RFID passive sensing device used for measuring contact temperature of power switch cabinet

Abstract

The invention relates to an RFID passive sensing device used for measuring contact temperature of a power switch cabinet. The device includes an RFID passive sensor installed in the vicinity of a switch cabinet contact, and an RFID reader antenna and an RFID temperature reader which are installed at an inner side of a switch cabinet body, and the RFID reader antenna and the RFID temperature reader are connected by adoption of a coaxial cable; RFID passive sensor is internally provided with an RFID passive tag antenna circuit and a temperature measuring RFID circuit; and the RFID temperature reader includes a microprocessor, and a system power module, an external communication module and a wireless transceiving module which are electrically connected with the microprocessor. The RFID passive sensing device used for measuring the contact temperature of the power switch cabinet is reasonable in structure, small in size, high in stability, and convenient to install, does not need to install a battery, has a long reading distance, and satisfies environment requirements of temperature measurement of a switch cabinet.

Description

technical field [0001] The invention relates to the field of passive sensing devices, in particular to an RFID passive sensing device for measuring the temperature of a contact of a power switch cabinet. Background technique [0002] In recent years, with the rapid development of RFID technology, the application of radio frequency identification tags has been greatly expanded. From the previous only transmission of data stored in the tag to represent its identity, it has expanded to more and more application fields. For example, when transmitting the data representing the identity, the ambient temperature data can be transmitted together, so that the reader or server can obtain the ambient temperature where the tag is located. [0003] In the prior art, whether active or passive RFID technology is used to combine video recognition and temperature sensing, the temperature measurement function is realized by combining an external temperature measurement module circuit. Such ...

AI Technical Summary

Problems solved by technology

Such a combination device is large in size, limited in installation location, and requires additional power supply for the external temperature measurement module, resulting in potential safety hazards and cannot meet the temperature measurement requirements of power switch cabinets.

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