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Wireless Distributed Sensor Networks Verhaert

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An overview of Verhaert research in the field of wireless distributed sensors presented on Innovation Day '07

Text of Wireless Distributed Sensor Networks Verhaert

  • 1. MASTERS IN INNOVATION Wireless distributed sensor networksVERHAERTINNOVATIONDAY OCTOBER 12th, 2007 www.mastersininnovation.comWIRELESS DISTRIBUTEDSENSOR NETWORKS Koenraad [email protected] confidence This presentation contains ideas and information which are proprietary of VERHAERT, Masters in Innovation*, it is given in confidence. You are authorized to open and view the electronic copy of this document and to print a single copy. Otherwise, the material may not in whole or in part be copied, stored electronically or communicated to third parties without prior agreement of VERHAERT, Masters in Innovation*.* VERHAERT, Masters in Innovation is a registered trade name of Verhaert Consultancies N.V.www.mastersininnovation.com CONFIDENTIAL 12.10.2007 Slide 1

2. MASTERS IN INNOVATION Wireless distributed sensor networksDistributed Sensor Networks, enabling Technology in Development www.mastersininnovation.comDistributed sensors networks have become a highly active research areabecause of their potential of providing diverse services to a broad range ofapplications, not only on science and engineering, but equally importantlyon issues related to critical infrastructure protection and security, healthcare, the environment, energy, food safety, and the potential impact on thequality of all areas of life. VERHAERT will demonstrate a phased approachtowards a distributed sensor set-up for local body area networks and theirpotential in security applications. Furthermore, other potential applicationswill be discussed while the current status of technology is being outlined. CONFIDENTIAL12.10.2007 Slide 2 3. MASTERS IN INNOVATION Wireless distributed sensor networks Content Introduction www.mastersininnovation.com Swans: a Verhaert inertial sensor network The applications Architecture and building blocks How to select or define a wireless sensor network Low power as a critical design driver Conclusion CONFIDENTIAL 12.10.2007 Slide 3 4. MASTERS IN INNOVATION Wireless distributed sensor networks Whats in a name ? www.mastersininnovation.com Wireless = wireless data transmission autonomous: on board power source (e.g. battery) often: on board intelligence Sensor = sensing physical parameters, e.g. temperature Network = added value of multiple nodes, due to cooperation,e.g. Swans skeleton, inter vehicle communication e.g. Swans: a body area network (BAN) of wireless inertial sensors for motion capturing CONFIDENTIAL 12.10.2007 Slide 4 5. MASTERS IN INNOVATION Wireless distributed sensor networks Market trends for wireless sensor networks www.mastersininnovation.com CONFIDENTIAL12.10.2007 Slide 5 6. MASTERS IN INNOVATION Wireless distributed sensor networksEuropean research on wireless sensor networks Wireless sensor networks www.mastersininnovation.com = a very active research area Swans: Silicon platforms for Wireless Advanced Networks of Sensors Stella: stretchable electronics E-Cubes: stacking technology Witness: security wireless sensor network MyHeart: medical smart wireless sensors Mimosa: Microsystems platform for MObile Services and Applications Vibes: vibration energy scavenging Eyes: self organizing networks Applications need mature technology CONFIDENTIAL 12.10.2007 Slide 6 7. MASTERS IN INNOVATION Wireless distributed sensor networks Swans: a European cooperation www.mastersininnovation.com SWANS = Silicon platforms for Wireless Advanced Networks of Sensors a Medea+ European project Partners: silicon design companies (Atmel, STM, NXP, Ansem) research institutes (IMEC, CEA-Leti) application oriented companies (Verhaert, LMS, EADS, France Telecom) Verhaerts role & interest: development of a wireless body area network for motion tracking sensors for health and fitness applications CONFIDENTIAL12.10.2007 Slide 7 8. MASTERS IN INNOVATION Wireless distributed sensor networks The Verhaert inertial sensor body area network Inertial sensor (iTrack) www.mastersininnovation.com per limb, capturing IMU sensor platformpersonal 3D orientation hub Wireless data linkcommunication from limb hub - station communication to personal hub sensor-hub Virtual skeleton reconstruction in personal hub Wireless communication of skeleton motion base from BAN hubstation to base station CONFIDENTIAL12.10.2007Slide 8 9. MASTERS IN INNOVATION Wireless distributed sensor networks Wireless technology for RT motion capturingSkeleton & Virtual model Motion capture suit on wireframe with texture and Virtual modelreal world bodyrepresentation www.mastersininnovation.comrepresentationwith skin surface of virtual modelof sensorsSwans CONFIDENTIAL12.10.2007 Slide 9 10. MASTERS IN INNOVATION Wireless distributed sensor networks A sensor network for pedestrian