal power station mirror field lightning protection system comprises a main grounding grid and a plurality of surge protectors, wherein the main grounding grid is a horizontal grounding grid which is laid by taking the tower type heat absorption assembly as a circle center and each mirror field power distribution box as a node and is radially divergent and annularly closed in the circumferential direction; each mirror field transformer station is provided with a lightning arrester, a concentrated grounding grid is arranged underground the mirror field transformer stations, each mirror field transformer station is communicated with the main grounding grid, and lightning current is dissipated to the ground through a conductor in the concentrated grounding grid; and the surge protectors are respectively arranged in the mirror field transformer stations, the mirror ...

Internet of Things equipment upgrading method and device

The invention relates to an Internet of Things equipment upgrading method and device, and relates to the technical field of Internet of Things equipment, and the method comprises the steps: downloading an update file, discarding a boot loading area in the update file, storing an APP code in the update file to a preset upgrade code area, and carrying out the integrity verification; and after the verification is qualified, restarting the application program, and upgrading the application program through a Boot Load bootstrap program based on the APP code in the update file. On the premise that normal operation is not affected, code verification and application program updating are carried out based on the upgrading codes stored in the corresponding partitions, and convenience is provided for daily work.

Deep-sea anti-storm aquaculture net cage

The invention relates to the technical field of aquaculture net cages, in particular to a deep sea anti-storm aquaculture net cage which comprises a net cage frame, a circulating detection device and a netting. The plurality of circulating detection devices are uniformly distributed on the side part of the net cage frame and are fixedly connected with the net cage frame; a plurality of nettings are uniformly distributed on the circulating detection device; the circulating detection device further comprises an installation support, a circulating switching device, an expansion locking mechanism and a cleaning mechanism. The mounting bracket is fixedly mounted on the side wall of the net cage frame; the circulating switching device is mounted in the mounting bracket; the expansion locking mechanism is installed in the installation support and abuts against the netting circulation switching device. And the cleaning mechanism is fixedly mounted on the mounting bracket. The convenience of checking ...

Cyclomimetic isoligand iridium complex as well as preparation method and application of cyclomimetic isoligand iridium complex

The invention relates to a novel ternary homoligand iridium complex containing a cyclosimulation structure. A ligand in a series of iridium complex molecules is a cyclosimulation azine heterocyclic ring unit. Compared with an iridium complex which is widely researched and reported, the novel iridium complex provided by the invention not only has the advantages of high luminous efficiency, stable chemical property, easiness in sublimation and purification and the like, but also has relatively large steric hindrance on the periphery of the complex due to the introduction of a cyclic simulation structure, so that molecular accumulation is effectively inhibited, and the luminous efficiency is improved; on the other hand, due to the planar chiral characteristic brought by cyclosimulation, the complex has circularly polarized luminescence performance. In addition, by modifying the nitrogen heterocyclic ring structure, the light-emitting position of the complex can be adjusted within the visible ...

Limiting mechanism of electric hoist

The invention relates to the technical field of electric hoists, in particular to an electric hoist limiting mechanism. The steel wire rope is wound on the roller; the lifting hook is connected with the steel wire rope; the proximity switch is arranged on the roller and used for preventing the steel wire rope from rising; the proximity switch collision iron is arranged at the end, close to the roller, of the lifting hook, and the end, close to the roller, of the proximity switch collision iron is matched with the proximity switch; and when the lifting hook ascends to the proximity switch collision iron along with the steel wire rope to trigger the proximity switch, the proximity switch prevents the steel wire rope from continuing to ascend so as to limit the lifting hook. According to the scheme, the proximity switch is large in sensing area, long in sensing distance, sensitive in sensing, low in failure rate, not prone to limiting failure and high in safety and reliability.

Camera calibration method and device

The invention provides a camera calibration method and device, and is applied to the technical field of computer vision, and the method comprises the steps: obtaining a target parameter of a camera and a first panoramic image of a camera installation position shot by the camera; obtaining target environment data, and constructing a second panoramic image of the installation position of the camera according to the target environment data; calculating a position deviation coefficient of the camera according to the first panoramic image and the second panoramic image; calculating the overlap ratio of the first panoramic image and the second panoramic image; calculating an angle deviation coefficient of the camera according to the overlap ratio of the first panoramic image and the second panoramic image and a target parameter of the camera; and calibrating the camera according to the position deviation coefficient and the angle deviation coefficient. According to the method, the actual installation ...

DATA SYNCHRONIZATION METHOD AND DEVICE

The present invention provides a data synchronization method and device. The method comprises: generating a current data linked list containing a local unique identifier (LUID) of all data in a current mobile terminal; comparing the current data linked list with a synchronized data linked list recording data that is already synchronized with a server; and performing data synchronization according to a comparison result. In the present invention, the current data linked list is compared with the synchronized data linked list to implement data synchronization without relying on a changelog file, which improves the performance of data synchronization and does not need to invoke a changelog interface when data is modified, so that high portability is achieved.

Construction platform for house building engineering

The invention belongs to the technical field of building construction platforms, and relates to a construction platform for house building engineering. The construction platform comprises a base, a mounting rod and a storage plate. The mounting rod is in limited sliding connection with a first handrail and a second handrail. When the object placing plate drives materials to ascend, the object placing plate enables the first handrail in the storage groove to move outwards through the first transmission assembly, enter the through groove and be located below the materials, when the object placing plate descends, the object placing plate drives the mounting rod to rotate through the second transmission assembly, and the second handrail rotates by 90 degrees to be located in the storage groove. The first handrail drives the materials to rotate by 90 degrees to turn over the materials to the platform plate, and at the moment, the first handrail vertically and upwards blocks the notch of the ...

Distributed combined cycle power generation energy-saving control system and method

The invention relates to the technical field of distributed combined cycle power generation, in particular to a distributed combined cycle power generation energy-saving control system and method. Comprising the steps of obtaining a load change instruction, generating a load change quantity according to the load change instruction, and setting working parameters of the gas unit according to the load change quantity; a smoke temperature difference value in the waste heat boiler is obtained, and waste heat boiler working parameters and steam unit working parameters are set according to the smoke temperature difference value; and obtaining the working power of the steam unit, and judging whether the working parameters of the gas unit are corrected or not according to the working power of the steam unit. The opening degree of the smoke adjusting baffle is dynamically adjusted by collecting the smoke temperature difference value of the front side and the rear side of the waste heat boiler, so ...

