论文部分内容阅读
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。
Currently, coal mine personnel positioning system based on radio frequency identification (RFID) can only upload information by identification card. The design is further improved on this basis, the use of ZigBee chip CC2430 as a card reader and the core of the identification card to complete the card reader and identification card between the two-way communication design. Including the design of frame structure of data transmission between identification card, card reader and substation and the realization of wireless two-way communication, the time-division multiple access (TDMA) technology is used to solve the same data collision problem that multiple identification cards communicate with the same card reader .