Traffic management off-site law enforcement system, mainly refers to our commonly known electronic police system. Off site law enforcement is to capture and collect evidence of traffic violations through “electronic eye”, and then punish vehicle owners with traffic fines and points deduction according to law.

The application of electronic police system in China began in 1997. In April 1997, Shenzhen traffic police took the lead in installing and using electronic monitoring system in China, and launched off-site law enforcement management mode, which declared that China’s traffic law enforcement began to enter the era of off-site law enforcement.

In September of that year, the traffic control bureau of the Ministry of public security officially issued a document, requiring cities at prefecture level or above in China to introduce electronic police law enforcement (off-site law enforcement) according to the practice of Shenzhen. Since then, the electronic police system has been widely used in the whole country.

In the early days, the function of electronic police was single, and the image quality and intelligent level were very low. Traditional electronic police cameras mainly take illegal photos in urban roads, intersections and other areas, covering a range of about 30 meters, and the required speed is relatively low. When the speed is high, it is difficult to capture traffic violations.

Since then, the e-police system has been mature and developed. After several iterations and upgrades, the application of e-police system has gradually matured. At present, the common electronic police system in the market is mainly composed of bayonet, electric police, illegal stop racket machine, etc.

Through AI front-end acquisition equipment, the system captures uncivilized traffic behaviors, such as motor vehicles running red lights, speeding, adding traffic jams, changing lanes, stopping at will, running forbidden, not driving according to regulations; drivers not wearing seat belts, driving on the phone to see mobile phones; non motor vehicles driving into the motorway, running red lights, retrograde; pedestrians running red lights and other illegal behaviors.

AI enabled electronic police

Due to the mature application of AI technology, the application of electronic police system in China ushers in a new era. In contrast, AI electronic police is more accurate than human judgment and has less error rate.

With the help of deep learning and machine vision, AI front-end camera can realize the analysis and judgment of traffic violations, recognize vehicles and faces, store data, and analyze and obtain evidence of dozens of violations through big data and artificial intelligence algorithm technology, so as to complete the research, judgment and evidence collection of traffic violations.

In addition, it can also achieve accurate traffic management for key people and vehicles.

With the mature application of face recognition technology and the establishment and improvement of face database, some cities began to use pedestrian red light running face recognition system at traffic intersections to capture and expose violations such as pedestrian and non motorized red light running.

The intelligent ability of AI based e-police has been greatly improved, which greatly improves the traffic efficiency of urban peak and greatly reduces the road accident congestion alarm.

Taking Beijing as an example, we will comprehensively carry out the construction of intelligent transportation system demonstration project with CBD as the pilot area in 2019. According to AI and traffic big data, we will comprehensively analyze the 24-hour traffic volume change law of each light controlled intersection, and divide the signal regulation period of intersection into two night low peaks, two peaks and one flat peak, so as to automatically balance the overall traffic pressure of the area.

In order to achieve the CBD regional traffic brain full coverage, including pedestrian crossing, intelligent spike prompt equipment, regional vehicle road collaborative control system, multiple road electronic police and other facilities.

After more than 20 years of development, the application of electronic police system in China has been very mature, but there is still room for improvement. Because the demand of intelligent application constantly drives the innovation and development of electronic police technology.

Urban traffic brain & Electronic Police

Electronic police system produces a large number of pictures and video data every day, which brings great pressure on the efficiency and accuracy of law enforcement. Therefore, urban “traffic brain” + AI electronic police become the best way to manage urban traffic and solve urban traffic congestion.

In the face of complex urban traffic conditions, the real-time traffic data is observed by AI video acquisition sensor system, and then the traffic data is sorted out by the urban “traffic brain”, so as to predict the traffic congestion in each section of the city.

On this basis, through AI technology to automatically complete the optimization of traffic signal timing and automatic time division, can greatly improve the efficiency of urban road traffic.

“Traffic brain” is an important part of “city brain”, and it is also the nerve center of the city. Let’s take Alibaba cloud’s “city brain” as an example.

In 2017, Alibaba cloud released “city brain 1.0”, which was first applied in Hangzhou. Thanks to the “city brain”, Hangzhou’s traffic efficiency has been continuously improved, dropping from the fifth most congested city in China to after 50.

