Anti-ground wire interference isolation device for digital electric vibration test system

The invention discloses an anti-ground wire interference isolation device for a digital electric vibration test system, and the device comprises a pedestal, the two sides of the top of the pedestal are provided with third wedge blocks, one end of the front surface of the pedestal is uniformly provided with four groups of placing grooves, and the bottoms of the interiors of the placing grooves are provided with rubber pads. Transmission rods are slidably arranged at one ends of the two sides of the containing groove. The isolation mechanism is arranged on the outer side of the vibration device, the vibration device which is working can be isolated, noise transmission generated during working of the vibration device cover can be reduced, generated noise can be transmitted to the interior of the noise reduction groove in advance and continuously rebounded and transmitted in the noise reduction groove, and the noise reduction effect is improved. The sound insulation board and the polyester ...

悬挂式农业区域巡检机器人外壳

Bonding method and bonding structure

The embodiment of the invention discloses a bonding method and a bonding structure. The bonding method comprises the following steps: providing a first substrate and a second substrate; depositing a first bonding layer on the first substrate, and depositing a second bonding layer on the second substrate; and activating the first bonding layer in a laser scanning mode, and bonding the first substrate and the second substrate through the first bonding layer and the second bonding layer. According to the method, the interface outside the bonding area does not need to be activated while the interface of the bonding area is activated, so that the bonding efficiency is greatly improved.

Combined foundation pit support method for dock entrance foundation pit

The invention belongs to the field of foundation pit support, and particularly relates to a combined foundation pit support method for a dock entrance foundation pit, which comprises the following steps of: determining geometrical characteristics of the foundation pit; according to the geological environment and engineering of the foundation pit, a supporting scheme is determined; a waterproof curtain formed by matching steel sheet piles with high-pressure jet grouting piles is selected as a retaining structure on the river-facing side of the foundation pit dock entrance, and waterproof curtains formed by matching cast-in-situ bored piles with SMW construction method piles are selected as retaining structures on other sides; five horizontal supports are selected as a supporting system; local reinforcement is conducted on the side enclosure structure near the river, and a permanent waterproof curtain is arranged below a bottom plate of the dock entrance area; and after dock entrance construction ...

Privacy protection data generation method based on generative adversarial network

The invention discloses a privacy protection data generation method based on a generative adversarial network, which relates to the field of data generation and comprises the following steps of: constructing a front auto-encoder; constructing a generative adversarial network model; an auto-encoder is applied to data generation of the generative adversarial network model. According to the method, a pre-trained auto-encoder is used for mapping a given data set to a low-dimensional continuous space, and adversarial learning is carried out through a generator in the low-dimensional space and a discriminator in an original data space, so that a generative model with simulated real data is obtained. The method can effectively solve the problem that the training data set is deficient due to the fact that the training data is often limited when being obtained under the privacy protection policy.

HOUSEHOLD APPLIANCE AND VOICE RECOGNITION METHOD, CONTROL METHOD AND CONTROL DEVICE THEREOF

Disclosed by the present application are a household appliance and a voice recognition method , a control method and a control device thereof. The voice recognition method comprises: acquiring voice information input by a user; acquiring the current operable instruction set of the household appliance according to the business logic of the household appliance; and recognizing the voice information according to the current operable instruction set. The household appliance control method comprises: receiving voice information and extracting key words contained therein; combining the key words to obtain a key words combination, determining the key words combination stored in the predetermined semantic database, and controlling the household appliance to perform corresponding operation response. The household appliance control method further comprises: receiving voice data and extracting feature words contained therein; matching the feature words to a control parameter in the predetermined voice ...

STATE EVALUATION METHOD FOR SECONDARY EQUIPMENT OF SUBSTATION, SYSTEM, AND EQUIPMENT

A state evaluation method for secondary equipment of a substation, pertaining to the technical field of secondary substation equipment evaluations. The method comprises: establishing a cloud technology platform (12) for a secondary equipment state, wherein the cloud technology platform (12) comprises a distributed file system module (121) and a state evaluation classifier (122) employing a MapReduce-based extreme learning machine, the distributed file system module (121) reads input data and stores the input data in the form of a secondary equipment state evaluation training set, and the secondary equipment state evaluation training set is applied to training the state evaluation classifier (122) employing the MapReduce-based extreme learning machine, so as to obtain a secondary equipment state evaluation model; and mapping real-time operation data by means of the secondary equipment state evaluation model to directly obtain an output result. The MapReduce-based extreme learning machine ...

Fuel cell performance degradation prediction method

The invention discloses a fuel cell performance degradation prediction method, which comprises the following steps of: acquiring voltage degradation data of a fuel cell, smoothing original data by adopting an SG filter, selecting auxiliary variables of the data by applying grey relational analysis, and establishing a performance degradation prediction model based on Bagging ensemble learning and a time convolutional network; performing initialization operation on the population of the manta ray foraging optimization algorithm by adopting half uniform initialization, and introducing an adaptive weight and a fitness-distance balance strategy in chain foraging position updating to obtain IMRFO; bagging ensemble learning is used to carry out fusion prediction on a plurality of weak learners, the prediction result of the first layer is used to train a TCN model, IMRFO is used to carry out parameter optimization on the TCN to obtain optimal parameters, and the optimal parameters and test data ...

Lithium battery health state estimation method

The invention discloses a lithium battery health state estimation method, which comprises the following steps: collecting voltage, current, temperature and capacity data of charging and discharging of a lithium ion battery monomer under different working conditions, rejecting abnormal values of original data by adopting an LOF method, dividing the data by using a K-fold crossing method, constructing a data set trained by a Stakering integrated model, and calculating the state of health of the lithium ion battery. AST-GRU and CNN-RVFL are used as base learners, a random forest RF is used as a meta learner, and a lithium battery health state estimation model is constructed; performing initialization operation on the population of the heap optimization algorithm by adopting singer chaotic mapping, and introducing an updating strategy based on dimension learning in position updating to obtain an IHBO; and optimizing hyper-parameters of the model by using IHBO to obtain optimal parameters, inputting ...

Excavator control method, system and equipment and readable storage medium

The embodiment of the invention discloses an excavator control method, system and equipment and a readable storage medium, and the method comprises the steps that target mining data in an equipment picture selected by a user through user equipment is recognized, and the target mining data comprises mining point pixel coordinates, unloading point pixel coordinates and target mining depth; transmitting the target excavation data to a controller on the excavator; the controller converts the pixel coordinates of the excavation point and the pixel coordinates of the unloading point into corresponding three-dimensional coordinates; and the controller controls the excavator under an instruction of user equipment according to the three-dimensional coordinates of the excavation point and the unloading point and the target excavation depth. Accurate excavation of the excavator is achieved, the operation difficulty of an excavator operator is lowered, and the working efficiency of the excavator is ...

Network slice determination method and system, network equipment and storage medium

The present disclosure relates to a network slice determination method and system, a network device and a storage medium, and relates to the technical field of communications, the method comprising: when a target application (APP) initiates an access request, a user equipment (UE), based on an application (APP) ID carried in the access request and a corresponding security identifier, determines a network slice based on the APP ID; determining a slice identifier S-NSSAI of a target network slice to which a target application APP should be accessed from a preset NSSP policy, the security identifier being generated by a policy control function PCF network element according to a slice signing request of an application server, and the preset NSSP policy being used for representing a corresponding relationship among the application APP ID, the security identifier and the slice identifier S-NSSAI; and the user equipment UE forwards the access traffic of the target application APP to a target user ...

Eye massage instrument and control method thereof

The invention relates to the technical field of eye health care equipment, in particular to an eye massage instrument and a control method thereof. The eye massage instrument comprises an instrument shell which comprises an outer shell and an inner shell matched with the outer shell, a containing cavity is formed in the outer shell, and a hole matched with a massage module is formed in the inner shell; the massage module is arranged in the containing cavity, faces the inner shell and comprises a PVC gel driving assembly and a massage part; the control module is arranged in the containing cavity, fixedly installed on the shell and connected with the massage module; the head fixing structure is connected to the instrument shell; and the power supply module supplies power to other components. The eye massage instrument has the advantages that the PVC gel driving assembly is designed to serve as a driver, the power buffering effect on the massage part is achieved while operation is easy, the ...

Unmanned automatic test station with three self-inertial measurement units

The invention relates to a three-self-inertial-unit unmanned automatic test station, and belongs to the field of unmanned automatic calibration test. Comprising an unmanned automatic test station U-shaped parking entrance, two automatic test tool limiting mechanisms, an unmanned automatic test station table top, four adjustable supporting legs, a connector visual positioning assembly, a connector unmanned docking mechanical arm, a cable, an automatic test station control host and a three-self-inertial-unit tester. A visual positioning camera is used for monitoring, and an automatic test station control host is used for controlling the movement of a connector unmanned docking mechanical arm, so that an aviation plug is aligned and inserted into a socket of an external tested product; according to the invention, manual operation is replaced to realize automatic positioning of product test postures, automatic test of connection and disconnection actions, automatic power-up and automatic performance ...