Intelligent emergency communication method and system

The invention relates to the field of communication, in particular to an intelligent emergency communication control method and system, and the method comprises the following steps: determining a disaster area; external communication equipment is controlled to output special signals based on communication terminals preset in the affected area, a large number of communication terminals in the affected area are in a standby state, and the communication terminals in the standby state can only receive the signals; when the communication terminal detects a special signal, the communication terminal detecting the special signal is determined to be a wake-up communication terminal, the communication terminal is switched from a standby state to a working state, and the communication terminal in the working state can receive and transmit a signal; controlling communication terminals around the wake-up communication terminal based on an operation of outputting a wake-up signal to the peripheral side ...

Long-chain star-shaped hyperbranched terpolymer, thermally-induced reversible dynamic crosslinking thermoplastic elastomer and preparation of long-chain star-shaped hyperbranched terpolymer and thermally-induced reversible dynamic crosslinking thermoplastic elastomer

The invention discloses a long-chain star-shaped hyperbranched terpolymer, a thermotropic reversible dynamic crosslinking thermoplastic elastomer and preparation of the long-chain star-shaped hyperbranched terpolymer and the thermotropic reversible dynamic crosslinking thermoplastic elastomer. The long-chain star-shaped hyperbranched terpolymer is prepared by the following method: catalyzing ethylene and a BIEA monomer to be copolymerized by utilizing a Pd-diimine catalyst through a chain walking mechanism, so as to obtain a macromolecular initiator containing terminal bromine; and synthesizing the long-chain star hyperbranched terpolymer by atom transfer radical polymerization by taking the macromolecular initiator as an initiator, taking furfuryl methacrylate and styrene as comonomers, taking PMDETA as a ligand and taking CuBr as a catalyst. The invention provides a thermoplastic elastomer which is obtained by cross-linking and curing the long-chain star hyperbranched terpolymer and a ...

Polishing machining device for drainage floor drain production

The invention discloses a polishing processing device for drainage floor drain production, which comprises a base and a polishing mechanism, the top of the base is fixedly provided with a first pushing mechanism arranged in the X-axis direction through a conveying mechanism, and the top of the first pushing mechanism is fixedly provided with a second pushing mechanism arranged in the Y-axis direction. By arranging the first pushing mechanism and the second pushing mechanism which can move in the X-axis direction and the Y-axis direction, the floor drains installed at the top of the positioning disc can be ground and polished in all directions through the conveying mechanism, the grinding efficiency is improved to a certain degree, multiple sets of floor drains can be clamped and positioned at the same time through the arranged clamping blocks, and the practicability is high. And when the conveying mechanism is used for conveying, the guide mechanism can make contact with the two sets of ...

X-ray source heat dissipation structure and method

The invention relates to the technical field of X-ray heat dissipation, in particular to an X-ray source heat dissipation structure and method.The X-ray source heat dissipation structure comprises a braid layer, a liquid conveying assembly, a detection assembly and a controller, the braid layer wraps the surface of a high-pressure oil tank containing an X-ray source, the liquid conveying assembly is suitable for conveying volatile liquid to the braid layer, and the volatile liquid is evenly diffused into the braid layer through a diffusion assembly; the volatile liquid absorbs heat in the high-pressure oil tank and evaporates to take away the heat, the detection assembly detects the moisture content and temperature of the woven layer, and the liquid conveying amount of the liquid conveying assembly is adjusted. According to the high-pressure oil tank, the volatile liquid is evenly diffused to the woven layer through the capillary action, heat is absorbed through evaporation of the volatile ...

Composite reverse osmosis membrane and preparation method thereof

The invention relates to the technical field of membrane separation, in particular to a composite reverse osmosis membrane and a preparation method thereof. The preparation method comprises the following steps: A) soaking a porous support membrane in a water phase solution, then soaking the porous support membrane in an oil phase solution, taking out the porous support membrane, and carrying out heat treatment; and B) soaking the porous support membrane obtained in the step A) in an aqueous solution containing specific amino-functionalized cyclodextrin, taking out, and drying to obtain the composite reverse osmosis membrane. The amino-functionalized cyclodextrin is introduced into the surface of the membrane through grafting, the water flux and anti-pollution performance of the membrane are improved, and the prepared amino-functionalized cyclodextrin modified reverse osmosis membrane has high permeability and pollution resistance and meanwhile has the excellent salt removal rate and water ...

Lead removing device for faucet machining

The lead removing device comprises a stand column, a hydraulic cylinder is fixedly installed on the inner surface wall of the top of the stand column, and a top bin is fixedly installed at the output end of the hydraulic cylinder. According to the lead removal device, the containing fence is separated from the liquid storage bin, then the second driving part continues to drive the containing fence to rotate by a specified angle through cooperation of the rotating frame and the transverse rod, at the moment, the containing fence is arranged above the drying station, and at the moment, a lead removal agent adsorbed to the faucet and the outer surface wall of the containing fence begins to be separated under the action of the gravity of the lead removal agent and the drying assembly; and after a certain period of time is continued, the dried placing fence can be transferred to the position above the placing station, the taps subjected to lead removal are manually taken out, a new batch of ...

X-ray exposure time correction method and high voltage generator

The invention provides an X-ray exposure time correction method and a high voltage generator. The method comprises the following steps: acquiring set exposure parameters of X-rays and executing initial exposure work; when the actual exposure tube voltage rises and drops, according to the comparison result between the ratio of the actual exposure tube voltage to the set exposure tube voltage and the first target threshold value and the comparison result between the actual exposure tube voltage and the set exposure tube voltage and the second target threshold value, the invalid radiation time is obtained, and after the driving pulse corresponding to the initial exposure work is finished, the invalid radiation time is obtained. According to the generated residual effective radiation time, target compensation time is obtained; and according to the target compensation time and the total driving time of the driving pulse corresponding to the initial exposure work, obtaining the actual effective ...

Organic solid waste coupling compressed air energy storage system and method

The invention relates to the technical field of air energy storage, in particular to an organic solid waste coupling compressed air energy storage system and method. Comprising an organic solid waste gasification subsystem which comprises a gasification furnace, a purification dust remover and a fan which are sequentially connected in series; the power generation subsystem comprises a combustor, a gas turbine and a power generator which are sequentially connected in series; the heat exchange subsystem comprises a heat storage heat exchanger device, a low-temperature side runner of a heat storage heat exchanger and a high-temperature side runner of the heat storage heat exchanger which are arranged in parallel; the air compression and storage subsystem comprises a motor, a compressor and an air storage which are sequentially connected in series; and the tail gas treatment subsystem comprises a fan and a flue gas purification device which are sequentially connected in series. Organic solid ...

