LIDAR Array Synchronized Beam Amplification for Extended Detection Range
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Solution Overview
Problem
Conventional LIDAR systems have limited detection range due to the low intensity of back-scattered light, which is further reduced by eye safety constraints, making it difficult to detect objects at a distance while ensuring safety from laser exposure.
Innovation Solution
A LIDAR array comprising multiple LIDAR systems with synchronized laser beams that overlap in a shared far range, amplifying each other's intensity to enhance detection range while maintaining eye safety by ensuring only one beam strikes an eye in the close range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If laser power is increased to extend detection range, then detection range is improved, but eye safety is compromised
Solution Approach 1:
The patent divides the scanning area into a close range and a far range, with different LIDAR systems responsible for different ranges. Multiple LIDAR systems work cooperatively, with each system operating at safe power levels while collectively achieving extended detection range through coordinated scanning and signal processing.
Solution Approach 2:
The patent combines multiple LIDAR systems to work together, merging their detection capabilities. By coordinating the operation of multiple systems and processing their combined signals, the array achieves extended detection range while each individual system maintains safe operating power levels, thus preserving eye safety.
2Length of stationary object
If multiple LIDAR systems operate simultaneously in overlapping scan areas, then detection range is extended, but risk of multiple beams striking an eye increases
Solution Approach 1:
The patent implements dynamic control of multiple LIDAR systems through synchronized scanning. The systems coordinate their beam positions and timing dynamically, ensuring that while scan areas overlap for extended detection range, the actual laser beams are temporally and spatially managed to prevent multiple beams from simultaneously striking the same location, particularly in the close range.
3Illumination intensity
If laser beams are synchronized to amplify each other in far range, then back-scattered light intensity is doubled, but synchronization complexity increases
Solution Approach 1:
The patent employs feedback mechanisms to manage the synchronization of multiple LIDAR systems. By continuously monitoring and adjusting the operation of each system based on feedback from the others, the array achieves coherent beam combining and amplified back-scattered light detection in the far range while maintaining manageable system complexity through automated coordination.
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
The solution increases the detection range by doubling the intensity of back-scattered light in the far range, ensuring eye safety and improving detection capabilities on directed surfaces, while maintaining a safe and effective scanning field.
Implementation Method 1
the first laser beam and the second laser beam are synchronized with one another in such a way that the first laser beam and the second laser beam mutually amplify one another in the shared far range
Implementation Method 2
When the laser beam strikes on an object, reflected light or back-scattered light is distributed or reflected across a wide spatial area
Data Source
AI summary
A LIDAR array is provided which includes a plurality of LIDAR systems. The first LIDAR system is spatially spaced apart from the second LIDAR system. A first laser beam of the first LIDAR system and a second laser beam are synchronized with one another in such a way that the first laser beam and the second laser beam mutually amplify one another in the shared far range.