Coal mine broadcast communication system based on message server and SIP (session initiation protocol)

Abstract

The invention discloses a coal mine broadcast communication system based on a message server and an SIP (session initiation protocol). The system comprises an overground part and an underground part, wherein the overground part comprises a ground management machine, a UPS (uninterruptible power supply), photoelectric converters and a mine intrinsic safety type interchanger I, and the USP is connected with the ground management machine and a system server which are connected with the mine intrinsic safety type interchanger I through the photoelectric converters respectively; the underground part comprises a plurality of broadcasting systems and a mine intrinsic safety type interchanger II; the mine intrinsic safety type interchanger II is connected with the mine intrinsic safety type interchanger I of the overground part; and each broadcasting system comprises a mine intrinsic safety type broadcast communication host and a mine intrinsic safety type loudspeaker box, and the mine intrinsic safety type broadcast communication host is connected with the mine intrinsic safety type interchanger II and the mine intrinsic safety type loudspeaker box. Standard internet phones and message protocols are adopted, the internet utilization rate is high, fewer internet resources are occupied, and the effect and the quality of internet products are guaranteed.

Description

technical field [0001] The invention relates to a coal mine broadcast communication system based on a message server and SIP protocol. Background technique [0002] There are roughly two kinds of broadcast communication devices currently used in coal mines in my country. One is to use the traditional analog audio broadcast method, which has shortcomings such as short transmission distance, poor anti-interference ability, separate wiring and only full-network voice broadcast. In addition, relay amplification and high-voltage carrier transmission are required, which cannot meet the requirements of coal mine long-distance transmission and high-quality voice playback in terms of use effect and safety. Second, although the current computing network technology is applied, the broadcast signal collected in real time is quantized, coded, compressed, and buffered, and transmitted to the network broadcast terminal in the form of IP data packets according to the network transmission pro...

AI Technical Summary

Problems solved by technology

At present, most of the coal mines in our country basically use amplified telephones. The disadvantage is that they are far from meeting the needs of coal mine safety production in terms of sound quality and safety emergency.

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