Automatic vehicle type identification device and method based on laser radar

Abstract

The invention discloses an automatic vehicle type identification device based on laser radar. The device comprises a support, the laser radar arranged on the support, an auxiliary characteristic identification camera arranged on the support, and an industrial personal computer connected with the laser radar and the auxiliary characteristic identification camera through a circuit, wherein the industrial personal computer extracts vehicle outline data acquired by the laser radar and vehicle position information acquired by the auxiliary characteristic identification camera and conducts background data processing and characteristic extraction. According to the device, vehicle outline scanning and reconstruction are conducted with the laser radar and other auxiliary equipment, then various characteristics used for vehicle type identification are extracted from reconstructed vehicle outline data, finally the vehicle type is obtained through matching, and therefore short charging caused by license faking and secret replacement of vehicle equipment is avoided; the number of auxiliary equipment needed is small, identification accuracy is high, installation and maintenance are convenient, and research value is high; meanwhile, the method can be used for identifying vehicles on two adjacent lanes at the same time, and therefore using cost is reduced.

Description

technical field [0001] The invention relates to a vehicle vehicle identification technology used in a crossing toll collection system, in particular to a laser radar-based automatic vehicle vehicle identification device and an identification method thereof. Background technique [0002] In recent years, with the rapid economic development of major cities in my country and the continuous expansion of economic scale, the round-trip traffic flow and traffic flow density between cities are very large, and the requirements for road service levels have also become higher. Therefore, the demand for Electronic Toll Collection System (ETC) is increasing day by day. Although the manual toll collection method in my country at this stage will still occupy a dominant position for a long time, the non-stop and non-cash toll collection method is more and more welcomed by expressway operating companies and drivers. This can effectively reduce the congestion of vehicles at expressway crossin...

AI Technical Summary

Problems solved by technology

This fully image-based recognition system simplifies the recognition of vehicle models, but the environment and vehicle color have a huge impact on the recognition of this vehicle model. When encountering heavy rain, heavy fog, or the color of the vehicle is similar to the color of the environment , which increases the difficulty of vehicle identification, so it has not been widely used

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