Home Networks in a World of Embedded Web Services

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Home Networks in a World of Embedded Web Services

• David E. Culler
• dculler_at_archrock.com
• culler_at_cs.berkeley.edu

KES 2006 10-19-2006
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(No Transcript)
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The Web Integrates the Worlds Information
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Most Real World Information goes down the
drain
Clocks and Calendars
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Real-World Wireless Web integrating real-world
information
Embedded Sensing Processing Communication
Web Integration Technologies
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Example
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Outline

• Introducing - Real-World Wireless Web
• Enabling Technology
• Embedded Web Services
• Awareness monitoring and metering
• Prognostics - instrumentation
• Care observing interactions
• Conclusions

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Enabling Technology
IEEE 802.15.4
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Enabling Technology
Physical World
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Emergence of Open Platforms
Physical World
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Emergence of Open Systems
Digital World
WSN mote platform
Sensors
Wireless
Physical World
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Snapshot of an International Community

• 346,000 downloads from tinyos.net
• plus sourceforge, crossbow, moteiv,
  www.tinyos.or.kr,
• Open TinyOS Alliance

http//www.tinyos.net
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Wireless Embedded Systems
TinyOS 2.0
WSN mote platform
Communication Centric Resource-Constrained Event-d
riven Execution
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Wireless Embedded Networks
Applications and Services
Over-the-air Programming
Blocks, Logs, Files
Streaming drivers
Scheduling, Management
Digital World
Link
ADC, Sensor I/F
Physical World
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Multi-Hop Mesh Routing
0
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Confluence of Technology
Embedded Networking
Tiny Operating System
WSN
CMOS Radios
Microcontroller SOCs
Integrated Sensors
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Wireless Sensor Networks

• Network of tiny footprint computers
• Optimized for long life on low power
• Equipped to sense physical data
• Networked using low-power radio
• Function
• Sense any measurable parameter
• Light, motion, chemicals, proximity, biometrics
• Form network and communicate
• Automatic meshing and routing over the air
• Apply user-defined business logic
• Sampling, summarizing, reporting events
• Form
• Mote (Processor, Radio, Storage) Sensors
• Embedded Operating System and Networking
• Gateways towards Enterprise IT systems

Internet or Enterprise
Gateway
Gateway
Wireless Sensor Nodes
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Enabling Technology Web Services

• The ultimate interoperability
• unify within and between Information Systems
• Service Oriented Architecture
• Widely adopted standards
• Backed by OASIS and W3C
• Open-source reference implementations, e.g.,
  Apache
• SOAP WSDL ( UDDI)
• Or XML-RPC over HTTP (REST)

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Service Oriented Architecture
Service Registry
Service Provider
Service Requestor

• Service Description gt interface implementation
• Operations supported, input/output objects
• Bindings to network and data encoding schemes
• Network address where service can be invoked
• Enough that client can generate code to access
  the service well

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Embedded Web Services
lt get temp set sample_rate set alarm gt
www.weather.com
Web Services
ltvaluegt sourcelibrary time1253
temp26.7 lt\valuegt
ltvaluegt sourcelibrary time1231
temp25.1 lt\valuegt
XML information
Wireless Packets
802.15.4
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A new WSN world
client
tier1
server
AquaLogic
tier2
Perl
Python
C
Embedded Services
NetWeaver
Excel
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Real World Webs
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Why are WSNs so Important?
Increase Comfort
High-Confidence Transport
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Awareness Monitoring and Metering

• Monitoring Spaces
• Env. Monitoring, Conservation biology, ...
• Precision agriculture, greenhouses,
• Home and building comfort efficiency, HVAC,
• alarms, security, surveillance, EPA, OSHA,

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Prognostics - instrumentation

• Monitoring Spaces
• Env. Monitoring, Conservation biology, ...
• Precision agriculture, greenhouses,
• Home and building comfort efficiency, HVAC,
• alarms, security, surveillance, EPA, OSHA,
• Monitoring Things
• condition-based maintenance
• automated meter reading
• Energy efficiency, cold chain
• disaster management
• Civil infrastructure

