Beidou tunnel coverage system and layout method

A tunnel and Beidou technology, applied in the field of communication, can solve problems such as complex layout, difficulty in building systems, and high construction intensity, and achieve the effect of satisfying locomotive positioning

Active Publication Date: 2019-08-02
BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a Beidou tunnel coverage system and deployment method, which are used to solve the problems of complex layout, high construction intensity, and difficulty in building a system when performing coverage enhancement in a sheltered environment in the prior art.

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  • Beidou tunnel coverage system and layout method
  • Beidou tunnel coverage system and layout method
  • Beidou tunnel coverage system and layout method

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] figure 1 It is a schematic diagram of a Beidou tunnel coverage system according to an embodiment of the present invention. Such as figure 1 In the shown Beidou tunnel coverage system, a communication link includes a management unit, a reference unit and at least one relay unit;

[0029] The management unit is composed of a server, a swit...

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Abstract

The embodiment of the invention provides a Beidou tunnel coverage system and a layout method. A communication link is formed through a management unit, a reference unit and at least one relay unit, satellite navigation signals synchronous with the real satellite navigation signals in time and frequency are simulated and regenerated according to the received real satellite navigation signals, and broadcasting is conducted through an antenna, so that it is guaranteed that regeneration signals can be effectively received in a tunnel; an appropriate arrangement position is set according to the tunnel environment, it is guaranteed that seamless continuous navigation can be achieved when a train enters a closed area from an open area, and locomotive positioning, personnel positioning, containerpositioning and precise time service services are met under the condition that all vehicle-mounted terminals, handheld terminals and the like are not changed.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a Beidou tunnel covering system and a laying method. Background technique [0002] Along the entire domestic railway transportation, there are a large number of sheltered environments, such as tunnels, stations, etc. Due to the relative closedness of the environment, the satellite navigation signal is almost completely blocked, and its signal strength is far below the bottom limit that the receiver can track. [0003] There are generally two types of conventional technologies for solving positioning blind spots. The first type is indoor positioning technology based on WIFI positioning and Bluetooth positioning. This technology mainly calculates the distance between the positioning module and the receiving device based on the signal strength collected by the positioning module, and finally calculates the position of the receiving device through the three-point positioning ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/01G01S19/03
CPCG01S19/01G01S19/03
Inventor 田秀臣李润武刘燕妮虞俊浦
Owner BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT CO LTD
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