Wireless Sensor Netzwerke für den industriellen Einsatz

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1 Wireless Sensor Netzwerke für den industriellen Einsatz Prof. Andreas Rüst Leiter Forschungsgruppe Internet-of-Things Zürcher Hochschule für angewandte Wissenschaften Institute of Embedded Systems Winterthur,

2 Industrie 4.0 Skills Industrie 4.0 Your business case is the driver More than just collecting data storage and processing data analytics: create insights data warehouses, aggregation, filtering, event detection model building, discovery, visualization prediction connect things and capture data microcontrollers, wireless, low-power, sensors automation value-creating services, business processes take action: Implement new value-creating processes 2

3 Connecting Things Internet-of-Things as an enabler Enable networks with a huge number of low-cost nodes Used to be Internet connecting personal computers and smartphones Now Expanding the Internet to everyday items (things) 3

4 Connecting Things Internet of Things The network of physical objects that contain embedded technology to communicate and sense or interact with their internal states or the external environment. Gartner, Inc. energy sensors network physical process microcontroller wireless actuators source of icons: colourbox 4

5 Wireless Standards Application specific trade-offs in the zoo of wireless standards Cost Energy Security Data Throughput Range Topology Interoperability Regulations Environment Reliability 5

6 Low-Power Design Dynamic power analysis Example Bluetooth Low Energy Power in Milliwatt over time Advertising GATT Discovery Data (notification) 6

7 Project Examples ZHAW Institute of Embedded Systems battery less Digital Signage Mesh Network Data Logger with ble ble Beacon Vibration Harvesting Building Technology (Thread) Indoor Localization Leak Detection 7

8 Wireless sensor networks (WSN) Distributed network of autonomous sensors (nodes) Nodes monitor physical or environmental conditions Coordinated collection of data All nodes forward their data to one (or several) central gateway(s) Gateway is connected to "the Internet" 8

9 Extending "the Internet" to Smart Things Extension of IPv6 to resource-constrained devices Internet 6LoWPAN (IPv6 over Low power Wireless Personal Area Networks) Header compression Adapt packet size Stateless auto configuration IPv6 extension IPv6 6LoWPAN Smart things Can act without human intervention Individually identifiable and addressable Service discovery from "the Internet" Which services does the thing offer? resource-constrained devices smart things Security with constrained resources Challenge to implement well-known security concepts source of icons: colourbox 9

10 Conclusions Research Topics Microcontrollers Low-energy + Autarkic Wireless Energy Harvesting Topologies e.g. Mesh Wake-up Techniques Microcontrollers Scalable Networks Localization Power Management Protocols Security Low-power 6LoWPAN 10

11 Back-up Autarkic Systems / Energy Harvesting Intelligent Heating Valve Vibration Sensor Condition Monitoring Wireless Body Area Network Autarkic heating valve using thermoelektric generator (TEG) with booster for ultra-lowvoltage from 16 mv Autarkic sensor for vibrations (> 100 Hz), based on piezoelectric harvester with SSHI* circuit Condition monitoring for industrial drives, harvesting energy from vibrations (< 20 Hz) Ultra-Low-Power Wireless Body Area Network for energy harvesting with reliable communication for control applications Thermoelectric (TEG) Piezoelectric Vibration Induktive Vibration Piezoelectric Force source: Prof. Juan Gruber, ZHAW Institute of Embedded Systems * Synchronized Switched Harvesting on Inductor 11