Technical requirements of communication system for safe and efficient mine

Technical requirements of mine wired dispatching communication system, mine broadcast communication system, mine mobile communication system with multi base stations, mine leakage communication system, mine inductive communication system, mine through-the-earth communication system, mine rescue communication system were put forward. Mine broadcast communication system should have functions such as audio and video broadcast, multicast, anycast, tape recording and recording. It should also have function of intercommunication between dispatching desk and underground terminal. The underground terminal could call the dispatching desk on the ground. Mine mobile communication system with multi base stations should have functions of communication among mobile stations and between mobile station and fixed telephone. It should have abilities to transfer data and short message, to register location information of mobile stations, to handover between different regions, to set priority, time limit of different users and to forbid illegal users. It should also have functions of relay-tandem, self diagnosis and failure indication. Mine rescue communication system should have functions of communication between mobile stations, communication between mobile station and base station, communication between mobile station and base communication terminal on the ground and communication between base station and base communication terminal on the ground. It should have abilities to launch urgent calling, general calling and group calling. It should also have functions such as talkaround of base station and mobile station, video monitoring, monitoring of CH4, CO, O2 and temperature, and monitoring of heartbeat, temperature, posture of rescuer.