型材（凸台凹槽）

ONBOARD TERMINAL-BASED TAXI METERED PRICING METHOD AND SYSTEM

An onboard terminal-based taxi metered pricing method, comprising: S101: initialising a CAN interface of an onboard terminal; S102: obtaining a metering period; S103: obtaining first vehicle mileage information of a vehicle within the metering period via the CAN interface; S104: calculating a riding cost within the metering period according to the first vehicle mileage information. The method simplifies vehicle meter installation and maintenance, and reduces maintenance costs. The CAN interface collects digitised information, thereby increasing metering accuracy, preventing mileage cheating, and effectively ensuring metered pricing accuracy.

香薰瓶

厚壁钢型材（组合式）

Mounting tool for modular arc-shaped motor

The invention discloses a mounting tool for a modular arc-shaped motor, and belongs to the technical field of motors. According to the installation tool for the modular arc-shaped motor, the arc-shaped motor comprises end covers, a machine shell, a rotor, a rotating shaft and a plurality of arc-shaped motor modules, the end covers are arranged at the two ends of the machine shell, and heat dissipation holes corresponding to the circumferential position of a module installation part are formed in the end face of one end cover. The installation tool comprises an installation support and a plug pin movably connected with the installation support, the installation support comprises a lower installation support and an upper installation support which are movably connected, a through hole used for containing the rotating shaft is formed between the lower installation support and the upper installation support, and the plug pin can penetrate through the installation support to enter the heat dissipation ...

Maritime single-person distress alarm communication method and communication device using same

The invention provides a maritime single-person distress alarm communication method. The method comprises the following steps: collecting current state data of a person according to a first preset time interval; when the current state data exceed a threshold value, personnel identity recognition is carried out; performing alarm judgment according to the identity of the person; and sending out an alarm signal according to an alarm judgment result. According to the invention, the motion information of the person in distress and the environment information collected by the sensor are fully utilized as alarm judgment conditions, and the alarm sending time point is advanced, so that the problems of short communication distance and high alarm failure probability caused by large signal attenuation since the alarm signal is sent out after the person falls into water are avoided, and the alarm success rate of the person falling into water is effectively improved.

Stacked multi-link encryption exchange networking method and device for centralized control hydropower station

The invention discloses a centralized control hydropower station stacked multi-link encryption exchange networking method and device. The method comprises the following steps: a centralized control hydropower station monitoring wide area network system performs data intercommunication with each regional site through a public network private line; encrypting the data accessed to the service end by the data of each regional site through longitudinal encryption equipment; encrypted data of a service end is encapsulated in a tunnel and transmitted to an opposite end by using a tunnel technology, so that dynamic learning of network processes among service data and automatic network switching are realized. According to the invention, the underlying network is subjected to full redundancy, so that the normal operation of the service is not influenced when one site equipment has a fault or a line has a fault; encryption equipment is changed between the router and the core switch, so that a longitudinal ...

Mechanical arm positioning method and device, electronic equipment and storage medium

The embodiment of the invention provides a mechanical arm positioning method and device, electronic equipment and a storage medium, and the mechanical arm positioning method comprises the steps that the tail end of a mechanical arm is controlled to reach a plurality of predetermined positioning point positions, and the pose of the mechanical arm when the mechanical arm reaches the positioning point positions is collected; for each positioning point location, calculating a base coordinate of a base of the mechanical arm in a preset coordinate system according to a positioning coordinate of the positioning point location in the preset space coordinate system and the position of the mechanical arm when the mechanical arm reaches the positioning point location, obtaining base coordinates corresponding to the plurality of positioning point locations, and registering a plurality of base coordinates in the preset coordinate system; in the process of using the mechanical arm, the current pose of ...

FITNESS DATA PROCESSING METHOD AND APPARATUS

Disclosed are a fitness data processing method and apparatus. The method comprises: according to user identity identifier information, finishing a user entry event by relieving a gym access control; obtaining a user fitness log generated according to user fitness data, wherein the user fitness data is data collected after a user is identified and generated by using a fitness equipment by the user in real time; and displaying the user fitness log.

MULTI-ROTOR DYNAMIC POWDER SORTING MACHINE, POWDER SORTING METHOD AND ROLLER PRESS FINAL POWDER GRINDING SYSTEM

A multi-rotor dynamic powder sorting machine, a powder sorting method and a final powder grinding system of a roller press, the multi-rotor dynamic powder sorting machine comprising a powder sorting cylinder (1), wherein two or more driving devices (2) are evenly arranged on the top of the powder sorting cylinder (1) in the circumferential direction; a rotor (4) is arranged below each driving device (2); each driving device (2) is connected to the rotor (4) by means of a rotating device (3); all of the rotors (4) are distributed in the same horizontal plane; a powder sorting hopper (5) is provided below each rotor (4); a counter-attack cone (7) is provided below the powder sorting hoppers (5); an air inlet pipe (9) is provided below the counter-attack cone (7), a gap is formed between each air inlet pipe (9) and the powder sorting cylinder (1), and a lower end of the air inlet pipe (9) is an air inlet (10); medium and coarse powder outlets (11) are formed at positions close to the air inlet ...

Wet wafer level chip package structure of side

... 本实用新型公开了一种侧边润湿的圆片级芯片封装结构，属于半导体封装技术领域。其包括硅基衬底和带有若干个芯片电极的芯片，所述硅基衬底的背面设有若干个硅基电极，所述芯片设置在硅基衬底的正面，其芯片电极的信号向下转移至所述硅基衬底的背面的硅基电极，所述硅基电极的向外的侧壁设置若干个金属凸起，所述金属凸起沿硅基衬底的背面向外延伸至硅基衬底的边缘，所述硅基电极与其同侧的金属凸起为一体成形结构，在硅基衬底的侧壁设置开放的孔，所述孔位于金属凸起的正上方，所述孔口径大于金属凸起的宽度尺寸并露出金属凸起的部分或全部，所述孔内填充绝缘物。本实用新型的封装结构可以提高贴片元件与基板的连接可靠性。 ...

Text processing method, system and equipment and storage medium

The invention discloses a text processing method, system and device and a storage medium. The method comprises the steps that key information in preprocessed text data is extracted; determining a corresponding dimension and a corresponding service subdivision label according to the key information, wherein the dimension forms a preset priority according to a preset feature element combination; and determining the accuracy of the service subdivision labels according to the preset priorities and outputting corresponding prompts. According to the text processing method, the key information can be associated with the established service subdivision labels, the service subdivision labels can be accurately graded and confirmed, manual modification and auditing are facilitated, and the accuracy of service subdivision label identification is greatly improved.

Rotary photovoltaic support system

A rotary photovoltaic support system disclosed by the present invention comprises a support column, a cross beam and a vertical beam, a rotary sleeve is movably installed on the support column, the cross beam is sleeved in the rotary sleeve, the vertical beam is erected on the cross beam at intervals and is fixedly connected with the cross beam through a corner connector, and a rotary support member used for adjusting the rotation angle of the cross beam is fixedly installed on the support column. The rotary supporting piece is fixedly connected with the cross beam through a hoop, a rotation stopping function part is arranged on the cross beam, and the cross beam is arranged to be a quasi-circular pipe with a flat and straight face. The connecting structure has the advantages of being firm in connection and high in wind pressure resistance.

Impurity treatment device for primary processing of medicinal materials

The impurity treatment device comprises a treatment device body, a rotating separation mechanism, a stirring separation mechanism, a vortex power mechanism, an impurity filtering mechanism and a microfiltration mechanism, the rotating separation mechanism is arranged in the treatment device body and used for separating impurities in medicinal materials, and the stirring separation mechanism is arranged in the treatment device body and used for separating impurities in the medicinal materials. The treatment device body is used for improving the separation effect of the rotary separation mechanism and is provided with a vortex power mechanism, and the vortex power mechanism comprises an impurity filtering bin. According to the medicinal material impurity treatment device, by arranging corresponding mechanisms on the medicinal material impurity treatment device, the medicinal material impurity removal efficiency is improved, time waste is reduced, the possibility of incomplete impurity removal ...

Roof temperature deformation joint structure of steel structure building

The invention provides a steel structure building roof temperature deformation joint structure and relates to the technical field of steel structure buildings, the steel structure building roof temperature deformation joint structure comprises a cover plate and a base, the cover plate is herringbone, a first connecting plate and a second connecting plate are symmetrically arranged below the cover plate, the first connecting plate is of a telescopic structure, and the top of the first connecting plate is slidably connected with the cover plate; the top of the second connecting plate is fixedly connected with the cover plate; the number of the bases is two, the bases are in an inverted L shape and are symmetrically arranged below the cover plate, the bottom of the first connecting plate and the bottom of the second connecting plate are slidably connected with the tops of the corresponding bases correspondingly, a first waterproof structure is arranged between the tops of the two bases, and ...

