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Design and implementation of power management strategies for long range radio module with energy harvesting

Abstract : The advent of the Internet of Things has enabled the roll-out of a multitude of Wireless Sensor Networks. These networks can be used in various fields, such as agriculture, industry or the smart city, where they facilitate fine optimization of processes. These devices are often powered by primary or rechargeable batteries, which limits their battery life. Moreover, it is sometimes not possible or financially viable to change and/or recharge these batteries. A possible solution is to harvest energy from the environment to power these sensors. But these energy sources are unreliable, and the sensor must be able to prevent the complete depletion of its energy storage. In order to adapt its energy consumption, the node can match its quality of service to its energetical capabilities. Thus, the device can continuously operate without any service interruption. This thesis presents the methods used for the conception of a completely autonomous sensor, powered by energy harvesting and communicating through a long range LoRa network. In order to ensure its power supply, a board has been designed to harvest energy from multiple energy sources simultaneously. A power management software module has then been developed to calculate an energy budget the sensor can use, and to choose the best way to spend this budget over one or multiple tasks. This work has enabled the development of an energy autonomous industrial sensor prototype.
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Submitted on : Monday, September 9, 2019 - 2:49:27 PM
Last modification on : Wednesday, September 9, 2020 - 4:04:51 AM
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  • HAL Id : tel-02281759, version 1


Philip-Dylan Gléonec. Design and implementation of power management strategies for long range radio module with energy harvesting. Hardware Architecture [cs.AR]. Université Rennes 1, 2019. English. ⟨NNT : 2019REN1S017⟩. ⟨tel-02281759⟩



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