Title:
VEHICLE POSITIONING METHOD, VEHICLE-MOUNTED UWB DEVICE, ROADSIDE UWB DEVICE AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/029367
Kind Code:
A1
Abstract:
The embodiments of the present disclosure relate to a vehicle positioning method, a vehicle-mounted UWB device, a roadside UWB device and a medium. The method comprises: determining a first relative horizontal distance at a first moment, a second relative horizontal distance at a second moment, and a third relative horizontal distance at a third moment between a vehicle-mounted UWB device and a roadside UWB device; acquiring position information of the roadside UWB device; determining a first movement distance, from the first moment to the second moment, and a second movement distance, from the second moment to the third moment, of a vehicle where the vehicle-mounted UWB device is located; and on the basis of the first movement distance and the second movement distance, determining a movement trajectory of the vehicle on three circles which take the position information of the roadside UWB device as the center of a circle, and respectively take the first relative horizontal distance, the second relative horizontal distance and the third relative horizontal distance as radii. Therefore, high-precision vehicle positioning can be realized with low cost.
Inventors:
LIANG CHEN (CN)
Application Number:
PCT/CN2022/073760
Publication Date:
March 09, 2023
Filing Date:
January 25, 2022
Export Citation:
Assignee:
PATEO CONNECT TECH SHANGHAI CORPORATION (CN)
International Classes:
H04W4/02; H04W4/40; H04W64/00
Foreign References:
| CN113747354A | 2021-12-03 | |||
| CN112050819A | 2020-12-08 | |||
| EP3096154A1 | 2016-11-23 | |||
| CN111681445A | 2020-09-18 | |||
| CN108898880A | 2018-11-27 | |||
| CN110018503A | 2019-07-16 | |||
| CN110673092A | 2020-01-10 | |||
| EP3825714A2 | 2021-05-26 | |||
| GB2450476A | 2008-12-31 |
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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