A kind of tunnel inspection method

Abstract

The invention discloses a tunnel inspection method, which includes the following steps: S1: the flaw detection mobile platform enters the tunnel area, and adjusts the center of the ring where multiple CCD cameras on the flaw detection mobile platform are located to the center of the tunnel to ensure that multiple The distance between the CCD camera and the inner lining of the tunnel is the same, and then the tunnel inspection is started; S2: According to the displacement of the flaw detection mobile platform, a synchronous pulse cycle signal is sent every fixed distance to trigger multiple CCD cameras and multiple auxiliary light sources to work synchronously. Shooting of tunnel lining images; S3: Real-time acquisition of tunnel lining images, and numbering of tunnel lining images combined with synchronous pulse cycle signals; S4: Image recognition and disease point labeling of numbered tunnel lining images, At the same time, the images of the tunnel lining after the disease points are marked are spliced ​​and displayed in real time. The invention has the technical characteristics of fast detection speed, high timeliness, high recognition accuracy, accurate inspection and positioning, and clear photographed images.

Description

technical field [0001] The invention belongs to the technical field of tunnel inspection, and in particular relates to a tunnel inspection method. Background technique [0002] With the rapid development of urban rail transit in recent years, more and more attention has been paid to the safety of subway tunnels; tunnel problems such as cracking, leakage, and cable leakage in the tunnel will seriously affect the safety of rail transit, so tunnel inspection work is appears to be particularly important. [0003] At present, domestic tunnel inspection work mainly relies on manual work, which leads to low overall efficiency, low accuracy, easy missed inspections, and long time-consuming tunnel inspection operations. At present, the automatic intelligent inspection devices are mostly used in large-scale inspection vehicles with complex structures and high costs. In particular, the existing inspection inspection vehicles are not time-sensitive, and tunnel image collection is requi...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic tunnel inspection work mainly relies on manual work, which leads to low overall efficiency, low accuracy, easy missed inspections, and long time-consuming tunnel inspection operations.

At present, the automatic intelligent inspection devices are mostly used in large-scale inspection vehicles with complex structures and high costs. In particular, the existing inspection inspection vehicles are not time-sensitive, and tunnel image collection is required first. Due to the difficulty of image processing and the speed It is slow. After collecting all the images of the tunnel, the tunnel image processing and disease point detection will be performed on the background platform. After the disease is found, it will be notified to the maintenance and other departments to deal with it. This will lead to a very long cycle of tunnel inspection and post-processing.

Images