The University of Hong Kong (20240329239). STATISTICAL ACOUSTIC SENSING-BASED SYSTEM AND METHOD FOR IN-VEHICLE CHILD PRESENCE DETECTION simplified abstract

STATISTICAL ACOUSTIC SENSING-BASED SYSTEM AND METHOD FOR IN-VEHICLE CHILD PRESENCE DETECTION

Organization Name

The University of Hong Kong

Inventor(s)

Chenshu Wu of Hong Kong (HK)

Yi Zhang of Beijing (CN)

Weiying Hou of Hong Kong (HK)

STATISTICAL ACOUSTIC SENSING-BASED SYSTEM AND METHOD FOR IN-VEHICLE CHILD PRESENCE DETECTION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240329239 titled 'STATISTICAL ACOUSTIC SENSING-BASED SYSTEM AND METHOD FOR IN-VEHICLE CHILD PRESENCE DETECTION

The present invention introduces a statistical acoustic sensing (SAS) based method and system for in-vehicle child presence detection. This method involves transmitting an acoustic signal to a subject in a vehicle cabin, receiving acoustic multipath signals scattered by the subject, and processing these signals to detect the presence of the subject.

• Leveraging in-car audio systems for accurate and responsive detection of young children, including newborns.
• Extracting channel impulse response (CIR) data from received acoustic signals and aggregating it to estimate acoustic channel state information (CSI).
• Obtaining an autocorrelation function (ACF) of the acoustic CSI based on a statistical acoustic sensing (SAS) model.
• Performing motion detection and breath tracking based on the ACF to detect the presence of the subject in the vehicle cabin.

1. 1. 1. Potential Applications:

- Child presence detection in vehicles for safety and security purposes. - Monitoring children left unattended in vehicles to prevent accidents. - Integration with existing vehicle security systems for enhanced protection.

1. 1. 1. Problems Solved:

- Addressing the risk of children being left unattended in vehicles. - Providing a reliable method for detecting child presence in vehicles. - Enhancing the safety measures for young passengers in vehicles.

1. 1. 1. Benefits:

- Improved safety for children in vehicles. - Real-time detection and alert system for parents and caregivers. - Utilization of existing in-car audio systems for additional functionality.

1. 1. 1. Commercial Applications:

"Statistical Acoustic Sensing (SAS) Based In-Vehicle Child Presence Detection System: Commercial Uses and Market Implications"

1. 1. 1. Questions about In-Vehicle Child Presence Detection:
         1. 1. How does this technology improve child safety in vehicles?

This technology enhances child safety by providing a reliable method for detecting the presence of children in vehicles, thereby preventing accidents and ensuring timely intervention if needed.

1. 1. 1. 1. 2. What are the key features of the statistical acoustic sensing (SAS) model used in this method?

The SAS model extracts channel impulse response (CIR) data, aggregates it to estimate acoustic channel state information (CSI), and utilizes an autocorrelation function (ACF) for motion detection and breath tracking to detect the presence of subjects in the vehicle cabin.

Original Abstract Submitted

the present invention provides a statistical acoustic sensing (sas)-based method and system for in-vehicle child presence detection. the sas-based method comprises: transmitting acoustic signal to a subject in a vehicle cabin; receiving acoustic multipath signals scattered by the subject; and processing the acoustic multipath signals to detect presence of the subject by: extracting a plurality of channel impulse response (cir) data from the received acoustic multipath signals; aggregating the extracted cir data to estimate acoustic channel state information (csi); obtaining an autocorrelation function (acf) of the acoustic csi based on a statistical acoustic sensing (sas) model; and performing motion detection and breath tracking on basis of the acf to detect presence of the subject in the vehicle cabin. the present invention can leverage in-car audio systems to detect presence of young children including newborns in an accurate and responsive manner.