2.4G communication frequency-based wireless temperature measurement device of switch cabinet

Abstract

The invention discloses a 2.4G communication frequency-based wireless temperature measurement device of a switch cabinet and belongs to the technical field of wireless monitoring devices of switch cabinets. The wireless temperature measurement device comprises a monitoring master machine and a monitoring slave machine, wherein the monitoring slave machine comprises a slave machine controller, a temperature sensor, a slave machine RTC time tick module, a power supply module, a slave machine wireless communication module and a slave machine watchdog module, and the slave machine controller is connected with the temperature sensor, the slave machine RTC time tick module, the power supply module, the slave machine wireless communication module and the slave machine watchdog module. By a wireless communication module, a temperature of each contact in the switch cabinet is measured, is displayed by an external display module, is stored in an EEPROM storage module and is uploaded to an uppercomputer for display, and the purpose of real-time monitoring is achieved; with the adoption of mutual-inductance energy taking mode, the problem of power supply difficulty is solved; the data communication frequency is changed according to temperature data, and better real-time on-line monitoring is achieved; and a dithering elimination program is also added into communication, and false alarm rate is reduced.

Description

technical field [0001] The invention belongs to the technical field of on-line monitoring devices for switch cabinets, and in particular relates to a wireless temperature measuring device for switch cabinets based on 2.4G communication frequency. Background technique [0002] Modern electric power is rapidly developing towards large units, high voltage, and large capacity, which puts forward higher and higher requirements for the reliability of power system equipment. Temperature is an important parameter of power system equipment. Accurate and real-time monitoring of the temperature of its key points will help to detect and eliminate existing faults in time and ensure safe and reliable operation of power equipment. At present, the temperature measurement device of high-voltage switchgear mainly monitors the contacts. Due to the limitation of the principle and method of temperature measurement and the technical level, expensive infrared temperature sensors or optical fiber g...

AI Technical Summary

Problems solved by technology

At present, the temperature measurement device of high-voltage switchgear mainly monitors the contacts. Due to the limitation of the principle and method of temperature measurement and the technical level, currently the expensive infrared temperature sensor or fiber grating temperature sensor is mainly used to complete the temperature measurement. It is more and more difficult to implement the temperature measurement method in the switchgear with higher and higher integration degree, and for these two kinds of temperature measurement, the data is transmitted by wire, which is also easy to cause insulation reduction, or cause creepage, etc. situation, endangering the safe operation of the switchgear

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