Method for producing high-fluidity homo-polypropylene material by adopting reactor hydrogen regulation method

The invention provides a method for producing a high-flowability homo-polypropylene material by adopting a reactor hydrogen regulation method, an advanced gas phase fluidized bed production process is used, and a high-hydrogen regulation sensitive catalyst system is CONSISTAC602 which does not contain phthalate; in the process of producing the high-flowability homo-polypropylene, the molecular weight of polypropylene is reduced by increasing the addition amount of hydrogen, so that the melt index of the product is increased, and the problems of excessive fluctuation of the melt index of the product, yellowing of the product, peculiar smell and the like are effectively avoided. In the reaction process, the process steps of prepolymerization, ash removal, irregular material removal and treatment and the like are avoided, and polymer-grade propylene and hydrogen of an ethylene cracking device are used as production raw materials to produce the product. By adopting the production process, the ...

Leighting combined positioning method and device and storage medium

The embodiment of the invention provides a thunder-vision combined positioning method and device and a storage medium, and can be applied to the technical field of intelligent transportation. The method comprises the following steps: respectively carrying out internal reference calibration on a camera and a radar; the camera and the radar correspond to a camera coordinate system and a radar coordinate system respectively; determining a control point based on the reference point set and the radar information; the radar information comprises radar speed information, radar depth information and radar rotation information collected by a radar; determining an incidence relation between the control point under the world coordinate system and a camera coordinate system; determining a center fusion relation between a camera coordinate system and a world coordinate system; and integrating the incidence relation and the center fusion relation to map the radar information to an image coordinate system ...

Discriminant convolutional feature learning fault judgment method

The invention discloses a discriminative convolutional feature learning fault judgment method, relates to the technical field of artificial intelligence, and solves the technical problem that in the prior art, the intra-class compactness of deep convolutional features is difficult to judge in time, so that the discrimination of a convolutional neural network is relatively weak. The method comprises the following steps: performing feature visualization on a plurality of depth features in real time to obtain a feature viewer; determining a visualization center and a plurality of corresponding radial feature lines based on the feature views; judging whether the depth features meet requirements or not based on the vertical distances between the plurality of depth features and the adjacent radial feature lines; according to the invention, the learning fault is judged through calculation, so that the judgment accuracy is improved; according to the method, whether a fault is learned or not is ...

Checking method and device of fake-licensed taxi, vehicle-mounted electronic equipment and storage medium

The invention discloses a fake-licensed taxi checking method and device, vehicle-mounted electronic equipment and a storage medium. The method is characterized by comprising the steps that vehicle identification information of a second vehicle is obtained through a first vehicle, whether the second vehicle is a vehicle to be verified or not is judged according to the vehicle identification information, and the vehicle identification information comprises a vehicle license plate number; if the second vehicle is the to-be-verified vehicle, vehicle verification is carried out on the to-be-verified vehicle through the first vehicle; and if the to-be-verified vehicle does not pass the vehicle verification, checking the to-be-verified vehicle through a preset vehicle checking system. According to the embodiment of the invention, the fake-licensed vehicle is accurately checked, and the checking efficiency of the fake-licensed taxi is improved.

Flame-retardant aerogel microspheres and preparation method thereof

The invention discloses a preparation method of flame-retardant aerogel microspheres, which comprises the step of preparing the flame-retardant aerogel microspheres by adopting a phosphorus-containing siloxane precursor through a sol-gel method. The flame-retardant gas gel microspheres have excellent flame retardant property.

METHOD FOR PREPARING HYDROCRACKING CATALYST

Disclosed is a method for preparing a hydrocracking catalyst, the method involving modifying a new functional group on the surface of a conventionally prepared inorganic carrier by means of chemical bonds, and then loading a group VIB metal element and a group VIIIB metal element thereon to prepare the hydrocracking catalyst. The resulting hydrocracking catalyst has a higher diesel liquid yield.

Distributed planning solving method and system of integrated energy system

The invention belongs to the technical field related to comprehensive energy, and provides a distributed planning solving method and system of a comprehensive energy system, the comprehensive energy system is decomposed into an electricity-heat combined subsystem and a natural gas subsystem, and an inner-layer algorithm is adopted in the electricity-heat combined subsystem to realize locating and sizing planning of a distributed photovoltaic power station. The optimal energy supply plan is realized in the natural gas subsystem, only the information at the coupling position is interacted between the two subsystems, the information protection and high-performance calculation solving efficiency of each subsystem are considered, and the high-efficiency solving calculation of the distributed power supply locating and sizing plan and the energy supply of which the information of the comprehensive energy system is not completely shared is realized.

Quadruple PCR primer group and kit for detecting chicken coccidiosis

The invention discloses a quadruple PCR primer group and a kit for detecting chicken coccidiosis, and relates to the technical field of chicken coccidiosis biological detection. Compared with the prior art, the detection results of four chicken coccidiosis can be obtained at the same time, the detection and identification time is greatly shortened, a guarantee is provided for timely prevention of spreading of chicken coccidiosis, and the coccidiosis oocyst lysate provided by the invention can be used for rapidly obtaining a DNA template for quadruple PCR detection; the quadruple PCR primer provided by the invention is high in detection specificity, low in detection limit, good in repeatability and reliable in result.

METHOD FOR PACKAGING LOW-K CHIP

Provided is a method for packaging a low-k chip, comprising: attaching onto a carrier wafer a layer of temporary strippable film; arranging inversely a chip (2-1) onto the carrier wafer via the temporary strippable film; attaching thin film layer I (2-4) onto the carrier wafer for packaging; bonding a support wafer (2-5) onto the thin film layer I (2-4) and solidifying; forming a reconstructed wafer consisting of the chip (2-1), thin film layer I (2-4), and the support wafer; detaching the reconstructed wafer from the carrier wafer; completing a rewired metal wiring (2-6) on thin film layer I (2-4); forming a metal column (2-7) at an end of the rewired metal wiring (2-6); attaching thin film layer II (2-8) onto a surface of the metal column (2-7), packaging, and solidifying; coating a metal layer (2-9) on the top of the metal column (2-7), forming BGA solder balls (2-10) on the metal layer (2-9) by means of printing or ball planting; and finally slicing into individual BGA packages the ...

Preparation method of toughened modified PLA (polylactic acid) material

The invention discloses a preparation method of a toughened modified PLA (polylactic acid) material, which comprises the following steps: carrying out surface modification on nano calcium carbonate through cane sugar to obtain modified nano CaCO3; the modified nano CaCO3 and a soft toughening agent are subjected to melt blending, extrusion and granulation, and the modified nano CaCO3 core-shell structure composite material is obtained; the modified nano CaCO3 core-shell structure composite material is used for toughening and modifying PLA resin, and straw is added as a filler to obtain the toughened and modified PLA material. The modified nano CaCO3 core-shell structure composite material is used for toughening the modified PLA resin, and the straw is added as a filler, so that the toughness and strength of the PLA material are improved, and the cost of the PLA material is reduced.

Waterproof junction box for switch cabinet

The invention provides a waterproof junction box for a switch cabinet. The junction box comprises a junction box base and a junction box cover connected with the open end of the junction box base. Corresponding wiring holes are formed in the bottom of the wiring box base and the wiring box cover, wiring terminals are arranged in the wiring box base and correspond to the wiring holes, the two ends of each wiring terminal are connected with a wire penetrating through the corresponding wiring hole in the cable chamber and a wire in the mechanism chamber respectively, and sealing rings are arranged on the inner peripheries of the wiring holes. And the sealing ring is tightly attached to a wire passing through the wiring hole. The wire in the cable chamber and the mechanism chamber can be connected through the arranged wiring terminal, the sealing ring is arranged on the inner periphery of the wiring hole, and the sealing ring is tightly attached to the wire penetrating through the wiring hole ...

LED PACKAGING STRUCTURE

An LED packaging structure comprises a silicon-based body (110) and an LED chip (200). Discontinuous metal reflective layers (410, 420) are disposed on the obverse surface of the silicon-based body (110). A metal layer I (810) and a metal layer II (810) that are discontinuous are disposed in a silicon through hole (111). An LED chip electrode (210), a metal block/post (321), the metal reflective layer (410) and the metal layer I (810) are electrically connected. An LED chip electrode (220), a metal block/post (322), the metal reflective layer (420) and the metal layer II (820) are electrically connected. A metal layer III (830) is located on a surface of an insulation layer II (520) at the back of the silicon-based body (110) and is located between the metal layer I (810) and the metal layer II (820). According to the packaging structure, the LED packaging structure with omnidirectional light emission is obtained by means of a wafer level packaging technology; the LED packaging structure ...

MIDDLE FRAME MANUFACTURING METHOD AND MIDDLE FRAME, AND TELEVISION

A middle frame manufacturing method and a middle frame, and a television. The middle frame is made of pre-coated metal, and the middle frame is roll-formed. An application of a PCM material in the field of production of televisions is achieved. In the process of manufacturing the middle frame, the turnover and transportation in spray coating and anode processes are omitted, operation efficiency is improved, and production costs are reduced.

