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Logistic AGV: Sensor Selection and LiDAR
Presented by:
Yongping Wang, Ph.D.
Your Logo Goes Here!
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Goals for the Presentation
• Educational, for decision makers and system designers who haven’t introduced automation to their applications
• LiDAR brief introduction and application consideration
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Topic Coverage
• What is LiDAR?
• What can LiDAR do, what cannot?
• How to Select LiDAR?
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Logistic AGVs
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AGV Structure in General
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Sensors for AGV
• Camera
• Bar code scanner
• RFID
• Sonar
• Radar
• Laser distance sensor
• LiDAR: Light Detection And Ranging
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How to Use Laser to Measure Distance
• Phase shift detection: high precision, slow
• Pulse time-of-flight (ToF): real-time
• Triangulation
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LiDAR: Phase Shift Detection
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LiDAR: ToF
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LiDAR for AGV: Conventional Implementation
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LiDAR: Multiple Channel Example
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What is Difference Between Laser Scanner and LiDAR
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LiDAR for AGV: Digital Mapping
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LiDAR for AGV: Navigation, Collision Avoidance
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What Cannot LiDAR Do for AGV?
• Transparent object detection and avoidance
• Mirror or object with total reflective surface detection and avoidance
• Dusty environment
• Foggy, heavy rain and snow
• Very dark object
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LiDAR: Basic Hardware
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LiDAR for AGV: Basic Spec
• Distance
• Accuracy
• Field of View (FOV)
• Data rate
• Resolution
• Environment tolerance
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LiDAR for AGV: Other Consideration
• Safety
• Quality consistency
• Customization
• Cost
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LiDAR for AGV: Testing
• Distance measurement linearity
• Distance measurement for the targets with different reflectivity
• Angular or spatial resolution variation
• Temperature tolerance
• Mechanical vibration/shock tolerance
• Performance consistency from unit to unit
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LiDAR for AGV: Commercial Availability
• 2D rotation LiDAR
• 3D rotation LiDAR
• MEMS LiDAR
• Flash LiDAR
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LiDAR for AGV: 2D or 3D?
• Safety requirements
• Complexity of application environment
• Budgetary issue
• Excellency of software engineers
• Options of other sensors
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Why is Mass Production of LiDAR Challenging
• LiDAR hardware manufacture:
- Light source and sensor
- Optical Alignment
- Calibration
- Cost control
Each product has its own personality
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Why is Mass Production of LiDAR Challenging
• Firmware
- Noise reduction
- Multiple reflection
- Real time processing
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What Will Be the Next Generation
• Anything to replace laser to measure distance? Not yet
• Scanning mechanism innovation
• Massive application to drive the costs down
• LiDAR, LiDAR, LiDAR…
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For more information:
Speaker email: [email protected]
Website: www.ole-systems.com
Or visit MODEX Booth #1906
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Thank You