Omnidirectional-array ultrasonic abnormally-moved target monitoring system and movement locus tracking method

Abstract

The invention discloses an omnidirectional-array ultrasonic abnormally-moved target monitoring system, which consists of a spherical support and a plurality of detectors, wherein the detectors are arranged on a spherical surface formed by the spherical support, each detector is a ultrasonic receiving-transmitting integrated sensor, the ultrasonic transmission direction of the detector is overlapped with the radial direction of the sphere, and the distance from each detector to the spherical center is identical. The invention also discloses a movement locus tracking method based on the system. The omnidirectional-array ultrasonic abnormally-moved target monitoring system and the movement locus tracking method have beneficial effects that by building the ultrasonic spherical array, all-round monitoring for abnormally-moved targets or structural deformation inside a closed space can be realized, the influence of the complicated environment factors is considered in the monitoring, and the abnormally-moved target can be automatically discovered, located and automatically tracked. Wide application range is realized, not only can the target with slow variation such as structural deformation be monitored, but also the target with rapid variation such as an illegal invade object can be monitored.

Description

technical field [0001] The invention relates to an ultrasonic sensing technology, in particular to an omnidirectional array ultrasonic abnormality target monitoring system and a motion trajectory tracking method. Background technique [0002] From a broad perspective, the monitoring of abnormal moving targets in enclosed spaces includes the monitoring of slowly changing targets such as structural deformation, and the monitoring of rapidly changing targets such as illegal intrusion objects. At present, the technical means used to monitor abnormal moving targets in closed spaces include camera, laser, infrared, distributed optical fiber, etc. Most of the above-mentioned technologies can only be monitored in a specific direction, and multi-directional spatial monitoring needs to be achieved by relying on multi-point networking or the rotation of the pan-tilt support. However, there are still many monitoring blind spots in the space. For illegal intrusion, monitoring technologi...

AI Technical Summary

Problems solved by technology

How to realize all-round monitoring of abnormal moving targets in closed spaces, and at the same time make the monitoring have a wider scope of application, which can be used not only for the monitoring of slowly changing targets such as structural deformation, but also for the monitoring of rapidly changing targets such as illegal intrusion objects, There is still no proper technical method

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