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Road rut detection method

A detection method and rutting technology, applied in the field of highway maintenance, can solve problems such as inaccurate detection data, reduced accuracy of road surface elevation, and detection errors, and achieve the effects of simple measurement process, reduced cost of rut detection, and improved accuracy

Active Publication Date: 2010-12-29
ROADMAINT CO LTD
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Problems solved by technology

[0006] In view of this, the present invention is to provide a road surface rutting detection method to solve the problem that the accuracy of the corrected road surface elevation is greatly reduced and the detection data is inaccurate due to detection errors in the acceleration displacement detection device or the gyro fixed attitude detection device. question

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Embodiment Construction

[0023] In order to clearly illustrate the solutions in the present invention, preferred embodiments are given below and described in detail with reference to the accompanying drawings.

[0024] The rutting detection scheme of the present invention cancels the acceleration displacement detection device or the gyro fixed attitude detection device, and installs 13-25 laser ranging devices on the steel body of the beam of the measuring vehicle. The installed quantity can be set arbitrarily, and the laser ranging devices The beam steel body that cannot be perpendicular to the car body needs to form a certain angle α with the steel body of the beam, so as to facilitate the vertical distance measured by subsequent operations. During the driving process of the vehicle, it is continuously measured according to a predetermined distance interval (between 1cm and 10cm), and the CPU continuously receives the distance signal of the laser ranging device, and executes the following calculation...

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Abstract

The invention discloses a road rut detection method. In the method, 13 to 25 laser ranging devices are arranged on a cross beam steel body of a measurement vehicle. The method comprises: the laser ranging devices detect the distance to a road according to a preset distance and time interval; a processor works out the corresponding vertical distance from the ground to the cross beam steel body of the measurement vehicle according to the received distance signals which are acquired by the laser ranging devices and the included angle between the processor and the cross beam of the vehicle body; the deformation track curve of a road rut can be acquired according to the obtained vertical distances of the laser ranging devices; the road rut depth can be obtained by using the deformation track curve of the road rut; and road rut data on all sections can be detected quickly by the method. The method of the invention thus is described in detail. In the invention, the measurement process is simple and accurate, devices such as an accelerometer and a gyroscope are not mounted, the rut detection cost is reduced, the detection speed and the accuracy and reliability of the detection result are improved, and the speed of road maintenance is improved.

Description

technical field [0001] The invention relates to the technical field of highway maintenance, in particular to a road rut detection method. Background technique [0002] Road rutting data is one of the important basis for the technical condition assessment of expressways and first-class highways, the analysis of pavement maintenance needs and the optimal allocation of maintenance funds. Accurate detection of road rutting has extremely important practical significance for highway maintenance and management. [0003] With the wide application of laser technology, in view of the problem of fast and accurate detection of road rutting, highway research institutions in the United Kingdom, the United States, Denmark, Sweden and other countries have done a lot of technical research and equipment development work, and developed a series of road rutting rapid detection problems. Detection methods, devices and related standards, including road rutting detection devices based on laser te...

Claims

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Application Information

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IPC IPC(8): E01C23/01G01B11/22
Inventor 潘玉利
Owner ROADMAINT CO LTD
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