Infineon and Reality AI teach cars how to 'listen'

Infineon Technologies and Reality AI have created an advanced sensing solution that gives vehicles the sense of hearing

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Infineon Reality AI

Today's advanced driver assistance systems (ADAS) are based on cameras, radar or lidar. Consequently, their target objects have to be within the field of vision to be recognised by the system.

What happens, however, with emergency vehicles? In these cases, objects are "felt" long before they are seen, so they remain invisible to ADAS for a longer period. Infineon Technologies e Reality AI have tried to find a solution to this problem by creating an advanced detection solution that provides vehicles with a sense of hearing.

It is a solution that adds XENSIV MEMS microphones to existing sensor systems and allows cars to 'see' around the corner and warn of moving objects hidden in the blind spot, as well as emergency vehicles approaching but still too far away to be seen.

In detail, the new detection solution is based on XENSIV MEMS microphones in combination with AURIX™ microcontrollers (MCUs) and Reality AI's Automotive See-With-Sound (SWS) system. Using machine learning-based algorithms, the system is able to detect emergency vehicles and cars, even when they cannot be seen by drivers or detected by the sensors built into the ADAS.

Il microfono XENSIV MEMS qualificato per il settore automobilistico IM67D130A </ a > ha un intervallo di temperatura di esercizio aumentato da -40 ° C a +105 ° C. Le basse distorsioni (THD) e l’elevato punto di sovraccarico acustico (AOP) di 130 dB SPL consentono al microfono di catturare segnali audio privi di distorsioni in ambienti rumorosi. Ciò consente una classificazione affidabile, anche se il suono della sirena è nascosto in un sottofondo elevato o nel rumore del vento. Questa tecnologia di rilevamento della base sonora può anche consentire altre applicazioni nei veicoli, come il monitoraggio delle condizioni stradali, il rilevamento dei danni o persino la manutenzione predittiva.

For audio signal processing, the Reality AI software uses Infineon's AURIX TC3x MCU family.


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