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A target positioning method, device and system

A technology for target positioning and positioning devices, which is applied in positioning, measuring devices, radio wave measuring systems, etc., and can solve the problems of different accuracy of positioning results

Active Publication Date: 2022-07-05
HANGZHOU HIKVISION DIGITAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the case of the same ranging error range, when the positional relationship between the target to be positioned and each anchor point of the base station is different, because the GDOP of the position of the target to be positioned in the coordinate system of the base station is different, the obtained positioning result may be different accuracy

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  • A target positioning method, device and system
  • A target positioning method, device and system
  • A target positioning method, device and system

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Embodiment Construction

[0089] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0090] In the related art, in the target positioning based on UWB ranging on a single base station, since the distribution of GDOP at different positions in space relative to the base station is not uniform, therefore, when the ranging error range is the same, when the to-be-located When the positional relationship between the target and each anchor point of the base station is different, the accuracy of the obtained positioning result...

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Abstract

Embodiments of the present invention provide a target positioning method, device, and system, and relate to the technical field of spatial positioning. The method is applied to a positioning device in a target positioning system, and the system further includes: a base station and a label device. The method includes: using each anchor point of the base station to determine the initial positioning result of the tag device, and judging whether the initial positioning result satisfies the positioning accuracy condition; if so, determining the initial positioning result as the final positioning result of the target to be positioned; otherwise, controlling the base station Rotate, use each anchor point of the rotated base station to determine the target positioning result of the tag device, and judge whether the target positioning result meets the positioning accuracy condition; if so, determine the target positioning result as the final positioning result of the target to be positioned; otherwise, return Steps for controlling the rotation of the base station. Compared with the prior art, applying the solution provided by the embodiment of the present invention can ensure the accuracy of the positioning result when the spatial distribution of the GDOP of the base station is uneven.

Description

technical field [0001] The present invention relates to the technical field of spatial positioning, and in particular, to a target positioning method, device and system. Background technique [0002] At present, with the continuous development of communication technology, the target positioning technology based on UWB (Ultra Wide Band, ultra-wideband communication technology) ranging is widely used in various fields. [0003] In the related art, according to the principle of UWB ranging, a base station with multiple anchor points (anchors) can be used to realize target positioning based on UWB ranging on a single base station. The data packets and response packets are sent and received between the targets, so, based on the sending time and the receiving time of the data packets and the response packets, the positioning result of the to-be-located target is determined by calculating the distance between the to-be-located target and each anchor point. Wherein, each of the abo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/06G01S5/10G01S5/02H04W4/02
CPCG01S5/06G01S5/10G01S5/0205G01S5/0257H04W4/023
Inventor 杜天一
Owner HANGZHOU HIKVISION DIGITAL TECH
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