A presentation on "Elevator Health Monitoring Using An Inertial Measurement Unit". This research is conducted by Kazi Ragib Ishraq Sanim under the supervision of Professor Dr. Md. Zahurul Haq for the partial fulfillment of the requirements for the degree of Bachelor of Science in Mechanical Engineering degree from Bangladesh University of Engineering and Technology.
Abstract: Elevator performance deteriorates over time. Slightest offset in the guide rails, non-uniformity in car velocity and acceleration, faulty motor and brakes of an elevator can create an unpleasant and undesirable user experience. This thesis proposes the use of a low-cost Inertial Measurement Unit (IMU) for inspection and monitoring of elevator health with the help of the acceleration profile of the elevator journey in both vertical and lateral directions. It also compares the performance of a Savitzky-Golay filter and a Kalman Filter on the raw acceleration data for eliminating high-frequency noise while maintaining the actual shape of the profile. The profile in the vertical direction can infer the health of the motor and brake, while the lateral acceleration profile can identify the source of undesirable vibrations. Finally, different elevator parameters are also extracted in this study to check compliance with the local building regulations.
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