Ground communication equipment in metro train-ground communication system
A technology of communication equipment and communication system, which is applied in the direction of antenna grounding switch structure connection, leaky waveguide antenna, waveguide type device, etc., which can solve the problems of complex electromagnetic environment, co-frequency interference, waste of wireless resources and construction costs, etc.
Active Publication Date: 2015-07-01
BEIJING ZHONGCHENGTONG CONSULTING CO LTD
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Problems solved by technology
These systems are relatively independent in the subway and use their own wireless communication standards, which will lead to many problems
For example, co-frequency interference may occur between different systems using the same carrier communication, the electromagnetic environment in the subway is too complex, and repeated construction is serious, resulting in waste of wireless resources and increased construction costs
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[0029] The principle and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and then implement the present invention, but not to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the disclosure of this application more thorough and complete, and to completely convey the scope of the disclosure of this application to those skilled in the art.
[0030] The train-ground communication system in the subway includes at least two parts, one is the train communication equipment part located on the subway train, and the other is the ground communication equipment part located in the subway tunnel. The train-ground communication system passes through the train communication equipment and the ground The information exchange between the two parts of the communicati...
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An embodiment of the invention provides ground communication equipment in a metro train-ground communication system. The ground communication equipment comprises at least one feed waveguide, each feed waveguide comprises at least one feed channel unit, each feed channel unit comprises at least one feed channel, and the feed channel can transmit and receive train-ground communication signals in the metro train-ground communication system. When the ground communication equipment comprises two or more feed waveguides, the two adjacent feed waveguides are connected by the aid of leakage waveguides. By the ground communication equipment in the embodiment of the present invention, communication between on-train communication equipment in the metro train-ground communication system and the ground can be realized.
Description
Technical field [0001] The embodiments of this application relate to the technical field of subway communication systems, and in particular to a ground communication device in a subway car-ground communication system. Background technique [0002] At present, based on various practical application needs, various communication systems are built inside the subway, such as the subway wireless dispatching and command system (TETRA) used to realize subway train dispatching and control, in order to solve the high density, high speed and large passenger flow belt of the subway. The communication-based train control system (CBTC) built under the pressure of safe operation is used for police wireless communication systems in subway police, fire dispatching, and station public security on-duty communications. These systems are relatively independent in the subway and use their own wireless communication standards, which will cause many problems. For example, co-frequency interference may ...
Claims
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IPC IPC(8): H01Q1/50H01Q13/22H01Q21/00H01P3/12
Inventor 不公告发明人
Owner BEIJING ZHONGCHENGTONG CONSULTING CO LTD