Web of Systems –Vision, Challenges, & PracticesDan YuSiemens Corporation
Siemens Corporate Technology
Version 1.0May 2016
Unrestricted © Siemens AG 2016
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Outline
Vision• What is WoS and why it’s the future of industrial IoTChallenges• Challenges from legacy systemsPractices• Our solution and examples from lab and real projects
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Vision vs. Reality
Prep-programmed machines confined in fenced area
RealityVision
Machines and workers jointly work on assigned tasks
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How to Solve the “Human NOT in the Loop” Problem?
Human in the LoopCloud + IoT = Big Data
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How Can Machines Collaborate Autonomously?
Function•e.g. Cut
Meaning•e.g., Apple (fruit)
Language•e.g., XML
Protocols•e.g., WiFi / HTTP
Physical media•e.g. ,wireless
Function•e.g. Secretary
Meaning•e.g., Coke (beverage not drug)
Language•e.g., modern English
Protocols•e.g., alternatively
Physical media•e.g., voice
Man Machine
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Primer of Semantic Web
Machine A
I Peel Apple
Machine B
I Cut Apple
Apple
Size: diameter5-15cm
Weight: 30-100g
Centralsymmetric
Color: red /yellow / …
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Context Driven Interaction
Semantic Interacting Devices
– Task driven system interaction is possible– Semantic technologies are one cornerstone– Functional Profiles are key enablers– Industrial Standards are crucial
Interacting devicesDistributed interactingautonomous devicesnegotiate and coordinateprocesses
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Additional Ingredients for Autonomous System
Trust
Proof
Logic
Rules/Query
Ontology
RDF Model & Syntax
XML Query XML Schema
XML Namespaces
URI/IRI Unicode
Data
Algorithms
Web Service
OntologySmart System
Autonomous SystemSmart Systems + Web = Web of Systems
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Web of Systems – Complete Formula
Ubiquitouscommunication
Web of SystemsSmart networkeddevices
− Internet
− Web/2.0 technologies− Autonomous
− Interacting
− Local analytics
− App-enabled
Domain context
− Domain-specificrequirements
− Cross-domainintegration
− Semantics
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WoS combines web technologies with smart networked devices and domaincontext A device
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Huge Installation Base of Legacy Systems to be Converted
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Challenge: From Recording to Manifesting
All docs mainly for human consumption
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Challenge: Siloed Systems
• Separated tiers in different systems
• Dedicated and domain specific communication
• Heterogeneous andlow-level data representation
• Non-uniform access to devices and information
• Difficult cross domain integration
Diverse, specificcommunicationprotocols
Separated tiers
Building AutomationPlant Automation
Energy Automation
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Challenge: Data Acquisition
Legacy systems are not designed to share fielddata to external world
Is the physical interface accessible?
Does the field controller allow data tobe uploaded?
Is data encrypted?
What is the communication protocolto share the data?
…
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Challenge: Meaning of Data
Documentation may reside in different stakeholders
Archive of some documents may be lost
Source code may not be delivered to end user
Unit of the data “Speed”?
How are data sources related?
How is the system configured?
…
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Solution: Web of System Joiner Help Migrate Legacy Devices
Web ofSystems
WoS “Joiner”
Smartnetworked
devices
Smartnetworked
devicesWoS
backend
Modular runtimeto add/remove appsand firmware modules
Variety of physical interfaces(digital or analog IO, serial inter-faces, bus systems, etc.)
Sensor systems(on board and attached)to gather informationabout the context/environment of a device
Hosting of Apps(e.g., Web HMI,
data (pre-)processing,
contextualization)
Legacy device
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And More Challenges … to Bridge Physical and Cyber Objects
… C-P mapping Security Data sovereign Standardization …
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Examples
Web communication of busses and chargingboxes as standardized in ISO/IEC 15118Web access for all stakeholders to belongingparts of the system
– High performance charging interface for electricalbusses uses CCS charging interface for EVs
– 12 installations are in pilot operation (Hamburg,Stockholm, Goteborg, Montreal, …)
– Output power: 300 kW– Output current: 550A– Charging duration: 6 min/Bus
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ICE Water
“ICeWater”: optimized water network operations– Smart devices: Online monitoring of water infrastructure
supported by smart sensors and smart metering
– Interacting devices: Enables energy optimization, leakdetection/localization and asset/customer management
– Interacting devices: Decision support making use ofcontextualized smart data
– App-powered devices: Easy integration of new smart sensorsand Apps
– Cross domain integration: “Smartification” of legacy sensors
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Intelligent Secondary Substation
Web Technology in distributedmonitoring and control
–Cloud: Data center provides permanent bulk storage forplanning-related use cases and hosts cloudapplications
–iSSN: Smart Devices work with downloadableapplications. It controls transformer to keep voltagelevel in tolerable band
–Field devices: Small sensor nodes provide limitedstorage for temporary connection loss buffering andlocal aggregation operations
–Dashboard: Provides access to local data, monitoring ofconnected field devices, configuration of iSSN
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Smart Freight Wagon
GPS satellite
Intra-train ad hoc network
Condition andtransport monitoring
Device and applicationmanagement
Sensormodule (optional)
WoS box
“Smart Freight Wagon”– Smart devices: WoS box; Measures global position and
collects/analyzes data from sensor modules, communicatesto cloud, thereby making the wagon smarter
– Interacting devices: Intra-train ad hoc network 1; e.g. capable ofunderstanding and describing the whole train, including wagonsequence, thereby making the wagons interacting devices
– App-powered devices: WoS box to host applications such asfreight document app, wagon service information app, rail trackcondition monitoring app, thereby making wagon an app powered-device
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Example: Machine Tool Status Acquisition
Current (Ammeter)
Vibration(Accelerometer)
Loading / unloading(Photodetector)
Worker presence (IRsensor)
WoSGateway MES
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Status Analysis
WorkingArea
Unloading
Area
LoadingArea
Vibration
Loading
Unloading
Status
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Web of Systems – Summary
Summary– Web of Systems ̶ Smart networked systems for industries
and (critical) infrastructures
– Device centric and system aware approach supportingdigitalization and automation
– Applying proven and widely used Web/2.0 technologyand semantics within and across domains
– Sovereignty on value creation: The customer flexibly decideson data processing and automation as application anywhere
– Investment protection and migration of the installed base
Web of Systems
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Thanks
Dan YuWeb of SystemsCorporate ResearchSiemens Corporation USA
2087 Addison St.Berkeley, CA 94704
Internethttp://siemens.com/corporate-technologyhttp://usa.siemens.com/wot