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A Pseudo-Lite Indoor Multi-source Fusion Positioning Method Based on Cloud Platform

A fusion positioning and pseudolite technology, applied in the field of indoor and outdoor seamless navigation and positioning and location services, can solve the problems of local optimum, poor scene applicability, and difficulty in evaluating the reliability of indoor fusion positioning, so as to achieve accurate pedestrian position perception and accuracy. The effect of correctness evaluation

Active Publication Date: 2022-05-17
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of local optimization and poor scene applicability in the traditional pseudolite search method, difficulty in evaluating the reliability of indoor fusion positioning, and the rationalization and calibration strategy of fusion positioning, the present invention proposes a cloud platform-based pseudolite indoor multi-source fusion positioning method

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  • A Pseudo-Lite Indoor Multi-source Fusion Positioning Method Based on Cloud Platform
  • A Pseudo-Lite Indoor Multi-source Fusion Positioning Method Based on Cloud Platform
  • A Pseudo-Lite Indoor Multi-source Fusion Positioning Method Based on Cloud Platform

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Embodiment Construction

[0037] In order to better illustrate the purpose and advantages of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0038] Such asfigure 1 As shown, a cloud platform-based pseudolite indoor multi-source fusion positioning method includes the following steps:

[0039] (1) With the support of indoor three-dimensional space information and the computing power of the cloud platform, according to the three scenarios of indoor entrances and exits, indoor corridors, and indoor open spaces, the indoor free activity area is divided into entrances and exits, according to the pedestrian speed threshold as a reference. Meshes for different scene properties such as corridors and open spaces;

[0040] For example, with the support of the computing power of the cloud platform, according to the threshold of people's travel speed less than 1m as a reference, accordin...

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Abstract

The invention discloses a pseudolite indoor multi-source fusion positioning method based on a cloud platform, and belongs to the technical field of indoor and outdoor seamless navigation positioning and location services. Based on the traditional pseudolite fusion positioning, with the computing power of the cloud platform, it adopts indoor three-dimensional spatial information and multi-sensor positioning information constraints, and adopts position search and position estimation methods for corridors and open areas respectively, solving the problem of traditional pseudolite The search method has the problems of local optimum and poor scene applicability. On this basis, WIFI, Bluetooth and inertial navigation aided grid point anomaly discrimination and inertial navigation azimuth rationality judgment are designed to solve the real-time calibration and indoor fusion of inertial navigation azimuth The positioning reliability evaluation problem is finally based on the pseudolite to realize multi-source fusion positioning, and realize the accurate position perception and correctness evaluation of pedestrians.

Description

technical field [0001] The invention relates to a pseudolite indoor multi-source fusion positioning method based on a cloud platform, and belongs to the technical field of indoor and outdoor seamless navigation positioning and location services. Background technique [0002] The vast majority of human activities are located in the indoor environment. With the increasing demand for indoor intelligent location services such as automatic parking and emergency rescue, how to quickly and accurately obtain pedestrian location information to meet pedestrian navigation, personnel management and emergency evacuation Such demands are the major difficulties currently faced. Realizing indoor and outdoor seamless navigation based on pseudolites is an important way to solve indoor and outdoor high-precision positioning. However, pseudolite indoor high-precision positioning faces serious multipath and non-line-of-sight positioning failures. How to rely on the huge computing power of the cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/46G01S19/47
CPCG01S19/46G01S19/47Y02D30/70
Inventor 盛传贞蔚保国甘兴利王维范广伟
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP