Multifunctional telephone broadcast system for train
A broadcasting system and multi-functional technology, applied in the transmission system, specific broadcasting applications, electrical components, etc., can solve the problem of inconvenient separation of the telephone system and the broadcasting system, and achieve the simplification of the voice processing circuit, the improvement of convenience, and the improvement of call quality Effect
Inactive Publication Date: 2016-01-13
SHENZHEN HANGSHENG ELECTRONICS
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Problems solved by technology
[0007] The purpose of the present invention is to provide a train multifunctional telephone broadcasting system, which aims to solve the inconvenience caused by the separation of the telephone system and the broadcasting system in the current train
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[0036] figure 1 A system block diagram provided by the embodiment of the present invention is shown. Fromfigure 1 It can be seen that the system includes a train central controller, a multi-function terminal, a switch, a broadcast enable line, a main audio line, a secondary audio line, and a broadcast bus, and the multi-function terminal is connected to the train Ethernet bus through the switch , the train central controller is connected to the train Ethernet bus through the switch, the multi-functional terminal is connected to the broadcast enabling line, the main audio line, the secondary audio line and the broadcast bus respectively, and the train central control The device is connected to the broadcast enable line, the broadcast enable line has two levels, high and low, the high level of the broadcast enable line corresponds to the busy state of the broadcast bus, and the broadcast enable line The low level corresponds to the idle state of the broadcast bus, and the train...
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The invention relates to a multifunctional telephone broadcast system for a train, and the system comprises a train central controller, a multifunctional terminal, a switcher, a broadcast enabling wire, a main audio wire, an auxiliary audio wire, and a broadcast bus. The multifunctional terminal is connected with a train Ethernet bus through the switcher, and is connected with the broadcast enabling wire, the main audio wire, the auxiliary audio wire and the broadcast bus. The train central controller is connected with the broadcast enabling wire, and the broadcast enabling wire has a high level and a low level, wherein the high level of the broadcast enabling wire is corresponding to a busy state of the broadcast bus and the low level of the broadcast enabling wire is corresponding to an idle state of the broadcast bus. The train central controller and the multifunctional terminal can adjust the level state of the broadcast enabling wire. The system can receive and transmit voice information in a full duplex manner, integrates the functions of whole broadcast, single-train broadcast, one-key driver calling and full duplex intercom, carries out the redundancy design, and is enabled to work normally even the Ethernet is disconnected.
Description
technical field [0001] The invention relates to the field of high-speed train communication systems, in particular to a train multifunctional telephone broadcasting system. Background technique [0002] In recent years, as high-speed train travel has become more and more popular, train communication systems have become increasingly important. The in-car communication mainly refers to the train broadcasting system and the train intercom system, which provide functions such as site information broadcast, background music playback, manual broadcast, and manual intercom during train operation. [0003] At present, these two systems are generally separated at present, and the telephone system is used for calls. If a broadcast is required, the conductor needs to go to the broadcasting room to broadcast, which is very inconvenient. In addition, the calls between the conductor and the driver are generally urgent and relatively frequent. It would be inefficient to call the driver ev...
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Login to View More IPC IPC(8): H04H20/62H04L29/08
Inventor 吴震宇肖楚勤李想陈亮张继文
Owner SHENZHEN HANGSHENG ELECTRONICS