CN203455086U - High-voltage switch cabinet temperature remote monitoring system based on Zigbee technology - Google Patents

Abstract

The utility model relates to a high-voltage switch cabinet temperature remote monitoring system based on the Zigbee technology, which can display, store and transmit data in real time and remotely. The system comprises a digital temperature sensor, a wireless router, a data acquisition device, an industrial control computer, and a matched data processing module and a remote monitoring center. According to the high-voltage switch cabinet temperature remote monitoring system based on the Zigbee technology, the accurate temperature data acquisition function is mainly achieved, healthy monitoring can be carried out on the high-voltage switch cabinet according to the acquired corresponding data, the fault can be timely handled, and serious accidents can be prevented from happening.

Description

A remote temperature monitoring system for high voltage switchgear based on zigbee technology

technical field

The utility model relates to a high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, which belongs to the field of measurement and control.

Background technique

The safety and reliability of power equipment is an important part of ultra-large-scale power transmission and distribution and grid security, and the reliability of high-voltage switchgear has therefore received more attention. According to incomplete statistics, domestic electric power companies have experienced high-voltage switchgear failures to varying degrees, and caused certain economic losses directly and indirectly. Some of these failures come from the quality problems of the switchgear itself, and partly because of the lack of effective monitoring methods for the switchgear. Most high-voltage switchgear adopts a closed structure with poor heat dissipation conditions. During long-term operation, contacts, joints, and bus bar connections in the switch cabinet may suffer from excessive contact resistance or poor workmanship due to aging or other reasons. And heat, and long-term operation under high voltage, high current and full load conditions, resulting in increased heat accumulation, if effective monitoring measures are not taken for temperature rise, it will endanger the safe operation of electrical equipment. Especially when a short-circuit fault occurs in the power system, the strong current will aggravate the internal temperature rise of the electrical equipment, and the electrical insulation will be severely damaged. Seriously affected the safety and economic benefits of power production.

Utility model content

The main purpose of this utility model is to create a high-voltage switchgear temperature remote monitoring system based on zigbee technology, which is to accurately monitor the temperature of key measuring points in the high-voltage switchgear, judge the working conditions of the main components in the high-voltage switchgear, and avoid accidents. Improve the safety and economic efficiency of electricity production.

The technical scheme of the utility model to solve its technical problems in order to achieve the expected purpose is as follows. The high-voltage switchgear temperature remote monitoring system based on zigbee technology created by the utility model includes a digital temperature sensor, a wireless router, a data collector, an industrial computer, and supporting data processing module. Among them, the industrial computer and the data processing module are responsible for the calculation, processing and display of the entire data collection. The high voltage switchgear temperature monitoring system based on zigbee technology and the remote monitoring center are connected by communication CDMA or GPRS.

The utility model can also adopt the following technical measures to complete the detailed processing in order to achieve the expected purpose and solve its technical problems.

In the above-mentioned remote temperature monitoring system for high-voltage switchgear based on zigbee technology, the temperature sensor is a digital temperature sensor.

In the above-mentioned high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, the data collector and the industrial computer are connected by RS485 bus.

In the above-mentioned high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, the data collected by the data collector is handed over to the industrial computer for processing.

In the above-mentioned high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, the memory used by the data collector is a large-capacity hard disk.

In the above-mentioned high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, the digital temperature sensor and the data collector are connected through the RS232 interface.

The above-mentioned high-voltage switchgear temperature remote monitoring system based on zigbee technology, the wireless router is powered by a lithium battery

In the above-mentioned high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, the data collector is equipped with a GPS satellite synchronous clock timing system.

In the above-mentioned high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, the cabinet and the remote monitoring center are connected by CDMA or GPRS.

In the above-mentioned high-voltage switchgear temperature remote monitoring system based on zigbee technology, the interface set by the data processing module can display the current collection volume and the historical curve of these collection volumes in real time

In the above-mentioned high-voltage switchgear temperature remote monitoring system based on zigbee technology, the data processing module can easily modify the temperature alarm threshold of each monitoring point.

The high-voltage switch cabinet temperature remote monitoring system based on zigbee technology created by the utility model has the following good effects.

The utility model is a remote high-voltage switch cabinet temperature monitoring system based on zigbee technology, which can be used for state monitoring of high-voltage switch cabinets, and helps to improve the safe operation of substations.

