Venez découvrir notre projet de smart Studio où on a transformé notre environnement de travail en un environnement de travail connecté grâce à l'IoT !

1. BreizhCamp 2015 #BzhCmp
#IoT
BreizhCamp 2015 #BzhCmp
On a connecté le studio !
Qian JIN - @bonbonking
Sameh BEN FREDJ - @SamehBenF

2. Speakers
Sameh Ben Fredj
IoT Consultant & Data passionate
sbenfredj@xebia.fr
@SamehBenF
Qian Jin
Android Developer & Pythonista
qjin@xebia.fr
@bonbonking

3. Xebia Studio

4. Xebia Studio

5. Ground Floor
Xebia Studio
1st Floor
Mezzanine

6. Xebia Studio
XL Room
Lannister
Room
Stark
Room
Targaryen
Room
Meeting
Room
Toilet
TV
Xbox
Hallway & Leisure Space
Pinball
Machine

7. Yes! A pinball machine!

8. A Day in Studio

9. A Day in Studio
! Temperature varies
! Surge of noise level
! Meeting room (a.k.a lunch room) occupied
! Lights/TV left on
! Coffee capsule shortage
! Mobile device gone missing

10. What about connecting
the Studio?

11. IoT: What is it?

12. IoT: How big?

13. IoT: How much?
Source : EMC, IDC, 2013

14. IoT: Why Should I care?

15. IoT@Work

16. IoT@Work: Why ?
! Smart Office
○ Energy management
○ Activity tracking
○ Consumption tracking
○ Space management
! Smart Employee
○ Data sharing
○ Health monitoring
○ Time management

17. IoT@Work: How ?

18. Get Hands Dirty

19. Tech Stack
! Electronics: TI LaunchPad CC3200 +
Energia + Grove sensors
! Communication: MQTT clients +
CloudMQTT
! Frontend: Bower + Gulp + Github Pages +
DataViz libraries
! Backend
○ Node.js + Heroku
○ Elasticsearch + Bonsai.io

20. MQTT
Broker
(Cloud-
MQTT)
Architecture Overview
CC3200
Sensors
(Meeting room)
Data
ElasticSearch
(Bonsai Cluster)
Backend
REST Service
(Heroku Instance)
FrontEnd
Web Dashboard
(Github Pages)
Publish
Subscribe
Deliver
Store
Data
Search &
Aggregation
HTTP
Request
s
CC3200
Sensors
(Mezzanine)
Publish

21. Electronics

22. Hardware
Nano Computer Micro Controller

23. Hardware
! TI LaunchPad CC3200 + Platform Energia

24. Sensors
! Grove Sensors from Seeed Studio
○ Temperature & Humidity sensor
○ Motion sensor
○ Sound sensor
! Others
○ FC-51 Infra Red Distance Sensor
○ Light sensor

25. Sensors
Grove Temperature
& Humidity Sensor
Grove Motion
Sensor
Grove Sound
Sensor

26. Sensors

27. Example: data lecture
#include <WiFi.h>
#include <PubSubClient.h>
#include <DHT.h>
// PIN POSITIONS
#define TEMP_HUMI_PIN 24
#define SOUND_SENSOR 6
#define LIGHT_SENSOR 2
#define ROOM_ID 1
DHT dht(TEMP_HUMI_PIN, DHT22);
WiFiClient wifiClient;
PubSubClient client(server, 16301, callback, wifiClient);
char temp_buffer[256];
char humidity_buffer[256];
void setup()
{
// Setting up ...
dht.begin();
}
void loop() { }

28. Example: data lecture
void loop()
{
// read values from sensors & pubish to mqtt
_temperature = dht.readTemperature();
_humidity = dht.readHumidity();
sprintf(temp_buffer, "{"value": %d,"room_id": %d}", _temperature, ROOM_ID);
sprintf(humidity_buffer, "{"value": %d,"room_id": %d}", _humidity, ROOM_ID);
if (client.publish("temp", temp_buffer)
&& client.publish("humidity", humidity_buffer){
log("Data published succeeded!");
} else {
log("Data publish failed");
}
delay(5000);
}
void log() {}

29. Hack the
Coffee Machine

30. Hack the coffee machine

31. Hack the coffee machine
FC-51 Infra Red
Distance
Sensor

32. Hack the coffee machine

33. Communication
Protocol

34. Why MQTT?
MQTT vs XMPP vs AMQP

35. MQTT
! Invented in 1999 by
IBM and Eurotech
! Version 3.1.1 is now an
OASIS Standard (Since
November 2014)

36. Backend

37. Backend
! Node.js app on Heroku
○ Connect to CloudMQTT via Websocket
○ REST service to frontend
○ Index/Query Elasticsearch data
! Data in ElasticSearch
○ JSON over HTTP
○ Data aggregation made easy

38. Elasticsearch Aggregation
"aggregations" : {
"<aggregation_name>" : {
"<aggregation_type>" : {
<aggregation_body>
}
[,"aggregations" : { [<sub_aggregation>]+ } ]?
}
[,"<aggregation_name_2>" : { ... } ]*
}

39. Frontend

40. Frontend
! Data Visualization
! Data Pulling: Auto Refresh every 5min
! Deployed on Github pages
! Tools we love

41. Dashboard

42. Dashboard live: http://bit.ly/1e1sCER

43. Troubles

44. Troubles
! Newbies in electronics
! Unstable Wi-Fi condition
! Lack of monitoring mechanism
! Curiosity visitors
! Time! Time! Time!

45. Coworkers’
Reaction

46. Before

47. After

48. 1st tweet

49. Next Steps

50. Physical Indications
! Meeting room
occupation sign
! Button obsession
○ Check-in button
○ Croissant button
! Hack the LED screen

51. Connected X
! Connected Chairs
! Connected Fridge
! Connected storage for mobile device
○ RFID + Monitor Screen
○ Inventory Made Easy

52. iBeacons
! Presence tracking
! Information pushing

53. Data mining
! Data analysis and correlation
! Prediction

54. Acknowledgment

55. Acknowledgment
! Qian Jin (hardware + back)
! Sameh Ben Fredj (hardware)
! Benjamin Lacroix (front)
! Thomas Guerin (back)
! Julien Buret (hardware)
! Xebians who actively give suggestions ;)

56. Working session

57. Thank you!
Q&A