Road surface detection method and system

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...

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

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