Adaptive Distance Measurement Switching Between Passive and LiDAR
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional distance measuring methods, such as passive and active LiDAR, face challenges in accurately measuring distances to distant or low-contrast targets, and existing systems fail to switch between methods effectively, leading to degraded accuracy and increased power consumption.
Innovation Solution
A control apparatus that dynamically switches between a first optical system for passive distance measurement and a second optical system, such as LiDAR, based on the reliability of the distance information, using a processor to control the acquisition of distance information and optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the active distance measuring method (LiDAR) is used, then distance measurement accuracy is improved, but electric power consumption increases
Solution Approach 1:
The system dynamically switches between passive and active distance measuring methods based on real-time reliability assessment. The control apparatus evaluates the reliability of passive measurement results and transitions to LiDAR only when necessary, making the measurement system adaptive rather than static.
Solution Approach 2:
The system changes the measurement parameter by switching between two different distance measuring methods (passive and active LiDAR) based on the reliability of the current method. This parameter change allows optimization of both accuracy and power consumption under different conditions.
2Use of energy by moving object
If the passive distance measuring method is used, then electric power consumption is reduced, but distance measurement accuracy to distant targets deteriorates
Solution Approach 1:
The control apparatus continuously monitors the reliability of distance information obtained by the passive measuring method and provides feedback to determine when to switch to the active LiDAR method. This feedback mechanism ensures accurate distance measurement to distant targets while minimizing power consumption.
3Use of energy by moving object
If the passive distance measuring method is used, then electric power consumption is reduced, but distance measurement accuracy to low-contrast targets deteriorates
Solution Approach 1:
The system dynamically adapts its measurement approach by switching from passive to active LiDAR measurement when detecting low-contrast targets. This dynamic adjustment maintains measurement accuracy for difficult targets while preserving power efficiency for easier measurement scenarios.
4Use of energy by moving object
If the passive distance measuring method is used, then electric power consumption is reduced, but distance measurement accuracy in blurred state deteriorates
Solution Approach 1:
The control apparatus uses feedback from image analysis to detect blurred states and triggers a switch to the active LiDAR method when blurring is detected. This feedback loop ensures accurate distance measurement in challenging optical conditions while maintaining power efficiency during clear imaging conditions.
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
This approach enables high-accuracy distance measurement while reducing power consumption by selectively using LiDAR only when the passive method's reliability is low, thereby improving measurement accuracy and conserving energy.
Implementation Method 1
measuring a distance to a target based on a period from when an infrared laser beam is irradiated onto a target to when reflected light is received from the target
Implementation Method 2
measuring a distance to a target based on a period from when an infrared laser beam is irradiated onto a target to when reflected light is received from the target
Data Source
AI summary
A control apparatus is configured to control a first optical system for acquiring image information and a second optical system different from the first optical system. The control apparatus includes a memory storing instructions, and a processor that executes the instructions to acquire at least one of first distance information corresponding to the image information and obtained by using the first optical system, and second distance information corresponding to the image information and obtained by using the second optical system, and control the first optical system to acquire the first distance information in a case where reliability of the first distance information is higher than a predetermined value, and control the second optical system to acquire the second distance information in a case where the reliability is lower than the predetermined value.