Method for performing heading estimation on pedestrian in multiple carrying modes using mobile terminal

A mobile terminal and portable technology, applied in the field of pedestrian heading estimation, can solve the problems of pedestrian positioning deviation, positioning failure, positioning deviation, etc., and achieve the effect of accurate pedestrian positioning, easy implementation, and simple operation process.

CN108413957AInactive Publication Date: 2018-08-17SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for performing heading estimation on a pedestrian in multiple carrying modes using a mobile terminal. The method comprises the following steps: 1, obtaining the acceleration in a preset coordinate system, the angular velocity at a corresponding time point and the Earth's magnetic field intensity by the mobile terminal; 2, obtaining the attitude angle of the mobile terminal relative to a geodetic coordinate system according to the acceleration, the angular velocity at the corresponding time point and the Earth's magnetic field intensity; and 3, obtaining the gaitfrequency and the gait event sequence of the pedestrian according to the acceleration. The method for performing heading estimation on the pedestrian in multiple carrying modes using the mobile terminal can detect the heading of the pedestrian in multiple carrying modes by calculating human body motion information acquired by the mobile terminal. Compared with the prior art, the method provided by the invention can still achieve the heading estimation of the pedestrian when the pedestrian arbitrarily transforms the carrying mode of the mobile terminal.
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Description

technical field

[0001] The present invention relates to a method for estimating the course of pedestrians, in particular to a method for estimating the course of pedestrians using a mobile terminal in various carrying modes. Background technique

[0002] With the development of positioning technology, people's demand for Location Based Services (LBS, Location Based Services) is increasing day by day. In the outdoor environment, the wide application of Global Navigation Satellite System (GNSS, Global Navigation Satellite System) meets people's outdoor navigation and positioning needs. However, in an indoor environment or an environment covered by buildings, attenuation and multipath effects will occur due to the satellite signal being blocked, which will cause the accuracy of satellite positioning to deteriorate, or even become unusable. Therefore, to achieve accurate indoor positioning and navigation requires the help of other positioning technologies. The continuous impro...

Examples

Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0049] The present invention provides a method for estimating the course of pedestrians using a mobile terminal in various carrying modes, including the following steps: Step 1: Obtain the acceleration in the preset coordinate system, the angular velocity at the corresponding time point, and the earth's magnetic field through the mobile terminal Intensity; Step 2: Obtain the attitude angle of the mobile terminal relative to the earth coordinate system according to the acceleration, the angular velocity a...