Bluetooth signal positioning method, multi-signal fusion positioning method and system

A technology of bluetooth signal and positioning method, which is applied in wireless communication, service based on location information, short-distance communication service, etc. It can solve problems such as inaccurate calculation distance, impracticality, and large environmental influence factors, so as to achieve accurate positioning, The effect of reducing enterprise costs and facilitating on-site implementation

Active Publication Date: 2021-08-17
ZHEJIANG SUPCON TECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

And for the equipment to be positioned, the rssi attenuation equation under ideal conditions is not practical in the actual production environment, and the environmental factors are greatly affected, and the calculated distance is usually inaccurate

Method used

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  • Bluetooth signal positioning method, multi-signal fusion positioning method and system
  • Bluetooth signal positioning method, multi-signal fusion positioning method and system
  • Bluetooth signal positioning method, multi-signal fusion positioning method and system

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Embodiment Construction

[0037] In order to facilitate those skilled in the art to better understand the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The following is only exemplary and does not limit the protection scope of the present invention.

[0038] Before describing a positioning method based on Bluetooth signals of the present invention, some proper nouns are first explained:

[0039] Beacon: An electronic device that is fixed on the ground and emits a Bluetooth signal.

[0040] Best point: We consider the signal strength to be credible within one meter of the beacon. For example, the measured value of the signal strength at 1 meter away from the beacon is -60, if the collected signal strength is -40, then the position of the beacon corresponding to the signal is the optimal point.

[0041] Signal attenuation curve: The curve of signal strength changing with distance.

[0042] Centr...

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Abstract

The invention discloses a Bluetooth signal positioning method and a multi-signal fusion positioning method and system, and the Bluetooth signal positioning method comprises the steps: solving a distance from a beacon emission source based on a segmented attenuation model, determining an optimal point and controlling an advancing distance, and enabling a Bluetooth signal to have a small error when the fluctuation of the Bluetooth signal is large, calculating and judging the pace and angle of travel, and realizing real-time follow-up and automatically adjusting the target position to achieve precise positioning. The multi-signal fusion positioning method comprises the steps of, based on a Bluetooth signal positioning method, carrying out fusion positioning on personnel of Bluetooth, GPS, UWB and 5G base stations according to priorities of positioning signals, therefore, the practicability is high, and different positioning schemes can be adopted according to different environments.

Description

technical field [0001] The invention relates to the technical field of wireless signal positioning, in particular to a Bluetooth signal positioning method, a multi-signal fusion positioning method and a system. Background technique [0002] At present, there are many kinds of wireless signals for indoor and outdoor positioning, such as ZigBee, UWB (Ultra Wideband, carrierless communication technology), GPS, and Bluetooth signal positioning for low-speed short-distance transmission. Among them, ZigBee and UWB have high installation and deployment costs, and GPS can only achieve outdoor positioning. In contrast, Bluetooth positioning has low installation and deployment costs and low power consumption. [0003] Commonly used Bluetooth positioning algorithms include TOA (positioning based on time of arrival), TDOA (positioning based on time difference of arrival), AOA (positioning based on signal angle of arrival), and RSSI (positioning based on signal strength calculation dista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/80H04W52/02H04W64/00
CPCH04W4/023H04W4/80H04W52/0225H04W64/00Y02D30/70
Inventor 李晶张军伟魏传姚冰陈正胤
Owner ZHEJIANG SUPCON TECH
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