Piloteur: A Lightweight Platform for Pilot Studies of Smart Homes University of Virginia John Feminella Devika Pisharoty Kamin Whitehouse

Sensing in Homes 2 Medical Monitoring Home Automation Energy Management People spend 65% of time in their homes

Homes are Hazardous Environments* 4 * Timothy Hnat, et al. The Hitchhiker's Guide to Successful Residential Sensing Deployments. SenSys’11.

5

Fast and Easy Large Scale Long Duration

7 Data Management Systems Deployment Frameworks Operational Tools

8 Configuration NodeSync NodeMonitoring NodeBridge Node

Initial Setup $> piloteur init Pick a name for your network []: MyPilot Enter the directory of config files: ~/mypilot Enter the IP address of your servers [AWS]: Setting up your network on AWS… The monitor interface is at Creating config files in ~/mypilot Your network is ready to deploy.

Initial Setup $> piloteur create_endpoint --on=/dev/ttyUSB0 --node-id=gamma created a new endpoint (gamma) $> piloteur check gamma [gamma] GREEN...

DriversDataLogs stdout stderr Gamma Endpoint Interface

Gamma Data Sync Node Sync Node Interface H35-ble Logs

DriversConfig ~/mypilot Checks

“syncnode": "data.cs.virginia.edu", "data_path": "˜/smarthome/data/", "logs_path": "˜/smarthome/logs/", "watchdog_path": "˜/smarthome/watchdog/", "logging_modules": [ "monitor", "timesync", "watchdog" ], "keyfile_path": "˜/smarthome-remote-key", "log_format": "[%(asctime)-15s] [%(levelname)s] $ %(name)s: %(message)s",

DriversConfig MyPilot Configuration Gamma Checks

Drivers and Data $> mkdir ~/mypilot/config/gamma/ $> cat > ~/mypilot/config/gamma/config.gamma.json { "loaded_drivers": ["tutorial"] } $> git add ~/mypilot/config/gamma/ && git push $> piloteur logs gamma tutorial [ T05:12: ] It's [ T05:13: ] It's [ T05:13: ] It's

DriversConfig MyPilot Configuration Home-25GammaZ-Wave Checks

Zwave.json "loaded_drivers": ["open_zwave“] Home25.json network={ ssid="deploymentEssid" psk="piloteur" key_mgmt=WPA-PSK auth_alg=OPEN} gamma.json "node-classes": [ “Zwave", “Home25" ],

$> piloteur config gamma { "ssh_bridge_host": " ", "loaded_drivers": [], "data_path": "~/piloteur/data/", "system_alert_recipients": [ ], "node-id": "gamma", }

"alert_recipients": [ ],

gamma

Logs Network connectivity Kernel failures Hardware reboots CPU utilization RAM utilization Core temperature Local + remote timestamp Etc. Endpoint System Log

Design Summary All config and software changes are version controlled Can be rolled back Nodes requires SSH daemon Monitoring server requires HTTP daemon Client requires cron Data is in raw format

Deployment and Case Study

Case Study 315 sensors 180 endpoints 45 homes Up to 4 months of data collection per home 2 phases 6 homes (researchers or friends) 39 homes (non-researchers)

Endpoint nodes: Rasberry Pi Sync and Bridge Nodes: UVa Cluster Storage: UVa NAS Config Node: GitHub Monitoring Node: AWS

Deployment Costs $85 per endpoint 45 minutes per endpoint ~20 to install OS 12 minutes to install Piloteur 13 minutes to assemble hardware and peripherals 15 minutes per installation Deployed by non-expert Web interface was key WiFi feedback

Performance 100,000+ faults logged All nodes suffered 5+ potentially fatal faults Only 26 maintenance visits required

Conclusions Piloteur Pilot “platform” Not a software framework Mitigate operational hazards, but also fast and easy

Thank You