CN207487881U - Based on SF6 pressure monitor systems in wireless communication networks GIS - Google Patents

Abstract

The utility model belongs to the technical field of gas pressure monitoring in a gas-insulated metal-enclosed switchgear (GIS), in particular to an SF6 pressure monitoring system in a GIS based on a wireless communication network. The wireless pressure detection module is installed on the GIS, the signal output end of the wireless pressure detection module is connected to the wireless routing module through the Zigbee wireless network, the signal output end of the wireless routing module is connected to the wireless receiving module through the Zigbee wireless network, and the signal output end of the wireless receiving module The communication interface is connected with the GPRS module and the central monitoring system respectively, the data of the GPRS module is connected with the data input end of the network computer through the bound IP address, the data output end of the network computer is connected with the data input end of the data communication module, and the data output end of the data communication module Connect with mobile data terminal via mobile network. The utility model can remotely monitor the gas pressure state in the GIS in real time, and has high precision, good real-time performance and high safety factor.

Description

SF6 Pressure Monitoring System in GIS Based on Wireless Communication Network

technical field

The utility model belongs to the technical field of gas pressure monitoring in gas-insulated metal-enclosed switchgear (GIS), in particular to an SF6 pressure monitoring system in GIS based on a wireless communication network.

Background technique

GIS is to combine circuit breakers, isolating switches, current transformers, voltage transformers, lightning arresters and other substation equipment (except transformers) into a closed electrical appliance, which is filled with SF6 gas at a certain pressure. The pressure of SF6 gas in GIS is high. Once an accident occurs, it will cause incalculable economic losses to itself and the surrounding equipment, and it will also pose a great threat to the safety of the staff. Because GIS is generally installed outside, the internal pressure will drop due to SF6 gas leakage after long-term operation. In order to ensure the performance of GIS insulation and other aspects, the pressure of SF6 gas in GIS must be maintained within a certain range. Because SF6 will cause climate warming, and the high concentration will also endanger human life. Therefore, in order to ensure the safe operation of GIS and protect the environment, the pressure of SF6 gas in GIS must be monitored.

At present, most of the GIS pressure detection is carried out by manual on-site inspection. The high-pressure field operation has a high risk factor, a large monitoring workload, and low reliability. It is of great significance to reduce the workload, improve the reliability and safety of monitoring, and avoid safety production accidents.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the utility model proposes a SF6 pressure monitoring system based on a wireless communication network GIS. Its purpose is to provide a SF6 pressure monitoring system that can monitor the gas pressure in GIS remotely and in real time, reduce the workload of personnel, improve the reliability and safety of monitoring, and avoid safety production accidents.

The technical scheme that the utility model solves its technical problem adopts is:

Based on the SF6 pressure monitoring system in the wireless communication network GIS, the wireless pressure detection module is installed on the GIS. The signal output end of the wireless pressure detection module is connected with the wireless routing module through the Zigbee wireless network, and the signal output end of the wireless routing module is through Zigbee The wireless network is connected with the wireless receiving module, and the signal output end of the wireless receiving module is respectively connected with the GPRS module and the central monitoring system through the communication interface, and the data of the GPRS module is connected with the data input end of the network computer through the bound IP address. The data output end of the computer is connected with the data input end of the data communication module, and the data output end of the data communication module is connected with the mobile data terminal through the mobile network.

The wireless pressure detection module is connected by the output end of the reset unit with the reset signal input end of the single-chip microcomputer, the signal output end of the pressure transmitter is connected with the signal input end of the signal processing unit, and the signal output end of the signal processing unit is connected with the signal input end of the signal processing unit. The signal input terminals of the single-chip microcomputer are connected, the power output terminals of the multi-channel regulated power supply are respectively connected with the power input terminals of the pressure transmitter, the signal processing unit, the single-chip computer, and the wireless communication unit, and the signal output terminals of the single-chip microcomputer are connected with the wireless communication unit, The signal input end of the display unit is connected, and the output end of the switch is connected with the signal input end of the single-chip microcomputer.

The wireless pressure detection module is used to realize GIS pressure signal acquisition and data transmission, and the multi-channel regulated power supply outputs multiple DC voltages to provide working power for the pressure transmitter, signal processing unit, single-chip microcomputer, and wireless communication unit. The communication unit performs data transmission through the serial port, and the wireless communication unit uses the Zigbee wireless network to realize wireless data transmission with the wireless routing module.

Advantage and beneficial effect of the present utility model are:

The utility model utilizes the wireless communication network and pressure digitization testing technology, can remotely monitor the gas pressure state in the GIS in real time, replaces the traditional manual on-site measurement, has the advantages of high precision, good real-time performance, high safety factor, etc., and at the same time It can greatly reduce the workload of operators, improve the reliability and safety of monitoring, and avoid safety production accidents, which is of great significance.

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but is not limited by this embodiment.

Description of drawings

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is a schematic structural diagram of the wireless pressure detection module in the utility model.

In the figure: wireless pressure detection module 1, wireless routing module 2, wireless receiving module 3, communication interface 4, GRRS module 5, central monitoring system 6, network computer 7, data communication module 8, mobile data terminal 9,

Reset unit 10 , pressure transmitter 11 , multi-channel regulated power supply 12 , single chip microcomputer 13 , wireless communication unit 14 , display unit 15 , signal processing unit 16 and switch 17 .