Multi-element spread spectrum calibration method and device based on lead code reconstruction

The invention discloses a multi-element spread spectrum frequency calibration method and device based on lead code reconstruction, and relates to a frequency calibration method and device for low signal-to-noise ratio demodulation, large frequency offset detection and multi-element spread spectrum in the field of scatter communication. A preamble reconstruction method is combined with a PMF-FFT algorithm to realize correction and tracking of large frequency offset in multi-element spread spectrum communication, spectrum analysis is performed on each diversity branch, then combination is performed to obtain a diversity effect, frequency correction can be realized under a low signal-to-noise ratio, and demodulation performance of scatter communication is ensured. The method is especially suitable for scatter communication of low signal-to-noise ratio, large frequency offset and fading channels, and reliable transmission of information in a multi-element spread spectrum demodulation mode is ...

Preparation process of explosion-proof tempered film

The invention relates to a preparation process of an explosion-proof tempered film, the preparation process of the explosion-proof tempered film needs to be completed through cooperation of a bottom plate, a cleaning mechanism and a gluing mechanism, and the upper end face of the bottom plate is sequentially provided with the cleaning mechanism and the gluing mechanism from left to right; the cleaning mechanism comprises a rectangular frame fixedly connected to the upper end face of the bottom plate, a plurality of cleaning grooves arranged in the rectangular frame in an embedded connection mode at equal intervals, an ejector rod jointly hinged between the piston and the elastic limiting piece and a communicating pipe communicating between the air bag and the air cylinder, and the communicating pipe is arranged in the vertical plate in an embedded connection mode. The tempered glass sheet touches the pressing plate when being put into the U-shaped clamp, and then the pressing plate is combined ...

Defect detection system, method, equipment and medium for water cooling wall of boiler

The embodiment of the invention discloses a defect detection system, method and equipment for a boiler water cooling wall and a medium. The system comprises an unmanned aerial vehicle, a detection management module and a wall-climbing robot, and the detection management module is in communication connection with the unmanned aerial vehicle and the wall-climbing robot; wherein the unmanned aerial vehicle is used for collecting parameter information of a to-be-detected area of the water cooling wall of the boiler after receiving a defect detection instruction sent by the detection management module; the detection management module is used for determining a starting point coordinate and an end point coordinate corresponding to the to-be-detected area according to the parameter information; and the wall-climbing robot is used for determining a target path of the wall-climbing robot according to the starting point coordinate and the terminal point coordinate, so that the wall-climbing robot ...

Under link board

... 本实用新型属于摩托车配件领域，尤其是涉及一种下连板，包括基件，所述基件的中部设置有贯穿基件上下端面的第一连接接口，基件的两端固定连接有上下两端均开口且设有径向开口的第二连接接口，两第二连接接口的内壁均设有凸台，凸台设置于两第二连接接口的上端面并向下延伸；所述基件的上端面对称设置有两个连接孔一；所述连接孔一为通孔设置；本实用新型的目的在于提供一种结构合理且便于减震器拆装的下连板。 ...

Gene cluster associated with mongolian sheep multi-spine character and breeding application thereof

The invention discloses a gene cluster associated with mongolian sheep multi-spine traits and breeding application thereof, and belongs to the technical field of animal breeding application, according to the scheme, after a blood DNA sample of mongolian sheep is collected, GWAS exploration and genome selection signal analysis can be carried out by utilizing the blood DNA sample to obtain that chr7: 89mb-chr7: 90.5 mb of a No.7 chromosome region of the mongolian sheep is selected, and the chr7: 89mb-chr7: 90.5 mb of the mongolian sheep is selected; gene clusters related to polyspinal traits, including ABCD4, VRTN, SYNDIG1L, LTBP2, PROX2 and the like, are selected in the range of 89Mb-90.5 Mb for selection of polyspinal sheep, selective breeding work of the polyspinal sheep can be accelerated, the process is in-vivo detection, the polyspinal Mongolian sheep can be bred without slaughtering the sheep, and whether the large-group Mongolian sheep is the polyspinal sheep or not is detected more ...

Application of X-linked apoptosis inhibiting protein in chronic kidney disease diagnosis

The invention relates to the technical field of disease diagnosis, in particular to application of X-linked apoptosis inhibitor protein in chronic kidney disease diagnosis.

Chemical plant dangerous area intrusion early warning method and system

The invention discloses a chemical plant dangerous area intrusion early warning method and system. The method is composed of four parts of video acquisition, target tracking, trajectory prediction and intrusion early warning. The video acquisition module uses a plurality of cameras to monitor a production area with potential safety hazards in a chemical plant area in real time, and transmits video images to the target tracking module; performing noise reduction and image transformation on the acquired video image, and identifying and tracking workers in the video by using an SSD model; the track prediction module combines the workers with the corresponding historical paths, predicts the walking route of each worker at the future moment by using an improved TCN model, synchronously optimizes the TCN model by combining with an improved AEO algorithm, and detects the trend of entering a dangerous area according to the future routes of the workers; and the intrusion early warning module performs ...

Image processing method, system, equipment and medium

The invention relates to an image processing method, system and device and a medium. The method comprises the steps that image data are collected and stored; analyzing whether a picture of the image data is clear or not by using deep learning; if the image data is clear, image picture enhancement does not need to be carried out, and the picture of the image data is directly output; if the image data is not clear, performing first image picture enhancement on the image data by using an image color enhancement algorithm to obtain corrected first image picture data; analyzing and judging whether the picture of the first image picture data is clear or not by using deep learning again; if the image is clear, image enhancement does not need to be carried out again, and the first image data is output; and if the image is not clear, carrying out second image picture enhancement by utilizing area light source enhanced illumination, and collecting and obtaining second image picture data after illumination ...

Gantry type double-line laser measuring head coordinate measuring device

The invention discloses a gantry type double-line laser measuring head coordinate measuring device which is used for carrying out precise, complete and rapid three-dimensional coordinate non-contact measurement on complex parts, and belongs to the field of precise measurement technology and part coordinate measurement. The two line laser measuring heads are used for synchronous measurement, the two line laser measuring heads form complementation to reduce the measurement blind area, the symmetrical portal frame units are adopted, the structural rigidity and stability are high, the whole machine has nine degrees of freedom and has good universality, the rotating shaft at the tail end of the device can widen the bus measurement range, and the measurement precision is improved. And the need of moving the measuring head is avoided. The problems that in existing coordinate measurement, efficiency is low, information is incomplete due to the fact that a measurement blind area exists, and a traditional ...

Resource matching management method and device, terminal equipment and storage medium

The invention discloses a resource matching management method and device, terminal equipment and a storage medium, and the method comprises the steps: obtaining the transfer resource information of each current transfer batch, determining the remaining transfer amount, available vehicles and available personnel of each current transfer batch according to the transfer resource information, obtaining a transfer application, and transmitting the transfer application to a server; when the remaining transfer amount of the transfer batch where the transfer application is located is larger than zero, transfer resource matching is conducted on the transfer application, and the transfer resource matching process comprises the steps that whether the remaining transfer amount of the transfer batch where the transfer application is located can meet the material transfer amount needed by the transfer application or not is judged, and if yes, the transfer application is started; and if yes, matching ...

Three-stage semi-supervised voiceprint recognition method based on adaptive expansion strategy

The invention relates to a three-stage semi-supervised voiceprint recognition method based on an adaptive expansion strategy. The three-stage semi-supervised voiceprint recognition method comprises the following steps: (1) proposing a semi-supervised learning method for constructing a three-stage framework; (2) proposing a three-stage semi-supervised voiceprint recognition method based on an adaptive expansion strategy; and (3) completing training and testing of the three-stage semi-supervised voiceprint recognition method based on the adaptive expansion strategy. According to the three-stage semi-supervised voiceprint recognition method based on the adaptive expansion strategy, the voiceprint recognition performance can be improved by fully utilizing the voiceprint data without labels when the voiceprint data with the labels are insufficient, the equal error rate is low, and certain effectiveness is shown.

Power semiconductor module residual life prediction method, terminal device and storage medium

The invention discloses a power semiconductor module residual life prediction method, terminal equipment and a storage medium. The method comprises the following steps: determining precursor parameters representing an aging process of a power semiconductor module in an accelerated aging test process; acquiring time-varying data of precursor parameters of the two groups of similar power semiconductor modules in the whole accelerated aging test; related processing is carried out on the data of the precursor parameters changing along with time, and needed training data and test data are deduced; selecting partial data of the data of the precursor parameters changing along with the time for training and the data of the precursor parameters changing along with the time for testing; training loss is generated by using the training data, a maximum average difference method is executed by using the selected partial data to complete transfer learning domain adaptation, and difference loss is generated ...

Bonding system and bonding method

The embodiment of the invention provides a bonding system and a bonding method. The bonding system comprises a bonding assembly, a wafer bearing table, a first alignment assembly, a second alignment assembly and a third alignment assembly, the first alignment assembly and the second alignment assembly are respectively used for determining a first position parameter of a first alignment mark on the bonding head and a second position parameter of a second alignment mark on a first tube core picked up by the bonding head when the bonding head is located at the first position; the third alignment assembly is used for determining a third position parameter of a third alignment mark on a second tube core on the wafer and determining a fourth position parameter of a first alignment mark on the bonding head when the bonding head is located at the second position; aligning the first tube core and the second tube core according to the first position parameter, the second position parameter, the third ...

