Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Microphone Array for Speaker Localization and Identification in Shared Autonomous Vehicles

Ivo Marques
* ,
João Sousa
,
Bruno Sá
,
Diogo Costa
,
Pedro Sousa
,
Samuel Pereira
,
Afonso Santos
,
Carlos Lima
,
Niklas Hammerschmidt
,
Sandro Pinto
ORCID logo ,
Tiago Gomes
* ORCID logo
Version 1 : Received: 25 January 2022 / Approved: 26 January 2022 / Online: 26 January 2022 (13:07:39 CET)

How to cite: Marques, I.; Sousa, J.; Sá, B.; Costa, D.; Sousa, P.; Pereira, S.; Santos, A.; Lima, C.; Hammerschmidt, N.; Pinto, S.; Gomes, T. Microphone Array for Speaker Localization and Identification in Shared Autonomous Vehicles. Preprints 2022, 2022010399. https://doi.org/10.20944/preprints202201.0399.v1 Marques, I.; Sousa, J.; Sá, B.; Costa, D.; Sousa, P.; Pereira, S.; Santos, A.; Lima, C.; Hammerschmidt, N.; Pinto, S.; Gomes, T. Microphone Array for Speaker Localization and Identification in Shared Autonomous Vehicles. Preprints 2022, 2022010399. https://doi.org/10.20944/preprints202201.0399.v1

Abstract

With the current technological transformation in the automotive industry, autonomous vehicles are getting closer to the Society of Automative Engineers (SAE) automation level 5. This level corresponds to the full vehicle automation, where the driving system autonomously monitors and navigates the environment. With SAE-level 5, the concept of a Shared Autonomous Vehicle (SAV) will soon become a reality and mainstream. The main purpose of an SAV is to allow unrelated passengers to share an autonomous vehicle without a driver/moderator inside the shared space. However, to ensure their safety and well-being until they reach their final destination, it is required an active monitoring of all passengers. In this context, this article presents a microphone-based sensor system that is able to localize sound events inside an SAV. The solution is composed of a Micro-Electro-Mechanical System (MEMS) microphone array with a circular geometry connected to an embedded processing platform that resorts to Field-Programmable Gate Array (FPGA) technology to successfully process in hardware the sound localization algorithms.

Keywords

Shared Autonomous Vehicle (SAV); Field-Programmable Gate Array (FPGA); Microphone Array; Sound Source Localization

Subject

Engineering, Electrical and Electronic Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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