Reasoning about naming systems
ACM Transactions on Programming Languages and Systems (TOPLAS)
N-smarts: networked suite of mobile atmospheric real-time sensors
Proceedings of the second ACM SIGCOMM workshop on Networked systems for developing regions
Proceedings of the 6th ACM conference on Embedded network sensor systems
Proceedings of the 7th international conference on Mobile systems, applications, and services
VTrack: accurate, energy-aware road traffic delay estimation using mobile phones
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
FoneAstra: making mobile phones smarter
Proceedings of the 4th ACM Workshop on Networked Systems for Developing Regions
Smart Connect: last mile data connectivity for rural health facilities
Proceedings of the 4th ACM Workshop on Networked Systems for Developing Regions
A survey of mobile phone sensing
IEEE Communications Magazine
Hijacking power and bandwidth from the mobile phone's audio interface
Proceedings of the First ACM Symposium on Computing for Development
Open data kit sensors: mobile data collection with wired and wireless sensors
Proceedings of the 2nd ACM Symposium on Computing for Development
Open data kit sensors: a sensor integration framework for android at the application-level
Proceedings of the 10th international conference on Mobile systems, applications, and services
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Ubiquitous availability of cellular network and cheap mobile phones have made them promising sensing platforms for various application domains including healthcare, environment, and astronomy among others. However, existing mobile phone platforms, including even smartphones, provide limited in-built sensing capabilities and lack standard interfaces to connect external sensors. In this paper, we propose MELOS (Mobile Extension for LOw-energy Sensing) a low-cost mobile phone extension that works virtually with all the mobile phones, including low-cost phones since it interfaces with the phone over standard audio port and Bluetooth. The proposed platform augments mobile phones with additional sensing capabilities with minimal overhead in terms of energy consumption. MELOS provides capability to switch on-board modules off as per application requirements while keeping low power interface (audio) "always-on" (to keep the connection) thus resulting in significantly small active mode power consumption. Local storage capability on board ensures that the data is transferred over high bandwidth, high-power consuming Bluetooth interface in burst mode resulting in low energy consumption per byte of data transfer. Interface with a mobile phone ensures that the capabilities of the MELOS platform can be exploited remotely using the cellular connectivity. Using MELOS, we prototype a sample application to monitor energy consumption of several electrical appliances and also demonstrate appliance control using a relay based circuit.