Design and Implementation of Communication Based on Multi-Carrier Modulation in Mine

Geology circumstance of mine seam is extremely complicated and there are many hidden trouble. After analyzed the existing current problems underground mine communication system, a kind of comprehensive information communication system based on the multicarrier modulation technology was designed. This system makes wire communication combined mutually with wireless communication by tandem adapter. In this paper, the framework of communication system network hardware was introduced, and software architecture and the realization of the function were described. Wireless communication system primarily include through-the-earth communication, inductive communication and microwaves communication system, etc.. The key of the system design and the process of implementation were presented. Practical operation shows that the system actually resolved many troubled in coal production site. The technology combines multiple access technology with various modulations technology easily. This system makes use of the advantage of multicarrier technology to provide many kinds of access service in mine. As technical difficulties and major hazard safety issue in communications systems during the operation has been solved, so it has definite meaning and a good value.