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Method and system for detecting installation looseness of camera based on video intelligent analysis

An intelligent analysis and camera technology, applied in television, image communication, supporting machines, etc., can solve problems such as looseness and hard to find, heavy camera maintenance workload, etc., to reduce maintenance workload, improve safety, and reduce work pressure and workload effects

Pending Publication Date: 2022-04-26
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome at least one defect in the prior art, and provide a method and system for detecting looseness of camera installation based on video intelligent analysis, which is intended to solve the problem of large maintenance workload and looseness of cameras for operation and maintenance personnel. Hard-to-find problems

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  • Method and system for detecting installation looseness of camera based on video intelligent analysis
  • Method and system for detecting installation looseness of camera based on video intelligent analysis
  • Method and system for detecting installation looseness of camera based on video intelligent analysis

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Embodiment 1

[0033] see figure 1 , the embodiment of the present invention discloses a method for detecting loose camera installation based on intelligent video analysis, including the following steps:

[0034]After the camera is installed, initialize and calibrate the maximum shake amplitude of the camera in normal operation scenarios (including train passing conditions), obtain the shake amplitude value of the normal shake of the screen when the camera is installed firmly, and save it accordingly.

[0035] During the operation and maintenance period, the jitter amplitude value of the camera image jitter is regularly calculated, and the calculated jitter amplitude value of the camera image jitter is subtracted from the pre-saved jitter amplitude value of the normal image jitter corresponding to the camera to obtain the change difference. The difference is compared with the pre-saved alarm threshold corresponding to the camera, and if it exceeds the alarm threshold, an alarm is issued. Fu...

Embodiment 2

[0045] The embodiment of the present invention discloses a system for detecting loose camera installation based on video intelligent analysis, including a camera and an analysis server, the camera is used to shoot video pictures, and the analysis server is used to obtain video picture data taken by the camera, and calculate The jitter amplitude value of the camera image jitter, subtract the calculated jitter amplitude value of the camera image jitter from the pre-saved corresponding normal image jitter value of the camera to obtain the change difference, and then compare the change difference with the pre-saved jitter value The alarm threshold corresponding to the camera is compared, and if the alarm threshold is exceeded, an alarm is issued.

[0046] Further, the analysis server is used to subtract the calculated shake amplitude value of the camera image shake from the pre-saved shake amplitude value corresponding to the normal image shake of the camera to obtain a change diff...

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Abstract

The invention relates to a method and system for detecting installation looseness of a camera based on video intelligent analysis, and the method comprises the following steps: carrying out the initialization calibration of the maximum jitter amplitude of the camera in a normal operation scene after the camera is installed, obtaining the jitter amplitude value of the normal jitter of a picture under the condition that the camera is firmly installed, and carrying out the calibration of the jitter amplitude value; correspondingly storing; during operation and maintenance, a jitter amplitude value of camera picture jitter is calculated regularly, a change difference value is obtained by subtracting the calculated jitter amplitude value of camera picture jitter from a pre-stored jitter amplitude value of normal picture jitter corresponding to the camera, and the change difference value is compared with a pre-stored alarm threshold value corresponding to the camera. And if the alarm threshold value is exceeded, giving an alarm. According to the invention, cameras with potential safety hazards, such as falling cameras and loose cameras, can be rapidly screened out, targeted maintenance is carried out, and the maintenance workload is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of video monitoring, and in particular relates to a method and system for detecting loose camera installation based on video intelligent analysis. Background technique [0002] The installation methods of cameras in existing rail transit mostly adopt a single bracket type, hanging type or ceiling type. In places where the environment is relatively harsh beside the track or on the top of an elevated station, the camera is in a state of vibration and corrosion for a long time It is easy to loosen, corrode and rust the fixing parts such as anchor bolts, which will cause the camera to fall, which will not only cause damage to the camera, but also affect the driving safety and the personal safety of pedestrians, and there are certain safety hazards. [0003] Cameras installed on tunnels or elevated roads are periodically affected by wind pressure and vibrations of vehicles passing by during operation, and the scr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00G08B21/18F16M11/04F16M13/02
CPCH04N17/002G08B21/185F16M11/04F16M13/02
Inventor 刘魁徐军陆诗钊杨承东张伟刘涛胡祖翰池春玲于博
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP