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Network, monitoring, camera installation steps explain
Need equipment: network cameras, hard disk recorders NVR (or ordinary PC plus client, a small number of ordinary users for home desktop computers to install), switches (according to the number of cameras and code rate adjustment, recommendations can be used) hard disk , display, network cable, power cable, power adapter (or 12V DC switching power supply), camera bracket, cable crystal head.
Installation principle:
Front-end camera in the state of normal operation of the power supply, through the network cable and the switch to capture the video signal to the background of the hard disk recorder for preview and storage. There are differences in the specific connection methods for the monitoring system points. The specific connection diagram can be seen in the following third step.
installation steps:
The first step is to determine the camera's installation position and monitoring area, and fix the camera to the building or the rack through the camera bracket.
The second step is to determine the placement position of the back-end devices (hard disk recorders and monitors). The hard disk video recorder is installed and placed on the hard disk, and a power strip is prepared for the background devices.
After the third step, the front and back ends are completed, cabling is required (if the planning or plan is completed in the early stage, this step is actually prioritized, especially in the environment where the decoration is prepared, the pipeline is required to be embedded). There are two parts: First, to confirm the position of the switch, each camera must be connected to the switch through a network cable, and a network video recorder (NVR) must be connected to the switch. The cable should be routed according to the principles of convenient cabling, aesthetics, and security. , And in each network cable to do a good crystal head; Second, the camera power supply line wiring, each camera requires a 12V/1A or 2A power adapter, look at the construction environment or cost requirements, you can use switching power supply instead (a recommended 12V/10A switching power supply should not bring more than 10 cameras, and so on, and need to be equipped with a power plug. In addition, depending on the number of points in the monitoring system, the connection method used is also different.
Architecture I: 1-8 points of minor works
For small projects of 1 to 8 points, you can directly use ordinary 100M switches to build the network environment. If 2 megapixel IPC is adopted and the code stream is calculated at 6 Mbps, the 8 cameras will occupy 8*6=48M of bandwidth, and the actual usage rate of the 100M switches will be 50%-70%, ie, 50-70M, which can fully satisfy 8 IPCs. Transmission requirements.
Architecture II: 9-50 points of small and medium-sized engineering
For small and medium-sized projects with 9-50 points, it is not enough to use only 100-megabit switches. Higher-performance second-tier full-gigabit switches are required for convergence to ensure smooth video information transmission.
Architecture III: Medium to large projects of 50 points or more
For large- and medium-sized projects with more than 50 points, a three-tier network architecture is needed: access layer, convergence layer, and core layer. At the same time, because of the large number of points, the performance of the core-layer switches is relatively high. In this case, three-layer full-gigabit core switches such as Huawei or Huawei must be selected.
The fourth step is to debug the camera. After the installation is completed and all the lines are connected, the camera is powered on. The relevant network settings must be set on the network hard disk recorder (NVR), and the distribution network camera must be added. (The configuration methods vary from manufacturer to manufacturer.) ), After adding all the cameras, you will see the image, and you can debug the camera's angle, focus lens, etc. to the right effect.
Note: The relevant settings of the network DVR, video, image color, etc., need to be set manually, and can be operated according to the instructions of the purchased device. Such a network monitoring system is completed.