Video Surveillance Cameras For Home
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How to find the camera dead ends
- Professional is this: from the camera's lowest vertical angle and 45 degrees direction of the corner shot to the ground for the vertex to draw a square to the corner, for most of the camera is within the square of the collection area is invalid, basically applicable to The market of 90 percent of the camera, very few high-value professional equipment, except, even if the square of the two sides can sweep the image of the place has been seriously deformed, there is no legal effect, this has been in court there are numerous casess
An accurate calculation formula for monitoring the focal length and actual distance of the lens
- While the use of long focal length lens can see the car's license number (the car occupies most of the area on the screen), but can not monitor the entire car parks
Monitor the camera 1 road 4 what is the difference
- Camera regardless of a few road, only the video recorder was divided, four representatives can take four cameras!s
Monitor the camera from the appearance of how to distinguish is not infrared
- Second, the power test: a small number of camera light bulbs are not infrared, is white, this need to power, and then block the camera on the light sensor, so that the lamp work together. (White light bulb when working, the light is white, the human eye can be seen. Infrared light bulb is issued by the infrared light, the human eye is almost invisible, but the camera output screen is illuminated)s
Outdoor surveillance camera what brand good ah
- Outdoor surveillance camera to meet their actual needs, the quality of trust, is the right of their own. Do not blindly pursue the brand.s
Home surveillance camera with which brand is good?
- In addition to their own home, back to my parents to buy one, my parents live home, a year when the New Year to go back to see them, with their time less, with this monitor, I can see them every day old, you can Like the same as the micro-confrontation. not bad.s
Camera monitor the recorded file 1 hour how much G ah?
- Monitor video 24 hours per channel per day Recording space size calculation formula:s
Monitor the camera with a USB camera
- Mode. CMOS is complementary to each other metal oxide semiconductor, CMOS is mainly the use of silicon and germanium made of these two elements of the semiconductor, through the CMOS on the negatively charged and positively charged transistor to achieve the basic functionss
How to mount shelves？
- Now，many young people like online shopping, especially the intense pace of work in urban white-collar workers. There is no time to go to supermarkets and other stores essence car...
What is the Definitions for Safety and Security
- Believe it or not, in many languages, there is only one word for safety and security, for example, in French it is 'sécurité' and in Italian it is 'sicurezza.', b...
How to build wall shelves？
- Shelves which are mounted on the wall is not only beautiful, but also can save a lot of space,but how to build wall shelves？Next I will share knowledge about the installation of ...
How do detroit lockers work？
- Model and intelligent automatic storage lockers in the modern life has gained popularity, it both cocoa to save human and business area, convenient customer storage of goods,it ?ha...
How to hang floating shelves？
- Using a floating shelf in a small space can save a lot of storage space, which is a very good idea.Floating shelves are installed on the walls, making them appear to float. For the...