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1. The overall function of RFID power grid inspection system
Power companies are always looking for new ways to reduce costs, improve efficiency and profit, and are constantly striving to improve service reliability to ensure customer satisfaction.The industrial-grade PDA equipment provided by Beijing Baoxun Electronics Co., Ltd. adopts the current advancedRFIDRadio frequency identification technology + GPS/GPSONE (satellite positioning system) + GPRS/CDMA technology + barcode scanning technology + camera technology, developed a patrol inspection management system for the power industry system, which fully considers the convenience of users and the system is simple to operate. Real-time information transmission, suitable for enterprises, independent substations and centralized control stations and other users to customize and manage the equipment information, inspection tasks, inspection lines, inspection points and inspection items involved in power inspections, and achieve inspections in place Standardization of control and defect management, thereby improving the management level of power equipment.
Second, the composition of the inspection system
The mobile inspection system is divided into two parts:
1. Client: The client is installed on the PDA
2. Server: The server is installed on the PC
Three, working principle
First, input the longitude and latitude of each base tower and other related data of all the lines that need to be patrolled into the server and handheld computer.GPSThe global positioning system locates the latitude and longitude of the patrolled tower to see if it is consistent with the original input data. At the same time, the patrolled information is recorded in the handheld computer. After the patrol or on the spot, it will be recorded through the GPRS/CDMA network. The information is entered into the server and comparative analysis is performed. In this way, abnormal conditions in line operation can be discovered in time, so that they can be dealt with in the shortest time, thereby ensuring line safety. Since the data collected during the inspection needs to be input into the server for comparative analysis, it can effectively promote the improvement of the line inspection quality and ensure the arrival rate of the line inspection personnel.
Fourth, the work process
1. Preparation
According to the needs of the inspection work, arrange the inspection work on the PC, and plan the inspection line, work content and key points. And wirelessly download all work-related information to the PDA.
2. Arrive at work point
PDA arranges according to the work content, combines GIS map information, uses GPS system, guides the staff to arrive at the work point.
3. Carry out a certain point of work
After reaching a certain point, the work sheet on the handheld computer can be opened to perform inspection and data collection work.
If it does not reach a specific range, data cannot be recorded and collected. This function can be realized by relying on the following two points:
A. After GPS point positioning, activate the corresponding task list.
B. The location point device has a built-in RFID electronic tag, and the task list is activated after identification with a handheld terminal; this method is easy to prevent counterfeiting and copy.
C. The location point equipment is marked with an encrypted bar code. After the handheld terminal reads the bar code, the activation task list is not reproducible due to the combination of GPS positioning information.
4. The next point of work to complete the task
5. Upload the data to the back-end server through the wireless network GPRS/CDMA, and communicate through the network cluster intercom
6. Feedback
The back-end server will process the feedback information and notify the staff as the basis for solving the problem and the next work.
Five, PDA function description
1. Client function
1) Query equipment attributes: Users can query the detailed attributes of the equipment according to the line name and tower number.
2) Confirm user identity: The user needs to enter the login password to confirm the user identity.
3) Download user inspection tasks: download user inspection tasks and related materials from the server through GSM/GPRS/CDMA/EDGE wireless communication according to the user’s login identity in the system.
4) Provide equipment optional defect codes: According to the different equipment currently inspected, the corresponding common defect codes are given. The user only needs to select the code, and the corresponding defect can be recorded in the database.
5) Handwritten record defects: For special defects, the system provides handwritten records as an auxiliary means.
6) Supervision in place: Using the global positioning system, you can reliably confirm whether the user is in place.
7) Configuration management: Provide administrators with access to the management system. For example, update user information, add new device information, etc.
2. Server-side functions
The server side is mainly used to connect to the database, manage data, modify passwords, and complete the upload/download of data between the server and the PDA, which can satisfy any computer on the LAN with the system to query and analyze the data of the line patrol service .
1) Line patrol business management: formulate line patrol plans, develop corresponding line patrol plans for different users, and generate corresponding equipment data.
2) Write back the completion of the line inspection task: upload the user’s current inspection result to the server database.
3) In-place inspection supervision statistics: According to the pole tower coordinates and inspection coordinates, inspection time, statistics of inspection in place.
4) Defect management: Check the defect status of the line. Including newly added defect records, defect elimination situation.
5) Data download: According to different line patrol personnel, download the line patrol plan of this person and the related line, tower attributes, defect situation and other data of this plan to the PDA.
6) Data upload: upload the data on the PDA to the server via GSM/GPRS, including the completion of line inspection, defect status, GPS path, etc.
Six, functional characteristics
1. The high degree of integration of the system
2. Customizable hardware platform
3. Open software platform
4. High reliability of the system
5. High-performance embedded GPS
6. High-speed GSM/GPRS transmission, the equipment supports mobile TD-WCDMA, Unicom WCDMA, Telecom EVDO.
7. Reliable power supply solution
8. Large-capacity data storage
9. Handwriting input and shortcut keys
10. Fast and diverse external interfaces
11. Rich business assistant functions
Seven, program benefits
1. The income improves the efficiency of the inspection line and improves the management of the inspection work;
2. Reduce labor and entry costs, reduce work intensity and improve work efficiency;
3. Improve the level of inspection business and defect management;
4. Cooperate with the informatization construction of the power system starting from the collection of basic data
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