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35results about How to "Reduce data processing workload" patented technology

Method and device for controlling partial discharge detection of polling robot, and partial discharge detection system

The embodiment of the invention discloses a method for controlling partial discharge detection of a polling robot, a device for controlling partial discharge detection of the polling robot, and a partial discharge detection system, aiming to solve the technical problems that an online partial discharge detection method in the prior art needs a lot of partial discharge to-be-detected devices, the cost is high, and the portable partial discharge detection is carried out by operation and maintenance personnel along with a portable partial discharge detector, and the personnel safety cannot be guaranteed, and the reference of the detection result is not high. The method of the embodiment includes steps of controlling the polling robot to move to the polling point; according to the to-be-detected device information at the polling point, adjusting a mechanical arm of the polling robot to a specific position; receiving and analyzing the video uploaded by the polling robot and shot by the mechanical arm; adjusting the mechanical arm position according to the analysis result of the video; controlling a partial discharge sensor on the mechanical arm to close to the to-be-detected device, and triggering the partial discharge sensor and starting to collect the partial discharge data.
Owner:ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO +2

Refrigerator and method for judging change of objects in object storage area of refrigerator

The invention discloses a refrigerator. The refrigerator comprises a refrigerator body, an image collection device, a human body detection device and a control device. The object storage area for storing the objects is defined in the refrigerator body. The image collection device is used for collecting images of the objects in the object storage area. The human body detection device is used for detecting a human body signal generated when a person fetches the objects from the object storage area or stores the objects to the object storage area, and generating a human body detection signal. The control device is used for obtaining the human body detection signal, judging whether the object fetching or taking action is performed in the object storage area, controlling the image collection device to collect the images of the objects in the object storage area after the person fetches or stores the objects this time, and comparing the images with images, obtained before the person performs object fetching or taking in the object storage area, of the objects in the object storage area so that the change of the objects in the object storage area after the objects are fetched or stored this time can be judged. The refrigerator can judge the change situation of the stored objects more accurately and effectively. The invention further discloses a method for judging the change of the objects in the object storage area of the refrigerator.
Owner:HEFEI HUALING CO LTD +1

Data storage and query method for compound fields

The invention discloses a data storage and query method for compound fields. The method comprises the following steps of: 1, data storage: storing multiple data in a data table meeting requirements of the third normal form, wherein all storage recordings comprise field names, specific values and serial numbers of major keys; when the compound fields are stored, adding attributes of query quantityfields and the compound fields, related to the serial numbers of the major keys; 2, data query: when the compound fields are queried, for every storage recording, firstly reading query quantity n in the query quantity fields; in the query process, counting the name information quantity m of fields meeting query requirements, and completing the query process of one storage recording when m is not less than n; and then, continuing to perform query till all data tables are queried. The storage and query method has the advantages of reasonable design, convenience for storage and query, small dataprocessing quantity and high query efficiency; and by the adoption of the storage and query method, the problems of low query efficiency, long query time, low search speed, low search efficiency and the like, existing in compound field query, can be solved.
Owner:NORTHWEST UNIV(CN) +1

Transformer test data measurement system and its measurement positioning method based on wireless network

The invention discloses a transformer test data measurement system and a method thereof based on a wireless network. The system comprises a monitoring center, a data acquisition center and a data transfer center; the monitoring center comprises a monitoring center computer, the data acquisition center comprises a plurality of data acquisition controllers and a plurality of special measurement devices, and the data transfer center comprises a Zigbee center wireless module and a Zigbee terminal wireless module; command and data are transferred between the monitoring center and the data acquisition center through the data transfer center; the special measurement devices are used for marking a corresponding actual position at a measurement position selected by the data acquisition controller so as to measure a target sample, transmitting back data through interfaces of the special measurement devices to the data acquisition controller after obtaining a measurement result, and receiving measurement result data; data is processed by the data acquisition controller after obtaining the data, and position information and the measurement result are stored; and then, selection of a next group of measurement positions and measurement operations are sequentially executed, until all the positions are measured.
Owner:苏州华储电气科技有限公司

Method for storing and inquiring range data

The invention discloses a method for storing and inquiring range data, which comprises the following steps of: 1, data storage: storing a plurality of data into a data table built in a storage device, storing the range data in a single-field storage manner, and correspondingly building a bound range data identification library, an error range data identification library and a region range data identification library; and 2, data inquiry comprising the following procedures of: inputting an inquiring keyword, analyzing and judging the inquiring keyword and inquiring the range data. The invention has the advantages of reasonable design, convenience for data storage and inquiry, and small data processing workload; meanwhile, the method for storing and inquiring the range data accords with the ordinary data storage and inquiry habit of people, visually embodies the link among the data, and can effectively solve the defects that the traditional method for storing and inquiring the range data does not accord with the daily data storage habit of people, is large in data processing workload, difficult to change, inconvenient for inquiry and the like.
Owner:NORTHWEST UNIV

Travel mode identification method based on big data machine learning

The invention discloses a travel mode identification method based on big data machine learning, which comprises the following steps: extracting a training sample investigation object and dispatching an acceleration detection device; Collecting mobile phone signaling data and acceleration detection device data; Analyzing the data fluctuation characteristics, getting the velocity and acceleration fluctuation characteristic data as the forecast input value, travel mode as the output value; extracting 80% of that data from the input parameter set as the input data set, and adopting the corresponding travel mode set as the output set to train the machine learning algorithm, and the prediction accuracy of each algorithm is detected with the remaining 20% of the data; Machine algorithm training achieves more than 80% prediction accuracy, can be used to divide the travel mode, setting the input data set as the velocity acceleration characteristic data set, the algorithm output value is the travel mode. The travel mode identification method of the invention has the characteristics of small workload and high identification accuracy.
Owner:NANJING UNIV OF SCI & TECH

Unmanned aerial vehicle video augmented reality implementation method

The invention discloses an unmanned aerial vehicle video augmented reality implementation method based on a photogrammetry technology and a 3D GIS technology. The method mainly comprises the steps ofvideo frame extraction, camera calibration, aerial triangulation reconstruction, 3D GIS virtual scene establishment, sequence frame image rendering, video synthesis and the like. According to the invention, the POS data of the unmanned aerial vehicle are utilized; the accurate camera track and attitude are recovered by using a space three-adjustment method; A three-dimensional geographic scene isestablished in a 3D GIS system; The method comprises the steps of acquiring a video image, superposing various types of vector data, importing a three-dimensional model, adding a custom character label and a graphic label, realizing a blanking effect by importing a digital surface model, then acquiring a rendered image with the same visual angle as the original video frame by frame, superposing the rendered image with the original video frame by frame, and acquiring a video result containing rich information. According to the method, the processing efficiency and effect are improved, the automation degree can be greatly improved in repeated line inspection application of linear engineering, and an efficient and real technical means is provided for scheme display and on-site inspection.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Intelligent partial discharge inspection robot

The invention provides an intelligent partial discharge inspection robot. The intelligent partial discharge inspection robot comprises a partial discharge inspection robot, an orbit and a back-stage host computer, wherein a partial discharge detection assembly, a controller and a data collector are arranged on the partial discharge inspection robot; the back-stage host computer communicates with the partial discharge inspection robot through electric carrier waves; the back-stage host computer is used for issuing an inspection command to the inspection robot so that the controller is used forcontrolling the inspection robot to move to an inspection point; the partial discharge detection assembly is used for collecting partial discharge data; a central processor is used for processing thepartial discharge data and storing the processed data into a memory; the partial discharge data are fed back to the back-stage host computer; and after the partial discharge data are completely received by the back-stage host computer, the inspection robot is controlled to move to a next inspection point. The intelligent partial discharge inspection robot provided by the invention solves the problems that the detection cost of online partial discharge is high, the safety of portable partial discharge detection staff is not guaranteed and the reference of detection results is not high.
Owner:STATE GRID ZHEJIANG PINGHU POWER SUPPLY +1