Vital sign monitoring method and device

The invention relates to the technical field of radar vital sign monitoring, and particularly discloses a vital sign monitoring method and device, and the method comprises the steps: obtaining echo data; performing 3D-FFT processing on the echo data to determine whether the echo data contains a target; under the condition that the target is determined to be contained, performing target detection to obtain a micro-Doppler signal corresponding to the vital signs; performing phase extraction on the micro-Doppler signal to obtain phase information; filtering the phase information by using a first band-pass filter and a second band-pass filter to obtain first phase data and second phase data; performing frequency tracking on the first phase data and the second phase data based on an M-Rife interpolation algorithm to obtain a first frequency value and a second frequency value; the first frequency value is used for representing the first vital sign; the second frequency value is used for representing ...

UNMANNED AERIAL VEHICLE CONTROL SYSTEM AND UNMANNED AERIAL VEHICLE CONTROL METHOD

An unmanned aerial vehicle control system and an unmanned aerial vehicle control method, being used for implementing multi-terminal monitoring of an unmanned aerial vehicle, and using any one of the monitoring terminals as a control terminal. The unmanned aerial vehicle control system comprises a base station (10), a first terminal (20), and a second terminal (30). The first terminal (20) and the second terminal (30) are respectively in communication connection with the base station (10). The first terminal (20) is configured to generate an unmanned aerial vehicle control request, and send the unmanned aerial vehicle control request to the base station (10). The base station (10) is configured to receive the unmanned aerial vehicle control request sent by the first terminal (20); according to the unmanned aerial vehicle control request and the current state, saved by the base station (10), of the second terminal (30), determining whether the first terminal (20) has a priority control right ...

Data enhancement method and system suitable for small sample learning task of target detection algorithm

The invention relates to the technical field of target detection based on deep learning, in particular to a data enhancement method and system suitable for a small sample learning task of a target detection algorithm. The invention provides a data enhancement method and system suitable for a small sample learning task of a target detection algorithm in order to solve the defect that a traditional target detection algorithm gradually loses efficacy in the aspect of small sample learning along with reduction of the number of data sets. According to the target detection data set expansion method based on the copy and pass algorithm and the U2Net image segmentation tool, operations such as cutting, copying, enhancing and pasting are carried out on an instance of a detection target to expand a training sample set, and meanwhile, the background of the target instance is eliminated by adopting the pre-training U2Net image segmentation algorithm, so that the target instance can be fused in a new ...

IMMUNOGENIC COMPOSITION AND APPLICATION THEREOF

The present invention provides one or more immunogenic compositions, comprising a domain of a SARS-CoV2 S (Spike) protein. The present invention further provides the immunogenic composition(s) and an application thereof.

LOW-K CHIP PACKAGING STRUCTURE

A low-k chip packaging structure comprising chip body I (2-1), a chip electrode (2-2), and a chip surface passivation layer (2-3). Chip body I (2-1) has coated thereon thin film layer I (2-3). Thin film layer I (2-3) has arranged on a rear face thereof a support wafer (2-5). A chip electrode (2-2) is transferred to thin film layer I (2-4) around the exterior of the chip via a rewired metal wiring (2-6). The rewired metal wiring (2-6) has arranged at an end thereof a metal column (2-7). The metal column (2-7) has coated thereon thin film layer II (2-8). The top of the metal column protrudes thin film layer II (2-8). The protruding top of the metal column (2-7) has arranged thereon a metal layer (2-9). The metal layer (2-9) has arranged thereon soldering balls (2-10). The low-k chip packaging structure solves the problem of invalid low-k chip due to concentration of stress during chip packaging process and allows for reduced packaging costs and great product reliability.

Damping photovoltaic frame and support integrated assembly

A damping photovoltaic frame and support integrated assembly disclosed by the present invention comprises a vertical beam and a photovoltaic frame, the vertical beam is integrally formed with a notch, an installation edge and a connection edge, the photovoltaic frame is provided with a clamping part used for clamping a photovoltaic panel, the photovoltaic frame is also provided with a connection plate used for being fixedly connected with the vertical beam, the clamping part is embedded in the notch, and the connection plate is fixedly connected with the vertical beam. And a buffer strip is arranged between the clamping part and the notch. The frame has the advantages of being high in strength and low in cost, mounting gaps are eliminated, frame vibration is avoided, and structural damage is prevented.

On-site measurement method for roughness of smooth blasting rock surface

The invention belongs to the technical field of blasting construction, and particularly relates to a smooth blasting rock surface roughness field measurement method, which comprises the following steps: S1, mounting a support rod at the center of a to-be-measured area of a blasting rock surface, and mounting another support rod at the outer edge of the to-be-measured area; s2, a sliding assembly is arranged on a sliding rail in a sleeving mode, then the sliding rail is installed between the top ends of the two supporting rods, and the sliding rail is made to be in a horizontal state; s3, the laser measuring instrument installed on the surface of the sliding assembly is driven by the sliding assembly to slide along the sliding rail, and meanwhile multi-point measurement is conducted on the height of the passed rock surface; s4, the positions of the two supporting rods are adjusted, and the laser measuring instrument works in a reciprocating mode, so that the roughness of the rock surface ...

Photonic crystal fiber connector and preparation method thereof

The invention belongs to the technical field of optical fiber connectors, and discloses a photonic crystal optical fiber connector and a preparation method thereof. The photonic crystal fiber connector comprises a photonic crystal fiber, a bridge fiber and a connector assembly, a light-transmitting positioning plate is embedded in an insertion core of the connector assembly, and the photonic crystal fiber and the bridge fiber are fixed to the two sides of the light-transmitting positioning plate respectively. The mode field diameter of one end, close to the light-transmitting positioning plate, of the bridge fiber is consistent with the mode field diameter of the photonic crystal fiber, one end, away from the light-transmitting positioning plate, of the bridge fiber serves as an end face in butt joint with other optical fiber connectors, and the mode field diameter of the end is consistent with the mode field diameter of other optical fiber connectors in butt joint. When the photonic crystal ...

Method for assembling large-diameter three-eccentric center butterfly valve

The invention provides an assembling method for a large-diameter three-eccentric center butterfly valve. The assembling method comprises the steps that a valve body is placed on an assembling platform; the valve plate is hung into the inner cavity of the valve body; bearings are arranged in the valve body and are respectively arranged in a first mounting channel of a valve rod in the valve body; a coaxial sleeve is mounted in the first mounting channel by taking the bearing as a guide, one end of the coaxial sleeve penetrates through the first mounting channel and then extends into a second mounting channel for mounting a valve rod in the valve plate, so that the valve plate is supported in the valve body by the coaxial sleeve, and the valve plate and the valve body are fixedly connected; and one coaxial sleeve is taken out, the valve rod is hoisted and aligned with the first mounting channel, the valve rod sequentially penetrates through the bearing, the second mounting channel and the ...

Machine request behavior identification method and device, electronic equipment and storage medium

According to the machine request behavior recognition method and device, the electronic equipment and the storage medium, the to-be-detected time interval of the to-be-detected IP address is determined through the absolute high-frequency threshold value and the relative high-frequency threshold value, the judgment range of the machine request behavior is narrowed, and the user experience is improved. And then determining a frequency risk value, a stability risk value and a difference risk value of the to-be-detected IP address in the corresponding to-be-detected time interval based on the request quantity, the request time interval and the interface quantity of the to-be-detected IP address in each to-be-detected time interval, so as to determine the to-be-detected IP address in the corresponding to-be-detected time interval based on the frequency risk value, the stability risk value and the difference risk value. According to the method, the time interval in which the machine request behavior ...

CHIP PACKAGING STRUCTURE, AND PACKAGING METHOD THEREOF

The present invention relates to the technical field of semiconductor packaging, and provides a chip packaging structure, and packaging method thereof. The structure comprises a silicon-based main body (1) and chip electrodes (11). The silicon-based main body (1) is provided with a passivation layer (12) and passivation layer openings (121) on a front face thereof. The chip electrodes (11) have rear faces embedded in the front face of the silicon-based main body (1). The passivation layer openings (121) expose front faces of the chip electrodes (11). A dielectric layer (4) is provided on an upper surface of the passivation layer (12), and dielectric layer openings (41) are provided. Metal protrusion structures (5) are provided on the front faces of the chip electrodes (11). An encapsulation layer (3) is provided on side walls and a rear face of the silicon-based main body (1). The chip packaging structure of the present invention employs insulation protection on side walls to avoid electrical ...

FUSION PROTEIN AND APPLICATION THEREOF

The present application relates to one or more fusion proteins, comprising a structural domain of SARS-CoV-2 S(Spike) protein. The present application also relates to an immunogenic composition comprising the fusion protein and an application thereof.

