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In recent years, with the modernization of cities and the rapid development of social economy, the scale of cities has continued to expand, the number of urban populations and motor vehicles has increased rapidly, the appearance of the city has undergone tremendous changes, the urban layout has become more reasonable, and the road network structure has become more and more perfect. , The conditions of urban road hardware facilities have been upgraded to a new level. With these developments and changes, new and higher requirements have been put forward on the concepts, models, and methods of urban traffic management. Through exploration and practice, Suzhou City has made great progress in the scientific and intelligent transportation management, especially the construction of intelligent transportation system, which has played a very important role in improving the urban transportation environment, improving the level of urban management, and enhancing the image and taste of the city. The role of. Transportation technology has also been developed to a certain extent, but due to the rapid changes in technology and the use of inherent technical means and traditions, it is increasingly difficult to meet the current and future needs of urban transportation development.
In response to such needs, we have developed advanced IoT RFID technology and cloud computing computing platforms, and developed a cloud-to-smart traffic management platform. The design of the entire system is based on improving the overall level of urban public transportation system development as much as possible. The construction of the intelligent monitoring and dispatching system platform of public transportation passenger transportation will eventually form the guiding ideology of the system construction of the passenger transportation management system of “the whole network is centralized, hierarchical monitoring, clear responsibilities, and effective measures”; thereby effectively improving the operating efficiency and benefits of public transportation vehicles, and vigorously Improve the level of public transport management and truly provide passengers with safer, more convenient, faster, comfortable and high-quality services.
System architecture diagram:
The detailed function description is as follows:
Vehicle identification: The vehicle is equipped with RFID electronic license plates, and detailed vehicle information is recorded in the electronic license plates. Each road detection system can read the electronic license plates from a distance to achieve vehicle identification and other functions;
Traffic monitoring: each road detector monitors the speed, number, type, etc. of vehicles passing by the road section in real time, and calculates the real-time traffic flow of the road section;
Lane detection: The system uses all-in-one RFID orientation recognition technology to detect vehicle information in a fixed lane, and the system intuitively obtains real-time vehicle passing information in each lane of the road section;
Vehicle fixed-point speed measurement: each reader reads the time of the vehicle tag, and calculates the running speed of the vehicle;
Intelligent capture of prohibited vehicles: The system combines sensor and video surveillance technology to capture intelligent evidence when non-BRT vehicles enter the BRT lane;
Intelligent early warning of congestion: predict the occurrence of traffic congestion through the analysis of collected data and model simulation, and quickly control traffic lights by detecting control nodes, and scientifically allocate police forces to prevent the formation of congestion.
Traffic guidance: Through the monitoring of various road sections, the system grasps the flow information of each road section in real time, adopts active diversion technology, and reasonably controls and induces road vehicles to avoid large-scale congestion and relieve urban traffic pressure;
Intelligent signal light control: Linked with the detection system, based on the real-time information of BRT vehicles, reasonably control the waiting time and operation mode of the traffic signal light, so that the signal light control is truly intelligent;
The mission goal of this system is to establish a scientific and advanced intelligent traffic management platform, including terminal vehicles, vehicle detectors, cloud-transformed intelligent traffic platforms and other advanced traffic management platforms combined with software and hardware.
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