Bosch IoT Lab smartphone example for START hack 2019 challenge

We provide you an example smartphone client to access the ALEN car CAN data streams.

Happy coding with the Bosch IoT Lab challenge!

Helpful information to get started

Available documentation

• Pitch presentation: https://www.iot-lab.ch/wp-content/uploads/2019/03/START-Hack-pitch.pdf
• Workshop presentation: https://www.iot-lab.ch/wp-content/uploads/2019/03/START-Hack-workshop.pdf
• Documentation for all signals: https://www.iot-lab.ch/wp-content/uploads/2019/03/START-Hack-available-signals.pdf

Config

• In assets/config.json is the IP address of the ALEN box specified

Technical information

	Car	Simulation
REST/WS IP-Address	192.168.8.10	130.82.239.210
MQTT Broker	82.165.25.152:1883	82.165.25.152:1884
SSID	HUAWEI-2D17	STARTHack2019
WLAN Password	Wa1z3gouASQ5!	STARTgoescoding
SFTP Server (Port 22)	82.165.25.152	82.165.25.152
SFTP User	ftp_read	-
SFTP Password	ftp_read	-

• Empatica E4 connect portal: ask our team!

REST queries

• REST queries are done with the Google Volley library: https://developer.android.com/training/volley/
• Example queries are in MainActivity, GraphFragment, CANWebsocketClient, and SensorNameDropdownFragment

REST queries

Query	Description	Examples
/list	Lists all available signals	{"gateway":{"signals":["speed", "acceleration", "steering_wheel_angle",...]}}
/signal/'signal_name'	Provides detailed information (e.g. description and last value) on a single signal. signal_name = a signal name from signal list	{"signal":{"definition":{"name":"speed","unit":"Unit_PerCent","description":"in km/h"},"measurement":{"value":83.13725490196077,"utc":1550761385086735000}}
/signal/'signal_name'/value	Provides last value on a single signal. signal_name = a signal name from signal list	{"measurement":{"value":83.13725490196077,"utc":1550761385086735000}}

Websocket

• Websocket connection is established with the Java WebSocket library: https://github.com/TooTallNate/Java-WebSocket
• Example implementations are the CANWebsocketClient and in LogFragment the CANDataClient class.
• IP_Adress/ws to open the Websocket

Websocket events

Event	Description	Examples
onOpen	send on onOpen event a message on which signals and on which interval the websocket should receive messages signals = list of signal names samplerate = interval in ms withtimestamp = boolean if values should have a timestamp when the signal was last changed	{"signals":["speed", "acceleration", "steering_wheel_angle",...], "samplerate":250, "withtimestamp":true}
onMessage(String)	The event that receives incoming messages	Without timestamp: {"signals": {"speed":{"value":234.32, "utc":0}, "acceleration":{"value": 21.21, "utc":0}, "steering_wheel_angle":{"value":432,26, "utc":0}, ...}} With timestamp: {"signals": {"speed":{"value":234.32, "utc":1551865379474022000}, "acceleration":{"value": 21.21, "utc":1551865379535070000}, "steering_wheel_angle":{"value":432,26, "utc":1551865379535070000}, ...}}

Biometric sensors

Ask our team to borrow the devices!

Empatica E4

• Empatica E4 Connect (online platform for accessing data): https://www.empatica.com/connect
• Streaming app from phone to E4 Connect (Android): https://play.google.com/store/apps/details?id=com.empatica.e4realtime
• Streaming app from phone to E4 Connect (iOS): https://itunes.apple.com/us/app/empatica-e4-realtime/id702791633
• Signals in detail: http://box.empatica.com/documentation/20141119_E4_TechSpecs.pdf

Firstbeat

• PC client to read the data from device: https://we.tl/t-cXHvADb4fk
• Signals in detail: https://www.iot-lab.ch/wp-content/uploads/2019/03/Firstbeat-SPORTS-Physiological-and-GPS-variables.pdf

Ideas

• The car interior of the future: https://www.youtube.com/watch?v=iSVt5Ja0ZCk

"The observing car"

• Volkswagen Connect: https://www.vwconnect.com/driving-style-analysis/
• Mercedes InScore (only in German): https://www.mercedes-benz-bank.de/content/mbbank/de/produkte/versicherung/telematik-autoversicherung.html
• A more general approach: https://dl.acm.org/citation.cfm?id=3133939

"The emphatic car"

• Apple Watch EKG monitor: https://www.youtube.com/watch?v=3cE5kA6XDSY
• Empatica Embrace 2: https://www.empatica.com/
• A stress related approach: https://ieeexplore.ieee.org/abstract/document/7744577

"The caretaking car"

• Tesla Santa Mode as general example: https://www.youtube.com/watch?v=79Vx3spRFBk
• Mercedes Vivoactive: https://www.garmin.com/en-US/blog/general/garmin-collaborates-with-daimler-to-bring-connected-features-to-mercedes-benz-vehicles-with-the-vivoactive-3-gps-smartwatch/
• Audi Fit Driver: https://www.quattroworld.com/audi-news/audi-fit-driver/

More information about the event:

• Official START hack website: https://starthack.ch/
• Bosch IoT Lab website: https://www.iot-lab.ch/