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156results about How to "Avoid Manual Inspection" patented technology

Line-loss anomaly detection method for electric power measurement automation system

The invention provides a line-loss anomaly detection method for an electric power measurement automation system. The method comprises the steps of S1, acquiring a line loss daily fluctuation index and a line loss variation tendency index of each line through the calculation of a line loss data table; S2, respectively judging whether the line loss daily fluctuation index of each line exceeds a first threshold value or not and respectively judging whether the line loss variation tendency index of each line exceeds a second threshold value or not; S3, judging a line with the line loss daily fluctuation index thereof to exceed the first threshold value or the line loss variation tendency index thereof to exceed the second threshold value as a line loss abnormal line. According to the technical scheme of the invention, two abnormal conditions, namely the line loss mutation anomaly and the line loss variation tendency anomaly, can be found out based on the line loss daily fluctuation index and the line loss variation tendency index of each line. Meanwhile, through adjusting the above threshold values, the anomalies of different degrees can be found out. The number of daily abnormal lines can be adopted to evaluate the health degree of the entire power grid. Therefore, the finding sensitivity of the existing system for line loss anomalies is improved. The defect that the manual inspection and discovery is not timely can be overcome. The reasons for line loss anomalies can be further detected.
Owner:SHENZHEN POWER SUPPLY BUREAU

Vacuum tube vacuum-degree on-line monitoring device of high-voltage power distribution device and method thereof

InactiveCN101762355AEliminate strong electromagnetic interferenceDoes not affect insulation propertiesVacuum gaugesCapacitanceLow voltage
The invention relates to a vacuum tube vacuum-degree on-line monitoring device of a high-voltage power distribution device and a method thereof; in the device, a capacity coupler carries out coupling to an alternating-current field signal, a coupling electric field signal is led out to a signal pick-up circuit by a capacitance potentiometer low-voltage arm, after carrying out rectification filtering processing, the pick-up signal is converted into a frequency signal through a voltage-to-frequency conversion circuit, and the frequency signal is transmitted to a microprocessor unit after being coupled and separated. Software processing and analysis are carried out to the acquired signal of the microprocessor, so as to realize the vacuum-degree on-line monitoring function with 10-2 of resolution ratio, an acousto-optic alarming unit realizes vacuum degree degradation pre-alarming function, and the monitoring system and other monitoring systems are synchronized and integrated by a communication unit, so as to be convenient for centralized processing, analysis and sharing of the data. In the device, by monitoring the change of the vacuum tube shielding case alternating-current potentiometer, the change of the vacuum degree is monitored; the structure is simple, the cost is low, the disadvantage that the temperature of a crystal element of a photoelectric probe such as pockels is overcome, the measurement is reliable, the installation is convenient, therefore, the invention is a real-time monitoring device with complete function.
Owner:TAIYUAN UNIV OF TECH

A vegetation coverage detection method and device thereof in a grazing sheep feeding path of a grassland

The invention discloses a vegetation coverage detection method and device thereof in a grazing sheep feeding path of a grassland. The vegetation coverage detection method comprises the following stepsof 1 collecting and pre-processing a vegetation image; 2 establishing a vegetation characteristic database; 3 segmenting the vegetation image and calculating the coverage degree of various vegetation. The detection device comprises an image acquisition mechanism, an image preprocessing module, a feature library training module and a vegetation segmentation module. The method and the system of theinvention can correct the focal length of the camera and the coefficient when the image pixel is calculated by comparing the vegetation image with the calibration image of the artificial method, thereby improving the accuracy of the vegetation image. By adopting the principal component analysis method to reduce the dimension of the image, the redundancy of the characteristic parameters can be reduced. The method and the system of the invention conveniently divide a vegetation image into a plurality of single vegetation images by establishing a BP neural network training model, thereby calculating the coverage of each vegetation and improving the detection efficiency of the vegetation coverage in the grazing sheep feeding path.
Owner:INNER MONGOLIA UNIVERSITY

Communication monitoring system with anti-interference transmitting and monitoring data for distribution network

The invention provides a communication monitoring system with anti-interference transmitting and monitoring data for a distribution network. The communication monitoring system comprises a server, a handheld application terminal and multiple field data collecting terminals in communication connection with the server through GPRS (General Packet Radio Service) or optical fiber. The communication monitoring system is characterized by downloading on-site to-be-inspected initial data or a last inspection result from the server by a user by using the handheld application terminal before carrying out on-site inspection by the handheld application terminal, and storing the initial data or the last inspection result in a data storage module of the handheld application terminal; during on-site electricity utilization inspection, recording an inspection result of on-site electricity equipment on the handheld application terminal according to an on-site user situation, and locating geographical location information during on-site electricity utilization inspection or geographical location information of the user in real time by combining the function of a GPS (Global Positioning System) a mobile terminal for inspecting; uploading data information collected by the handheld application terminal to the server after inspection is finished, realizing data exchange between the handheld application terminal and the server, and updating information of an internal database of the server.
Owner:LIANGSHAN POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +1

Detection device and method for insulation resistance of double-winding motor

The invention provides a detection device and method for insulation resistance of a double-winding motor. The device comprises a control unit, a voltage and current detecting unit and an insulation resistance calculating unit, wherein the control unit is used for controlling a converter to apply direct-current bus voltage in the same direction and direct-current bus voltage in the reverse direction, the voltage and current detecting unit is used for detecting the voltage and the current of the output end of a first winding and the voltage and the current of the output end of a second winding relative to a grounding point under the state of applying the direct-current bus voltage in the same direction and the direct-current bus voltage in the reverse direction, and the insulation resistance calculating unit is used for calculating the insulation resistance according to the detected voltage and the detected current. The direct-current bus voltage different in direction is applied to the windings by controlling the converter of the double-winding motor, voltage values and current values of measuring circuits under the direct-current bus voltage different in direction are measured, and then the insulation resistance value is calculated. It is avoided that a maintainer manually detects the insulation resistance of the motor by carrying an insulation resistance tester, and the insulation resistance of the motor can be detected intelligently in a normalization mode.
Owner:BEIJING ETECHWIN ELECTRIC

