Synchronizer for camera

Abstract

The invention provides a synchronizer for a camera. The synchronizer comprises a square wave output unit, an exposure synchronizing unit and a stroboscopic synchronizing unit, wherein the square wave output unit is used for generating and outputting a power frequency square wave; the exposure synchronizing unit is connected with the square wave output unit and is used for generating a control sequence signal by using the power frequency square wave outputted by the square wave output unit as a reference source, so as to control an exposure region of the camera and cause the exposure region of the camera to cover at least one partially predefined alternating current high-energy region; and the stroboscopic synchronizing unit is connected with the square wave output unit and is used for generating a stroboscopic pulse signal by using the power frequency square wave outputted by the square wave output unit as the reference source, so as to control a stroboscopic lightening region of a stroboscopic lamp and form an intersected set between the stroboscopic lightening region, the exposure region and the alternating current high-energy region. Compared with the prior art, the synchronizer for the camera has the advantages that the exposure synchronization and the stroboscopic synchronization are simultaneously realized under the conditions of very simple structure and ultralow cost.

Description

technical field [0001] The invention relates to the field of security technology, in particular to a camera synchronization device with simple structure and good effect. Background technique [0002] When the camera is in a low-illumination environment, its photosensitive component will not be able to image or the imaging noise will be very large. In fields such as video surveillance, in order to obtain better image quality in low-light environments, auxiliary light sources (such as fill lights) are generally used to illuminate the shooting area of ​​the camera. According to the luminous persistence of the fill light, there are three types: continuous fill light, strobe fill light, and exposure fill light. [0003] figure 1 These are the waveforms of three supplementary light driving signals, and this article takes the high level to turn on the light as an example to illustrate. The fill light is always on when the fill light is continuous, but the brightness is not easy ...

AI Technical Summary

Problems solved by technology

[0013] It can be seen that no matter what kind of solution in the prior art, it has the problems of complicated implementation and high product cost in realizing power frequency synchronization and strobe synchronization at the same time

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