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Smart phone-based indoor positioning and pedestrian tracking method

A smart phone, indoor positioning technology, applied in the field of indoor pedestrian positioning and tracking, can solve problems such as low cost and achieve the effect of improving accuracy

Inactive Publication Date: 2018-03-23
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the problem solved by the present invention is how to solve the problem of accurately locating the trajectory of indoor pedestrians at the same time and at low cost

Method used

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  • Smart phone-based indoor positioning and pedestrian tracking method
  • Smart phone-based indoor positioning and pedestrian tracking method
  • Smart phone-based indoor positioning and pedestrian tracking method

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Embodiment 1

[0071] The main idea of ​​the technical solution of the present invention is to collect various information of pedestrians through the self-contained functions of the smart phone, combine Wi-Fi, Bluetooth and geomagnetic related information, and combine various positioning information skillfully through the fusion equalization algorithm. To a large extent, the problem of low positioning accuracy caused by a single positioning method is improved. At the same time, the functions of daily necessities smart phones are excavated, which are cheap and convenient, and have high adaptability and reliability.

[0072] Such as figure 1 As shown, a method for indoor positioning pedestrian tracking based on smart phones includes the following steps:

[0073] Step 1: Collect the first-hand location information of pedestrians through the mobile phone's built-in Wi-Fi, Bluetooth, acceleration sensor, gyroscope, and pressure sensor, and provide processing information for subsequent algorithm ...

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Abstract

The invention discloses a smart phone-based indoor positioning and pedestrian tracking method. The method comprises the following steps: 1, preliminarily determining the position and the locus of a sensor in a phone; 2, fusing and preprocessing indoor information; 3, assisting the preliminarily positioned position information by using the fused information; and 4, calculating an accurate linear locus according to the fused information by using an improved equalization algorithm, and correcting the angle error of a pedestrian at a corner by using an improved algorithm in order to integrally realize accurate positioning and pedestrian locus tracking. The method solves the partial fusion problem of existing indoor position, integrates the functions of the smart phone, ingeniously fuses all indoor position through the improved algorithm, improves the positioning and locus accuracy of the indoor pedestrian, utilizes the functions of the daily necessity phone in life, and has the advantagesof low consumption and convenience.

Description

technical field [0001] The invention relates to the technical field of indoor positioning and tracking of pedestrians, in particular to a method for indoor positioning and tracking of pedestrians based on smart phones. Background technique [0002] With the development of mobile Internet, indoor positioning is more and more widely used in daily life. At present, indoor positioning technology, after years of development, is mainly realized by wireless communication technology, which generally includes RFID, Wi-Fi, Bluetooth, infrared, ultrasonic and ultra-wideband. What needs to be mentioned is the UWB positioning technology, whose accuracy can be maintained at 0.1m·0.5m, but its disadvantages are that the development cost is too high, the equipment is bulky, and its application is not wide. The advantages of Bluetooth technology positioning are low power consumption, small equipment, and an accuracy of only 3m to 15m. The main disadvantage of RFID technology is its short r...

Claims

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Application Information

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IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 李晓记曹燕平王玫罗丽燕周昱阎张懿昂晨潘桂泉胡云云
Owner GUILIN UNIV OF ELECTRONIC TECH
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