Development of optical distance sensor with fast response time
The continuous evolvement of electromechanical systems in the last decade has increased the need for methods to efficiently determine the health of a system. In this paper, we present the development of a coherent anomaly detection system that effectively measures and provides reliable information o...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2019
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| Online Access: | http://hdl.handle.net/10356/77501 |
| _version_ | 1824455646096916480 |
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| author | Lian, Melvin Yue Feng |
| author2 | K. Radhakrishnan |
| author_facet | K. Radhakrishnan Lian, Melvin Yue Feng |
| author_sort | Lian, Melvin Yue Feng |
| collection | NTU |
| description | The continuous evolvement of electromechanical systems in the last decade has increased the need for methods to efficiently determine the health of a system. In this paper, we present the development of a coherent anomaly detection system that effectively measures and provides reliable information on system health through noncontact optical distance sensing. The related hardware was designed with the same feasibility criterion that the developed system needs to be deployed in narrow enclosures such as a motor box. The system operates through continuous data analysis from the sensor-provided data streams to detect anomalies in comparison to a trained feature model obtained through averaging a large set of data obtained from a healthy system. In this work, supervised learning techniques such as linear regression, resampling, dynamic time warping, and barycenter averaging was deployed to tune the model to achieve a satisfactory trade-off between data accuracy and processing speed. The developed system is targeted for use in escalator systems, but it was hypothesized that it may be adapted to other applications with minimal effort. |
| first_indexed | 2025-02-19T03:41:31Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/77501 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:41:31Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/775012023-07-07T16:18:48Z Development of optical distance sensor with fast response time Lian, Melvin Yue Feng K. Radhakrishnan Zhu Yongwei School of Electrical and Electronic Engineering A*STAR Institute for Infocomm Research DRNTU::Engineering::Electrical and electronic engineering The continuous evolvement of electromechanical systems in the last decade has increased the need for methods to efficiently determine the health of a system. In this paper, we present the development of a coherent anomaly detection system that effectively measures and provides reliable information on system health through noncontact optical distance sensing. The related hardware was designed with the same feasibility criterion that the developed system needs to be deployed in narrow enclosures such as a motor box. The system operates through continuous data analysis from the sensor-provided data streams to detect anomalies in comparison to a trained feature model obtained through averaging a large set of data obtained from a healthy system. In this work, supervised learning techniques such as linear regression, resampling, dynamic time warping, and barycenter averaging was deployed to tune the model to achieve a satisfactory trade-off between data accuracy and processing speed. The developed system is targeted for use in escalator systems, but it was hypothesized that it may be adapted to other applications with minimal effort. Bachelor of Engineering (Electrical and Electronic Engineering) 2019-05-30T02:52:47Z 2019-05-30T02:52:47Z 2019 Final Year Project (FYP) http://hdl.handle.net/10356/77501 en Nanyang Technological University 70 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Lian, Melvin Yue Feng Development of optical distance sensor with fast response time |
| title | Development of optical distance sensor with fast response time |
| title_full | Development of optical distance sensor with fast response time |
| title_fullStr | Development of optical distance sensor with fast response time |
| title_full_unstemmed | Development of optical distance sensor with fast response time |
| title_short | Development of optical distance sensor with fast response time |
| title_sort | development of optical distance sensor with fast response time |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | http://hdl.handle.net/10356/77501 |
| work_keys_str_mv | AT lianmelvinyuefeng developmentofopticaldistancesensorwithfastresponsetime |