Multipoint temperature monitoring device and method of high-voltage switch cabinet

Abstract

The invention discloses a multipoint temperature monitoring device and method of a high-voltage switch cabinet and relates to the field of automatic control monitoring. The device consists of two main parts, namely a temperature measuring module and a display panel module. The method comprises the following steps: the temperature sensor module converts temperature into a digital quantity and transmits temperature data obtained by conversion to a first single chip microcomputer, the first single chip microcomputer processes and packets the temperature data and then sends the data to a first radio-frequency transceiver and the first radio-frequency transceiver sends the processed data according to a wireless protocol; and a second radio-frequency transceiver receives the data sent by the radio-frequency transceiver, unpacks the data and transmits the data to the second single chip microcomputer, and the second single chip microcomputer processes the data and transmits the processed data to a display screen module for displaying the temperature data. The multipoint temperature monitoring device is based on a low-power-consumption design and is powered by a battery, is small in system volume, simple and flexible to install, stable in operation, flexible in expansion and low in cost. The multipoint temperature monitoring device can be expanded to other temperature measuring field.

Description

technical field [0001] The invention relates to the field of automatic monitoring and control, in particular to the temperature measurement and transmission technology of a high-voltage switch cabinet. Background technique [0002] With the rapid development of modern power systems towards high voltage, large units, and large capacity, the requirements for power supply reliability of power systems are getting higher and higher. The high-voltage switchgear is an important electrical equipment. The contacts in the switch and the connection of the bus bar are heated due to aging or excessive contact resistance. Since most of the electrical equipment adopts a closed structure, the heat dissipation effect is poor and the accumulation is large. And long-term operation under the conditions of high voltage, high current and full load, the result will lead to aggravated heat accumulation, if effective monitoring measures are not taken for temperature rise, it will endanger the safe o...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the temperature of the electric shock cable in the high-voltage switchgear cannot be measured and transmitted effectively, safely and conveniently. The principle is to design a module integrating temperature measurement and radio frequency, and directly attach it to the place where the temperature needs to be measured. Use radio frequency to send the temperature data to the receiving device, and the receiving device will display the temperature and alarm information to realize the independence of the temperature measuring device and the function of wireless transmission of temperature data

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