mmWave Occupant Detection Sensor
（Child Presence / Intruders / Number of Occupants）

The sensor can detect the in-cabin passengers including child left behind and intruder as well by mmWave radar technology. Analysing the reflected wave from the human body, the sensor can detect the occupant's/intruders' presence, occupants'/intruders' position and the number of occupants and identification of the body size(Adult/Child) from the micro movement of the body with a high degree of accuracy. We are utilising this technology to contribute to the prevention of child left behind accidents, which have become a social issue in recent years, through the child presence detection system.

Features

Our 60 GHz band FMCW radar outputs the occupant's/intruders' presence, occupants'/intruders' position and the number of occupants and identification of the body size(Adult/Child) within 5 seconds.

EuroNCAP^*1 23/25/25+ CPD^*2 compliant

Not only the in-cabin occupant detection features but also the intruder detection features are available in a single senser.

*1

EuroNCAP : New vehicle assessment programme to assess vehicle safety in Europe.
*2

CPD : Child Presence Detection

Technical Overview Under Development

Flow from radio wave transmission to data output

Unique machine learning algorithms enable the identification of people and objects, number of occupants, occupant presence/absence, information, body size classification and intruder detection.

Product Specifications
Item		Sample Specifications
Sensor Type		60 GHz band FMCW radar
Compatible Standards		Compliant with national radio laws
Antenna Directivity		Azimuth 120° Elevation 120°
Installation Position		Overhead console, ceiling, etc.
Detection Range		All seats and footwells
External Size		52ｘ52ｘ15ｍｍ * Prototype/Customise are available
Power Supply		USB bus powered
SensorOutput(^*)	Modes	CPD Mode SBR Mode with classification of an adult or child Intruder Mode 1 CPD…Child Presence Detection 2 SBR…Seat Belt Reminder
SensorOutput(^*)	Detection Item	The occupant's/intruders' presence, occupants'/intruders' position and the number of occupants and identification of the body size(Adult/Child)
Interface		USB
Casing		Plastic

*

Customization available

Sensor Size/External Drawing

Use Cases

Number of Occupants Detection

A sensor installed in the ceiling detects the number of occupants in the cabin contactlessly. In addition, our unique algorithm can distinguish the body size of the occupants and thus determine "where" and "who (adults/children/pets)" is in the cabin.

Child Presence Detection

The above-mentioned body size identification technology outputs an alert when a child is left in the cabin, helping to prevent accidents involving left-behind children. Meets the requirements of EuroNCAP 23/25/25+ CPD, the new vehicle assessment programme for assessing vehicle safety in Europe.

Intruder Detection

Intruder detection as a security feature that is activated when the vehicle is parked and locked. The system is equipped with an alert when an intruder enters the vehicle interior (or the area around the vehicle).

Demonstration Video

Sensors in the vehicle's ceiling sense what is going on inside. In the demonstration video, you can see a demonstration of each of the three functions - the child left behind, occupant detection, and intruder detection - compared with the actual interior of the vehicle.