| Popis: |
According to our country coal mine production safety status, a multipoint gas monitoring and control system based on wireless transceiver chip nRF2401 was introduced. the system included the front and terminal two subsystems. The front system collected multipoint gas signals to the micro controller unit, then sent it to terminal system through wireless transceiver chip nRF2401, The terminal system could not only show the datas from the front system on LCD screen, and set overrun alarm for specified monitoring point, but also could output analog signal and control relay action. Comparing with the traditional wire data transmission mode, the wireless system omits linking lines, so it is simple, cheap and quick. The practical application results show that the monitoring system is stable, reliable and highly accurate, so the system has large potential application value. |