Hazardous chemical product warehouse state monitoring method and early warning system

The invention discloses a dangerous chemical product warehouse state monitoring method and an early warning system. The early warning system comprises a dangerous case data collection part, a field data acquisition part, a multi-modal data fusion and monitoring analysis part and a front-end display early warning part. Establishing a dangerous chemical product dangerous case data set according to the dangerous case type of the dangerous chemical product warehouse; according to the environmental characteristics of a hazardous chemical product warehouse, a data acquisition node based on STM32 and a network camera is designed, and video, audio and sensor signal information required by identification is acquired; an improved multi-mode Autoformer model is established, and hyper-parameters of the multi-mode Autoformer are optimized through an improved MPA algorithm so as to improve the performance of the model; and finally, performing front-end display on a monitoring analysis result, and performing ...

Coordinate optimization method and system for transport vehicles in ship enterprise production area

The invention discloses a coordinate optimization method and system for a transport vehicle in a ship enterprise production area. The method comprises the following steps: acquiring real-time latitude and longitude information, direction information and an operation state of the transport vehicle; establishing a plane map rectangular coordinate system of the production operation area plane map, selecting a plurality of feature coordinate points, and forming a comparison sample set by the plurality of feature coordinate points; performing coordinate system conversion on the real-time latitude and longitude information to obtain corresponding plane coordinate points in an earth plane coordinate system, and forming a training sample set; establishing a coordinate conversion objective function of the comparison sample set and the training sample set; performing optimization solution on the coordinate conversion target function by adopting an ant lion optimization algorithm to obtain positioning ...

Novel annular inflatable boat type durian picking device

The invention discloses a novel annular flying type durian picking device, and belongs to the agricultural field of high-altitude automatic picking and durian picking. The whole device is composed of a buoyancy lifting unit, a flight position control unit, a cutting unit and a gas conveying and exhausting unit. The buoyancy lifting unit is a main body of the whole device and can be inflated and exhausted with light gas through the inflation and exhaust unit to achieve ascending and descending of the unit, and the feasibility of high-altitude operation is guaranteed. Wherein the flight position control unit can control the omni-directional movement of the buoyancy lifting unit, and the omni-directional movement is realized by four distributed brushless ducted fans. The cutting unit is composed of a mechanical arm and two positioning cameras, the mechanical arm has two degrees of freedom, the tail end of the mechanical arm is provided with a laser cutting opening, the cameras can conduct ...

Automatic marking system and method for flat head of spiral submerged arc welding pipe

The invention belongs to the technical field of spiral seam submerged arc welding pipe production, particularly relates to an automatic marking system and method for a flat head of a spiral submerged arc welding pipe, and aims at solving the problems that existing manual flat head operation equipment is high in labor intensity and low in working efficiency. The system comprises a flat-head trolley, a first sensor arranged in the advancing direction of the flat-head trolley, a second sensor arranged on the flat-head trolley, a marking sensor and flat-head equipment, the first sensor is configured to trigger the flat-end trolley to start to move forwards when detecting that the steel pipe is conveyed to the rotating device; when the second sensor is configured to detect the pipe end of the steel pipe, the flat-end trolley executes a deceleration action; the mark sensor is configured to stop the flat-end trolley at a specified flat-end position when a slate pencil mark arranged at the flat-end ...

Computer machine case that easily maintains

... 本实用新型公开一种易于维修的计算机机箱，包括机箱，机箱的一侧开设通孔，机箱的内侧顶部安装第一固定管，第一固定管内部安装第一导向杆，机箱的内侧底部安装第二固定管，第二固定管内部安装第二导向杆。本实用新型提供了一种无需将机箱的主板拆下就可以同时对机箱主板的原件和焊点同时维护的易于维修的计算机机箱。本实用新型的连接板上安装有主板，本实用新型的机箱盖通过第一固定管和第一导向杆的配合安装在机箱上，使机箱盖可以带动连接板从机箱内拉出，连接板上的透孔可以使主板的焊点面露出，方便机箱维修人员无需将主板拆下就可以同时对主板的原件和焊点进行维修。 ...

Method for detecting formaldehyde gas by using Ti3C2Tx/SnO2 nano gas-sensitive composite material sensor

The invention discloses a method for detecting formaldehyde gas by using a Ti3C2Tx/SnO2 nano gas-sensitive composite material sensor, and relates to a method for detecting formaldehyde gas by using a composite material sensor. According to the preparation method, a simple hydrothermal method is adopted, so that the SnO2 nanospheres are anchored to the Ti3C2TxMXene material with the two-dimensional lamellar structure, and the Ti3C2TxMXene material with the two-dimensional lamellar structure has excellent application performance. The synthesized Ti3C2Tx/SnO2 nano composite material with the sheet structure has high sensitivity, good selectivity and long-term stability to formaldehyde gas at room temperature, so that a high-performance formaldehyde gas sensor is developed. In addition, the device is simple in process, small in size and suitable for mass production, and has a wide application prospect in the aspect of formaldehyde detection.

Plough body front-mounted external source straw returning machine for shed

The invention provides an exogenous straw returning machine with a front plough body for a shed. The exogenous straw returning machine comprises the plough body, a plough body frame, a straw transferring guide pipe, a straw smashing device, a straw smashing device rack and walking wheels arranged below the straw smashing device rack. The straw smashing device comprises a transmission system, a feeding component, a conveying device, a traction mechanism and a chopping device. One end of the straw transfer conduit is mounted on the chopping device, and the other end is connected with the plough body; the rear portion of the plough body is connected with a plough body frame, and the plough body frame is arranged at the front end of a tractor. The straw returning machine is compact in structure, has high adaptability to straw compared with a traditional straw returning machine, is suitable for cutting off segmented straw, arranging the straw, rubbing and packaging the straw and conveying the ...

Attention mechanism multi-scale image conversion method based on style-independent discriminator

The invention relates to an attention mechanism multi-scale image conversion method based on a style-independent discriminator, and the method comprises the steps: constructing a multi-scale image conversion model of a baseline, introducing an attention mechanism into the multi-scale image conversion model of the baseline, and constructing a multi-scale image conversion model based on the attention mechanism; constructing an attention mechanism multi-scale image conversion model based on a style-independent discriminator in combination with the style-independent discriminator on the basis of the attention mechanism multi-scale image conversion model; and acquiring an underwater image, inputting the underwater image into the attention mechanism multi-scale image conversion model based on the style-independent discriminator, and outputting the converted underwater image to complete conversion of the underwater image. According to the attention mechanism multi-scale image conversion method ...

Aircraft assembly scheduling method, device, equipment and medium

The invention discloses an aircraft assembly scheduling method, device and equipment and a medium, and relates to the technical field of aircraft assembly. The method comprises the steps of obtaining the shortest processing time of each working package based on to-be-scheduled assembly sortie information of a target aircraft and the working package needing to be scheduled of the sortie; based on the shortest processing time of each working package, obtaining the longest processing time of the working packages in the shortest processing time of the plurality of working packages; obtaining a sorting index of the work package corresponding to the target aircraft sortie; and distributing the working package corresponding to the minimum sorting index of the working packages corresponding to the target aircraft sortie to a team with the lowest load and equipment with the lowest load to obtain an initial assembly scheduling scheme of the target aircraft sortie. By means of the technical scheme ...

Explosion propagation type spacer and using method thereof

The invention relates to an explosion propagation type spacer and a using method thereof, the explosion propagation type spacer comprises two trays and a charging pipe, each tray is provided with a through hole communicated with the upper surface and the lower surface of the tray, and the two ends of the charging pipe are communicated with the through holes of the two trays respectively. The using method of the explosion propagation type spacer comprises the following steps that S1, a proper tray and a proper charging pipe are selected according to the type of blasting explosives used for blasting, and the charging pipe is connected with the tray; s2, a spacer is placed, and charging is carried out; and S3, the blast hole is blocked and blasted. Compared with the prior art, the explosion propagation type spacer has the advantages that the two trays are communicated through the charging pipe, explosives can slide into the charging pipe when the explosives are added into the upper tray during ...

Valve oscillation fault detection method based on oscillation index

The invention discloses a valve oscillation fault detection method based on oscillation indexes, and relates to the technical field of fault detection. The method aims at solving the problem that an existing method cannot be suitable for fault early warning of the middle section of the steam turbine in a real peak regulation and frequency modulation operation scene. The method comprises the following steps: acquiring pre-stage and post-stage actual pressures and actual opening degrees of the steam turbine regulating valve, calculating an actual pressure ratio of the steam turbine regulating valve, constructing a valve opening characteristic diagram and further calculating data points, constructing parallelogram screening filing points of the data points, fitting the filing points into a valve opening characteristic curve, and further calculating a valve oscillation index. If the valve oscillation index exceeds the early warning range, judging that the turbine regulating valve has a jamming ...

Method, system and equipment for constructing application mirror image and storage medium

The invention discloses a method, a system and equipment for constructing an application mirror image and a storage medium, and belongs to the technical field of mirror image construction. The method comprises the steps of identifying changes of codes in a preset code warehouse; and if the change of the code in the code warehouse is identified to represent that the target application has a new function, sending a target application mirror image construction task corresponding to the changed code to a construction machine, so that the construction machine executes the following steps: obtaining a basic mirror image of the target application, which supports at least one kernel architecture, through a preset product warehouse, forming at least one construction file; and running the at least one construction file through the multi-platform mirror image construction plug-in to obtain a target application mirror image which at least supports one kernel architecture and corresponds to the newly-added ...