In 2018, Alibaba cloud released Hangzhou “urban brain 2.0”. “City brain 2.0” covers an area of 420 square kilometers in Hangzhou, takes over 1300 intersection signal lights, accesses 4500 channels of video, and directly commands more than 200 traffic police in Hangzhou through mobile terminals.

In June 2020, at the 2020 Alibaba cloud summit, Alibaba cloud launched “city brain 3.0” again.

In addition to Ali, many domestic enterprises with leading technology have launched their own “traffic brain”.

In December 2018, “Jinan traffic brain” was officially launched. The core of “Jinan traffic brain” is “one cloud and four centers”. Among them, “one cloud” is the exclusive traffic cloud, which is the data warehouse and computing basis of the whole traffic brain. It collects government data (checkpoint, two passengers and one danger, muck truck, bus, etc.), Internet data and other kinds of data as the basic data of traffic brain. The four centers are composed of perception center, analysis center, decision center and evaluation center.

By July 2019, “Jinan traffic brain” has integrated the data of 380000 floating cars, more than 20000 parking spaces and 80000 shared bicycles in the city, more than 2800 high-definition video surveillance, 50 eagle eye panoramic surveillance, more than 1200 signalers, 560 geomagnetics, 108 guidance screens and other traffic equipment and facilities, as well as real-time positioning information of police vehicles and police forces, and has collected vehicle information every day 18 million vehicles.

Jinan “traffic brain” is organized by Jinan traffic police detachment. Shandong University is responsible for the top-level design. Didi travel, as the main development unit, is jointly implemented by several units, such as Century Express, Inspur Group, Hisense and ISA.

In April 2019, Qingdao Hisense network technology, combined with its profound accumulation in the field of intelligent traffic management, launched the “traffic management cloud brain”. Through Hisense AI automatic diagnosis, with the help of intelligent equipment at the intersection, the traffic flow detection data is collected, so as to accurately identify the congestion problem.

“Traffic management cloud brain” has constructed an advanced technical framework of the industry, has a strong traffic management business knowledge base and interactive artificial intelligence platform, and can realize the search of any entity of 100 million level traffic knowledge map, with the search time of 200 ms.

At the same time, Guan yunnao’s AI automatic diagnosis can also find out the problems such as unreasonable time division and unbalanced distribution of green signal ratio, so as to provide the basis for road traffic optimization.

Hisense’s “traffic management cloud brain” is known as “the artificial intelligence system that knows the traffic police business best in the field of intelligent transportation in China”.

In August 2019, iFLYTEK launched the “traffic Super Brain” based on iFLYTEK’s speech recognition, speech synthesis, semantic understanding and other artificial intelligence technologies, which has been successfully applied in Hefei.

“Traffic Super Brain” is a delicacy management solution that iFLYTEK uses the combination of artificial intelligence technology and traffic big data to enable traffic. With more comprehensive data access, more accurate traffic perception and more intelligent signal timing optimization, it brings a lot of convenience for urban traffic.

According to statistics, Hefei traffic police access 12 million data such as bayonet, electric police and geomagnetism of public security traffic police every day, 10 million data of bayonet of public security Skynet, 150 million data of Internet road condition, and 15 million data of urban parking, transportation management and public transportation.

Six indexes of traffic super brain, such as traffic congestion index, average speed and traffic flow, are used to monitor the urban road conditions in Hefei. At present, the monitoring scope has covered 1017 intersections and 649 roads in Hefei. Since it was put into operation, the traffic operation in Hefei has been greatly improved.

Concluding remarks

A seemingly ordinary electronic police system, in fact, carries too much technology and application innovation, becoming an epitome of the integration of intelligent monitoring and intelligent traffic management application innovation. From traffic police holding traffic batons to traffic lights, to cameras + traffic lights, to today’s AI electronic police With the development of urban traffic, China’s traffic management has gone through a long road of innovation and exploration. The iterative upgrading development of electronic police system has also become an epitome of the development of China’s traffic management and intelligent transportation system.

Editor in charge: GT

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