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High-precision positioning method in tunnel

A positioning method and high-precision technology, which can be applied to services based on location information, electrical components, synchronization devices, etc., can solve the problems of low positioning accuracy, inability to locate, and high cost, achieve positioning accuracy, avoid large errors, The effect of reducing the cost of positioning

Pending Publication Date: 2022-01-21
格星微电子科技成都有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in the outdoor space, the positioning of vehicles and personnel is usually carried out by satellite navigation, and the position, speed, direction and other information are obtained through the satellite navigation receiver. or cannot be positioned within the occluded area
[0003] For the problem that closed areas such as tunnels cannot be located, the existing technologies usually use wireless positioning, Bluetooth positioning, radio frequency technology positioning, etc., which need to install monitors at the entrance and exit of tunnels, and the number of base stations that tag positioning relies on is large, and the cost is high And the positioning accuracy is low

Method used

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  • High-precision positioning method in tunnel

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0029] In order to solve the technical problems raised in the background technology, this application proposes a high-precision positioning method in the tunnel, such as figure 1 Shown is a schematic flow diagram of a high-precision positioning method in a tunnel proposed by the embodiment of the present application, which is applied to a system including a server, multiple positioning base stations and terminals, and the positioning base stations are uniformly arranged in the tunnel along t...

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Abstract

The invention discloses a high-precision positioning method in a tunnel, which is applied to a system comprising a server, a plurality of positioning base stations and a terminal, the positioning base stations are uniformly arranged in the tunnel along the direction of the tunnel, and a positioning area is formed between every two adjacent activated positioning base stations. Two adjacent activated positioning base stations in each positioning area are respectively a master base station and a slave base station, and a ranging time slot table is sent to the terminal through all the master base stations, so that the terminal selects a positioning area according to the ranging time slot table and performs ranging communication with the master and slave positioning base stations in the corresponding positioning area; a three-dimensional coordinate system taking the corresponding main base station as an original point is established; and then the terminal is positioned based on the three-dimensional coordinate system and distance measurement communication, high-precision positioning is performed on the terminals such as vehicles and personnel in the tunnel, and the positioning cost in the tunnel is reduced.

Description

technical field [0001] The invention belongs to the technical field of positioning, and in particular relates to a high-precision positioning method in a tunnel. Background technique [0002] At present, in the outdoor space, the positioning of vehicles and personnel is usually carried out by satellite navigation, and the position, speed, direction and other information are obtained through the satellite navigation receiver. Or it cannot be positioned within the occluded area. [0003] For the problem that closed areas such as tunnels cannot be located, the existing technologies usually use wireless positioning, Bluetooth positioning, radio frequency technology positioning, etc., which need to install monitors at the entrance and exit of tunnels, and the number of base stations that tag positioning relies on is large, and the cost is high And the positioning accuracy is low. [0004] Therefore, how to perform high-precision positioning of terminals such as vehicles and per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/021H04W56/00H04W64/00
CPCH04W4/023H04W4/021H04W64/006H04W56/0015
Inventor 罗茂根梁修如王玄杨学彬
Owner 格星微电子科技成都有限公司
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