SI Yu, FENG Peng, YU Shuang-ming, et al. Temperature monitoring system based on passive UHF RFID temperature tag[J]. 2017, 36(1): 78-80+86. DOI: 10.13873/J.1000-9787(2017)01-0078-03.
A temperature monitoring system based on passive UHF RFID temperature tag is designed. The system consists of self-designed passive UHF RFID tags
Speedway R220 commercial reader and a upper PC application software
the temperature monitoring system realizes object identification recognition
real-time temperature measurement and display function. In order to increase precision of temperature tag
an adapative power matching algorithm is proposed
which can make multiple tags within the antenna scan range work in optimum temperature measuring power. The test results show that when the distance between the tag and the reader is respectively0. 5 m
1. 0 m and 1. 5 m
the temperature measurement error is less than ± 1 ℃.