Multi-source information fusion positioning method and device

Abstract

The invention relates to a multi-source information fusion positioning method and device. The multi-source information fusion positioning method comprises the steps: (1) the track is deduced through asensor integrated in an intelligent terminal; (2) weighted centroid positioning and signal sequence matching positioning are conducted through a Bluetooth sensor; (3) weighted centroid positioning and signal sequence matching positioning are conducted through a Wi-Fi sensor; and (4) the track deduction result obtained in the step (1) and the positioning results obtained in the step (2) and the step (3) are fused, and the final positioning result is obtained. An inertial navigation/Bluetooth/Wi-Fi-based fusion positioning mode is adopted, the advantages of various positioning technologies canbe developed effectively, and high-precision positioning and navigation are achieved; and the positioning cost is low, deployment is convenient, the coverage range is wide, the very high scene adaptability is achieved, real-time, continuous and accurate position information can be provided, and the multi-source information fusion positioning method and device can be widely applied to 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...

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

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