Method for detecting interface difference, electronic device and computer readable medium

Embodiments of the present application disclose a method of detecting interface differences, an electronic device, and a computer readable medium. One embodiment of the method comprises the followingsteps: determining a matching interface screenshot and an interface effect map, wherein the matching between the interface screenshot and the interface effect map means that the interface effect map is a design effect map of the interface intercepted by the interface screenshot, and the interface effect map is a design effect map of the interface intercepted by the interface screenshot; comparingthe matching interface screenshots and interface effect drawings to determine whether the matching interface screenshots and interface effect drawings are consistent; in response to determining that the interface screenshots and the interface effect maps that match each other are inconsistent, generating difference information, wherein the difference information includes difference position information and difference degree information. The embodiment can provide a method for detecting interface differences realized by an electronic device, thereby avoiding manual detection and saving human cost.
Owner:SHANGHAI LIANSHANG NETWORK TECHNOLOGY CO LTD

Tappet automatic comprehensive detection device

The present invention discloses a tappet automatic comprehensive detection device, which comprises a feeding mechanism, a detection mechanism, a station transfer mechanism, a marking device, a defective product classifying mechanism, a fuel injection device, a qualified product receiving and loading mechanism and a control system. The feeding mechanism is used for transferring to-be-detected tappets located at correct positions to the first detection station of the detection mechanism. The detection mechanism is used for conducting the multi-term detection for the above tappets fed by the feeding mechanism with the assistance of the station transfer mechanism. The defective product classifying mechanism is used for classifying unqualified tappets that have been detected and marked. The qualified product receiving and loading mechanism is used for loading qualified tappets that have been subjected to oil injection treatment into a packaging mold box. Due to the adoption of the above technical scheme of the invention, tappets only need to be placed upwardly on a feeding belt of the feeding mechanism, and then a plurality of quality detection items on the tappets can be automatically completed. Meanwhile, according to a detection result, qualified tappets are loaded into the packaging mold box and unqualified tappets are classified and recovered according to specific unqualified items thereof. Therefore, the complicated manual detection is avoided. The device is time-saving, labor-saving and good in reliability.
Owner:韦士肯(厦门)智能科技有限公司

Device and method for diagnosing bolt looseness of power transmission tower pole material connection node

The invention discloses a device and a method for diagnosing bolt looseness of a power transmission tower pole material connection node. The device for diagnosing bolt looseness of a power transmission tower pole material connection node comprises a strain data acquisition device, a wireless sensor network system, a bolt looseness diagnosis module and a diagnosis result display terminal. At leasttwo strain data acquisition devices are installed near node bolts of a rod material connection node of a power transmission tower, and are used for acquiring real-time strain response data at the rodmaterial connection node, transmitting the real-time strain response data to the bolt looseness diagnosis module through the wireless sensor network system, judging the bolt looseness failure condition through the bolt looseness diagnosis module, and finally a node bolt looseness failure diagnosis result is displayed through the diagnosis result display terminal. According to the invention, intelligent diagnosis of bolt loosening failure is realized, manual detection consuming a lot of manpower and material resources is avoided, and the problems of node bolt detection and operation maintenanceare effectively solved.
Owner:STATE GRID HUBEI ELECTRIC POWER RES INST +3

Land oil and gas pipeline defect diagnosis method based on hyperspectral remote sensing technology

The invention provides a land oil and gas pipeline defect diagnosis method based on a hyperspectral remote sensing technology, and the method comprises the steps of inputting an oil and gas pipeline hyperspectral image generated by a spectral imager into a computer through the hyperspectral remote sensing technology, and marking and training oil and gas pipeline spectral data obtained through an experiment through a BP neural network and a machine learning method; extracting hyperspectral images and spectral characteristics of oil and gas pipelines with leakage, defects and the like, and determining leakage areas and defect positions of the oil and gas pipelines; grading the oil and gas pipeline surface data through an unsupervised machine learning entropy method, then performing automaticclassification according to defect levels through a BP neural network, and performing early warning display according to normality, faults and alarms. The invention solves the problem that the existing oil and gas pipeline leakage and defect area detection needs a large amount of manpower and is difficult to position, realizes artificial intelligent inspection of the land oil and gas pipeline byutilizing a hyperspectral remote sensing technology, and has the characteristics of good economy, wide application scene and wide application object.
Owner:XI AN JIAOTONG UNIV

Charging station video monitoring intelligent operation and maintenance management platform

The invention discloses a charging station video monitoring intelligent operation and maintenance management platform which comprises a charging station, an operator and an operation and maintenance center. The system comprises a network camera, a network video recorder, a switch, an intelligent operation and maintenance management module and a video diagnosis server. The video diagnosis server isin communication connection with an operator and is also in communication connection with the video acquisition assembly; The operation and maintenance center comprises a platform server and a receiving gateway, and the receiving gateway is in communication connection with an operator and is also in communication connection with the platform server; Wherein the network camera is connected with the network video recorder, the network video recorder is connected with the switch, the network video recorder is further connected with the intelligent operation and maintenance management module, theintelligent operation and maintenance management module is connected with the switch, the switch is connected with the video diagnosis server, and the video diagnosis server is in communication connection with an operator; According to the invention, a large number of monitoring devices can be managed conveniently, the overall operation condition can be mastered conveniently, automatic detectionis improved, and manual inspection is avoided.
Owner:杭州互源科技有限公司
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