Bridge deflection detection device and measurement method for unmanned aerial vehicle

• Main Authors: LIU XIN, LIANG JINFU, SU GUOSHAO, WANG JUNMU, HOU PAN, QIN YUANZHUO, XU HUAJIE
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2022
• Subjects: AEROPLANES; AIRCRAFT; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; AVIATION; COSMONAUTICS; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; HELICOPTERS; MEASURING; PARACHUTES; PERFORMING OPERATIONS; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; TRANSPORTING

The invention belongs to the field of bridge measurement, and discloses a bridge deflection detection device and method for an unmanned aerial vehicle. The device comprises a laser ranging module, a double-shaft holder, a data storage module, a data processing module, a transmission module, a control module and a base, and is carried on an unmanned aerial vehicle platform. The measuring method is suitable for an arched bridge and a box-girder-shaped bridge and comprises the steps that distance parameters and angle parameters of measuring points on the central axis of the bottom of the bridge are obtained, a bridge deflection curve is calculated with an unmanned aerial vehicle as a coordinate origin according to the two parameters, repeated measurement is carried out, adjustment processing is carried out on multiple sets of data, and a final result is obtained through calculation. The device is high in modularization degree, simple in structure, convenient to install, low in cost, large in measurement range, f