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Positioning method, device and system based on magnetic field characteristic vector

A technology of feature vectors and positioning methods, applied in the direction of measuring devices, measuring angles, instruments, etc., can solve the problems of inability to meet navigation and positioning requirements, poor accuracy, etc., achieve precise positioning functions, improve navigation capabilities, and strong robustness

Active Publication Date: 2020-06-12
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The problem solved by the present invention is that the prior art has poor precision in special navigation environment and cannot meet the requirements of navigation and positioning

Method used

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  • Positioning method, device and system based on magnetic field characteristic vector
  • Positioning method, device and system based on magnetic field characteristic vector
  • Positioning method, device and system based on magnetic field characteristic vector

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, the embodiment of the present invention provides a positioning method based on magnetic field feature vectors, including: S1, acquiring the feature vectors of multiple magnetic beacons at the target; S2, determining the position of the target according to the feature vectors; S3 , determining an attitude angle of the target relative to the magnetic beacon according to the position of the target.

[0028] Specifically, in this embodiment, the positioning method based on magnetic field feature vectors includes: acquiring feature vectors of multiple magnetic beacons at the target, and this step specifically includes:

[0029] (1) combination figure 2 The magnetic beacon model diagram shown is based on the ...

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Abstract

The invention provides a positioning method, device and system based on a magnetic field characteristic vector, and relates to the technical field of signal positioning. The positioning method based on the magnetic field characteristic vector comprises the following steps: acquiring characteristic vectors of a plurality of magnetic beacons at a target; determining the position of the target according to the feature vector; and determining an attitude angle of the target relative to the magnetic beacon according to the position of the target. The invention discloses a technical scheme, a low-frequency magnetic field characteristic vector is generated through a magnetic beacon, so that long working time is provided in complex environments with a large number of obstacles, such as underground, indoor and the like; the navigation service scheme has the advantages of simple structure, stability, no accumulation of position errors and target attitude errors, and irrelevance of navigation positioning results and target attitudes, and effectively improves the navigation capability in a complex environment.

Description

technical field [0001] The present invention relates to the technical field of signal positioning, in particular to a positioning method, device and system based on magnetic field feature vectors. Background technique [0002] With the development of technology, people's demand for location-based services is also increasing. Outdoors, with the improvement and popularization of satellite navigation systems such as GPS and Beidou, positioning accuracy services have basically met people’s daily needs; however, in some harsh environments such as dense obstacles and occlusions, GPS and other navigation signals may Positioning accuracy cannot be guaranteed. Contents of the invention [0003] The problem solved by the invention is that the accuracy of the prior art is poor in a special navigation environment and cannot meet the requirements of navigation and positioning. [0004] In order to solve the above problems, the present invention provides a positioning method based on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00G01C1/00
CPCG01C21/00G01C1/00
Inventor 李清华郑元勋于文昭李新年黄志威
Owner HARBIN INST OF TECH
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