2017/07/11 Talk in AI-SOCD Workshop

1. AirBox: a Participatory Ecosystem
for PM2.5 Monitoring
Ling-Jyh (L.J.) Chen, Academia Sinica
cclljj@iis.sinica.edu.tw

2. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
An ongoing story in Taiwan
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3. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Before (2015) Now (2017)
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76 2,000

4. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Finer-grained ever
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Smog from China on 2017/01/30
http://gph.is/2jKCLuM

5. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The journey starts from
a simple question:
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What’s the air quality
here and now?

6. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The strategy to make it
really happen…
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Enable
Empower
Engage

7. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
It was a LONG story …
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8. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
And it is still ongoing …
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• 2,500+
devices
• 29 countries

9. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The spirit of the system:
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10. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Hardware
• Low cost & off-the-shelf
=> Everyone can buy it!
• Open-sourced hardware
=> You can customize a board if needed!
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Arduino
Yun
Arduino
101
Intel Edison
RealTek
Ameba
MediaTek
LinkIt One
MediaTek
Smart 7688
Duo
Dimension
mm x mm
73x53 68x53 35x25 70x53 85x53 60x26
MPU/MCU MPU + MCU MCU MPU + MCU MCU MCU MPU + MCU
SD Card Y N Y N Y Y
WiFi Y N Y Y Y Y
BLE N Y Y N Y N
GPS N N N N Y N
Price $50 $30 $50 $20 $60 $15

11. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Source
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Codes
Instructions
3DP enclosure
PCB

12. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Data
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• The real time raw data and analytics results
are freely available
https://sites.google.com/site/pm25opendata/open-data

13. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Architecture
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14. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Community
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15. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Discussion
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Citizen
Science

16. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Ecosystem
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l Micro Air Pollution Sensing
l Participatory sensing
l Open big data / Analysis
l Device design manufacture
l Apps firmware development
l Cloud Facility
l Public Awareness
l Smart City
l Environment Policy
l Location Awareness Sensing System
l Experts and technology hackers
l Maker Community
l Environment education
l Maker education
l Micro Air Pollution Sensing
l Participatory sensing
l Open big data / Analysis
l Device design manufacture
l Apps firmware development
l Cloud Facility
l Public Awareness
l Smart City
l Environment Policy
l Location Awareness Sensing System
l Experts and technology hackers
l Maker Community
l Environment education
l Maker education
• International
collaboration
ASEAN IVO

17. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Devices
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LASS FT AirBox MAPS LASS4U 87Live
Platform MediaTek LinkIt
One
Realtek Ameba MediaTek LinkIt
Smart 7688 Duo
Realtek Ameba Realtek Ameba
T/H sensor DHT22 HTS221 BME280 SHT31 SHT31
PM sensor PMS3003 PMS5003 PMS5003 PMS3003 PMS3003
CO2 sensor - - - SenseAir S8 -
Air pressure sensor - - BME280 - -
Open source YES - YES - YES
Open data YES YES YES YES YES
Phone app - YES - YES YES
End user makers schools academia citizens makers/citizens
Dimension (cm) 10.2 x 6.5 x 4.8 14.8 x 11.2 x 4.5 12.4 x 8.4 x 5.4 15 x 10 x 5 12 x 7 x 4.2
Price (USD) 90 110 90 140 60

18. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Visualization
https://pm25.lass-net.org/GIS/voronoi/ https://pm25.lass-net.org/GIS/IDW/ https://pm25.lass-net.org/GIS/IDW/iso.html

19. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Animation
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https://pm25.lass-net.org/en/#animation

20. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Data Analytics
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21. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Making Sense of Things
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https://airmap.g0v.asper.tw

22. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 22
https://pm25.lass-net.org/

23. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Personalized Service
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24. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Interdisciplinary Collaboration
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25. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Lessons Learned
• Accuracy vs Precision
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consistency test
0
0.2
0.4
0.6
0.8
1
0 5 10 15 20 25 30 35 40
CDF
∆PM 1/2.5/10 (µg/m3)
PM1
PM2.5
PM10
GRIMM Model 1.109

26. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Lessons Learned
• Accuracy vs Precision
• Deployment is a tough issue
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27. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Lessons Learned
• Accuracy vs Precision
• Deployment is a tough issue
• Incentive and passion are the priority
27

28. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Lessons Learned
• Accuracy vs Precision
• Deployment is a tough issue
• Incentive and passion are the priority
• Interdisciplinary collaboration is a MUST
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29. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Lessons Learned
• Accuracy vs Precision
• Deployment is a tough issue
• Incentive and passion
• Interdisciplinary collaboration is a MUST
• OTA and security will be the next BIG thing
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30. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Lessons Learned
• Accuracy vs Precision
• Deployment is a tough issue
• Incentive and passion
• Interdisciplinary collaboration is a MUST
• OTA and security will be the next BIG thing
• Just do it!
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31. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Next step
• More deployment (10K nodes by 2020)
• Portable/wearable devices
• Considering other gas sensors
• Chatbot to interact with end users
• A.I. for finer-grained data forecast
• Moving from “sensing” to “action”
• And more
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32. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Take home messages
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• AirBox is a participatory ecosystem for
PM2.5 monitoring.
• The core spirit is: open hardware/source/data.
• Making sense of the data:
• visualization and analytics!
• must-have or nice-to-have?
• There are plenty of challenges opportunities,
and we look forward to collaborating with you!

33. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Acknowledgement
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• Government: TW EPA, TW MOST, …
• Academia: AS-IIS, AS-RCEC, SUTD,
NCHC, NCTU, NCKU, …
• Industry: Edimax, Realtek, …
• Community: LASS, G0V, CENTRA,
PRAGMA, CECEA, ASEAN IVO, …
• Hard-working bees: my research teams,
students, interns, and many friends

34. Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw) 34
PM2.5 Open Data Portal
https://pm25.lass-net.org/