Tilt Measurement of Buildings Utilizing an Unmanned Aerial Vehicle

Abstract

After an earthquake or other natural disaster, determining building stability and allowing entry into buildings is a key aspect of economic recovery. These assessments need to ensure safety, but economic recovery can be hindered if buildings are assessed incorrectly as unstable. An important factor of assessing building stability is determining building tilt. However, no single device functions exactly as a structural engineer would need for it to accurately assess the degree to which a building is leaning. The device described in this paper uses an absolute orientation sensor, ultrasonic sensor, and a camera, all connected to a Raspberry Pi computer, to determine the tilt of a building quickly and accurately. 

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