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Method for constructing indoor fingerprint map based on mobile crowd-sourcing perception data

A mobile swarm perception and fingerprint map technology, applied in the direction of using re-radiation, measuring devices, instruments, etc., can solve the problem of large survey projects of fingerprint positioning methods, and achieve the effect of facilitating rapid deployment and reducing survey workload.

Active Publication Date: 2018-12-18
SOUTHWEAT UNIV OF SCI & TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an indoor fingerprint map construction method based on mobile crowd sensing data, which solves the problem of huge survey engineering in the existing fingerprint positioning method

Method used

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  • Method for constructing indoor fingerprint map based on mobile crowd-sourcing perception data
  • Method for constructing indoor fingerprint map based on mobile crowd-sourcing perception data
  • Method for constructing indoor fingerprint map based on mobile crowd-sourcing perception data

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Embodiment Construction

[0045] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0046] Such as figure 1 As shown, a method for building an indoor fingerprint map based on mobile crowd sensing data includes the following steps:

[0047] S1. Collect the user's fingerprint information and dead reckoning information through the mobile terminal, and upload them to the server;

[0048] S2. Analyze the fingerprint information and dead reckoning information through the server to obtain fingerprint similarity and user trajectory data, and use the fingerprint similarity and user trajectory data to construct a "vertex-constraint" graph;

[0049] S3. Optimizing the "vertex-constraint" graph through a graph optimization algorithm to obtain a fingerprint map.

[0050] Such as figure 2 As shown, the const...

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Abstract

The invention relates to a method for constructing an indoor fingerprint map based on mobile crowd-sourcing perception data. The method comprises the following steps of: collection of crowd-sourcing perception data, closed-loop detection and construction of a graph, and a graph optimization algorithm based on Graph SLAM. By using a mobile user in the environment as a perception unit to implement automatic collection of fingerprint data and user trails, which can reduce the survey workload required for locating fingerprints, and is beneficial to rapid deployment of the fingerprint locating system in an unknown environment.

Description

technical field [0001] The invention relates to the technical field of indoor fingerprint positioning, in particular to an indoor fingerprint map construction method based on mobile crowd sensing data. Background technique [0002] With the development of the Internet of Things and the demand for location-based service applications, indoor positioning has received more and more attention in recent years. Due to the occlusion of urban buildings, the outdoor positioning technology represented by GPS is no longer available indoors, so people need a convenient, universal and accurate indoor positioning technology solution. In fact, domestic and foreign researchers began to explore indoor positioning more than 20 years ago. Some attempts include deploying specialized hardware devices, such as magnetic markers, infrared, RFID, and laser sensors, at some key locations indoors, and positioning can be achieved by measuring distance or orientation. Although these techniques can prov...

Claims

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Application Information

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IPC IPC(8): G01S11/06
CPCG01S11/06
Inventor 刘冉梁高丽李少乾肖宇峰张华何永平张静刘满禄付余路
Owner SOUTHWEAT UNIV OF SCI & TECH
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