Shulou(Shulou.com)06/02 Report--

Analysis on the Development trend of Ping an City

The Ministry of Public Security began to carry out the pilot construction of the 3111 project in 2004, which has lasted for 11 years. The construction of Ping an city marked by technical prevention and monitoring has made great breakthroughs and achievements. According to statistics, as of 2014, the national public security has built more than 1 million cameras, realized the construction of public security network platforms in 2/3 of the provinces and more than 300 prefectures and cities across the country, and guided more than 10 million cameras installed by social units. video surveillance has become an indispensable technical defense tool for public security departments, playing an indelible role in social security and other aspects. At present, under the background of the development of national urbanization, Ping an City, as an important part of the smart city, how to develop in the future, how to effectively support the construction of the smart city, and how to play a greater role in the prevention and control of social security and serving the people's livelihood, this is an urgent problem for government departments and industry manufacturers to think about. This article will be based on the construction of Ping an city, and discuss with you the development trend of Ping an city in the author's mind.

Throughout the development of technology and defense technology in Ping an City, taking 2014 as the demarcation point, the previous 10 years have undergone a series of major technological changes from simulation to network, from standard definition to high definition, but have never jumped out of the circle of unstructured data. Since 2014, we have seen an unprecedented change, that is, security manufacturers, led by Haikangwei, have launched intelligent front-ends with video structured processing capabilities. As we all know, an important foundation to support a smart city is big data, which can provide auxiliary decision-making support for city operation and management through big data application. After a large number of surveillance front-ends deployed in cities have the ability to process video data structurally, they will greatly expand and extend the tentacles of data perception and collection, and provide data support for smart cities.

Based on the analysis, the author believes that the development of Ping an city can be divided into two stages, the video era before 2014 and the data era after 2014.

In the video era, we have experienced three stages of gradual overlap: visible, clear and simple. To solve the visible problem is a relatively simple but long-term project. It is necessary to continuously increase the laying density of points, gradually expand the urban encirclement, and weave a dense public security prevention and control network. Therefore, after Ping'an City, there are more and more construction projects such as Ping an Township and Ping an Community. On the other hand, the release of "Technical requirements for Information Transmission, Exchange and Control of Networked Video Surveillance system" (GB/T 28181) in 2011 opened the construction of networking sharing of the platform, realized the integration and sharing of video resources, and made the perspective of urban management more and more extensive. The solution to the problem is the best proof of the rapid development of Ping an City's technical defense technology. 2008 is the first year of HD. In 2013, the security field entered the 4K era, accompanied by the progress of H.264, H.264 High Profile, H.265 and other codec technology. The simple emphasis is on the convenience of actual combat applications. At this stage, intelligent analysis technology has made great progress, such as video concentration summary, image blur processing and other technologies have greatly improved the efficiency of video viewing in the process of image research; on the other hand, the demand for differentiation between different types of police is getting higher and higher, and the business attributes of the monitoring platform are becoming more and more obvious.

To sum up, the video era of Ping an City is a stage of development with codec technology as the core and video reading as the main means. The infrastructure construction and technology accumulation at this stage consolidate the foundation for smart city construction, provide valuable experience, and have very important historical value and practical significance. However, we also need to see the technological limitations of the video era. At present, in the new stage marked by smart city construction, codec technology is not the key technology to solve the problem of intelligent perception, and video reading based on manual screening can not solve the task of early warning and data analysis. Therefore, the construction of the new generation of Ping an city is mainly based on the front end with intelligent perception ability all over the corner of the city, and the structured processing of view data is realized through pattern recognition technology. fundamentally change the video application mode of the previous era with manual discrimination as the main means, through big data modeling, comparison, analysis, collision, to promote public security management from post-processing to pre-warning. The Ping an urban data era, which is mainly characterized by data, will raise our urban safety management level to a new level.