Gas-chromatography farming residual analysis protectant and use thereof

The invention provides a gas chromatography agriculture residue analysis protecting agent, which includes acetone solution containing polyethylene glycol and olive oil, wherein the concentration of polyethylene glycol is 0.5-2.0g / 100mL, the concentration of olive oil is 21.25-63.75g / 100mL. Wherein the concentration of polyethylene glycol is preferably 1.0g / 100mL, the concentration of olive oil is preferably 42.5g / 100mL; the provided gas chromatography agriculture residue analysis protecting agent has simple preparation, and has good solubility in acetone solution which overcomes bad eater solubility of other protecting agents, and avoids to bring water into gas chromatography (GC) system when introducing sample, which makes bad effect for system, especially for chromatography column. At the same time the product can improve the peak form and intensity of the detecting material and reduce detectability well for realizing multi-residue high-sensitivity analysis.
Owner:CHINESE ACAD OF INSPECTION & QUARANTINE

Optimizing design method of three-roller guiding device connecting rod mechanism

The invention provides an optimizing design method of a three-roller guiding device connecting rod mechanism. The method is characterized in that the maximum value and the minimum value of opening degree of three guiding rollers, the diameter of the guiding rollers and the travel of a hydraulic cylinder I are used as known conditions, the hinged point position of a rocking bar and the rocking arm length of the guiding rollers are determined according to the principle that the trajectory of the guiding rollers tends to be symmetrical around the rolling center, a hydraulic cylinder II that a piston rod completely penetrates through is regarded as a connecting rod, and the crank hinged point position of the mechanism and the sizes of all the rod pieces are regarded as design variables, so that the travel of the hydraulic cylinder I and the opening degree of the guiding rollers tend to a linear relationship, the operation of tending the inscribed circle center position of the guiding rollers to the rolling center is regarded as an optimizing target, the satisfied condition of the normal working and the good transmission characteristic of the connection rod mechanism are used as a constraint condition, an optimizing design math model is built, a virtual prototype model is built through ADAMS(Automatic Dynamic Analysis of Mechanical Systems), and a main object method is used for completing optimizing and solving, the working performance simulation testing is conducted on the optimized mechanism, and the mechanism parameters are finally determined.
Owner:HUBEI POLYTECHNIC UNIV

Method and system for processing image of modular television

The invention discloses a method and a system for processing an image of a modular television. The method comprises the steps as follows: when the modular television detects an external input signal, a smart card end pretreatment is carried out on the external signal through a smart card; an HDMI signal output by the card end is obtained and transmitted to a screen end plate; the screen end plate receives the HDMI signal output by the card end and carries out a screen end pretreatment on the HDMI signal output by the card end according to screen end adjustment parameters which are set by the screen end plate in advance; and a screen end output signal is obtained and displayed. The smart card and the screen end plate in the modular television are clearly separated from a functional module for video processing, so that the video processing effect is optimized; meanwhile, the data processing workloads of the smart card and the screen end plate are reduced; the processing efficiency is improved; and the standard HDMI signal is output after the external input signal is processed by the smart card, so that the effect of the video output by the screen end plate is kept consistent after the smart card is replaced and the standard HDMI signal output by the smart card is received by the screen end plate.
Owner:TCL CORPORATION

Stress curve clustering method of building fiber grating stress sensor

The invention relates to a stress curve clustering method for building fiber grating stress sensors. The method comprises the following steps: acquiring daily load data of a plurality of building stress sensors; preprocessing the daily load data of each building stress sensor to obtain initial cluster data; performing dimension reduction processing on the initial cluster data to obtain dimension-reduced cluster data, clustering the dimension-reduced cluster data based on an inverse neighbor density estimation clustering algorithm to obtain a sensor group with similar characteristics, and in the inverse neighbor density estimation clustering algorithm, a sample distance calculation method is a cosine similarity calculation method, and a sample distance calculation method is a cosine similarity calculation method. Establishing a daily load clustering feature set of the sensor group, establishing an annual model analysis chain, and constructing a building health analysis model; according to the invention, the stress data of the fiber bragg grating building stress sensor with huge data volume is clustered into a sensor group with similar characteristics, so that the stress change trend of key structures of different types of buildings can be better predicted, and a more reliable method is provided for safety monitoring of smart buildings.
Owner:GUILIN UNIV OF AEROSPACE TECH

Contour-based 3D Discrete Element Method Numerical Modeling Method for Complicated Terrain

