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Terminal-based pedestrian positioning method and pedestrian positioning device

A positioning method and pedestrian technology, applied in the field of positioning, can solve problems such as poor indoor positioning performance, and achieve the effect of meeting the requirements of navigation reliability, improving accuracy, and improving positioning accuracy.

Pending Publication Date: 2019-07-30
CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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Problems solved by technology

[0003] The main purpose of the present invention is to propose a terminal-based pedestrian positioning method and a pedestrian positioning device to at least solve the problem of poor indoor positioning performance in the related art

Method used

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  • Terminal-based pedestrian positioning method and pedestrian positioning device
  • Terminal-based pedestrian positioning method and pedestrian positioning device
  • Terminal-based pedestrian positioning method and pedestrian positioning device

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Embodiment Construction

[0017] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0018] With the development of positioning technology, the research on indoor pedestrian positioning and navigation systems has made great progress. Among them, the indoor pedestrian dead reckoning algorithm (Pedestrian Dead Reckoning, PDR) based on the built-in inertial sensors of smart phones is known for its reliability. Good, high precision, no dependence and other advantages, showing good application pro...

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Abstract

The present invention discloses a terminal-based pedestrian positioning method and pedestrian positioning device. The method comprises: acquiring an initial position and an initial heading angle of apedestrian; identifying a real-time posture of a pedestrian carrying terminal; based on a preset correspondence, performing coordinate system conversion on acceleration data of a carrier coordinate system, and setting the axial acceleration or the acceleration modulus of the coordinate system corresponding to the real-time posture as the reference acceleration; preprocessing the reference acceleration, screening the preprocessed reference acceleration by using the peak detection algorithm, and collecting statistics of the number of steps of the pedestrian according to the screened peak; determining the step size and the heading offset of the pedestrian; and determining the target position of the pedestrian according to the number of steps, the step size and the heading offset, the initialposition, and the initial heading angle. According to the technical scheme of the present invention, the accuracy of counting the number of steps can be improved, the positioning accuracy of the pedestrian can be improved, and the technical scheme has high practical application value especially for indoor positioning and navigation.

Description

Technical field [0001] The present invention relates to the technical field of positioning, in particular to a terminal-based pedestrian positioning method and a pedestrian positioning device. Background technique [0002] Global satellite positioning systems (such as GPS, etc.) have been widely used in equipment and transportation such as smart phones, automobiles, airplanes, etc., and they play a huge role in positioning and navigation in land, aviation, and navigation. However, the satellite positioning system will be weakened or even shielded in indoor and high-rise dense environments, thus losing its positioning and navigation functions. With the increasing demand for indoor positioning, the research on indoor positioning and navigation technology has potential for huge social and economic benefits. Summary of the invention [0003] The main purpose of the present invention is to provide a terminal-based pedestrian positioning method and pedestrian positioning device to at l...

Claims

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Application Information

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IPC IPC(8): G01C21/00G01C21/20
CPCG01C21/005G01C21/206Y02D30/70
Inventor 蔺博张乔坤黄河清
Owner CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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