Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

RSSR-based LED indoor positioning method and system thereof

An indoor positioning and LED light technology, applied in the field of RSSR-based LED indoor positioning methods and systems, can solve problems such as low positioning accuracy, unstable positioning, and complex systems.

Inactive Publication Date: 2016-08-03
ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICS +2
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the indoor positioning technology based on visible light communication in the prior art has problems such as complex system, low positioning accuracy, and unstable positioning.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • RSSR-based LED indoor positioning method and system thereof
  • RSSR-based LED indoor positioning method and system thereof
  • RSSR-based LED indoor positioning method and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] 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.

[0043] Such as figure 1 As shown, the present invention uses modulated light signals to distinguish different LED lights, utilizes six LED lights deployed indoors, and then reasonably selects four groups of LED lights as emission signals by measuring the intensity of the received light signals of the LED lights. The node selects three of the LED lights from the four groups of LED lights as transmitting nodes, calculates the received signal strength ratio RSSR and thereby determines the coordinates of a group of target objects. In four groups of LED emission nodes indoors, only use 3 of the LED lights to estimate the coordinates of the target object, and you can get C 4 3 =Coordinates of 4 groups of target objects, and then estimate the coordinates of these 4 groups of target objects, and use the distance...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an RSSR-based LED indoor positioning method and a system thereof. The method comprises the following steps: 1, arranging at least three groups of LED lamps in different positions of an indoor ceiling, wherein every group of the LED lamps emits an optical signal with identification information; 2, using a photoelectric detector to receive the optical signal of every group of the LED lamps, and respectively recording to the received signal intensities of the three groups of the LED lamps; and 3, calculating the position of the photoelectric detector according to the position information of every group of the LED lamps and the received signal intensity information. The system comprises a receiving device and at least three emitting devices. A plurality of LED lamps are adopted to position, the optical signal intensities of the plurality of LED lamps are measured multiple times, and multi-time measurement can reduce the influence of a single measurement deviation and reduce the position estimation error, so the degree of dependence on environment is low, the complexity of the system is low, and the positioning precision and the stability of the positioning system are improved. The method can be widely applied to various LED indoor positioning systems.

Description

technical field [0001] The present invention relates to the technical field of LED visible light indoor positioning, in particular to an RSSR-based LED indoor positioning method and system. Background technique [0002] In order to solve the "last mile" problem of positioning and navigation, various research institutions have carried out a lot of research on indoor positioning technology, and many new technologies have emerged, such as infrared, ultrasonic, Bluetooth, ultra-wideband, radio frequency identification, WiFi, LED Indoor wireless positioning technology such as visible light positioning technology effectively fills the gap of LBS in indoor positioning. Infrared positioning technology is mainly limited by line-of-sight propagation and short communication distances, requiring the deployment of a large number of transmitters and receivers, which has high complexity, high power consumption, and high cost. Ultrasound has good directionality, is not affected by line-of-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01C21/00
CPCG01C21/00G01C21/206
Inventor 周国富王金花罗智杰张伟男
Owner ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com