49results about How to "Improve the efficiency of operation and maintenance" patented technology

The invention discloses a GIS space service based distribution network power supply capacity real-time analysis method. The method comprises the steps of real-time power failure data analysis, real-time extra low voltage circuit analysis and real-time heavy overload platform analysis; according to historical power failure data and real-time power failure data, frequent power failure analysis is conducted from regional distribution and time distribution, and pre-alarm is conducted on frequent power failure areas and time frames; power failure influence, breakdown repair, distribution network investment and consumer complaint information are associated, and the planned outage schedule rationality, distribution network fault repair efficiency, sensitivity of different areas on power failure and distribution network effectiveness are analyzed; by means of GIS space service, real-time states and analysis results of distribution transform and feeders are displayed on a map. Accordingly, locating and tracking of abnormal distribution transform information and image display of the regional abnormal degree are achieved, auxiliary correlation analysis is conducted on abnormal areas and all related factors, distribution network power supply capacity influence factors are deeply analyzed, and the decision basis is provided for distribution network transformation.

The invention relates to an electric power unified video monitoring platform equipment fault diagnosis early warning method. The method comprises steps of rapid equipment fault diagnosis analysis and positioning, diagnosis fault early warning and fault data analysis. The method is advantaged in that automatic diagnosis analysis positioning of a blank screen and error code faults existing in a platform video equipment operation process can be realized, operation and maintenance personnel is facilitated to rapidly realize troubleshooting, position fault causes and solve problems, and operation and maintenance efficiency is improved. The method is advantaged in that multi-dimension analysis on the equipment fault causes, fault types, fault frequency, typical fault regions and typical fault scenes is carried out to form an equipment operation defect database, data support is provided for later video monitoring equipment model selection and network configuration standardization, operation personnel workload is effectively reduced, operation maintenance efficiency is improved, and the platform reliability index is improved.

The invention discloses a defect analysis and closed-loop management system for auxiliary equipment of a transformer substation. The system comprises an intelligent mobile terminal, a cloud server anda defect analysis and closed-loop processing device for the auxiliary equipment of the transformer substation, Defect information is collected on site by using an intelligent mobile terminal; uploading the data to a cloud server; the cloud server transmits the information to the auxiliary equipment defect analysis and closed-loop processing device of the transformer substation; the substation auxiliary equipment defect analysis and closed-loop processing device generates a defect work order according to the received defect information and assigns the defect work order to corresponding operation and maintenance personnel, and analyzes the equipment defect rate and the defect elimination rate and pre-judges familial defects according to the defect work order information and the defect elimination condition; And receiving the defect elimination information uploaded by the operation and maintenance personnel for auditing, and feeding an analysis result and an auditing result back to the intelligent mobile terminal through the cloud server. The state of the auxiliary facility operation and maintenance work order can be supervised in the whole process, and the equipment defect information processing process can be mastered in time.

The invention discloses a fault prediction method for a fault log of a high-performance computing system, and the method comprises the following steps: obtaining the fault log data of the high-performance computing system, and obtaining a fault time sequence through the analysis of the fault log data, and the fault time sequence is suitable for an LSTM model; adopting a K-means algorithm to carryout clustering processing on the fault types contained in the fault log data; building an FD-LSTM model based on the fault time sequence; and based on the FD-LSTM model, predicting a fault occurrencenode position and fault advance time of a clustering result of each fault type, and carrying out statistical analysis on a prediction result according to a system architecture. According to the invention, through fault classification prediction, the fault analysis accuracy of a high-performance computing system can be effectively improved, the operation and maintenance efficiency is enhanced, andthe reliability of the system is effectively improved.

The invention discloses a converter station secondary circuit abnormity identification and early warning method based on a deep belief network, and the method comprises the steps: building a historical abnormity data set and a normal data set of a mutual inductor coil through a secondary circuit intelligent analysis system, combining a fault equipment part, a fault reason and an operation and maintenance guide rule, and carrying out the summarization to form a typical fault processing knowledge base; forming a fault part sample set with a label according to the historical abnormal data of thetransformer coil in combination with actual operation and maintenance experience; establishing a DBN model, performing unsupervised layer-by-layer training on the DBN model by utilizing the training set with the fault classification label, and finally forming a diagnosis model; inputting samples to be classified into the diagnosis model trained in the step 3 according to classification rules, andoutputting to obtain specific classifications and error values under different classifications n; and sending the error value early warning information to the background of the secondary circuit intelligent analysis system. The problems that the pressing plate state of the protection device is abnormal, and the multi-protection acquisition device is abnormal and cannot give an early warning are solved.