The present invention provides a modeling method for 3D discrete element method numerical model of complicated terrain based on contour line, and belongs to numerical simulation research fields in geological engineering and mining engineering fields. The method comprises: firstly, acquiring a digital topographic map of a modeling area, encrypting elevation points at a boundary of the area and an area with sparse elevation points and obtaining elevation values of each encrypted elevation point, and extracting 3D spatial information of each elevation point and saving the information; then performing surface spline interpolation on the digital topographic map, and drawing a modeling area surface 3D graphics; inputting the 3D spatial information of all the elevation points after surface splineinterpolation into a final terrain data file, and establishing a 3D numerical model by 3D discrete element method software; and by comparison and verification with the surface 3D graphics, obtaininga final 3D discrete element method numerical model of the modeling area. According to the method, high-precision numerical modeling can be performed on any complicated terrain area, and the established model surface has smaller deviation than the actual terrain surface, and the method has higher application value.
Owner:CHINA UNIV OF MINING & TECH (BEIJING) +1

Universal data stream analysis method and system

The invention discloses a universal data flow analysis method and system, and the method comprises the steps: configuring a data flow analysis rule to form an analysis table, the analysis table comprises a plurality of configuration objects, and each configuration object comprises a configuration name, an identification code and a parameter configuration table; receiving a to-be-analyzed data stream; searching a parameter configuration table corresponding to the to-be-analyzed data stream in the analysis table; and analyzing each field in the to-be-analyzed data stream according to an analysis rule in the parameter configuration table to obtain an analysis result. According to the universal data flow analysis method, data is subjected to one-time batch configuration, the original configuration workload is greatly simplified, analysis processing of various types of data flows in the field of measurement, operation and control can be met, and by means of the analysis and parameter configuration method, different function requirements are referred to. The analysis processing problem of all data streams can be expanded, the data processing work amount is greatly shortened, and the data analysis efficiency is improved.
Owner:XIAN SPACE STAR TECH IND GRP

Microcomputer electricity, gas and liquid servo joint control field rock-soil mechanics experiment device and method

The invention discloses a microcomputer electricity, gas and liquid servo joint control field rock-soil mechanics experiment device and method. The device comprises a pneumatic control system, a hydraulic system and an electric control system. A small air compressor provides air power, a bidirectional gas-liquid pressurizing pump is used to convert low air pressure into high liquid pressure whichis provided for three electricity, gas and liquid servo valve and a depressurizing valve through pressure stabilizing, and three different pressures are output at the same time under control of a computer and software. Displacement of an experiment object can be collected synchronously, and a stress-strain relation curve can be displayed in real time. Air pressure and air control elements are adopted to realize servo joint control on high liquid pressure, output pressure is high in accuracy and small in fluctuation, and maximum fluctuation range is smaller than + / -20kPa; three different pressures are output at the same time, output flow is large and free of mutual interference, highest output pressure is 60MPa, and one equipment can meet all projects of a field rock-soil mechanics experiment. The device is simple in structure, convenient to operate and capable of well adapting to field harsh environment.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION

Processing method and device for motion displacement of oil pumping unit

ActiveCN113445992AMovement displacement is accurateGuaranteed reliabilityConstructionsControl theoryPressure data
The invention discloses a processing method and device for motion displacement of an oil pumping unit. The method comprises the steps that according to air pressure data obtained after low-pass filtering, a dead point maintaining area in at least one operation stroke of the oil pumping unit is determined, wherein the air pressure data at least comprise air pressure parameters of the oil pumping unit in the operation stroke; the dead point of acceleration data after low-pass filtering is determined according to the dead point maintaining area, and the operation cycle of the oil pumping unit is determined according to the dead point, wherein the acceleration data at least comprises acceleration parameters of the oil pumping unit in the operation stroke; the acceleration data after low-pass filtering are detected and adjusted according to the air pressure data after low-pass filtering so as to verify and adjust the operation cycle of the oil pumping unit; and the motion displacement of the oil pumping unit is determined according to the adjusted acceleration data in the operation cycle of the oil pumping unit. According to the processing method and device for the motion displacement of the oil pumping unit, the technical problem that the motion displacement calculation of a pumping unit in the prior art needs a large amount of data processing and cannot be applied to low-power-consumption application scenarios is solved.
Owner:XINJIANG G C ENERGY TECH