RADIOACTIVE WASTE WATER UNDERGROUND MIGRATION PROTECTION SYSTEM OF UNDERGROUND NUCLEAR POWER PLANT

A radioactive waste water underground migration protection system of an underground nuclear power plant, comprising reactor cavern protection layers (S) and a nuclear island peripheral overall protective water impermeable layer (Z) capable of blocking the underground water of a natural rock mass; the reactor cavern protection layers (S) comprise a liner layer (S1) surrounding a reactor cavern and preventing water leakage, a seepage water concentration and drainage layer (S3) having water concentration and repelling function, and a rock mass fissure filling layer (S2); the peripheral overall protective water impermeable layer (Z) is provided on the periphery of an underground cavern group jointly consisting of the reactor cavern and an auxiliary cavern.

Fabricated beam and slab connecting structure, construction equipment and construction method

The invention relates to the technical field of beam-slab connection, in particular to a fabricated beam-slab connection structure and a construction method thereof.According to the technical scheme, the fabricated beam-slab connection structure comprises a precast beam, and lap joint grooves are formed in the two sides of the upper end in the width direction; the precast slabs are arranged on the two sides of the precast beam in the width direction, and the ends of the precast slabs are in lap joint in the lap joint grooves; and the multiple tie pieces are distributed in the length direction of the precast beam and used for connecting the precast slabs on the two sides of the precast beam. Compared with a laminated beam and laminated slab connecting scheme in the background technology, the dry-type connection is adopted, and the concrete does not need to be solidified, so that the effects of saving the construction time and accelerating the construction efficiency are achieved.

Welding platform of fireproof door

The invention relates to the technical field of welding tools, in particular to a fireproof door welding platform which comprises a workbench, four reference backup plates used for positioning four straight corners in a fireproof door frame in a one-to-one correspondence mode are fixed to the workbench, and each reference backup plate is of a vertically-arranged right-angle plate structure; four splicing guide mechanisms which are arranged in one-to-one correspondence with the four reference backup plates and are used for guiding and splicing the end parts of the two frame beams are assembled on the workbench; a pushing and splicing mechanism for pushing four frame beams to be spliced into a rectangular door frame is further assembled on the workbench; according to the welding platform, the problem of door frame welding dislocation can be avoided, the influence of welding deformation on welding size precision can be greatly reduced, the welding strength of welding seams in the door frame ...

Compressed air energy storage system connected in parallel with expansion power generation system

The invention relates to the technical field of electric energy storage, in particular to a compressed air energy storage system connected in parallel with an expansion power generation system. Comprising a compression system, a compressed air storage unit, an expansion power generation unit and a cold and heat storage unit. The compressed air storage unit comprises a plurality of air storage devices connected in parallel. The expansion power generation unit comprises a plurality of expansion power generation systems which are connected in parallel and have different rated power generation powers. And a plurality of different expansion power generation systems are connected with each parallel high-pressure gas storage device. The cold and heat storage unit comprises a heat storage device and a cold storage device, the input end of the compression system is connected with surplus electric energy, and high-pressure gas output by the compression system is cooled through a heat exchange medium ...

Multi-intelligent agricultural machinery and supply transportation agricultural machinery collaborative operation method and system

The invention discloses a multi-intelligent agricultural machinery and supply transportation agricultural machinery collaborative operation method and system, and relates to the technical field of intelligent agricultural machinery collaboration.The method comprises the steps that data information at the current moment is acquired; according to the data information, determining the total time of each intelligent agricultural machine needing to be unloaded and supplemented at the current moment, and determining the intelligent agricultural machine with the shortest total time needing to be unloaded and supplemented as a target intelligent agricultural machine; determining a to-be-selected supply transportation agricultural machinery set at the current moment; determining a replenishment transportation farm machine closest to the target intelligent farm machine in the to-be-selected replenishment transportation farm machine set as a target replenishment transportation farm machine; and controlling ...

Miniature pumped storage power station based on high-rise building group and use method thereof

The invention discloses a miniature pumped storage power station based on a high-rise building group. The system comprises a micro pumped storage power station and a photovoltaic power station. The micro pumped storage power station and the photovoltaic power station operate jointly; the photovoltaic power station is of a distributed structure and is arranged on the roof or the wall face of the building group. The micro-pumped storage power station comprises a reservoir and a micro-pumped storage unit; the micro pumped storage unit is respectively connected with the reservoir and the photovoltaic power station; the reservoir comprises an upper reservoir and a lower reservoir; the upper reservoir comprises a living water tank of a building water lifting system and a rainwater collecting system; the lower reservoir comprises a flat urban water supply reservoir or a water plant; the living water tank and the rainwater collecting system are arranged on a building roof; one end of the living ...

Method for selecting strain of omnivorous largemouth bass

The invention discloses a strain selection method for omnivorous micropterus salmoides, and relates to an aquatic product variety improvement technology. Putting the newly hatched largemouth black perch fry into the fry culture pond for culture; during screening, semi-starvation feeding is conducted on the to-be-selected individuals, so that the to-be-selected individuals with stubborn carnivorous properties can eat other to-be-selected individuals; to-be-selected individuals with stubborn carnivorous properties are screened out; feeding the to-be-selected individuals which are not screened out with synthetic feed until all the to-be-selected individuals grow into adult fishes; the adult fish is used as a parent for cultivation and breeding, so that a new generation of largemouth black perch fry is obtained; taking the obtained largemouth black perch fries as new fries, and repeating the breeding and screening mode for at least two times; and taking the largemouth bass fry obtained at the ...

Ship monitoring method and device

The invention provides a ship monitoring method and device, and is applied to the technical field of marine fishery, and the method comprises the steps: obtaining a ship image in a monitoring region; extracting motion features of a ship in the ship image and appearance features of the ship; identifying the type of the ship according to the motion characteristics of the ship in the ship image and the appearance characteristics of the ship; under the condition that the type of the ship is a preset ship type, acquiring a navigation track of the ship; and according to the navigation trajectory of the ship, predicting whether the ship will enter a target area in the monitoring area. According to the method, the ship type is quickly determined by performing feature extraction on the ship image, and if the ship type is the preset ship type, whether the ship is about to enter the target area is predicted in a targeted manner, so that the efficiency of the ship monitoring method is improved.

