Q:HD camera and infrared camera difference

At present the HD camera refers to the HD 1080P or HD 960P or HD 720P camera, and 1080P called Full HD.

Q:Seeking a few surveillance camera manufacturers

Hai Kang, Dahua, Yu as, with the Corning are domestic good, to see where you want to use, the environment is different from the choice of the camera is also different, the price gap is also great,

Q:Monitor there is a camera monitor can not see, but the playback can see, how is it?

2, may be the front of the camera connection problems, you can check the next video cable and power cord connection.

Q:Camera gun 4MM, 6MM refers to what?

Camera gun parameters in the 4MM, 6MM, etc. refers to the camera is configured lens focal length.

Q: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!

Q:Video surveillance video storage how to calculate the hard disk needs I use the 720P camera, to store 3 months of video, need to use the hard disk?

720p format (750p): 1280 × 720 (horizontal 720 lines, progressive scan), a resolution of 1280 × 720p / 60Hz, the frequency is 45kHz General: a day about 24G.

Q:Remote monitoring principle

Camera control, arming and other control signals are downlink transmission, by the monitoring center to monitor the host to send a variety of control signals, RV-2000 video capture terminal receives the control signal, through the PTZ lens controller or direct control of the camera, or complete the deployment The

Q:How does the surveillance camera solve the backlight problem?

First, adjust the orientation of the entrance camera equipment, try to avoid direct sunlight from the outside, to a large extent to improve the entrance of the backlight appearance. For example, the bank door equipment needs to monitor the staff to monitor the entry and exit personnel, if we will be facing the entrance of the camera equipment, you can encounter a more severe anti-light appearance, will cause the camera to monitor the screen black, can not see what photos, At this time, the engineers will monitor the entrance of the camera flip, so that the camera lens out of the network of personnel, which is better than the role of the camera on the entrance device, you can better deal with backlight problems.

Q: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.

Q:Do you want to monitor the camera?

Strong delivery is to talk about the power adapter on the camera side, the transmission line is 220v. Suitable for camera from the camera collagen.