METHOD, SYSTEM AND DEVICE FOR PROCESSING VECTOR GRAPHICS IN COMPUTER IMAGE PROCESSING

Disclosed are a method, system and device for processing vector graphics in computer image processing. In the present invention, because triangles are only formed in a valid area above a current scanning line in communication with a vertex, unnecessary triangle subdivision is reduced, the calculated amount is greatly reduced because of a lower number and larger size of triangles, the subsequent graphics processing efficiency is higher based on the triangles, the order of movable sides is guaranteed by the order of vertex lower side tables and the order of vertices, and intersection points are ordered to further reduce the amount of calculation. Meanwhile, polygon vertices are quickly ordered using the even/odd fill rule and non-zero fill rule, so that memory data is moved least in a memory, and the graphics processing efficiency is increased.

River basin power station combined dispatching total load adjusting method and system

The invention discloses a river basin power station combined dispatching total load adjusting method and system. The method comprises the steps that according to a provincial dispatching plan curve, water regime, water level, expected dispatching, flood season and dry season conditions, all power station reservoir water level operation intervals of a river basin are obtained; according to the water level operation intervals of all the power station reservoirs, the water level indexes of the corresponding power station reservoirs are solved, and the load distribution proportion of each power station is solved according to the water level indexes of the power station reservoirs; and automatically setting a load distribution strategy according to the load distribution proportion in combination with a drainage basin cascade power station group system. Solving the optimal load distribution proportion of each power station by considering the conditions of a provincial dispatching plan curve, ...

PACKAGING STRUCTURE OF SEMICONDUCTOR CHIP AND PACKAGING METHOD THEREFOR

A packaging structure of a semiconductor chip and a packaging method therefor, the packaging structure of the semiconductor chip comprising a silicon-based body (10), wherein rewiring metal layers I (14) are disposed above the silicon-based body (10); metal columns (20) are disposed at input/output ends I (141); encapsulation layers (40) wrap over exposed surfaces of the metal columns (20) and the rewiring metal layers I (14) and side walls of the silicon-based body (10) and expose the upper surfaces of the metal columns (20); dielectric layers (50) are arranged on the upper surfaces of the encapsulation layers (40), and openings (501) of the dielectric layers are arranged to expose the upper surfaces of the metal columns (20); the upper surfaces of the dielectric layers (50) are provided with rewiring metal layers II (30), and the rewiring metal layers II (30) are fixedly connected to the metal columns (20) by means of the openings (501) of the dielectric layers; input/output ends II ( ...

Energy-saving green building material and preparation method thereof

The invention relates to the field of building materials, in particular to an energy-saving green building material and a preparation method thereof.The energy-saving green building material is prepared from, by weight, 800-1000 parts of cement, 400-600 parts of recycled aggregate, 100-200 parts of quartz powder, 50-100 parts of basalt fiber, 10-30 parts of foam particles, 5-10 parts of auxiliaries and 200-300 parts of water; the building material prepared from the recycled aggregate has higher mechanical property, lower heat conductivity coefficient and favorable heat insulation property, and can effectively reduce heat transfer, thereby achieving the purposes of energy conservation and emission reduction.

A device for fixing trionychidae animal

... 本实用新型公开了一种用于固定鳖科动物的装置，它包括用于托起鳖的托板，所述托板上设置有用于套住鳖头颈部的锁块、用于压住鳖腹甲的腹甲固定夹以及用于夹紧鳖裙边的裙边固定夹；所述腹甲固定夹包括压板及压板弹簧，所述压板的一端铰接在所述托板上，所述压板的中部设置有与托板连接的压板弹簧。锁块可以锁住鳖的头部，压板弹簧可以将压板拉向托板，使抬起后的压板具有固定鳖腹甲的作用，裙边固定夹可以夹紧鳖的裙边，该装置通过对鳖的头部、裙边以及腹甲进行固定，将鳖限定在托板上，对鳖形成了平稳的夹持限位效果，同时限定了头部和颈部，具有较高的操作安全性。 ...

Method and device for relocating information safety equipment, server and medium

The invention provides an information safety equipment relocation method and device, a server and a medium, and the method comprises the steps: control equipment determines the type of to-be-relocated information safety equipment according to an obtained identifier, sent by relocation equipment, of the to-be-relocated information safety equipment, and sends the to-be-relocated information safety equipment to the relocation equipment; and when the control equipment judges that the type of the to-be-moved information security equipment is a service continuous type, the control equipment acquires a service continuous moving strategy corresponding to the identifier of the to-be-moved information security equipment, so that the control equipment performs service continuous moving according to the service continuous moving strategy. And controlling the relocation equipment and standby information security equipment corresponding to the information security equipment to be relocated, and carrying ...

ONBOARD TERMINAL-BASED TAXI METERED PRICING METHOD AND SYSTEM

The present application is applicable to the technical field of taxi pricing, and provides an onboard terminal-based taxi metered pricing method and system, comprising: initialising a CAN interface of an onboard terminal; obtaining a metering period; obtaining first vehicle mileage information of a vehicle within the metering period via the CAN interface; calculating a riding cost within the metering period according to the first vehicle mileage information. The present application simplifies vehicle meter installation and maintenance, and reduces maintenance costs. The CAN interface collects digitised information, thereby increasing metering accuracy, preventing mileage cheating, and effectively ensuring metered pricing accuracy.

Auxiliary verification platform for electroscope

The utility model relates to an auxiliary verification platform for electroscopes, which comprises a box body, a partition plate is arranged in the box body, a wireless monitoring device and a verification device are respectively arranged on two sides of the partition plate, the verification device comprises an insulating support table arranged at the bottom of the box body, a conductive device is arranged on the insulating support table, and a plurality of electroscope plug holes are arranged on a top cover of the box body. According to the utility model, batch verification can be carried out on electroscopes, verification efficiency is improved, data can be monitored in real time, and the whole structure is stable and safe.

Photovoltaic panel supporting frame capable of preventing hands from being scratched

The invention discloses an anti-scratch photovoltaic panel support frame, which comprises a plurality of photovoltaic frames and framing corner connectors, each photovoltaic frame is provided with an accommodating cavity into which the framing corner connectors can be inserted so as to realize the assembly of two adjacent photovoltaic frames, each photovoltaic frame is provided with a clamping groove for clamping a photovoltaic panel, the framing corner connectors are provided with a plurality of clamping teeth, and the clamping teeth are provided with clamping grooves for clamping the photovoltaic panel. The photovoltaic frame is provided with fastening riveting points which extend towards the containing cavity and are used for being connected with the clamping teeth in a matched and clamped mode, a decorative cover with round corners is installed on the framing corner connector, the decorative cover is provided with an inserting plate, and the inserting plate and the framing corner connector ...

Method and device for controlling process to access file, medium and electronic equipment

The embodiment of the invention provides a method and device for controlling a process to access a file, a medium and electronic equipment. The method for controlling the process to access the file comprises the steps that a process white list and a preset feature value set from a management platform are received; if it is confirmed that a first process accessing a file on the client belongs to an unknown process according to a process white list, analyzing an access request corresponding to the first process to obtain a feature value of the file; and if it is confirmed that a target preset feature value matched with the feature value exists in the preset feature value set, intercepting the access request. Some embodiments of the application can solve the problem that a user does not know where a file is stored and does not know which suffix names of the file need to be protected by driving to capture file access actions and matching file feature values.

Obstacle tracking method and device based on self-vehicle coordinate system, vehicle and medium

The invention discloses an obstacle tracking method and device based on a self-vehicle coordinate system, a vehicle and a medium. The method comprises the following steps: acquiring a state offset parameter of a current vehicle at a state updating moment relative to an initial moment; inputting the state offset parameter into a preset self-vehicle coordinate system model to obtain a target pose transformation matrix of the current vehicle from the initial moment to the state updating moment; extracting a target translation offset item and a target rotation offset item in the target pose transformation matrix, and obtaining an initial state quantity of a target obstacle; the target translation offset item and the target angle offset item are combined with the initial state quantity of the target obstacle to be input into a preset obstacle tracking model, and the prediction state of the target obstacle is obtained; wherein the obstacle tracking model comprises motion model noise and a self-vehicle ...

Electric driving system for mining scraper conveyer

The invention discloses an electric driving system for a mining scraper conveyor, which comprises a motor and a controller, the motor comprises a casing, a stator assembly, a rotor assembly and a rotating shaft, the stator assembly is fixed on the casing, the rotor assembly is fixed on the rotating shaft, the rotating shaft is rotatably arranged on the casing along the axial direction, the rotor assembly is arranged in the stator assembly, and the controller is arranged in the casing. The stator assembly comprises a stator core and a stator winding, the stator winding comprises a plurality of coils, each coil is provided with two lead ends, and the driving circuit board is provided with a plurality of clamping pieces used for clamping the lead ends. The rotor assembly comprises a rotor iron core, a right end plate, a left end plate, a cooling liquid guide ring and a cooling liquid spray pipe. The lead wire end of the stator winding is communicated with the cooling cavity, so that the stator ...

