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Road surface detection method and system

A road pavement and detection method technology, applied in the field of signal processing, can solve the problems of low monitoring efficiency, limited inspection range, and long inspection cycle, so as to reduce the amount of data transmission and calculation, save network bandwidth, and reduce the missed detection rate Effect

Active Publication Date: 2013-09-04
广东碳中和研究院(韶关)
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AI Technical Summary

Problems solved by technology

[0002] The traditional road pavement inspection process is mainly carried out through manual spot checks on the road pavement to form written inspection reports and spontaneous reports from the masses, but these two methods have the following disadvantages: huge labor costs are required, and key monitoring cannot be effectively selected area, the inspection period is long, the monitoring efficiency is low, and the scope of inspection is also very limited
However, since the vehicle-mounted sensor system transmits the collected data without processing it, and only needs the data collected when the vehicle passes through the speed bump or manhole cover, pit, and soil bag for road surface detection, the data transmitted by the vehicle-mounted sensor system Only a small part of the data is valid data, which consumes a huge amount of data transmission

Method used

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  • Road surface detection method and system

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Experimental program
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Embodiment Construction

[0074] figure 1 A method flow for road surface detection in an embodiment is shown, including the following steps:

[0075] Step S110, collecting acceleration through road driving.

[0076] In this embodiment, the road surface is usually flat, but due to defects in road quality, etc., there are also raised or sunken places, for example, there may be raised places such as speed bumps and soil bumps on the road surface, and also There may be sunken places such as manhole covers and pits, so the collected acceleration can effectively reflect the changes of the road surface. The collected acceleration includes the acceleration in three directions in the three-dimensional space, that is, the acceleration in the vertical direction. During the driving process on the road surface, any acceleration corresponding to various movement changes such as shaking, falling, rising and falling are collected to obtain a series of acceleration sequences.

[0077] Step S130, determining a mixed G...

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Abstract

The invention relates to a road surface detection method, comprising the steps of: collecting accelerations through road surface driving; determining a Gaussian mixture model based on a collected acceleration of the vertical direction; judging whether the acceleration of the vertical direction matches with the Gaussian mixture model through a matching test, and if not, transmitting the collected accelerations. The road surface detection method and system of the invention are characterized by collecting an acceleration of the vertical direction for a matching test in a Gaussian mixture model so as to obtain the acceleration unmatching with the Gaussian mixture model. The acceleration is of the vertical direction, so it corresponds to an acceleration of a vehicle when it passes a deceleration strip or a manhole cover, pit and mound. If the acceleration of the vertical direction matches with the Gaussian mixture model, the collected accelerations are subjected to data transmission. Thus, under the condition of not losing information, data transmission and calculation amounts can be reduced, and the network bandwidth can be saved.

Description

【Technical field】 [0001] The invention relates to signal processing technology, in particular to a road surface detection method and system. 【Background technique】 [0002] The traditional road pavement inspection process is mainly carried out through manual spot checks on the road pavement to form written inspection reports and spontaneous reports from the masses, but these two methods have the following disadvantages: they require huge labor costs and cannot effectively select key monitoring The inspection cycle is long, the monitoring efficiency is low, and the scope of inspection is also very limited. Therefore, in order to overcome the above-mentioned shortcomings, an on-board sensor system installed in the vehicle is used to monitor road conditions. [0003] The vehicle-mounted sensor system transmits the collected data to the server after collecting data during the driving process of the vehicle. However, since the vehicle-mounted sensor system transmits the collect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01
Inventor 鲁鸣鸣魏明明吕婧黄晓霞
Owner 广东碳中和研究院(韶关)
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