Intelligent cat-eye system triggering shooting based on luminous intensity and distance detection

Abstract

The invention discloses an intelligent cat-eye system triggering shooting based on luminous intensity and distance detection. Based on results of a luminous intensity analysis module and a distance measurement module, an external processor controls the activation of a camera. When the change curve of environment luminous intensity data exceeds a preset threshold curve, and the distance D between a target and a laser emitter measured by the distance measurement module is no greater than a preset distance threshold, the external processor outputs a trigger signal to activate the camera. When a visitor is close to a door, the intelligent cat-eye system can automatically start a doorbell calling system, and is intelligent and convenient to use. An emission mode having laser emission time less than 0.1 S, interval time greater than 0.1 S, and a period about 0.2 S can prevent eyes from being damaged by laser. Based on the determination of luminous intensity change and object distances, the intelligent cat-eye system activates a camera when luminous intensity drops suddenly and a target distance is closer, thereby avoiding misjudgement caused by going out of aisle lamps (illumination intensity can drop suddenly), and obtaining higher determination accuracy than a control method which only depends on luminous intensity detection.

Description

technical field [0001] The invention relates to an electronic cat's eye, in particular to an intelligent cat's eye system based on light intensity and distance detection to trigger camera. Background technique [0002] The traditional cat's eye uses optical imaging, which is inconvenient in actual use. For example, the viewing angle is not large enough, and the viewing range is limited. You have to get close to the door to see what's going on outside the door. It cannot be used without lights in the corridor at night. The eyesight of the elderly is poor, and the children are not tall enough, so it is not convenient for them to use. In addition to inconvenience, the more important thing is that there are potential safety hazards: cat-eye peepers have appeared on the market, through which criminals can clearly see the indoor situation from outside the door. crime facilitated. We often see related reports from the media: Criminals found no one in the house, removed the pee...

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However, the fly in the ointment is that the exis

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