BWIM Non touch-pseudostatic Bridge Weight in motion device and the method of it

摘要

The present invention relates to a non-contact deflection measurement-based BWIM measuring apparatus and method, and more particularly, to a non-contact deflection measuring-based BWIM measuring apparatus and method capable of calculating the weight of a vehicle passing through a bridge through measurement of a deflection displacement amount of the bridge More particularly, the present invention relates to a non-contact deflection measurement-based BWIM measuring apparatus capable of calculating the weight of a vehicle passing through a bridge through measurement of a deflection displacement of the bridge. The database unit 500 provides stiffness information of the bridge B,; A first sensor 310 for sensing a vehicle V passing through the bridge B; A second sensor 320 for measuring a deflection displacement value d of the bridge B in real time when the vehicle V is sensed from the first sensor 310; The deflection value filtered by the measured deflection displacement value d and the stiffness information of the bridge B are used in connection with the database unit 500, the first sensor 310 and the second sensor 320, And a control unit (400) for deriving a total weight of the vehicle (V), wherein the weight measured by the constant deflection amount of the bridge according to the vehicle weight is closer to the measured weight The error range between the two can be drastically reduced, thereby enabling more precise overspeed control.;