Electric power facility patrol positioning system and method

Abstract

The invention discloses a patrol positioning system for electric power facilities. The patrol positioning system comprises a two-dimensional code label, a handheld patrol terminal and a back-end operation and maintenance system, the two-dimensional code labels are fixed to electric power facility bodies or nearby the electric power facility bodies and contain information such as the installation positions, names, models and numbers of the electric power facilities. The handheld patrol terminal comprises a camera, an operation display screen, a communication module, a storage module, a positioning module, a microprocessor module and a power supply module; a power grid system where the patrolled electric power facilities are located is divided into a plurality of power supply grids, and patrolling personnel arrive at the electric power facilities in the patrolled grids according to a patrolling plan, send real-time positioning positions to a remote terminal, scan two-dimensional codes of the patrolled electric power facilities, determine the latest patrolling time of the patrolled electric power facilities and send the patrolled electric power facilities to the remote terminal. After the inspection is finished, the inspection result of the grid is packaged and sent to the remote terminal; according to the invention, the inspection personnel can check the leakage and fill the vacancy, so that the remote personnel can timely master the on-site electric power facility inspection condition and whether the inspection personnel are in the on-duty state, the problem of daily leakage inspection or false inspection information filling by personnel can be solved, and the electric power facilities can be inspected according to plans.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power system inspection, and particularly relates to a power facility inspection positioning system and method. BACKGROUND

[0002] With the increasing dependence of the national economy on electricity, the scale of the power grid system is increasing, and at the same time, the number of power facilities for power conversion, transmission and distribution is increasing rapidly. In order to ensure the reliable operation of the power grid system, daily inspection of numerous power facilities is a very important work in the field of power systems.

[0003] Currently, daily inspection of power facilities is mainly carried out by personnel on site, and in some cases, unmanned aerial vehicles are used, but due to the endurance of the unmanned aerial vehicles, personnel need to approach the power facilities. Due to the large number of power facilities in the power grid system and the large number of types, especially some facilities are deployed in remote locations such as towns and mountainous areas, making it difficult for the limited number of inspection personnel and inspection equipment to meet the normal inspection needs of all power facilities, and some power facilities may be missed or the inspection personnel may not be in place, which may pose a risk to the reliable power supply of the power grid system.

[0004] In the prior art, a Chinese invention patent with publication number CN 106408209A discloses a power positioning line inspection detection system and method, an RFID electronic tag is arranged on a tower of a to-be-measured power transmission line; RFID electronic tag information is obtained to obtain the name, number and geographical position of the tower; a video image signal of the power transmission line connected to the tower is obtained, and the video image signal is transmitted to a monitoring center in a video stream manner; the video frame is compared with a preset power transmission line image, if the comparison result exceeds the preset range, it is judged that the power transmission line is abnormal, the alarm indicator light of the monitoring center displays red light, and the power transmission line abnormal information, the geographical position information of the power transmission line and the alarm time are stored. The method of the present application does not need line maintenance personnel to carry out on-site line inspection, and can automatically analyze and judge the abnormal condition of the power transmission line in the monitoring center, find out the fault point, and then send the power transmission line abnormal condition to the line maintenance personnel in the form of mobile phone short message, and the line maintenance personnel can carry out maintenance. However, the system and method disclosed in CN 106408209A are mainly used for processing of power transmission line abnormalities, and cannot determine whether the daily inspection personnel have carried out inspection according to the plan.

[0005] In the prior art, CN203298775U discloses a power positioning monitoring device, which consists of a solar panel, a battery, a connecting circuit, a positioning device, a data conversion circuit, a communication terminal, and a device housing. The battery, connecting circuit, positioning device, data conversion circuit, and communication terminal are housed inside the device housing. The solar panel is located at the top of the device, and the device housing is fixed to the upper part of the power equipment. The solar panel is connected to the battery and the connecting circuit, which is connected to the positioning device. The positioning device is connected to the communication terminal via the data conversion circuit. The advantages of this patent are low cost and timely and accurate data. However, the power positioning monitoring device disclosed in CN203298775U mainly monitors for damage, relocation, and theft of power equipment, and does not have the capability to monitor whether power equipment has been missed during inspections or to locate personnel's inspection routes.

