采用射频Soc nRF9E5 设计矿井人员定位系统，阐述了系统的结构功能及工作原理，给出了系统核心部分即人员定位终端的详细软硬件设计方法。文章通过制定合理的无线通讯协议，有效地解决了无线通讯时的数据碰撞问题。关键词：nRF9E5；无线通讯协议；时分多址Abstract: Based on the RF-Soc nRF9E5,a type of mine personnel orientation system isdesigned. The structure and the operating principle of the system is given in the paper.Andthe software and hardware design of the personnel orientation terminal,which is the corepart of the system, is provided in detail.By designing a reasonable wireless communicationprotocol,the data collision problem appearing in mutiplex wireless commuciation is solvedevidently.Key words: nRF9E5 Wireless Commuciation Protocol TDMA