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FAQ

There are cameras at the fork in the expressway
The third is to monitor the camera, this camera has a spherical, cylindrical, square box and so on. Some of these cameras with LED lighting device, at night to keep the light to ensure that the camera vision clear. Set the purpose of these cameras is mainly to capture the various types of information applied to the security prevention and control, according to the image records that the facts of the case, locked so that arrested all kinds of criminal suspects
Will the video surveillance camera screen will jump out of this camera settings like the option?
Is the camera menu is transferred out, the general ball machine class camera will appear such problems, you can power the way to cancel the camera!
Monitor the camera 1 road 4 what is the difference
Very simple This is for the camera's hard disk video recorder to the general are at least 4 Road 8 Road 16 Road 32 Road, a camera all the way, there are 16 points can be connected to 16 points is 16 cameras.
The working principle of the camera with infrared light
Infrared emission diode (IR LED) infrared lamp principle is: by the infrared light-emitting diode matrix composed of light. Infrared emission diode from the infrared radiation efficiency of high materials (commonly used gallium arsenide GaAs) made PN junction, plus forward bias voltage to the PN junction injection current excitation infrared light. Spectral power distribution for the central wavelength of 830 ~ 950nm, half-peak bandwidth of about 40nm or so, it is narrowband distribution, for ordinary CCD black and white camera can feel the range. The emission power of the infrared light emitting diode is expressed by the irradiance μW / m2. The maximum radiation intensity of the infrared diode is generally in front of the optical axis and decreases with the increase of the angle between the radiation direction and the optical axis. The radiation intensity is 50% of the maximum value of the angle is called the half intensity radiation angle, that is, half power angle. The radiation angle of the infrared light emitting diodes of different packaging process models is different.
Does the surveillance camera itself have a record storage function?
Usually used in analog surveillance cameras are generally only with the signal output itself does not record storage function
How to use the network cable to connect the surveillance camera?
Network cable to do monitoring line in two ways, but depends on the camera's video transmission.
I would like to ask how the video surveillance camera is powered?
??Wiring, or to use two lines of good, if their own home, then, with a control line does not matter, but to the customer with the words, or two good, so look more professional, the probability of the problem comparison Smaller.
How to monitor the camera with the venue, what type of camera installed in what kind of site, the camera installed how much the number of lenses should be equipped with light board.
Production of the camera all know, whether it is LED light board or array light board, as long as the infrared light board are divided degrees. Commonly common are 30 °, 45 °, 60 ° and 90 °. Lens and light board with 30 ° with 12mm and 16mm, 45 ° with 8mm, 60 ° with 6mm, 90 ° with 3.6mm or 4mm.