ESM30 Application Case – Hong Kong Reservoir Water Quality Monitoring

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Summary:

Plover Cove Reservoir is the biggest freshwater lake in Hong Kong, supply drinking water to Hong Kong citizen. Monitor water quality is one of the most important job for government. It is a big reservoir and cost much labor and time in such routine work. So the Water Supplies Department decides to introduce unmanned vehicle for automatic water sampling and online mobile water quality monitoring.

Client Name:

Hong Kong Water Supplies Department Water Supplies Department (WSD) of the Hong Kong Special Administrative Region Government. (URL: http://www.wsd.gov.hk/en/home/index.html)

Date:

December, 2016

Equipment:

- ESM30 autonomous boat
- Shore station
- YSI EXO2 Multi-parameters probe

Location:

Hong Kong Plover Cove Reservoir

esm30 case

System Integration:

Oceanalpha provide autonomous water sampling and monitoring boat ESM30, Water supplies department offer existing YSI EXO2 probe, whole system integration was developed by Oceanalpha to make sure successful water quality data acquisition.

Deployment:

The boat can be easily loaded to a mini Van with a vehicle and Base Station PC.
The YSI EXO2 was mounted in the bottom of the boat and well fixed.
The YSI EXO2 was mounted in the bottom of the boat and well fixed.
Back view of ESM30 AUTONOMOUS SAMPLING BOAT
Back view of ESM30 AUTONOMOUS SAMPLING BOAT

Boat launch and Base Station PC operation at shore, the boat will follow the preset trajectory under GNSS navigation to collect water samples and acquire online water quality data such as temperature, PH, Dissolved Oxygen, Conductivity and Turbidity etc.(Depend on the configuration of sensors)

Water quality data can be observed in PC and after mission completed, sampling report and water quality contour map will be output.

Conclusion

ESM30 boat is an autonomous platform designed for water quality sampling and monitoring in lake, reservoir and rivers, it can be integrated with different multi parameters probes for water quality monitoring, especially bring great benefit to big area lake and reservoir.