AXLE LOAD MEASURING INSTRUMENT, AND SYSTEM AND METHOD FOR CONFIRMING MEASUREMENT ACCURACY OF THE SAME

摘要

PROBLEM TO BE SOLVED: To perform a traveling test for confirming the measurement accuracy of an axle load measuring instrument, without performing road regulation, and easily obtain a history of the measurement accuracy.;SOLUTION: In the measuring instrument body 5 of the axle load measuring instrument 20A, the license plate number, a known axle load, and a known total weight of a test vehicle are stored beforehand as known data, and a tolerance for the error of an axle load and a tolerance for the error of a total weight are stored beforehand as determining data to be used for determining the measurement accuracy. The test vehicle is identified by photographing the license plates of travelling vehicles with an imaging camera 4 and reading the numbers of the vehicles. Concerning the identified test vehicle, the errors of an axle load and a total weight measured based on load sensors S1-S3, from the known axle load and the known total weight are calculated respectively, and the measurement accuracy is determined depending on whether the errors are within their tolerances.;COPYRIGHT: (C)2011,JPO&INPIT