基于RFID标签的分布式温度测量系统设计

Design and Implementation of Distributed Multipoint Temperature Measurement System Based on RFID

摘要:

射频识别(RFID)技术是一种低成本且高效的非接触式自动识别技术,其具有的识别速度快,识别距离远等优点,使其具有非常广泛的应用前景；设计一种基于RFID的分布式多点温度测量系统,系统由RFID电子标签、读写器、主接收机和PC组成,实现各节点温度的实时采集功能;为了提高各节点的温度测量精度,提出了一种测温补偿算法,采用最小二乘拟合的方案,克服由于器件的不准确而引入的测量误差;结果表明,该系统可以有效完成多点温度测量采集的功能,同时具有非常高的精确性。

Abstract:

radio frequency identification (RFID) technology is a low-cost and efficient non-contact automatic identification technology, which has the advantages of high recognition speed and recognition distance. A distributed multi-point temperature measurement system based on RFID is designed. The system is composed of temperature acquisition module, wireless transceiver module and host computer module. In order to improve the accuracy of temperature measurement of each node, a temperature compensation algorithm is proposed, and the least square fitting method is adopted to overcome the measurement error caused by the inaccuracy of the device. The results show that the system can effectively accomplish the function of multi point temperature measurement and has high accuracy.