LiDAR Detection Apparatus with Dynamic Laser Intensity Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LiDAR systems face reduced distance measuring accuracy and measurable distance when maintaining constant laser intensity, as increased intensity in one area reduces it in others, particularly affecting areas like the sky where no measurement is performed.
Innovation Solution
A detection apparatus with a light source that adjusts irradiation intensity for each detection area using image information from an image sensor, determining optimal intensity based on distance information to improve accuracy and measurable distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laser intensity is increased in areas where distance measurement fails, then distance measuring accuracy for distant targets is improved, but laser intensity in other areas reduces and overall distance measuring accuracy and measurable distance decrease
Solution Approach 1:
The patent applies local quality by determining and applying different irradiation intensities to different detection areas based on their specific characteristics. The determining unit identifies areas where distance measurement has failed and increases laser intensity specifically for those areas, while maintaining or reducing intensity in areas where measurement is already successful. This localized adjustment resolves the contradiction by improving distance measuring accuracy in specific problematic areas without unnecessarily increasing intensity across the entire field of view, thus avoiding energy waste and maintaining overall system balance.
Solution Approach 2:
The patent implements dynamics by continuously adjusting laser irradiation intensity in real-time based on feedback from distance measurement results. The system dynamically modifies the light emission parameters frame by frame, increasing intensity in areas where measurement failed in the previous frame and maintaining lower intensity where measurement succeeded. This dynamic adaptation resolves the contradiction by ensuring laser intensity is optimized for each specific measurement situation rather than being statically distributed, thereby improving accuracy where needed while conserving energy overall.
2Reliability
If laser intensity in the entire system is maintained constant, then power consumption is stable, but distance measuring accuracy and measurable distance reduce in areas where measurement is difficult
Solution Approach 1:
The patent applies parameter changes by modifying the laser irradiation intensity parameter dynamically based on measurement conditions. Instead of maintaining constant intensity, the system changes the intensity parameter selectively for different detection areas and frames. The determining unit analyzes measurement results and adjusts the light emission parameter accordingly, increasing intensity only when and where measurement capability is insufficient. This resolves the contradiction by improving distance measurement capability in challenging areas through targeted parameter adjustment while avoiding unnecessary energy consumption in areas where constant or reduced intensity suffices.
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
Enhances distance measuring accuracy and measurable distance by dynamically adjusting laser intensity, reducing power consumption and minimizing noise from environmental light, particularly for targets at varying distances.
Implementation Method 1
a light source configured to emit light having irradiation intensity changeable for each of a plurality of detection areas, the distance measuring unit configured to emit the light to the detection area and to acquire first distance information to the detection area using reflected light from the detection area
Implementation Method 2
an imaging unit configured to acquire image information on the detection area
Data Source
AI summary
A detection apparatus includes a first distance measuring unit that includes a light source configured to emit light having irradiation intensity changeable for each of a plurality of detection areas, the first distance measuring unit configured to emit the light to the detection area and to acquire first distance information to the detection area using reflected light from the detection area, a second distance measuring unit configured to acquire second distance information to the detection area using image information, and a determining unit configured to determine the irradiation intensity based on the second distance information.