Cooling crystallization recovery equipment

The invention relates to the technical field of sewage treatment, in particular to cooling crystallization recovery equipment which comprises a crystallization box, cold water tanks are fixedly installed at the upper end in the crystallization box in an array mode, a conveying belt is installed at the lower end in the crystallization box, a collecting box is fixedly installed at the lower end of the crystallization box, and one end of the conveying belt is located at the upper end of the collecting box. The collection box is communicated with the crystallization box, a spiral conveyor is fixedly installed on one side of the collection box in an inclined mode, and a water inlet pipe and a water outlet pipe are fixedly installed at the upper end and the lower end of one side of the crystallization box respectively. And through the lifting scraping plate, crystals attached to the cold water tank can be conveniently scraped off, cleaning is convenient, it is avoided that the crystals are attached ...

LPS modified clodronate disodium liposome as well as preparation method and application thereof

The invention relates to an LPS (Lipopolysaccharide) modified disodium clodronate liposome as well as a preparation method and application thereof. The preparation method comprises the following steps: modifying LPS on the surface of the disodium clodronate liposome; the liposome can effectively target macrophages and hepatic stellate cells with high expression of TLR4 in the liver, so that the cells are killed and cleared. According to the LPS-modified clodronate disodium liposome disclosed by the invention, the effect of targeted killing of hepatic stellate cells is increased on the basis of enhancing targeted macrophages. In addition, in a hepatic fibrosis model, the traditional Chinese medicine composition is proved to have a good anti-fibrosis effect and can be used for inhibiting hepatic fibrosis.

Image information transmission method and device of taxi, electronic equipment and storage medium

The invention discloses an image information transmission method and device of a taxi, electronic equipment and a storage medium. The method is characterized by comprising the following steps: receiving an image calling request for vehicle-mounted image information through a preset communication line; inquiring vehicle-mounted image information according to the image calling request; if the vehicle-mounted image information conforming to the image calling request is queried, transmitting the queried vehicle-mounted image information to a preset display client through a preset video line, so that the display client displays the vehicle-mounted image information; wherein the display client comprises a video encoder and an image display terminal. According to the embodiment of the invention, cross-network transmission of the vehicle image information under network isolation is realized, safe transmission is carried out through the serial port line and the video line, and the safety of image ...

Intelligent charging method and device, computer equipment and storage medium

The invention discloses an intelligent charging method and device, computer equipment and a storage medium. The intelligent charging method comprises the following steps: acquiring a first moment when a charging gun is inserted into a charging pile, and acquiring a second moment when the charging gun is pulled out of the charging pile; acquiring a charging period setting direction of a charging pile into which a charging gun is inserted; the charging time period setting direction comprises a forward charging state and a reverse charging state, the charging time is set from the first moment to the second moment in the forward charging state, and the charging time is set from the second moment to the first moment in the reverse charging state; and controlling the charging gun to charge the battery according to the charging period setting direction. According to the embodiment of the invention, different charging periods are selected according to different chargeable intervals to charge the ...

Feature vector determination method in anomaly detection and anomaly detection method and device

The invention relates to the technical field of industrial defect detection, in particular to a feature vector determination method in anomaly detection and an anomaly detection method and device, and can solve the problem of excessive detection of a to-be-detected image to a certain extent. Extracting a first feature vector from the positive sample image through a pre-trained first network model; triggering the second network model to fit the first network model, and extracting a second feature vector from the sample image through the fitted second network model; determining a difference value between each first feature vector and the corresponding second feature vector in the angle space; normalizing the difference value, and determining the attention weight of the corresponding position area in the positive sample image; performing enhancement processing on the first feature vector through the attention weight, and determining a target feature vector which is used for performing anomaly ...

Deterioration simulation and gas product detection multifunctional experimental device

The invention provides a degradation simulation and gas product detection multifunctional experimental device, which comprises an environmental parameter simulation unit used for changing and detecting environmental parameters of a multifunctional laboratory; the tracking resistance experiment unit is used for carrying out surface leakage current resistance and non-tracking capability detection on the to-be-detected insulating material according to a preset dropping liquid flow rate; the insulation fault simulation experiment unit is used for carrying out an insulation fault simulation experiment on the separable connector to be tested according to a preset regulation voltage value; the gas detection unit is used for performing component and concentration analysis detection on the to-be-detected gas; and the power supply unit is used for supplying power to the whole multifunctional experimental device. The experimental device provided by the invention integrates a simulation experiment ...

Functionalized polyvinyl alcohol material and preparation method thereof

The invention provides a functionalized polyvinyl alcohol material and a preparation method thereof, and relates to the field of polyvinyl alcohol material preparation. The preparation method of the functionalized polyvinyl alcohol material comprises the following steps: preparing modified silicon dioxide: dispersing silicon dioxide in anhydrous toluene, dropwise adding an amino modifier, heating, refluxing, cooling, washing and drying in vacuum to prepare the modified silicon dioxide; the preparation method of the polyvinyl alcohol composite membrane comprises the following steps: dispersing the modified silicon dioxide in deionized water, adding polyvinyl alcohol, heating, stirring, cooling, respectively adding 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and N-hydroxysuccinimide, adding carboxyl-containing quaternary phosphonium salt, reacting, standing, and scraping the membrane. The functionalized polyvinyl alcohol material and the preparation method thereof provided ...

Multifunctional seeder special for beet

The invention relates to a multifunctional special beet seeder which comprises a mounting frame, a connecting groove connected with a traction machine is formed in one end of the mounting frame in the advancing direction, mounting grooves are uniformly formed in the mounting frame, seeding mechanisms are arranged in the mounting grooves, and a connecting sleeve frame is arranged at one end, away from the advancing direction, of the mounting frame. An irrigation mechanism for watering and fertilizing is mounted in the connecting sleeve frame; in the sowing process of the sowing mechanism, the irrigation mechanism can be driven to perform drip irrigation type fertilizer and water irrigation around seeds in soil, and compared with watering and fertilizing of the seeds in the prior art, on one hand, the watering and fertilizing efficiency is improved; and on the other hand, the precision degree of irrigating the seeds is improved, the utilization rate of water and fertilizer is increased, and ...

Phototransistor based on cadmium sulfide/tungsten diselenide heterojunction and preparation method and application thereof

The invention belongs to the technical field of phototransistors, and discloses a cadmium sulfide/tungsten diselenide heterojunction-based phototransistor and a preparation method and application thereof. The photoelectric transistor is based on a CdS/WSe2 heterojunction, the structure of the photoelectric transistor is a source electrode/CdS/WSe2 heterojunction/drain electrode and a gate electrode, the CdS/WSe2 heterojunction is prepared through a polyvinyl alcohol method transfer method, a CdS nanosheet is in full contact with a WSe2 nanosheet, and then the source electrode and the drain electrode are manufactured on the edges of the CdS nanosheet and the WSe2 nanosheet outside the CdS/WSe2 heterojunction; and the gate electrode is a silicon wafer substrate. The photoelectric transistor realizes effective carrier gate voltage regulation and control. Under the grid voltage condition of-40-40V and under illumination of a visible wave band of 405nm, excellent light responsivity, relatively ...

Photovoltaic support structure

A photovoltaic support structure disclosed by the present invention comprises a vertical beam and a photovoltaic frame, the photovoltaic frame is fixedly arranged along the length direction of the vertical beam, the photovoltaic frame is provided with a clamping part used for clamping a photovoltaic panel, the vertical beam is formed by bending a steel plate, the vertical beam is provided with an inner cavity, a bearing part used for bearing the photovoltaic frame is bent on the inner cavity, and the bearing part is provided with a clamping part used for clamping the photovoltaic panel. Supporting edges are bent on the two sides of the inner cavity, and an open part convenient to operate is arranged on the inner cavity. The cost is reduced, and the installation is convenient.

Data access permission control method and device and electronic equipment

The invention discloses a data access permission control method and device and electronic equipment, and the method comprises the steps: analyzing access data and to-be-verified information in a first access request sent by a data requester, receiving second preset verification information sent by a data owner when the to-be-verified information is consistent with first preset verification information, and sending the second preset verification information to the data owner; and detecting whether the to-be-verified information is consistent with second preset verification information, and when the to-be-verified information is consistent with the second preset verification information, sending the first reply information to the data requester. According to the method, the to-be-verified information of the data requester is verified based on the first preset verification information and the second preset verification information, it is ensured that the verified data requester has the access ...

Needle warming moxibustion ash receiving tool

The utility model discloses a needle warming moxibustion ash receiving tool, which belongs to the technical field of needle warming moxibustion auxiliary tools and comprises a first shielding strip, a plurality of second shielding strips and a third shielding strip. N first square grooves are formed in one side of the first shielding strip at intervals; n first square convex blocks are arranged on one side of the second shielding strip at intervals, and N second square grooves are formed in the opposite sides of the second shielding strip at intervals; n second square convex blocks are arranged on one side of the third shielding strip; the sizes of the first square groove, the first square convex block, the second square groove and the second square convex block are equal; the distance between every two adjacent first square grooves, the distance between every two adjacent first square protruding blocks, the distance between every two adjacent second square grooves and the distance between ...

