Vehicle information sensing system and method

Abstract

The invention discloses a vehicle information sensing system and method. The system comprises a vehicle-mounted unit, a plurality of sensing units and a comprehensive management platform. The vehicle-mounted unit is arranged in a vehicle and used for sending vehicle information at least containing vehicle identity information to the sensing units. The sensing units are distributed along a road and communicated through a wireless self-organization communication network. The sensing units are used for receiving the vehicle information and sending the vehicle information to the comprehensive management platform. The comprehensive management platform is used for obtaining vehicle speeds, vehicle positions and/or traffic flow information according to the received vehicle information. The vehicle information of the road can be obtained in time.

Description

technical field [0001] The invention belongs to the field of road traffic, in particular to a vehicle information perception system and method. Background technique [0002] In recent years, my country's highway construction and development are in full swing, and the mileage of traffic has continued to increase. By the end of 2011, the mileage of my country's highways had reached 85,000 kilometers. At present, the highway toll collection method is still dominated by the traditional MTC method. The toll collection process under the MTC method is complex and inefficient, which limits the speed of vehicles and greatly limits the expressway traffic capacity; and the use of cash to pay fees also brings great inconvenience to users. Therefore, This way of charging is increasingly unable to meet the needs of economic and social development. On the other hand, traffic jams and even traffic jams often occur at expressway toll stations with large traffic volumes. The increase in par...

AI Technical Summary

Problems solved by technology

The traditional loop coil vehicle detector is the most widely used detector in the traffic field at present, but the system cost is high, and the establishment and maintenance need to dig the road, which is time-consuming and labor-intensive and affects traffic

The video traffic vehicle detection system uses image processing technology to realize the calculation of traffic target detection. It is one of the current expressway vehicle detection technologies, but the real-time performance of image processing is poor, the requirements for on-site lighting conditions are high, the price is high, and it is not suitable for fast movement. Object detection accuracy is poor

Microwave monitoring system, the measurement method is more accurate on roads with a single vehicle model, stable traffic flow, and uniform speed distribution, but in the case of large traffic flow and mixed vehicle models, the measurement accuracy will be greatly affected, and it is difficult to install and expensive

Traditional vehicle perception products have many shortcomings such as large investment, difficult construction, high use and maintenance costs, poor information collection range and quality, and often cannot meet the requirements of all-round visibility, measurability, and controllability of the highway network.

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