The invention provides an NFC (Near Field Communication) technology-based intelligent substation optical cable label system which comprises an NFC intelligent label generation device, an NFC electronic label and an NFC intelligent label analysis device, wherein the NFC intelligent label generation device comprises a label file generation module and a first NFC card reader; the label file generation module is used for generating an intelligent label file; the first NFC card reader interacts with the NFC electronic label in an NFC wireless way and writes the intelligent label file generated by the label file generation module into the NFC electronic label; the NFC intelligent label analysis device is used for acquiring intelligent secondary equipment or optical fiber loop information by reading the intelligent label file in the NFC electronic label, matching the acquired intelligent secondary equipment or optical fiber loop information with analyzed SCD (Substation Configuration Description) data and then displaying the intelligent secondary equipment information and input and output of intelligent secondary equipment in a graphical way. According to the NFC technology-based intelligent substation optical cable label system, the personnel engineering construction and operation and maintenance efficiency of an intelligent substation secondary technology can be improved.

The invention discloses a method and system for automatically positioning an electric power facility instrument, and the method comprises the steps: obtaining a plurality of groups of original image data which are located in different collection environment conditions and comprise the electric power facility instrument, and carrying out the data augmentation, so as to obtain a sample image data set; performing content labeling on the images in the sample image data set; constructing a convolutional neural network model, and training the convolutional neural network model by using the sample image data set subjected to content labeling to determine the convolutional neural network model for automatic positioning of the electric power facility instrument; and automatically positioning the electric power facility instrument in an image to be detected by using the convolutional neural network model for automatically positioning the electric power facility instrument to obtain positioning information. According to the invention, identification feedback is carried out according to image information collected by the visible light imaging camera in a complex environment, higher detection precision and detection timeliness are achieved, and the actual engineering requirement that a traditional instrument is accessed to the ubiquitous electric power Internet of Things in an electric power system is met.

The invention discloses a transient-state same-source data comparison method based on wave recording files. The method includes the steps that a channel mapping relation of an acquisition unit and a protection device is acquired; the wave recording files, generated by the same group of faults, of the protection device and the wave recording acquisition unit are obtained; the horizontal coordinateX1 of a sampling zero moment point is obtained; effective values, phase angles, deflection moment absolute time and switch value states of a previous cyclic wave, a later cyclic wave and two later cyclic waves of the same channel of the wave recording files of the same fault of the acquisition unit and the protection device are subjected to comparison and warning. By means of the method, the difference condition of a same data source is monitored in real time by obtaining the fault wave recording files of the acquisition unit and the protection device during each time of start, visual warningand prompting can be achieved, and the operation and maintenance efficiency of an intelligent transformer substation is improved.

The invention discloses a remote monitoring system of multiple ground source heat pumps, comprising a computer or a mobile phone terminal device, a cloud touch screen, a local touch screen and multiple ground source heat pumps with PLC controllers; the computer or the mobile phone terminal device is in communication and connection with the cloud touch screen through an internet; the cloud touch screen is in communication and connection with the local touch screen through the internet; one of the multiple ground source heat pumps is set to be a host machine, and the rest is slave; several slaves are respectively connected with a buried pipe water pump and a user side water pump; all PLC controllers are formed to be a PLAN local area network; the PLC controller of the host machine is in communication and connection with the local touch screen through Modbus communication protocol; the PLC controllers of all slaves are in communication and connection with the PLC controller of the host machine. The remote monitoring system can realize the unmanned guidance of a local machine room and solve problem of insufficient professionals of refined regulating control professionals by the management of professionals at an operation center.