Tandem type hoisting method

The invention relates to the technical field of bridge construction, in particular to a tandem type hoisting method. The tandem type hoisting method comprises the following steps that 1, a plurality of pre-hoisting pieces are moved to a hoisting position from a prefabricating yard to be stacked; and 2, at least two stacked pre-hoisting pieces are connected to a hoisting mechanism in series through slings, and the slings on the lower pre-hoisting pieces penetrate through reserved grooves in the upper pre-hoisting pieces on the slings; and when the reserved grooves exist in the pre-hoisting pieces, the slings of the pre-hoisting pieces on the lower layer penetrate through the reserved grooves in the pre-hoisting pieces on the upper layer. The purpose of series hoisting of the multiple pre-hoisting pieces is achieved, and on the premise that the cost is controllable, operation is easy and the safety risk is small, hoisting of the pre-hoisting pieces can be rapidly and efficiently conducted ...

PROCESS FOR PRODUCING LOW-COST CLEAN STEEL

Disclosed in the present invention is a process for producing low-cost clean steel, comprising the steps of: primary desulfurization of molten iron: primary desulfurization in an iron runner for blast-furnace tapping and during the molten iron pouring process in a molten iron pouring room, and addition of a desulfurization sphere for molten iron during the blast-furnace tapping or molten iron pouring; dephosphorization and control of sulfur: dephosphorization and control of sulfur during the smelting of iron in a rotating furnace to ensure P ≤ 0.014%, and S ≤ 0.004% during tapping; dephosphorization by fast slagging: keeping C at the end point of the rotating furnace at 0.02-0.10%, and addition of a dephosphorization sphere through an alloy stream trough during the rotating furnace tapping, and at the same time stirring by means of argon blowing; purification of molten iron during RH refining: addition of a purification sphere at a vacuum degree of 66.7-500 Pa at the later period of the ...

CHRNA7 ligand screening and application

The invention discloses a method for screening a ligand of a nicotinic choline receptor A7 (CHRNA7) and application of atractylone and 3 beta-acetoxyatractylone as the ligand of the CHRNA7. The invention further discloses a method for screening the ligand of the nicotinic choline receptor A7 (CHRNA7).

Preparation method of ore sludge-based autoclaved aerated concrete block

The invention relates to a preparation method of a stone ore sludge-based autoclaved aerated concrete block. The aerated concrete block comprises the following components in parts by mass: 420-780 parts of stone ore sludge; 190 to 430 parts of a calcium raw material; 60 to 160 parts of a cementing material; 20 to 40 parts of desulfurized gypsum; 1-2 parts of a water reducing agent; 1-10 parts of a foaming agent; 2-8 parts of a foam stabilizer; and 400 to 600 parts of water. According to the invention, the sludge generated in the stone mining and processing process is used as a siliceous material instead of common raw materials such as fly ash and quartz sand, so that the stone sludge-based autoclaved aerated concrete block is prepared. By optimizing the curing process and adjusting the proportion of each key component, the stone ore sludge-based autoclaved aerated concrete block meeting the national standard is successfully prepared. The method is beneficial to solving the problem of environmental ...

Ship unloader grab bucket control method and device, ship unloader and storage medium

The invention provides a ship unloader grab bucket control method and device, a ship unloader and a storage medium. The method comprises the steps that in response to a reset instruction sent by an operation terminal, position information of a discharge hopper, position information of a trolley at the current moment, the length of a rope between a grab bucket and the trolley and deviation information of the grab bucket relative to the trolley are obtained; according to the position information of the trolley, the rope length and the deviation information, the position information of the grab bucket is determined; based on the position information of the discharge hopper and the position information of the grab bucket, a reset track enabling the grab bucket to move to the position above the discharge hopper is determined; and controlling the grab bucket to reset along the reset track. According to the invention, the one-key reset function of the ship unloader can be quickly and accurately ...

Track feature mining-based rear-end collision risk road section dynamic identification and control method

The invention discloses a rear-end collision risk road section dynamic identification and management and control method based on trajectory feature mining, and realizes rear-end collision risk road section dynamic identification and management and control based on vehicle real-time trajectory data analysis. Comprising the steps of vehicle rear-end collision risk analysis road segment semantic segmentation based on road structure features, weighted rear-end collision risk index statistics (fatigue index + flow index + urgent deceleration index) based on real-time track feature analysis, rear-end collision risk road segment classification dynamic identification and risk road segment classification management and control. The method breaks through the limitation that the traditional control method only focuses on the rear-end collision behavior of the vehicle, so that the control efficiency is low, and the dependence on vehicle sensing equipment is high, can remarkably improve the dynamic ...

POWER GRID ANTICIPATED FAULT SET PREDICTION METHOD AND APPARATUS, AND ELECTRONIC DEVICE AND STORAGE MEDIUM

A power grid anticipated fault set prediction method and apparatus, and an electronic device and a storage medium. The method comprises: obtaining a target section characteristic variable set of a preset characteristic variable type of a target power grid section (S101); determining a sample characteristic variable set matching the target section characteristic variable set in a preset sample library (S102), wherein the sample library comprises a correspondence between a sample fault set and a sample characteristic variable set, the characteristic variable type of the sample characteristic variable set is the same as the preset characteristic variable type; and finally determining that the sample fault set corresponding to the matched sample characteristic variable set is a predicted fault set of the target power grid section (S103). The fault set corresponding to the current section is obtained by comparing a characteristic variable of a sample in the sample library with a characteristic ...

Quick tightening and releasing adjustable device for binding and mooring

The invention discloses a quick tightening and releasing adjustable device for binding and mooring, which comprises an adjustable load clamp (1), two D-shaped buckles (2) and a mooring belt (3), the D-shaped buckles (2) are respectively mounted at two hooks at two ends of the adjustable load clamp (1), a rope head at one end of the mooring belt (3) is sewn with one D-shaped buckle (2), and a rope tail at the other end of the mooring belt (3) is wound and pre-tightened with the other D-shaped buckle (2) to form annular mooring. Finally, a handle of the adjustable load clamp (1) is pushed to shorten the stroke amount, and rapid mooring is achieved. According to the invention, rapid tightening, releasing and secondary tightening of the bound and tethered air-dropped object can be realized.

METHOD FOR SYNTHESIZING 3-ETHOXY-4-ETHOXYCARBONYL PHENYLACETIC ACID

Disclosed is a method for synthesizing 3-ethoxy-4-ethoxycarbonyl phenylacetic acid. With m-hydroxyphenylacetic acid as a raw material, the 3-ethoxy-4-ethoxycarbonyl phenylacetic acid is separately synthesized in three ways. The involved reaction agents and reaction conditions are relatively mild, and the operation difficulty is lowered while the reaction risk is lowered. The present invention is applicable to the preparation of repaglinide intermediate-3-ethoxy-4-ethoxycarbonyl phenylacetic acid.

Float type water surface flow velocity measuring equipment

The invention relates to the technical field of water surface flow velocity measuring equipment, in particular to buoy type water surface flow velocity measuring equipment. The float type water surface flow velocity measuring device can float on the water surface for a long time and detect the flow velocity of water flow for a long time. A buoy type water surface flow velocity measuring device comprises a mounting frame, first connecting frames, air bags, a flow velocity detecting mechanism and an anchoring stabilizing mechanism, the left side and the right side of the mounting frame are both connected with the first connecting frames, the sides, away from each other, of the first connecting frames are both connected with the two air bags, the flow velocity detecting mechanism is arranged on the mounting frame, and the anchoring stabilizing mechanism is arranged on the mounting frame. The mounting frame floats on the water surface through the air bag, the flow velocity detector is used ...

Re-pressing device for vacuum pipeline

The invention provides a re-pressing device for a vacuum pipeline. The re-pressing device comprises a plurality of first re-pressing valves and a plurality of second re-pressing valves, the variable-diameter multi-way pipeline assembly is arranged outside the vacuum pipeline, the variable-diameter multi-way pipeline assembly comprises a plurality of branch pipelines and a main pipeline, the pipe diameters of the branch pipelines are different, the branch pipelines are communicated with the main pipeline, the main pipeline is communicated with the vacuum pipeline, and the variable-diameter multi-way pipeline assembly is arranged outside the vacuum pipeline. The multiple first re-pressing valves communicate with the multiple branch pipelines in a one-to-one correspondence mode, and the relation between the effective area A of the main pipeline and the effective areas A1, A2,... Ai,... An of all the branch pipelines meets the application of the technical scheme, so that the technical problem ...

Information system security assessment method based on information gain ratio

The invention provides an information system security assessment method based on an information gain ratio, which relates to the field of information security, and comprises the following steps: carrying out feature screening by using the information gain ratio; and training the SGAN model to evaluate and classify the security of the information system. According to the method, the gain ratio is calculated to serve as a reference basis for index screening, and meanwhile, the powerful classification function of the SGAN under a small number of samples is combined with the gain ratio, so that the optimal information system classification attribute and grade division model is obtained.

Anomaly detection method under secure multi-party computing

The invention discloses an anomaly detection method under secure multi-party computing, which relates to the field of data security and comprises the following steps of: inputting data and distinguishing data source distribution; different secure multi-party computing protocols are adopted for different data sources; performing detection based on an attribute value frequency anomaly detection algorithm; and obtaining an abnormal point result. According to the method, the abnormal degree is estimated by utilizing the attribute value frequency, and two secure multi-party calculation schemes of processing the privacy protection problem under the data horizontal distribution by utilizing the security blind permutation protocol and processing the privacy protection problem under the data vertical distribution by utilizing the multi-party security and the protocol are provided according to different data distributions. The problem that the horizontally distributed data cannot be subjected to ...

