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Visible light positioning method and system based on reverse learning adaptive flower pollination

A technology of reverse learning and positioning method, which is applied in positioning, radio wave measurement system, biological model, etc., can solve the problems that the accuracy of the least square solution is greatly affected, the degree of complexity becomes higher, and the positioning accuracy is reduced, so as to improve Indoor positioning accuracy, guaranteed flatness, and improved convergence speed

Pending Publication Date: 2021-05-25
JILIN INST OF CHEM TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

AOA combined with RSSI's indoor positioning algorithm, the receiver deploys a sensor array and combines with the two algorithms, but the complexity increases and the cost increases
RSSI is mainly used with the least squares method to solve the target, but because the ranging error has a great influence on the accuracy of the least squares solution, it will reduce the positioning accuracy

Method used

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  • Visible light positioning method and system based on reverse learning adaptive flower pollination
  • Visible light positioning method and system based on reverse learning adaptive flower pollination
  • Visible light positioning method and system based on reverse learning adaptive flower pollination

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Experimental program
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Effect test

Embodiment 1

[0033] Step 1 Positioning

[0034] Step 1.1 Visible light positioning

[0035] In the indoor space, 9 LED lights are set as information transmitters, which are symmetrically distributed at equal intervals. Mount the LEDs on the ceiling h meters from the ground. The position of the LED is marked as r 1 =(x 1 ,y 1 ,,h),r 2 =(x 2 ,y 2 ,h),…,r 9 =(x 9 ,y 9 , h), the mobile terminal is placed at any position on the ground marked as t=(x, y, z), and the PD is installed on the mobile terminal as a receiver. The positioning process of the LED light source transmitter and the PD receiver receiving the optical signal is as follows: figure 1 .

[0036] Light source arrangement plays a key role in visible light indoor positioning. There are many optimization schemes for LED indoor arrangement, such as four light source distribution, grid light source layout, circular light source layout, oval light source layout, etc. The invention evenly divides the indoor top space into 100...

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Abstract

The invention discloses a visible light positioning method and system based on reverse learning adaptive flower pollination. The method comprises the steps of 1, positioning; 1.1, visible light positioning; installing the LED on a ceiling which is h meters away from the ground; placing the mobile terminal at any position on the ground, installing the PD on the mobile terminal as a receiver, and marking the LED, the mobile terminal and the PD respectively; 1.2, performing RSSI positioning is carried out; and 2, flower pollination positioning; 2.1, improving a flower pollination positioning algorithm; and 2.2, performing population initialization based on a reverse learning strategy. The method has the advantages of higher positioning precision, higher calculation speed, stable positioning algorithm and the like.

Description

technical field [0001] The invention relates to the field of indoor visible light positioning, in particular to a received signal strength indication (Received Signal Strength Indication, RSSI) visible light positioning system based on an improved adaptive flower pollination algorithm. Background technique [0002] In recent years, the visible light communication (Visible Light Communication, VLC) technology has developed rapidly, and the visible light positioning technology based on the visible light communication technology has also attracted more and more scholars' attention. Compared with radio frequency positioning systems, visible light indoor positioning has the advantages of anti-electromagnetic interference, strong confidentiality, no radiation, and high-precision positioning, making it more widely used in various large supermarkets and public places. In the positioning technology, the global satellite positioning system (GlaobalPositioning System, GPS) is widely us...

Claims

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Application Information

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IPC IPC(8): G01S5/16G06F30/25G06F30/27G06N3/00
CPCG01S5/16G06N3/006G06F30/25G06F30/27G06F2111/06
Inventor 张慧颖于海越卢宇希王凯梁誉张洋羊于铭正任永旺牟昊李明浩
Owner JILIN INST OF CHEM TECH