Detailed ways

The utility model is a SF6 pressure monitoring system based on the wireless communication network GIS, as shown in Fig. 1, which is a simplified diagram of the system structure of the utility model. It includes a wireless pressure detection module 1, a wireless routing module 2, a wireless receiving module 3, a communication interface 4, a GRRS module 5, a central monitoring system 6, a network computer 7, a data communication module 8 and a mobile data terminal 9. Wherein the wireless pressure detection module 1 is installed on the GIS, the signal output end of the wireless pressure detection module 1 is connected with the wireless routing module 2 through the Zigbee wireless network, and the signal output end of the wireless routing module 2 is connected with the wireless receiving module 3 through the Zigbee wireless network Connect, the signal output end of wireless receiving module 3 is connected with GPRS module 5 and central monitoring system 6 respectively through communication interface 4, the data of GPRS module 5 is connected with the data input end of network computer 7 through binding IP address, network computer The data output end of 7 is connected with the data input end of the data communication module 8, and the data output end of the data communication module 8 is connected with the mobile data terminal 9 through the mobile network.

The Zigbee wireless network is a low-power LAN protocol based on the IEEE802.15.4 standard.

The utility model is a monitoring method based on the SF6 pressure monitoring system in the wireless communication network GIS as follows: the SF6 pressure monitoring system in the wireless communication network GIS realizes multiple GIS devices and multiple GIS devices through a plurality of wireless pressure detection modules 1 Point pressure real-time monitoring. The communication method of the monitoring system adopts a tree-shaped network topology. The pressure data collected by the wireless pressure detection module 1 is transmitted to the mobile data terminal through the Zigbee wireless network, the RS232 central monitoring system 6 or through the Zigbee wireless network, the RS232 central monitoring system 6 and the IP address. 9. According to the computer display interface of the central monitoring system 6 or the mobile data terminal, that is, the special data monitoring mobile phone data, the operation and maintenance personnel can understand the SF6 gas pressure inside the GIS, and give an alarm when the pressure is abnormal, so as to grasp the operation status of the GIS equipment in real time and ensure the stable operation of the power system .

The special-purpose data monitoring mobile phone refers to a smart mobile phone based on the Android operating system. The APP software program is installed on the mobile phone, and the pressure of SF6 in the GIS is remotely monitored through the software data.

As shown in Fig. 2, Fig. 2 is a schematic structural diagram of the wireless pressure detection module in the present invention. The wireless pressure detection module 1 is composed of a reset unit 10, a pressure transmitter 11, a multi-channel regulated power supply 12, a single-chip microcomputer 13, a wireless communication unit 14, a display unit 15, a signal processing unit 16, and a switch 17, wherein the reset unit 10 The output end of the pressure transmitter is connected with the reset signal input end of the single-chip microcomputer 13, the signal output end of the pressure transmitter 11 is connected with the signal input end of the signal processing unit 16, and the signal output end of the signal processing unit 16 is connected with the signal input end of the single-chip microcomputer 13 The power output terminals of the multi-channel regulated power supply 12 are respectively connected with the power input terminals of the pressure transmitter 11, the signal processing unit 16, the single-chip microcomputer 13, and the wireless communication unit 14, and the signal output terminals of the single-chip microcomputer 13 are connected with the wireless communication unit 14. The signal input end of the display unit 15 is connected, and the output end of the switch 17 is connected with the signal input end of the single-chip microcomputer 13 .

The wireless pressure detection module 1 is used to realize GIS pressure signal acquisition and data transmission, and the multi-channel regulated power supply 12 outputs multiple DC voltages to provide pressure transmitter 11, signal processing unit 16, single-chip microcomputer 13, and wireless communication unit 14. The working power supply, the single chip microcomputer 13 and the wireless communication unit 14 perform data transmission through the serial port, and the wireless communication unit 14 utilizes the Zigbee wireless network to realize the wireless transmission of data with the wireless routing module 2 .

Claims (3)

1. Based on the SF6 pressure monitoring system in the wireless communication network GIS, it is characterized in that: the wireless pressure detection module (1) is installed on the GIS, and the signal output terminal of the wireless pressure detection module (1) passes through the Zigbee wireless network and the wireless routing module ( 2) are connected, the signal output end of the wireless routing module (2) is connected to the wireless receiving module (3) through the Zigbee wireless network, and the signal output end of the wireless receiving module (3) is connected to the GPRS module ( 5) It is connected with the central monitoring system (6), the data of the GPRS module (5) is connected with the data input end of the network computer (7) through the bound IP address, and the data output end of the network computer (7) is connected with the data communication module The data input terminals of (8) are connected, and the data output terminals of the data communication module (8) are connected with the mobile data terminal (9) through the mobile network. 2. The SF6 pressure monitoring system based on wireless communication network GIS according to claim 1, characterized in that: the wireless pressure detection module (1) is reset by the output terminal of the reset unit (10) and the single chip microcomputer (13). The signal input ends are connected, the signal output end of the pressure transmitter (11) is connected with the signal input end of the signal processing unit (16), the signal output end of the signal processing unit (16) is connected with the signal input end of the single chip microcomputer (13) The power output terminals of the multi-channel regulated power supply (12) are respectively connected to the power input terminals of the pressure transmitter (11), the signal processing unit (16), the single-chip microcomputer (13), and the wireless communication unit (14), The signal output end of the single-chip microcomputer (13) is connected with the signal input end of the wireless communication unit (14) and the display unit (15), and the output end of the switch (17) is connected with the signal input end of the single-chip microcomputer (13). 3. The SF6 pressure monitoring system based on wireless communication network GIS according to claim 1, characterized in that: the wireless pressure detection module (1) is used to realize GIS pressure signal collection and data transmission, and the multi-channel regulated power supply ( 12) Output multiple DC voltages to provide working power for the pressure transmitter (11), signal processing unit (16), single-chip microcomputer (13), wireless communication unit (14), single-chip microcomputer (13) and wireless communication unit (14) Data transmission is performed through the serial port, and the wireless communication unit (14) realizes the wireless transmission of data with the wireless routing module (2) by using the Zigbee wireless network.