Multimedia communication system for mining

Abstract

The invention discloses a mine-used multimedia communication system which comprises underground devices and surface devices, wherein the underground devices comprise mine-used multimedia communication access network gateways, an intrinsically safe wireless Ethernet mobile communication terminal, optical fibers and a power supply; the surface devices comprise a voice adjusting console, a network switch, a server module and a power supply; the mobile communication terminal is connected with the network gateway through the wireless network; the voice adjusting console is connected with the network gateway through the Ethernet; the network gateways form the redundant network through the interlinking optical fibers; the mobile communication terminal, an electronic label and a wireless camera are respectively connected with the network gateway through the wireless network; and the network gateway is connected with an underground wired camera through an inside Ethernet module or a video server module. The structure of the multimedia communication system is simple and effective, so to facilitate the deployment, the operation and the maintenance; and realize the high bandwidth and the highdisaster recovery to meet the requirements for the current underground mobile communication, the personnel orientation, the production and the management of the video monitoring and the emergency rescue.

Description

technical field [0001] The invention relates to a mine communication system, in particular to a mine multimedia communication system. Background technique [0002] Coal is an important energy source in my country, accounting for about 70% of primary energy. More than 95% of my country's coal mines are underground mining. Poor coal storage conditions, deep mining depths, gas, coal dust, floods, fires, rock bursts, and geothermal heat have plagued the healthy development of the coal industry. high-risk industries. Analyzing the reasons, there are not only problems such as chaotic management, low quality of personnel, insufficient security investment, weak scientific research, but also backward communication equipment in coal mines. Especially after an accident in a coal mine, the number of people in the mine is unknown, the location of the trapped people is unclear, and the life and death of the trapped people are unknown, which is an urgent problem to be solved by post-disas...

AI Technical Summary

Problems solved by technology

[0005] (2) Large transmission attenuation

[0007] (4) Low transmit power

The ground-penetrating communication system has problems such as large equipment size, heavy weight, small channel capacity, high ground equipment power, difficult ground antenna layout, and one-way communication (ground to underground), so it is not suitable for coal mine underground wireless communication system

The leakage communication system has problems such as poor anti-catastrophe ability and poor reliability of series relay, so it is not suitable for coal mine underground wireless communication system

The inductive communication system has problems such as large size, heavy weight, small channel capacity, and short communication distance, so it is not suitable for multi-functional coal mine underground wireless communication system

The PHS (Little Smart) communication system and the 3G (Great Smart) communication system have problems such as base station controllers and base stations not being intrinsically safe explosion-proof, poor disaster resistance capabilities, and the maximum communication distance between the underground base station and the ground does not meet the requirements of 10 kilometers for underground communication.

[0014] It can be seen that the application of existing technologies in coal mines fails to fully meet the requirements of redundant networks, wireless communications, and safety requirements.

In addition, functions such as personnel position monitoring, video monitoring, and industrial Ethernet interconnection have not been realized simultaneously in the prior art

[0015] At present, the underground personnel position monitoring system does not have functions such as voice wireless communication, video surveillance, and industrial Ethernet interconnection.

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