Talk about the video detection technology application and development of China - video detection technologies, applications and development -

Talk about the video detection technology application and development of China - video detection technologies, applications and development -

The use of testing equipment in real time traffic data collection is the work of modern traffic management necessary link. As the traditional interference coil detector installation and maintenance of various defects, some domestic highways, urban roads or tunnels began sights video detection Technology . At the same time, more damage induction coil detectors and high maintenance costs, but also makes the video detection equipment into the part of the highways, urban roads to improve the investment budgets. In addition, the Highway Management Information , The foreign intelligence objectives and to promote video products, forcing domestic traffic management and intelligent transportation businesses begin to address the video detection technology used in the promotion.

One direction and application of key technologies

Analysis of the traffic management needs of its major sub-system, video detection technology direction of the main application can be nine parts (Figure 1), the part of the basic functions to be achieved and the use of video detection key technologies as follows:

1) Traffic Information Collection Real-time collection of traffic management or traffic information the driver needs to reflect the operational status of the traffic flow. Video detection to be used in key technologies including: image processing, vehicle tracking technology.

2) Event Management For this part of the work, the video detection system must complete the basic functions are: the diagnosis for the incident response and provide clear whether there is other traffic incident, the incident location, type, severity and other information. Therefore, in addition to detection of flow, velocity, density and other basic traffic flow information, video detection to be used in key technologies include: automatic incident detection algorithm, pattern recognition technology. Through algorithms, and other means to achieve automatic detection of the event.

3) Illegal processing Illegal U-turn, lane change violation, illegal parking, speeding and other traffic management is needed to prevent the contents of the monitor. View video detection technology, with its wide-area surveillance of the characteristics of the above problems can be solved by: video detection system Camera The line of sight, through vehicle tracking technology, access to vehicles, retrograde, change lanes, parking and vehicle speed information, and then driving through the rules and monitoring in the region of contrast, whether the violation of the judge to come.4) Congestion Control On the main highway monitoring the problem is how to avoid delays caused by congestion, congestion and other operational issues. In response to this request, the video detection technology can be obtained in the analysis of traffic flow changes in operating parameters based on the detection algorithm through some crowded or pattern recognition, whether the produce obtained crowded, crowded places of occurrence, time and gravity, etc. information, to provide rapid response to the crowded real-time traffic information.5) main line control Video detection system can be crowded with automatic detection, automatic incident detection and climate change, detection of main line traffic, occupancy, density, speed of traffic flow changes in operating parameters so as to Drive to use control, variable speed control of main line control decision-making to provide basic information input.6) ramp control Ramp is an important decision to channel the traffic supply and demand balance. With the main line of control, video detection system can detect arrival traffic, through traffic, queue length, share other ramp traffic flow parameters, based on the opening for the ramp closure, convergence of control, through flow regulation, and control programs to provide basic information input.7) Information Release Traffic management system Another function is to transport users, managers with real-time traffic information. http://www.articlesbase.com/rugby-articles/talk-about-the-video-detection-technology-application-and-development-of-china-video-detection-technologies-applications-and-development-2689828.html

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