Passive RFID temperature and humidity patch and early warning signal device

Abstract

The invention belongs to the technical field of switch cabinet equipment temperature and humidity monitoring or early warning, and particularly relates to a passive RFID temperature and humidity patchand an early warning signal device suitable for switch cabinet electrical equipment. The RFID temperature and humidity patchcomprises a display layer used for displaying temperature, a printed circuit layer, an anti-metal coating layer, an adhesive layer and a tearable protective film layer which are sequentially arranged from top to bottom. The early warning signal device comprises an RFID read-write antenna, an RFID read-write module, a data processor, a short message module, a power supply, a serial port communication module, a relay, a signal lamp and a power supply. The printed circuit layer of the RFID temperature and humidity patch can be used for collecting radio frequency energy of an RFID read-write antenna of the early warning signal device and sending temperature and humiditydata signals through an RFID wireless transmission protocol. The problem that far-infrared thermal imaging temperature measurement of equipment in the switch cabinet is difficult is solved, the equipment moisture hidden danger is eradicated, manpower and material resources are saved, and the intelligent operation and maintenance level of power transmission and transformation equipment is improved.

Description

technical field [0001] The invention belongs to the technical field of temperature and humidity monitoring or early warning of switch cabinet equipment, and in particular relates to a passive RFID temperature and humidity patch and early warning signal device suitable for switch cabinet electrical equipment. Background technique [0002] Due to overload, short circuit, poor contact, iron core heating, poor heat dissipation, etc., the electrical equipment in use will increase the temperature of the conductor. If it is not handled in time, it will generate dangerous temperatures and heat the surrounding combustible materials or objects. cause a fire. If the ambient temperature is too high or the air flow is poor, the heat of the equipment cannot be dissipated in time, which will cause the equipment to trip due to overheating, or even burn out the equipment. [0003] The products in the distribution box, such as residual current action protectors and electronic meters, will se...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a passive RFID temperature and humidity patch and early warning signal device suitable for the electrical equipment of the switch cabinet in view of the problems existing in the prior art. The device can greatly reduce the frequency of far-infrared thermal imaging temperature measurement, It overcomes the difficulty of far-infrared thermal imaging temperature measurement of equipment in the switch cabinet, eliminates the hidden danger of equipment moisture, saves manpower and material resources, and improves the intelligent operation and maintenance level of power transmission and transformation equipment

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