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FAQ

What is the black box that monitors the camera connection?

DVR is usually used analog (DVR) and network (NVR) two, look at the interface behind the fuselage can distinguish. DVR according to a few video input will have several BNC input interface, NVR is not.

Night to monitor the infrared light is not bright because it is not open monitoring?

3: infrared detector or the camera is simply broken ... hand cover the camera above the infrared detector, if normal, then the infrared light will be bright

What is the difference between a network video encoder and a hard disk video recorder? And bolt machine cameras are the same as security monitoring? What kind of network video encoder used

Network video encoder is the use of front-end analog camera information encoded into digital information, and then transmitted through the network.

Buy monitor camera attention to what

1, how to identify civilian high-definition camera? In general, civilian-grade optional cameras are all to 420 lines, 480 lines, 520 lines, etc. to represent the clarity of the camera, that is, on the monitor level Number of lines scanned. So the so-called business mouth of the pixels will be insignificant, because often will be exaggerated, in fact, difficult to achieve, so the civilian choice of monitoring the head should not be a measure of pixels. According to the interpretation of professionals, the usual surveillance cameras only two grades: low 330 lines or so, high solution 480 lines or so, many domestic products marked 420 lines is the 330 line products

3 megapixel surveillance cameras store much day

Monitor video 24 hours per channel per day Recording space size calculation formula:

How to choose to monitor the camera and video capture card?

Fourth: whether the direct wiring or wireless transmission to install. In addition to the expensive price, the wireless network does save the camera installation trouble and unsightly, but need to pay attention to the problem of distance and obstacles. In principle, cement building materials will shorten the wireless transmission distance, metal materials will completely cover the wireless signal, the transmitter (at the camera side) and the receiver (at the host side) to stay away from other electrical appliances to avoid interference, such as the use of wireless networks , There must be more than 2 times the price of the monitoring equipment. We recommend that, unless necessary, try to use wired transmission to install.

Office area monitoring camera how to choose?

2, according to the size of the monitoring range, you can choose 4 mm, 6 mm, 8 mm and other lenses, these costs are the same, the smaller the number of millimeters, the greater the scope of monitoring, look closer, the greater the number of meters Small but look farther away

HD camera is said that his clarity, infrared camera is that it's night vision function, in order to highlight the main features of the name of a

1, the camera generally talked about the camera, it is natural to think of home cameras. In fact, surveillance cameras and home cameras are many different, first of all fundamentally design standards are different, one for industrial applications and design, one for home use and design, so they work in a long time, the use of the environment The volume is small, the monitoring machine with small size, and the home machine because all the control parts and tape all installed in the same chassis, so the volume to be much larger, and must be on-site manual control, can not achieve remote remote control ; In the key resolution, the home machine is generally about 300 lines in the horizontal, and monitoring machine for the blackboard on the blackboard, the horizontal resolution should be more than 400 lines. The JY-803 integrated color camera, 480TV line center resolution, 1Lux low illumination, with automatic white balance, backlight compensation and automatic electronic shutter adjustment function, built-in 22x optical lens.