Positioning System Of Personnel Under Mine

This text introduce a design of system which can located person automatically under mine. Datum are collected by way of wireless and transmitted by the cable in the whole system. Everyone has a transmitter under mine. Identity code is send out by wireless signal. Stations of monitoring identity code was installed along laneway , which gather datum about workers from receiving wireless signals. The datum from every monitor stations are transmitted to the host computer of ground by cable. Then, the host computer can analyze , process and store the datum. Based on CANbus field protocol, the host computer and every monitor stations under mine compose a complete system. We have designed monitor station and transmitter of identity code with existing wireless transceiver module, and adopted a lot of anti-interference measures to Guarantee the reliability of transmission of wireless signals. A spot to multispot wireless communication protocol being suitable for this system is put forward. This text also introduce the main point of the design on CANbus node in detail. Some weak points and the aspects of needing improvements are bring forward.