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Systèmes intégrés adaptatifs ultra basse consommation pour l'Internet des Objets

Guillaume Patrigeon 1
1 ADAC - ADAptive Computing
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : The Internet of Things is an infrastructure enabling advanced services by interconnecting things. Although the large variety of Internet of Things applications involve many kinds of technical solutions, many of those are based on a typical architecture that can be divided in three layers: the perception layer, the transport layer and the services layer. The dispositive that composed the perception layer, called “sensor nodes”, are subject to technical requirements: size, security, reliability, autonomy, and long lifetime. Sensor nodes’ energy efficiency is the most critical point where traditional technologies show their limitations. New strategies and solutions are proposed to overcome this technical challenge; however, how can those be evaluated, with which tools and at which level? How emerging technologies can be optimized and integrated inside microcontrollers for Internet of Things applications? Which are the new strategies for energy management to adopt with technologies such as 28 nm FD-SOI and non-volatiles memories? What are their limitations? Will they be sufficient? To evaluate the integration of emerging technologies inside low power microcontrollers, we propose a new methodology using an FPGA-based sensor node prototyping platform. Able to operate in already deployed wireless sensor networks, we use it to perform fast and precise evaluations, taking account of the application context. We studied and evaluated multiple memory architecture configurations based on STT magnetic memories as a replacement of traditional solutions, and showed that the non-volatile STT memory technology can improve a microcontroller’s energy efficiency for embedded applications.
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https://hal-lirmm.ccsd.cnrs.fr/tel-02947275
Contributor : Guillaume Patrigeon <>
Submitted on : Wednesday, September 23, 2020 - 6:48:35 PM
Last modification on : Wednesday, May 26, 2021 - 2:42:03 PM
Long-term archiving on: : Thursday, December 24, 2020 - 6:34:23 PM

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  • HAL Id : tel-02947275, version 1

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Guillaume Patrigeon. Systèmes intégrés adaptatifs ultra basse consommation pour l'Internet des Objets. Micro et nanotechnologies/Microélectronique. Université de Montpellier, 2020. Français. ⟨tel-02947275⟩

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