One, the basic equipment selection requirements
1, first determine whether the existing computer with a monitoring card, or in the embedded DVR to do your monitoring host. Using a computer to install the monitoring card, the overall investment is relatively low, suitable for familiar with the computer installation, a professional on duty, more functional requirements of the place, the computer needs to be on 24 hours. The use of embedded DVR does not require specialized knowledge, does not need to be guarded, the operation is very simple, as convenient as the use of VCD.
2, the installation of surveillance equipment need to determine how many cameras to be installed, and to determine the monitoring range and image quality of each camera. First decide to monitor the number of cameras, and then according to the specific situation to determine the camera's lens monitoring range: it must be clear that the camera to the monitoring point of the distance and the need to monitor the area, as for the clarity, in general, 480 TV lines of the camera has been sufficient.
3, to determine whether to have night vision, if your monitoring equipment is installed in corridors, foyers, aisles, warehouses and other places where the light is relatively dark, you can consider the infrared night vision function of the camera, it should be noted that the infrared camera, in addition to the professional night vision or special order, infrared cameras also need to be on site with the aid of light five fingers of the conditions of the infrared distance will be exponentially shorter. Site if the garden lawn, infrared effect is worse.
4, is the direct wiring or wireless transmission to install. In addition to the expensive price, the wireless network does save the camera installation trouble and unattractive, but need to pay attention to the distance and obstacles. In principle, the cement building materials will shorten the wireless transmission distance, metal materials will completely obscure the wireless signal, transmitter (at the camera end) and receiver (at the host end) to be far away from other electrical appliances in order to avoid interference, such as the use of wireless networks will have to bear the burden of more than twice the price of the monitoring equipment. We recommend that unless necessary, try to use wired transmission to install.
5, in determining the installation of the monitoring system, to consider whether the need for network functionality, that is, if you need to monitor the site at any time in the Internet monitoring and control, you need to choose a network function of the monitoring host. Avoid the installation but no network transmission function.
Second, the key monitoring equipment installation requirements
1, monitoring camera
(1) in the monitoring target to meet the requirements of the field of view range of the conditions, the installation height of the indoor ground should not be less than 2.5m, outdoor ground should not be less than 3.5m.
(2) monitoring camera and its supporting devices, such as lenses, camera guards, brackets, Wipers, etc., should be installed firmly, the operation should be flexible, should pay attention to anti-vandalism, and coordination with the surrounding environment.
(3) In the strong electromagnetic interference environment, surveillance camera installation should be isolated from the ground insulation.
(4) Signal and power lines should be introduced separately, the exposed part of the hose protection, and does not affect the rotation of the head.
(5) the monitoring camera in the elevator compartment should be installed in the compartment door above the left or right, and can effectively monitor the elevator compartment occupants facial features.
2, the head and decoder
(1) the installation of the head should be firm, no shaking when rotating.
(2) According to the technical conditions of the product and system design requirements, check whether the rotation angle range of the head meets the requirements.
(3) The decoder should be installed near the head or in the ceiling (but there must be access holes).
3, monitoring camera control equipment
(1) console, cabinet (rack) installation location should meet the design requirements, the installation should be smooth and solid, easy to operate and maintain. (Cabinet rack) back, side net distance from the wall should meet the maintenance requirements.
(2) monitoring camera all control, display, recording and other terminal equipment should be installed smoothly, easy to operate. One of the monitor (screen) should avoid direct external light, when unavoidable, should take measures to avoid light. Equipment installed in the console, cabinet (rack) should be ventilated cooling measures, internal connectors and equipment should be firmly connected.
(3) all cables in the control room should be set according to the equipment installation location of the cable groove and into the hole, arranged, bundled neatly, numbered, and have a permanent sign.
How to install a security monitoring system
1, first determine the location and number of surveillance cameras installed, the number of wires used, the number of hard disk recorders road and other parameters, to determine the corresponding equipment parameters and list.
2, after the completion of equipment procurement, the first according to the previous design of the camera installation location and monitoring the host installation location for wiring, there is a ceiling where as much as possible from the ceiling side of the line, do not leave open wires. There is no ceiling place can be used wire pipe or wire channel, beautiful and generous.
3, line laying is completed, according to the previous design of the point of installation of surveillance cameras and 12V power supply, surveillance cameras need to be fixed camera bracket and self-tapping wire, at this time you need to use an impact drill first in the wall wall holes, stuffed with a good up plugs, with self-tapping wire to fix the camera bracket, and then the camera is mounted to the bracket gimbal.
4, front-end monitoring equipment is installed, and then install the back-end equipment. The first program uses a video capture card, the video capture card is installed into the supermarket computer PCI slot, using the computer host hard disk for video storage. The second option is to use hard disk recorders, so that there is no need to occupy the computer, but need to purchase a separate hard disk for video recording storage, purchase a monitor for image display.
5, the previous work is completed, you can carry out the project finishing work. Project finishing work mainly includes coaxial cable BNC head welding, power wiring, line fixing, etc., and finally connected to the BNC head, power commissioning equipment.
6, after the equipment is powered on, the camera image should be displayed on the monitor, adjust the camera bracket, so that the camera to achieve the best monitoring effect, after powering on the camera does not show an image should be promptly disconnected from the power to troubleshoot the problem.