The invention discloses an intelligent power transmission line lightning arrester action remote monitoring and precise positioning system, which relates to the technical field of lightning arrester remote monitoring. The intelligent power transmission line lightning arrester action remote monitoring and precise positioning system comprises a background system, a front-end system and an auxiliary power supply system, wherein the background system and the front-end system are in bidirectional electrical connection; an input end of the front-end system is electrically connected with the auxiliarypower supply system; and the background system comprises a network server. Through setting the background system, the front-end system and the auxiliary power supply system, the intelligent power transmission line lightning arrester action remote monitoring and precise positioning system has the advantages of long-distance wireless transmission, no maintenance, no battery replacement, convenientdata management and the like, can realize remote information transmission and monitoring of lightning counting of a power transmission line, avoids tower climbing for checking a mechanical lightning counter, greatly improves the operation and maintenance efficiency of the power transmission line, significantly reduces the labor intensity of operation and maintenance personnel of the power transmission line, saves a large amount of manpower and material resources, and saves the operation and maintenance cost of the line.

The invention discloses an OTDR (optical time-domain reflectometry) device based on optical signal monitoring of multi-optical fiber. The OTDR device comprises a master control unit, an optical sending unit, an optical splitting unit, an oscillograph unit, N coupling unit and N optical splitting detection units, wherein the master control unit is respectively connected with the optical sending unit and the oscillograph unit; the optical sending unit is connected with the optical splitting unit; the optical splitting unit is correspondingly connected with N coupling units, the input end of eachcoupling unit is respectively and correspondingly connected with the optical splitting unit and one optical splitting detection unit, the output end of each coupling unit is correspondingly connectedwith a to-be-tested optical fiber; each optical splitting detection unit is correspondingly connected with the master control unit. The OTDR device disclosed by the invention has the advantages thatthe monitoring and the positioning searching on fault points of multiple to-be-tested optical fibers can be performed at the same time, the testing speed is fast, and the measurement precision is high.

The invention is applicable to the technical field of operation and maintenance, and provides a method and a system for transmitting information of a work site. The method comprises the following steps: receiving image information of the work site and identifying a plane shape of an electric power device in the image information; transmitting the image information of the electric power device in the image information; matching the plane shape with the three-dimensional graphics of the electric power equipment in the preset database; if the plane shape is matched from the three-dimensional stereoscopic graphics, the matching being successful, and determining the target electric power device according to the matched three-dimensional stereoscopic graphics; acquiring a mapping relationship between a power device and a remote terminal, and determining a target remote terminal corresponding to the target power device according to the mapping relationship; Sending the image information to the target remote terminal. The invention can accurately transmit the operation site information to the remote terminal, so as to obtain the help of the background management personnel, and greatly improves the field operation and maintenance overhaul efficiency.

The invention discloses an intelligent substation sampling loop fault determination method based on homologous data comparison. The method comprises a step of performing homologous data configuration,a step of collecting a signal packet, a step of parsing homologous data after receiving the signal packet, wherein the homologous data of the same data source includes first homologous data and second homologous data, a step of determining whether the amplitudes and phase angles of the first homologous data and the second homologous data are valid or not, and a step of calculating a comparison result of the first homologous data and the second homologous data according to a homologous data matching model, determining an alarm state, and determining whether a sampling loop is failed. Accordingto the method, the real-time monitoring and intelligent diagnosis of an intelligent substation sampling loop are facilitated, and the operation and maintenance efficiency is improved.

The invention discloses an online power cable water-intake monitoring device. The monitoring device is composed of a sensing optical fibre and a water absorbing expansion material; the inner layer isthe sensing optical fibre, and used as a sensor and used as a monitoring signal transmission line at the same time; the outer layer is the water absorbing expansion material; after absorbing water, the water absorbing expansion material generates expansion extrusion force on the inner layer, so that the sensing optical fibre in the inner layer is deformed; the signal propagation characteristics inthe optical fibre are changed; signals outgoing from the sensing optical fibre are analyzed; therefore, real-time monitoring on cable water intake can be realized; the monitoring device is flexible in whole material and good in plasticity, and is suitable for all kinds of power cables having related demands; the device is put and installed in the inner structure of the cable in a spirally windingmanner or in an axial straight manner along the cable; therefore, the monitoring device is tightly close to the inner structure of the cable; and the monitoring sensitivity is ensured.

