SENSOR NETWORKS JAVA

Transcription

1 SENSOR NETWORKS JAVA RASPBERRY EMBEDDEDPI

2 ABOUTME. CANOOENGINEERING Gerrit Grunwald Developer Leader of JUG Münster JavaFX & IoT community Co-Lead Java Champion, JavaOne RockStar

3 JAVA ONE 2013

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7 MONITORING

8 IDEAS

9 Measure multiple locations Store data for analysis Access it from everywhere Use Java where possible Visualize the data on Pi

10 Create mobile clients Display current weather condition Measure local environmental data Use only embedded devices

11 QUESTIONS???

12 How to do the measurement? Where to store the data? Which technologies to use? What is affordable? Which hardware to use?

13 TODO

14 1 MONITOR 9 ROOMS 2 STORE DATA 3 VISUALIZE ON RASPBERRY PI 4 OTHER CLIENTS

15 MONITOR 9 ROOMS

16 BUT HOW

17 SENSOR NETWORK

18 SENSOR NETWORK Built of sensor nodes Star or mesh topology Pass data to coordinator Sensor nodes running on batteries

19 POSSIBLE SENSOR NODES

20 RASPBERRY PI

21 RASPBERRY PI Cheaper Support Flexible Connectivity Power supply Size Overkill limited I/O's

22 ARDUINO YUN

23 ARDUINO YUN Cheaper Support Power supply Oversized Flexible I/O's No Java Connectivity

24 ARDUINO + XBEE

25 ARDUINO + XBEE Cheap Support Power supply Oversized Flexible I/O's No Java Connectivity

26 XBEE

27 XBEE Cheap No Java Support Flexible

28 XBEE

29 XBEE 2.4 GHz at 2mW Indoor range up to 40m Outdoor range up to 120m Volt C operat. temp. Point to point, Star and Mesh support Programmable via AT cmd ZigBee standard

30 XBEE VCC DOUT DIN DO8 RST PWM0 PWM1 RSV DTR GND AD0 AD1 AD2 AD3 RTS AD5 VREF ON CTS AD4

31 XBEE SETUP VCC DOUT DIN DO8 RST PWM0 PWM1 RSV DTR GND TMP 36 AD0 AD1 AD2 AD3 RTS AD5 VREF ON CTS AD4

32 XBEE SETUP Wake up sleeping 5min Measure AD3 Transmit AD3 value and supply voltage Go to sleep

33 SENSOR NODE

34 SENSOR NODE 5 cm

35 SENSOR NODE 35

36 POSSIBLE TOPOLOGIES

37 SENSOR NODE MESH COORDINATOR SENSOR + ROUTER NODE LARGE-RANGE NETWORKS

38 SENSOR NODE STAR COORDINATOR SHORT-RANGE NETWORKS

39 SENSOR NODE STAR COORDINATOR

40 COORDINATOR Slice of Pi

41 SENSOR NODE STAR COORDINATOR RASPBERRY PI

42 RASPBERRY PI SETUP Debian Wheezy Linux JDK 8 Collect all current Xbee data via Java xbee-api Store every 5 min to database Populate live Xbee data via MQTT

43 MONITOR 9 ROOMS Xbee based Sensor Nodes Raspberry Pi as Coordinator Use Java 8 on the Raspberry Pi

44 1 MONITOR 9 ROOMS 2 STORE DATA 3 VISUALIZE ON RASPBERRY PI 4 OTHER CLIENTS

45 STORE DATA

46 Which database? Which hardware? Where to store the data?

47 WHICH DATABASE?

48 MONGO DB

49 MONGODB Flexible Developer friendly Free Java driver available ARM port available

50 WHICH HARDWARE?

51 CUBIEBOARD2 DualCore ARM A7 1GHz Mali-400 MP GPU 1 GB RAM 1 Micro SD 1 SATA 2.0 Ethernet I 2 C, SPI, LVDS

52 CUBIEBOARD2 SETUP Debian Wheezy Linux JDK 8 Act as mongodb server Collect Xbee data of last 7 days every 5 minutes Allow communication over MQTT

53 STORE DATA Use mongodb Use CubieBoard2 as server Use Java 8 on the CubieBoard2

54 1 MONITOR 9 ROOMS 2 STORE DATA 3 VISUALIZE ON RASPBERRY PI 4 OTHER CLIENTS

55 VISUALIZE ON RASPBERRY PI

56 VISUALIZE ON PI Show current weather condition Show environmental values Show live measured data Show history of last 7 days Show sensor voltage history Show daily temperature distribution

57 1. APPROACH

58 GOING "BIG"

59 10" TOUCH LCD

60 THE INTERFACE

61 WEATHER

62 ENVIRONMENT

63 LIVE XBEE DATA

64 7 DAY HISTORY

65 7 DAY HISTORY

66 7 DAY RADAR

67 THE "BIG" APPROACH JavaFX 8 based Simple touchable interface Get data via MQTT subscription Optimized for low cpu performance

68 2. APPROACH

69 GOING "SMALL"

70 2.8" TOUCH LCD

71 THE INTERFACE

72 WEATHER

73 WEATHER

74 ENVIRONMENT

75 ENVIRONMENT

76 ENVIRONMENT

77 LIVE XBEE DATA

78 7 DAY HISTORY TOO SMALL

79 THE "SMALL" APPROACH JavaFX 8 based Simple touchable interface Get data via MQTT subscription Portable Optimized for low cpu performance

80 1 MONITOR 9 ROOMS 2 STORE DATA 3 VISUALIZE ON RASPBERRY PI 4 OTHER CLIENTS

81 OTHER CLIENTS

82 POSSIBLE JAVAFX PLATFORMS Desktop (Windows, OS X, Linux) Cubox-i (i.mx6) ipad (ios) Nexus 7 (Android) SmartWatch (Android)

83 DESKTOP

84 DESKTOP

85 DESKTOP

86 Cubox-i (i.mx6) 5 cm

87 Cubox-i (i.mx6)

88 Cubox-i (i.mx6)

89 Cubox-i (i.mx6)

90 Cubox-i (i.mx6)

91 Cubox-i (i.mx6)

92 Cubox-i (i.mx6)

93 Cubox-i (i.mx6)

94 1 MONITOR 9 ROOMS 2 STORE DATA 3 VISUALIZE ON RASPBERRY PI 4 OTHER CLIENTS

95 FINAL SETUP

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98 SensorNetwork

99 SensorNetwork Database Server

100 SensorNetwork Database Server MQTT Broker

101 SensorNetwork Database Server MQTT Broker Raspberry Pi Visualization

102 SensorNetwork Database Server MQTT Broker Raspberry Pi Visualization Other clients

103 SensorNetwork Database Server MQTT Broker Raspberry Pi Visualization Other clients

104 CONCLUSION

105 One can create a "cheap" sensor network based on Xbee's One could safe money by using embedded technology One could run nearly all of the systems on standard Java

106 DEMO ios & Android

107 KEEP CODING