RSSI POSITIONING METHOD BASED ON FREQUENCY-HOPPING SPREAD SPECTRUM TECHNOLOGY

An RSSI positioning method based on frequency-hopping spread spectrum technology, comprising: calibration stage: measuring the RSSI values of a plurality of channels at fixed points, and recording and calculating a distance measurement parameter in an RSSI distance measurement model; system preparation: deploying a positioning anchor node, and realizing synchronization between a target node and the anchor node; conducting communication on the target node by respectively utilizing the plurality of channels to obtain the RSSI values; signal processing stage: processing the RSSI into signal intensity amplitude optimization; and positioning stage: calculating the distance and target node position on a positioning server according to the calculation of each signal intensity. The present invention solves the problem that low RSSI positioning precision cannot satisfy the actual requirements because a traditional RSSI positioning method is limited to factors such as multi-path signal transmission ...

Novel preparation method of L-carnitine

The invention provides a novel preparation method of L-carnitine, which comprises the following steps: dissolving R-(-) 3-cyano-2-hydroxy propyl trimethylamine chloride serving as a raw material in absolute methanol, introducing a proper amount of hydrogen chloride gas at low temperature, and carrying out heat preservation reaction to generate imino ester hydrochloride; the method comprises the following steps: carrying out hydrolysis reaction on L-carnitine, neutralizing with a sodium hydroxide solution until the pH value is 6-7, filtering out generated sodium chloride impurities, concentrating mother liquor to obtain a crude product of L-carnitine, and refining with a known electrodialysis desalting method to obtain a qualified finished product of L-carnitine. The method for preparing L-carnitine has the advantages of mild reaction conditions, high yield and few impurities, and is especially suitable for large-scale industrial application.

METHOD AND DEVICE FOR SECURE VIEWING OF SHARED FILE

The present invention relates to the field of communications. Disclosed are a method and device for secure viewing of a shared file, comprising: setting up the users jointly owning a to-be-viewed shared file; acquiring and storing the private passwords respectively set by the users jointly owning the to-be-viewed shared file; authenticating the users by using the private passwords; and if all the users jointly owning the to-be-viewed shared file are successfully authenticated, then issuing the shared file to all the users. The present invention ensures mutual restriction among users when multiple users jointly own a to-be-viewed file, and a user can view the file only after all users pass the real-time authentication, thus greatly improving the timeliness, security and integrity of the file.

Sludge dewatering machine convenient for later collection

The sludge dewatering machine comprises a conveying pipe, a concentration pipe and a limiting plate, a sludge inlet is formed in the left side of the conveying pipe, the concentration pipe and the dewatering pipe are both arranged on the outer side of the conveying pipe, a waste water recycling box is fixedly installed on the lower surface of the conveying pipe, and a sludge outlet is formed in the side face of a support. A support is arranged on the base, a movable box is movably arranged in the support, a limiting plate is movably connected to the outer side of the support, an electric telescopic rod is fixedly installed in the lower end of a push block, an adjusting rod is welded to the upper surface of the push block, a through groove is formed in the upper surface of the movable box, and a tooth block is fixedly installed on the upper surface of the limiting plate. According to the sludge dewatering machine convenient for later collection, a novel structural design is adopted, so that ...

Method, device and equipment for generating monitoring information of dam body and readable storage medium

The invention provides a dam body monitoring information generation method and device, equipment and a readable storage medium, relates to the technical field of dam body monitoring, and aims to solve the problem of low reliability of monitoring results in the prior art of dam body deformation monitoring. The method comprises the following steps: acquiring distance information, wherein the distance information comprises distances between at least three satellites and each monitoring station on the surface of a target dam body at a target time point; based on the three-dimensional space coordinates of the at least three satellites and the distance information, respectively determining target three-dimensional space coordinates of each monitoring station at the target time point; based on the target three-dimensional space coordinates, determining a first displacement vector diagram and a second displacement vector diagram of the target dam body at the target time point; and generating deformation ...

METHOD FOR PUSHING YELLOW PAGE INFORMATION, YELLOW PAGE SERVER AND COMPUTER-READABLE STORAGE MEDIUM

Disclosed is a method for pushing yellow page information. The method comprises: receiving, by a yellow page server, a merchant query request of a first user, and obtaining at least one piece of corresponding merchant information according to the merchant query request; determining, by the yellow page server, a user information set related to each piece of the merchant information; obtaining, by the yellow page server, user information about a second user in the user information set, the relevance of the second user and the first user satisfying a pre-set condition; and pushing, by the yellow page server, the at least one piece of merchant information and the user information about the second user to a yellow page client of the first user. Also provided is a yellow page server and a computer-readable storage medium.

DATA BACKUP AND RECOVERY METHOD AND SYSTEM FOR MOBILE TERMINAL

Disclosed is a data backup and recovery method for a mobile terminal. The method comprises: a mobile terminal sending a digital certificate application request to an authentication server, and receiving and storing a digital certificate issued by the authentication server; the mobile terminal initiating a data backup/recovery operation request, and sending an identity authentication request to the authentication server according to the stored digital certificate; and the mobile terminal judging whether to execute the data backup/recovery operation according to an identity authentication result returned by the authentication server.Also disclosed at the same time is a data backup and recovery system for a mobile terminal.The method and system of the present invention can be applied to enable digital authentication technology to be combined with the data backup and recovery of a mobile terminal, thereby improving the data backup and recovery security of the mobile terminal.

System and method for co-producing gas and electricity by coupling compressed air energy storage with organic solid waste

The invention relates to the technical field of thermochemical utilization of organic solid wastes, in particular to a system and a method for co-producing gas and electricity by coupling compressed air energy storage and organic solid wastes. Comprising an air compression subsystem, a compression heat subsystem, an air expansion subsystem, an organic solid waste gasification subsystem and a regenerative heat utilization subsystem. The compression heat subsystem recycles compression heat of compressed air generated by the compressed air subsystem, and the grade and the yield of combustible gas produced by the whole system are improved. And the regenerative heat utilization subsystem is used for recycling high-temperature heat of combustible gas generated by the organic solid waste gasification subsystem, so that the working and power generation capability of the air expansion subsystem is improved, and gas and power cogeneration is realized while the overall loss is reduced. Organic solid ...

Disposable endoscope supporting strap structure

The disposable endoscope supporting strap structure is composed of a strap part and an endoscope supporting part, the strap part comprises a strap assembly and a waistband, the strap assembly is connected to the waistband, and holes are formed in the two sides of the strap assembly; the endoscope supporting part is divided into a supporting platform and an operation part support, the supporting platform is fixed on the strap assembly, the supporting platform comprises a ball head groove, the operation part support comprises a supporting plate, a fastener is arranged on the supporting plate, a ball head is fixed at the bottom of the supporting plate, and the ball head is rotatably embedded in the ball head groove. The supporting strap is a disposable product and can be directly discarded after being used, so that the risk of cross infection is avoided; the straps are fixed on the body of an operator and can move along with the movement of the operator, and the mobility and the operation ...

