Design and Development of Temperature Wireless Test System Based on NFC

A temperature wireless test system has been developed to address the problem that temperature measurement in a specific scene under rotating conditions can't meet the wiring requirements. The system not only can use near field communication (NFC) technology to achieve the function of continuously obtaining temperature signal, but also can collect energy through the antenna to power small passive devices. Wireless communication technology adopts series standard impedance matching technology to fully explore the correlation between the antenna structure and circuit parameters, so as to improve the transmission efficiency of the antenna. In order to ensure the stability and reliability of the system, the serial port and NFC are used for comparison test. Wireless charging technology uses radio frequency chip to collect energy, and completes energy transmission through the driving end. After testing, The energy output voltage obtained through the NFC technique is 3.3 V, which meets the demand of power supply.