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Interactions and Care

• Monitoring Spaces
• Env. Monitoring, Conservation biology, ...
• Precision agriculture, greenhouses,
• Home and building comfort efficiency, HVAC,
• alarms, security, surveillance, EPA, OSHA,
• Monitoring Things
• condition-based maintenance
• automated meter reading
• Energy efficiency, cold chain
• disaster management
• Civil infrastructure
• Interactions of Space and Things
• manufacturing, asset tracking, fleet franchise
• Cold-chain, shipping integrity, hazmat
• Assistance - home/elder care
• Action and control
• Optimizing processes
• Automation

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Proximity, Tracking, Compliance
Industrial Asset mgmt CBM Process control Energy
mgmt environmental
Medical Agriculture HLS
Home Lighting HVAC access
Shipping QoS Vibration threshold Temp/humidity
threshold

• Current Conditions
• In Motion, No Magnetic Fields, 67
• Humidity Range 30-35
• Temp. Range 55 - 78

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Care awareness of life dynamics and health
Web Integration Technologies
Embedded Sensing Processing Communication
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How will WSNs and IP come together?
XML / RPC / REST / SOAP / OSGI
?
HTTP / FTP / SNMP
TCP / UDP
IP
802.15.4, CC,
802.11
Ethernet
Sonet
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Full IP stack throughout
XML / RPC / REST / SOAP / OSGI
HTTP / FTP / SNMP
TCP / UDP
IP
802.15.4, CC,
802.11
Ethernet
Sonet
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Edge Network Approach
XML / RPC / REST / SOAP / OSGI
HTTP / FTP / SNMP
TCP / UDP
IP
802.15.4, CC,
802.11
Ethernet
Sonet
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SensorNets need the Wisdom of the Internet
Architecture

• Design for change!
• Network protocols must work over a wide variety
  of links
• Links will evolve
• Network protocols must work for a variety of
  applications
• Applications will evolve
• Provide only simple primitives
• Dont confuse the networking standard with a
  programming methodology
• Dont try to lock-in your advantage in the spec
• Open process
• Rough consensus AND running code

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Arch Rock Technology

• Connecting the physical world to the information
  enterprise
• Applications on Real-World Web Services
• Java, .net, php,
• IP-based Service Oriented Architecture
• App, mgmt, conversion, persistence, data
• WiFi, GPRS
• Embedded Application Services
• Extensible attributes events
• Embedded Network Services
• IEEE 802.15.4-based
• Cross-platform industrial-quality WSN operating
  system
• TinyOS 2.0
• Broad platform and sensor choice

Client
tier1
Server
tier2
Physical World
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Arch Rock Technology

• Connecting the physical world to the information
  enterprise
• Solid Foundation
• Novel information in familiar forms

Client
tier1
Server
tier2
Physical World
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Arch Rock Primer PackFoundation ? Enablement ?
Knowledge

• What is it?
• A complete, web-enabled wireless sensor network
  application platform that includes
• Gateway Server appliance that projects the Sensor
  Network to the IP world via Web Services
• Sensor Nodes with hardened TinyOS 2 embedded
  system, mesh networking and services
• Web-based management console for commissioning,
  system diagnostics and data management
• Sensor extensibility with no system programming
  via the Expansion Ports and preinstalled sensor
  drivers
• A comprehensive set of Web Services for
  industry-standard integrated development
  environments
• IP-based sensor node management, addressing,
  naming and browsing

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The Next Tier

• Today we can connect essentially everybody
• Tomorrow we will be able to connect and observe
  essentially everything of value
• physical spaces, objects, and their interactions
• physical information, not just keystrokes

CompPeople
11,000,000
Mainframe
Mini
11,000
Workstation
PC
11
Laptop
PDA
Phone
10001
Motes
years
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Thanks