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The general leased line cannot provide enough bandwidth;
Even if the price is not taken into account, there are occasions when it is impossible to lease the line;
In some cases, wired links cannot be used at all;
Multi-line routers have high management costs and complexity;
It is not suitable for indoor and outdoor environment of wiring to transmit long-distance transmission, such as: water and river monitoring of rivers and lakes. Mobile operating environment, such as: temporary monitoring of the on-board monitoring of designated areas, such as: short-term operation of the original construction site of the fiber network link backup and Temporarily repair the line replacement of fiber optic and video line monitoring systems. Group networking, safe city, safe rural video monitoring system, etc. Therefore, the use of remote bridge solutions to build interconnection between multiple buildings has the irreplaceable advantages of wired networks:
Save on the installation cost of the dedicated line and waive the monthly fee;
Get long-distance, high-bandwidth wireless links;
Very short construction period, ready to use after construction;
Not limited by the location of special places, only on-site power supply guarantee;
Cost-effective point-to-point or point-to-multipoint WAN connectivity;
Eliminate the high costs and complexity of managing routers;
Strong re-plasticity and expandability, easy to redeploy the network;
Wireless Monitoring System Structure a) Analog Camera + Video Server + Bridge ~ Bridge + Monitoring Host + Display System Network Camera + Bridge ~ Bridge + Monitoring Host + Display System Wireless Network Camera ~ Bridge + Monitoring Host + Display System Equipment The relationship between the selection and the camera The relationship between the wireless bridge and the camera is mainly reflected in the following aspects:
1. The relationship between the picture quality requirements of the camera and the network bandwidth The D1 format pixel 704*576 needs a bandwidth of 1.5-2Mbps;
CIF format: 576x352, need bandwidth 0.5Mbps;
2. The number of cameras carried by the link;
Design requirements: the actual bandwidth of the bridge> the number of cameras * the required bandwidth of the camera;
Remote wireless bridge applications mainly have the following modes:
Point-to-point wireless bridge mode 
Can be used to connect two networks that are located in different locations, typically consisting of a pair of wireless bridges. The pair of bridges should be set to the same channel. The wireless bridge provided by the colorful wave supports the function of the synchronization channel. Only one channel needs to be changed, and another convenience will automatically change to the corresponding channel. Between two points farther apart, in order to achieve better transmission effects, the antenna design scheme of the wireless bridge provided by Colorful Wave is a patented technology with built-in enhanced dual-polarization adaptive nature, which greatly expands the wireless bridge. Transmission distance and mutual interference between multiple devices in the same environment.
The wireless bridge provided by Colorful can configure different power equipment according to the different needs of customers, and tailor the corresponding technical solutions for customers.
Point-to-multipoint wireless bridge mode
The point-to-multipoint wireless bridge can connect multiple discrete remote networks into one, and the structure is relatively complex with respect to point-to-point wireless bridges. Point-to-multipoint wireless bridges usually send a wireless signal centered on one network, and other receivers receive signals. The central antenna uses different central antenna configurations in different projects:
Omnidirectional antenna: The omnidirectional antenna distributes the signal evenly around the center point in a 360-degree range, which is suitable for situations where the link points are close together, the distribution angle range is large, and the number is large;
Sector antenna: The sector antenna has an energy-oriented aggregation function, which can effectively cover 180, 120, 90, and 60 degrees horizontally. Therefore, if the remote link point is concentrated within a certain range of angles, the sector can be used. antenna;
Directional antenna: The directional antenna has the strongest energy aggregating ability and its signal directivity is excellent. Therefore, the use of directional antennas is the most effective solution when the number of remote link points is small or the angular orientation is quite concentrated;
Combined antennas: Each of the above three types of antennas has certain characteristics. Therefore, in practical projects, it is often the case that a combination is used, for example, using a plurality of sector antennas, or a combination of a sector antenna and a directional antenna.
The remote link point usually uses a directional antenna, and the wireless signal is received by the precise antenna angle positioning and the debugging indicator provided by the color wave device aligned with the center point antenna to complete the wireless bridge.
When the bridged relay is obstructed and invisible between two LANs that need to be connected, you can consider using a wireless relay to bypass obstacles to complete the wireless bridging between the two points. 
As shown in the figure, the position of the wireless relay point should be selected so that the position of the left monitoring center and the position of the right monitoring point can be seen simultaneously. The two directional antennas connected by the relay wireless bridge are respectively aligned with the directional antennas on both sides. The bridge's communication is done through the relay wireless bridge.
There are two ways to construct a relay bridge: a single wireless bridge acts as a repeater and two wireless bridges form back-to-back relays. A single wireless bridge can connect two directional antennas or one omnidirectional antenna through a power splitter. Due to the fact that bi-directional communication shares bandwidth, this method is very simple and practical for users who are not very sensitive to bandwidth requirements. For users with higher bandwidth requirements, back-to-back two wireless bridges in different frequency bands can work in wireless bridge mode to ensure high-speed wireless link communication.
Wireless bridge linking methods and solutions to common problems
Wireless bridges, as their name suggests, are: Abandoning traditional copper wires or optical fibers, using wireless communication technology, and using air as a medium for network data transmission, to achieve the purpose of connecting different network segments. Due to the needs of commercial operations, many buildings that are located far away from each other are required to be able to communicate with each other. However, traditional wired and remote network interconnections face many problems, which are mainly reflected in: