iot sensor sensibility - hull digital - c4di - feb 2016
TRANSCRIPT
IoT – Sensor SensibilityHull Digital – 11th February 2016
Glynn Bird, Developer Advocate, IBM
@glynn_bird
Introduction
@glynn_bird [email protected]
Glynn BirdDeveloper AdvocateIBM Cloudant
http://www.glynnbird.com
IoT = Internet of Things
Internet of Things Installed Base Will Grow to 26 Billion Units By 2020
Gartner 2013http://www.gartner.com/newsroom/id/2636073
Investment
http://iot-analytics.com/top-20-iot-companies-q2-2015/
Applications
http://www.theglobeandmail.com/report-on-business/rob-magazine/the-future-is-smart/article24586994/
Is this IoT?
Gas Meter
http://www.theguardian.com/money/2013/dec/29/why-cant-submit-meter-readings-npower-website
Energy Monitor
http://www.britishgas.co.uk/content/dam/british-gas/documents/Electricity-monitor.pdf
Nest
https://nest.com/uk/thermostat/meet-nest-thermostat/
Hue
http://www2.meethue.com/en-gb/what-is-hue/the-system/
Smart TVs
http://www.samsung.com/uk/consumer/tv-audio-video/televisions/suhd-nano-crystal-tvs/UE88JS9500TXXU
Defining IoTsensor(s)/actuator(s)internet connectiona means of consuming the data(optional) a means of feedback(optional) composability
Power consumption
MQTT
What is MQTT?• Message Queue Telemetry Transport• design for small code footprint and
minimum bandwidth• invented by IBM in 1999• pubsub protocol
Publish/Subscribe
MQTTPubSub Broker
Publisher
Publisher
Publisher
/glynn/temperature/room1
/glynn/temperature/room2
/glynn/humidity
/glynn/temperature/*Subscriber
MQTT brokers• http://mosquitto.org/ • https://opensensors.io/• http://www-03.ibm.com/software/products/e
n/internet-of-things-foundation
MQTT Demo
Feedback loop
MQTTPubSub Broker
Publisher
Subscriber
/glynn/temperature/room1
/glynn/feedback/*
/glynn/temperature/*Subscriber
/glynn/feedback/heat-onPublisher
Node-RED● Node.js Web App● Visual programming● Combine device data and
web services● Free
Node-RED Demo
Alternative to MQTT• Offline-first storage• Sync to cloud when possible• Ideal of partially connected sensors e.g.
transportation, health care, agriculture, logistics.
Write to CouchDB
DS18B20
sensorid=`find /sys/bus/w1/devices/* -type l | grep -o '[0-9]*-.*$' | head -n 1`filename="/sys/bus/w1/devices/$sensorid/w1_slave"T=`tail -n 1 "$filename" | grep -o "[0-9]*$"`t=${T:0:2}.${T:2:3}unix=`date "+%s"`d=`date "+%Y-%m-%d %H:%M:%S %Z"`json="{ \"ts\": $unix, \"date\": \"$d\", \"temperature\": $t, \"sensor_id\": \"$sensorid\" }"curl -X POST -H "Content-Type: application/json" -d "$json" "http://localhost:5984/logger/"
Sync• Replicate to
Cloudant
• Scale by adding more sensors
• Data collection can be offline
• Sync when connected
IBM Cloudant
Cloudant
Indexed JSON
Storage
Geo-Load Balancing
App Layer / Browser / Mobile App
Physical Storage @ IBM SoftLayer, Rackspace, Microsoft Azure, AWS
Cloudant JSON API
JSON CRUD
Multi- Master
Replication
Device Sync
Lucene Search
2D, 3D Geospatial
Incremental MapReduce Monitoring Security
IO
Control
REST (HTTPS)
www.glynnbird.com• My home page
• Cloudant database of articles
• Replicated to PouchDB
• Appcache for offline first
http://www.glynnbird.com/
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Volt• Password vault in a Chrome
extension
• Data stored in encrypted in PouchDB
• Optional back to CouchDB/Cloudant
https://github.com/glynnbird/volt
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IoT Hardware
Smartphone
720p displayGPSWifiOrientationSpeakerMicrophoneCamera
£100 - £800
ARM mbed IoT Starter Kit
orientationpressurehumiditytemperaturejoystickLCD screenbuzzer
£95
ARM mbed demo
Raspberry Pi 2
http://www.cnet.com/products/raspberry-pi-model-b-plus/
• audio out• GPIO• I2C• HDMI• USB x 4
£40
Raspberry Pi Sense Hat• orientation• pressure• humidity• temperature• joystick• LED array
£30
TI SensorTag• orientation• pressure• humidity• temperature• magnet• microphone• buzzer
£22
Raspberry Pi Zero
https://cdn.shopify.com/s/files/1/0176/3274/products/101912_3_1024x1024.jpg
• GPIO• HDMI• USB x 1
£4.20
Summary• IoT is receiving lots of investment• It's inexpensive to get started• No soldering required!• Send data to a broker via MQTT• Or, buffer data locally and replicate with
CouchDB & Cloudant
Glynn BirdDeveloper Advocate, Cloud Data [email protected]@glynn_bird @IBMCloudant github.com/glynnbirdwww.glynnbird.com