Project monitoring camera installation should pay attention to the matters

First, the installation of surveillance cameras:

1. On the premise of the target range, the installation height: the installation height of the indoor camera is 2.5 to 4m, and the outdoor is 3.5 to 10m; the elevator car is installed on the top of the elevator and is diagonally opposite to the elevator manipulator. , And the camera's optical axis and the two walls of the elevator and the ceiling into a 45-degree angle is appropriate.

2. After the cables are put in place, connect the surveillance cameras to the power supply, check if there are any images, and solve the problem. Then install a fixed surveillance camera.

3. If the environment has strong electricity, it should be noted that the installation of the camera should be insulated from the ground in order to avoid interference.

4. If the surveillance camera is not integrated in the infrared, try not to open the lens while moving or installing the surveillance camera.

5. If necessary, take measures for lightning protection during outdoor installation monitoring.

6. When installing the camera, it must be on a solid wall or place. Only after installation can the monitoring screen be prevented from shaking.

7. Debugging infrared lights must be performed at night. Adjust the position of the infrared lamp through the monitor at night.

8. The outgoing cable from the surveillance camera should have a margin of about 1m so as not to affect the rotation of the surveillance camera.

9. Infrared camera, try to avoid direct light source, because infrared light power control is based on the infrared light board installed on the photosensitive resistor to control the infrared light power supply is turned on or not.

10. Infrared camera field of view should try to avoid the absorption of infrared light objects such as all black objects, open spaces, water, etc. The CCD camera supporting the infrared light is reflected by the infrared light reflected on the object onto the CCD camera lens into an image, if Infrared light is absorbed or attenuated, which will weaken the effective radiation effect of infrared light.

11. It is necessary to guarantee the working indicators of the infrared lamp, such as the power supply power of the infrared lamp must be higher than the working power of the infrared lamp itself. The general power supply must reach 2A to ensure the normal operation of the infrared light at night.

12. Pay attention to not touch the lens, CCD target surface and avoid soiling the lens during installation.

13. Choose a good BNC head, this is very critical. Will be trouble-free maintenance.

Second, the installation of the line department:

1. Video cable: SYV75-3 video cable is generally transmitted within 200 meters, 75-5 transmission within 400 meters, 75-7 can transmit 800 meters; also need to pay attention to the quality of CCTV coaxial cable, RG59U, RG6 Both RG11 and 100% require a 100% copper core and a 95% copper braided shield. The maximum resistance of the looped loop cannot exceed 15 ohms. Optical fiber transmission should be considered when the interval exceeds 500 meters.

2. Power cord: Flame-retardant cables should be selected. Use thick spots as much as possible to reduce power attenuation.

3. Control line: Generally use shielded 2*1.0 cable, RVVP2*1.0.

4. Threading pipe: In general, PVC pipes or PVC trunkings can be used, and burying or explosion-proof projects should use galvanized steel pipes (jdg pipes).

Third, control equipment installation:

1. The installation position of the console and cabinet (frame) shall meet the design requirements, and the installation shall be stable and firm, and easy to operate and maintain. The clearance between the back and sides of the cabinet rack from the wall should meet the maintenance requirements.

2. All cables in the control room shall be provided with cable troughs and inlet holes according to the installation location of the equipment. They shall be arranged, bundled and tidy, numbered, and have permanent markings.

3. Working environment of control equipment The equipment of the security system is required to be installed in a clean air-conditioned room, and it is required to be installed on a 19-inch scale rack. There should be a suitable space between the equipment and a forced-air fan is required.

5. Ensure that the monitor's power supply is connected to the live, live, and ground wires according to the specifications. When the monitoring central equipment (monitor, hard disk recorder, matrix, video distributor) is turned on, use a multimeter AC voltage measurement to measure the voltage of the above device housing and the video cable connector connected to the camera. The higher the voltage, the more likely the video output portion of the camera is damaged. When the voltage is not zero, the live video cable must be avoided.