Anchoring critical value detection method and system based on machine learning and storage medium

The invention belongs to the technical field of anchoring detection, and particularly discloses an anchoring critical value detection method and system based on machine learning and a storage medium, and the method comprises the steps: combining an existing standard test and existing data of an anchoring critical value for training, obtaining a training model, and collecting state data of a pre-stress to-be-detected piece; preprocessing related state data according to inherent attribute parameters of a pre-stress to-be-detected piece, carrying out iterative fitting on the preprocessed data, determining an optimal fitting order, generating a self-adaptive empirical range according to training data, capturing a characteristic mutation point of a fitting graph, and reversely solving an initial solution of a stress critical value; and determining an optimal solution in the critical value initial solutions in combination with an anchoring physical process. According to the technical scheme, the method is used for detecting the anchoring critical value of the pre-stress to-be-detected piece.
Owner:四川交达预应力工程检测科技有限公司

Transformer test data measurement system and measurement locating method thereof based on wireless network

The invention discloses a transformer test data measurement system and a method thereof based on a wireless network. The system comprises a monitoring center, a data acquisition center and a data transfer center; the monitoring center comprises a monitoring center computer, the data acquisition center comprises a plurality of data acquisition controllers and a plurality of special measurement devices, and the data transfer center comprises a Zigbee center wireless module and a Zigbee terminal wireless module; command and data are transferred between the monitoring center and the data acquisition center through the data transfer center; the special measurement devices are used for marking a corresponding actual position at a measurement position selected by the data acquisition controller so as to measure a target sample, transmitting back data through interfaces of the special measurement devices to the data acquisition controller after obtaining a measurement result, and receiving measurement result data; data is processed by the data acquisition controller after obtaining the data, and position information and the measurement result are stored; and then, selection of a next group of measurement positions and measurement operations are sequentially executed, until all the positions are measured.
Owner:苏州华储电气科技有限公司

Driver state monitoring system based on physiological information

The invention relates to a driver state monitoring system based on physiological information. The system comprises a physiological information acquisition unit, a background monitoring center and a vehicle-mounted intelligent box installed on a driving vehicle. The physiological information acquisition unit comprises a heart rate wristband for detecting heart rate data of a driver and a heart ratecoefficient acquisition device for detecting ECG data of a driver; the heart rate wristband is directly connected with the background monitoring center; the heart rate coefficient acquisition deviceis connected with the background monitoring center through the vehicle-mounted intelligent box; and the background monitoring center carries out analysis based on the collected heart rate data and a heart rate variable coefficient to obtain current driver state information. Compared with the prior art, the driver state monitoring system has the following advantages: the heart rate wristband and the heart rate coefficient acquisition device are used for directly acquiring the physiological information of the driver and statistical analysis is carried out based on the physiological information,so that the driving state is reliably monitored in real time on the premise that the construction cost of the monitoring system is lowered and the data processing workload is reduced.
Owner:TONGJI UNIV

Bus promotion data promotion result determination method and device and server

The invention provides a bus promotion data promotion result determination method and device, and a server, and aims to provide a new bus promotion data promotion result determination mode, thus morecompletely obtaining the bus promotion data promotion result, and obtaining the bus promotion data promotion result with higher precision. The method comprises the steps that a server determines a busstation of a conversion result of bus promotion data to be determined; the server acquires query behavior data corresponding to the bus station; the server traverses the initiator ID corresponding tothe query behavior data, and determines a plurality of UEs initiating the query behavior; the server obtains first order data corresponding to the promotion content of the bus promotion data, and thefirst order data is used for indicating order behaviors initiated through different promotion channels corresponding to the promotion content; the server screens out second order data corresponding to the bus station from the first order data; and the server determines a promotion result of the bus promotion data according to the plurality of UEs and the second order data.
Owner:武汉元光科技有限公司

