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Visible light positioning method and system based on particle filter algorithm and intelligent equipment

A particle filter algorithm and smart device technology, applied in the field of visible light positioning methods and systems, can solve the problems of large position errors, achieve good economic and social benefits, reduce costs, and increase anti-interference capabilities

Inactive Publication Date: 2017-05-10
SHENZHEN GUOHUA OPTOELECTRONICS +2
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Problems solved by technology

Through the iterative process of this method, high-precision position tracking can only be obtained in a short period of time, which means that as time goes by, the estimated position error will become larger and larger, so it is necessary to improve

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  • Visible light positioning method and system based on particle filter algorithm and intelligent equipment
  • Visible light positioning method and system based on particle filter algorithm and intelligent equipment
  • Visible light positioning method and system based on particle filter algorithm and intelligent equipment

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Embodiment Construction

[0051] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0052] The present invention provides a visible light positioning method based on a particle filter algorithm and an intelligent device, comprising the following steps:

[0053] S1, the system converts the light signal intensity of the LED anchor node and LED reference point set in the room detected by the photodiode into a distance, and locates the target device;

[0054] S2, the system collects sensor information of the target device;

[0055]S3, the system receives the positioning information and sensor information of the target device, simulates the dead reckoning model of pedestrians, and optimizes the trajectory by using the particle filter algorithm, performs iterative optimization processing on the trajectory of the target device and determines the trajectory of the target device;

[0056] S4, the...

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Abstract

The invention discloses a visible light positioning method based on a particle filter algorithm and intelligent equipment, and the method comprises the steps: converting the intensities of optical signals, detected by a photodiode, of indoor LED anchor nodes and an LED reference point into distances, and carrying out the positioning of target equipment; carrying out the positioning of the target equipment; enabling a system to collect the sensor information of the target equipment; receiving the positioning information and sensor information of the target equipment, simulating a pedestrian track reckoning model, and determining the track of the target equipment; building an offline position database of the LED reference point; measuring the positioning information of the LED reference point, the target equipment and all LED anchor nodes in a system online environment, and finally determining the positioning tracking information of the target equipment. The visible light positioning method and system based on the particle filter algorithm and intelligent equipment improves the anti-sheltering capability of a tracking system, reduces the cost of the reference point, is high in tracking precision, is good in economic and social effects, and can be widely used in the field of indoor positioning and tracking.

Description

technical field [0001] The invention relates to the field of indoor positioning and tracking, in particular to a visible light positioning method and system based on a particle filter algorithm and an intelligent device. Background technique [0002] RSSI: Received Signal Strength Indication, received signal strength indication, is a positioning technology that measures the distance between the signal point and the receiving point through the strength of the received signal, and then performs positioning calculations based on the corresponding data. [0003] In recent years, researchers have begun to conduct in-depth research on indoor location tracking systems. Real-time and accurate information is required for the realization of indoor location tracking system. Many positioning and tracking technologies are based on WiFi technology, radio frequency technology, Bluetooth technology, GPS technology, etc. However, these techniques have their own shortcomings in indoor local...

Claims

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Application Information

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IPC IPC(8): G01S5/16
CPCG01S5/16
Inventor 周国富张伟男罗智杰刘强罗健坤
Owner SHENZHEN GUOHUA OPTOELECTRONICS
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