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Accurate positioning method

A technology for precise positioning and positioning results, which is applied in the ultra-broadband field to achieve the effect of improving positioning accuracy and satisfying precise positioning.

Pending Publication Date: 2021-03-26
北京金坤科创技术有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0012] The invention discloses a precise positioning method, which solves the problem of precise positioning in complex environments

Method used

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Embodiment Construction

[0069] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0070] see figure 1 , a schematic flowchart of a precise positioning method provided by an embodiment of the present invention, as shown in figure 1 shown, including the following steps:

[0071] 101: Obtain an ultra-wideband high-precision positioning result of a mobile entity;

[0072] 102: According to the ultra-wideband high-precision positioning result of the mobile entity, obtain the precise positioning result of the mobile entity on a predetermined route through a line matching method; and / or, according to the ultra-wideband high-precision positioning result of the mobile entity, through The area matching method obtains the precise positioning result of the mobile entity in a predetermined area.

[0073] In this embodiment, the above-mentioned ...

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Abstract

The invention discloses an accurate positioning method. According to the method, the position of a mobile entity is precisely matched through a line matching and region matching method according to anultra-wideband high-precision positioning result, and a precise positioning result of the mobile entity is formed in a set line and a set region. According to the method, the positioning precision ofthe mobile entity in a complex environment can be greatly improved, and the requirement of accurate positioning is met.

Description

technical field [0001] The invention relates to the field of ultra-wideband technology, in particular to an accurate positioning method. Background technique [0002] Ultra Wide Band (UWB) high-precision positioning technology, the positioning accuracy can reach centimeter level, which adopts two-way TOF (Time Of Flight, time of flight) asynchronous positioning method, TDOA (Time Difference Of Arrival, time difference of arrival) synchronous positioning method . [0003] In the two-way TOF asynchronous positioning method, the positioning terminal sends a polling (POLL) message, measures and records the transmission time T1 of the ultra-wideband signal; after receiving the POLL message, the positioning base station measures and records the receiving time of the first path signal in the ultra-wideband signal T2; the positioning base station sends a response (RESPONSE) message, and the transmission time of measuring and recording the ultra-wideband signal is T3; the positionin...

Claims

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Application Information

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IPC IPC(8): G01S5/04G01S5/06G01C21/00H04W64/00
CPCG01C21/005G01S5/04G01S5/06H04W64/00
Inventor 贺媛吴彤于长虹
Owner 北京金坤科创技术有限公司
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