Automatic alarm device effectively aiming at intentional shielding and smearing of camera

Abstract

The invention relates to the technical field of security and protection monitoring, and discloses an automatic alarm device effectively aiming at intentional shielding and smearing of a camera. The automatic alarm device comprises a fixed plate, the bottom of the fixed plate is fixedly connected with a spray pipe, the top of the fixed plate is fixedly connected with a water collection tank, and the top of the water collection tank is fixedly connected with a metal block. And the bottom of the interior of the water collection tank is fixedly connected with a water outlet tank. According to the automatic alarm device effectively aiming at intentional shielding and smearing of the camera, when the water amount in the water collection tank reaches a certain value, a plug moves downwards, water in the water collection tank is further sprayed to the camera body through a spray pipe, and therefore the effect of automatically cleaning dust on the surface of the camera is achieved. When the camera is shielded, the magnetic field intensity of an electromagnetic device is reduced, a rotating disc rotates 90 degrees anticlockwise, a second limiting rod is further made to move into a limiting groove, a buzzer gives an alarm, and therefore the effect of automatically giving an alarm when the camera is shielded is achieved.

Description

Technical field[0001]The present invention relates to the field of security monitoring techniques, in particular an automatic alarm device that is effective for deliberately occluding and applying the camera.Background technique[0002]Security monitoring is the application of fiber, coaxial cable or microwave to transmit video signals inside its closed loop, and forms an independent and complete system from camera to image display and recording, can real time, image, and true reflection of the monitored object, In a harsh environment, instead of artificial monitoring, recorded through the video recorder.[0003]After the camera is working for a while, there is often dust stacked on the lens glass, so that the front glass mirror surface is covered with stains, which seriously affects the observation of the camera, and the process of manual cleaning is more laborious, and the existing camera is There is no alarm function when it is intentionally blocked, and people can't quickly find tha...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automatic alarm device that is effective for intentionally blocking and smearing the camera, which has the advantages of automatically cleaning the dust on the surface of the camera and automatically alarming when the camera is intentionally blocked, and solves the problem that the monitoring camera is working. After a period of time, there will often be dust accumulation on the lens glass, making the front glass mirror of the camera covered with stains, which seriously affects the observation and monitoring function of the camera. Alarm function, people cannot quickly find that the camera is blocked, which may cause some property damage problems

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