There are many disaster accidents such as gas, water, fire, and ground pressure in coal mines, and they are highly concealed and sudden, so they are not easy to detect. Usually, when an accident occurs, the situation is critical, and it is hazardous and has a wide scope. Coupled with the special roadway environment of mining enterprises, traditional calling and guidance methods can easily cause personnel at some locations to fail to receive warnings and notifications, or fail to get correct evacuation and guidance to avoid accidents.
The hardware design and selection of the system follow the following principles:
Advancedness: The system uses advanced hardware equipment and software systems to avoid the premature elimination of the entire system due to technical backwardness in a short time.
Reliability: The system uses proven hardware and mature software architecture to ensure high reliability of the entire system.
Compatibility: The system integrates existing design and production standards to achieve maximum compatibility and docking with existing coal mine systems.
Scalability: The system adopts a reasonably packaged modular structure, and when corresponding function expansion is needed, only corresponding modules need to be added.
Modern digital broadcasting systems require not only background music, but also business promotion and paging broadcasting, as well as emergency broadcasting of disasters and accidents. Many uses are integrated, so it is imperative to build a digital coal network digital broadcasting system. : When an emergency occurs, and emergency evacuation is required, the staff of the ground dispatching command center uses the digital network broadcasting system of the coal mine to understand the actual situation of each area under the mine, and conduct on-site evacuation and evacuation by broadcasting. Command site personnel to evacuate dangerous areas quickly and orderly to minimize the impact of disaster accidents. At the same time, under normal circumstances, this system can be used to play background music, ⎝⎛森林舞会游戏⎞⎠, mine history education and safety promotion at various locations in the mine.
1. Main function
One-click call function, that is, one-click press can realize the emergency rescue command of the entire mine safety production within half a minute.
“紧急广播装置”上的按钮，立即切断系统中所有分控站的对讲或广播，由调度室对全巷道进行调度指挥。 The ground dispatching room presses the button on the "emergency broadcast device" to immediately cut off the intercom or broadcast of all the sub-control stations in the system, and the dispatching room will dispatch and direct the whole lane.
“紧急呼叫”按钮，立即接通调度室，实现井下状况的及时汇报。 At each sub-control station or alarm point, press the "emergency call" button to immediately connect to the dispatch room to achieve timely reporting of the underground situation.
2. Secondary functions
1) The host computer controls the optional partition, two-way intercom and broadcast
IP地址、序号和名称，并对分控站进行分区与分线；通过上位机可以实现调度室对不同区、线进行不同内容的播放或对讲，并互不干扰。 The host computer management software sets the IP address, serial number and name of each sub-control station , and partitions and sub-lines of the sub-control stations; through the host computer, the dispatching room can realize different content playback or intercom for different areas and lines. , And do not interfere with each other. Such as: the first mining area, the second mining area, etc. play different content.
2) Intercom between any two control stations
Any sub-control station dials the serial number of another sub-control station for paging, which can realize the intercom between the two stations.
3) Call and intercom in sub-control station
Any sub-control station can call and broadcast the speakers and alarm points connected to the station, and can talk to any alarm point in the station.
4) background music
The host computer can play background music to the entire mine, each partition, and each line.
5) Real time or storage of external audio sources
DVD、调频广播等外部音源，可进行实时转播或录制后定时广播。 Use the pre-amplifier to receive external audio sources such as DVD, FM broadcast, etc., and can perform real-time retransmission or timing broadcast after recording.
6) Sharing mine digital information platform
Use the alarm forcing device to receive alarm signals from various monitoring systems, and can automatically perform full mine broadcasting.
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