公开(公告)号：US20180245969A1

公开(公告)日：2018-08-30

申请号：US15886891

申请日：2018-02-02

申请人： Panasonic Intellectual Propety Management Co., Ltd

发明人： TARO IMAGAWA ,  AKIHIRO NODA ,  HIROYA KUSAKA

IPC分类号： G01G23/01 ,  G01G19/02 ,  G01G9/00

CPC分类号： G01G23/01 ,  G01G9/005 ,  G01G19/022 ,  G01G19/08

摘要： A calibration device is a calibration device configured to calibrate a load meter that measures an axle load of a vehicle. The calibration device includes a detector and a calibrator. The detector detects a displacement amount corresponding to displacement caused on a road by the axle load of the vehicle. The calibrator aggregates the displacement amounts detected by the detector to generate a histogram of the displacement amounts, and updates a displacement coefficient for calculating the axle load of the vehicle based on a shape of the histogram. The calibrator updates the displacement coefficient base only on the shape of the histogram corresponding to a first axle serving as a forefront axle of the vehicle.