| 摘要 |
PROBLEM TO BE SOLVED: To provide a dimension measuring device for accurately measuring dimensions of a building material while conveying the building material.SOLUTION: A measuring device of a building material includes: a conveyance device 2 which conveys a building material 1; a sensor 5 which detects a front end point F and a rear end point R of the building material 1; a camera 10 which photographs images of the front end 6 and the rear end 8 of the building material 1; and a control device which calculates distance from the front end point F to the rear end point R as a basic dimension, draws a first virtual straight line which passes through the front end point F and is perpendicular to a conveyance direction of the building material 1, measures distance deviated in front and rear most from the first virtual straight line of a front edge 3, calculates an average value between both as a first correction amount, draws a second virtual straight line which passes through the rear end point R and is perpendicular to the conveyance direction of the building material 1, measures distance deviated in rear and front most from the second virtual straight line of a rear edge 4 of the building material 1, calculates an average value between both as a second correction amount, and measures an average dimension of the building material 1 in the conveyance direction by adding the first correction amount and the second correction amount to the basic dimension. |