[0006] Furthermore, the solutions provided in CN 106408209A and CN203298775U mainly monitor the location of fixed-deployment equipment. They cannot determine whether personnel reach the inspected power facilities during normal patrols, solve the problem of missed inspections of inspected power facilities, or provide statistical data on the patrol time and frequency of the inspected equipment.

[0007] To solve the above problems, it is necessary to develop a power facility inspection and positioning system and method. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a power facility inspection and positioning system and method. It mainly locates the position of the inspection personnel during daily inspections of power facilities, statistically analyzes and classifies the inspection status of power facilities, and alarms for equipment that has been missed during a certain period. This solves the problem that it is difficult for inspection personnel to know the inspection status of power facilities in a timely manner and avoids unexpected situations such as missed inspections of power facilities or false reporting of inspection information by personnel.

[0009] The objective of this invention is achieved as follows: In a first aspect, a power facility inspection and positioning system is provided, comprising a QR code label, a handheld inspection terminal, and a back-end operation and maintenance system;

[0010] The QR code label is fixed to or near each power facility, and the QR code contains the corresponding power facility information, including installation location, name, model, and serial number.

[0011] The handheld patrol terminal includes a camera, an operation display screen, a communication module, a storage module, a positioning module, a microprocessor module, and a power module;

[0012] The camera is used to scan the QR codes on power facilities to obtain the corresponding power facility information;

[0013] The operation display screen is used to set parameters, trigger commands, and query and browse information via touch.

[0014] The communication module includes 4G / 5G wireless communication and USB wired communication;

[0015] The storage module uses a 1TB SSD solid-state drive;

[0016] The positioning module integrates BeiDou positioning and / or GPS positioning;

[0017] The microprocessor module uses an Arduino processor to analyze and classify the acquired power facility information, and associates the scanned power facility information with the equipment information in the inspection plan;

[0018] The backend operation and maintenance system is used to respond to the requests of the handheld inspection terminal and monitor the inspection status and results in real time.

[0019] Furthermore, the operation display screen adopts a 320×240 color display screen and a full Chinese Windows-like menu mode.

[0020] Furthermore, before conducting the inspection, the handheld inspection terminal sends a request for inspection to the backend operation and maintenance system. After receiving the request for inspection, the backend operation and maintenance system sends an inspection plan to the handheld inspection terminal via a 4G / 5G network. The inspection plan contains information on all power facilities that need to be inspected within a specified time period, including their location, geographical location, name, model, number, and inspection items.

[0021] Furthermore, according to the inspection plan, the inspection personnel arrive at the power facility to be inspected on time, scan the QR code on the power facility with the handheld inspection terminal, and after the microprocessor module analyzes and confirms the association, they can carry out inspections of various items on the power facility.

[0022] Furthermore, after the inspection is completed, the inspection personnel will use the handheld inspection terminal to send the inspection results of all power facilities in the inspection plan to the remote operation and maintenance system via the 4G / 5G network.

[0023] Furthermore, the positioning module preferably uses BeiDou positioning.

[0024] Furthermore, when the handheld patrol terminal performs positioning, the calculation formula for BeiDou positioning is as follows:

[0025] The handheld inspection terminal is located at (x, y, z), and the positions of the four satellites it observes are (x1, y1, z1), (x2, y2, z2), (x3, y3, z3), and (x4, y4, z4). The distances between the handheld inspection terminal and the satellites are measured using ranging codes or carrier phase measurements, and are ρ1, ρ2, ρ3, and ρ4, respectively. The equations are constructed as follows:

[0026] ;

[0027] In the formula, t is the clock difference between the handheld patrol terminal and the satellite clock; c is the speed of light;

[0028] The position coordinates (x, y, z) of the handheld inspection terminal can be obtained by linearizing and solving the above system of equations using Matlab software.

[0029] Furthermore, the remote operation and maintenance system is installed on a remote terminal, including a dedicated terminal and a mobile phone.

