Temperature sensing device with UHFRID communication function

Abstract

The invention provides a temperature sensing device with an UHFRID communication function, and the device comprises an antenna, a radio frequency energy conversion module, a temperature sensor and a radio frequency transmission module. The antenna is sued for receiving a superhigh frequency signal in a free space. The radio frequency energy conversion module is connected with the antenna and converts the superhigh frequency signal into an electrical signal. The temperature sensor acquires the temperature of a measured object and is electrically connected with the radio frequency energy conversion module, and the radio frequency energy conversion module supplies power to the temperature sensor. The radio frequency transmission module is separately and electrically connected with the radio frequency energy conversion module, the temperature sensor and the antenna, the radio frequency energy conversion module supplies power to the radio frequency transmission module, and a temperature signal acquired by the temperature sensor is wirelessly transmitted through the radio frequency transmission module and the antenna.

Description

technical field [0001] The invention relates to the technical field of radio frequency identification, and in particular relates to a temperature sensing device with a UHF RFID communication function. Background technique [0002] Radio Frequency Identification (RFID) technology is the use of radio frequency long-distance communication to achieve the identification, tracking and management of items. At present, it is widely used in many fields such as commercial automation, transportation management and anti-counterfeiting. [0003] In the field of transportation management, it usually involves cold chain logistics (fresh food, wine, etc.); monitoring of environmentally sensitive items such as vaccines and medicines; temperature monitoring of important materials in special warehouses, such as grain and potatoes; temperature monitoring of building materials, etc. , These environments must use temperature sensors. Existing wired temperature sensors are mainly powered by a DC...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of short battery life and poor safety performance in existing temperature sensors relying on batteries for power supply, the present invention provides a temperature sensing device with UHF RFID communication function that can use high-frequency signals in free space for power supply

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