eVader accurately monitors the whole water network and reports events as they occur
What is it?
eVader is a network event detection system developed from a deep understanding of water flows in networks and the application of robust statistical processes. It has been designed to monitor 1000’s of points simultaneously, and learn what is normal for the network. Crucially, eVader produces an alarm in real time when an abnormal event occurs, before customers become aware of a problem.
eVader has been developed to meet the needs of network operators, providing real-time updates with robust and accurate alarms that the operator can act upon. Thus, improving efficiency, reducing the time customers might be without water, improving resilience and reducing water lost from the network. eVader also provides confirmation that the network has returned to normal conditions after the event has passed.
Real Time Burst Detection
Automatic Leak Detection
Uses Existing Data
Cost Effective & Scalable
How does it work?
eVader works by monitoring time series data from any meter in any network. This data typically has a high level of seasonality since consumption changes through the year, which is one of the reasons why fixed upper and lower control limits are unsuitable alarm methods. It is also the case that flow data is not normally distributed, and neighbouring data points have dependencies with one another, hence flow patterns from one day to the next, or one weekend to the next tend to look similar. This presents particular challenges in applying conventional statistical alarm algorithms.
To overcome this, eVader checks the quality of incoming data, uses algorithms to infill any missing data, and removes seasonality and data dependencies from the original flow trace. The remaining time series data can then be used with standard statistical process control methods. The algorithms use a moving training window to adapt and automatically respond to changing conditions at each site, providing statistical confidence and reliable alarms.
eVader is simple to use, requiring no manual inputs to train the system, and can process 1000’s of monitoring points simultaneously.
eVader produces reliable and accurate event alarms, which allows operators to:
- minimise the time customers might otherwise go without water,
- operate the network more efficiently,
- reduce the volume of water lost,
- improve resilience.
eVader automatically builds a database of detected events and alarms from the existing measurement points, providing a rich data source that informs asset performance and health.
Although originally developed for flow in water networks, eVader has been tested on pressure data, and can be used on any time series data that has seasonal patterns. This should make the system suitable for alternative uses in water networks and applications in wastewater networks.
Created by water industry experts for water industry experts
For further information contact us on 01454 320091 or e-mail us at firstname.lastname@example.org
eVader has been created by Artesia Consulting.
Artesia Consulting provides technical services in water resources planning, leakage management, demand forecasting, water conservation, metering, smart metering, data analysis, mathematic modelling and statistics.
For more information about Artesia please visit: www.artesia-consulting.co.uk