Method for predicting service life of proton exchange membrane fuel cell

The invention discloses a method for predicting the service life of a proton exchange membrane fuel cell. An improved snake optimization algorithm is adopted to respectively optimize a convolutional neural network model CSO-CNN and a random vector network model CSO-RVFL to perform degradation trend prediction; a particle filter nested semi-empirical model is adopted, firstly, loop iteration is performed through a physical model of a fuel cell to obtain parameter ranges of a state equation and an observation equation, and parameter optimization is performed on the physical model by using a particle swarm optimization algorithm; and finally, adopting a Blending algorithm to carry out ensemble learning on prediction results of the data driving model and the physical model to obtain a performance degradation trend of the fuel cell, and using a performance degradation trend prediction result to predict the residual life of the proton exchange membrane fuel cell. According to the method, the ...

Grate, grate cooler module and grate cooler

... 本实用新型公开了一种篦板、篦冷机模块及篦冷机，其中，篦板包括密封板，所述密封板的一端连接有过渡板，密封板的另一端连接有滑动板，所述滑动板上还连接有推料板，所述推料板和过渡板之间设置有若干个冷却板；由密封板、滑动板、若干个冷却板、推料板以及过渡板封闭连接形成风腔；所述滑动板上开设有进风口；相邻冷却板之间的缝隙形成出风通道，围成出风通道的相邻冷却板的外表面相互平行。本实用新型的篦板优化了篦冷机空气流场，加强了气固换热，达到了节能减排的目的。 ...

Image down-sampling method and device, electronic equipment and storage medium

The invention discloses an image down-sampling method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring pixel data groups in an image one by one according to a preset sampling mode; if the pixel data set comprises a data boundary, selecting a corresponding edge expansion mode according to the type of the data boundary; and obtaining a preset edge expansion weight value in the edge expansion mode, and carrying out mean value calculation on the pixel data set according to the edge expansion weight value to obtain edge expansion mean value data. According to the method, three-mean calculation under different edge expansion processing is dynamically adjusted, frequent delay waiting time in the down-sampling process is saved, multi-module cascading can be achieved in the aspect of hardware implementation through the recyclable steps, multi-stage down-sampling of images is achieved, and the hardware area is not increased.

Sound emotion feature set identification method and system

The invention provides a sound emotion feature set recognition method and system. The method comprises the following steps: collecting an input sound set; performing feature extraction on the input sound set based on a preset feature table to obtain sound feature elements; performing emotion element screening according to the sound feature elements to obtain a sound emotion feature set corresponding to the input sound set; and performing emotion recognition based on the sound emotion feature set to obtain sound emotion information corresponding to the sound emotion feature set. By extracting the features of the input sound and screening out the sound with the emotion elements, emotion recognition is performed, the recognition efficiency of sound emotion recognition is improved, and the recognition efficiency of the sound emotion recognition is improved by calculating the standard emotion feature value and the emotion feature application rate of the sound emotion feature set. And the emotion ...

Method for cultivating poria cocos through liquidambar formosana hance

The cultivation method comprises the following steps: selecting a high-quality tree species, cutting down the tree species in late autumn or before and after light summer, shaving branches after the sweetgum tree is cut, longitudinally cutting tree barks into 3-10 strips at intervals according to the size of wood, fully drying the cut sweetgum tree, sawing the cut sweetgum tree into wood sections with the length of 65-80 cm, stacking the wood sections into a shape like a Chinese character'jing ', and planting the cut sweetgum tree in the shape of a Chinese character'jing' in the shape of a Chinese character'jing 'in the shape of a Chinese character'jing'. And placing in a ventilated and light-transmitting place for later use, and inoculating a poria cocos strain in April to May in spring. And the produced poria cocos is good in quality.

Intelligent wearable device based on 5G communication

The invention relates to the technical field of intelligent wearable equipment, in particular to intelligent wearable equipment based on 5G communication. Comprising a helmet body, a massage mechanism is arranged in the helmet body, the massage mechanism comprises an annular guide rail rotationally connected in the helmet body, and a massage cavity is machined in the helmet body. The situation that the head is uncomfortable due to the fact that the helmet is worn for a long time is prevented, an annular guide rail can be driven to move through movement of a gear, so that the massage rods move, different parts of the head are massaged, and the head is better relaxed; according to the power generation device, the power generator can be driven to move during movement, so that power generation is achieved, the photovoltaic panel can be used for power generation, and power can be supplied to power utilization components; according to the invention, the wearing height can be adjusted, and the ...

Application of molecular chaperone TF in promoting soluble expression of Senecavirus type A structural protein VP2

The invention relates to the technical field of molecular biology, in particular to application of a molecular chaperone TF in promoting soluble expression of Senecavirus type A structural protein VP2. The method comprises the following steps: firstly, on the basis of an SVA CH/FJ/2017 strain gene sequence, constructing an SVA VP2 protein recombinant expression plasmid pET28a-SVA-VP2; then, the pET28a-SVA-VP2 recombinant plasmid and a molecular chaperone pTf16 plasmid are jointly transferred into a BL21 (DE3) competent cell, and the soluble recombinant SVA VP2 protein is successfully prepared; the recombinant VP2 protein has good immunogenicity in both in-vivo and in-vitro tests, can trigger an organism to generate relatively strong humoral immune response and cellular immune response, and provides a test material and a theoretical basis for research and development of SVA subunit vaccines and diagnostic preparations.

Lithium ion battery health state and residual life prediction method

The invention discloses a lithium battery health state and residual life prediction method, which comprises the following steps of: collecting voltage, current, temperature and capacity data of charging and discharging of a lithium ion battery monomer under different working conditions, and eliminating redundant feature information in original data by adopting a KPCA (Kernel Principal Component Analysis) method; and establishing a lithium ion battery health state model and a residual life prediction model based on the time convolutional network and the Reformer model. The method comprises the following steps: initializing a population of a badger algorithm by adopting Logistic chaotic mapping, and introducing an updating strategy based on dimension learning to obtain an improved badger algorithm; and optimizing hyper-parameters of the battery health state model and the residual life prediction model by using an improved badger algorithm, and predicting the battery health state by using ...

Moving direction adjusting method and device, equipment and storage medium

The invention discloses a moving direction adjusting method and device, equipment and a storage medium, relates to the technical field of robots, and can timely correct the moving direction of a wall-climbing robot in the climbing process. The method comprises the following steps: step A, acquiring a current position sensing stripe image of the water wall tube; the current position sensing stripe image is an image acquired in the process that the wall-climbing robot moves on the water wall tube; the current position sensing stripe image comprises a plurality of stripe lines which are arranged in parallel; b, determining a current stripe parameter based on a stripe line in the current position sensing stripe image; the current stripe parameter is used for representing the inclination degree of a stripe line in the current position sensing stripe image relative to a preset direction; c, the moving direction of the wall-climbing robot is adjusted according to the current stripe parameters ...

Multi-degree-of-freedom chopping device for large-diameter high-depth wood

The invention discloses a large-diameter high-depth multi-degree-of-freedom wood chopping device, and belongs to the field of forestry machinery and agricultural machinery. The device comprises a chopper, a clamping unit, a transmission unit, an adjusting unit and a driving unit, the transmission unit innovatively adopts a space spherical hinge structure, the stability and continuity of output force are guaranteed, and the change of the force storage frequency and the stroke amplitude of the chopper is achieved by adjusting the position of a sliding block; the adjusting unit achieves chopping of wood at multiple positions through a connecting rod mechanism. According to the clamping unit, excessive clamping is fully considered, and meanwhile the safety of operators is improved. The high-depth large-diameter wood chopping device is simple in structure and convenient to operate, high-efficiency chopping of high-depth large-diameter wood can be finally achieved, and the problems of cutter ...

Monoclonal antibody and immunodetection reagent for novel coronavirus Omicron mutant strain RBD protein

The invention provides a monoclonal antibody aiming at a novel coronavirus Omicro strain RBD (spike protein receptor binding region) protein fragment and a universal and specific immunodetection reagent prepared from the monoclonal antibody. The mouse monoclonal antibody with high affinity and good specificity is obtained, and an immunodetection reagent prepared from the mouse monoclonal antibody is high in sensitivity and specificity.

Chip mounter feeder capable of preventing material jumping

The invention provides a chip mounter feeder capable of preventing material jumping, a braid is provided with a feeding positioning hole and a material bearing cavity, an electronic component is placed in the material bearing cavity, the material bearing cavity is provided with a fully-closed covering film, the chip mounter feeder comprises a shell, a braid pressing block is installed in the shell and is located below a push rod, and the shell is provided with a feeding hole; a compression spring is arranged at the lower end of the tail part of the braid pressing block; a feeding hole, a guide rail and a discharging hole are formed in the shell, and a material taking hole is formed above the guide rail and is communicated with the guide rail; a groove is formed in the bottom end of the shell, and a power control mechanism is arranged in the groove; according to the feeder, adjustable pressure is applied to the braid, so that shaking of the braid in high-speed operation is reduced, elements ...