Pyramid-shaped steel pipe flange welding workstation for power transmission tower

The invention discloses a pyramid-shaped steel pipe flange welding workstation for a power transmission tower, which comprises a closed-loop rotary clamping seat for clamping and supporting the front end of a pyramid-shaped steel pipe and driving the pyramid-shaped steel pipe to rotate by 360 degrees; the floating supporting device is used for supporting the rear end of the pyramid-shaped steel pipe and can adjust and support the height of the rear end of the pyramid-shaped steel pipe, so that the axis of the pyramid-shaped steel pipe is perpendicular to the rotating plane of the pyramid-shaped steel pipe; the at least one welding mechanical arm A is used for welding an outer gap between the pyramid-shaped steel pipe and the flange and the triangular rib plate; the welding mechanical arms B are located in front of the closed-loop rotary clamping base and behind the floating supporting device correspondingly and used for welding the inner gap between the pyramid-shaped steel pipe and the ...

Photovoltaic frame and support integrated photovoltaic support system

The invention discloses a photovoltaic frame and support integrated photovoltaic support system which comprises a supporting stand column, a cross beam, a vertical frame and a transverse frame, the vertical frame and the transverse frame are used for surrounding the edge of a photovoltaic panel, a connecting piece is fixedly installed on the cross beam, the vertical frame is fixedly installed on the connecting piece, and the vertical frame and the transverse frame are made of steel profiles. The vertical frame and the transverse frame are provided with accommodating grooves used for clamping the photovoltaic panel, and the vertical frame is provided with a connecting plate used for being fixedly connected with the connecting piece. The photovoltaic support system has the advantages of being convenient to install, low in cost and stable in structure.

For cascade in-phase power supply converter device structure

... 本发明涉及种用于级联式同相供电变流器的结构装置，所述装置包括可供串联和并联的功率单元、若干列功率单元单柜连接而成的柜体及容纳柜体的集装箱；本发明的整体结构设计以及针对功率单元的连接在结构装置内优化、高效的串、并联设计以及电气结构对称设计形成背靠背的功率单元，使得高压同相供电系统的功能在结构实现上成为可能，实现了取消电分相、提高列车安全性和舒适性，减少无功电流和谐波电流对系统危害的技术效果。 ...

Antenna and base station antenna feeder system

The invention provides an antenna and a base station antenna feeder system. The antenna comprises a first phase shifter, and the first phase shifter comprises a cavity and a phase shifting circuit. The phase shift circuit is arranged in the cavity. The cavity is connected with an installation structure which is used for being connected with a holding pole. In the scheme, the cavity of the first phase shifter is used as a frame of the antenna, and the cavity of the first phase shifter is mounted to the holding pole by using the mounting structure, so that the cavity can support the whole antenna. In the scheme, the cavity of the first phase shifter serves as a stress framework of the antenna, the cavity is used for bearing the weight of the antenna, the stability of the antenna mounting structure is improved, the antenna is not prone to damage, the service life of the antenna is prolonged, and the antenna performance of the base station is guaranteed.

Photovoltaic support assembly

The photovoltaic support assembly comprises a vertical beam and a photovoltaic frame, a notch is formed in the upper portion of the vertical beam, a mounting edge is arranged on the vertical beam, a connecting edge is arranged on the vertical beam, a clamping part used for clamping a photovoltaic panel is arranged on the photovoltaic frame, and the clamping part is embedded and inserted into the notch. The photovoltaic support assembly is suitable for various types of photovoltaic support systems, and has the advantages of high structural strength and low cost.

Ciclosporin suspension eye drops and preparation method thereof

The invention discloses cyclosporine suspension eye drops which comprise the following components in percentage by weight: 0.05%-0.1% of cyclosporine, 0.05%-1.4% of a biological adhesion material, 0.75%-3% of propylene glycol, buffer salt for adjusting the pH value to 6.0-8.0 and purified water added to 100%, wherein the ciclosporin is a ciclosporin nanocrystal aqueous dispersion. The detention time of the medicine in eyes can be prolonged, and the distribution of the medicine in eye tissues is increased, so that the medicine effect is improved.

Preparation method of cyclohexanone cyanohydrin

The invention relates to the technical field of organic chemical synthesis, and discloses a cyclohexanone cyanohydrin preparation method, which comprises: 1, a raw material premixing stage: fully premixing raw materials such as hydrocyanic acid and cyclohexanone to form a mixed solution; 2, a reaction stage: mixing the mixed solution and a catalyst, and heating for reaction to obtain a reaction solution; and 3, impurity removal: adjusting the pH value of the reaction solution obtained in the step 2, and removing the unreacted raw material hydrocyanic acid through flash evaporation to obtain the product cyclohexanone cyanohydrin. According to the scheme, in the production process of the cyclohexanone cyanohydrin, the cyclohexanone cyanohydrin product can be obtained only by uniformly mixing the raw materials in advance and removing the unreacted raw materials in the reaction solution or the raw materials generated by the reverse reaction through flash evaporation after the catalytic reaction ...

High-efficiency drying device for feed processing and use method of high-efficiency drying device

The invention discloses a high-efficiency drying device for feed processing. The high-efficiency drying device comprises a shell, a heating assembly and a stirring mechanism. The upper and lower ends of the shell are respectively connected with a charging pipe and a discharging pipe; the heating assembly is arranged in the shell and used for drying feed in the shell. The stirring mechanism is mounted on the shell and comprises a motor, a rotating shaft is connected to the motor, a stir-frying mechanism and a blowing mechanism are connected to the rotating shaft, and a control box is connected to the shell and used for controlling operation of the heating wire, the control valve, the motor and the air suction pump; a partition plate and a rebound plate are arranged in the shell and used for forming a to-be-discharged cavity. Through the arrangement of corresponding mechanisms, the feed drying efficiency can be greatly improved, the feed drying effect is improved, the situation that the feed ...

Welding fume collecting and treating system

The invention discloses a welding fume collection and treatment system which comprises a fume adsorption mechanism, a fume conveying pipeline and a filter cartridge dust removal filter which are sequentially arranged in the flow direction, and further comprises a suction pump arranged in the fume conveying pipeline. The system is characterized in that the suction pump comprises a main suction pump and an auxiliary suction pump, and the smoke dust conveying pipeline comprises a main pipe and a plurality of bypass branch pipes communicated with the main pipe in a sealed mode; the main suction pump is mounted on the main pipe; the bypass branch pipe is used for being arranged at a single welding station and provided with the auxiliary suction pump and the electric control opening and closing valve. The welding fume suction device can help to improve the welding fume suction efficiency.

Lightweight frame for solar photovoltaic panel

The invention discloses a lightweight frame for a solar photovoltaic panel, which comprises a plurality of frames and connecting corner fittings, each frame is provided with a wrapping groove for wrapping the edge of the photovoltaic panel, the frames are enclosed to form the frame, the wrapping grooves after framing form continuous wrapping paths corresponding to the edges of the photovoltaic panel, and the connecting corner fittings are connected with the wrapping grooves. The connecting corner pieces cover the outer portions of the splicing corners of the adjacent frames and are connected with the two adjacent frames in a buckled mode. The invention has the advantages of meeting the framing requirement, reducing the cost, being neat and attractive in appearance and improving the overall strength.

Cyclosporine eye drops and preparation method thereof

The invention discloses cyclosporine eye drops, which are prepared from the following raw material components in percentage by mass: 0.05 to 0.1 percent of cyclosporine; 1-2.5% of an oil phase; 0.8 to 2.0 percent of polysorbate 80; 2-3% of glycerol; 0.05 to 1.4 percent of a biological adhesion material; and sodium hydroxide and purified water. According to the cyclosporine sustained-release preparation, cyclosporine can be stably released, the retention time of the medicine in eyes is prolonged, the distribution of the medicine in eye tissues is increased, and the medicine effect is improved.

5G base station outdoor integrated power box

The utility model discloses a 5G base station outdoor integrated power supply box, relates to the technical field of integrated power supply boxes, and aims to solve the problems that the size of a box body is still too large, and 150 A capacity box holding pole type installation is difficult. If the switch power supply or the main input switch in the box cannot be checked in time after having a fault, the fault can only be found through periodic inspection of related inspection personnel, so that the box cannot be overhauled in time; in order to save optical fiber resources, an ODB cabin user adopts a one-to-many fiber distribution mode, but the original direct fiber distribution mode still needs to be reserved. Wherein a box body is arranged above the floor base, the box body is connected with the floor base through screws, an insulating pad is arranged in the box body, a partition plate is arranged in the box body, an ODB optical fiber distribution unit is arranged below the partition ...

