Dual-Resolution Camera Vehicle Control for Power Efficiency
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Solution Overview
Problem
Existing vehicle control systems face high power consumption due to the need for continuous high-resolution camera capture to accurately recognize a target person's behavior, leading to inefficiencies in user authentication and behavior recognition.
Innovation Solution
A vehicle control device and method utilizing two cameras with different resolutions, where a first camera with lower resolution captures surroundings at a distance and a second camera with higher resolution captures closer images, allowing for reduced power consumption and accurate behavior recognition by switching between behavior modes based on distance and user authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous high-resolution camera capture is used to accurately recognize target person behavior, then behavior recognition accuracy is improved, but power consumption increases
Solution Approach 1:
The patent segments the behavior recognition process into two distinct stages: a first behavior mode recognition process using low-resolution imaging for initial detection, and a second behavior mode recognition process using high-resolution imaging for detailed analysis. This segmentation allows the system to use computational resources efficiently by reserving high-resolution processing only when necessary.
Solution Approach 2:
The patent changes the imaging parameter (resolution) dynamically based on the recognition stage. The imaging device switches between first imaging (low resolution) and second imaging (high resolution) depending on whether the target person has been initially detected and what level of detail is required for current processing needs.
2Measurement precision
If high-resolution camera is used for behavior recognition, then recognition accuracy is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic switching between two imaging modes with different resolutions. The system adapts its imaging characteristics in real-time based on the recognition progress and requirements, rather than operating at fixed high resolution continuously.
Solution Approach 2:
The imaging resolution parameter is changed dynamically between first imaging (lower resolution) and second imaging (higher resolution) based on the specific needs of each recognition stage, optimizing the balance between accuracy and power consumption.
3Measurement precision
If continuous capturing is performed for a certain period to recognize movement locus, then behavior recognition accuracy is improved, but power consumption increases
Solution Approach 1:
The patent employs periodic action by alternating between first imaging and second imaging based on the recognition progress. High-resolution imaging is performed periodically only when needed for detailed analysis, rather than continuously, reducing overall power consumption while maintaining recognition accuracy.
Solution Approach 2:
The capturing process is segmented into phases: initial detection using first imaging, followed by detailed tracking using second imaging only when the target enters the detailed recognition area. This segmentation eliminates unnecessary continuous high-resolution capturing.
Data Source
AI summary
A vehicle control device includes: a first behavior mode recognition unit that executes a first behavior mode recognition process of recognizing a first behavior mode of a target person based on an image captured by a first camera having a first resolution; a second behavior mode recognition unit that, when a distance between the vehicle and the target person is equal to or less than a predetermined distance, recognizes a second behavior mode of the target person based on an image captured by a second camera having a second resolution higher than the first resolution; a target person behavior recognition unit that recognizes a behavior of the target person against a vehicle based on the first behavior mode and the second behavior mode; and a control unit that executes predetermined control on the vehicle based on the behavior of the target person.