Municipal road height limiting rod capable of rapidly adjusting height

The utility model provides a municipal road height-limiting rod capable of quickly adjusting height, which comprises a device body, the left and right sides of the bottom of the device body are provided with pre-embedded cement piles in the vertical direction, and the center of the top end face of each pre-embedded cement pile is fixedly provided with a lifting motor in the vertical direction through a bolt; the tops of the embedded cement piles are sleeved with supporting fixing cylinders in the vertical direction and fixedly installed through bolts, and lifting threaded rods in the vertical direction are fixedly installed in top extending shafts of lifting motors in an inserted mode. A lifting height limiting rod in the left-right direction is fixedly installed in the middle between the lifting threaded rods, and a fixed connecting plate in the left-right direction is fixedly installed at the top between the supporting and fixing cylinders. And through the arrangement of a supporting ...

High-voltage generator disturbance suppression method, device and equipment and storage medium

The invention provides a high-voltage generator disturbance suppression method, device and equipment and a storage medium, and particularly relates to the technical field of high-voltage generators. The method comprises the following steps: acquiring a closed-loop feedback signal; the closed-loop feedback signal is obtained by sampling an output signal of the high-pressure oil tank; for the target power frequency, filtering the closed-loop feedback signal to obtain a target feedback signal; and adjusting the digital control module based on the target feedback signal. Based on the method, the pertinence and the precision are high when the disturbance suppression function of the high-voltage generator is realized.

Micro-control system execution method and system, electronic equipment and medium

The invention relates to a micro-control system execution method and system, electronic equipment and a medium, and the micro-control system execution method comprises the following steps: after a micro-control system is reset, a cache module loads data from a storage medium to an SRAM (Static Random Access Memory), and in the loading process, under the condition that a kernel fetches instructions, the cache module releases the control right for the storage medium; in the instruction fetching process of the kernel, the kernel determines whether an address to be accessed is loaded to the SRAM or not, and if yes, the kernel obtains data from the SRAM; after the cache module releases the control right to the storage medium, whether instruction fetching of the kernel is finished or not is determined, and if yes, the cache module recovers the control right to the storage medium, so that the starting waiting time is shortened, the problem that the execution efficiency of the micro-control system ...

Combined full-height closed type lifting platform door system

The invention discloses a combined full-height closed lifting type platform door system which comprises a plurality of lifting type platform door units arranged in the longitudinal direction. Each lifting type platform door unit comprises a combined lifting door body, a supporting device and a power device. The supporting device comprises two vertical columns which are adjacent in the longitudinal direction. The combined lifting door body comprises a middle lifting door body and a foundation pit lifting door body, and the middle lifting door body and the foundation pit lifting door body are vertically arranged between the two stand columns up and down. The foundation pit lifting door body is correspondingly provided with a foundation pit, and the middle lifting door body is correspondingly provided with an upper fixing baffle. The power device drives the middle lifting door body and the foundation pit lifting door body to move reversely at the same time or enables the middle lifting door ...

In-vehicle control method, system and device

The invention relates to an in-vehicle control method, system and device, and belongs to the technical field of in-vehicle control. The in-vehicle control method comprises the following steps: acquiring an identity token for identifying a position area of a mobile terminal in a vehicle; establishing a connection with the vehicle-mounted terminal system, and sending the identity token to the vehicle-mounted terminal system after the connection with the vehicle-mounted terminal system is successfully established; acquiring control function item information corresponding to the identity token and sent by the vehicle-mounted machine system, and displaying the control function item information to a controller; and acquiring parameters corresponding to the control function item information, and sending the parameters to the in-vehicle infotainment system. Therefore, people in different position areas can carry out different control so as to meet individual requirements of different passengers ...

Force finding method for string structure based on catenary cable unit

The invention discloses a string structure force finding method based on catenary clue units. According to the method, under the condition that the shape of the string structure is completely determined, the prestress distribution of the whole string structure can be determined through the Newton method according to the internal force of a part of units needing to be specified. Force finding analysis is carried out based on the catenary clue unit, and compared with a rod unit, the result is higher in precision; the calculation principle is based on a Newton method, a proposed tangent stiffness matrix is derived from an equilibrium equation, and stable convergence of a calculation result can be realized. The device is suitable for one-way, two-way and multi-way beam string structures and different types of beam string structures such as beam string trusses and beam string latticed shells; the internal force of the redundant rod piece can be specified, the stress of the structure is uniform ...

Wireless Mesh network and access point planning method

The invention relates to a wireless Mesh network access point planning method, and the method specifically comprises the steps: obtaining the geographic positions and network parameters of wireless devices in a wireless access region, calculating the weight of each wireless device according to the network parameters, and calculating the weight of each wireless device according to the weight of each wireless device; and calculating a wireless network mass center of the wireless access area according to the weight and the geographic position of each wireless device, and taking the wireless network mass center as an access point position of the wireless access area. According to the wireless mesh network access point planning method, the planned access point not only considers the geographic position of the wireless equipment, but also weights the geographic position according to the network parameter of each piece of equipment, so that the access point is arranged at the centroid of the wireless ...

Method for catching snails

The invention discloses a method for catching snails, and relates to a fishery breeding technology. A sliding plate structure is additionally arranged below the fishing net, so that the fishing net can slide along the surface layer of sludge when the fishing net moves to catch the snails; when the fishing net moves, microorganism oxygen-containing liquid is injected to the ends, away from the net bag of the fishing net, of the rake teeth through a torrent injection method. The phenomenon that the net bag of the fishing net sinks into sludge can be effectively prevented, harmful microorganisms in the sludge can be killed, and trawl fishing is facilitated.

Rough brucella melitensis attenuated strain as well as vaccine and application thereof

The invention relates to the field of veterinary biological products, in particular to a rough brucella melitensis attenuated strain and a vaccine and application thereof. The brucella is a naturally separated rough type sheep species brucella attenuated strain and is named as RM101, and the preservation number of the brucella is CGMCC (China General Microbiological Culture Collection Center) No.25728. The brucellosis live vaccine prepared from the rough Brucella melitensis RM101 strain disclosed by the invention has good safety, immunogenicity and efficacy, can be used for immunizing pregnant livestock, does not cause abortion, and makes up for the defect that the existing vaccine cannot be used for pregnant livestock. The vaccine provided by the invention can realize differential diagnosis through a trace agglutination test, and solves the technical problem that the existing brucellosis vaccine cannot realize differential diagnosis of clinically differentiating vaccine immunity and wild ...