Steel profile applied to solar photovoltaic system

The invention discloses a steel profile applied to a solar photovoltaic system, the steel profile comprises a stress side, a top side and a bottom side, the wall thickness of the stress side, the wall thickness of the top side and the wall thickness of the bottom side are T, the outer circle radius of the included angle between the stress side and the top side and/or the outer circle radius of the included angle between the stress side and the bottom side are/is R, and T-R is larger than or equal to 0 mm. The steel profile applied to the solar photovoltaic system has better supporting reliability and is more beneficial to cost control of a supporting component of the solar photovoltaic system.

Antibacterial antifouling foamed polypropylene material and preparation method thereof

The invention discloses an antibacterial and antifouling foamed polypropylene material and a preparation method thereof, and the foamed polypropylene material is prepared from the following raw materials in parts by weight: 45-65 parts of co-polypropylene, 10-30 parts of high melt strength polypropylene, 10-25 parts of maleic anhydride modified polypropylene, 2-4 parts of a light stabilizer, 0.5-1.3 parts of an antioxidant, 0.5-1.2 parts of an auxiliary foaming agent and 5-10 parts of an anti-adsorption complexing agent, wherein the anti-adsorption complexing agent is nanogel loaded with an anti-biological adsorbent. According to the invention, the anti-bio-adsorbent is loaded on the nanogel to realize controlled release of the anti-bio-adsorbent, so that marine organisms are difficult to adsorb and grow on the foamed polypropylene material, the biological anti-fouling efficiency of the foamed polypropylene material can be improved, and the service life of the foamed polypropylene material ...

Human-computer interaction display method based on virtual-real integrated display technology

The invention discloses a human-computer interaction display method based on a virtual-real integrated display technology. The method comprises the following steps: inputting a real installation signal into an unmanned aerial vehicle; configuring a real installation signal on the unmanned aerial vehicle; starting the deduction platform; editing virtual equipment and generating a digital prototype; a real installation signal on the unmanned aerial vehicle is accessed to the deduction platform, and the real installation signal and the generated digital prototype form a simulation formation; forming a virtual-real combination formation meeting the training requirements of the intelligent agent; according to an intelligent agent training purpose, selecting an intelligent agent evaluation system, and associating a bottom quantitative index to a platform deduction specific data type; deduction test parameters are set; and starting deduction, completing agent training deduction by the virtual-real ...

Semiconductor structure and preparation method thereof

The invention discloses a semiconductor structure and a preparation method thereof, and belongs to the technical field of semiconductors. The preparation method of the semiconductor structure comprises the steps of providing a substrate; forming a trench in the substrate; in an environment with a pressure of 500-800 torr, a first thermal oxidation reaction is carried out to form a first oxide layer on the bottom and the side wall of the trench, and the thickness of the first oxide layer is gradually reduced along a direction close to the bottom. The thickness of the oxide layer obtained by the method is gradually reduced from the edge of the groove to the bottom of the groove, so that the oxide layer in the groove covers in a stepped manner. Because the oxide layers with different thicknesses are formed on the side wall and the bottom of the groove, the thicker side wall can reduce the electric leakage of the grid electrode, and the thinner bottom can enhance the control capability of the ...

Chain lubricating device

The invention discloses a chain lubricating device, and relates to the technical field of chain lubricating devices. Comprising a storage cavity and a push rod, the storage cavity is used for storing lubricating oil, the push rod is inserted into the storage cavity, the lower end of the push rod extends to the chain, a first oil outlet and a second oil outlet are further formed in the storage cavity, and the first oil outlet and the second oil outlet are oppositely formed in the two sides of the push rod; when the chain moves, the push rod is pushed to move upwards, and then the push rod extrudes the lubricating oil in the storage cavity, so that the lubricating oil flows out from the first oil outlet and the second oil outlet and drips on the two side edges of the chain. According to the chain lubricating device, lubricating oil can be accurately dripped to the abrasion position of the chain, the lubricating effect of mechanical lubricating operation is improved, and the lubricating oil ...

Winch hoist control system

The invention discloses a winch hoist control system which comprises a power driving assembly, a control assembly and a control assembly. The power driving assembly comprises a driving motor and a rotating part connected with the driving motor. The stroke monitoring assembly comprises a monitoring piece connected with the power driving assembly and a protection piece arranged outside the monitoring piece. The storage cleaning assembly comprises a supporting piece arranged on one side of the rotating piece and four sets of storage cleaning pieces connected with the supporting piece in a sliding mode. The winch hoist has the beneficial effects that an existing mechanical structure is improved and a new mechanical structure is added, so that the linkage effect of the structure is increased during operation of the existing mechanical structure, and a series of control effects on the winch hoist are achieved at the same time; the stroke monitoring function for gate opening and closing and the ...

Fixed photovoltaic support system

The invention discloses a fixed photovoltaic support system, which comprises a supporting upright post, a cross beam and a vertical beam, a hoop is fixedly arranged on the supporting upright post, the cross beam is fixed in the hoop, the vertical beam is erected on the cross beam at intervals and is fixedly connected with the cross beam through a corner connector, a rotation stopping part is arranged on the cross beam, and the cross beam is arranged to be a quasi-circular pipe with a mounting plane. The invention has the advantages of convenient installation and strong load bearing capacity.

Application program window watermark adding method and device based on Linux system

The invention provides an application window watermark adding method and device based on a Linux system, and the method comprises the steps: creating a watermark window which is consistent with a window in position and size on the window corresponding to a target process, and keeping the watermark window on the window corresponding to the target process all the time; according to the method, the window watermark adding operation and the target process can be unhooked to the maximum extent, the coupling degree is reduced, the running logic of an original program is not interfered, and uncertain factors are not introduced, so that the complete running performance of the program can be ensured, and the protection of application program information and the guarantee of the running safety of the application program are both considered. Besides, window watermark adding modes are all established on X11 of Linux, window information is acquired based on an X11 function, and the window is controlled ...

Online laser pipe cutting machine for circular pipe

The invention relates to the technical field of pipe cutting machines, in particular to an on-line laser pipe cutting machine for a round pipe, and solves the problems that in the prior art, a forced pipe cutting mechanism cannot correspondingly adapt in real time along with the size change of the pipe, so that the cutting quality and precision do not reach the standard, and the production efficiency is low. The device comprises a rotating mechanism which is connected to the outer side of a circular pipe in a sleeving mode and is coaxial with the circular pipe, one side of the rotating mechanism is connected with an adjusting mechanism, the other side of the rotating mechanism is connected with a moving mechanism, the end of the adjusting mechanism is connected with a laser cutting head, and the adjusting mechanism controls the distance between the laser cutting head and the circular pipe. The rotating mechanism can drive the laser cutting head to rotate around the axis of the circular ...

Method for monitoring and eliminating DI loop suspension AC voltage

The invention discloses a method for monitoring and eliminating DI loop suspension AC voltage. The method comprises the following steps: an upper computer directly monitors an auxiliary device PLC; the LCU monitors the auxiliary equipment PLC through a network; separating the alternating-current and direct-current wires which are bundled together in the wire slot, bundling the alternating-current and direct-current wires into two bundles and separating the two bundles by a certain distance; and a capacitor is connected in parallel between the DI terminal of the DI module and the ground for the mutually mixed and incapable of being eliminated in the wire slot. According to the method for monitoring and eliminating the suspension alternating voltage of the DI loop, whether the alarm signal is output or not is determined by setting the judgment rule, the problems of time consumption and low accuracy caused by manual judgment are avoided, and the suspension alternating voltage is effectively ...

Picard travelling wagon car

... 本实用新型属于房车技术领域，具体涉及一种皮卡旅居房车，包括门、卧室、厨房、卫生间和客厅，门设于车厢的后方，所述车厢按照距离驾驶区的远近分为前部、中部和后部，卧室位于所述车厢的前部，客厅位于所述车厢的中部，厨房和卫生间分别设于所述车厢后部的两侧。本实用新型的皮卡旅居房车，带有旅居设备和大储物空间，提高旅行舒适度。 ...

Intelligent building network control system and method based on Internet of Things

The invention relates to the technical field of building network control. The intelligent building network control system comprises a building automatic control subsystem, a data transmission module, a data analysis module and a property management subsystem, the building automatic control subsystem is used for monitoring power equipment in a building on line, and for the real-time state of the power equipment obtained through on-line monitoring, according to the real-time state of the power equipment, alarm processing is carried out when the power equipment breaks down; the data transmission module is used for transmitting information after power equipment in a building breaks down; the data analysis module is used for analyzing faults of power equipment in a building and the maintenance progress of employees; and the property management subsystem is used for managing maintenance employees and granting the authority of modifying the database to the employees. According to the method, the ...

Modularized floating type foundation and fan

The embodiment of the invention provides a modular floating type foundation and a fan. The modularized floating type foundation is connected to the side face of the bottom of a tower of a draught fan. The modularized floating type foundation comprises a plurality of standard floating body modules and a plurality of connecting structural members. The standard floating body modules are sequentially connected to define a polygon. Every two adjacent standard floating body modules at each corner of the polygon are connected through a connecting structural part, and the tower is connected to the connecting structural part at one corner of the polygon. The manufacturing threshold can be lowered, and the wharf occupation time is shortened.

