The Internet of (Less) Useless Things (Karl-Henrik Nilsson Technology Stream)

@KHnilsson Karl-Henrik.se

The Internet of (less) useless things

Karl-Henrik ”KH” Nilsson


The people around you.


Definition : an explanation of the meaning of a

word, phrase, etc. : a statement that defines a word, phrase, etc.


Users


WAF Wife approval factor


MIF Marriage interference factor


SAF Spouse acceptance factor


What you can get away with!


Why does this matter to you?


Your spouse can be the most interested and

motivated product owner you have ever met!


“A fridge is a stackable storage space”


Design and user experiences


Design it to be anonymous not flamboyant!


Honesty and respect


“You can have our wonderful report!”


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0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00

Power consumption over 24h


Respect the users, give them the tools to build actuall IoT


Be open and honest. Building a genuine IoT network will

require trust.


That would be like selling mobile phone and charging someone

to build apps for it..


Don’t give your customers the short end of the stick.


The hardware platform


Battery powered devices that does not suck!


Arduino Uno 45 mA / 9 volt 1200mAh

<1 day.

Arduino Pro Mini Unmodified

5mA / 9 volt 1200mAh 10 days.

Ardunio Pro Mini No Power LED, no Regulator

0.0045mA / 9 volt 1200 mAh.

>3,5 years.

Arduino


MQTT, AMQP, STOMP, HTTP!?


AMQP

MQTT

Stomp


HTTP


MQTT - Message queue Telemetry Transport

Created by IBM AND Eurotech. Lightweight, smallest packet size 2 bytes (header)

C# client library 30 kb. Reliable: QoS and patterns to avoid packet loss on client disconnection 4,5% less battery use than HTTP (Despite longer connection times)

Simple. TCP based. Asynchronous Pub/SUB Few verbs Payload Agnostic


AMQP – Advanced Message Queuing Protocol

Created by everyone and their mother! Very popular, used by NASA and BANKS to process billions of messages. 3 x the footprint of MQTT but still very lightweight. Reliable: QoS and patterns to avoid packet loss on client disconnection (Specifications on the other hand…)

Simple. TCP based. Asynchronous Pub/SUB Payload Agnostic


The smaller the protocol the less POWER WE NEED

RF, WIFI supports different protocols!

A small CPU (8 MHZ) IS Not ideals for a big protocol


Design with failure in mind


RF

WIFI ETH


RF

4G

ETH WIFI ETH


RF

4G ETH WIFI ETH

AWS Azure


Designed with failure in mind!


Out of sight, out of mind


People don’t see what they are accustomed too


People rarely look under stuff


Putting something inside a wall can be tempting.


The same problem set with the same solutions!


Field gateways


Offline support


Agile development


IoT Service (AMQP and HTTP)


MQTT - ADAPTER

HTTP - ADAPTER

QUEUE

(AMQP IOT HUB)

CONSUMERS

CONSUMERS

CONSUMERS


Administration is the devil!


MQTT - ADAPTER

HTTP - ADAPTER

QUEUE

(AMQP IOT HUB)

CONSUMERS

CONSUMERS

CONSUMERS


So...


Always design for waf - It will be the better system.


Keep it hidden but accessible


Select the device most suitable for the job


Design with failure in mind!


If it can’t be replaced it will be there forever!


Just as with most software systems the end goal is scalability and adaptability.


IoT is not just a product connected to the internet.


IoT is representing a physical object on the

internet.


The simplest of ideas can become great products


Karl-Henrik Nilsson


Thanks for listening

The Internet of (Less) Useless Things (Karl-Henrik Nilsson Technology Stream)

Technology

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