airbox: a participatory ecosystem for pm2.5 monitoring

AirBox: a participatory ecosystem for PM2.5 monitoring

Ling-JyhChen,AcademiaSinicacclljj@iis.sinica.edu.tw

2

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?

3

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)

4

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Fine Particulate Matter (PM2.5)

5

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

The Professional Solution

6

• 76 multi-function stations• huge and extremely expensive• 10+ meters above the ground• well-mixed atmosphere

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

7

But, the question in our mind is just so simple that…

What’s the air quality here and now?

8

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 start the “participatory sensing" project in 2013

9

low-cost sensors recruiting volunteers

big data and spatio-temporal analysis

MAPS

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

10

2013

2014

2015

MAPS

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Then, we realized that…

11

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)

12

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?

13

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Then, the journey starts

14

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 Taipei launched2016/3/22 AirBox New Taipei

launched

2016/8/19

AirBox Kaohsiung launched2016/7/26

CENTRA kickoff2016/3/30

Maker Faire Taipei2016/5/7,8

GCTC2016/6/13,14

LASS conference2016/7/23

2016/7/30Prof. Shinji (JPN)

2016/4Prof. Lim (SIN)

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

15

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

16

The core spirit: open hardware/software/data

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

17

The basis: lots of dirty works and experiments

compare toTSI AM510

compare toGRIMM Model 1.109

consistency test

0

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

18

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

19

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

20

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

21

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)

22

The devices

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

23

Device Dashboard

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

24

Data Comparison

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

25

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

26

JSON (JavaScript Object Notation) format:

(C) (F) (G)

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

27

Voronoi Diagram

http://nrl.iis.sinica.edu.tw/LASS/GIS/voronoi/

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

28

Data Visualization by 3rd Party

http://airmap.g0v.asper.tw

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Statistics of the devices

29

Period: 2015/11/1 - 2016/6/6

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Statistics of the services

30

Period: 2016/2/1 - 2016/8/1

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Well, is this what we want?

31

sophisticated dashboard?

smartphones everywhere?

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Let’s think about it deeper…

32

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

33

Something happened on 2015/12/20(UTC time)

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Example 2: Periodic Emission Source

34

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

35

Example 3: Abnormal Detection

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

36

Example 4: Environment Education

37

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)

Many issues remaining

38

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

39

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

MAPSmore cities coming soon

AirBox is an Open Ecosystem

40

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

We look forward to collaboration

41

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• ASEAN IVO meeting on 2016/9/5,6

• LJ will give the keynote

• Dr. Lim Hock Beng will give the tutorial

• 15 AirBox (free) for volunteers

• LASS International Deployment Plan

• We plan to expand our deployment to 120+ countries by 2017/7

• Please follow us on Facebook42

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.

• More details (& hands-on) will be given in ASEAN IVO/PRAGMA; and feel free to follow us :)

43

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

Acknowledgement• Government: TW EPA, TPE, KH, New

TPE, 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

44

Dr. Ling-Jyh Chen (cclljj@iis.sinica.edu.tw)

45

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