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Pedestrian dead reckoning method and terminal

A dead reckoning and pedestrian technology, which is applied to navigation calculation tools, navigation and navigation through speed/acceleration measurement, can solve the problems of low step length accuracy and low dead reckoning accuracy, and achieve accurate step length and improve Accurately estimated, accurate results

Active Publication Date: 2019-10-25
CHINA MOBILEHANGZHOUINFORMATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the inventors found that there are at least the following problems in related technologies: in the current research on step size calculation, the step size calculation model is usually used to calculate the pedestrian step size, but the step size accuracy calculated by using the existing step size calculation model lower, resulting in lower accuracy of dead reckoning results

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  • Pedestrian dead reckoning method and terminal
  • Pedestrian dead reckoning method and terminal
  • Pedestrian dead reckoning method and terminal

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Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized. The division of the following embodiments is for the convenience of description, and should not constitute any limitation to the specific implementation of the present invention, and the various embodiments can be combined and referred to each other on the premise of no contradiction.

[0022] The first embodi...

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Abstract

The embodiment of the invention, which relates to the technical field of positioning, discloses a pedestrian dead reckoning method and a terminal. The pedestrian dead reckoning method includes: estimating a step length of a target pedestrian according to an estimation model for estimating a step length of the pedestrian; estimating a walking direction of the target pedestrian; and according to theestimated step length and walking direction of the target pedestrian, carrying out dead reckoning. The estimation model is obtained in advance by training based on collected pedestrian heights and historical walking data and the historical walking data include a stride frequency, a crest acceleration and a trough acceleration. Therefore, the estimated step length of the pedestrian becomes accurate, so that the accuracy of the result of dead reckoning is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of positioning, and in particular to a pedestrian dead reckoning method and terminal. Background technique [0002] With the reduction of hardware costs, the popularization of inertial sensors, and the widespread deployment of indoor positioning, pedestrian dead reckoning (Pedestrian Dead Reckoning, PDR) is highly valued by the industry. PDR has the characteristics of low cost and convenient implementation, so that people can quickly perform indoor positioning and tracking anytime and anywhere in daily life, and can help staff search and provide medical assistance to people in buildings in emergency situations; Monitoring of the flow of people in and out of sensitive areas in the object; fast indoor location navigation for users to quickly reach their destinations in complex indoor environments. [0003] However, the inventors found that there are at least the following problems in rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20G01C21/16
CPCG01C21/165G01C21/20
Inventor 罗磊
Owner CHINA MOBILEHANGZHOUINFORMATION TECH CO LTD
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