The utility model is a high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, which has low power consumption, accurate measurement, multiple measurement points, intuitive debugging through the data processing module interface, and good human-computer interaction.

The utility model is a high-voltage switch cabinet temperature remote monitoring system based on zigbee technology. The digital temperature sensor adopted does not have data distortion caused by long wiring, and has excellent anti-electromagnetic interference ability.

The utility model is a high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, which has strong scalability and can be conveniently connected to any number of monitoring points when needed, with less wiring.

The utility model is a high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, which is small in size, reasonable in interface design, simple and safe in wiring, convenient to carry, and easy to use. It has industrial application value and is suitable for promotion and use in substations.

Description of drawings

The above and other aspects and advantages of the present invention will become more readily apparent by describing exemplary embodiments of the present invention in more detail with reference to the accompanying drawings, in which:

Fig. 1 is a block diagram of the composition of the high-voltage switch cabinet temperature remote monitoring system based on zigbee technology of the present invention.

Detailed ways

Hereinafter, the invention will now be described more fully with reference to the accompanying drawings, in which various embodiments are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to accompanying drawing 1, in conjunction with Fig. 1, the detailed wiring structural features of the high-voltage switchgear temperature remote monitoring system based on zigbee technology of the present invention will be described in detail.

The wireless router is powered by a lithium battery, and the data collector and industrial computer are powered by an AC220v/DC24v module.

Each temperature sensor connects the monitored temperature digital signal to each wireless routing node through the RS232 interface, and each wireless routing node automatically connects to a local area network, summarizes the signals, and transmits them to the data collector in real time wirelessly. The data processing module is responsible for displaying the real-time collection volume, and saving, packing and sending according to the setting regulations.

The data collector and industrial computer are connected through RS484.

This practical high-voltage switch cabinet temperature remote monitoring system based on zigbee technology, a data processing module and a GPRS module are installed in the industrial computer chassis. Each module is installed in the form of a standard guide rail slot, and an insulating cover is provided outside to ensure the safety of the operator.

The synchronous time service of the GPS clock can prevent the time deviation of the collected data and accurately synchronize with the grid in time. Prepare for later data processing.

The industrial computer and the remote computer are connected by CDMA or GPRS wireless communication, which facilitates remote reading of data, remote parameter setting, and remote monitoring.

The data processing module is set to pack data every ten minutes, and the industrial computer is set to run automatically when it is powered on. In this way, if there is a power failure, no manual on-site operation is required when the power is turned on again. The remote power-related data acquisition cabinet created by the utility model It started working normally again.

The utility model is a high-voltage switch cabinet temperature remote monitoring system based on zigbee technology. The cabinet is also equipped with a digital temperature sensor to detect the ambient temperature. If necessary, a heater or fan can be equipped on the socket reserved in the cabinet to ensure that each module normal operation.

The above descriptions are only examples of the present utility model, and are not intended to limit the present utility model. The utility model can have various suitable modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims (5)

1. the high-tension switch cabinet temperature remote monitoring system based on Zigbee-technology, is characterized in that comprising digital temperature sensor, wireless router, data acquisition unit, industrial computer and supporting data processing module; Described data acquisition unit is provided with RS485 serial communication interface, and temperature sensor is connected by RS232 interface with wireless router, utilizes RS485 bus to connect between data acquisition unit and industrial computer; Remote power relevant data acquisition cabinet is connected to remote monitoring center by the mode radio communication of CDMA or GPRS, to realize Long-distance Control, data download and relative parameters setting.

2. the high-tension switch cabinet temperature remote monitoring system based on Zigbee-technology according to claim 1, its feature is installed measuring point at described digital temperature sensor 72, and every 6 is one group, totally 12 groups.

3. the high-tension switch cabinet temperature remote monitoring system based on Zigbee-technology according to claim 1, is characterized in that described data acquisition unit sample frequency is 1HZ.

4. the high-tension switch cabinet temperature remote monitoring system based on Zigbee-technology according to claim 1, is characterized in that the storer that described data acquisition unit adopts is hard disk.

5. the high-tension switch cabinet temperature remote monitoring system based on Zigbee-technology according to claim 1, is characterized in that described data acquisition unit is with the time service of gps satellite synchronous clock, and satellite time transfer interval can arrange.

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