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Versatile Sensor Node A Platform for the Sensor as a Service Concept

Versatile Sensor Node A Platform for the Sensor as a Service Concept. Miha Smolnikar, Institut “Jožef Stefan” Uroš Platiše, ISOtel. Outline. SensorLab Wireless Sensor Networks Versatile Sensor Node Vertical Integration Applications. SensorLab.

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Versatile Sensor Node A Platform for the Sensor as a Service Concept

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  1. Versatile Sensor NodeA Platform for the Sensor as a Service Concept Miha Smolnikar, Institut “Jožef Stefan” Uroš Platiše, ISOtel

  2. Outline • SensorLab • Wireless Sensor Networks • Versatile Sensor Node • Vertical Integration • Applications Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  3. SensorLab • Department of Communication Systems @ JSI Department of Knowledge Technologies @ JSIISOtel d.o.o. • Coordinated activities on the development of custom WSN solution started in May 2009 • Key words: Versatile Sensor Node, Vertical Integration, Sensor as a Service (IP connectivity, WEB access), Deliberate/Participatory Sensing, Semantics Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  4. Wireless Sensor Networks General characteristics and requirements: • adaptable (diverse application requirements) • periodical, external event triggered and/or on request measurements • asymetric & directional information flow (centralized, distributed, hybrid data aggregation and network control) • energy efficient (long lifetime, all layers) • scalable (huge number of nodes) • robust (long runtime) • secure (data confidentiality) Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  5. Current state in WSN • Research • Well developed field with many degrees of freedom • Complex, large-scale, resource constrained systems • Focus is on intra network communications • Development • Solutions are tailored to specific application requirements • Standard compliance (interoperability) • Focus is on communication between WSN and Internet, to facilitate IoT/WoT • Business • Slowly taking off (evolving standards, endless proprietary solutions multi-vendor interoperability) • Interference and congestion in ISM bands • Huge savings are promised (e.g. smart grids) Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  6. WSN Technologies • Traditionally: low complexity, low power, small size and weight, long life, autonomous, short range, low cost … • Standardised • IEEE 802.15.4 - Low Rate WPAN (PHY & MAC) • ZigBee, 6LoWPAN, WirelessHART, Dash7, Wavenis … • IEEE 802.15.1 – Bluetooth (BT 3.0 Low Energy Mode) • IEEE 802.11x – Wi-Fi • Other dedicated communication technologies (Ethernet, GPRS, …) in WSN concept – gateways • Proprietary • Z-Wave, ANT, MiWi, SimpliciTI, DigiMesh … Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  7. WSN Implementation • Node structure • System on Chip (SoC) • CPU + OEM Radio • Microcontroller + PHY/MAC Radio Sensor CPU Radio Actuator Memory Sensor CPU RF Serial Actuator Memory Protocol Stack ZigBee Sensor CPU PHY SPI Prot. Stack Peripherals Actuator Memory (MAC) IEEE 802.15.4 Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  8. Processing platforms ST ARM Cortex-M3 Comm. tech. ZigBee, 6LoWPAN,IEEE 802.15.4 Bluetooth Wi-Fi GSM/GPRS Ethernet Sensor Network Protocol (SNP) Satellite Versatile Sensor Node • Motion, presence, range (IR, ultrasonic) • Capacitive/inductive touch • Gyroscope • Compass • … • Actuators • Pulse Width Modulation(Light, Motor) • Switch, Relay • Servo • Alarm Sensors • Temperature • Humidity • Luminance • Color • Reflectance • Pressure/Force • Camera • Optical Detector • GPS • Sound • Accelerometer • Gas (O2, CO2, CO) • Hall effect Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  9. Versatile Sensor Node • Modular platform for WSN (VSN=VSC+VSR+VSA+VSP) • High processing power and low energy consumption • Sensor node & gateway (multi-tier / IP) capability • Battery, solar or external power supply • Re-configurable radio Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  10. Versatile Sensor Node • VSC • Analog and digital sensor/actuator interfaces • Possibility to use operating system (real-time, event-driven) • Multiple expansion options • Open C/C++ code libraries • Onboard memory • VSR • 300-900 MHz, 2.4 GHz radio interface (all ISM bands) • ZigBee, 6LoWPAN and other IEEE 802.15.4 based solutions • VSA • Bluetooth, Wi-Fi, Ethernet, GSM/GPRS • Sensors/actuators • PoE

  11. Vertical Integration Ontology: CSIRO, Ontosensor, W3C SSN (concrete sensor description) Representation language: OWL, CycL(for ontologies), SensorML(for local sensor description) Reasoning engine:Cyc, LarKC(resource constraints!) Semantic Sensor Network Ontologies Representation languages SemanticsApplications Sensor Networks Reasoning engines Darjeelingon Contiki (and TinyOS) Embedded web server (Ethernet module) Mate, Bombilla (Tiny OS) DAViM VM CallasVM NanoVM AmbiCompVM Contiki(event driven/real-time) (TinyOS(event driven)) CooCox (real-time) Squawk Open protocol stacks OS Run-time reprogramming VSCVSRVSAVSP Sensors Protocol stacks for ST ARM & TI CCxx Heterogeneous sensor network Libelium Arduino VSN TI Microchip Sun CogRad Crossbow Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  12. VSN in multi-tier WSN • Temperature and humidity monitoringfor environmental applications • ZigBee based local sensor networks • GSM/GPRS interconnection with control center • Joomla extension WEB interface • Coustomised data export (Chart, Table,GoogleMaps, XML, Database) • http://diploma.idealna.si/ (U:gost, P:gost) GPRS ZigBee GPRS Sensor node ZigBee Gateway node Internet Cellular networkbase station Control centre(web server + data base) Sensor node User

  13. Bluetooth equiped VSN • Bluetooth link between sensor node and smart phone • Video and voice capturing • Temperature, humidity, pressure, light monitoring • Java test application Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  14. VSN for IoT & WoT Internet of Things - IoT: world-wide network of heterogeneous smart objects (sensors, actuators, RFID, MEMS …) based on standard communication protocols Web of Things - WoT (also SensorWeb or The Physical Web): integrating embedded devices to the Web using standards like HTML, XML, RSS … Pachube • Web service that enables storing, sharing & discovering of real-time sensor, energy and environment data from objects, devices & buildings around the world. • Captures input data (from remote sensors) and serves output data (to remote actuators) • http://www.pachube.com/feeds/6894 sensors data PHY WEB actuators Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  15. VSN Application Areas Agriculture eHealth Smart infrastructures Advetising Smart House • Lighting Marketing • Electricity Industrial Processes Social Networks • Water Logistics • Gas Transportation Safety Military Security Emergency Wireless sensor networks & Small medium enterprises (WSN-SME): ProSense workshop, May 2010

  16. Thank you and welcome at the exhibition desk! miha.smolnikar@ijs.si uros.platise@isotel.eu

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