| At present, communication under the coal mine is basically used a wired device in china which is relied on cables to transmit information. As the special environment underground where is so wet, corrosion of cable is serious that lead to the interruption of communication. The contact between the command and the accident occurred point is difficult that becomes a vital blind spot in the communication in mine. Because the cable communications have various drawbacks, wireless technology underground is studied actively both at home and abroad. This is great significance to mine production management, especially in relief of the mine disaster.As the rapid development of the electronic communications, wireless communication technology has also been significant progress. The birth of Zigbee technology for the wireless communications mine has opened up a new path. The paper introduce the reality of Zibgee technology and the basic theory of wireless communication, propose a communication system project of voice and environmental parameters parallel transmission in the mine based on Zibgee technology with the special nature of mining products. Zibgee technology used in the communications of mine is systematically discussed, and designed to achieve the wireless voice communications systems with the Zigbee technology as a platform, and formed a specific product. The system use facilitates nimbly, and can simultaneously transmit voice signals and environmental parameters, make up the current mine disaster relief equipment can only be a single voice signal transmission defects. Practice has proved that the technology fully meet the needs of underground coal mine communications and particularly have been very good applications when the emergency occurred and relief happens in the mine. |