RFID技术及铁路应用

本文介绍了铁路车号识别系统中的RFID关键技术,对多通道零中频检测技术、无源反射调制技术及射频供电技术进行了分析和实验研究,并设计研制出了一套射频自动识别系统。所研制的射频识别系统工作于915MHz,射频功率1．5W,射频卡为平板振子结构,作用距离0～10m,数据10kbps。具有计算机控制自动显示,报表打印等功能。

Technology of RFID and its Application in Railway

The technology of radio frequency automatic object identification is discussed. It utilizes microwave and Transmitterreceiver antenna to realize automatic identification of far distance object. The technology includes multichannel homodyne, reflection modulating without radio frequency source and beam powered by radio frequency energy. A system of radio frequency automatic object identification is developed. It operates at 915 MHz with 1. 5W output power. The RF card adopts the structure of planar dipole. The maximum identification distance is up to 10 meters, the data rate reaches 10 kbs. It can display automatically the data controlled by computer and print the report forms.