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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 dead reckoning accuracy and low step accuracy, and achieve accurate step length and results. accurate effect

Active Publication Date: 2021-08-17
CHINA MOBILEHANGZHOUINFORMATION TECH CO LTD +1
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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 relates to the technical field of positioning, and discloses a pedestrian dead reckoning method and a terminal. In the present invention, the dead reckoning method for pedestrians includes: estimating the step length of the target pedestrian according to the estimation model used for estimating the pedestrian step length; wherein, the estimation model is trained in advance based on the collected pedestrian height and historical walking data , the historical walking data include step frequency, peak acceleration and trough acceleration; estimate the walking direction of the target pedestrian; perform dead reckoning according to the estimated step length and walking direction of the target pedestrian, so that the estimated pedestrian step The length is more accurate, thereby improving the accuracy of the results of dead position estimation.

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 Patents(China)
IPC IPC(8): G01C21/20G01C21/16
CPCG01C21/165G01C21/20
Inventor 罗磊
Owner CHINA MOBILEHANGZHOUINFORMATION TECH CO LTD
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