Water mixing valve for preventing sudden water spraying of bathroom shower head and use method of water mixing valve

The invention provides a water mixing valve for preventing a bathroom shower head from suddenly spraying water and a using method thereof, and belongs to the technical field of bathroom sanitary wares, the water mixing valve comprises a valve body, a valve rod and a handle, a water flow channel is arranged in the valve body, and a first water outlet and a second water outlet which are communicated with the water flow channel are formed in the bottom of the valve body; a cavity located above the water flow channel is further formed in the valve body, and a partition plate is formed between the cavity and the water flow channel. The valve body is provided with a cut-off mechanism used for opening and closing the water flow channel. The flow dividing mechanism comprises a sealing column, the sealing column is in sliding connection with the second water outlet, and a first water dividing opening and a second water dividing opening which are communicated are formed in the sealing column; the ...

PULSE VOLTAGE GENERATION DEVICE, METHOD, AND CONTROLLER

Provided are a pulse voltage generation device, method, and controller, said device comprising: a transformer; a first AC/DC conversion circuit, the alternating-current side of which is connected to the high-voltage side of said transformer; an energy-storing capacitor, connected to the direct-current side of said first AC/DC conversion circuit and used for storing electrical energy; a discharge control circuit, connected in parallel to the two ends of said energy-storing capacitor and used for controlling the energy-storing capacitor to discharge, generating a high-voltage pulse. In the present invention, an energy-storing capacitor is arranged on the high-voltage side of the transformer, and the energy-storing capacitor is controlled, by means of the discharge control circuit, to discharge and generate a high-voltage pulse, avoiding the problem in which a change in the sensing magnetic field of a transformer causes the frequency of a high-voltage pulse outputted by the high-voltage side ...

Device for detecting air tightness of injection needle

The invention discloses an injection needle air tightness detection device which comprises the components of a holding blowing head which is provided with a containing bin which is communicated with a detection air source and an air pressure detection element, the containing bin is provided with a bin opening, an elastic sealing member is arranged in the bin opening, and the elastic sealing member has a first state in which a gap is kept between the elastic sealing member and the outer wall of a needle tube to realize loading and unloading; in the second state, the outer wall of the needle tube is tightly held to realize sealing; the carrier is used for fixing and sealing the needle seat; the holding blowing head and the carrier are coaxial and can move relatively in the axial direction. According to the invention, the outer wall of the needle tube is contracted and held tightly by using the elastic sealing element holding the blowing head, and the needle seat is fixed by using the carrier ...

Cathode system, cathode control method thereof and fuel cell

The invention discloses a cathode system, a cathode control method thereof and a fuel cell, the cathode side of the fuel cell is provided with an air inlet and an air outlet, and the cathode system comprises an air supply device, an air-water separation device and a switching device; the air supply device comprises an air compressor and a turbo expander which are communicated with each other, and an exhaust port of the air compressor is connected with the air inlet; the air-water separation device is arranged at the air outlet and is used for carrying out air-water separation on air exhausted from the air outlet, and an exhaust port of the air-water separation device is connected with a turbine end inlet of the turbo expander; the switching device comprises a first switching unit, a second switching unit and a third switching unit, the first switching unit is used for at least switching the exhaust port of the air compressor to be communicated with or disconnected from the air inlet, and ...

Building roof identification method and device, electronic equipment and storage medium

The invention discloses a building roof identification method and device, electronic equipment and a storage medium. The building roof identification method comprises the following steps: acquiring a to-be-identified remote sensing image; building segmentation is carried out on the remote sensing image to be identified based on a preset building segmentation model; and recognizing the building roof according to the segmented remote sensing image to be recognized. The to-be-recognized remote sensing image is acquired, building segmentation is performed on the to-be-recognized remote sensing image based on the preset building segmentation model, and the building roof is recognized according to the segmented to-be-recognized remote sensing image, so that rapid recognition of the building roof is realized, the cost of manually recognizing the building roof is reduced, and the precision of recognizing the building roof is improved. And the user experience is improved.

Intelligent transmission control system and method for full-automatic COF bonding machine

The invention discloses an intelligent transmission control system and method for a full-automatic COF bonding machine, relates to the technical field of bonding machines, solves the technical problem that chip substrates with different sizes and different shapes cannot be quickly and effectively processed, and sequentially confirms subsequent determined points and a group of original images according to confirmed edge points, so that the chip substrates with different sizes and different shapes can be quickly and effectively processed. A plurality of edge points exist, corresponding connection trimming lines are confirmed according to the confirmed edge points, and then the edge points are translated according to the connection trimming lines, so that corresponding pre-pressing rings can be confirmed, calibration confirmation is subsequently carried out according to the confirmed pre-pressing rings, and pre-pressing heat-sealing treatment is carried out on the chip substrates. Therefore ...

INDUSTRIAL ROBOT COMPRISING OPERATION SHAFT STRUCTURE

An industrial robot comprising an operation shaft structure, comprising a base (1), a first arm part (2), a second arm part (3) and an operation shaft (41); the first arm part is driven by a first motor (M1) to rotate, and the second arm part is driven by a second motor (M2) to rotate, a helical thread and a splined groove are provided on the operation shaft, a nut sleeve (44) and a harmonic speed reducer (47) are provided on the second arm part, the nut sleeve is rotatable relative to the second arm part, an outer ring (47a) of the harmonic speed reducer is mounted on the second arm part, a sliding sleeve (43) is provided on an output end (47b) of the harmonic speed reducer, an internal spline corresponding to the splined groove is provided in the sliding sleeve in a vertical direction; the operation shaft passes through the nut sleeve, the harmonic speed reducer and the sliding sleeve in sequence from top to bottom, the operation shaft is in a threaded connection with the nut sleeve and ...

Method for predicting CO2 sequestration potential of saline water layer, salt cavern and exhausted oil and gas reservoir

The invention discloses a method for predicting the COz sequestration potential of a salt water layer, a salt cavern and an exhausted oil and gas reservoir. Calculating the total sealing amount of carbon dioxide in the reservoir cavity, wherein the total sealing amount comprises the carbon dioxide sealing amount of an oil and gas abdicating part formed after oil and gas in an oil and gas reservoir are extracted, the dissolving sealing amount of stratum bound water, the dissolving sealing amount of carbon dioxide in residual oil and the sealing amount of water-rock reaction between carbon dioxide and a rock matrix; the method mainly comprises the steps of prediction; determining reservoir types for implementing carbon dioxide sequestration quantity prediction; determining a carbon dioxide sequestration position; parameters needing to be calculated are selected corresponding to different reservoirs; values of calculation parameters are determined through methods such as literature, field ...

