Tips For Maintenance Of Surveillance Security Camera

If the surveillance security camera breaks down or has a small problem, it can be repaired. There is no need to buy new ones. Some common problems can be easily solved. However, you must understand the composition of surveillance and security cameras.

1. Monitoring and security camera shell

The monitoring security camera shell is mainly divided into waterproof series security camera shell, hemispherical security camera shell and gun series security camera shell The beauty of the camera mainly depends on the shell, which has also become an important factor in the price of the whole machine. The same configuration on the market may double the price of the whole machine if the camera shell is different, which is usually the main profit of the camera manufacturer.

2. CCD board chip

CCD board is mainly dominated by sharp and Sony chips, and there are some Korean and domestic solutions Basically, the schemes on the market are similar, but because the ingredients of components are different, some are all made in China, some are all imported, and some simply mix the ingredients, which leads to small differences in price and performance, which is also the main profit of businesses

3. Infrared light panel

The infrared lamp board is mainly the difference of lamp wicks. Each lamp wick is divided into many grades from 1 jiao to 1 yuan, but the wicks of Guanglei and Dingyuan are basically the mainstream.

4. Lens

The lens is an essential component in the TV monitoring system. The lens can cooperate with the CCD security camera to image the long-distance target on the CCD target surface of the security camera. There are many kinds of lenses. In terms of focal length, they can be divided into short focal length, medium focal length, focal length and zoom lens;  According to the size of the field of view, it can be divided into wide-angle, standard and telephoto lenses; In terms of structure, it can also be divided into fixed aperture fixed focus lens, manual aperture fixed focus lens, automatic aperture fixed focus lens, manual zoom lens, automatic aperture electric zoom lens, electric three variable lens (referring to the variable aperture, focal length and focus). Because the lens selection is appropriate or not, it is directly related to the quality of camera, so the lens must be selected reasonably in practical application.

5. Other accessories

There are mainly some combined and connected accessories, such as lens holder, video cable, screw, copper column, etc. these accessories are necessary, but it doesn't matter whether they are good or bad, so they are generally matched according to the process of security camera

Most of the common faults are the problems of analog system and digital system. The two aspects of inspection and maintenance can generally be solved

Maintenance of simulation system

1、 First, check whether the BNC connector is open welded, from security camera to splitter, from splitter to hard disk video recorder, and from splitter to matrix. If BNC is not welded well during installation, the welding will be started in a short time. Measure whether the video cable is broken.

2、 Check whether the power supply of 12V or 24V security camera is normal. Whether the power supply of hard disk video recorder, splitter and matrix is normal.

3、 Check whether the BNC interface of hard disk video recorder, divider and matrix is normal by means of swap. That is, connect the jumper with image channel to the no image channel to see if there is an image. If not, it means that the channel is bad.

Maintenance of digital system

1、 First check whether the LAN port indicator on the switch is on.

There are usually three situations:

(1) It lights up and flashes, indicating that the signal is normal.

(2) It just lights up and doesn't flicker, which indicates that there is a problem with the camera. Just disconnect the camera for a while and restart it (this is mostly the case)

(3) If it doesn't light up, first check whether the crystal head RJ45 is in good condition (both switches and cameras need to see) and whether the camera power supply is normal (12V or 24V). Check whether the network cable is broken.

2、 Check whether the host works normally. Enter the system to see if you can find the IP address of the channel without image (that is, the camera address). If not, check the switch and camera for problems.

3、 Restart the webcam, switch and host. As long as it is confirmed that the hardware is not bad, most reboots can be solved.

4、 If optical fiber transmission is used, it is necessary to see whether the optical fiber transceivers at both ends work normally.