クラウドを利用した電力可視化システムの構築
Upcoming SlideShare
Loading in...5
×

Like this? Share it with your network

Share

クラウドを利用した電力可視化システムの構築

  • 2,235 views
Uploaded on

2011年11月情報処理学会OS研究会発表スライド

2011年11月情報処理学会OS研究会発表スライド

More in: Technology , Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
2,235
On Slideshare
2,218
From Embeds
17
Number of Embeds
4

Actions

Shares
Downloads
18
Comments
0
Likes
3

Embeds 17

http://paper.li 11
http://us-w1.rockmelt.com 3
http://a0.twimg.com 2
http://twitter.com 1

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. 2011 11 29 OS/EMB
  • 2. • •  –  – REST API•  – SC11•  2
  • 3. •  –  –  Google data center in the Dalles, Oregon •  3 11 Fukushima Daiichi Nuclear Power Plant 3
  • 4. •  •  •  4
  • 5. •  •  ISP 5
  • 6. • •  –  – REST API•  – SC11•  6
  • 7. 2 … … 3 Update power usage Google App Engine using REST w/ JSON Retrieve data using REST w/ JSON Alert 4 Viewer 1 7
  • 8. •  •  4 1 • Clamp-on current sensor (max: 4) RJ-45 port Signal processing board (dsPIC30F3013) 8
  • 9. / • •  32 –  UTP•  20 GAE push –  NAT•  32 GAE 9
  • 10. / GAE RJ-45 ports x 32 CPU T-SH7706LSR-  SH3 Linux-  Buildroot 2011.05-  pmon.py Xilinx Spartan-3E 10
  • 11. Google App Engine •  Web PaaS –  Java Python Go•  –  5 –  2•  – •  –  11
  • 12. •  –  1 PowerMinite •  update –  1 PowerHour •  GAE –  1 PowerDay •  1 cron•  Google App Engine for Java MVC Slim3 12
  • 13. Small start Go big Google App Engine Datastore 4 32 = 128 •  • GAE ... 13
  • 14. less than 90% of the upper limit less than 95% of the upper limit more than 95% of the upper limit Offline HTML5 14
  • 15. REST API path method description /update POST /latest GET 1 /latest,N GET N /summary.s/YYYYmmDDHHMMSS,N GET N /summary.m/YYYYmmDDHHMM,N GET N /summary.h/YYYYmmDDHH,N GET N /summary.d/YYYYmmDD,N GET N /query.s/LOC/YYYYmmDDHHMMSS,N GET LOC N/query.m/LOC/YYYYmmDDHHMM,N GET /unit-config/UNIT_ID GET /unit-config/UNIT_ID PUT 15
  • 16. 20 GAE xxx.appspot.com/update GAE POST JSON { "id": ”UNIT_ID" "time": "1319837460” /* elapsed seconds from the UNIX epoch time */ "power": { /* data for the last 20 seconds per measurement point */ "sensor0.0": [VAL0, VAL1, VAL2, VA3, ..., VAL19], "sensor0.1": [VAL0, VAL1, VAL2, VA3, ..., VAL19], "sensor1.0": [VAL0, VAL1, VAL2, VA3, ..., VAL19], .... }} 16
  • 17. 1 GAE xxx.appspot.com/latest,N GAE GET JSON { "time": “1319837460” /* epoch time */ "timeStr": “201110290631” /* human readabletime in JST */ "power": { "LOCATION0": [1234] "LOCATION1": [1234] "LOCATION2": [1234] "LOCATION3": [1234] "LOCATION4": [1234] ... } Viewer application } 17
  • 18. • •  –  – REST API•  – SC11•  18
  • 19. SC11 AIST (JP) 11 14 17 7 82 290 1 2 1 … 3 … 2 Google App Engine Update power usage using REST w/ JSON Retrieve data using REST w/ JSON NICT booth #4717(US) 2 3 Viewer 1 Viewer 2 3 AIST booth #917(US) 19
  • 20. 2011 8 GAE 20
  • 21. NICT NICT x2 Tiled display wall server Juniper’s routers GAE 21
  • 22. SC11 NICT 22
  • 23. / •  GAE –  4 GAE –  •  0.75 / 5KB/ •  500MB – •  –  30 –  23
  • 24. / •  config –  SC11 –  config •  •  config 24
  • 25. • •  –  – REST API•  – SC11•  25
  • 26. •  3 –  290 –  SC11• •  –  –  26
  • 27. Q&A 27
  • 28. GAE 0.75 HTTP requests/second 5000 bytes received/second 28