Post on 15-Apr-2017
AirBox: a participatory ecosystem for PM2.5 monitoring
Ling-JyhChen,AcademiaSinicacclljj@iis.sinica.edu.tw
ASEAN Forum for Software Defined System on Disaster Mitigation and Smart Cities Sept. 5, 2016
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What are we going to cover in this talk?
1. Why is PM2.5 important?
2. How did we build the system?
3. What is the current status?
4. What is the next step?
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What are we going to cover in this talk?
1. Why is PM2.5 important?
2. How did we build the system?
3. What is the current status?
4. What is the next step?
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Fine Particulate Matter (PM2.5)
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The Professional Solution
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• 76 multi-function stations (TW)• huge and extremely expensive• 10+ meters above the ground• well-mixed atmosphere
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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But, the question in our mind is just so simple that…
What’s the air quality here and now?
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What are we going to cover in this talk?
1. Why is PM2.5 important?
2. How did we build the system?
3. What is the current status?
4. What is the next step?
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
We started the “participatory sensing" project in 2013
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low-cost sensors recruiting volunteers
big data and spatio-temporal analysis
MAPS
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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2013
2014
2015
MAPS
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Then, we realized that…
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MAPS
cheap but inaccurate.. friends and students..
The data is small, sparse, and nothing we can analyze
low-cost sensors recruiting volunteers
big data and spatio-temporal analysis
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
After MAPS met LASS (2015/9)
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MAPS
I don’t think we can overcome the scalability issue
Why are we always reinventing the wheels?
I really want to build a “participatory sensing” system
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
What is LASS?
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Then, the journey starts
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Announcement for the 1st TW field try
2015/10/17
2015/11/29-2015/12/12LASS 1st TW field try
LASS 1st gathering2015/12/20
Supported by G0V2016/2/9
Demo in a south-eastern Asia environmental research conference
2016/2/29
AirBox Taipei2016/3/22
2016/7/30Prof. Shinji (JPN)
2016/4Prof. Lim (SIN)
AirBox New Taipei
2016/8/19
AirBox Kaohsiung2016/7/26
CENTRA kickoff2016/3/30
Maker Faire Taipei2016/5/7,8
GCTC2016/6/13,14
LASS conference2016/7/23
AirBox Tainan2016/8/30
CENTRA Webinar2016/8/22
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The journey is speeding up• from 1 to 100 to 1,000 devices
• from 10km to 1km to 100m density
• from Taiwan to Asia, to the world
• involving academia, community, industry, and government
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It’s not just a system by someone or some people. It’s an ecosystem by MANY parties of same goals.
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The ecosystem in a nutshell
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The core spirit: open hardware/software/data
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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The basis: lots of dirty works and experiments
compare toTSI AM510
compare toGRIMM Model 1.109
consistency test
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0.2
0.4
0.6
0.8
1
0 5 10 15 20 25 30 35 40
CD
F
∆PM 2.5 (µg/m3)
G3Sharp-D
0
0.2
0.4
0.6
0.8
1
0 5 10 15 20 25 30 35 40
CD
F
∆PM 1/2.5/10 (µg/m3)
PM1PM2.5PM10
The ecosystem in a nutshell
The core spirit: open hardware/software/data
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The ecosystem in a nutshell
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The pattern: from academia to community to industry
academia: focus on core issues
community: rapid POC
industry: reliable production
The basis: lots of dirty works and experiments
The core spirit: open hardware/software/data
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The ecosystem in a nutshell
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The pattern: from academia to community to industry
The basis: lots of dirty works and experiments
The core spirit: open hardware/software/data
The lesson: TPE deployment
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
The ecosystem in a nutshell
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The wish: from TW to the world
The pattern: from academia to community to industry
The basis: lots of dirty works and experiments
The core spirit: open hardware/software/data
The lesson: TPE deployment
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What are we going to cover in this talk?
1. Why is PM2.5 important?
2. How did we build the system?
3. What is the current status?
4. What is the next step?
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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The devices
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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Device Dashboard
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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Open Data ServiceA. the latest samples of LASS devices
http://nrl.iis.sinica.edu.tw/LASS/last-all-lass.jsonB. the latest samples of EPA stations
http://nrl.iis.sinica.edu.tw/LASS/last-all-epa.jsonC. the latest samples of AirBox devices
http://nrl.iis.sinica.edu.tw/LASS/last-all-airbox.jsonD. the latest samples of ProbeCube devices
http://nrl.iis.sinica.edu.tw/LASS/last-all-probecube.jsonE. the latest samples of Webduino devices
http://nrl.iis.sinica.edu.tw/LASS/last-all-webduino.jsonF. the latest sample of one particular device
http://nrl.iis.sinica.edu.tw/LASS/last.php?device_id=XXXG. the last 1,000 samples of one particular device
http://nrl.iis.sinica.edu.tw/LASS/history.php?device_id=XXXH. the samples of one particular device on one particular date
http://nrl.iis.sinica.edu.tw/LASS/history-date.php?device_id=XXX&date=2016-08-22I. the latest sample of the nearest device
http://nrl.iis.sinica.edu.tw/LASS/nearest.php
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Open Data Format
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JSON (JavaScript Object Notation) format:
(C) (F) (G)
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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Voronoi Diagram
http://nrl.iis.sinica.edu.tw/LASS/GIS/voronoi/
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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Data Visualization by 3rd Party
http://airmap.g0v.asper.tw
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Brief Statistics• Daily active devices
• 500 AirBox, 50 LASS, 20 others
• Taiwan and 15 countries, including Canada, France, Germany, India, Indonesia, Japan, Korea, Malaysia, Netherlands, Philippines, Poland, Singapore, Saudi Arabia, United Arab Emirates, and USA
• Data Service
• about 2 hits/second and 3 GB/day
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Well, is this what we want?
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sophisticated dashboard?
smartphones everywhere?
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Nice-to-have or Must-have?
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The Eisenhower Matrix
Urgent Not urgent
Important MUST SHOULD
Not important COULD WOULD(Nice-to-Have)
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Let’s think about it deeper…
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Can we enable something that never could be possible without LASS/AirBox?
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Example 1: Emission Source Tracking
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Something happened on 2015/12/20(UTC time)
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Example 2: Periodic Emission Source
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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Example 3: Anomaly Detection
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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Example 4: Environment Education
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What are we going to cover in this talk?
1. Why is PM2.5 important?
2. How did we build the system?
3. What is the current status?
4. What is the next step?
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Next step: device-wise
• More compact and energy-saving
• Support LoRa and other air quality sensors
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MAPS 5.0 LASS4U AirBox X.0
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Next step: data-wise
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• Support international standards
• e.g., OGC SensorThings API, FIWARE
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Next step: system-wise
• From single-server to distributed architecture
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Many issues remaining
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Correlation with traffic and
stationary emission sourceLASS/AirBox
device ranking
Smog forecast
Finer-grained PM2.5
dispersion model
Post-deployment sensor calibration
On-demand response
Government policymaking
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Plenty of Opportunities
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
AirBox is an Open Ecosystem
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Become the first node in your city
Promote LASS/AirBox in your city
Work together on data analysis
Contribute your crazy ideas and work together on that
Make your city smarter based on this system
Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Advertisements• AirBox/LASS tutorial on 9am tomorrow
• given by Dr. Lim Hock Beng
• 13 AirBox (free) for volunteers
• LASS International Deployment Plan
• We plan to expand our deployment to 120+ countries by 2017/7
• Please follow us on Facebook
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Summary of the talk• We present the AirBox ecosystem for
PM2.5 monitoring.
• The core spirit of the ecosystem is “openness” for HW, SW, data, and mind.
• The journey is ongoing and speeding up; and we look forward to your participation.
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
Acknowledgement• Government: TW EPA, TPE, KH, New
TPE, Tainan, MOST, …
• Academia: AS-IIS, AS-RCEC, SUTD, …
• Industry: Edimax, Realtek, …
• Community: LASS, G0V, CENTRA, CECEA, …
• Hard-working bees: my research teams, students, interns, and many friends
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Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)
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資 訊 科 學 研 究 所
地址：臺北市南港區研究院路二段128號 中央研究院 資訊科學研究所郵件： cclljj@iis.sinica.edu.tw網址： http://www.iis.sinica.edu.tw/~cclljj/
陳 伶 志
Institute of Information Science
Associate Research Fellow
128, Section 2, Academia RoadInstitute of Information ScienceAcademia Sinica, NankangTaipei 11529, Taiwan
副 研 究 員
電話：(02)2788-3799 ext. 1702傳真：(02)2782-4814統編：04142327
Tel : +886-2-27883799 ext. 1702Fax: +886-2-27824814E-mail: cclljj@iis.sinica.edu.twhttp://www.iis.sinica.edu.tw/~cclljj/
博士 Ph.D.Ling-Jyh Chen