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A multi-source information fusion positioning method and device

A multi-source information fusion and positioning method technology, applied in the field of multi-source information fusion positioning and devices, can solve the problems of low positioning accuracy, slow response, and inability to complete positioning

Active Publication Date: 2021-05-11
刘禹岐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the GPS system can better solve the problem of outdoor positioning, for complex indoor positioning environments, the intensity of satellite signals drops rapidly due to the occlusion of walls and obstacles, resulting in low positioning accuracy or inability to complete positioning, and lack of height information. It is also accompanied by typical problems such as high energy consumption, slow response, and low efficiency, so it is difficult to apply to indoor positioning scenarios

Method used

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  • A multi-source information fusion positioning method and device
  • A multi-source information fusion positioning method and device
  • A multi-source information fusion positioning method and device

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Embodiment Construction

[0033] The present invention will be described in further detail below through specific embodiments and accompanying drawings.

[0034] Facing the ever-increasing application requirements for indoor mobile location information services, and aiming at accurately distinguishing floors in hollow areas of buildings, easy deployment (reducing dependence on positioning infrastructure as much as possible), and high-precision positioning application requirements, the present invention provides inertial navigation / Bluetooth positioning / Wi-Fi positioning is organically integrated, and a high-precision indoor positioning method and device based on inertial navigation / Bluetooth positioning / Wi-Fi multi-source information fusion is proposed to give full play to their respective advantages, expand positioning coverage, and improve positioning accuracy and real-time performance .

[0035] 1. The creation of a virtual environment

[0036] The invention constructs a virtual digital globe, and...

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Abstract

The invention relates to a multi-source information fusion positioning method and device. The method includes: 1) using the integrated sensor inside the intelligent terminal to perform track inference; 2) using the Bluetooth sensor to perform weighted centroid positioning and signal sequence matching positioning; 3) using the Wi-Fi sensor to perform weighted centroid positioning and signal sequence matching positioning; 4) The track inference result obtained in step 1) and the positioning results obtained in steps 2) and 3) are fused to obtain the final positioning result. The present invention adopts a fusion positioning method based on inertial navigation / Bluetooth / Wi-Fi, can effectively utilize the advantages of various positioning technologies, and realize high-precision positioning and navigation. The positioning cost of the present invention is low, the deployment is convenient, the coverage range is wide, the scene adaptability is strong, and real-time, continuous and accurate position information can be provided, and can be widely used in various indoor positioning scenes.

Description

technical field [0001] The present invention relates to a multi-mode fusion positioning technology in a three-dimensional scene. The fusion uses a variety of sensor information, including Wi-Fi, Bluetooth, acceleration sensors, gyroscopes, and direction sensors. Step size estimation, weighted centroid algorithm, Bluetooth / Wi-Fi signal sequence matching and multi-source information fusion module to realize an inertial navigation / Bluetooth / Wi-Fi multi-source information fusion positioning method and device. Background technique [0002] In recent years, with the continuous development of the economy and the continuous development and progress of virtual reality and graphics, 3D navigation and real-time positioning services have been widely used in many fields such as emergency rescue, personnel positioning, disaster prevention, logistics management, equipment detection, and personalized information transmission. Various wireless technologies are used in the field of positionin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/00G01C21/16G01C21/20
CPCG01C21/005G01C21/165G01C21/206
Inventor 刘禹岐
Owner 刘禹岐
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