BikeNet - BikeNet: A Mobile Sensing System for Cyclist...

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Click to edit Master subtitle style BikeNet: A Mobile Sensing System for Cyclist Experience Mapping SHANE B. EISENMAN GAHNG-SEOP AHN Columbia University EMILIANO MILUZZO, NICHOLAS D. LANE, and RONALD A. PETERSON ANDREW T. CAMPBELL Dartmouth College From ACM Transactions on Sensor Networks (TOSN), vol. 6, no. 1, Decembe Presented by: Travis Cossairt February 21, 2011 EEL 6788
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Outline Introduction Hardware Design Software Design Incentivizing Usage System Evaluation Conclusions & Significance
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Introduction “BikeNet is a mobile sensing system for mapping the cyclist experience” Leverages the MetroSense Architecture[2] Project embeds multiple hardware sensors onto a bicycle Dual mode operation for data collection to handle areas without network connectivity Web-based portal created for
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Hardware Design Organized into 3 tiers: Mobile Sensor Tier Sensor Access Point (SAP) Tier Backend Server Tier
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Mobile Sensor Tier # of sensors that are bicycle and human-mounted to create a BAN (Bicycle Area Network) Gathers data on cycling performance, cyclist heath/fitness, and environment on route Includes: 2-axis accelerometer, thermistor, photodiode, microphone, camera, multiple radios, GPS, C02, Biofeedback, magnetometer (car detection), etc.
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Sensor Access Point (SAP) Tier Offers high performance/reliability and secure gateway access from sensor tier to backend servers Point of command to task available sensors with user application requests/queries Can also be fitted with sensors to provide context/validation for any uploaded data Authors experimented with both static (wired directly to internet e.g. Tmote Invent plugged into IEEE 802.11 access point) or mobile (e.g. radio access via phone GSM/GPRS)
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Backend Server Tier Backend members are Ethernet-connected servers that have “practically unbounded storage and computational power” Provides number of services to architecture that will be described in more detail in Software Design (application request/queries in sensor tier, and to retrieve/visualize sensed data)
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Software Design The software system provides a number of services to the 3 hardware tiers including: BikeNetRoleAssignment Intra and Inter-BAN Mangement Data Exchange Services Ground Truth Sensing Query Management Route Checkpoints Query Submission Portal Sensor Data Storage/Processing/Visualization System State Database
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BikeNet Role Assignment BAN divides functionality into logical roles: Pedal Sensor/Wheel Sensor Tilt Sensor/LateralTiltSensor: can measure slope/terrain CompassSensor MetalDetector: Detect passing cars
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BikeNet - BikeNet: A Mobile Sensing System for Cyclist...

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