[0030] Secondly, a method for inspecting and locating power facilities is provided, applied to the power facility inspection and locating system described in any of the preceding claims, comprising the following steps:

[0031] S1: The power grid system where the power facilities to be inspected are located is divided into multiple power supply grids according to main roads, administrative management, and load levels;

[0032] S2: Install QR code labels on the inspected power facilities within each grid;

[0033] S3: The inspection personnel arrive at the power facilities within the inspected grid according to the inspection plan sent by the backend operation and maintenance system, activate the positioning function of the handheld inspection terminal, and send the real-time location of the inspection personnel to the backend operation and maintenance system through the handheld inspection terminal;

[0034] S4: Use the camera installed on the handheld inspection terminal to scan the QR code of the inspected power facility. The handheld inspection terminal associates the QR code information with the received information of the inspected power facility. After successful association, the handheld inspection terminal automatically marks the most recent inspection time and the items that need to be inspected for the inspected power facility.

[0035] S5: During the inspection, the backend operation and maintenance system can retrieve the location information of the power facilities and personnel in the handheld inspection terminal during the inspection operation, so as to realize the real-time positioning and monitoring of the inspection personnel and the inspected power facilities.

[0036] S6: After the time period specified in the inspection plan ends, the handheld inspection terminal will classify and display the numbers, geographical locations, inspection times, and whether the power facilities included in the inspection plan are inspected, and store them in a package.

[0037] S7: Inspectors use the handheld inspection terminal to send the packaged inspection results of the power facilities to the remote operation and maintenance system.

[0038] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0039] 1. This invention proposes installing QR codes with information such as serial number, model and geographical location on power facilities. Inspection personnel can scan the QR code with a handheld inspection terminal to determine whether the power facility has been inspected and the relevant inspection items based on the information association. This can solve the problem of missed inspections or false inspection information submitted by personnel, and ensure that power facilities can be inspected according to plan.

[0040] 2. The handheld inspection terminal of the present invention can classify and display information such as the inspection date, whether it has been inspected, the number of inspections, and the inspection items of power facilities according to the divided power supply grid, and can also query historical inspection information, which helps inspection personnel to identify and fill gaps and avoid the occurrence of missed inspections of power facilities.

[0041] 3. The handheld inspection terminal of the present invention can transmit the inspection status of power facilities to a remote terminal via a 4G / 5G network. At the same time, it can receive calls from remote personnel in real time during the inspection operation to check the location of the inspection personnel and the inspection status of the power facilities. This enables remote personnel to keep abreast of the on-site inspection status of the power facilities and whether the inspection personnel are on duty, thereby ensuring that the power facilities are inspected as planned. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the power supply grid division according to the present invention.

[0043] Figure 2 This is a schematic diagram of the QR code of the present invention.

[0044] Figure 3 This is a three-dimensional structural diagram of the handheld inspection terminal of the present invention.

[0045] Figure 4 This is a schematic diagram illustrating the classification and display of power facility inspection information according to the present invention.

[0046] Figure 5 This is a schematic diagram of information interaction in the patrol positioning system of the present invention.

[0047] Figure 6 This is a flowchart of the inspection and positioning method of the present invention.

[0048] In the diagram: 1. Control panel; 2. Camera; 3. Running light; 4. Alarm light; 5. Operation display screen; 6. Power switch; 7. USB communication port; 8. Charging port; 9. Terminal housing. Detailed Implementation

[0049] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0050] Firstly, such as Figure 1 , Figure 2 Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides a power facility inspection and positioning system, including a QR code tag, a handheld inspection terminal, and a back-end operation and maintenance system.

[0051] The QR code label is fixed to or near each power facility. The QR code contains information about the corresponding power facility, including its installation location, name, model, and serial number.

[0052] The handheld patrol terminal includes a camera 2, an operation display screen 5, a communication module, a storage module, a positioning module, a microprocessor module, and a power module. The camera 2 is installed at the front end of the terminal housing 9. The communication module, storage module, positioning module, microprocessor module, and power module are located inside the terminal housing 9. The operation panel 1 covers the upper end of the terminal housing 9. The operation panel 1 is equipped with a running light 3, an alarm light 4, an operation display screen 5, a power switch 6, a USB communication port 7, and a charging port 9.

[0053] Camera 2 is used to scan the QR codes on power facilities to obtain the corresponding power facility information.

[0054] The operation display screen 5 is used to set parameters, trigger commands, query and browse information via touch. The operation display screen 5 adopts a 320×240 color display screen and a full Chinese Windows-like menu mode.

