ACPDR301T1 Life Detection Radar

Technical Exchange

01 PART: Technical Introduction

Life Radar Overview

• Launched 60GHz vital sign detection radar in Q2 2022

• Applied to Passenger Car CPD (Child Presence Detection) and Commercial Vehicle leftover living body detection

• Radial distance ≥2.7m (top-mounted)

• Enables in-vehicle personnel position detection

• Low missed detection rate by using breathing and limb micro-movement information for detection

• Low false alarm rate by filtering interference such as tapping and vibration

• Compact size for easy integration into the ceiling

• Short startup and response time

• Optional installation positions

• Sleep current: ＜1mA @12V & 24V

Specification Parameters

ACPDR301T1 Life Detection Radar
Indicator	Value
Operating Frequency Band	60GHz ~ 64GHz
Peak EIRP	≤18dBm
Ranging Range	0.053m~2.7m
Range Resolution	0.053m
FoV (Field of View)	120° (Azimuth, Elevation)
Angle Measurement Accuracy	±1° (Azimuth, Elevation)
Speed Measurement Range	±1.7m/s
Speed Resolution	0.0154m/s
Data Refresh Rate	＜1s
Operating Voltage	8~32VDC, Type 24VDC
Peak Power Consumption	≤3.3W
Peak Current	≤280mA@12VDC<br/>≤140mA@12VDC
Quiescent Current	≤1mA@12VDC & 24VDC
Operating Temperature	-40℃~+85℃
Storage Temperature	-40℃~+105℃
Relative Humidity	0% - 95% (±5%)
Air Pressure	86kPa～106kPa
Dust and Water Sealing	IP5K2
Overall Dimensions (L×W×H)	80mm45mm14mm
Weight	＜100g
Operating Life	10 years
Shock Resistance	500m/s²@ 6ms half-sine<br/>(10 times in three directions)
Vibration Resistance	20[(m/s²)²/Hz]@10Hz /0.14[(m/s²)²/Hz]@1000Hz peak

Radar Features

Company	S Company	b Company
Performance Parameters	STA79-5	MOD620	ACPDR301T1
Operating Frequency [GHz]	77~81	60~64	60~64
Ranging Range [m]	0.1~1	0.1~2.5	0.053~2.7
Ranging Accuracy [m]	±0.04	/	±0.053
Range Resolution [m]	0.04	0.375	0.32
Speed Measurement Range [m/s]	/	/	-1.7~+1.7
Speed Measurement Accuracy [m/s]	/	/	±0.04
Speed Resolution [m/s]	/	/	0.0154
Azimuth FoV [°]	±60	±60	±60
Elevation FoV [°]	±10	±30	±60
Peak Power Consumption [W]	1.8W	±0.3°@0°	3.3W
Quiescent Current	/	/	＜1mA
Dimensions [mm x mm x mm]	92×47.4×18.3	55×45×14	67x56.7x16.4

Overall indicators are on par with international mainstream radars, and some indicators are superior.

Commercial Vehicle Coverage Solution

• Radar Coverage: 10m2.3m1.9m

• Installation Position: Central top mounting, longitudinal spacing ≤2.7m

• Installation Roll Angle: Parallel to the floor surface, error ±2°

• Installation Tilt Angle: Parallel to the floor surface, error ±2°

• Aesthetic Solution: Concealed installation & others

Concealed Installation Behind Honeycomb PP Board

Passenger Car Coverage Solution

• Meets Euro_NCAP 2023 CPD 4-point scoring requirements

• Functions: When there are living bodies in the vehicle, provides early warning through headlight flashing and horn honking; if the warning is ignored, contacts the owner via eCall

• Alarm Levels: Primary alarm, secondary alarm

• Equipped with system self-inspection function

• Supports UDS diagnosis and diagnostic flashing

• Supports CAN-OTA upgrade

• Supports bootloader

• Supports fault diagnosis

• Supports occlusion detection and alarm

• Supports offline calibration and after-sales calibration

• Supports network wake-up

Concealed Installation in the Ceiling

The above covers 3.0m2.3m0.7m for 7-seater commercial vehicles and can meet the coverage requirements of other small vehicle models.

Radar Structure and Installation

• Bracket Options: Sheet metal bracket or plastic bracket

• Fixing Method: M6 bolt + nut fixation

Structural Explosion Diagram: Cover Plate → Radar Board → Thermal Conductive Gel → Rear Shell/Antenna Cover → Self-tapping Screws

Customizable sheet metal brackets and plastic brackets; the second structural scheme is not mold-opened, and brackets are customized according to actual installation needs.

