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Indoor positioning system based on bluetooth and indoor road network information

A technology of road network information and Bluetooth beacons, applied in the field of indoor positioning, can solve problems such as insufficient computing power on the terminal, large amount of calculation of filtering algorithms, and low positioning accuracy, so as to improve positioning accuracy, reduce calculation amount, and widely use value Effect

Active Publication Date: 2021-08-10
北京奇岱松科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, Bluetooth positioning technology can achieve meter-level and decimeter-level positioning results based on very small computing power, but the positioning accuracy is not high, and because Bluetooth usually needs to be set at a height of three to five meters, it cannot be used in scenarios such as atriums or auditoriums. Deploy Bluetooth, and Bluetooth positioning cannot be used where Bluetooth cannot be deployed
Bluetooth positioning fits the road network positioning technology, the Bluetooth positioning accuracy itself is not high, resulting in errors in road network fit, and the positioning accuracy cannot be guaranteed
The complex filtering algorithm has a large amount of calculation, which will lead to insufficient computing power on the end, and the device needs to be transmitted to the cloud for calculation

Method used

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  • Indoor positioning system based on bluetooth and indoor road network information
  • Indoor positioning system based on bluetooth and indoor road network information
  • Indoor positioning system based on bluetooth and indoor road network information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] Each Bluetooth beacon stores a bitmap file (bitmap), the bitmap stores the Bluetooth beacon id in the global road network structure, and the corresponding connection status information, the connection status is "1" means direct connection, connection A state of "0" indicates an indirect connection, and when the processor executes the computer program, the following steps are also implemented:

[0035] Step S110, traversing the bitmap stored in each Bluetooth beacon, and determining the Bluetooth beacon id whose connection status is "1" as the Bluetooth beacon id directly connected to the Bluetooth beacon.

Embodiment approach 2

[0037] Each bluetooth beacon stores the X-axis and Y-axis coordinate information and angle identification information of the corresponding position, and the angle identification represents the gap between the path where the bluetooth beacon is located and the path where the next directly reachable bluetooth beacon is located. Angle, when the processor executes the computer program, the following steps are also implemented:

[0038] Step S120, traversing the X-axis and Y-axis coordinate information and angle identification information of the corresponding positions stored in all Bluetooth beacons;

[0039] Step S130, based on each Bluetooth beacon, the X-axis coordinate difference and the Y-axis coordinate difference with the Bluetooth beacon are both between the preset distance minimum value and the preset distance maximum value, and there is the same angle identification information The bluetooth beacon id of is determined as the bluetooth beacon id directly connected to the ...

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PUM

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Abstract

The present invention relates to an indoor positioning system based on Bluetooth and indoor road network information, including a mobile terminal, a processor, a memory storing computer programs, and several Bluetooth beacons deployed on a preset global indoor road network structure. Corresponding local road network information is stored on the Bluetooth beacon, and the local road network information includes M Bluetooth beacon ids directly connected to the Bluetooth beacon, the Bluetooth beacon, and M Bluetooth beacons connected to the Bluetooth beacon. The local road network structure constructed by the beacon position information, the Bluetooth beacon and the connections between the M Bluetooth beacons directly connected to the Bluetooth beacon, M=1, 2, 3 or 4; the Bluetooth signal The bluetooth information is broadcast in real time, and the bluetooth information includes the corresponding local road network information; the mobile terminal is provided with a bluetooth collection module for collecting the bluetooth information. The invention reduces the calculation amount of indoor positioning and improves the accuracy of indoor positioning.

Description

technical field [0001] The invention relates to the technical field of indoor positioning, in particular to an indoor positioning system based on Bluetooth and indoor road network information. Background technique [0002] Existing indoor positioning technologies mainly include pure Bluetooth positioning technology, Bluetooth positioning combined with road network positioning technology, or the use of complex filtering algorithms to fuse inertial sensors, indoor semantic maps and road network information with Bluetooth positioning technology. Among them, Bluetooth positioning technology can achieve meter-level and decimeter-level positioning results based on very small computing power, but the positioning accuracy is not high, and because Bluetooth usually needs to be set at a height of three to five meters, it cannot be used in scenarios such as atriums or auditoriums. Deploy Bluetooth, and Bluetooth positioning cannot be used in places where Bluetooth cannot be deployed. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/33H04W4/80H04W64/00G01S5/02
CPCG01S5/0252H04W64/006H04W4/33H04W4/80
Inventor 赵仲夏黄真马东闫玮成赵亮
Owner 北京奇岱松科技有限公司