Coal mine broadcast communication system based on message server and sip protocol

Abstract

The invention discloses a coal mine broadcast communication system based on a message server and SIP protocol, which includes an aboveground part and an underground part, wherein the aboveground part includes a ground management machine, a UPS power supply, a photoelectric converter and a mine-used intrinsically safe switch; , the UPS power supply is connected to the ground management machine and the system server, and the ground management machine and the system server are respectively connected to the mine intrinsically safe switch through a photoelectric converter. The underground part includes several broadcasting systems and the mine intrinsically safe switch. The safety switch is connected to the mining intrinsically safe switch on the ground. The playback system includes the mining intrinsically safe broadcast communication host and the mine intrinsically safe speaker. The mine intrinsically safe broadcast communication host is connected to the mine intrinsically safe switch. Mine-use intrinsically safe radio communication host is connected to mine-use intrinsically safe speakers. The invention adopts the standard Internet phone and message protocol, has high network utilization rate, occupies few network resources, and ensures the effect and quality of network products.

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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