Underground optical communication system based on visible light communication

Abstract

The invention discloses an underground optical communication system based on visible light communication. The system comprises a fixed lamp and a camera which are both mounted on the side wall of a mine hole, a cleaning mechanism is arranged outside the fixed lamp; a controller is electrically connected with the fixed lamp and the photoelectric receiving plate; and the system further comprises a data server located at the ground position of the mine. The data server is electrically connected with the nearest controller; the data information communication module serves as uplink communication and transmits the uplink communication to the data server; the data server takes the control command as downlink communication and transmits the control command to the plurality of communication modules through the nearest controller to finish communication; the video monitoring and two-way communication can be achieved through an original lighting system, meanwhile, the cleaning mechanism with theexplosion-proof effect is further arranged, long-term stable operation of the system is facilitated, in addition, information can be transmitted to each individual, and therefore safety is improved,and the system is suitable for underground environment conditions.

Description

technical field [0001] The invention relates to the technical field of downhole safe operation, in particular to a downhole optical communication system based on visible light communication. Background technique [0002] Coal mines are widely distributed on the earth and are the most abundant and direct natural fuel resources in the world. Due to the particularity of their formation, they are non-renewable resources. Although the development of science and the emergence of many other energy sources are gradually replacing coal resources, but at present Coal still plays the role of an important resource in human activities. Most of the coal mines in the world are underground coal mines. With the continuous advancement of mining, the depth of mines continues to increase. The safety of coal mines has always been an important issue in mine production activities. How to strengthen safe production, improve early warning and post-accident handling is the key The top priority of ma...

AI Technical Summary

Problems solved by technology

Due to the special environment of underground coal mines, most of them are roadway type and many coal mines are associated with other metal mines. The conventional radio is susceptible to interference and cannot achieve the conventional ideal effect, and the mine is an explosion-proof environment. The radio is transmitted in the form of electromagnetic waves and is easily placed at the antenna position. To gather energy, another explosion-proof mechanism is required, which is not conducive to underground use, and the form of cables can not only implement point-to-point communication, but also increases the cost and manpower of wiring construction

[0003] The mine is located underground and needs lighting for 24 hours. If the existing lighting facilities can be used for optical communication transmission and integrated with the audio and video monitoring system, it will be conducive to the implementation of underground safety production; System may be blocked by soot

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