Underground water sampling equipment for groundwater investigation and use method

The invention relates to the technical field of underground water sampling, in particular to underground water sampling equipment for underground water investigation and a use method. The underground water sampling device comprises a lifting device and a plurality of sampling mechanisms arranged on the periphery of the lifting device, the sampling mechanisms are used for collecting underground water, a control mechanism is arranged on the lifting device, the control mechanism rotates on the lifting device, and the upper end and the lower end of each sampling mechanism are controlled to be closed in the rotating process of the control mechanism. And the underground water is sealed in the sampling mechanism. Through rotation of the control mechanism, the control mechanism sequentially controls the sampling mechanisms to be closed, the multiple sampling mechanisms sample underground water separately, repeated sampling during underground water sampling is omitted, the underground water sampling ...

Data management method for realizing intelligent construction based on alliance chain

The invention discloses a data management method for realizing intelligent construction based on an alliance chain. The method comprises the following steps: establishing a software infrastructure based on an intelligent construction system and an alliance chain technology; designing a user authentication mechanism and a user credible authentication process based on an alliance chain system; designing a data structure based on the intelligent construction site system and the alliance chain system; designing a data interface based on an alliance chain system; the alliance chain, the Internet of Things and the Internet technology are deeply fused, data analysis, real-time supervision and intelligent response are integrated into an intelligent construction business management system, a whole set of data service solution is provided for a building industry unit, the method is beneficial to improving the data transparency of the whole life cycle of building production, and the construction efficiency ...

Integrated wellhead device

The invention relates to the technical field of well head devices, and provides an integrated well head device which comprises a casing head body, a lifting flange and a well completion flange which are sequentially connected from bottom to top, the casing head body is provided with a first inner cavity, and the upper end and the lower end of the first inner cavity are in sealed connection with a first hanger assembly and a second hanger assembly respectively; the lifting flange is provided with a second inner cavity; a medium output hole is formed in the well completion flange; the lower portion of the casing head body is connected with a heat exchange medium injection end, the upper end of the casing head body is connected with an exhaust end, and the heat exchange medium injection end and the exhaust end are communicated with the annulus. An outflow closed flow channel for injecting fluid is formed through the annulus, the inner pipe, the second inner cavity and the medium output hole ...

Method for cultivating poria cocos on paulownia tree

The invention discloses a poria cocos paulownia tree cultivation method which comprises the following steps: selecting a high-quality tree species, cutting down the tree species in late autumn or before and after light summer, shaving branches after cutting the paulownia tree, longitudinally cutting the bark into 3-10 strips at intervals according to the size of wood, enabling the cutting surface to be 3 cm wide and deep into xylem by 0.5 cm, erecting the cut paulownia tree on the spot, fully drying, sawing into wood sections with the length of 65-80 cm, stacking into a # shape, and transplanting the paulownia tree into a greenhouse. And placing in a ventilating and light-transmitting place for later use. After the poria cocos strain is inoculated in April to May in spring, the produced poria cocos is high in yield and good in quality.

Communication method and device based on message queue telemetry transmission protocol, and storage medium

The invention discloses a communication method and device based on a message queue telemetry transmission protocol, and a storage medium. The method comprises the following steps: sending a first message containing an equipment end identifier and an equipment end working state to a server provided with an MQTT protocol; a second message sent by the server based on the MQTT protocol is received, the second message is generated by a remote control end according to the first message and sent to the server, and the second message comprises a remote control end identifier of the remote control end and an equipment end identifier; and if yes, storing the remote control end identifier and adding the remote control end identifier into a first message subsequently sent to the server. According to the communication method based on the message queue telemetering transmission protocol provided by the embodiment of the invention, the occurrence probability that one equipment end is controlled by a plurality ...

Defect identification method and device for large closed space and medium

The embodiment of the invention discloses a large-scale closed space defect identification method and device and a medium, and belongs to the technical field of overhaul, and the method comprises the following steps: carrying out visible light image acquisition and polarized light image acquisition on a large-scale closed space; outputting a plurality of to-be-fused visible light image features at a plurality of predetermined layers of the multi-layer convolutional neural network by using the multi-layer convolutional neural network; performing wavelet decomposition on the polarized light image to obtain a plurality of polarized light image features to be fused; fusing the to-be-fused visible light image features and the corresponding to-be-fused polarized light image features to obtain a plurality of to-be-recognized fused image features; and performing defect identification on the plurality of to-be-identified fusion image features by using the defect identification neural network model ...

Ore loading quantity real-time metering system and method for large electric shovel of surface mine

The invention discloses a surface mine large electric shovel ore loading quantity real-time metering system and method. A first distance is obtained through bucket rod stay wire sensing, a first included angle is obtained through a tilt angle sensor, the current of an electric shovel is obtained through a current transformer, the voltage of the electric shovel is obtained through a voltage transformer, and preset working parameters of the electric shovel are calculated through a data processing module; and data processing is performed on the first distance, the first included angle, the current and the voltage, so that the single-bucket ore loading quantity of the electric shovel in the ore loading process is correspondingly determined, the real-time ore loading quantity of the whole mine field is obtained, and work efficiency management on the ore loading condition is facilitated.

Potted plant cultivation greenhouse with basin soaking device

The invention relates to a potted plant cultivation greenhouse with a basin soaking device. The plant cultivation shed comprises a sunshade shed, at least one liquid storage tank and at least one plant soaking basin frame. And a sunshade space is formed by the sunshade. The liquid storage pool is arranged in the sunshade space, and a liquid storage space is formed by the liquid storage pool and used for storing a nutrient solution irrigated to the plants. The plant basin soaking frame comprises at least one lifting component, a plant bearing frame and at least one humidity sensor, the plant bearing frame is suitable for bearing a plurality of flowerpots with plants, the lifting component is arranged in the sunshade space, and the plant bearing frame is arranged on the lifting component and located over the liquid storage space; the distance between the plant bearing frame and the liquid storage space is adjusted through the lifting component, the humidity sensor is arranged in soil of the ...

Chip type digital PCR (Polymerase Chain Reaction) kit for detecting porcine sapelovirus

The invention discloses a chip type digital PCR (Polymerase Chain Reaction) kit for detecting a porcine sapelovirus, and relates to the technical field of molecular biology. The chip type digital PCR kit comprises a primer pair and a probe combination, the primer pair comprises an upstream primer with the nucleotide sequence as shown in SEQ ID NO.1 and a downstream primer with the nucleotide sequence as shown in SEQ ID NO.2, and the nucleotide sequence of the probe is as shown in SEQ ID NO.3. The chip type digital PCR kit has the advantages that the chip type digital PCR kit is simple in structure and convenient to use, and the detection sensitivity is high. The invention establishes a chip type digital PCR (Polymerase Chain Reaction) detection method for the porcine sapelovirus, and provides a chip type digital PCR kit for detecting the porcine sapelovirus on the basis of the chip type digital PCR detection method for the porcine sapelovirus, and the kit has the advantages of strong specificity ...

Ship material supply chain purchase management system, method, equipment and medium

The invention relates to the technical field of ship management, in particular to a ship material supply chain purchase management system, method and device and a medium, and the system comprises a pallet management system, a material supply chain management system and an enterprise code management center system. The tray management system is used for acquiring tray data from an externally butted design drawing intermediate library and performing whole-process management on ship production materials according to the tray data; the material supply chain management system is used for carrying out real-time positioning tracking and full supply chain management on materials of both sides of a material supply enterprise; and the enterprise coding management center system is used for performing identification coding on the tray data, the standard component and the non-standard component based on the identification analysis coding system, and inputting the identification coding data into the identification ...

High-precision geologic model coal mining cutting navigation method and device

The invention provides a high-precision geologic model coal mining cutting navigation method and device, and the method comprises the steps: generating a high-precision geologic model of a coal face through employing a three-dimensional geological implicit modeling algorithm according to the existing geological data of the coal face before the cutting of the current cutter within the cutting time of the current cutter of a coal mining machine, the high-precision geologic model comprises coal and rock boundary position information of an unmined area of the coal face; according to the high-precision geologic model, determining the cutting path of the next cutting of the coal mining machine; and transmitting the cutting path of the next cutter to a control system of the fully-mechanized coal mining equipment, so that the control system of the fully-mechanized coal mining equipment controls the coal mining machine to cut the next cutter according to the cutting path of the next cutter. Therefore ...

Machine room data backup and disaster recovery method

The invention provides a computer room data backup and disaster recovery method. The method comprises the following steps: computer centralized backup and bare computer restoration; backing up and restoring the physical server; backing up and restoring the file server; backup and restoration of the virtualization environment; and backing up and restoring from the backup server. According to the method, a framework based on the master-slave backup server is constructed, the 3-2-1 principle of data backup is provided, computer centralized backup, bare computer recovery and multiple backup insurance mechanisms are achieved, if a computer room breaks down, the master-slave backup server framework can achieve data recovery from multiple aspects, and the safety of data backup is improved. And the data security problem caused by the machine room fault is reduced.

