Highway video surveillance system construction into a security focus

With the progress of society, the development of road monitoring systems has made breakthroughs. The traffic road video surveillance system, through the establishment of a digital network covering major urban arterial roads and intersections, is equipped with corresponding image monitoring equipment and software to enable real-time transmission of traffic conditions at traffic intersections to dispatch centers to monitor the running status of road vehicles. So, what is the status of China's highway security development? What are the future development trends?

Highway Security Market Size and Development Status China's Highway Security Market Market Scale We can see some signs from the annual “Traffic Economy of Highway Water Transportation” by the Ministry of Communications. In 2009, 111 highway construction projects were newly started across the country, with a construction mileage of 1.2. The total planned investment is about 700 billion yuan. According to relevant data, China will continue to maintain its infrastructure construction in 2010. The scale of investment in fixed assets will reach 1 trillion yuan, and highway construction will continue to develop rapidly. According to the current plans under construction and investment plans, the annual increase of highway mileage within the next three years is expected to remain at a level of 6,000 kilometers.

According to the Ministry of Communications' total investment of about 700 billion yuan in 2009, assuming that the corresponding investment scale is still estimated in the next few years, electromechanical construction accounts for 5% of the total road construction investment, and the proportion of investment in security systems in the entire electromechanical system is increasingly increasing. It can weigh about 30%, and it can be calculated that the highway security system market will maintain a scale of about 10 billion yuan in the next few years.

According to relevant data, the current total length of highways in China is 40,000 kilometers, ranking second in the world. According to the national development plan for expressways, by 2020, the total length of highways in China will reach 70,000 kilometers. With the continuous increase of the mileage of highway construction in our country, the highway networks of various provinces and cities have gradually formed, and the line control mode of expressway operation and management has gradually transitioned to the face control mode. The ensuing highway safety issues have also been raised. A new agenda. This not only requires the computer network of the monitoring and charging business in the electromechanical system to be networked, but also requires the video surveillance system to be able to develop from the original model of each branch in charge of networking.

As the highlight of security construction, the video surveillance system of the expressway presents a diversified development trend, mainly involving the three-part monitoring of the road surface, toll stations and tunnel bridges. With the rolling up of the monitoring of networked alarm systems, the phenomenon of provincial-level networking of expressways is on the rise. The current highway network monitoring is mainly divided into three levels of monitoring, mainly by the provincial monitoring center, regional monitoring center and road monitoring center. Although the network monitoring based on expressway can be implemented with less perfect at the present stage, it has great potential for development. By laying proprietary optical fiber cables, it is sufficient to meet the transmission of massive data. In addition, in the field of intelligent transportation, systems such as capturing vehicle red lights, vehicle license plate recognition, etc. have become new application domains. It has been extended from traditional video surveillance to an industrialized application system. Therefore, the security of the expressway is making great strides toward networking, intelligence, and digitization.

High-Definition Network Intelligence into Development Direction The development of smart cities has provided huge market opportunities for road monitoring projects. In addition, China’s car ownership has rapidly increased in recent years, and traffic volume has increased dramatically, resulting in huge traffic demand and limited traffic infrastructure. The conflict between facilities will intensify, and it will certainly give birth to a huge market for intelligent transportation products. The development of road monitoring is leading the way, and the intelligentization of high-definition networks has become an industry development trend.

If the network is a single upgrade of the highway monitoring system, then high-definition is undoubtedly a real picture quality innovation. At present, in most highway video surveillance systems, the image resolution is only CIF, D1, and other picture quality effects. Once connected to the back-end storage display device, there may be room for improvement in the clarity of presentation.

However, high-definition equipment is not the only way to look at the effects of front-end acquisition. High-definition cameras can take more detailed photographs of the passing vehicle license plate numbers and local features of the road network. For video surveillance, image clarity is the most critical and basic requirement. The clearer the video surveillance project image and the more complete the picture details, the higher the accuracy of the intelligent analysis function.

As we all know, the premise of the recognition analysis is to identify the smallest pixel whose picture satisfies the recognition condition. When the target pixel is larger, the recognition is clearer and the analysis accuracy is higher. In short, the use of intelligent analysis functions is based on the premise of clear image recognition. Compared with SD, HD front-end products have more effective pixels per unit area under the same focal length and distance of field of view, which means they can provide more clear target information for video analysis and processing operations, thereby improving data accuracy. .

Whether it is for intelligent front-end analysis mode or back-end platform analysis and processing, high-definition picture quality is an important factor in improving the accuracy of intelligent analysis. It can be seen that high-definition image quality is not only satisfied with a single visual effect, but also provides a more useful analysis environment for intelligent analysis.

Customized applications or mainstream urban road monitoring systems will not only achieve HD-SDI, IP high-definition, and standard definition video access, but also truly integrate these three systems, and combine HD-SDI digital uncompressed video with H.264 digital compressed video in one, can meet the needs of high-definition, high-real-time images, but also to meet the requirements of digital storage, IP network transmission; both front-end compression encoding, but also centralized / central centralized compression encoding, truly achieved HD-SDI HD video, IP high-definition video and analog video, any networking, scheduling, switching, control, support video, audio, data, Ethernet, E1 signal, switch and other signals to access, can solve the same platform The problem of simultaneous access to multiple services.