Infineon and Cerence Ready AI Emergency Vehicle Detection Technology

Driving the Mercedes-Benz EQS EV at this company’s proving ground, I was able to experience how the car’s SAE Level 3 driver assistance system was able to recognize when an emergency vehicle was approaching from behind thanks to the sound of his siren.

Now, Infineon Automotive Technologies and Massachusetts-based artificial intelligence specialist Cerence Inc. are partnering on these systems, using Infineon’s microelectromechanical systems (MEMS) microphone technology and Cerence’s AI.

These Infineon microphones are the same type that automakers can use inside car cabins for features like voice recognition, Peter Schiefer, president of the Infineon Automotive Technologies division, said in a presentation for the company’s OctoberTech conference. “The microphone is also suitable for outdoor applications, such as siren or detecting road conditions,” he said.

Reflecting on the arrival of SAE Level 3 automation from Mercedes, Cerence Director of Product Management Stefan Hamerich observed in a post on the company’s website that “Cerence Emergency Vehicle Detection (EVD) is one of the most critical examples of how the co-driver can understand the world around them and make the roads – and the drivers and passengers – safer.

A challenge in identifying mermaids is the incredible variety of sounds used around the world. According to Cerence, there are more than 1,500 different siren sounds that the company’s AI is trained to identify. Mercedes Drive Pilot Level 3 technology automatically stops the car on the right side of the lane when a siren is detected, making room for the vehicle to pass to the left side.

Microphones mounted in the cabin listen with the occupants of the vehicle while the entertainment system plays music. Knowing what it sounds like allows the AI ​​to filter the music from sounds picked up by outside microphones, so it can tell what a siren is and what Axl Rose is.

Hamerich also stresses the importance of systems that use sound to detect emergency vehicles rather than just relying on cameras to monitor their flashing lights. “Sensors that detect incoming emergency vehicles using images and lights are limited in situations where they are blocked or obstructed by other cars or by bad weather,” he wrote. . “By using multiple sensors, Cerence EVD helps provide early detection that can save countermeasures critical seconds in an emergency.”

The Infineon MEMS microphone is ruggedized for out-of-car service and qualified to AEC-Q103-003. This means it can tolerate an operating temperature range of -40°C to +105°C. It does this with total harmonic distortion (THD) of less than 0.5% at a sound pressure level of 94dB and a high acoustic overload point of 130dBSPL, so the mic captures distortion-free audio signals in noisy environments, says Infineon.

Comments are closed.