Passive passive intelligent tracking and positioning method, system, storage medium, and tracking and positioning terminal

Abstract

The invention belongs to the technical field of wireless communication and artificial intelligence, and discloses a passive passive intelligent tracking and positioning method, system, storage medium, tracking and positioning terminal, Wi-Fi equipment to collect CSI information; CSI conjugate multiplication algorithm between antennas to extract each The dynamic propagation path components of multipath signals; the channel parameter estimation algorithm estimates the signal parameters of the dynamic propagation paths of each multipath signal; combined with the artificial intelligence algorithm, each Wi-Fi device independently estimates the human body movement trajectory; using multiple The device motion trajectory fusion algorithm fuses the human body motion trajectory obtained by different Wi-Fi devices in the fourth step. The invention uses multi-channel parameters to jointly track the human body motion trajectory, and combines artificial intelligence algorithms to avoid the problems of low precision and poor robustness in the prior art. The present invention uses a plurality of Wi-Fi devices to jointly track the human body movement trajectory, avoids the problem of low human body tracking and positioning accuracy in the prior art, and improves the indoor passive tracking and positioning accuracy of the human body.

Description

technical field [0001] The invention belongs to the technical field of artificial intelligence and wireless communication, and in particular relates to a passive passive intelligent tracking and positioning method, system, storage medium, and tracking and positioning terminal. Background technique [0002] In recent years, the passive passive tracking and positioning technology that does not carry any equipment has attracted much attention. It aims to track and locate the human body indoors. Specific applications include the elderly, patient safety monitoring, smart home, etc. Great development potential and very broad application prospects. Most of the existing indoor target tracking methods require the target to carry a special device or a wearable device, but it is unrealistic to carry the device in some cases. Existing passive trajectory tracking and positioning technologies include ultrasonic, infrared, LED visible light, Wi-Fi, etc. At present, the research on Wi-Fi-...

AI Technical Summary

Problems solved by technology

[0004] (1) The existing Dynamic-MUSIC system, IndoTrack system, etc. only use a single channel parameter (signal angle of arrival or Doppler frequency shift) to perform passive passive tracking and positioning of the human body, which is limited by the estimation accuracy of a single channel parameter. Low positioning accuracy and poor robustness

[0005] (2) The existing Dynamic-MUSIC system, IndoTrack system, etc. only use a small number of Wi-Fi devices for passive passive tracking and positioning of the human body. Limited by the number of Wi-Fi devices, the tracking and positioning accuracy is low and the robustness poor

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