Pavement crack recognition device based on camera and line laser and recognition method of pavement crack recognition device

Abstract

The invention belongs to the technical field of pavement crack recognition, and discloses a pavement crack recognition device based on a camera and a line laser, and a recognition method of the pavement crack recognition device. The pavement crack recognition device based on the camera and the line laser comprises a pulse counter, an industrial personal computer, a vehicle, a line laser fixedly mounted in the center of the head of the vehicle and a flat plate extending forward from the center of the head top of the vehicle; an area-array camera is fixed below one end of the flat plate; the angle between a laser head of the line laser and the horizontal plane is 40-80 degrees; a lens of the area-array camera vertically faces the ground; a rotary shaft of a rear wheel of the vehicle is coaxially sleeved with an incremental rotary encoder; the incremental rotary encoder is electrically connected with a counting end of the pulse counter; the output end of the pulse counter is electrically connected with a PCI card; the PCI card is inserted into a PCI slot of the industrial personal computer; the area-array camera is electrically connected with the PCI card through a Camera Link wire.

Description

technical field [0001] The invention belongs to the technical field of pavement crack recognition, and in particular relates to a pavement crack recognition device and a recognition method based on a camera and a line laser. Background technique [0002] With the rapid development of highway construction in my country and the improvement of highway network construction, more and more attention has been paid to highway maintenance. After the road is built, due to the repeated rolling of the wheels and the influence of various natural factors such as ice, rain, and snow, the road surface will be damaged such as cracks and bumps. Pavement cracks are one of the main forms of pavement disease, which will affect the safety of driving and the service life of roads. Pavement cracks are an important indicator for evaluating road quality. [0003] At present, the detection of pavement cracks mainly includes manual detection and camera detection. When manually detecting pavement crac...

AI Technical Summary

Problems solved by technology

However, the camera detection method is easily disturbed by the garbage on the road surface, and it is easy to misidentify the dirt stuck on the road surface as cracks, resulting in low recognition accuracy.

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