Q:What is the meaning of the high definition and standard definition of the surveillance camera?

HD requires a physical resolution of 1920 × 1080, that is to say the horizontal resolution to reach 1920 pixels, the vertical resolution to reach 1080 scan lines.

Q:Does the infrared surveillance camera automatically alarm when someone enters the monitoring range?

The camera itself does not work, through the acquisition card, or hard disk video recorder, you can detect the mobile body will alarm,

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

Optical (transmitter) is the camera output of the electrical signal is converted to optical signals, through the fiber to the signal transmission to the control room, and then (the receiver) will be converted to electrical signals into electrical output to the hard disk video recorder.

Q:What kind of material is needed to install the surveillance camera?

2, calculate the number of cameras, and now the general camera 480TVL SONY CCD price between 270-380. Outdoor 50-80 meters of infrared light irradiation distance is enough, high-power infrared lighting equipment will make a lot better at night. But it was black and white at night.

Q:What is the meaning of the camera function heartbeat?

For example, after the information system has done single sign-on integration, it can keep the system's local login function in order to reduce the risk of system coupling. And then use the system "heartbeat" function to achieve the two users of the automatic switch, thus increasing the robustness of the system, to prevent the failure of the unified certification system caused by global paralysis. So what is the "heartbeat" function? The "heartbeat" function is a method of using periodic access to determine whether other system functions are normal.

Q:What color is the monitor when the camera is turned on?

Most of them are red, there are white light and no red light at night no light, and the specific relationship between the wavelength of infrared light.

Q:Monitor how the camera is connected

2. How to use the cable connection to monitor the camera cheap. The price of the ordinary ultra-five cable is quite comparable with the 75-3 video cable, the outdoor waterproof super five cable prices are comparable with the 75-5 video. VGA cable (also known as VGA cable, signal line, image transmission line), is used to connect the host computer and monitor. The general minimum length of the standard shall not be less than 1.5M, without both ends of the thread. The market also has 1.8M, 2M, 2.5M, 3M, with a host computer, these lengths are generally used for foreign customers. The maximum length of the VGA is not a uniform standard, how long do you want to do to give you how long to do, of course, the line is too long, the impact of image transmission. Moreover, the price is very expensive, the maximum length can do 30M has been very good.

Q:20 meters away with the number of mm monitor camera lens appropriate?

1/4 "CCD lens in the line of sight with 1/3" CCD no difference, but the angle will be more narrow, while the shooting of the object will appear taller.

Q:Night to monitor the infrared light is not bright because it is not open monitoring?

4: into the camera's settings menu, and some cameras can be forced to turn off the infrared mode, that is, has not opened.

Q:Test on camera delay problems

Under normal circumstances, the ideal monitoring camera delay in 200ms or so, slightly worse IPC delay in more than 400ms. If the delay of the network camera to reach more than 400ms, you need to consider the serious delay phenomenon for the front-end equipment alarm.