Road evenness detection method and road evenness detection system

A detection method and smoothness technology, which is applied in the field of road smoothness detection methods and systems, and can solve problems such as inaccurate results

Active Publication Date: 2012-07-25
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

However, in the process of road detection, signal sources include various road conditions (such as flat roads, manhole covers, speed bump

Method used

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  • Road evenness detection method and road evenness detection system
  • Road evenness detection method and road evenness detection system
  • Road evenness detection method and road evenness detection system

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Embodiment Construction

[0045] Such as figure 1 Shown is a flow chart of the road roughness detection method. Include the following steps:

[0046] Step S110, acquiring the three-axis acceleration signal, direction signal, position signal and speed signal of the test vehicle.

[0047] A three-axis accelerometer is a type of motion sensor that can independently measure acceleration components in three directions in space. In this embodiment, the three-axis acceleration signals detected by the three-axis accelerometer are respectively the X-axis acceleration, Y-axis acceleration, and Z-axis acceleration measured by the test.

[0048] The gyroscope is a device for detecting angular motion around one or two axes perpendicular to the rotation axis by using the momentum moment sensitive shell of the high-speed rotating body relative to the inertial space. In this embodiment, what the gyroscope detects is the pitch angle direction signal of the test vehicle.

[0049] GPS (global positioning system, glob...

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Abstract

The invention relates to a road evenness detection method and a road evenness detection system. The road evenness detection method, which enables a test vehicle to run on a road to be detected to acquire the evenness of the road to be detected, includes the following steps: the triaxial acceleration signal, direction signal and position and speed signals of the tested vehicle are acquired; trained classifiers are adopted to filter pavement events corresponding to the acceleration signal, the direction signal and the position and speed signals within the same period of time in order to acquire road evenness information; the classifiers comprise a first classifier, a second classifier, a third classifier, a fourth classifier and a fifth classifier, the first classifier is used for filtering the manhole cover and pavement speed-reducing device events according to the direction signal, the other interference events are filtered by the second classifier, the third classifier, the fourth classifier and the fifth classifier, consequently, the interference events in road detection are filtered, and finally, an accurately detected road pit condition is obtained.

Description

【Technical field】 [0001] The invention relates to a road detection method, in particular to a road roughness detection method and system. 【Background technique】 [0002] Uneven municipal roads not only affect road safety, reduce driving comfort, and increase driving noise pollution; but also increase vehicle operating costs (such as increased fuel consumption, reduced driving speed, and increased wear of vehicle parts), while accelerating structural damage. It affects the service life of the pavement, shortens the maintenance cycle, and brings harm to people's daily life. Therefore, it is of great significance to adopt an effective technical means to realize the detection of whether the municipal road is level or not to reduce the harm it brings to people. However, in the process of road detection, signal sources include various road conditions (such as flat roads, manhole covers, speed bumps, railway and highway intersections, bridge metal joints, etc.) causing the vehicl...

Claims

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Application Information

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IPC IPC(8): G01B21/30
Inventor 鲁鸣鸣张小林陈孔阳黄晓霞
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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