Lidar Simulation Apparatus Using Virtual 3D Scene Rendering
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Solution Overview
Problem
Current lidar light measurement systems face challenges in efficiently simulating defined ambient conditions and moving scenery for quality control and application development, particularly requiring large spatial setups and time-consuming reconfiguration for testing.
Innovation Solution
A simulation apparatus that generates time-delayed light signals using an electronic retardation unit, allowing for the creation of a simulated moving environment with adjustable time delays and scalable channel configurations, eliminating the need for physical reconfiguration and enabling realistic image representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical measuring sections are used to test lidar systems at defined distances, then measurement accuracy is improved, but spatial requirements and setup complexity increase significantly
Solution Approach 1:
The patent creates a virtual copy of the physical measurement environment using computer-generated 3D models and renders them in real-time. Instead of requiring physical objects at specific distances, the system generates synthetic images that simulate how the lidar would see actual objects, thereby eliminating the need for large physical measuring sections while maintaining measurement accuracy
Solution Approach 2:
The patent replaces the mechanical system of physical measuring sections with an electronic/software-based system. A graphics processing unit (GPU) generates synthetic lidar images from 3D scene models, substituting the need for physical distance measurement infrastructure with computational image generation
2Adaptability or versatility
If large measurement spaces are configured to accommodate multiple testing scenarios, then testing versatility is improved, but reconfiguration time and cost increase
Solution Approach 1:
The patent implements a dynamic virtual environment where 3D scene models can be programmatically modified and regenerated in real-time. Different testing scenarios are achieved by changing software parameters and rendering new synthetic images, allowing rapid transition between test cases without physical reconfiguration
Solution Approach 2:
The patent creates a universal virtual testing platform that can simulate any measurement scenario through software. The same hardware system (lidar + GPU) can generate synthetic images for diverse applications including autonomous driving, industrial inspection, and atmospheric sensing by loading different 3D scene models and parameters
3Reliability
If physical objects are positioned at specific distances for testing, then realistic measurement conditions are achieved, but spatial requirements and setup complexity increase
Solution Approach 1:
The patent creates accurate virtual copies of physical objects using detailed 3D models with realistic surface properties, materials, and geometries. These digital models are rendered to generate synthetic lidar images that faithfully reproduce how the lidar would detect actual objects, maintaining measurement condition realism without physical objects
Solution Approach 2:
The patent replaces the mechanical system of positioning physical objects at precise distances with computational methods. The GPU calculates synthetic lidar returns based on virtual object positions and properties, eliminating the need for physical object placement while maintaining measurement realism
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates cost-effective and time-efficient function and quality control by allowing for the simulation of various environments and scenarios, reducing spatial requirements and enabling rapid testing of lidar systems, especially in advanced driver assistance systems.
Implementation Method 1
The light signal emitted by the lidar light measurement system is detected by a photodetector
Data Source
AI summary
A simulation apparatus for a lidar light measurement system having a lidar light reception sensor (1), wherein a light transmitter (12) is present in the plane of the lidar light reception sensor (2).