Mine fully-mechanized coal mining face wireless network transmitting system

Abstract

The invention relates to a mine fully-mechanized coal mining face wireless network transmitting system, which comprise wireless cameras for acquiring images and carrying out wireless data interaction on the images, mining wireless base stations for carrying out wireless data interaction with the plurality of wireless cameras, and converting wireless signals and wired signals, a mining core switch for carrying out wired data interaction with the plurality of mining wireless base stations, and a control center for carrying out wired data interaction with the mining core switch and displaying the images. The mine fully-mechanized coal mining face wireless transmitting system realizes safety production monitoring anytime and anywhere, and with an automatic pushing mechanism for automatic alarm information, related personnel can discover accident potentials and treat in time, the accident prediction and prognosis capability is improved, a working face is unattended, the accident occurrence rate and the casualty rate are reduced, the operation quality and the reliability of a coal mine safety production system are improved, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to a wireless video monitoring, voice cluster, and automatic equipment data acquisition wireless transmission system for fully mechanized mining working faces in coal mines. Background technique [0002] Due to the frequent occurrence of accidents in coal mines, the most accident-prone coal mine is the fully-mechanized coal mining face. Accidents that are prone to occur here include roof fall, gas gushing, water seepage, and human error, which cause many miners to die and become disabled every year. . With the popularization of video surveillance in coal mines, video surveillance has been realized in most places. There are three types of mine wireless communication systems, including PHS wireless system, WiFi wireless system, and 3G wireless system. [0003] PHS wireless system [0004] PHS (Little Smart) wireless local telephone technology originated from Japan and is an effective extension and supplement of fixed telephones, k...

AI Technical Summary

Problems solved by technology

[0007] (1) The penetration ability of WiFi signal is poor, and it is easily blocked and interfered by obstacles. In complex environments, data transmission is unstable, and the sound quality of calls is not guaranteed;

[0008] (2) The actual coverage distance of the WiFi base station in the mine is relatively short, and the general straight line is less than 300 meters, plus 2.4GH z The signal turning ability is poor, so more base stations need to be deployed to achieve full coverage;

[0009] (3) The WiFi system does not support terminal switching between base stations well, and terminal switching during a call is likely to cause call drop due to packet loss;

[0010] (4) WiFi mobile terminal consumes power quickly and the standby time is relatively short

However, the pure 3G system also has shortcomings such as insufficient bandwidth and unstable connection, and cannot provide sufficient bandwidth and connection stability for high-speed devices such as wireless high-definition cameras and mobile broadband information terminals.

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