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Indoor hybrid positioning system and method based on inertial positioning and VLC for mobile phone

A hybrid positioning system and inertial positioning technology, which is applied in the field of indoor hybrid positioning systems, can solve the problems of complex devices and inconvenience to carry, and achieve the effects of wide application, strong practicability and simple operation.

Inactive Publication Date: 2015-04-29
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing indoor hybrid positioning system devices are complicated and not easy to carry, and propose an indoor hybrid positioning system and method based on mobile phone inertial positioning and VLC

Method used

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  • Indoor hybrid positioning system and method based on inertial positioning and VLC for mobile phone
  • Indoor hybrid positioning system and method based on inertial positioning and VLC for mobile phone
  • Indoor hybrid positioning system and method based on inertial positioning and VLC for mobile phone

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: The visible light downlink transmission module includes: a downlink transmission processor and a visible light LED;

[0033] Seeing the light downlink sending module generates a positioning coding signal by FPGA (EP2C8Q208C8), and the driving circuit amplifies the signal and loads it on the corresponding LED light. The visible light LED emits the modulated signal in the form of visible light.

[0034] The inertial and VLC hybrid positioning module includes: VLC positioning receiver, communication interface and built-in gyroscope, acceleration sensor and APP module in the mobile phone;

[0035] The light intensity in the positioning receiver is converted into an electrical signal by the photodetector PDA10A. After the signal is processed by FPGA, the modulation signal intensity of different LEDs can be extracted. The communication interface uses the chip FT311D to realize serial communication.

[0036] The mobile phone used is Samsung I9508, and the serial...

Embodiment 2

[0041] Using the same visible light downlink transmitting module as in Embodiment 1; positioning data sending module; positioning data receiving module; in the communication interface of the inertial and VLC hybrid positioning module, the Bluetooth module ATK-HC05-V1 is used.

[0042] Disconnect KEY (or connect GND), the Bluetooth module can send and receive data normally at this time, otherwise it cannot send and receive data normally. Install on the mobile phone: Bluetooth serial port assistant V1.97apk in the module supporting information. After installing the software, open the software, enter the search Bluetooth device interface, click the device to enter the selection operation mode, enter the password, and complete the pairing. The Bluetooth module should be connected successfully. Data can be exchanged. The light intensity signal can be transmitted to the mobile phone through the Bluetooth module.

[0043] The working steps of the above-mentioned indoor hybrid posit...

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Abstract

The invention provides an indoor hybrid positioning system and an indoor hybrid positioning method based on inertial positioning and VLC for a mobile phone. A downlink chain comprises a visible light downlink sending module and an inertia and VLC hybrid positioning module, wherein the visible light downlink sending module comprises a downlink sending processor and a visible light LED; the inertia and VLC hybrid positioning module comprises a VLC positioning receiver, a communication interface as well as a gyroscope, an acceleration sensor and an APP module which are arranged in the mobile phone. An uplink chain comprises a positioning data sending module and a positioning data receiving module, wherein the positioning data sending module comprises a Bluetooth module of an intelligent mobile phone; the positioning data receiving module comprises a terminal Bluetooth receiving module. According to the indoor hybrid positioning system and the indoor hybrid positioning method, integrated hardware equipment in the current intelligent mobile phone can be fully utilized, a positioning device is simplified, so that the positioning device is easy to operate and convenient to carry everyday; meanwhile, the push of relevant information about the positions can be realized by utilizing a target position; the system is wide in application, high in practicability and can be effectively applied in public places such as supermarkets and libraries in future.

Description

technical field [0001] The invention relates to an indoor hybrid positioning system and method based on mobile phone inertial positioning and VLC, and belongs to the technical field of visible light communication. Background technique [0002] The indoor positioning solution based on visible light communication (Visible Light Communication, VLC) technology uses white light emitted by white semiconductor light-emitting diodes (Light Emitting Diode, LED) as the carrier of positioning signals, so there is no electromagnetic radiation and is not limited by the application environment; and The transmission channel of VLC generally adopts the direct channel, and the multipath interference is relatively small, so the positioning scheme can achieve relatively high accuracy; in addition, the indoor positioning system based on VLC technology is compatible with the future VLC communication technology, so it does not need expensive hardware Equipment investment, the cost is relatively l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/18G01C21/20G01C21/00G08C17/02
CPCH04B10/116G01C21/18G01C21/165G01C21/206
Inventor 杨爱英杨伟杰冯立辉倪国强黄艺贤
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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