Optical transceiver in urban traffic monitoring analysis (1)

As China's rapid economic development and the rapid growth of urban population, many cities are faced with the growth of urban population and vehicle traffic congestion problems.

Facts have proved that the strengthening of urban transport planning and urban road infrastructure at the same time, the introduction of advanced communications technologies, monitoring and control technology, traffic in real time to effectively control and guidance is to address the problem of heavy city traffic of the key and effective way. The key to solving this problem is to establish a modern, intelligent traffic control and command system. In urban traffic control system, optical transceiver has played a very important role, this article describes optical transceiver in urban road traffic monitoring.

Urban traffic control system by video capture system, control system, network, transmission system consists of three parts.

In accordance with the functionality is divided into video surveillance systems, signal light control systems, electronic police system, video inspection and the subsystem, its major functions done as follows:

Real-time monitoring of the crossing, to the unity of command, scheduling

Make traffic flow, traffic detection

On the road scene for long videos, to process and archive

Through the traffic light signal control, regulate traffic flow, effectively alleviate traffic congestion

You can set the number of junctions electronic police

Effective detection of traffic behavior, to combat vehicle violation provides security

Timely detection of, and assistance in dealing with social security events, maintaining social stability and unity

From the city traffic monitoring system form, to accomplish these functions, you will need the system components to be able to independently perform their respective functions, and to closely support: video acquisition system need real-time monitoring various junctions of the scene, including analog video signals and electronic police acquisition of picture information, collected through networks of video information transmission to the monitoring center, monitoring center of the control system can be up to the front and on the video information is saved, video processing and so on; at the same time, the control center of the control system also needed on the front of the cameras, lights, electronic police control, such as by monitoring center of control system of the front-end devices emit different control signal, and then through the network transmission system to front-end devices to complete control.

In the above process, system parts are played very important role, while taking into account the portion of the complete functionality, you will find, whether video surveillance systems, signal lamp control system or the electronic police system, they all share the same part of that network transmission system.

In the optical fiber communication developed today, optical transceiver has become the preferred network transmission system. In video capture and central control system, they are different devices to perform different functions, front-end using cameras, lights, Center the matrix and DVR processing video information, use the semaphore control software, electronic police software, etc. While the front-end and the communication between the monitoring center and the signaling of fall in a transceiver, a careful analysis of your entire system with the ability to know what signal transmission system requires:

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