Photos
Some examples of monitors we've designed and built:
Real-Time Water Quality Monitor for Everglades
Problem: Client wanted temperature and salinity data transmitted in real-time to his office from points in the Everglades; location was frequented by vandals.
Solution: RDI built a monitor in a stainless enclosure and client mounted the solar panel out of reach.
Technologies:
- Hach water quality sensor
- GPRS cellular data modem
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Water Quality Monitor for Mine Pit
Problem: Client needed to neutralize contaminated water in an abandoned open pit mine before it escaped into a famous nearby recreational river.
Solution: RDI built 2 custom buoys to measure water quality in the pit and feed that data in realtime to a SCADA system which then injected the appropriate amount of neutralizer into the pit.
Technologies:
- Hydrolab water quality sensor
- Spread spectrum radio
- Current loop interface to SCADA
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Turbidity Monitor for Drinking Water Reservoir
Problem: Client needed to add huge water intakes at the shore of a fresh water reservoir but had to keep the cloudy water resulting from the excavation confined to a certain area.
Solution: RDI built 3 monitoring buoys that alarmed if turbidity exceeded certain levels at their locations. The alarms consisted of telephone messages automatically delivered to the excavator and his supervisers.
Technologies:
- Hydrolab water quality sensor
- Spread spectrum radio
- ModBus
- Alarm autodialer (telephone)
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Weather and Water Quality for Beach
Problem: Client wanted to test a mathematical model for predicting e. coli outbreaks at a popular public beach.
Solution: RDI's solution reports water quality and weather data in realtime.
Technologies:
- Hydrolab water quality sensor
- Spread spectrum radio
- Weather sensors
- GSM cellular modem
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Everglades Salinity Monitor
Problem: Client wanted to monitor salinity changes in the Everglades due to precipitation, fresh water flows, human activity.
Solution: RDI's custom monitor included the following technologies:
- YSI multiprobe
- GOES satellite telemetry
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