Boost Fertility New Invention Ups Success Rates.pdf
Really fast Android
1. Really fast Android: AMG Performance Media
Jörg Pleumann
Project Manager Mobile Solutions Android
MEDION AG
DroidCon
Berlin, March 14th, 2012
2. Me
● Until October Need help?
Need help?
● Head of Android Development Contact them!
Contact them!
● Noser Engineering, Winterthur, CH
● Lots of cool Android projects!
● Since November
Want to join?
Want to join?
● Android SW Project Manager Contact me!
Contact me!
● MEDION AG, Essen, DE
● Lots of cool Android projects! :)
3. Android so far...
● Phones
● Tablets
● Media Players
● Set-Top Boxes
● Connected Home
● Watches
What could be the next big thing?
What could be the next big thing?
4. Project Setting
● Mercedes-AMG GmbH
● German maker of high-end sports cars
● SLS-AMG (571 PS V8 @ 317 km/h)
● Approached Noser in 2009
● Goal: Supplementary on-board system
● Telemetry
● Racing
?
● Internet / Apps
● Should be based on Android
7. Hardware (III)
● Minimally invasive approach
● Modification of the head unit impossible
● System had to co-exist with head unit
● Shared WVGA display and controls
● Additional ARM-based board
● Freescale i.MX 35 with 256 KB RAM
● Already used within Daimler
● Linux drivers existed
● UMTS / WLAN router
8. Software
● Feasibility & stepwise refinement
● Modified Android 2.x
● Challenges
● Porting and modifying Android
● Extensive, attractive application on top
● Special automotive requirements
● From evaluation to mass production
Some interesting points to follow
Some interesting points to follow
9. Screen & Controls
● Display & controls shared with Head Unit
● User switches explicitly using a button
● System can also switch on-demand
● Head unit messages appear in popup
● Not a touchscreen
● Controls serve as cursor pad / trackball
● Standard Android keys exist
● Virtual mouse mode
10. Telemetry
● System needs to access CAN data
● Additional CAN board acts as firewall
● Events come in via SPI
● Delivery to application layer via service
● Loosely modeled after Android sensor
interface
● Class CanManager
Not public, sorry! :)
Not public, sorry! :)
● Class CanListener
11. Security
● Theme is distraction-free driving
● Minimum font sizes
● Maximum response times
● Special challenge: Apps
● Imagine Angry Birds at 300 km/h
● System enters „DriveMode“ when in motion
● Only specially signed apps allowed to run
● Others have limited access to display
12. Testing
● Automated JUnit
tests
● Manual click-
through tests
● Software CAN
simulator
● Tests with the real
hardware
13. Results
● It works!
● Officially unveiled at IAA 2011
● Available for AMG-SLS Coupe and Roadster
25. What are the others doing?
● Automotive Android
● SAIC: Roewe 350
● Continental: AutoLinQ
● SAAB: Iqcon
● Renault: R-Link
● Google & General Motors: Electro mobility
● Connected Android / iPhone
● Harmann: Android Accessory Development Kit
● BMW Mini Connect
26. Summary
● Android suitable for automotive
● Some modifications needed
● Telemetry data
● Security requirements
● You get a lot of things for free
● Complete, extensible software stack
● Modern, touch-based user interface
● Good time-to-market (thanks to Java)
● My guess is: It will happen