The invention discloses a power transmission line strain insulator string state monitoring system and a monitoring device thereof. The system comprises a strain insulator string, a state monitoring device, a wireless receiving gateway, a background server and a display terminal. The two sides of the strain insulator string are respectively provided with an intelligent force measurement connectionfitting. The two intelligent force measurement connection fittings are respectively connected with the iron tower and the intelligent force measurement strain clamp. An inclination angle sensor is arranged on each intelligent force measurement connection fitting; the detection state parameters are sent to the wireless receiving gateway, the wireless receiving gateway transmits the data to the background server, and the background server performs comprehensive calculation on the tension, temperature and inclination angle data, analyzes the operation state of the strain insulator string, transmits the operation state to the display terminal and displays abnormal alarm information in real time. According to the monitoring system and the monitoring device thereof, the tension, inclination andtemperature monitoring devices are arranged at the key positions of the strain clamp insulator string, so that all-weather multi-parameter state monitoring of the running state of the strain clamp insulator string can be realized.

A pre-judgment analysis method for equipment defects comprises the following steps: completing fixed asset registration ledger, and classifying and marking equipment in the fixed asset registration ledger; an equipment ledger information input management module; screening and detecting equipment defects; screening out the state quantity of which the value of the effective detection efficiency is greater than a preset threshold value as a concerned state quantity; the processing module sets a plan according to the attention state quantity of each device in the device operation and maintenance management module; and the management monitoring module is used for managing equipment deviation and defects. Omnibearing machine account automatic monitoring and management are carried out on power grid equipment defects, online defect elimination assignment and auditing can be carried out, the equipment operation and maintenance defect elimination efficiency is improved, performance data of equipment are comprehensively monitored, accurate early warning of the equipment defects is achieved, accidents are effectively restrained, early discovery, early prevention and early processing can be carried out, and the system is high in practicability and easy to popularize. Therefore, further expansion of accidents is prevented, the effect of emergency rescue work is improved, and accident loss is reduced.

The invention relates to a street light site navigating method. A street light site information base and street light site navigating software are established, and the street light site navigating software is installed on a mobile phone of maintenance personnel, so that rapid positioning of a street light site can be realized, and rapid searching and synchronous update of data can be realized by making full use of advanced technical means. Not only can the street light site be positioned rapidly and efficiently, but also a communication maintenance management system can be normalized to form a novel paperless communication maintenance management pattern which can meet requirements of practical work, and the street light site navigating method has the advantages of increased operation and maintenance efficiencies of the street light site, reduced time cost, reduced error rate, economy and environmental protection, and is applicable to energetical popularization and application.

The invention provides a track circuit choke transformer work information real-time online monitoring system and a monitoring method. A working state and a work environment of a track circuit choke transformer are monitored in real-time and on-line modes. Multiple sensors and multiple information sources sense real-time work information of a choke transformer, and a monitoring result is transmitted to a monitoring and analysis device of a background through wired and wireless modes. A real-time work state and a work environment of the choke transformer can be visually presented, and a faulty device of the choke transformer can be accurately determined. Through data gathering, comparison, analysis, alarm and early warning, real-time online monitoring and health management of equipment are realized, efficiency of operation and maintenance is increased, and an operation and maintenance work decision is assisted so as to ensure safety and efficiency of railway transportation and production.

The invention, which relates to the field of auxiliary equipment for testing of an arc-suppression coil, provides a capacitor current generator for debugging an arc-suppression coil. A control panel (1) is arranged at the upper part of a chamber of a box body (10; a mounting plate (16) is arranged at the lower part of the chamber of the box body; and an output module and a control module are respectively arranged at the mounting plate to test a primary operation situation and a secondary control situation. Therefore, the blank that the compensation effect of the arc-suppression coil can not be tested currently can be filled and the operation, maintenance, and repairing efficiency of the arc-suppression coil is improved; and the capacitor current generator has the great popularization value. The capacitor current generator having advantages of simple structure and convenient operation is suitable for promotion and application in a large range.