Interface

• Interface Model: mini50-10P

￮ Male Connector: 349681801

￮ Female Connector: 349671001

• Connector Information:

￮ Insertion Force: ＜75N, Extraction Force: ＜100N

￮ Pin Pitch: 1.8mm

• Equipped with IGN interface for hardware wake-up

• CAN Bus Interface:

￮ Communication Rate: ~500kbps

￮ With wake-up function

Pin Number	Definition	Meaning
1	NC	Reserved Pin
2	NC	Reserved Pin
3	NC	Reserved Pin
4	NC	Reserved Pin
5	NC	Reserved Pin
6	GND	Ground
7	V-CANL	Vehicle CAN-
8	V-CANH	Vehicle CAN+
9	KL30	Power Input
10	KL15	Wake-up

Installation Cover Requirements

• Shape: As flat as possible, uniform thickness, no sharp structures

• Hydrophobicity required

• Angle α between radar beam and cover ≤70°

• Distance D between radar and cover ＞5mm

• Cover Material: Plastic (excluding carbon fiber and metal)

• Recommended Materials and Thicknesses (integer multiples of the values in the table are acceptable):

Material	Optimal Thickness t (mm)
ABS	3.51
PP	4.04
PA	3.74
PC	3.71

• Painting Requirements: Paint should not contain metal ions; if a small amount of metal ions is necessary, performance evaluation by Chongqing Ruixing is required.

Appearance Dimensions

• Overall Dimensions: 804514 (mm)

• Body Dimensions: 664514 (mm)

• Installation Feature Dimensions: 3*Φ3.5 (mm), M3 bolt

• Weight: ＜100g

Smaller size than competitors from SS\BT companies

Structural Composition

Serial Number	Part	Material	Dimensions	Weight	Origin	Process	Quantity
1	Rear Shell/Antenna Cover	PBT-GF30 or PC (black)	804514	31g	China	Injection Molding	1
2	Cover Plate	ADC12	66457	40g	China	Die Casting	1
3	PCBA	FR4 + Al surface	60301.6	15g	China	SMT	1
4	Self-tapping Screw	304	PA2*8	2g	China	Purchased Finished Product	4
5	Thermal Conductive Gel	-	15*15	0.2g	China	Purchased Finished Product	1
6	Label	-	-	-	-	Laser Marking	-

Complies with ISO shock and vibration standards, see DV compliance for details

Thermal Simulation

• Optimized thermal design with chip junction temperature rise ＜25℃, meeting junction temperature requirements

Serial Number	Chip	Simulated Tj (℃)	Temperature Rise (K)
1	AWR6843AOP	88.78	2.78

• Internal Heat Dissipation:

￮ MCU heat is conducted to the shell through PCB and heat sink

￮ Heat dissipation through shell vents and natural conduction

Part Name	Material	Thermal Conductivity (W/mK)
Shell	PBT-GF30 or PC	0.28
Cover Plate	ADC12	220
PCB	FR4	8.3 (in-plane)<br/>0.5 (vertical)
Thermal Conductive Silicone	Silicone	3
Chip	Si	150
Pressfit Pin	Bronze, C51000	438

Antenna Design

• Antenna Type: On-chip patch 2D antenna array

• Gain: 5dB

• Advantages: Reduces the impact of feeder insertion loss on performance

Hardware Architecture

• Operating Frequency: 60G~64G

• Voltage Range: 8~32V

• Operating Current: ＜0.28A max@DC12V

• Wake-up Modes: IG, CAN fixed frame

• CAN Rate: 500kbps, 2Mbps adjustable

All hardware indicators meet technical requirements

PCB Board

• Dimensions: 60mm*30.35mm

• Process: FR4 (simple process, low cost)

• Consistent circuit and interface across boards

• Optimized PCB shape to ensure radar antenna radiation performance

Detection and False Alarm Testing

• Detection Test Results:

￮ Office Environment: Meets requirements

￮ In-vehicle (Rearview Mirror, B-pillar, Rear Seat Top): Meets requirements

• False Alarm Test Results:

￮ No false alarms from external interference: Meets requirements

Test Item	Test Method	Test Results
		Test Position	Expected Test Result	Result
In-vehicle Living Body Detection	Tested living body (human) sits in each seat with doors and windows closed	All positions	Prompt for presence of vital signs	Qualified
External Interference Test	1. No living bodies in the vehicle, doors and windows closed.<br/>2. External living bodies approach the vehicle or cling to any part of the vehicle.	Outside the vehicle near doors, personnel clinging to window glass	No vital signs detected	Qualified

02 PART: Cooperation Cases

• Magna Design Win

• BYD-EM2E Model Matching

• Yutong Bus School Bus Project

Cooperation Case 1: Magna OHC Technology Demo

• Completed technical development: Meets in-vehicle life detection, anti-intrusion function, and no false alarms for external targets

• Cooperated with Magna for customer docking: Integration test in Magna OHC

• Newly added function: Intrusion detection function

• Full coverage of the entire vehicle area, effective detection of stationary targets, no false alarms from interference.

Cooperation Case 2: BYD-EM2E Model Matching

• Radar performance meets vehicle model requirements, follow-up business docking in progress

Cooperation Case 3: Yutong School Bus Living Body Leftover Detection System Project

• Goal: Enhance school bus safety by adding living body leftover detection system

• Technical Progress:

￮ Completed: Development of single radar meeting performance requirements

￮ In Progress: Development of living body detection system

• Highlight: Excellent anti-interference performance (resistance to kicking, jumping outside the monitoring area)

• Single radar performance is superior to mass-produced competitors' products.

Thank You for Watching!

|（注：文档部分内容可能由 AI 生成)