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A Bluetooth-assisted indoor positioning method and system for PDR correction

An indoor positioning and Bluetooth technology, applied in location information-based services, specific environment-based services, instruments, etc., can solve problems such as PDR positioning accumulation errors, achieve high positioning accuracy, reduce power consumption, and simple technical principles

Active Publication Date: 2020-07-28
HANGZHOU DIANZI UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of accumulated errors in traditional PDR positioning, the present invention discloses an indoor positioning method and system for correcting PDR through Bluetooth

Method used

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  • A Bluetooth-assisted indoor positioning method and system for PDR correction
  • A Bluetooth-assisted indoor positioning method and system for PDR correction
  • A Bluetooth-assisted indoor positioning method and system for PDR correction

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0071] Such as figure 1 As shown, the indoor positioning system for Bluetooth-assisted PDR correction in this embodiment consists of a ground node module, an intelligent terminal module and a positioning server module. The specific description is as follows:

[0072] The ground node module is deployed in key positions where pedestrians walk on the ground indoors, such as corners, stairways, etc. It mainly includes a pressure detection module and a Bluetooth beacon module. The Bluetooth beacon module is configured in a discontinuous working mode. When the pressure detection module detects that pedestrians are stepping on, it triggers the Bluetooth beacon module to broadcast; otherwise, the Bluetooth beacon module is in a low-power standby state. In addition, the broadcast coverage of the Bluetooth beacon module is controlled within 2m, and the Bluetoo...

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Abstract

The invention discloses an indoor positioning method for correcting PDR with a Bluetooth auxiliary technology and a method thereof. The system comprises ground nodes, an intelligent terminal, and a positioning server. The ground nodes can be used for detecting stampede and broadcasting an identification number of the Bluetooth nodes to the intelligent terminal; the intelligent terminal can be usedfor receiving the identification number of the Bluetooth nodes and sending the identification number to the positioning server; and the positioning server is characterized in that by responding an indoor positioning map request of the intelligent terminal through Internet, an indoor positioning map is sent to the intelligent terminal. The indoor positioning method can effectively improve the PDRaccumulative error, and can greatly increase the PDR positioning precision.

Description

technical field [0001] The invention belongs to the technical field of indoor positioning, and in particular relates to a PDR indoor positioning method and system based on bluetooth-assisted correction. Background technique [0002] With the development of satellite positioning and navigation technology, LBS (Location-Based-Service) has gradually entered people's lives. Due to the popularity of smart terminal devices and the rapid development of location-based services, people have higher and higher requirements for the accuracy and stability of positioning results. GPS is a global positioning and navigation system developed by the United States, and it is also the most widely used and mature positioning system. However, the complexity of the indoor environment causes the signal to be blocked and interfered so that users often cannot receive the signal. Therefore, GPS cannot meet the needs of indoor positioning. [0003] With the continuous progress and development of soc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20G01C21/16H04W4/024H04W4/33H04W4/80H04W64/00
CPCG01C21/16G01C21/206H04W4/024H04W4/33H04W4/80H04W64/006
Inventor 姚英彪潘雷姚瑞丽许晓荣刘兆霆冯维严军荣姜显扬
Owner HANGZHOU DIANZI UNIV
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