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Monitor camera parameters how to see
- Aperture: the aperture installed in the back of the lens, the greater the aperture open, the greater the amount of light through the lens, the higher the clarity of the image; the smaller the aperture, the smaller the amount of light through the lens, the image clarity low. Usually with F (luminous flux) to represent. F = focal length (f) / light aperture. In the camera's technical indicators, we can often see 6mm / F1.4 such parameters, which indicates that the focal length of the lens is 6mm, luminous flux of 1.4, then we can easily calculate the aperture of 4.29mm. In the case of the same focal length f, F value is smaller, the greater the aperture, reach the CCD chip, the greater the luminous flux, the better the lens.s
What is the difference and connection between the optical zoom and the digital zoom of the camera in the security monitoring?
- Digital zoom, the software is a way to achieve the realization of electronic amplification, and more for high-definition network camera, through the camera's capture screen, the screen to enlarge the local.s
What kind of surveillance camera is good for the hotel?
- Such as the lobby: the general use of integrated zoom camera, the scene can be a point to enlarge the details.s
Monitor the hard disk on the recorder is what format without formatting
- Commercialized, stereotyped surveillance video recorder format you do not have to consider. You only need to set the pixel (or fine level), several frames per second, date and time.s
How to use video surveillance video surveillance
- Whether it is Hai Kang, Dahua, Degas or Kang silver video capture card, their function is video capture, and then? Compression, otherwise, so much of the data stream burned the CPU, they are only responsible for the collection, that is, you can now achieve the function - video. To achieve the function you say is also very simple, according to your idea, have to buy a video decoder card, because the acquisition card data collected after compression can not communicate with the qq software (protocol is different), through the decoder card , The compressed data is reduced to analog (or digital) signal, through the USB interface can achieve what you said the function.s
What is the difference between a wireless surveillance camera and a cable surveillance camera?
- Wired relative to the wireless signal a little better, the wireless a little easier, the quality of a clear choice of cable is better.s
What is the difference between a network video encoder and a hard disk video recorder? And bolt machine cameras are the same as security monitoring? What kind of network video encoder used
- The DVR mainly converts the analog video signal into a digital signal for storage (that is, video). Now the hard disk video recorders are generally with network transmission function. Know the product features also understand the use of places, the encoder is generally used for network monitoring.s
Monitor the camera feel infrared
- Infrared lens, the day will be a little color, color lens will not! Now with the monitoring of the CCD are feeling infrared, only the lens does not sense the sense of infrared.s
Design case analysis of shopping trolleys australia
- It is well known that，the function of shopping trolleys australia is mainly for people to carry goods when they are shopping in the supermarket.It is convenient to take, and its ...
How do forklifts work？
- Take the example of the balance heavy forklift,I will introduce the working principle of the forklift: How do forklifts work？Forklift is generally divided into the following seve...
Do You Know Something about Fiber Type
- As you know all of our clothes are made of fibers, but do you know something about fiber type? Of course, the required fiber type of different clothes is different and different ty...
How to mount floating shelves？
- Do you know how to mount floating shelves?Now let me tell you how to mount floating shelves .Floating shelves in a small space,it is a good idea to solve a lot of storage space, fo...
What is shelves？
- Ask you a very stupid question,do you know what is shelves？In our place, it refers to the instruments that people use to put books.The morphology and structure of it is different...