To provide a road surface damage detection system capable of properly detecting road surface damage when damage occurs on the road surface in each road section.SOLUTION: For each road section, the maximum fluctuation ratio that is the maximum value of the fluctuation amount of the wheel speed per unit time for each vehicle is calculated. Then, for each road section, regularly, the maximum value is selected from the maximum fluctuation ratio of each vehicle within the first predetermined period and is set as the section maximum fluctuation ratio, and it is determined whether any road surface damage has occurred by comparing the interval maximum fluctuation with a threshold value. And, for each road section, the threshold value is set based on the behavior of each vehicle when a second predetermined period or a predetermined condition is satisfied.SELECTED DRAWING: Figure 2
【課題】各道路区間について、路面損傷が生じたときに、その路面損傷を適切に検出する。【解決手段】各道路区間について、各車両についての車輪速の単位時間当たりの変動量の最大値である最大変動率を演算する。続いて、各道路区間について、定期的に、第1所定期間内の各車両の最大変動率から最大値を選択して区間最大変動率に設定すると共に、区間最大変動率を閾値と比較して路面損傷が生じたか否かを判定する。そして、各道路区間について、第2所定期間内または所定条件を満たしたときの各車両の挙動に基づいて閾値を設定する。【選択図】図2
ROAD SURFACE DAMAGE DETECTION SYSTEM, ROAD SURFACE DAMAGE DETECTION METHOD, PROGRAM
路面損傷検出装置、路面損傷検出方法、プログラム
2021-06-03
Patent
Electronic Resource
Japanese
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