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Infinite Battery time for Machine to Machine Communication. Master Thesis Muhammad Waqas Mir Aalto School of Electrical Engineering. The idea and Scope. Machine to Machine Communication - The New Revolution Variables controlling the growth of M2M devices
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InfiniteBatterytime for Machine to Machine Communication MasterThesis Muhammad Waqas Mir Aalto School of Electrical Engineering
The idea and Scope • Machine to Machine Communication - The New Revolution • Variables controlling the growth of M2M devices • Power consumption and Battery replacement • Idea of Solar Powered Cellular Sensor • Is battery life times of decades possible ? • Use of recent commercial products
Background • Technologicaladvances in Energy harvesting • Increasedefficeincy for Solarcells • Small processorplatforms with verylowenergyconsumptions • Ubiqutouscellularaccess • Exponentialgrowth of sensornetworks and devices • Physicalworldmeets the virutalnetworks • Power Consumption – A key design factor
Sleeping M2M Devices • Alwaysoffpowerconservationstrategy • Otherstrategies – Always on and On/Off • Active timeused for sensor data transfer • Use of cellularaccesstechnology to send data • Selftriggeredsleep and wakeupmethodology
System Architecture • Energy harvesting Power module • Control and Sleep Strategy module • Wireless Access Module • Electronics Module
Proto-typeDevelopment • Power Module - Battery, Solar Panel • Control and Sleep Module - Iterative design • Wireless Access Module - GPRS shield and USB Modem • Electronic Module - MOSFET Switches
Iterative Design strategy • Selection of suitableprocessorplatform • Optimization of sleeptimes and wakeuptrigger • Switchoffmethodolgy for perhipheraldevices • Configuration of Solarcells and batteries • Consideration of cellularaccesstechnology
Prototype Design Phases • Arduino + USB Modem • Arduino + GPRS Shield • Breadboard design + GPRS Shield • Complete Switch Off • Non Regulated Complete Switch Off
Conclusions • Infinitetime for sleepy M2M devicespossible ! • Efficieny of solarchargingmodule • Adaptivesleepstrategy • Advances in microelectronics and lowpowermicrocontrollers • Alwaysoffschemeoptimal for lowfrequencysensorupdates