Eriocheir sinensis strain identification method based on deep learning

The invention relates to the technical field of computer vision, in particular to a deep learning-based Eriocheir sinensis strain identification method, which comprises the following steps of: generating a training data set by using river crab pictures of a plurality of strains, training a backbone network containing CSPNet, and performing feature fusion on extracted feature vectors in different scales, so as to identify the Eriocheir sinensis strain. The method comprises the following steps: marking data of a river crab strain, performing prediction operation through a prediction layer, comparing a prediction result with the marked data, calculating a loss value according to a loss function, performing repeated iteration, back propagation and optimizing the loss value to obtain a trained model, and finally predicting the river crab strain by using the trained model, thereby realizing the detection automation of the river crab strain, and further improving the detection accuracy of the ...

Pyrolysis gas collection and online analysis system

The invention provides a pyrolysis gas collection and on-line analysis system. The pyrolysis gas collection and on-line analysis system comprises a heating decomposition mechanism, a pretreatment mechanism and an analysis instrument which are communicated in sequence, the thermal decomposition mechanism is used for heating the insulating material and generating to-be-analyzed gas; a gas inlet of the pretreatment mechanism is communicated with a gas outlet of the thermal decomposition mechanism, and the pretreatment mechanism is used for removing tar substances in gas generated by the thermal decomposition mechanism; the analysis instrument is communicated with the gas outlet of the pretreatment mechanism and is used for analyzing the gas flowing through the pretreatment mechanism in real time; and a pipeline for communicating the thermal decomposition mechanism, the pretreatment mechanism and the analysis instrument is an inerting pipeline. The thermal decomposition mechanism, the pretreatment ...

Method for welding large-diameter pyramid-shaped steel pipe flange by using steel pipe welding station

The invention discloses a method for welding a large-diameter pyramid-shaped steel pipe flange through a steel pipe welding station. The method comprises the steps that S1, a to-be-welded steel pipe body and a flange are subjected to primary welding; s2, the to-be-welded steel pipe body obtained after the first step is completed is hoisted to a steel pipe welding station, the to-be-welded steel pipe body is clamped through a closed-loop type rotary clamping base, a floating supporting device supports the rear portion of the to-be-welded steel pipe body, and the axis of the to-be-welded steel pipe body is made to be perpendicular to the rotating face when the closed-loop type rotary clamping base drives the to-be-welded steel pipe body to rotate; and S3, the closed-loop type rotary clamping base is started, the to-be-welded steel pipe body continuously rotates in one direction, and meanwhile welding is completed through the welding mechanical arm. In the welding process, the stability of ...

Roof photovoltaic system

A roof photovoltaic system disclosed by the present invention comprises a photovoltaic support, a photovoltaic panel, a long frame and a short frame, the long frame and the short frame surround the edge of the photovoltaic panel, the photovoltaic support is fixedly installed on a roof, and the photovoltaic support is provided with a notch, a stress plate and a connecting plate. The long frame and the short frame are provided with a first clamping part and a second clamping part which are used for clamping a photovoltaic panel, the long frame is fixedly installed on the photovoltaic support and forms lap joint with the upper portion of the photovoltaic support, and the first clamping part is embedded and inserted into the notch. The waterproof structure has the advantages of low cost and good waterproof effect.

Multi-sensor track fusion filtering method and device, electronic equipment and storage medium

The embodiment of the invention discloses a multi-sensor track fusion filtering method and device, electronic equipment and a storage medium. The method comprises the following steps: determining at least two fusion tracks of a to-be-detected target; determining the number of sensors associated with the to-be-detected target and at least two existence probabilities of the to-be-detected target; fusing the fused track according to the at least two existence probabilities of the to-be-detected target, and determining the fusion existence probability of the fused track; and screening at least two fusion tracks of the to-be-detected target according to the number of the sensors associated with the to-be-detected target and the fusion existence probability of the fusion tracks, and determining a target track of the to-be-detected target. By adopting the scheme, the to-be-detected targets acquired by different sensors are associated and fused; and for all the tracks obtained by fusion of the ...

High and cold region tunnel construction quality detection equipment

The invention belongs to the technical field of tunnel detection, and particularly relates to high and cold area tunnel construction quality detection equipment which comprises a vehicle body. A display panel is mounted on one side of the vehicle body; the top of the vehicle body is slidably connected with a mounting column; a hydraulic cylinder is mounted in the vehicle body, and the output end of the hydraulic cylinder is fixedly connected with the bottom of the mounting column; one side of the mounting column is fixedly connected with a mounting block through a telescopic assembly; a thickness measuring probe is arranged on the side, away from the telescopic assembly, of the installation block. When the thickness of the tunnel lining is detected, the vehicle body is moved to the position near the surface of the tunnel lining, the hydraulic cylinder controls the installation column to slide on the top of the vehicle body so that the installation block can be adjusted to the proper height ...

Collimating and centering method and device of multi-core optical fiber and welding method and system of multi-core optical fiber

The invention belongs to the technical field of optical fiber cable production and testing, and discloses a collimation and centering method and device and a welding method and system of a multi-core optical fiber. The method comprises the steps of firstly obtaining side images of the multi-core optical fibers, then obtaining envelope line information and a side projection feature point diagram on the basis, controlling the two multi-core optical fibers to rotate to respective maximum feature points based on the side projection feature point diagram, and finally adjusting the spatial positions of the multi-core optical fibers based on the envelope line information. And collimation and centering of the multi-core optical fiber are completed. And after collimation and centering, carrying out a discharge welding process on the two multi-core optical fibers to complete automatic welding of the multi-core optical fibers. According to the invention, the collimation, centering and welding efficiency ...

Intelligent simulation circuit breaker and simulation method thereof

The invention relates to the technical field of secondary debugging application of a power system, in particular to an intelligent simulation circuit breaker and a simulation method thereof, and the circuit breaker comprises a control panel, and the input end of the control panel is externally connected with an external input module, an internal input module and a power module; the output end of the control panel is externally connected with a driving circuit, a resistance switching circuit and a signal indication module; the control end of the control panel is further connected with a time control module. According to the invention, normal opening and closing processes of different types of real circuit breakers can be simulated, opening and closing loop preparation and opening and closing processes after preparation can be truly reproduced, and various faults of the real circuit breakers can be perfectly simulated. The faults include low-air-pressure locking reclosing, low-air-pressure ...

Flame-retardant compound and preparation method thereof

The invention discloses a flame-retardant compound and a preparation method thereof, and the flame-retardant compound comprises a matrix which is a compound of polylactic acid and poly (butylene adipate-co-terephthalate); a flame-retardant gas gel microsphere; a phosphorus-containing epoxy; an antioxidant; a nucleating agent; a coupling agent; the flame-retardant epoxy resin composite material is prepared from the following components in parts by weight: 85 to 97 parts of a matrix, 1 to 5 parts of flame-retardant aerogel microspheres, 0.5 to 2 parts of phosphorus-containing epoxy, 0.01 to 3 parts of an antioxidant, 0.1 to 2 parts of a nucleating agent and 1 to 3 parts of a coupling agent. The flame-retardant compound disclosed by the invention has the characteristics of being green, environment-friendly, efficient in flame retardance, excellent in comprehensive performance and the like, and can be applied to the field with high flame-retardant performance requirements.

Method for inducing phalaenopsis amabilis to generate multiple stems

The invention is applicable to the technical field of flower cultivation, and provides a method for inducing phalaenopsis to generate multiple stalks, which comprises the following steps: taking exogenous hormones GA3, 6-BA and KT-30 with different concentrations as test agents, and spraying leaves of three miniature phalaenopsis varieties; purified water is used as a contrast; selecting five pots for each variety, and repeating for three times; the exogenous hormone is sprayed once every 7 days, and spraying is continuously carried out for 4 times; and observing and counting the double-stem rate, the pedicel length, the malformation rate and the like of the three miniature phalaenopsis varieties treated by different exogenous hormones, and screening out the optimal hormone concentration. According to the method disclosed by the invention, the optimal hormone concentration for double-stalk generation and normal growth of the 'Sweet Ginger' variety, the 'Fengdesman' variety and the 'Green ...

Eriocheir sinensis tracing method based on deep learning

The invention relates to the technical field of computer vision, in particular to an Eriocheir sinensis traceability method based on deep learning, which comprises the following steps: collecting river crab photos, performing data enhancement to form a data set, putting the data set into a trunk network for feature extraction, and obtaining an available model through calculation of a triple loss function and back propagation optimization. The model is used for coding all the river crab pictures to obtain a database in which crab shell characteristics are stored, finally, the river crab pictures needing to be recognized are selected and put into the model for coding, Euclidean distances are compared, and crab shell matching data are obtained, so that common consumers are helped to quickly distinguish the production places of the river crabs, and the source tracing of the river crab varieties is completed. And consumers and brand rights and interests are protected.