Efficient interpretable full-automatic channel pruning method

The invention discloses an efficient interpretable full-automatic channel pruning method, which comprises the following steps of S1, calculating the channel importance of a convolutional layer to be pruned, and converting the channel importance into an information contribution rate; s2, retaining a plurality of channels with the maximum information contribution rate in combination with the current probed accumulated information contribution rate, and S3, performing pruning operation on each convolutional layer of the to-be-pruned model to obtain a pruned model; s4, evaluating the pruned model, and if the reduction of the precision of the test set of the pruned model is within an acceptable range compared with the reduction of the precision of the original model, reserving the pruned model as one of the candidate models; the method has the advantages that the selection algorithm of the channel to be pruned gives consideration to the high efficiency of a metric-based pruning method and the ...

METHOD FOR RECOVERING RARE EARTH ELEMENT FROM NEODYMIUM-IRON-BORON SCRAP BY MEANS OF EXTRACTION WITH LIQUID METAL BISMUTH

Disclosed is a method for recovering a rare earth element from neodymium-iron-boron scrap by means of extraction with liquid metal bismuth. The method involves first melting metal bismuth in an induction heating furnace; then adding a neodymium-iron-boron scrap into the liquid metal bismuth and heating same to melt the neodymium-iron-boron scrap, performing a liquid-liquid phase separation so as to form two immiscible liquid phases, i.e. one rich in bismuth and one rich in iron; then, maintaining the temperature to enrich rare earth elements in the neodymium-iron-boron scrap into the liquid metal bismuth, in order to form a bismuth rare earth alloy melt, with the iron-rich liquid phase being an iron-boron alloy melt; and finally, separating the two alloy melts that are completely split into upper and lower layers (the upper layer is an iron-boron rich alloy melt, and the lower layer is a bismuth rare earth alloy melt). An Fe-B iron-boron alloy can be recycled to produce a neodymium-iron-boron ...

Basket frame automatic positioning and sleeving device

The invention discloses an automatic basket and basket frame positioning and sleeving device, and relates to the technical field of basket and basket frame assembling and machining. Comprising a workbench, a positioning mechanism arranged on the top face of the workbench and used for positioning baskets, a feeding mechanism arranged on the front side of the workbench and used for supplying the baskets, and a taking mechanism arranged above the workbench and used for taking the baskets in the feeding mechanism and conveying and discharging the baskets to the positioning mechanism. And the robots are arranged on the two sides of the workbench and used for putting in the basket or taking out the basket and basket combination body. Through the arrangement of the structure, the number of various devices and the occupied area of a production site are effectively reduced, potential safety hazards are reduced, and the production efficiency is improved.

DATA UPDATE INFORMATION OBTAINING METHOD AND DEVICE, AND DATA SYNCHRONIZATION METHOD AND DEVICE

Disclosed are a data update information obtaining method and device, and a data synchronization method and device. An update identifier field is added to data. When data in a database is updated, an update identifier of the updated data is updated at the same time, so that the updated update identifier is different from the update identifier not updated. By comparing with the update identifier before data update at the end of last synchronization, it can be determined which data is updated. Then, by comparing a current local unique identifier of each piece of data with a local unique identifier of each piece of data at the end of the last synchronization, detailed data update information can be further obtained. Therefore, in the present invention, when updating data, it is not required to maintain the changelog file; when data in a database is processed in batches, it is only required to directly perform corresponding processing on multiple pieces of data, thereby improving the data processing ...

Method and system for converting modes from relational database to document database

The invention provides a method and system for mode conversion from a relational database to a document database, and relates to the technical field of computers, and the method comprises the following steps: extracting a data mode in the relational database; based on an interactive genetic algorithm, completing conversion from the relation model to a document mode; and the document mode obtained by the mode conversion module is displayed and fed back by a user, and iteration is continued subsequently to generate a new document mode. According to the method provided by the invention, all relation tables and foreign key relations in the relation mode are ensured to be converted, and the quality of the converted document mode is measured through the document mode evaluation algorithm, so that the mode conversion process is simplified. For the relation mode, a series of candidate document modes are converted in an iteration mode, the user can evaluate the candidate document modes according ...

PC FILM MATERIAL AND PREPARATION METHOD THEREFOR

Provided are PC film material and preparation method therefor. The PC film material comprises the following components by weight percentage: 70-85% of PC, 5-10% of flame retardant, 1-5% of flame retardant synergist, 0.1-1% of anti-dripping agent, 0.1-1% of high temperature antioxidant, 0.1-1% of lubricant, and 1-2% of white mineral oil. The PC film material has the advantages of good film-forming properties, environment friendliness and flame retardance, low smoke and low toxicity, high glow-wire ignition temperature (GWIT is higher than or equal to 900 degrees centigrade), high glow-wire flammability temperature (GWFI is higher than or equal to 960 degrees centigrade), and high oxygen index (LOI is more than or equal to 44), and is suitable for the fields of electrical and electronic appliances of keyboard insulation, TV/monitor insulation, computer motherboard insulation and the like.

Farmland and tractor track boundary line extraction method and system

The invention discloses a farmland and tractor track boundary line extraction method and system, and relates to the field of smart agriculture. According to the semantic segmentation model established by the method, a traditional semantic segmentation model is improved, a convnext feature extraction network is introduced, a space pooling pyramid is improved, and a self-adaptive attention mechanism module is introduced, so that the problem of insufficient farmland and tractor track boundary recognition precision in a complex farmland scene is effectively solved; and meanwhile, the boundary of the farmland and the tractor track is further processed through edge detection and Hough transform of the predicted image, so that the boundary recognition effect is improved. According to the method, segmentation and extraction of the boundary line of the farmland and the tractor lane are more efficient and accurate, the applicability is higher, technical support is provided for further obtaining high-precision ...

Spacecraft attitude redirection control method based on potential function under complex constraint

The invention discloses a spacecraft attitude redirection control method based on a potential function under complex constraints, belongs to the technical field of spacecraft attitude maneuver planning control and adjustment, solves the attitude planning and control problems of a spacecraft under multi-constraint conditions, and provides a simple and effective solution for a GNRON problem existing in a traditional potential function. The method comprises the following steps: firstly, establishing a spacecraft kinematics and dynamics model described by an error quaternion, and defining an attitude prohibition area and an attitude forcing area by using a unit quaternion; secondly, constructing a strictly convex inverse proportion type potential function by utilizing convex parameterization of the forbidden region and the forced region so as to avoid generation of a local minimum value point; and then an effective solution is given for the GNRON problem existing in the potential function method ...