The invention discloses a method for evaluating a use state of a high-speed turnout straight steel rail. The method comprises the following steps: firstly, obtaining turnout steel rail detection data required by state evaluation; then, according to the detection data, establishing a mathematical model for evaluating the use state of the turnout steel rail of the high-speed railway, wherein the mathematical model comprises a state basic scoring part and a disease score deduction part of each detection area; and giving different weights to different measurement items and different detection areas; and evaluating the established mathematical model for evaluating the use state of the high-speed rail turnout through continuously acquired data until the model can intuitively reflect the actual condition of the turnout. According to the method, scientific and effective statistical analysis and other methods are utilized to judge the passing mode of the train, comprehensive evaluation is carried out on the turnout state from multiple angles of wheel sets, frameworks and the whole section of the train body, accurate judgment on the turnout disease condition is achieved, and therefore maintenance of the turnout is scientifically guided, and a support is provided for converting the railway maintenance work from periodic maintenance to state maintenance.

The invention relates to a distribution automation communication equipment integrated fault locating system comprising a main station system, a transformer station and distribution network terminal equipment; the distribution automation communication fault locating system can integrate SDH, OLT and ONU distribution communication equipment so as to build a backbone fiber ring network; an ONU equipment line is utilized, and hand-in-hand dual-PON protection is realized, thus realizing one key location of the fault, improving the distribution automation communication operation and maintenance efficiency, preventing repeated fault locating works via the fault location, and improving the distribution network communication management level; in addition, the system is simple and easy to use, and can be operated by general maintenance personnel via simple training, thus reducing the distribution automation communication operation threshold.

The invention discloses a power cable water inlet sensing device based on a stress enhancement structure. The sensing device comprises three layers of structures, namely a sensing optical fiber, a water absorption expansion material and a stress enhancement structure, wherein the inner layer is the sensing optical fiber, the middle layer is the water absorption expansion material tightly wrappingthe inner-layer optical fiber, and the outer layer is the stress enhancement structure. The sensing device is arranged inside a cable, when water enters the cable, the moisture is absorbed by the middle-layer material and the middle-layer material is expanded, the extrusion effect on the inner-layer sensing optical fiber after water absorption and expansion is enhanced under the constraint actionof the outer-layer stress enhancement structure, the propagation characteristics of an optical signal in the optical fiber are changed, and on-line monitoring of inside water inlet condition of the cable is realized by analyzing the propagation characteristics of the signal of the optical fiber. The sensing device adopts a built-in mode, so that the sensitivity of monitoring and the accuracy of monitoring data are improved, and information support is provided for operation and maintenance of cable lines.

The invention discloses a wire measuring device and a measuring method thereof. A central controller is arranged in a shell and connected with a video module, a ranging module, a communication module,a storage module, a three-dimensional gyroscope and an input and output module, and one power supply module provides power to all above modules. The three-dimensional gyroscope is used for realizingaccurate spatial positioning, and angle measurement and cooperates with the ranging module to realize spatial distance measurement. The data transmission function is realized through the communicationmodule. According to the invention, the performance of electric power investigation design, operation and maintenance can be effectively improved, and the using performance is excellent.

The invention discloses a power transmission tower. The power transmission tower comprises a tower body, a composite cross arm, a connecting and rotating assembly and a limiting assembly, wherein theconnecting and rotating assembly is used for connecting the tower body with the composite cross arm and enabling the composite cross arm to rotate around a rotating axis relative to the tower body, and the limiting assembly is used for limiting the maximum rotating angle of the composite cross arm relative to the tower body. According to the power transmission tower provided by the invention, thepossibility of abnormal discharge in a normal operation condition and the probability of collision between the composite cross arm and the tower body can be reduced.

The invention provides a lightning arrester of a power transmission line. The lightning arrester of the power transmission line comprises a lightning arrester, wherein a lightning stroke signal acquisition unit is arranged in a grounding loop of the lightning arrester in series, the lightning stroke signal acquisition unit comprises a current sensor, the current sensor is connected with an MCU through an integrator and an A / D signal converter, the MCU is connected with a lightning stroke signal detection unit, and the lightning stroke signal detection unit is connected with a signal receivingend. The lightning arrester of the power transmission line has the characteristics of long-distance wireless transmission, no maintenance, no need of battery replacement and the like, remote information transmission and monitoring of lightning counting of the power transmission line can be realized, tower climbing for checking a mechanical lightning counter is avoided, operation and maintenance efficiency of the power transmission line is greatly improved, labor intensity of operation and maintenance personnel of the power transmission line is greatly reduced, a large amount of manpower and material resources are saved, and operation and maintenance cost of the line is saved.

