In the wave of the development of security monitoring, the replacement of video surveillance is like replacement of tides. With the need to constantly modify this “gravity†function in malls, new skills are introduced and old products are taken away. The upgrading of goods and skills marks the security shopping mall "prosperous." Security surveillance is now moving from the imitation era to the digital HD era. Then what should we pay attention to in the construction of HD surveillance systems?
HD network surveillance systems Construction Notes
Switch selection: 5 points or more (including 5 points 1080P or more) Please use full Gigabit network switch;
Ø Make a backup: Before the construction, the IP addresses of all network domes, network cameras, NVRs, computer masters, storage servers, streaming media servers, high-definition decoders, and management servers in the system must be uniformly modified and registered. Care must be taken to avoid IP address conflicts with existing devices (such as computers and network printers) on the local network.
Do a good job registration: all devices in the network system (including the original device), please do not set to automatically obtain the IP address mode, all manually set the IP address, registration table is good;
Pay attention to IP conflict: If there is a wireless router in the network system, please note whether there is a conflict between the IP address of the mobile phone and tablet in the access wireless network system;
Note the convergence layer switch selection: The number of single-end IPCs connected to the front-end switch does not exceed four, and 8-port 100-Megabit switch can be used. If more than four, please use 8-port full-Gigabit switch because the front-end switch to the main switch Only one network cable is used for transmission. If the number of IPCs on the load is too large, packet loss, frame drop, delay, and stalling may occur.
Note that the network cable selection: IPC to the front-end switches can be used between the national standard Super five cable, and the front-end switches to the main room of the machine room, please use the national standard six types of cable and six types of crystal head;
Pay attention to the distance between the camera and the main control room: The high-definition network dome, high-definition IPC can only use the network switch to relay once between the main switches; if the distance is greater than 100 meters, the optical fiber can be used to receive the emission. Use one light or one light or one light. Two electric or one light four electric Yi Yi optical fiber transceiver;
Pay attention to the choice of wire: network dome, network camera to the front-end switch if the use of international ultra-five shielded cable length is recommended not to exceed 80 meters, such as the use of international network cable is recommended that the best not more than 100 meters;
Computer room master switch: Under normal circumstances, please do not choose the switch with management, unless there is a relatively familiar engineer on the set management switch, or the system is relatively large;
The main switchboard in the equipment room: Be sure to choose the big brand full gigabit switch, and must not be fully loaded. For example, if you use a 24-port full gigabit switch, you should not use more than 20 ports because the data volume of the network high-definition monitoring is relatively large and is not Stopped transmission of data, the processing requirements of the switch is relatively high, if there is a delay when the switch with a lot of points, the phenomenon of stalling can try to add a switch to solve.
Network Monitoring Project Scope: The scope of coverage is different. It is possible to determine the type of HD network camera and the number of HD network cameras. There are PM70 series HD digital network matrix, PE80 HD network matrix, etc. and PE3036OP1-SDI-IP 2 million pixel infrared SDI high-speed smart ball, PE9820APM 200 million full HD SDI camera, etc. In a project, the lens selection is very important, it depends Can you fully cover the range of customers need to watch.
Network monitoring engineering object: The monitoring object determines the viewing scope, the camera position and the type of camera required. The monitoring object has sub-micrographs and general observations. Subtle images are effective for identifying people or specific targets, such as: people's faces, certificates, and sales storefront monitoring; general observation charts are mainly to monitor the flow of the entire scene or scene. The monitoring target determines the viewing range, the camera position, and the desired camera type.
Network monitoring engineering environment: Because indoor and outdoor lighting are not the same, sensitivity and lighting effects must be considered. In the outdoor environment, infrared light can be used, and some need to use dual-use day and night surveillance cameras; if it is indoor, it does not need to consider so much, then just consider the lighting effect just fine. If you are outside, you must consider the factors related to dust, moisture, water, and vandalism. For example, in a dark environment, a camera with a low illumination function can be used, a wide dynamic camera can be used in a non-uniform light distribution environment, and a professional license plate function camera can be used in a bayonet environment, and an elevator can be used in an elevator environment. Cameras and so on.
Whether it can be publicly monitored: Because some places take into account certain specific reasons that need to be equipped with hidden million HD network cameras. Therefore, in this respect, it is necessary to consider the selection of non-hidden or concealed surveillance cameras.
Intelligent video and event management: Video is recorded on the input port of the network video product and intelligent video function based on event triggers. It saves bandwidth and storage space. It is not necessary to perform on-site monitoring of all surveillance cameras unless an alarm/event occurs. Operators can therefore Monitor more cameras. Event management functions are often configured using event management software programs, supported by the input/output ports and smart video capabilities of millions of HD webcams or video encoders.
Network monitoring engineering audio function: This is also a consideration of the location you use. If you need to use millions of HD network cameras with audio capabilities, you must consider connecting headphones or speakers, microphones, and other devices.
Image quality: The quality of millions of high-definition webcams is as important as an ordinary surveillance camera. In this regard, you can only use the installation of different million HD network cameras to observe the effect and choose a more suitable one million HD network cameras. It is advisable to have a prototype before the installation to test the customer and perform the batch installation with the final customer's choice.
When doing remote monitoring, pay attention to the number of routers: If you use a multi-layer router that can penetrate IPC, you do not need to consider this note. For example, you can only penetrate one layer of routers. .
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