In the wave of security surveillance, the update of video surveillance is like a tidal replacement. Under the influence of the “great gravity†that the mall needs to constantly change, it brings new skills and takes away old products. The replacement of goods and skills marks the security mall's “prosperousâ€. Nowadays, security monitoring is moving from the era of imitation to the digital HD era. So what should we pay attention to during the construction of HD monitoring system?
HD network monitoring system construction considerations
1, switch selection, more than 5 points (including 5 points 720P or more), please use the full Gigabit network switch;
2. Make a backup. Before the construction, the IP addresses of all network domes, network cameras, NVRs, computer masters, storage servers, streaming media servers, HD decoders, management servers, etc. in the system must be uniformly modified and registered. Be sure to avoid having IP address conflicts with the original devices (such as computers and network printers) on the local network;
3, do a good job registration, all devices in the network system (including the original equipment), please do not set to automatically obtain the IP address mode, all manually set the IP address, register the registration form;
4. Pay attention to IP conflicts. For example, if there is a wireless router in the network system, please pay attention to whether there is a conflict between the IP addresses of the smart phones and the tablet connected to the wireless network system;
5. Pay attention to the aggregation layer switch selection. The number of IPCs connected to the front-end switch is not more than four. You can use 8-port 100-Mbps switches. For example, if you have more than 4, you must use 8-port full Gigabit switches because the front-end switch is changed to the main room. Only one network cable is used between the machines. If the number of IPCs in the load is too large, packet loss, frame dropping, delay, and jamming may occur.
6, pay attention to the choice of network cable, IPC to the front-end switch can use the national standard super five network cable, and the front-end switch to the main switch between the machine room, please use the national standard six network cable and six crystal head;
7. Pay attention to the distance between the camera and the main control room. The high-definition network dome camera and the HDC to the main switch of the equipment room can only be relayed once by the network switch. If the distance is greater than 100 meters, the fiber can be used. For receiving and transmitting, please use one light or one power. One light two electric or one light four electric good easy fiber optic transceiver
8, pay attention to the choice of wire, network ball machine, network camera to the front-end switch, if the use of international super five shielded network cable, the line length is recommended not to exceed 80 meters, such as the use of international six network cable is recommended not to exceed 100 meters;
9. The main switch of the equipment room should not choose a switch with a management type under normal circumstances, unless there is an engineer who is familiar with setting up a management switch, or the system is relatively large;
10. The main switch of the equipment room must choose the full-gigabit switch of the big brand, and must not be fully loaded. For example, when the 24-port full Gigabit switch is actually used, generally do not use more than 20 ports, because the network HD monitoring data volume is relatively large and The data is transmitted continuously, and the processing requirements of the switch are relatively high. If there is a delay and a stuck phenomenon when a switch has many points, you can try to add a switch to solve it.
11. The scope of the network monitoring project can determine the type of HD network camera and the number of HD network cameras for different coverage areas. Types are 1MP (1/4 Sensor) / 1.3MP (1/3 Sensor) /2MP (1/2.7Sensor) / 3MP (1/2.5 Sensor). In one project, the lens selection is very important, it depends on Can you fully cover the range that customers need to watch.
12. Network monitoring engineering object, the monitoring object determines the framing range, camera position and the required camera type. The monitoring object has subtle maps and general observation maps. Subtle images work well for identifying people or specific targets, such as: people's faces, documents, and storefront monitoring; the general observations are mainly to monitor the entire scene or the approximate flow of the scene. The monitoring target determines the framing range, camera position and the type of camera required.
13, network monitoring engineering environment, because the indoor and outdoor light is not the same, so you must consider the sensitivity and lighting effects. In the outdoor environment, you can use infrared light, and some need to use the day and night dual-use surveillance cameras; if it is indoor, you don't have to think about it so much, just consider the lighting effect. In addition, if you are outdoors, you must consider the relevant factors of dust, moisture, water and damage. For example, in a dark environment, a camera with low illumination function can be used, and a wide dynamic function camera can be used in an environment with uneven light distribution. A professional license plate function camera can be used in a bayonet environment, and an elevator can be used in an elevator environment. Camera and so on.
14. Whether it can be publicly monitored, because some places need to cover hidden million HD network cameras for some specific reasons. Therefore, in this respect, it is necessary to consider the selection of non-concealed or concealed surveillance cameras.
15. Intelligent video and event management. The video is based on the event trigger to record through the input port and intelligent video function of the network video product, saving bandwidth and storage space. Unless an alarm/event occurs, it is not necessary to perform on-site monitoring of all surveillance cameras. People can 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 a million HD network cameras or video encoders.
16, network monitoring engineering audio function, this is also to consider the location you use to decide, if you need to use the audio function of the million high-definition network camera, it must also consider the connection of headphones or speakers, pickups and other equipment.
17, image quality, image quality of millions of high-definition network cameras is very important as ordinary surveillance cameras. In this respect, you can only use different million HD network cameras to observe and choose a more suitable million HD network camera. It is recommended to take the prototype with the prototype before the installation to test the customer and perform the batch installation with the effect selected by the final customer.
18, do remote monitoring when paying attention to the number of routers, such as IPC with multi-layer routers that can penetrate functions, you can not consider this consideration, such as only one layer of routers, then you should consider this when doing remote One thing.
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