Battery pack electric quantity management system and method

The invention relates to a battery pack electric quantity management system and method. The system comprises a battery pack and a server, wherein a battery cell, a charging and discharging circuit, anelectric quantity measuring circuit, a controller, a first interface circuit and a second interface circuit are arranged in the battery pack; wherein the charging and discharging circuit is connectedwith the battery cell and the controller and is used for receiving a control instruction of the controller to switch the battery cell into a charging state or a discharging state; the charging and discharging circuit is connected with the server through the first interface circuit, and supplies power to the server through the first interface circuit when the charging and discharging circuit is ina discharging state or charges the battery cell when the charging and discharging circuit is in a charging state. The electric quantity measuring circuit is connected with the battery cell and acquires electric quantity data of the battery cell to generate corresponding electric quantity communication data; the controller is connected with the electric quantity measuring circuit and acquires electric quantity communication data from the electric quantity measuring circuit; the controller is connected with the server through the second interface circuit and sends electric quantity communication data to the server when receiving an electric quantity request instruction of the server. By implementing the invention, the data processing workload of the server can be reduced.
Owner:东莞欧陆通电子有限公司

Data storage and query method for compound fields

The invention discloses a data storage and query method of a compound field, comprising the following steps: 1. Data storage: storing a plurality of data in a data table meeting the requirements of the third paradigm, and each storage record includes field name information, Three types of information: specific value and primary key number; when storing composite fields, add the query quantity field and composite field attributes associated with the primary key number; 2. Data query; when querying composite fields, for any storage record, first read The query quantity n in the query quantity field, the number m of field name information that meets the query conditions is counted during the query process, and when m≥n, the query process of a stored record is completed; after that, continue to query until all data tables are queried. The invention has the advantages of reasonable design, convenient storage and query, small amount of data processing, and high query efficiency, and can solve the problems of low query efficiency, long time-consuming, inability to quickly and efficiently search and the like when querying compound fields.
Owner:NORTHWEST UNIV +1

Product management system based on Internet of Things and data acquisition method thereof

The invention discloses a product management system based on the Internet of Things and a data acquisition method thereof. The system comprises a server, a gateway and a plurality of acquisition devices arranged in a distributed mode. Each acquisition device is provided with a power supply, a CPU, a temperature and humidity acquisition module, a code scanning module and a communication module; the temperature and humidity acquisition modules are used for acquiring temperature and humidity data; the code scanning modules are used for collecting code scanning data of a product; the communication modules are used for sending the collected temperature and humidity data and the code scanning data to the gateway; the gateway is connected with the acquisition devices and is used for converging the received data and sending the data to the server; and the server is in communication connection with the gateway and is used for receiving the aggregated data sent by the gateway and recording and analyzing the aggregated data. The system is high in integration level, and the cost is reduced; the full-automatic operation is achieved, adaptability is high, and the system can adapt to complex and severe working environments; the networking is flexible, and the system can adapt to factories of different scales.
Owner:HUAZHI RICE BIO TECH CO LTD

Interval type light control device for measuring soil sample penetrating fluid level

The invention discloses an interval type light control device for measuring soil sample penetrating fluid level, which at least comprises a soil sample container, a penetrating fluid pipe inserted in the soil sample container, a light source assembly and a sensor module. The light source assembly at least comprises a linear light source. The sensor module at least comprises a plurality of photodetectors. The linear light source and the photodetectors are oppositely disposed on both sides of the penetrating fluid pipe. The linear light source is arranged along the longitudinal direction of the penetrating fluid pipe. The plurality of the photodetectors are arranged at intervals along the longitudinal direction of the penetrating fluid pipe. On one hand, the light control device requires a smaller number of photodetectors, lowers device cost and improves operational convenience; on the other hand, quantity of acquired data is greatly reduced, work amount of data processing at a later stage is reduced, measuring accuracy also can meet actual engineering requirements, and the light control device has high practical applicability and popularization value in engineering practice.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD

A microcomputer-electric-hydraulic servo joint control field rock and soil mechanics test device and method

