SMART Sea Level Sensors
ROLE
Engineering Intern - Environmental Sensor Development (2021)
PROBLEM
The Smart Sea Level Sensors project operates a mesh network of water-level sensors in Chatham county, Georgia, which is used by climate researchers and disaster relief managers. To provide more comprehensive environmental data, rainfall sensors needed to be incorporated into the network.
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SOLUTION
Add high-grade rainfall sensors using the existing LoRaWAN IoT network hardware, and ensure that the system can be battery powered, running for at least 6 months without replacement. This greatly improves the ability of county management to monitor and predict heavy storms and floods.
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Initially conducted market analysis for optimal rain gauge sensor given price, power requirements, accuracy, and measurement resolution.
Resulted in using the TB4 tipping-bucket rain gauge for all deployed units.
Developed algorithm to enable low power operation and records rainfall on triggered interrupt event.
Gained skills in C/C++ code to interface with the GaTech Environmental Sensor ESP-32 development board. Used LoRaWAN small packet communiction to relay data to an IoT server.
Rain gauges are currently in deployment and utilized for research and disaster management.
Currently, 12 rain gauges are sending continuous rainfall measurements to the SMART Sea Level Sensors dashboard, with more always being added to network.
Video developed by Georgia Tech Global Change Program on my work...