Three-dimensional geological implicit modeling method and device for coal face

The invention provides a three-dimensional geological implicit modeling method and device for a coal face, and the method comprises the steps: processing the geological data of the coal face, so as to obtain stratum demarcation point data; performing voxelization on the stratum demarcation point data to obtain a voxel grid model; partitioning the voxel grid model to obtain a plurality of sub-block grid models; performing interpolation processing on the plurality of sub-block grid models to obtain lithology values of voxels in each sub-block grid model; and assigning the lithology values of the voxels of the plurality of sub-block grid models to the voxels at the corresponding positions of the voxel grid model to obtain a three-dimensional model of the coal face. According to the method, the volume element grid model is divided into a plurality of sub-block grid models, and interpolation processing is performed on each sub-block grid model, so that the modeling efficiency of the three-dimensional ...

Generative adversarial network fault detection method adopting code input

The invention provides a generative adversarial network fault detection method adopting coding input, which relates to the field of fault detection and comprises the following steps of: performing model training by taking hidden variables after dimensionality reduction of an auto-encoder as input; calculating a statistical magnitude and obtaining a control limit; and calculating the statistical magnitude of the to-be-detected sample and carrying out fault detection. An auto-encoder is introduced, a hidden variable space is constructed based on a minimum reconstruction error, and hidden variable information after dimension reduction is used as generator input to improve the training effect of the generative adversarial network; and calculating the Manhattan distance from the hidden variable of the to-be-detected sample after passing through the encoder to the central point of the hidden variable of the training set as a new statistic for fault detection.

Motor imagery brain control command confirmation method based on error correlation potential

The invention discloses a motor imagery brain control command confirmation method based on error correlation potential, which is applied to the technical field of human body biological signals. Comprising the following steps of collecting motor imagery and error correlation potential mixed electroencephalogram signals, segmenting the motor imagery electroencephalogram signals and motor imagery feedback electroencephalogram signals, preprocessing the electroencephalogram signals, extracting and classifying mixed features of the motor imagery electroencephalogram signals, extracting and recognizing mixed features of the motor imagery feedback electroencephalogram signals, and obtaining the motor imagery and error correlation potential mixed electroencephalogram signals. If no error related potential is detected in the recognition result, a brain control instruction is generated and sent, and otherwise, the generated motor imagery brain control instruction is corrected and then sent. According ...

Big data access control method based on block chain

The invention provides a block chain-based big data access control method, and relates to the technical field of big data security, and the method comprises the following steps: carrying out access control strategy and attribute management; and judging, responding and executing the access request. By means of the characteristics of traceability, non-tampering and the like of the block chain, policy management and tracking of the whole process of policy release, update and revocation are achieved through block chain transaction management access control policies and attributes, a safe, reliable and transparent information access control architecture is achieved, and safe circulation and sharing of big data can be effectively promoted.

Coal mine three-dimensional scene dynamic generation method and device based on point cloud mirror image model

The invention provides a coal mine three-dimensional scene dynamic generation method and device based on a point cloud mirror model, and the method comprises the steps: obtaining to-be-recognized point cloud data of a coal mine working face, and determining the point cloud data of each device in the coal mine working face from the to-be-recognized point cloud data; calculating position information and attitude information of each device according to the point cloud data of each device; and according to the position information and the attitude information of each device, adjusting the position and the attitude of the standard device model of each device in the coal mine three-dimensional scene corresponding to the coal mine working surface so as to update the coal mine three-dimensional scene. Therefore, the position information and the attitude information of each device on the coal mine working face can be determined in real time along with the coal mining progress, so that the position ...

Rail point cloud extraction method based on rail data and geometric properties

The invention relates to a rail point cloud extraction method based on rail data and geometric properties, and the method comprises the steps: obtaining original point cloud data through a vehicle-mounted laser radar, and rapidly filtering out a roadbed region through employing rail point cloud height data distribution features and geometric elevation jump data features, and then rail point clouds are extracted by utilizing continuous elevation difference characteristics of the rail on a roadbed, discrete false positive nonlinear point clusters are filtered by utilizing linear data characteristics of principal component analysis, connection of the point clusters of the same rail pair is realized by utilizing a point cluster distance and an angle threshold, and finally point clouds belonging to different rail pairs are extracted. Compared with the prior art, the method has the advantages that the extraction process is further simplified, the detection accuracy is effectively improved, the ...

Six-degree-of-freedom double-probe gear measuring device following Abbe principle

The invention discloses a six-degree-of-freedom double-measuring-head gear measuring device following the Abbe principle, and belongs to the field of precision testing technologies and instruments and gear non-contact measurement. The measuring device comprises a rack unit, a Y-axis moving unit, a Z-axis moving unit, a double-measuring-head measuring unit and a C-axis rotating and fixing unit. Key components are measured in parallel in a symmetrical distribution mode, the left and right tooth surfaces of a gear are measured synchronously, rotation of double measuring heads can achieve the purpose that the angles of the measuring heads can be adjusted only by moving a guide rail multiple times in traditional measurement, and Z-axis moving units are installed on the two sides of a Y-axis moving unit and used for adjusting the positions of the double measuring heads in the tooth width direction. And meanwhile, the grating scales are coaxially mounted on the horizontal extension lines of the ...

Quality control selecting device for bagged dry powder coating

The invention discloses a bagged dry powder coating quality control selecting device, and belongs to the technical field of dry powder coating quality inspection, the bagged dry powder coating quality control selecting device comprises a conveying belt arranged on the upper portion, one end of the conveying belt is provided with a quality inspection cylinder, the top of the quality inspection cylinder is connected with an upper top plate through an arc-shaped baffle, and the outer side wall of a bearing disc is rotationally connected with an outer ring body; the outer ring body is connected with an upper sealing disc through a plurality of telescopic positioning pieces, limiting check blocks for limiting the upper sealing disc are arranged on the side walls of the two sides of the quality inspection barrel, and the limiting check blocks are connected with the quality inspection barrel through linkage unlocking pieces. Precise recognition is conducted through the pressure sensor arranged ...

Asset full-period management system based on data analysis

The invention belongs to the field of enterprise asset full-period management, and relates to an asset full-period management system based on data analysis. Through setting a vehicle identity information input module, a vehicle current value analysis module, a vehicle future value analysis module, a vehicle comprehensive value analysis module, a vehicle put-in-use screening module, a vehicle transfer demand judgment module and a cloud database, the system analyzes the current value evaluation coefficient of each vehicle from the perspective of vehicle use and maintenance; the total driving mileage and total cost of each vehicle in a future set age limit are estimated, the future value evaluation coefficient of each vehicle is analyzed, the comprehensive value of each vehicle is evaluated by combining the current and future value evaluation coefficients of each vehicle, and the continuous use demand of each vehicle is judged. And the vehicles which cannot be continuously put into use are ...

Method for synthesizing maltose acid by catalyzing maltose through glucose dehydrogenase

The invention discloses a method for synthesizing maltose acid by catalyzing maltose through glucose dehydrogenase, and belongs to the field of biological medicine. The method comprises the following steps: cloning a glucose dehydrogenase gene Ecgdh by taking escherichia coli as a template; constructing a recombinant expression glucose dehydrogenase gene Ecgdh system, and expressing glucose dehydrogenase; maltose is used as a substrate, NADH is used as an electron donor, and maltose acid is prepared through catalysis of glucose dehydrogenase; the nucleotide sequence of the glucose dehydrogenase gene Ecgdh is as shown in SEQ ID NO. 1. Compared with quinone protein glucose dehydrogenase taking PQQ as a cofactor, the glucose dehydrogenase obtained by the invention has the advantages that the yield is greatly increased, and compared with other quinone protein glucose dehydrogenase, the glucose dehydrogenase has stronger substrate preference on maltose, is suitable for large-scale preparation ...

Method and device for converting conventional tool into cable passing tool

The invention provides a method and device for converting a conventional tool into a cable passing tool, and relates to the field of petroleum production mechanical equipment, the conventional tool is provided with an axially-through working cavity, two penetrating connectors are provided, the penetrating connectors are cylindrical and are provided with axially-through containing cavities, one end of each penetrating connector is a connecting end, and the other end of each penetrating connector is a connecting end; the other end of the penetrating connector is a threading end, a threading hole is formed in the side wall of the penetrating connector, an opening in one end of the threading hole is formed in the end face of the threading end, and an opening in the other end of the threading hole is formed in the inner wall face of the penetrating connector; a cable sequentially penetrates through the threading hole of one penetrating connector, the working cavity of the conventional tool and ...

Bearing degradation analysis and fault diagnosis method and system

The invention discloses a bearing degradation analysis and fault diagnosis method, and the method comprises a data collection module which is used for obtaining a vibration signal of a bearing in a mechanical production process; the data processing module is used for performing signal decomposition and feature dimension reduction processing on the collected bearing data, reducing the calculation difficulty and reducing the influence of other features on the result; the model training module is used for establishing a bearing degradation analysis and fault diagnosis model based on DBN-ELM, training the established degradation analysis and fault diagnosis model through the data processed by the data processing module, solving the optimal parameters of the network, and minimizing the loss function error; the intelligent optimization module is used for synchronously optimizing the VME algorithm and the DBN-ELM model through an improved AGDE algorithm; and the degradation analysis and fault ...

System response correction method of time domain electromagnetic detection system

The invention relates to a system response correction method of a time domain electromagnetic detection system. The method is used for correcting the influence of system response on effective signals, self-adaptive output compensation is trained through theoretical and actual response of a correction device, and the influence of inherent characteristics of a receiving sensor on the effective signals is removed; and a real emission current waveform is obtained through actually measured current waveform and self-adaptive current sensor compensation, and earth response under unit step excitation is obtained according to an inverse function of the real emission current waveform. According to the method, the influence of system response on the time domain electromagnetic detection system signal can be removed, the signal quality is improved, the blind area time of system detection is reduced, and the detection range of the system is expanded.

