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LiDAR for ADAS and Autonomous Driving
(Intro to LiDAR Face-Off at Sensors EXPO 2018)
Jake Li (Business Development Manager – Auto LiDAR)
06-2018
Hamamatsu Corporation
2
The NEXT Generation of LiDAR – LiDAR Faceoff Session
Hamamatsu’s Market Involvement
3
LiDAR System Design
Photodetectors Light EmittersBeam Steering
(MEMs Mirrors)
✓ Global leader in photonic components for various industries, >$1 billion revenue
✓ Currently in discussion with majority of Tier I/OEM & LiDAR designers
- Si and InGaAs photodiodes, APD,
SiPM, distance image sensors
- For 905 & 1550nm systems
- Edge emitter laser diodes (CW/Pulsed)
- For 905nm systems- Electromagnetic based MEMs Mirror
(1D or 2D)
- For 905 & 1550nm systems
Autonomous and ADAS Overview (Today)
4
Level 0 Level 1 Level 2
Limited Automation
➢ No automation
➢ Driver has complete control
➢ Driver assistance
➢ Default level of automation
for most new cars today
➢ Limited automation
➢ Limited availability on some
new vehicles today
Ultrasonic Radar LiDAR Camera
Autonomous and ADAS Overview (Future)
5
Level 3 Level 4 Level 5
Technologies Still Being Developed
(Semi to Full Automation)
➢ Conditional automation
➢ Driver is expected to intervene
and take over the control at
any time
➢ High automation
➢ Driver can take over the
control but not required
➢ Full automation
➢ No driver interaction
necessary
Sensor FusionUltrasonic Sensors Camera GPS
3D Sensors Radar LiDARFunctional Safety
Introduction – Companies Working On AV Technologies
1. Fleet vehicles and Robo-Taxi by 2020-2025
2. Autonomous vehicles for consumer/commercial by 2025+
Image courtesy of Vision Systems Intelligence
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1. More than 80 billions invested in
driverless car technology (August
2014 to June 2017)
2. Venture capitalists invested more
than $4 billion in 2017 on technology
related to self-driving cars
3. Significant more
partnerships/investments/acquisitions
expected in 2018/2019
Introduction – Partnerships and Investment Activities
Image courtesy of Bloomberg
8
Introduction – Companies Working LiDAR Designs
Image courtesy of The Automotive LiDAR Market Report – April 2018 (Yole Development)
✓ More than 40 LiDAR developers/companies globally
Current Autonomous System Technology Comparisons
Performance Compared
Under Specific ConditionsCamera RADAR LiDAR
Dark, Little to No Light
Variable Lighting Condition
Adverse Weather
(Rain, Snow and Fog)
Angular Resolution
Color & Contrast Yes NoNo Color, Limited
Contrast Info
Cost of Today Technology
Will Not Work
Blinds the Camera
Shortens Range
Poor at Long Range
2 Mega Pixel
Resolution
(Low Cost)
Very Good
(Technology Not
Effected by Light
Conditions)
Very Good
(Technology Not
Effected by Light
Conditions)
Very Good
Currently (2-5 Deg)
Developmental (0.5-
1 Deg)
24 GHZ RADAR
(Medium Cost)
Higher Frequency
Radar
Very Good
Very Good
Shortens Range
0.1 Degree
Commercialized
LIDAR System
(Higher Cost)
Type of LiDAR – Mechanical TOF LiDAR (Scanning Based)
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Image courtesy of Google/Waymo
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Galvo Scanners/MirrorsPolygon Scanners/Mirrors
Type of LiDAR – Mechanical TOF LiDAR (Scanning Based)
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Mirror Based Flash LiDAR
(Image Courtesy of LeddarTech)
Light projector,
with 2D MEMS
mirrors
Photo Detector
timing circuit
Light source
2D Mirror Scanning
Method
Light projector,
with 1D MEMS
mirrors
Photo Detector Array
timing circuit
Light source
1D Mirror Hybrid Flash
Method
Type of LiDAR – MEMs Based TOF LiDAR (Scanning Based)
13
Traditional Flash Concept
(Commercialized)
VCSEL Based Flash Concept
(Still in Development)
Image courtesy of Continental
Type of LiDAR – Flash TOF LiDAR
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optical
antennas
Type of LiDAR – Other Concepts (Optical Phased Array)
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t = 0 t = T t = 2T t = 3T time
frequency
f0 fmax f0 fmax
B
Chirp-modulation (triangular) of frequency
Type of LiDAR – Other Concepts (FMCW LiDAR)
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The NEXT Generation of LiDAR – LiDAR Faceoff Session
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THANK YOU!!
Contact Info:
Jake Li
Please attend Hamamatsu speaking session at Sensors Expo:
Measuring Distance with Light for Automotive Industry: LiDAR and Other Techniques
Professor Slawomir Piatek
(June 27th, Wednesday, 11 AM, @ Automotive Theater)