The invention discloses a microcomputer electricity, gas and liquid servo joint control field rock-soil mechanics experiment device and method. The device comprises a pneumatic control system, a hydraulic system and an electric control system. A small air compressor provides air power, a bidirectional gas-liquid pressurizing pump is used to convert low air pressure into high liquid pressure whichis provided for three electricity, gas and liquid servo valve and a depressurizing valve through pressure stabilizing, and three different pressures are output at the same time under control of a computer and software. Displacement of an experiment object can be collected synchronously, and a stress-strain relation curve can be displayed in real time. Air pressure and air control elements are adopted to realize servo joint control on high liquid pressure, output pressure is high in accuracy and small in fluctuation, and maximum fluctuation range is smaller than + / -20kPa; three different pressures are output at the same time, output flow is large and free of mutual interference, highest output pressure is 60MPa, and one equipment can meet all projects of a field rock-soil mechanics experiment. The device is simple in structure, convenient to operate and capable of well adapting to field harsh environment.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION

A method, device and server for determining promotion result of public transport promotion data

This application provides a method, device and server for determining the promotion results of public transport promotion data, which are used to provide a new method for determining the promotion results of public transport promotion data, and to obtain the promotion results of public transport promotion data more completely, thereby obtaining The promotion results of the public transport promotion data with higher accuracy. The method includes: the server determines the bus station whose conversion result of the bus promotion data is to be determined; the server obtains the query behavior data corresponding to the bus station; the server traverses the originator ID corresponding to the query behavior data, and determines multiple UEs that initiate the query behavior; The first order data corresponding to the promotion content of the promotion data, wherein the first order data is used to indicate the order behavior initiated through different promotion channels corresponding to the promotion content; the server screens out the second order corresponding to the bus station from the first order data data; the server determines the promotion result of the bus promotion data according to multiple UEs and the second order data.
Owner:武汉元光科技有限公司

An Optimal Design Method for the Link Mechanism of a Three-roller Guide

The present invention is a method for optimizing the design of the linkage mechanism of a three-roller guiding device. The method takes the maximum and minimum openings of the three guide rollers, the diameter of the guide roller and the stroke of the hydraulic cylinder I as the known conditions, and according to the Based on the principle that the motion track tends to be symmetrical with respect to the rolling center, the position of the hinge point of the rocker and the length of the swing arm of the guide roller are determined; then the hydraulic cylinder II with the fully extended piston rod is regarded as a connecting rod, and the position of the hinge point of the mechanism crank and the length of the swing arm of the guide roller are determined. The size of each rod is a design variable, so that the stroke of the hydraulic cylinder I and the opening of the guide roller tend to be linear, and the center of the inscribed circle of the guide roller tends to the rolling center as the optimization target. Work and have good transmission characteristics to meet the conditions as constraints, establish an optimal design mathematical model, establish a virtual prototype model through ADAMS and use the main objective method to complete the optimization solution, and then perform a simulation test on the optimized mechanism to determine the final Institutional parameters.
Owner:HUBEI POLYTECHNIC UNIV

Road information intelligent automatic extraction method

The invention discloses an intelligent automatic road information extraction method and relates to the field of informatization. The method comprises the following steps of road point cloud data organization and extraction, road center line extraction and road vector marked line extraction. The method is advantaged in that the road marking position can be quickly and accurately obtained through a fuzzy positioning clustering extraction method; finally, the electronic vector marking line is formed. The method can be widely applied to the fields of high-precision map making, smart roads, cities, traffic planning and design and the like, and can effectively assist smart city construction and management for a long time.
Owner:星际空间(天津)科技发展有限公司

Method for judging changes of items in refrigerator and its storage area

The invention discloses a refrigerator, which comprises: a box body, an image acquisition device, a human body detection device and a control device, wherein a storage area for storing items is defined in the box body; the image acquisition device is used to collect items in the storage area The human body detection device is used to detect the human body signal when picking and placing items in the storage area and generate a human body detection signal; the control device obtains the human body detection signal, and judges that there is a human body detection signal in the storage area Item action, then control the image acquisition device to collect the image of the item in the storage area after the item is picked and placed this time, and compare the image with the image of the item in the storage area before the item is picked and placed in the storage area this time. Determine the change of the items in the storage area after the item is picked and placed. The refrigerator can more accurately and effectively judge the change of stored items. The invention also discloses a method for judging the change of items in the storage area of ​​the refrigerator.
Owner:HEFEI HUALING CO LTD +1
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