Remote control concealed lightning protection device for cultural relic building based on lightning risk early warning

The invention discloses a cultural relic building remote control concealed lightning protection device based on lightning risk early warning, and the lightning protection device is concealed in a simulation tree housing, and comprises a lightning risk early warning module, an electric telescopic lightning receiving mechanism, and a grounding module. The thunder and lightning risk early warning module comprises a historical data analysis unit, a real-time data monitoring unit, a thunder and lightning risk prediction unit and a risk early warning and forecasting unit; the electric telescopic lightning receiving mechanism comprises a direct current driving motor, a gear mechanism and an electric telescopic rod which are connected in sequence, and a tip lightning receiving needle arranged at the top of the electric telescopic rod; the grounding module comprises a lightning protection downlead and a grounding end. Wherein the direct-current driving motor is connected with the risk early warning ...

Pipe making machine equipment and pipe making method

The invention relates to pipe making machine equipment and a pipe making method. The problems that in the prior art, pipe making procedures of a pipe making machine are not coherent enough, and production efficiency is low are solved. The device comprises a cutting pedestal arranged on one side of a cutter moving frame, a cutting table air duct is arranged on the cutting pedestal, one end of the cutting pedestal is provided with an air blower assembly capable of blowing smoke in the cutting table air duct to the other end, and the other end of the cutting pedestal is provided with a smoke absorbing mechanism which corresponds to the air blower assembly and can absorb the smoke. The method has the advantages of coherent working procedures, convenience in processing and high production efficiency.

Method and system for predicting drug-target protein interaction

The invention discloses a drug-target protein interaction prediction method and system, and the method comprises the steps: obtaining to-be-predicted drug molecule data and to-be-predicted target protein molecule data, and carrying out the preprocessing; performing feature extraction on the preprocessed drug molecule data and target protein molecule data; screening and splicing the hidden features of the drug molecules and the target protein molecules; and predicting the interaction relationship between the drug molecules and the target protein molecules. According to the method, the hidden features of the to-be-predicted drug molecules and the to-be-predicted target protein molecules are extracted by adopting the variational auto-encoder, screening is performed through the attention mechanism, and finally, the interaction relationship between the drug molecules and the target protein molecules is predicted based on the multi-layer perceptron, so that the prediction precision is improved ...

Classroom teaching method and system based on man-machine cooperation

The invention provides a classroom teaching method and system based on man-machine cooperation, and belongs to the field of artificial intelligence, and the method comprises the following steps: building a teaching environment; intelligent diagnosis before class; man-machine learning is assisted in class; and after-class accurate evaluation is realized. According to the invention, through man-machine cooperation and learning community theory, a classroom teaching mode including teacher intelligence, machine intelligence, man-machine cooperation and other elements is constructed, a man-machine cooperation platform is utilized to collect student data, and after analysis and diagnosis, a personalized teaching report is formed, so that a personalized teaching scheme is formulated, and the teaching quality can be effectively improved.

Distributed database parallel query method, system and device and storage medium

The invention discloses a distributed database parallel query method, system and device and a storage medium. According to the embodiment of the invention, a query statement input by a user is obtained and preprocessed, the preprocessed query statement is obtained, a connection sequence space is determined according to the preprocessed query statement, and the connection sequence space is stored in the storage medium; all the individuals are coded in the connection sequence space by adopting a genetic algorithm, all the coded individuals are initialized, dynamic planning is carried out by adopting the genetic algorithm, an optimal connection path is obtained, a corresponding query plan is determined according to the obtained optimal connection path, and a query result is obtained according to the query plan; through the method, the query cost can be reduced, the query efficiency is improved, the query speed is increased, and the method can be widely applied to the technical field of database ...

Catering replenishment distribution relay cooperation method and system

The invention discloses a catering replenishment distribution relay cooperation method and system. The system comprises catering replenishment relay cooperation distribution, a store replenishment module, a distribution center delivery module, a connection module, a rider receiving module and a cost management module. According to the restaurant replenishment and distribution relay cooperation method and system, the logistics information technology is added, the restaurant replenishment and distribution method is optimized, the total cost of distribution logistics is effectively reduced, the convenience of distribution operation is achieved, the replenishment efficiency is improved, and the problems of distribution process tracing, cargo handover safety and the like are solved; according to a common replenishment method, a distribution center dispatches a cart to be distributed to more than twenty front-end stores at a time, the problems that parking and entering are limited in a commercial ...

Preparation method of pachymaran iron with multiple pharmacological activities

The invention relates to a preparation method of pachymaran iron with various pharmacological activities. Poria cocos is subjected to a water extraction and alcohol precipitation method and a Sevage method for deproteinization and dialysis and gel column separation, a neutral pachymaran PCP-1C product is finally obtained, the neutral pachymaran PCP-1C product reacts with ferric chloride under the alkaline condition for the first time to generate the stable pachymaran iron compound, and the stable pachymaran iron compound can have multiple pharmacological activity effects. The pachymaran iron compound is characterized in that iron is used as a chelating agent to synthesize the pachymaran iron compound with pachymaran, and polysaccharide has multiple biological activities to be absorbed and utilized by organisms and has double effects as an iron supplementing agent. In addition, the stability of the iron supplement medicine is improved, the side effect is reduced, and the stability is high ...

Distillation equipment and distillation system with same

The distillation equipment comprises a tank body, a liquid inlet and a liquid outlet are formed in the tank body, the liquid inlet is formed in the position, close to the upper end, of the side face of the tank body, the liquid outlet is formed in the lower end of the tank body, a steam outlet is formed in the upper end of the tank body, and a steam outlet is formed in the lower end of the tank body. A heating net and a floating block are arranged in the tank body, the floating block can float on the surface of liquid, when the floating block floats upwards, the heating net can move upwards along with the floating block, and the heating net is located below the floating block. In the implementation process of the device, when the device is used, the heating net can be lifted to a position close to a page, so that when the heating net heats and distills a solution, an organic solvent on the upper layer can be directly heated, or a position close to the organic solvent can be heated, and ...

FPGA-based Ethernet data conversion device and method in scatter communication

The invention discloses an Ethernet data conversion device and method based on an FPGA in scatter communication, and belongs to the field of communication interface digital signal processing. The device comprises a first sending cache, a data extraction unit, a 0 filling unit, a packing unit, a second sending cache, a data sending unit, a first receiving cache, a data combination unit, a 0 deleting unit, a checking unit, a second receiving cache and a data receiving unit. The method can be installed in a new scattering product, is realized in an existing FPGA of a baseband processing unit of a scattering communication system, solves the problem of network port service intercommunication with a traditional scattering product, improves the system compatibility, and widens the use scene.

Image fusion method based on Swin Transform

The invention discloses an image fusion method based on a Swin Transform, and relates to the technical field of image processing. The method comprises the following steps: S1, constructing an end-to-end neural network, wherein the end-to-end neural network comprises a generator and a discriminator; s2, constructing a loss function of the generator and a loss function of a discriminator in the discriminator; s3, training an end-to-end neural network by using a part of the original infrared image and the original visible light image of the KAIST data set to obtain an end-to-end neural network model; and S4, testing the end-to-end neural network model stored in the step S3, and outputting a final fusion image. The image fusion method can solve the problems that an existing image fusion method based on self-attention Transform cannot effectively extract multi-scale features, cannot effectively reduce calculation complexity, cannot utilize priori knowledge and the like.

Method for extracting virus DNA in soil

The invention discloses a method for extracting virus DNA in soil. The extraction method comprises the following steps: S1, eluting a soil sample for three times by adopting a phosphate buffer solution to obtain a suspension; the mass of the soil sample is 20g, and mitomycin C is added; the ratio of the soil sample to the phosphate buffer solution is 1mg: 1mL; centrifuging the suspension to obtain supernate; filtering by adopting a vacuum filtration membrane to obtain filtrate; adding DNA (deoxyribonucleic acid) enzyme and RNA (ribonucleic acid) enzyme into the concentrated solution for enzymolysis; then adding EDTA (Ethylene Diamine Tetraacetic Acid) for incubation so as to inactivate the enzyme; concentrating and enriching the filtrate by adopting an ultrafiltration centrifugal tube to obtain a virus concentrated solution; and performing virus extraction on the virus concentrated solution to realize the extraction of the virus DNA in the soil. According to the method, the elution frequency ...

Safety early warning method and system for safety helmet

The invention discloses a safety helmet safety early warning method and system, and the method comprises the steps: obtaining safety helmet body information corresponding to a safety helmet monitoring request through responding to the received safety helmet monitoring request; detecting the wearing state of a safety helmet body corresponding to the safety helmet body information through a detection sensor, and generating safety helmet wearing information; the pressure value borne by the safety helmet body is sensed through the pressure sensor; when the safety helmet wearing information is that the safety helmet is not worn normatively or the pressure value reaches a preset pressure threshold value, alarm information is generated; and triggering an alarm device to send alarm information according to the alarm information. The technical problem that in the prior art, communication equipment on a safety helmet is usually adopted for calling for help, and the rescue efficiency is low is solved ...