How to solve the video interference? Longitudinal Chi Wo was to help you busy! - Video interference,

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Science and Technology Beijing was limited longitudinal Chi Wo Company Is a security monitoring equipment manufacturers and distributors of Health, the Company concluded a number of common security monitoring Product Problems, hope that we have learned from the knowledge they want. Today we'll talk about how to solve the video interference approach.

If you install or construction site, there are some of the equipment or facilities, please consider using video interference devices: large transformers, Switching Power Supply , Wireless microwave towers, cell phone base stations (GSM, 3G, PHS), high-voltage transmission line, substation, inverter air conditioner, frequency Pump , Frequency conversion motor, Wireless Radio Transmitter (AM / FM); power lines and video lines in parallel, the new district with temporary power and may have more than one transformer, wireless router, install a lightning protection device video, and possibly more ground , solar panels to supply electricity, in Factory Workshop in particular, aluminum, steel, cutting, cranes and other places.

1. Interference has become Contractors To face the problem;
2. Interference has become a problem for your unexpected;
3. Cause interference problems are not resolved your trouble clearing;
4. Interference problem, you have to pay attention to it!
1, which easily cause video interference occasions
If you install or construction site, there are some of the equipment or facilities, please consider using video interference device:

Large transformers, switching power supply, wireless microwave transmission tower, mobile phone base stations (GSM, 3G, PHS), high-voltage transmission lines, substations, inverter air conditioner, variable-speed pump, variable frequency motor, Wireless Radio Transmitter (AM / FM) ; power lines and video lines in parallel, the new district with temporary power and may have more than one transformer, wireless router, install a lightning protection device video, and possibly more grounded, solar power, especially in the aluminum factory floor , steel, cutting, cranes and other places.

Second, how to quickly determine the frequency and may cause interference causes
Horizontal stripes in the video image of a contact on behalf of 50HZ, if there are two contact stripes was 100HZ, probably count the number of stripes can be more accurately determine the type of interference. Twill

images generally if there is interference with two or more exist.
Interference frequency is higher, the finer the more dense stripes.
III Resolution of the video interference
Video interference problem to solve, no more than two ways: avoid the storm approaches and methods, which avoid the frequency shift is mainly Program , Storm mainly through inhibition of the video to enlarge the program.

The same program using frequency shift in the circuit, there are many differences, first of all is to ensure enough bandwidth, then the signal strength to ensure adaptability, there is the difference between filter circuit, the last is the level of video fidelity.

Frequency shift programs are generally not suitable for video transmission cables within the multi-core cable transmission, if this type of cable transmission, the transmission distance significantly reduced; would appear there is snow-free image or signal point and with twill.

Inhibited by Video Defense program primarily is to enhance the video signal to noise ratio method can not completely solve the interference, but sometimes for multi-core cable or cable or poor quality of transmission distance is very prominent role.

Article Source: http://depositarticles.com/

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