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A low-cost indoor positioning method and system

An indoor positioning, low-cost technology, applied in the field of data processing, can solve the problems of accumulated errors and low accuracy, achieve low calculation load, significant social significance and practical value, and meet the needs of low-cost indoor positioning

Active Publication Date: 2019-03-19
深圳市摩仑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People also use inertial navigation devices to achieve positioning, but the accuracy is not high and errors are accumulated

Method used

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  • A low-cost indoor positioning method and system
  • A low-cost indoor positioning method and system
  • A low-cost indoor positioning method and system

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Experimental program
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Embodiment Construction

[0042] Aiming at the low-cost indoor positioning problem of intelligent equipment (including smart phones, wearable devices, and intelligent robots, etc.), the present invention proposes a new implementation device, method and system; using this device positioning method and system, the indoor environment There is no need to deploy complex auxiliary road signs, just use indoor adjustable light sources (for example: frequency-controllable LED lights) and modulated light receiving sensors (for example: extremely low-cost photodiodes or photoelectric sensors that come with mobile phones), you can Sub-meter positioning accuracy can be achieved, the whole method is simple and easy to implement, and the cost is low. The present invention is made up of hardware device and core algorithm, below we expand discussion on these two aspects respectively:

[0043] like figure 1 As shown, the hardware composition: a modulatable light source (such as frequency-controllable white LED or infra...

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Abstract

The invention provides a low-cost indoor positioning method and a low-cost indoor positioning system. The low-cost positioning method comprises a receiving step, a signal resolving step, a Gaussian process data modeling step, and a positioning step. According to the receiving step, a synthesized light source signal transmitted by a modulation light receiving sensor is received. According to the signal resolving step, the synthesized light source signal transmitted by the modulation light receiving sensor is resolved, and then intensity values of light source signals of various channels are acquired. The simple and low-cost modulation light receiving sensor capable of modulating LED lamps is adopted, and the low cost of the low-cost indoor positioning technology is realized by adopting fusion of various methods such as light optimal coding and decoding, multi-light source light component resolving, and Bayes state filtering. The calculation load of the system is low, and only the simple Bayes iteration is required, and the nanometer-level positioning precision is realized, and therefore the requirements of most intelligent devices on the low-cost indoor positioning are satisfied.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a low-cost indoor positioning method and system. Background technique [0002] With the rapid development of the Internet and smart hardware technology, smart devices such as smart phones, smart wearables and service robots have been widely used in the civilian service industry. When people or robots exchange information through the Internet, they also need to interact with the surrounding physical environment. One of the important interactions is to obtain their own spatial position relative to the surrounding environment, that is, to solve the problem of where. GPS is the most commonly used positioning and navigation system at present, but it cannot work normally in the indoor environment; in view of this shortcoming, people use the radio communication system to develop an indoor GPS positioning system, but this system needs to build additional radio base stations, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/16G01C21/16H04B10/114H04B10/116
CPCG01C21/165G01S5/16H04B10/1141H04B10/116
Inventor 魏章平陈锴耀周学浩
Owner 深圳市摩仑科技有限公司
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