Design for Underground Wireless Gas Sensor Node Based on ZigBee Technology

Adopting ZigBee wireless communication technology and current coal mine sensors, a portable wireless sensor is designed. The sensor can monitor the gas density signals in coal mines. The whole design and hardware module of sensor node are discussed, and the software design is introduced. Application program is written and processed in embedded operating system μC/OS-II real-time, which achieves the desired experiment result.