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FAQ
- An accurate calculation formula for monitoring the focal length and actual distance of the lens
- The size of the imaging scene and the size of the imaging object are contradictory, for example, with the same camera to monitor the same parking lot, the choice of short focal length lens can be the entire parking lot to monitor and see the entrance Outside the vehicle out, but can not see the car's license number (the car in the monitor screen only occupies a small area)
- Monitor knowledge! 1.2 m × 20 meters of the corridor with a large angle of the camera the best?
- According to my experience, the first with 6mm lens, the second with 3.6 or 4mm lens is better.
- Outdoor surveillance camera what brand good ah
- Sony, Hikvision, Dahua, heaven and earth Albert, Rongtian as, Ya, as Xin, and so on. Each brand has high-end and low-end products, different applications, the corresponding products are also different.
- Home pinhole wireless surveillance camera where to sell? How much is the miniature camera?
- For example, backgammon, process-oriented design ideas is the first step to analyze the problem: 1, start the game, 2, sunspots first, 3, draw the screen, 4, judge win or lose, 5, turn white, 6, draw the screen, 8, return to step 2, 9, output the final result. The above steps with each of the different functions to achieve, the problem is solved.
- What is the effective range of infrared surveillance cameras?
- Infrared probe about 3 meters to 12 meters between ~ ~ some special except to see the main object of the strong degree of reflex is not strong.
- The camera used to monitor the color of the screen is not normal. Blue as red. Red out is blue. New to buy the camera
- This is the reason for the collection card, the problem is installed after the acquisition card.
- What is the meaning of the camera uid?
- Uid is the user code is registered when you are automatically generated in the database inside. The
- How to monitor the camera with the venue, what type of camera installed in what kind of site, the camera installed how much the number of lenses should be equipped with light board.
- Surveillance cameras indoor and outdoor, the indoor general with the hemisphere or the appearance of the bolt. Outdoor is the infrared ball machine or gun-type camera. In addition to hemispherical cameras and smoke-sensitive models, UFO cameras have installation restrictions, and other gun-type cameras have no specific installation restrictions. The type of camera mainly depends on your site and the requirements of Party A.
