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Intelligent terminal user indoor and outdoor positioning method based on encounter mechanism and swarm intelligence

A technology for indoor and outdoor positioning and intelligent terminals, which is applied in the field of indoor and outdoor positioning for intelligent terminal users, and can solve problems such as system conversion incompatibility and affecting system application performance

Pending Publication Date: 2021-03-09
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0006] At present, the indoor and outdoor seamless positioning system has completely different positioning systems between indoor and outdoor (GPS or Beidou), and there are problems such as system conversion incompatibility between systems, which seriously affects the actual application performance of the system

Method used

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  • Intelligent terminal user indoor and outdoor positioning method based on encounter mechanism and swarm intelligence
  • Intelligent terminal user indoor and outdoor positioning method based on encounter mechanism and swarm intelligence
  • Intelligent terminal user indoor and outdoor positioning method based on encounter mechanism and swarm intelligence

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Embodiment

[0030] refer to figure 1 , a method for indoor and outdoor positioning of intelligent terminal users based on encounter mechanism and swarm intelligence, comprising the following steps:

[0031] 1) Acoustic ranging based on encounter mechanism: the ranging principle of acoustic ranging based on encounter mechanism is as follows: figure 2 As shown, in the actual application scenario, when two smart terminal users are within the line-of-sight range, the smart terminals they carry call the speaker and microphone of the smart terminal to transmit and record the Chirp sound signal through the Chirp sound APP. The acoustic signal includes the ID of the transmitting terminal and the sounding time Te, and the recorded acoustic signal implies the receiving time Tr corresponding to each acoustic event. The time Tr is easily obtained by using the time-domain generalized cross-correlation algorithm. For any As far as the node is concerned, from the signal received by any node, extract t...

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Abstract

The invention discloses an intelligent terminal user indoor and outdoor positioning method based on an encounter mechanism and swarm intelligence. The method comprises the following steps of: (1) sound ranging based on the encounter mechanism; (2) sound anchor point selection based on swarm intelligence; and )3) sound receiving point positioning based on secondary clustering. The method does not depend on infrastructure arrangement of an application environment, is not limited by an indoor or outdoor single application scene, and can fully utilize dynamic advantages of multiple users in an actual application scene to accurately and effectively realize seamless positioning of indoor and outdoor intelligent terminal users.

Description

technical field [0001] The invention relates to the research field of location services, in particular to an indoor and outdoor positioning method for intelligent terminal users based on an encounter mechanism and group intelligence. Background technique [0002] The indoor and outdoor seamless positioning of smart terminal users belongs to the research technology of location services, which has important application value in scenarios such as pedestrian path planning in tourist attractions, personnel positioning in industrial manufacturing workshops, and location security for elderly people living alone. [0003] Smart terminals include smart phones, tablet computers, smart watches and other smart products that users can carry with them. Among these terminals, smart phones have become the necessities of life for end users. Smartphones have high storage, high computing power, and are embedded with rich sensors. The standard dual microphones are like human ears, and have the ...

Claims

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Application Information

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IPC IPC(8): G01S5/18G06N3/00
CPCG01S5/18G06N3/006Y02D30/70
Inventor 宋浠瑜王玫仇洪冰刘争红罗丽燕周陬
Owner GUILIN UNIV OF ELECTRONIC TECH
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