[0055] The communication module includes 4G / 5G wireless communication and USB wired communication. The 4G / 5G wireless communication is mainly used for communication between the handheld inspection terminal and the remote terminal, while the USB wired communication is mainly used for exporting data and software upgrades, such as exporting to a computer host without a wireless communication module and upgrading the software of the handheld inspection terminal as needed.

[0056] The storage module uses a 1TB SSD solid-state drive.

[0057] The positioning module integrates BeiDou positioning and / or GPS positioning, with BeiDou positioning being preferred.

[0058] The microprocessor module uses an Arduino processor to analyze and classify the acquired power facility information, and associates the scanned power facility information with the equipment information in the inspection plan.

[0059] The backend operation and maintenance system is used to respond to requests from handheld inspection terminals and monitor the inspection status and results in real time.

[0060] Before conducting an inspection, the handheld inspection terminal sends an inspection request instruction to the backend operation and maintenance system. After receiving the inspection request instruction, the backend operation and maintenance system sends an inspection plan to the handheld inspection terminal via a 4G / 5G network. The inspection plan contains information on all power facilities that need to be inspected within a specified time period, including their location, geographical location, name, model, number, and inspection items.

[0061] According to the inspection plan, the inspection personnel arrive at the power facility to be inspected on time, scan the QR code on the power facility with a handheld inspection terminal, and after the microprocessor module analyzes and confirms the association, they can carry out the inspection of various items of the power facility.

[0062] After the inspection, the inspection personnel used handheld inspection terminals to send the inspection results of all power facilities in the inspection plan to the remote operation and maintenance system via 4G / 5G network. The remote operation and maintenance system is installed on remote terminals, including dedicated terminals and mobile phones.

[0063] When using a handheld patrol terminal for positioning, the calculation formula for BeiDou positioning is as follows:

[0064] The handheld inspection terminal is located at (x, y, z), and the positions of the four observed satellites are (x1, y1, z1), (x2, y2, z2), (x3, y3, z3), and (x4, y4, z4). The distances between the handheld inspection terminal and the satellites are measured using ranging codes or carrier phase measurements, and are ρ1, ρ2, ρ3, and ρ4, respectively. The equations are constructed as follows:

[0065] ;

[0066] In the formula, t is the clock difference between the handheld patrol terminal's clock and the satellite clock; c is the speed of light;

[0067] The position coordinates (x, y, z) of the handheld inspection terminal can be obtained by linearizing and solving the above system of equations using Matlab software.

[0068] Secondly, such as Figure 6 As shown, the present invention provides a method for locating and inspecting power facilities, applied to the power facility inspection and positioning system of the present invention, comprising the following steps:

[0069] S1: The power grid system where the power facilities to be inspected are located is divided into n power supply grids according to main roads, administrative management, and load level;

[0070] S2: A QR code label for each grid containing information such as the installation location, name, model, and serial number of the inspected power facilities;

[0071] S3: The inspection personnel arrive at the power facilities in the inspected grid i (i=1,2,……,n) according to the inspection plan sent by the backend operation and maintenance system, activate the positioning function of the handheld inspection terminal, and send the real-time location of the inspection personnel to the backend operation and maintenance system through the handheld inspection terminal;

[0072] S4: Use the camera installed on the handheld inspection terminal to scan the QR code of the inspected power facility. The handheld inspection terminal associates the QR code information with the received information of the inspected power facility. After successful association, the handheld inspection terminal automatically marks the most recent inspection time and the items that need to be inspected for the inspected power facility.

[0073] S5: During the inspection, the backend operation and maintenance system can retrieve information such as the location of the power facilities and personnel in the handheld inspection terminal during the inspection operation, so as to realize the real-time positioning and monitoring of the inspection personnel and the inspected power facilities.

[0074] S6: After the entire grid i inspection plan is completed, the handheld inspection terminal will classify and display information such as the number, geographical location, inspection time, and whether the power facilities included in the inspection within the grid i are inspected, and then package and store it.

