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The working principle of the camera with infrared light
- First, the characteristics of infrared and infrared light light is an electromagnetic wave, with the same nature as the radio waves. Its wavelength range is from several nanometers (1nm = 10-9m) to about 1mm (mm). The visible wavelength is from 380nm to 780nm, the wavelength of visible light from long to short into red, orange, yellow, green, blue, blue, violet, the wavelength is shorter than the purple light, the wavelength of visible light is only a part of the visible light, visible light Called ultraviolet light, the wavelength is longer than the infrared light called infrared light. Infrared light wavelength between 780nm ~ 1000μm, located between the radio and visible light. Infrared light according to its infrared radiation mechanism is divided into semiconductor solid light (infrared emission diode IR LED) infrared light and heat radiation infrared light two. At present in the CCTV infrared camera in the former use more.s
Police surveillance camera and civilian What is the difference?
- Such as prisons, interrogation rooms, etc., need to use the explosion-proof damage to the camera, the police need to use the car head (plus lift rod), due to the increase in functionality, the cost will be relative to the increase, these are civilian do not need.s
Can the monitored camera be recorded?
- Of course, just add a pickup on the line.s
Monitor the camera live
- Generally the case is the reason for static electricity, in theory, if your camera is using a transformer, that is DC power supply, then basically can be excluded from the leakage caused by the low-voltage (DC12V) camera, if There is a strong power into the words, then the camera will not be able to use, and here to note is not only the camera will have static electricity on your own may also have static electricity, you may say the same two cameras have a One is not, but you have to know the principle of electrostatic discharge, only when you come into contact with the conductive body when the static electricity can be released, you will have the feeling of Ma. In fact, if the camera is used properly, you do not have to worry about whether it is with static electricity, if you really worry, you can ground the camera, the general ceiling has a fire pipe and bridge, you can choose them to ground.s
The monitor camera does not display the image on the display
- The camera directly connected to the hard disk video recorder, if there is no image, there is a problem line.s
Monitor the camera what models
- Longitudinal and under the "and too" series for the industry's top ten users recommend the brand. Product quality and cheap, trustworthy! Longitudinal and was with the major government, military, schools, enterprises and institutions are all cooperation.s
Monitor inside the infrared network camera infrared light automatically switch and synchronous switch What does this mean?
- Synchronous switch has not heard, another set according to set the time to switch. For example, set 18 points to night into black and whites
Monitor the use of the camera
- This is to see what you want to do with it, I was bought to watch the baby with a baby. Emperor as faith constant, shaking his head machine! Very useful!s
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