Q:Outdoor surveillance camera what brand good ah

The camera's chip is mainly used in Sony's CCD and CMOS chips, infrared lamps with Taiwan's Ding Yuan and so on are very good combination. Observation of the actual site, select the appropriate lens, functional requirements (automatic tracking, etc.), select the local well-known existing brand products, understand its after-sales service, compare the effects and functions of several, price, and ultimately determine the camera brand model.

Q:Home pinhole wireless surveillance camera where to sell? How much is the miniature camera?

Object-oriented is the decomposition of the composition of the transaction into the various objects, the purpose of the object is not to complete a step, but to describe a thing in the whole problem-solving steps in the behavior.

Q:Monitoring camera 6mm 8mm 12mm 16mm length and width can be according to how much.

At the same time, the same focal length, length and width shooting range also with the camera CCD has a relationship. Charge - coupled Device, Charge - coupled Device. It is a semiconductor device that converts optical images into electrical signals. At present, most of the CCD chip used in the surveillance camera is 1/3 "and 1/4", that is, the target size is 1/3 inch and 1/4 inch. CCD target surface size, CCD and lens with the situation will directly affect the size of the field of view and image clarity.

Q:What is the number of lines that a surveillance camera needs to use?

3, the control line (it is the PTZ, the spherical camera control line, with a two-core dvvr line)

Q:Monitor the camera what is the zoom

The lens is equivalent to the human eye lens, if there is no lens, the human eye can not see any objects; if there is no lens, then the camera output image is a vast expanse of white, no clear image output, which with our home camera and camera principle Is consistent. When the human eye can not stretch the lens to the normal position, that is, people often say myopia, the front of the scene becomes blurred; camera and lens with a similar phenomenon, when the image becomes unclear , You can adjust the camera's back focus, change the CCD chip and the lens reference plane distance (equivalent to adjust the position of the human eye lens), you can blur the image becomes clear. Thus, the role of the lens in the closed-circuit monitoring system is very important. Engineering designers and construction workers should often deal with the lens: the designer according to object distance, imaging size calculation lens focal length, the construction staff often on-site commissioning, part of the lens is to adjust to the best condition.

Q:Buy monitor camera attention to what

Due to the manufacturers in the DSP and related technology between the level of differences, so the product is also different, so the parameters are marked with the gap, and some marked 500 lines, and some standard 520 lines, there are marked 530 lines, the highest marked 540 lines, Even 600 lines. So a variety of line number classification, in fact, shows the differences between the various, of course, which also mixed with a small amount of domestic enterprises to 480 lines fake 500 lines above the product composition. In fact, even in the same 540 line products, because the manufacturers of production technology differences and DSP technology differences, the same line of products with different results. But with the naked eye to distinguish is more difficult to compare out, unless the professional testing equipment or image magnification to distinguish, or find one or two real high-end brand camera to contrast. But in essence, 520 lines or more are called high-definition cameras, but analog cameras in the existing DSP and manufacturing technology based on a limit upgrade, it will be the traditional 480 line HD standard to 520 lines Or 540 lines.

Q:Wireless micro-surveillance camera how to see what to shoot

If it is with memory, then the memory card can be placed on the card reader to the computer to play, if there is no memory, then there is a receiver, the receiver connected to the hard drive will receive the signal stored in the hard drive, Can be played through the hard drive on the monitor.

Q:Monitor the video recorder has been unable to work what is the reason

VCR power supply problems. You can change the power adapter to try;

Q:A camera for an hour how much space

Depends on your video recorder video format is CIF or D1

Q:Network monitoring camera how to make external network access?

Second, to use the network to monitor the camera's P2P function, in the camera where the computer log on to the camera manufacturers authorized transfer site, account application and verification, equipment to add; then you can log in the Internet where the site input account And password, view the video has been added to the device.