[0075] S7: Inspectors use the handheld inspection terminal to send the packaged inspection results of the power facilities to the remote operation and maintenance system.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electric utility patrol positioning system, characterized by: The application relates to a two-dimensional code label, a handheld inspection terminal and a backend operation and maintenance system. The two-dimensional code label is fixed on each power facility body or nearby, and the two-dimensional code carried by the two-dimensional code label contains corresponding power facility information, including installation position, name, model and number information. The handheld inspection terminal comprises a camera, an operation display screen, a communication module, a storage module, a positioning module, a microprocessor module and a power module. The camera is used for scanning the two-dimensional code on the power facility to obtain corresponding power facility information. The operation display screen is used for setting parameters, triggering instructions and inquiring and browsing information through touch. The communication module comprises 4G / 5G wireless communication and USB wired communication. The storage module adopts a 1T SSD solid state disk. The positioning module integrates Beidou positioning and / or GPS positioning. The microprocessor module adopts an Arduino processor, analyzes and classifies the obtained power facility information, and associates the scanned power facility information with the equipment information in the inspection plan. The backend operation and maintenance system is used for responding to the request of the handheld inspection terminal and monitoring the inspection state and result in real time.

2. The electric utility locating system of claim 1, wherein: The operation display screen adopts a 320*240 color display screen and a full Chinese Windows menu mode.

3. The electric utility locating system of claim 1, wherein: Before the handheld inspection terminal inspects, the handheld inspection terminal sends a request inspection instruction to the backend operation and maintenance system, the backend operation and maintenance system sends an inspection plan to the handheld inspection terminal through a 4G / 5G network after receiving the request inspection instruction, and the inspection plan is all power facility information needing to be inspected in a specified period, including a region, a geographical position, a name, a model, a number and an inspection item.

4. A power utility patrol positioning system according to claim 3, characterised in that: According to the inspection plan, an inspector arrives at the inspected power facility in time, scans the two-dimensional code on the inspected power facility through the handheld inspection terminal, and can carry out each item inspection on the power facility after the microprocessor module analyzes and confirms the association.

5. The electric utility locating system of claim 3, wherein: After the inspection, the inspector sends the inspection result of all power facilities in the inspection plan to the remote operation and maintenance system through the handheld inspection terminal and a 4G / 5G network.

6. The electric utility locating system of claim 1, wherein: The positioning module preferably adopts Beidou positioning.

7. The electric utility locating system of claim 1, wherein: When the handheld inspection terminal is positioned, the calculation formula of Beidou positioning is as follows: The position of the handheld inspection terminal is (x, y, z), the positions of four observed satellites are (x1, y1, z1), (x2, y2, z2), (x3, y3, z3) and (x4, y4, z4), the distances between the handheld inspection terminal and the satellites are measured through a ranging code or a carrier phase, and are rho1, rho2, rho3 and rho4 respectively, and the equation is constructed as follows: ； In the formula, t is the clock difference of the handheld inspection terminal relative to the satellite clock, and c is the speed of light. The position coordinates (x, y, z) of the handheld inspection terminal can be obtained by linearizing the above equation group by using Matlab software.

8. The electric utility locating system of claim 1, wherein: The remote operation and maintenance system is installed on a remote terminal and comprises a special terminal and a mobile phone.

9. A method for positioning a power facility inspection vehicle applied to the power facility inspection positioning system according to any one of claims 1 to 8, characterized by, The application comprises the following steps: S1: dividing the power grid system of the inspected power facility into multiple power supply grids according to main roads, administrative management and load levels. S2: Install a two-dimensional code label on each grid within the power facility to be inspected; S3: The inspection personnel arrive at the power facility to be inspected within the grid according to the inspection plan sent by the back-end operation and maintenance system, turn on the positioning function of the handheld inspection terminal, and send the real-time positioning location of the inspection personnel to the back-end operation and maintenance system through the handheld inspection terminal; S4: Use the camera installed on the handheld inspection terminal to scan the two-dimensional code of the power facility to be inspected, associate the two-dimensional code information with the received power facility information to be inspected, and after successful association, the handheld inspection terminal automatically labels the latest inspection time of the power facility to be inspected and the items that need to be inspected; S5: During the inspection, the back-end operation and maintenance system can call the power facility inspection and personnel location information in the handheld inspection terminal during the inspection process, realizing real-time positioning and monitoring of the inspection personnel and the power facility to be inspected; S6: After the time period specified in the inspection plan ends, the handheld inspection terminal classifies and displays all the power facility numbers, geographic locations, inspection times, and whether the information is inspected in the inspection plan, and stores them in a package; S7: The inspection personnel send the packaged power facility inspection results to the remote operation and maintenance system through the handheld inspection terminal.

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