Environmental Monitoring With a Raspberry Pi Daniel Chen
Environmental Monitoring With a Raspberry Pi
Daniel Chen
Environmental Science - Expectation
http://www.worldwidelearn.com/hqedu/img/quidget/dtsp/math-science/1.jpg
Environmental Science - Reality
http://www.jeditemplearchives.com/galleries/2013/Review_HanSoloHothRescueBlueSWS/Review_HanSoloHothRescueBlueSWS_stillC.jpg
Field work is labor intensive
Field work is expensive
Field work is sparse
Solution - The Internet of Things [IoT]What is it?
A way to interface hardware with the Internet
What does that mean?
Connects “things” (i.e. sensors, machines, and other devices) to the Internet for remote control or monitoring
How does it impact the Environmental Field?
Remote data collection and monitoring, reduced labor costs
Use Case - BackgroundSoil Vapor Extraction System Using Activated Carbon
●Remediation system actively extracts VOCs such as BTEX from soil gas using granular activated carbon units (GAC)
●Scrubbed airstream is pushed to atmosphere●Depleted carbon does not filter volatiles well, so weekly site visits
are needed to check GAC units for “breakthrough” (depletion)
Use Case - Background
http://www.precisionenvironmentalny.com/temp/soil-vapor-extraction.html
Use Case - IdeaRemote Monitoring System
●Place remote monitor system at entry and exit points of GAC units to determine efficiency
●Monitor system periodically records sensor data to an online database, showing live data feed
●Field staff would need to visit site only when GAC units begin to exhibit breakthrough
Use Case - Idea
Use Case - Early PrototypeArduino Uno, GPRS Shield, SD Card Shield
Use Case - Current VersionRaspberry Pi, Arduino Nano
Use Case - Current VersionSpecs & Components
● Raspberry Pi B● WiFi/Ethernet Connectivity● Arduino Nano● MQ135 electrochemical gas sensor● Remote access & control with Weaved, Platform.IO, and Google Drive
Cost breakdown● $15 Electrochemical Gas Sensor● $15 Arduino● $100 Raspberry Pi & parts● $0 Google Drive
Use Case - Test Data
Use Case - ResultBenefits
● Cheap (Cost in parts < $200)● Projected Savings of $20,000/yr● Live Readings● Remote Access
Future Improvements● Expand to other applications● Improved database system● Mesh sensor network● Mobile platform
Thanks for listening!Daniel Chen
Email: [email protected]: quickbrownfox319LinkedIn: goo.gl/uB2fUK