The invention provides a method and system for improving the data quality of a sample data set, and the method comprises the steps: S1, obtaining and screening sample data, and obtaining high-quality sample data; judging the high-quality sample data, and judging whether the high-quality sample data is reserved or not; S2, training the reserved high-quality sample data to obtain a reference model; S3, judging whether the performance of the reference model meets a preset threshold value or not, and obtaining a standard model when the performance of the reference model meets the preset threshold value; S4, predicting the newest sample data through the standard model to obtain a standard prediction result; predicting the latest sample data through the reference model to obtain a reference prediction result; comparing to determine whether the standard model is reserved or not; and S5, when the standard model is reserved, judging that the latest sample data is high in quality. According to the method, the manual screening time is saved, the accuracy of determining that the data is high-quality data is ensured, and the effect of the model is improved.

The invention discloses a connecting and rotating assembly. The connecting and rotating assembly comprises a first sub-connecting and rotating assembly and a second sub-connecting and rotating assembly, wherein the first sub-connecting and rotating assembly comprises a base and a connecting and rotating piece, and the connecting and rotating piece is rotatably connected around a first axis relative to the base; the second sub-connecting and rotating assembly comprises a connecting support and a second connecting plate, and one end of the connecting support is fixedly connected with a second connecting plate. The connecting and rotating assembly can be applied to the power transmission tower, and is beneficial to releasing the tension of a cross arm and optimizing the stress conditions of the cross arm and a tower body.

The invention discloses a labor-saving wrench. The labor-saving wrench comprises a spline shaft and a sleeve, wherein the two ends of the spline shaft are separately in sleeving connection with a first connecting device and a second connecting device; the first connecting device can move up and down along the axis of the spline shaft; the second connecting device is fixedly connected with the spline shaft; the sleeve is arranged between the first connecting device and the second connecting device; one end, away from the spline shaft, of the first connecting device is equipped with a nut-shapedsleeve hole; and a reversing gear box is further arranged between the sleeve and the second connecting device. Compared with the prior art, the labor-saving wrench has the advantages that an existingdouble-hand one-way stressed operation mode is changed into a single-hand two-way stressed mode, so that operating and maintaining efficiency can be improved, operation labor intensity is relieved, and maintaining power-failure time of electric equipment is shortened.

The invention discloses a protection device state trend analysis method based on online monitoring data. The method comprises the following steps of obtaining SCD files, analyzing model data, establishing a mapping relation between a protection device MMS data set entry and protection device online monitoring data; sETTING DATA PROCESSING RELATED PARAMETERS, through data acquisition and storage, calculating a fitting slope K, a fitting slope Kpw and a fitting slope Kc, judging whether the online monitoring data of the protection device is abnormal or not, calculating an out-of-limit moment, and performing early warning output, so that the state trend analysis and intelligent early warning of the protection device can be realized, the fault hidden danger of the secondary system of the transformer substation can be found as early as possible, and the operation and maintenance overhaul efficiency is improved.

The invention discloses an intelligent switch feeder terminal with a traveling wave distance measurement function, which relates to the field of intelligent control and comprises a signal acquisition and processing module, a control quantity output module, a traveling wave module, a processing module, a display module and a superior communication module. The signal acquisition and processing module is used for converting measured voltage and current signals into digital signals and sending the digital signals to the processing module, and the voltage and current signals comprise line power frequency voltage and current signals and zero sequence voltage and current signals; and the traveling wave module is used for receiving the fault information sent by the processing module, then obtaining the traveling wave current wave head time at the fault moment, and sending the traveling wave current wave head time to the processing module. According to the method, the fault point can be accurately positioned, meanwhile, the accuracy of judging the single-phase earth fault is improved, operation and maintenance personnel are guided to patrol, and the time for searching and repairing the fault is shortened.