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Lost in Abstraction
Sebastian Janzen
Lost in Abstraction Sebastian Janzen Sebastian @sebbe128 innoQ - - PowerPoint PPT Presentation
Lost in Abstraction Sebastian Janzen Sebastian @sebbe128 innoQ - - PowerPoint PPT Presentation
Lost in Abstraction Sebastian Janzen Sebastian @sebbe128 innoQ https://www.innoq.com What is a Smart Home ? Smart Home is NOT a connected device is NOT a cloud service is NOT a single product A dwelling incorporating a
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innoQ
https://www.innoq.com
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What is a Smart Home?
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Smart Home
is NOT a connected device is NOT a cloud service is NOT a single product
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“A dwelling incorporating a communications network that connects the key electrical appliances and services, and allows them to be remotely controlled, monitored or accessed.”
2003 UK Department of Trade and Industry - http:/ /goo.gl/7PW8Gv
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It’s a system of things which support the
- ccupants use cases.
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Smart Home participants
User Device Sofuware
Interaction I n t e r a c t i
- n
A c c e s s
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The user’s expectations
Flexibility: Cover custom use cases Extensibility: Installation extension Sustainability: Long term benefjt Avoid vendor lock-in: Should be extensible
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Passive User Ambitioned User Expert
U U+ U++
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U U+ U++ UI Device
+ Best setup — Extensibility — Flexibility
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U U+ U++
UI Device
Cloud
+ Modifjcations to fjnal product — Privacy — Ofgline
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U U+ U++
UI UI UI
Eclipse SmartHome
Device Device Device Service UI
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Eclipse SmartHome (ESH)
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Eclipse SmartHome
> An open source Internet of Things framework > Java OSGi based Project > Eclipse Public License > Since 2014 > Base of openHAB > Requirements: Java >= 6 > Base of successful commercial Projects
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What you get
> Structure to handle IoT devices > Web-Interfaces, Apps, Examples > More than 100 already supported things > Documentation > Commercial support available > Large and active community
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What you do not get
> Hardware > A Java license
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OS JVM
OSGi Container Eclipse SmartHome (ESH)
- penHAB
Solution X Solution Y
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How to use this?
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Representation Binding Thing Channel Channel Channel Bridge Thing Item
Link
UI
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Representation Binding Thing Channel Channel Channel Bridge Thing Item
Link
Hue Lamp Color Temp. Brightness Color Hue Bridge ColorItem Status: ONLINE State: #FF0000
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Representation Binding Thing Channel Channel Channel Bridge Thing Item
Link
UI Item GroupItem
Link
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Binding Thing Channel Channel Channel Bridge Thing Thing
Id, Name, Description, Bridge, Confjguration, Channels
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Binding Thing Channel Channel Channel Bridge Thing Id, Description, … Confjguration Channel
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Thing Channel Channel Channel Bridge Thing Representation Item Type, Name, Label, Icon, Tags, … Item
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Representation Binding Thing Channel Channel Channel Bridge Thing Item
Link
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Bundle
Thing
Channel Channel Channel
Bridge Thing
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Eclipse SmartHome Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
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Eclipse SmartHome Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
Bundle
Thing
Channel Channel Channel
Bridge Thing
UI UI
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Eclipse SmartHome Binding Binding Binding Binding UI UI Persistence Rules REST Discovery … UIs
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Eclipse SmartHome Core Items Bindings Eclipse SmartHome Event Bus
PubSub PubSub
Rules
PubSub
Persistence
PubSub
Logging
PubSub
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How to program this?
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Bridge Thing
/ESH-INF/thing/bridge.xml
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Thing
/ESH-INF/thing/LCT001.xml
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Channel
/ESH-INF/thing/channels.xml
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Core ItemTypes
> Color > Contact > DateTime > Dimmer > Group > Location > Number > Player > Rollershutter > String > Switch
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What does Lost in Abstraction mean?
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Use case: Wash again, if washing fjnished and the door has not been opened afuer 16h.
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Hardware UI State Washing Program Extra Parameters Power Water Amount Temperature Spin Extra H2O Door contact Time running Washing Machine Convenient ✓
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Hardware UI State Washing Program Extra Parameters P
- w
e r W a Washing Machine Power Water Amount Temperature Spin Extra H2O Door contact Time running Gateway Loss
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Hardware UI State Washing Program Extra Parameters P
- w
e r W a Washing Machine API Power Water Amount Temperature Spin Extra H2O Door contact Time running Power Water Amount Temperature Spin Extra H2O Door contact Time running
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Power Water Amount Temperature Spin Extra H2O Door contact Time running My Washing Machine
Own Solution
Loss
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Power Water Amount Temperature Spin Extra H2O Door contact Time running Thing Model SwitchItem NumberItem NumberItem NumberItem SwitchItem ContactItem NumberItem Items
Own solution
X Y Setup Power Plug: Consumption NumberItem Use Cases
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Use case: Wash again
- n wmPower changed to OFF
timer = startTimer({ wmPower.state = ON }, now + 16h) end
- n wmDoor changed to OPEN
if timer then timer.cancel() end
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Eclipse SmartHome Benefjts
> Good framework to implement IoT device lifecycle > Easy to understand > Parallel development: UI + Binding > UI Testing without devices > Ofgline, “Intranet of Things”
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