Cradle head fault detecting method and device

Abstract

The invention discloses a cradle head fault detecting method and a cradle head fault detecting device. The method comprises the following steps: A, sending a cradle head control instruction to a cradle head to be detected and acquiring continuously collected series images as images to be analyzed; B, extracting and analyzing the characteristics of the images to be analyzed to obtain the change condition of a background image and accordingly determining the change condition of the cradle head to be detected; and C, determining if the movement condition of the background image is consistent with the cradle head control instruction, and accordingly determining if the cradle head operates normally. The fault detection method and the fault detection device have higher adaptability to light change, image foreground target movement interference and random noise interference, has an expanded cradle head fault detection function for detecting the moving or static conditions of the cradle head and the specific movement direction and distance of the moving cradle head and can further estimate the movement speed of the cradle head and more accurately determine the reliability of the cradle head.

Description

[technical field] [0001] The invention relates to the technical field of video surveillance, in particular to a method and device for detecting a pan-tilt fault. [Background technique] [0002] In the video surveillance system, in order to increase the scope of the monitoring area, the video equipment is generally installed on the pan / tilt with a certain degree of freedom, and the monitoring of the same monitoring point from different angles can be completed by controlling the rotation of the pan / tilt. In order to ensure that the pan / tilt can rotate accurately according to the remote command control to achieve the purpose of monitoring, it is necessary to conduct regular inspections on the pan / tilt to ensure that the pan / tilt does not fail. [0003] Traditional PTZ fault detection adopts manual inspection method, which has the disadvantages of high labor intensity, untimely fault detection, and low efficiency. And the Chinese patent No. 200710119244 discloses "a method and ...

AI Technical Summary

Problems solved by technology

[0004] 1) It is easily affected by environmental lighting changes, random noise, and foreground target movement. The selection of the threshold depends to a large extent on the image content, and the adaptability is poor, which greatly reduces the effectiveness of automatic inspection of gimbal faults

[0005] 2) Its gimbal failure automatic inspection function can only monitor two states of the gimbal: motion and stillness, the function is relatively simple, and there is nothing to do about the wrong motion mode of the gimbal

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