Product Introduction

The 0-Year-Old Infant Presence Detection Surrogate is a high-fidelity in-cabin test device designed for the development, validation, benchmarking, and assessment of Child Presence Detection systems for newborn occupants. Representing the body size, respiration characteristics, posture features, limited motion behavior, and multi-sensor perception properties of a typical 0-year-old infant, the surrogate provides a repeatable and controllable platform for evaluating CPD system performance under realistic vehicle cabin conditions.

The surrogate is specifically designed for infant-related CPD scenarios, such as rear-facing child seats, infant carriers, sleeping postures, partially covered conditions, and low-motion or weak-signal states. It supports programmable abdominal respiration simulation and limited infant-like motion, enabling reliable evaluation of radar-, Wi-Fi-, UWB-, vision-, thermal-, and multi-sensor-fusion-based CPD technologies.

It can generate respiration-related radar micro-Doppler signatures similar to those produced by real infants and provides representative radar cross-section characteristics for infant occupant detection. The system supports testing requirements for Euro NCAP, C-NCAP, i-VISTA, and customized CPD assessment protocols.

Key Capabilities

The surrogate is designed to support comprehensive CPD validation for newborn occupant scenarios.

It supports 5 GHz Wi-Fi sensing, UWB, 24 GHz radar, 60 GHz millimeter-wave radar, 140 GHz millimeter-wave radar, 4D imaging radar, vision-based sensing, and multi-sensor fusion systems. Through programmable respiration and controlled body motion, the surrogate enables repeatable simulation of typical infant states, including sleeping, quiet breathing, shallow breathing, irregular breathing, and apnea-like pauses.

The product provides:

• Anthropometric representation of a 0-year-old infant
• Programmable abdominal respiration simulation
• Respiration-related radar micro-Doppler response generation
• Representative radar cross-section characteristics of real infants
• 5-DoF infant motion configuration
• Multi-sensor compatibility for radar, Wi-Fi, UWB, vision, and fusion-based systems
• Support for standard and customized CPD test protocols

Physiological Simulation

The surrogate provides adjustable respiration parameters to reproduce different infant breathing states inside the vehicle cabin.

• Respiratory rate: 10–60 bpm, adjustable
• Respiratory amplitude: 1–20 mm, adjustable
• Respiratory mode: abdominal breathing
• Breathing pattern: fixed, programmable, random, periodic, or event-triggered
• Heartbeat simulation: not included
• Eye-blink control: not included
• Body temperature control: not included

These functions allow the surrogate to simulate quiet sleep, shallow breathing, irregular breathing, weak breathing, temporary breathing pauses, and other low-motion infant presence conditions.

Programmable Motion Simulation

The 0-Year-Old Infant Presence Detection Surrogate adopts a 5-DoF motion configuration to reproduce limited but representative infant movement during CPD testing.

Motion Configuration: 5 DoF

• Head rotation: 1 DoF
• Left arm forward swing: 1 DoF
• Right arm forward swing: 1 DoF
• Left leg forward swing: 1 DoF
• Right leg forward swing: 1 DoF

The motion system supports predefined, programmable, and random motion sequences, enabling the simulation of slight infant movement, intermittent limb motion, and low-amplitude body activity in realistic in-cabin scenarios.

Advanced Breathing Simulation

9 Intelligent Control Modes

The surrogate incorporates a nine-mode intelligent breathing control system to reproduce dynamic respiratory variation under different infant states. Compared with conventional fixed-pattern respiration devices, this system provides more realistic and challenging test conditions for CPD sensors and algorithms.

The breathing control modes include:

1. Fixed breathing rate with increasing amplitude
2. Fixed amplitude with increasing breathing rate
3. Fixed breathing rate with amplitude increasing and then decreasing
4. Fixed amplitude with breathing rate increasing and then decreasing
5. Fixed breathing rate with randomly fluctuating amplitude
6. Fixed amplitude with randomly fluctuating breathing rate
7. Random variation of both breathing rate and amplitude within defined limits
8. Occasional random breaths inserted during normal breathing
9. Occasional breathing pauses inserted during normal breathing, with adjustable pause frequency

These modes support the simulation of regular infant breathing, shallow breathing, deep sleep, irregular respiration, and apnea-like events. They are especially valuable for evaluating CPD systems under weak-signal, low-motion, or highly variable physiological conditions.

Application Areas

The 0-Year-Old Infant Presence Detection Surrogate is suitable for:

• Infant CPD system development and validation
• Rear-facing child seat and infant carrier detection testing
• Sensor performance benchmarking
• Radar micro-Doppler algorithm verification
• Wi-Fi sensing validation
• UWB sensing validation
• 24 GHz, 60 GHz, and 140 GHz radar testing
• 4D imaging radar evaluation
• Vision-based infant detection testing
• Multi-sensor fusion algorithm development
• Euro NCAP, C-NCAP, i-VISTA, and customized protocol testing
• Laboratory, vehicle-level, and proving-ground CPD evaluation