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?

If you want to calculate the number of hard disk and disk array, then you need to know the relevant data, such as: hard disk capacity, disk array number, the required RAID level. For this calculation, you can recommend a video monitor memory capacity calculator developed by the Chinese Blue Whale. As long as you enter a number of related data, it will automatically calculate the results you want. You can also use this software to calculate the monitoring storage capacity. Specific you can log on their official website to see.

Q:What is the black box that monitors the camera connection?

There may be a power adapter, there may be Guangduan Ji, there may be a video distributor, there may be a screen splitter, there may be a hard disk video recorder, do not know which one you say.

Q:What are the problems with the surveillance camera?

Wait for you to meet the situation to say it again, I give you answer, you ask the question is like to buy a mobile phone, mobile phone will generally what the same problem. People are so depressed! The The Surveillance cameras, Dongguan Le Pu Electronic Technology Co., Ltd., this is very good!

Q:What is the power of the camera used for monitoring?

31 cameras, if all fixed, then the power supply of each camera should be DC12V / 1A, each 12W, 31 * 12 = 372W, RVV2 * 0.75 power line is enough.

Q:Will a 12V10A switching power supply with a few 12V2A surveillance camera? How far can its DC current output? Please have experienced master answer, thank you

12V10A switching power supply with 5 12V2A surveillance camera.

Q:Monitor the difference between the camera 720p and 1200 lines

720P is 1280 X 720 pixels short, usually also known as 100W like. Is a parameter of the clarity of the digital camera system.

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

In general, there are three main ways to deal with camera backlighting, one is to protect the camera as far as possible to prevent direct sunlight; the second is to use a corresponding improvement in the function of the camera, such as wide dynamic camera or backlight compensation camera; three can travel indoor light illumination, Reduce the contrast with outdoor light.

Q:Ready to engage in a facade ... to help people engage in monitoring. General how much of this type of profit. How to charge.

The current monitoring market is chaotic, the brand is more, at the same time, is also based on the current market demand is growing, relative to the three-tier cities in terms of profit margins can also be generally about 30% of profits, which refers to equipment sales, But do the project said, do relationship, you can control the profit margin, how much the general decision. Fees are not fixed, the construction fee is generally added in the profit after the total equipment to take 10% -15%.

Q:What is the power consumption of the camera day?

According to the DC power conversion efficiency of 80%, the input power = 18W / 0.8 = 22.5W

Q:I would like to install at home and back door two cameras in general how much money?

According to the length of the cable, the camera's clarity is good or bad, a good camera generally a 160 or so can, the two together also 500 almost.