navigation www.mastersininnovation.com Motion capturing Step detection Step distance & direction CONFIDENTIAL12.10.2007Slide 10 11. MASTERS IN INNOVATION Wireless distributed sensor networksFrom a good sensor node to a sensor networkFull body Single sensor Single sensor Sensor network wired dev. kit (COTS)node (custom)demonstrator www.mastersininnovation.com+ CONFIDENTIAL12.10.2007Slide 11 12. MASTERS IN INNOVATION Wireless distributed sensor networks Other Verhaert sensor network applications Healthcare: revalidation www.mastersininnovation.com activity monitor fall detection ergonomics Security track & trace Sport: training technique improvement activity monitoring Animation motion data capturing game controller (cf. Wii) virtual reality controller CONFIDENTIAL12.10.2007Slide 12 13. MASTERS IN INNOVATION Wireless distributed sensor networksTypical healthcare & fitness applications & trends www.mastersininnovation.com Verhaert motion capturing Elderly: fall detection, activitymonitoring, track & trace=> low power / long range EMG, EEG, ECG on flex pcb SiP: 3D BGA stackingfull system on 14 x 14 x 12 mmlow power 15 mW @ 1 Mbps / 50 m geo-fencing / track & trace Man overboard trackingsimilar for location based services => on board intelligence importantCONFIDENTIAL12.10.2007Slide 13 14. MASTERS IN INNOVATION Wireless distributed sensor networks Typical industrial & environmental applications Building automation: domotics, metering www.mastersininnovation.com Industrial automation, e.g. process monitoring, object tracking Asset management: track & trace Automotive, e.g.traffic monitoring, traffic control, LBS => long lifetime (10+ year) Security Military, e.g. battlefield surveillance Environmental monitoring, e.g. agriculture, habitat, seismic, marine => deployment in large quantities and over large areas CONFIDENTIAL 12.10.2007Slide 14 15. MASTERS IN INNOVATION Wireless distributed sensor networks Added value of wireless sensor networks Deployment cost Wired = high infrastructure cost ~ number of sensors & application area [m] www.mastersininnovation.com => large application areas or high number of sensors Flexibility sensor location can be changed easily, network is easily expandable (10 => 10 000 sensors) Mobility => moving objects (e.g. automotive, people) Track & trace for moving objects Network = interaction between nodes Constraints Low power Lack of standardisation CONFIDENTIAL12.10.2007Slide 15 16. MASTERS IN INNOVATION Wireless distributed sensor networksSensor node hardware architecture Motion node hardware www.mastersininnovation.comCase: motion node Antenna COTS radioUART MEMS sensors Generic ADCCSPIPower circuitBattery CONFIDENTIAL 12.10.2007 Slide 16 17. MASTERS IN INNOVATION Wireless distributed sensor networks Software architecture and building blocksSwans building Descriptionblocks OSI network layer model www.mastersininnovation.comBase station / Data logging &pers. hubvisualisationapplicationEmbedded Inertial: strap-algorithms down, Kalman OS Scheduler Data acquisition Sensor interface Wireless ProprietarycommunicationData transferProprietary Base station / Proprietarypers. hubcommunication CONFIDENTIAL12.10.2007Slide 17 18. MASTERS IN INNOVATION Wireless distributed sensor networks Parameters for a sensor network configurationParameter Target Typical valueSwans full motion www.mastersininnovation.com Lifetime / Autonomy highdays to years2 h sufficient Number of sensors high 10 10 00016 Data update intervallong interval: days to sec100 HzBandwidthlow1 100 kbits/s250 kbits/sRangemedium m to km10 m Sensor cost low1 5000 3000 acceptable Quality of Service Deployment Communication medium Mobility Sensor homogeneity Infrastructure & topology Certification Coverage Standardisation / interoperability Connectivity CONFIDENTIAL12.10.2007 Slide 18 19. MASTERS IN INNOVATION Wireless distributed sensor networks What about a standard ? Established standard www.mastersininnovation.com WiMax Power Non mature standard WifiProprietary gsm6lowpan UWBBTnodeTarget areaBluetoothWirelessHartGreenpeakWavenisWisaZigbee /UbiwaveWibree IMECNumber of sensorsCONFIDENTIAL12.10.2007Slide 19 20. MASTERS IN INNOVATION Wireless distributed sensor networks Low power is essential for low cost deployment www.mastersininnovation.com Dynamic power management:duty cycling, external event trigger (e.g. radio, piezo-sensor for stepcounter), shutting down / switching off functions like sensing, radio,processor, deep sleep mode, Dynamic Scaling:Voltage or frequency reduction, adaptive depending on workload,asynchronous logic, Data reduction: intelligent algorithms reduce data transfer volumee.g. compression, only sending relevant events, on board interpretation, Ultra low power building blocks: processor architecture, memory,transceiver, sensors, ADC, CONFIDENTIAL12.10.2007Slide 20 21. MASTERS IN INNOVATION Wireless distributed sensor networks Power sources: overview ClassicsWireless Sheet-like w

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