Trajectory Clustering Approach for Reducing Water Quality Event False Alarms
Publication: World Environmental and Water Resources Congress 2009: Great Rivers
Abstract
Event Detection Systems (EDS) performance is hindered by false alarms that cause unnecessary resource expenditure by the utility and undermine confidence in the EDS operation. Changes in water quality due to operational changes in the utility hydraulics can cause a significant number of false alarms. These changes may occur daily and each instance produces similar changes in the multivariate water quality pattern. Recognizing that patterns of water quality change must be identified, we adapt trajectory clustering as a means of classifying these multivariate patterns. We develop a general approach for dealing with changes in utility operations that impact water quality. This approach uses historical data water quality data from the utility to identify recurring patterns and retains those patterns in a library that can be accessed during online operation. We have implemented this pattern matching capability within CANARY and describe several example applications that demonstrate a decrease in false alarms.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Buildings
- Computer networks
- Computing in civil engineering
- Environmental engineering
- Facilities (by type)
- Hydraulic engineering
- Hydraulics
- Hydrologic data
- Hydrologic engineering
- Hydrology
- Infrastructure
- Internet
- Lifeline systems
- Public buildings
- Structural engineering
- Structures (by type)
- Utilities
- Water and water resources
- Water management
- Water policy
- Water quality
- Water resources
- Water treatment
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