At the Shenzhen Security Exhibition Forum in 2009, the three experts of the Ministry of Public Security introduced the concept of data structure to the security monitoring industry for the first time. The video data generated by traditional security surveillance is a typical unstructured data. In the process of video retrieval, there is no other retrieval method except for the retrieval conditions of time latitude. One of the most direct problems caused by this is the extremely low efficiency of video reading. The detective police often need to work overtime in the process of image research and judgment, and sometimes even stay up all night staring at the screen to look for clues. If there is a method that can automatically extract the key information such as people, cars and objects in the video, and describe it with keywords, so that the content in the video can be retrieved like text information, then this will fundamentally change the application mode of video. The structure of video data with pattern recognition as the core technology solves this problem. To put it simply, pattern recognition technology is to capture the key features of objects for modeling, form a feature library, and compare the frame captured in the video with the feature library, so as to realize the recognition of people, cars, objects and other feature samples. to form structured data. The monitoring equipment throughout the next generation of Ping an cities will generate massive structured data, which will provide key data support for the operation and management of smart cities. In this process, the author believes that there will be three key issues:

The first aspect is data generation.

Where does structured data come from? In the 13th five-year Plan document, the Ministry of Public Security put forward the concept of the construction of the video analysis center, took the video analysis center as the focus in the later stage of the Golden Shield project, and clearly gave the implementation plan of the video analysis center in the 41st task of the public security reform. it points out the direction for video data processing. Through the centralized deployment of high-performance video resolution servers in provincial offices and municipal bureaus, the fast processing of video is realized. At this stage, it is necessary and feasible to realize the data structure processing of the key parts through the back-end. In the long run, intelligent moving forward is an inevitable development trend, and the front-end camera with intelligent perception capability will be popular in Ping an city and become the tentacles of data collection and the terminal of data generation. to provide a continuous stream of basic data for smart cities.

The second aspect is data integration.

Data is the blood of the next generation of safe cities and the basis for assisting urban management and decision-making. The quality of data integration will directly affect the later application, and in the process of data integration, there are mainly two problems: data standardization and data sharing. In 2011, the Ministry of Public Security proposed to establish a video image information database in the "Task Book of Video Image Information Integration and sharing of Public Security organs", and local public security authorities also carried out many attempts with industry manufacturers. Everyone is looking forward to a standardized standard on structured video description. Fortunately, according to various news feedback, this standard is about to be published, and the upcoming GB specification will make data description have rules to follow. On the other hand, data sharing not only needs to solve technical problems, but also needs to break down the barriers between various government departments and share data, which requires government departments to innovate management methods and break through administrative means. guarantee in the management system. Only by solving the problem of data specification and data sharing, can we integrate the data and provide support for the data application.

The third aspect is data application.

In the final analysis, all technologies will serve the application, and what kind of change can bring to urban management is the final proposition. From the perspective of the public security industry, big data will become an important decision-making basis for a series of policing activities, such as public security prevention and control, command and dispatching, investigation and judgment, and will have a profound impact on the development of policing activities. The following are two small examples given by the author: (1) the criminal investigation police input the photos of the criminal suspect into the face big data system, which will retrieve its historical data from the Ping an city monitoring network system, automatically describe the movement trajectory and analyze the foothold, and can carry out city-wide control and real-time early warning through the monitoring network system. (2) through the traffic big data system, the traffic police can intelligently monitor the operation of urban traffic, give early warning to the road sections that may be congested, and control the traffic flow through signal lights to avoid traffic congestion and provide more convenient services for people to travel. In the future, there will be more and more similar intelligent applications, which can be realized by combining emancipation of the mind with technological innovation. In a word, massive video will no longer be a data grave, and the rich intelligence information it contains will provide real support for the public security's development policy of "intelligence-led policing".

Finally, urbanization is the only way for the development of our country, and building a smart city is an important development strategy to promote the transformation of the national economy and build a harmonious society, and Ping an City is an important part of the smart city. Its construction and development will play a key role in the smart city. Therefore, we security people should open our arms to welcome the arrival of the next generation of safe cities, seek common development, and contribute to the prosperity of the motherland!

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