Same frequency repeater station for wired relay
A transponder and wired technology, applied in the direction of radio transmission system, line transmission parts, electrical components, etc., can solve problems such as communication failure, impact on driving safety, hidden dangers of tunnel construction personnel, etc., to achieve convenient installation and maintenance, and increase coverage , Improve the effect of voice quality
Inactive Publication Date: 2018-03-09
泉州市铁通电子设备有限公司
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Problems solved by technology
[0002] Vehicle-machine joint control is an important means to ensure railway traffic safety and management level, and improve service quality. In wireless train dispatching communication, the transmission characteristics of radio waves are mainly space wave propagation. On railway lines in mountainous areas, due to tunnels in mountainous areas, Curves, hillsides and high-rise buildings block, forming many blind spots and weak field areas, especially where there are tunnels in the interval, communication is impossible, which affects driving safety and also brings great safety hazards to tunnel construction personnel
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[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0015] The present invention provides such Figure 1-2 The same-frequency transponder of a wired relay includes a main control board 1, and the input end of the main control board 1 is electrically connected to a display board 2, a power supply board 6, a radio station 10 and a wired interface 11. The output end of the main control board 1 is electrically connected to the speaker 3, the input end of the radio station 10 is electrically connected to the antenna...
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The invention discloses a same frequency repeater station for a wired relay. An output end of a main control board is electrically connected with a microphone interface. An input end of a power supplyboard is electrically connected with a storage battery and a switch power supply module. The input end of the switch power supply module is electrically connected with a power supply input end. The main control board comprises a CPU. The input end of the CPU is electrically connected with a modulator-demodulator circuit and a transceiver circuit. The output end of the switch power supply module is electrically connected with the transceiver circuit and an audio circuit. The output end of the CPU is electrically connected with a power adjustment circuit, a power detection circuit and a threshold adjustment circuit. The output ends of the power adjustment circuit, the power detection circuit and the threshold adjustment circuit are electrically connected with a radio station. The output endof a sub-audio circuit is electrically connected with the radio station. The device is low in cost and convenient for installation and maintenance and is an effective method for solving field intensity coverage of a weak field area of a tunnel.
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a same-frequency repeater for wired relay. Background technique [0002] Vehicle-machine joint control is an important means to ensure railway traffic safety and management level, and improve service quality. In wireless train dispatching communication, the transmission characteristics of radio waves are mainly space wave propagation. On railway lines in mountainous areas, due to tunnels in mountainous areas, Curves, hillsides and high-rise buildings block, forming many blind spots and weak field areas, especially where there are tunnels in the interval, communication is impossible, which affects driving safety and also brings great safety hazards to tunnel construction personnel. Contents of the invention [0003] The purpose of the present invention is to provide a same-frequency repeater station for wired relay, so as to solve the problems raised i...
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IPC IPC(8): H04B3/36H04B7/155
CPCH04B3/36H04B7/155
Inventor 洪清喜杨小斌朱元林黄杰强
Owner 泉州市铁通电子设备有限公司