Mine mobile communication system

Abstract

The invention discloses a mine mobile communication system, which consists of an Ethernet passive optical network of a double-bus or double-loop structure, a wireless access network, a control system and an explosion-proof mobile station. The system comprises an optical link terminal, a base station controller, a ground base station, office-end equipment, passive optical splitters, explosion-proof optical network terminals, an underground explosion-proof base station, leakage antennae, base station antennae, distributed antennae and the explosion-proof mobile station, wherein the optical linkterminal is connected with the ground base station and the base station controller; the explosion-proof optical network terminals are connected with the underground explosion-proof base station; the underground explosion-proof base station is connected with the leakage antennae, the base station antennae and the distributed antennae; and the explosion-proof mobile station is connected with the underground explosion-proof base station and the ground base station through a wireless interface. The mine mobile communication system has the characteristics of simple structure, flexible deployment, convenient maintenance, relatively lower cost, strong disaster resistance and anti-jamming capacity, capability of eliminating dead zones in communication and meeting requirements on a specific service environment and security for mining, and suitability for underground mobile communication in a coal mine.

Description

technical field [0001] The patent of the present invention relates to a coal mine underground communication system, in particular to a mine mobile communication system. Background technique [0002] Coal is an important energy source in our country. The coal storage conditions are poor, the mining depth is deep, and gas, coal dust, floods, fires, and rock bursts have plagued the healthy development of the coal industry. The coal industry has always been a high-risk industry among industrial and mining enterprises in our country. Especially after an accident in a coal mine, the location of the trapped people is unclear, and the life and death are unknown. It is an urgent problem to be solved for emergency rescue after the disaster. , the underground mobile communication cannot directly adopt the existing systems and technologies on the ground. Therefore, it is necessary to study the characteristics of underground coal mines, such as strong anti-catastrophe, anti-fault and ant...

AI Technical Summary

Problems solved by technology

[0015] The present invention aims to solve the above disadvantages, especially to overcome the existing mine communication system with small network coverage, limited channel capacity and bandwidth, poor anti-interference and anti-fault capabilities, low redundancy, and inability to eliminate blind spots such as mine roadway turns. Communication problems, providing a mine mobile communication system with high bandwidth, high redundancy, anti-fault, strong anti-interference ability, wide coverage and good communication quality

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