Internet Of Things

MEYves Goeleven

• Co-founder Azug• Windows Azure MVP• Specialised in web dev & messaging• Dev on NServiceBus• Founder of MessageHandler.net

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Agenda

Session outlineProposal

• Introduction to the internet of things• What’s all the hype about & why now• Architecture• Loads of demo’s

#IoT

1809Samuel Thomas von Sömmering

I bet you have

one of these to?

System of systems

CineCare

Exhibition theater @ kinepolis

Wearables

CareFlux

The internet of thingsDefinition

• Physical Things with embedded processing power• Communicating with each other and the internet• Augmented by software and services

The hype

212bn

Why now?

Convergence of technologies

Converging technologiesEverything seems to fall into place

• Smaller & cheaper hardware: Sensors, microcontrollers, ...• Open source hardware: Arduino, netduino, gadgeteer, raspberry PI, ...• Ubiquitous connectivity: Wifi, LTE, BLE, Zigbee, NFC, ...• Open protocols: AMQP, MQTT, XMPP, HTTP/REST, CoAP …• Cloud: Massive & cheap compute power & storage as a service

Open source hardware

Let me show you!

Connectivity

ConnectivityMany options

Wifi LTE Zigbee BLE NFC ANT Nike+ IrDA

PPC 116 mA 1200 mA 40 mA 12.5 mA 50 mA 17 mA 12.3 mA 10.2 mA

Throughput 6 Mbps 300 Mbps 100 kbps 305 kbps 424 kbps 20 kbps 272 bps 200 kbps

Range 150 m 30km 100 m 50 m 5 cm 10 m 10 m 10 cm

Latency 1.5 ms 35ms 20 ms 2.5 ms 1 s 0 1 s 25 ms

Encryption WPA2 SNOW-UEA2-UIA2

WEP AES-CCM - SCE ? -

http://www.csr.com/sites/default/files/white-papers/comparisons_between_low_power_wireless_technologies.pdf

Open Protocols

Open protocolsReal-time, typically publish-subscribe, protocols

Target Purpose Real Time Topology Transport

DDS Device -> Device Data Distribution 10µs -> 10ms Bus UDP

MQTT Device -> Server Telemetry 10ms -> 1s Hub & Spoke TCP

XMPP Server -> Device Presence / addressing 10ms -> 1s Targeted TCP

AMQP Server -> Server Messaging > 1s Topics TCP

HTTP API Server -> Server RESTFul services 10ms -> 1s Request - Reply TCP

CoAP Device -> Server RESTFul services 10ms -> 1s Request - Reply UDP

SignalR* Server -> Server Messaging 10ms -> 1s Hub & Spoke TCP

Go!Bus* Device -> Device Device Virtualization 10µs -> 10ms Bus SPI

http://electronicdesign.com/embedded/understanding-protocols-behind-internet-things

Architecture

Challenges

ConnectivityPick your poison

Wifi LTE Zigbee BLE NFC ANT Nike+ IrDA

PPC 116 mA 1200 mA 40 mA 12.5 mA 50 mA 17 mA 12.3 mA 10.2 mA

Throughput 6 Mbps 300 Mbps 100 kbps 305 kbps 424 kbps 20 kbps 272 bps 200 kbps

Range 150 m 30km 100 m 50 m 5 cm 10 m 10 m 10 cm

Latency 1.5 ms 35ms 20 ms 2.5 ms 1 s 0 1 s 25 ms

Encryption WPA2 SNOW-UEA2-UIA2

WEP AES-CCM - SCE ? -

ConnectivityEven if you have the power

IPV6 AdoptionSlow adoption rate

Historically evolved ‘islands’

Explosion of dataEver heard of Brontobytes?

All of these challengesPoint to the same solution architecture

Federated Bus

Federated Message Bus

D2D D2DD2S/S2D

S2SS2S

D2S/S2D

D2S

MessageHandlerIntroducing

Channels & handlers

End to end demo

Messaging

What’s a message?Data on the move

• Data: Sensors measurements, ...• Headers: Context, time sent, origin, destination, conversation, ...• Format: Xml, json, binary, ....• In transit: Traveling from origin to known (or unknown) destination, transient ...

Messaging PatternsCommand

Show me the code

Messaging PatternsEvents

Show me the code

Event stream processing

Reactive ExtensionsDetermine what is interesting

• Linq to events• Linq: Standing queries, always running• IObservable: Event streams, data flow through as it happens ...• Windowing: Provides time-based context

Reactive ExtensionsTime based

http://blogs.msdn.com/b/rafaelf/archive/2013/01/17/how-to-express-common-windowing-patterns-using-rx.aspx

Reactive ExtensionsCombining streams

Show me the code

Takeaways

TakeawaysProposal

• Evolution of the internet of things• The stars may align to make hype reality• Challenges

• Connectivity (Power consumption VS security)• Addressing (IPV6)• Data Volume• Physical Boundaries & propriatary implementations

• Solution: Federated Bus• Different transport• Different protocol• Same patterns (Command, Event, Query)• Multiple levels (Device, Local Network, Cloud)• Gateway takes care of translation, filtering & security

• MH: Message/Event processing as a service• Standing Query: Rx• Action

Now go build epic things!

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