Conical twin-screw repairing device

The invention aims at solving the problem of conical twin-screw repairing, and discloses a conical twin-screw repairing device comprising a supporting plate. A guide plate is fixedly installed on the surface of the supporting plate, a material storage box is fixedly installed on the left side of the guide plate, a material pump is fixedly installed on the surface of the guide plate, and a second guide pipe is connected between the material pump and the material storage box. A connecting rod is fixedly installed on the right side face of the guide plate. A guide frame is fixedly installed on the right side of the connecting rod. A first spiral spring sleeves the left side face of the guide frame. A sliding block is fixedly installed at the outer end of the first spiral spring. A connecting block is fixedly installed on the left side face of the sliding block. A first guide pipe is connected between the connecting block and the material pump. The outer end of the first guide pipe is fixedly ...

Coil fixing plate

The utility model relates to the technical field of coil installation auxiliary devices, in particular to a coil fixing plate. A coil fixing plate comprises a fixing plate body used for installing a coil body, the coil body is arranged on one face of the fixing plate body, the other face of the fixing plate body is used for installing a circuit board body, a first through hole is formed in the fixing plate body, and a second through hole is formed in the fixing plate body. The first through holes correspond to points to be connected on the circuit board body, and pins of the coil body penetrate through the first through holes and are correspondingly connected with the points to be connected. According to the coil fixing plate provided by the utility model, the first through holes are used for limiting and positioning the pins of the coil body, and the first through holes correspond to the to-be-connected points, so that the pins and the to-be-connected points are positioned and connected ...

Vertical multi-stage pump with symmetrically arranged impellers

The vertical multi-stage pump comprises a motor, a flange type coupler, a motor support, a pump cover, an upper outer shell, a water guide body, a lower outer shell, the impellers, a reverse middle section, a middle section support, a water inlet and outlet section, a pressing block base plate, a pressing block, a pump shaft and a middle section. During installation, a motor shaft is connected with a pump shaft through a flange type coupler, a water guide body is installed in the middle of the pump, and when the pump operates, fluid enters the pump body from the water inlet and outlet section, acts through the multi-stage impeller on the lower portion of the pump, then enters the water guide body, and enters the multi-stage impeller on the upper portion of the pump from the pump cover to act after passing through the water guide body. And finally, the water is conveyed out of the multi-stage pump through the water inlet and outlet section after passing through the upper outer shell, the ...

Leaf age prediction method based on machine learning model

The invention discloses a leaf age prediction method based on a machine learning model, and the method comprises the following steps: measuring and obtaining leaf age data and remote sensing image data of crops in a research area, processing the remote sensing image data, and dividing the processed remote sensing image data and leaf age data into a training set, a verification set and a test set; constructing a Light GBM model and a CatBoost model for predicting the leaf age of the crop, sampling a training set, a verification set and a test set to perform calibration verification on parameters of the models, and selecting model parameters with the highest precision as model parameters of the optimized Light GBM model and CatBoost model; and fusing the optimized LightGBM model and the CatBoost model by adopting a Bayesian model averaging algorithm (BMA), and predicting the leaf age by adopting the fused model. According to the method, complicated manual sampling is omitted, the leaf age ...

Method and device for verifying target site

The invention discloses a method and device for verifying a target locus, and the method comprises a reference genome sequence obtaining step, a reference genome seed sequence extracting step, a sequencing result seed sequence searching step, a temporary target locus determining step, and a step of obtaining a target segment sequence containing the temporary target locus in a sequencing result. According to the method, the target segment and the corresponding sequence of the reference genome are subjected to double-sequence alignment, and the position of the to-be-verified target site in the sequence from the reference genome is determined, so that the target site can be accurately positioned according to the new position of the to-be-verified target site in the double-sequence alignment result in the alignment result. According to the method, the sequencing peak graph containing the to-be-verified target site and the upstream and downstream sequences in the sequencing result can be accurately ...

Torque limiting handle

... 本实用新型涉及封装技术领域，尤其是种扭力限制手柄，包括手柄，手柄的中空壳体内从上至下依次设有压缩弹簧、滑动齿座、固定齿座、连接杆和封帽，滑动齿座与手柄内侧壁沿手柄轴线方向上滑动设置，滑动齿座与手柄内侧壁之间具有防止滑动齿座周向转动的防旋结构，固定齿座和滑动齿座均具有齿牙，并且其齿牙相互咬合，固定齿座与连接杆上部固定连接，封帽套设在连接杆外侧、并与手柄下端固定连接，封帽内具有防止连接杆沿手柄轴线方向运动的限制结构。本实用新型的种扭力限制手柄，固定齿座与连接杆固定连接，扭力到达设定值时，连接杆带动固定齿座产生空转，同时挤压滑动齿座向上滑动，滑动齿座完成回缩过程，使扭力限制手柄获得良好的稳定性。 ...

Water tank and surface cleaning equipment

The invention provides a water tank and surface cleaning equipment. The water tank comprises a water tank body provided with a liquid containing cavity and a flexible partition part, the partition part is obliquely arranged relative to the axis of the liquid containing cavity and connected to the peripheral wall of the liquid containing cavity, and the partition part divides the liquid containing cavity into a clear water cavity and a sewage cavity which are variable in volume. According to the water tank, the partition piece is simple in fixing mode, the manufacturing cost of the water tank is low, the partition piece is fixed in the liquid containing cavity, the partition piece and the cavity wall of the liquid containing cavity only need to be sealed, implementation is easy, under the condition that the partition piece is not damaged, the clear water cavity and the sewage cavity cannot leak at the partition piece, and the service life of the water tank is prolonged. And the water tank ...

Marine swimming crab dicing device for crab paste processing

The sea-caught portunus trituberculatus dicing device for crab paste processing comprises a rack and a conveying chain plate, and a horizontal X-direction dicing mechanism and a horizontal Y-direction dicing mechanism are arranged above the conveying chain plate at intervals; each of the horizontal X-direction dicing mechanism and the horizontal Y-direction dicing mechanism comprises a cutter mounting plate, a longitudinally arranged cylinder and cutters, the longitudinally arranged cylinders are fixed above the conveying chain plate, the end parts of piston rods of the longitudinally arranged cylinders are fixedly connected with connecting plates, the cutter mounting plates are connected with the connecting plates through elastic compression mechanisms, and the cutters are arranged on the bottom surfaces of the cutter mounting plates at intervals; a cutter retracting baffle is fixed below the cutter mounting plate, a cutter containing groove corresponding to the cutter is formed in the ...