矿井人员定位无线双向通信设计

Wireless Two-way Communication Design for Personnel Locate of Mine

目前基于无线射频识别技术(RFID)的煤矿井下人员定位系统,只能由标识卡上传信息。本设计在此基础上进行进一步完善,使用ZigBee芯片CC2430作为读卡器及标识卡的核心,完成了读卡器与标识卡之间双向通信的设计。包括标识卡、读卡器和分站之间传送数据的帧结构设计和无线双向通信的实现,采用时分多址(TDMA)技术解决多个标识卡与同一个读卡器通信的同数据碰撞问题。

Now,coal mine positioning systems based on radio frequency identification （RFID） technology,only upload information by the identification card . This designed further improve it on this basis. Use ZigBee chip CC2430 as the core of the card reader and identity card, and completed the design of two-way communication between the reader and the identification card. Including the identification card, card reader and sub-station to transfer data between the frame structure design, and the realize ofwireless two-way communication, Using time division multiple access （TDMA） technology to solve the problem of more than one identification card with a card reader to communicate with the data collision.