Assemble CCD plate, CMOS panel camera ir-cut, lens and lamp panel selection
CMOS camera to infrared lamp board choice: do the light board or light board panel connect a line above, is this point must be requested at the time of the light for 3 to 5 v voltage, light is not on when no voltage is 0 v. When selecting the lamp board, please check whether the manufacturer of the lamp board has left this ir-cut control line socket, which is convenient for wiring. If not, it will be difficult to find it. The heat and current test of the lamp board will not be detailed, only their own evening comparison test. It is to see sensitivity is moderate, do not appear at the critical point the condition of the light flash, if the light flash, then your switcher affirmation cannot stand, must pay attention to. Many people only know that the switcher is bad and think it's the switcher's fault, but don't know why.
Lens: the choice of CMOS camera lens is not looking for the cheapest, but we don't discuss to pure price war, true kung fu security recommend everyone to do their own brand of camera must use the lens of the pro series, clarity and allows F1.6 is different, with the good camera brightness in the evening, the better, the higher the resolution during the day, this is CMOS camera should pay attention to things, the CCD camera difference is small.
IR - CUT double filter switcher options: IR - CUT has been a large "failure" of the CMOS camera, again good CMOS machine, IR - CUT improper selection may also be lost, original camera now profit is low, if the customer returns, repair caused by the damage of IR - CUT, then lost.
IR - CUT now has had the very big progress, according to many years of experience, true kung fu security today main recommend using electromagnetic pendulum semimetal an IR - CUT, mainly start fast, BuKa dead, nothing to wear, long service life, specific to know kung fu security official website. Testing a qualified IR - CUT to open the internal first, to see if the internal structure is reasonable, the power switch must be at least 500 consecutive is not a problem, filter unbiased color test partial coke can not use day and night.