Signal network topology structure of digital leveling system in complex area
A digital leveling system and signal network technology, applied in transmission systems, electromagnetic network arrangements, electromagnetic wave transmission systems, etc., can solve problems such as poor security and weak anti-interference ability, achieve clear voice, strong anti-interference ability, and overcome serial sound puzzle effect
Inactive Publication Date: 2018-11-20
SHAANXI HONGNING RAILWAY
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Problems solved by technology
[0005] The purpose of the present invention is to provide a signal network topology structure of a digital level adjustment system in a complex area, which solves the problems of weak anti-interference ability and poor security in the complex area of information transmission and reception in the prior art
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Embodiment 1
[0042] In the Nangou Tunnel of Hongning Railway, the remote unit of each repeater is connected to 2 diversity antennas through a power splitter, and 2 diversity antennas are used for diversity reception, which effectively eliminates the blind area in the tunnel.
[0043] The digital planar wireless shunting system of Hongning Railway adopts the different frequency shunting mode, and the signal coverage of the entire station adopts the networking mode of repeater + optical fiber repeater station.
[0044] Adding repeaters and optical fibers to the three basic parts of the digital level adjustment system, the district chief station, the locomotive station and the hand-held station, and adopting diversity antenna diversity reception technology can effectively eliminate signal blind spots.
[0045] The planar wireless shunting system generally adopts the same-frequency shunting mode, but because there are tunnels on one side and both sides of the Ningtiaota Station of the Hongning ...
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The invention discloses a signal network topology structure of a digital leveling system in a complex area, including the following parts: a locomotive station, a regional station, a handheld platformand a locomotive controller, wherein the structure is further provided with a forwarding station and a repeater, the repeater includes a near-end machine and a remote machine that are connected by optical fiber, the remote machine is connected with two diversity antennas through the power splitter, the locomotive controller is also connected to the regional station and the near-end machine through a dedicated network respectively. Signals between the locomotive platform, the regional station, the handheld station and the locomotive controller are sent and received through the forwarding station, and the forwarding station transmits the signals to the near-end machine and the remote machine through the coupler. By adding the forwarding station and the repeater, signals are extended to theblind zone within the tunnel, thereby achieving the anti-jamming capability and safety of the shunting system.
Description
technical field [0001] The invention belongs to the technical field of railway transportation shunting network, and in particular relates to the signal network topology structure of a digital level shunting system in complex areas. Background technique [0002] The plane shunting system is needed for command in railway transportation and station loading operations. The system is composed of a hand-held station, a district chief station, and a locomotive station. The three mainly rely on analog signals to transmit shunting instructions. It is easy to lose information when the analog signal propagates in the air, or it is interfered by the outside world, the information transmission is incomplete, and wrong instructions appear. [0003] At present, our company adopts the analog level adjustment system, which has been put into use for more than 5 years, and has the following shortcomings: 1. The analog equipment is easily disturbed by the outside world, especially in complex ar...
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IPC IPC(8): H04B10/25H04B10/27H04B7/155
CPCH04B7/155H04B10/2589H04B10/25891H04B10/27
Inventor 宋波袁润民赵成武付佳科闫龙白晓伟张永杰
Owner SHAANXI HONGNING RAILWAY