The first step: decide whether to install the monitoring card of the existing computer, or the embedded DVR as your monitoring host; use the computer to install the monitoring card, the overall investment is relatively low, suitable for familiar computer installation, professional duty, functional requirements comparison More places. The computer needs to be turned on 24 hours; the use of the embedded DVR does not require professional knowledge, does not require watch, and the operation is very simple, as easy as using a VCD;
Step 2: Decide on the need for several cameras and determine the monitoring range and image quality of each camera
First determine the number of cameras to be monitored, and then determine the camera’s lens monitoring range according to the specific situation: the distance from the camera to the monitoring point and the area to be monitored must be clarified. You can get the approximate lens parameters according to the following formula. As for clarity, we think that the 420 TV line camera is enough.
The third step: whether there should be night vision function in the corridors, halls, aisles, warehouses and other places where the light is dark, you can consider the infrared night vision function of the camera, it should be noted that the infrared camera in addition to professional night vision or special order Infrared cameras also require on-site illumination with five fingers to reduce the infrared distance. If the scene is a garden lawn, the infrared effect is even worse.
The fourth step: whether it is wiring or wireless In addition to the expensive price, the wireless network does save the trouble and unsightly of the camera wiring, but it is necessary to pay attention to the problem of monitoring distance and obstacles. In principle, cement building materials will shorten the wireless transmission distance, metal materials will completely block the wireless signal, and the transmitter (at the camera end) and the receiver (at the host end) should be away from other electrical appliances to avoid interference, such as using a wireless network. It is necessary to have a price that is more than twice the price. We recommend using wired transmission whenever possible.
Step 5: On-site monitoring and network monitoring When determining the monitoring system, you should consider whether you need network functions. That is to say, if you need to monitor and control the monitoring site at any time on the Internet, you need to select a host with network function. [Beijing Industrial Automation Equipment]