Camera and electromagnetic wave coordinated positioning and tracking method and camera and electromagnetic wave coordinated positioning and tracking system

Abstract

The invention particularly relates to a camera and electromagnetic wave coordinated positioning and tracking method and a camera and electromagnetic wave coordinated positioning and tracking system. The camera and electromagnetic wave coordinated positioning and tracking method includes the steps of collecting electromagnetic information sent by a test terminal and generating first positioning data of the test terminal according to the electromagnetic information and space position information of all wireless signal receivers in an electromagnetic wave transceiving network; acquiring a target camera closest to the test terminal and second positioning data according to the first positioning data and the space position information of all cameras; recording the second positioning data and the electromagnetic information in a test terminal moving process in real time, and establishing an indoor area fingerprint database; positioning a target terminal by coordinating the fingerprint database with the cameras. The camera and electromagnetic wave coordinated positioning and tracking method and the camera and electromagnetic wave coordinated positioning and tracking system have the advantages that the fingerprint database can be established quickly without mounting extra software on the positioned target, so that use ratio of existing indoor devices such as the cameras is increased substantially, time and labor costs consumed for establishing the fingerprint database are reduced, and indoor positioning precision, robustness and practicality are improved.

Description

technical field [0001] The invention relates to the field of indoor positioning, in particular to a method and system for coordinated positioning and tracking of a camera and electromagnetic waves. Background technique [0002] As the requirements for sensing people's activities in space become more and more frequent and precise, the demand for services based on location information is also becoming stronger. First of all, in terms of the equipment required for positioning, the positioning system is divided into active positioning system and passive positioning system. Locate the target to carry a specific device or install related programs. However, in some environments where location information needs to be obtained, the target does not want to carry related equipment or install related programs. Therefore, passive scenarios have become a research hotspot. [0003] In passive positioning, the currently commonly used non-electromagnetic signal methods are infrared positio...

AI Technical Summary

Problems solved by technology

[0006] 1. The camera positioning method cannot realize the identification of the target, so as to carry out continuous tracking, especially when multiple cameras perform continuous positioning and tracking on the same target, there are difficulties and it is easy to lose the target;

[0007] 2. Camera positioning for multi-target positioning and tracking is prone to problems such as target loss and target misalignment due to mutual occlusion and other effects;

[0008] 3. Wi-Fi and other electromagnetic signal fingerprint positioning, it takes time and manpower to establish a fingerprint database in the early stage, and because the spatial fingerprint is easily disturbed and cannot be updated in real time, it is difficult to maintain the accuracy of the positioning system, the robustness is not good, and the practicability Not strong

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