【摘要】 稻米追溯体系的建立是从源头提高稻米质量安全的必然趋势。为此,针对优质稻米追溯体系中信息采集的要求,设计了UHF RIFD阅读器的硬件及软件系统,该阅读器采用PIE编码、PR-ASK调制和CRC校验方式。试验结果表明:阅读器读取距离1m,其成本较低,稳定性强,易于实现。更多还原

【Abstract】 It is an inevitable trend to establish the quality rice tracing system for improving the quality and safety of rice.This paper designs the hardware and software system of UHF RFID reader according to requirements for the rice information collection.The reader uses the PIE code,the PR-ASK modulation and CRC checking method.The test results show that: the reader to read 1 m distance,the cost is low,strong stability,easy to realize.更多还原