Vehicle Recognition Device Wiper Control for Camera Obstruction
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Solution Overview
Problem
Current vehicle recognition systems face challenges in maintaining accurate recognition of other vehicles, particularly when unclean substances like raindrops obstruct camera views, leading to decreased recognition accuracy and stability in vehicle control.
Innovation Solution
A vehicle recognition device and control apparatus that utilize a stereo camera system to differentiate between recognizable and unrecognizable states, automatically controlling the wiper to maintain clear camera views and improve recognition accuracy by interpolating distance information from remaining clear images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cameras are used to recognize other vehicles, then recognition accuracy is improved, but recognition stability deteriorates when unclean substances obstruct the camera views
Solution Approach 1:
The system proactively determines transitions from recognizable to unrecognizable states before complete recognition failure occurs. By monitoring camera image quality and detecting the onset of obstruction, the system triggers wiper activation in advance, preventing total loss of vehicle recognition capability
Solution Approach 2:
The system continuously monitors camera images to detect unrecognizable states caused by obstructions, feeds this information back to the wiper controller, and adjusts wiper operation accordingly. This closed-loop feedback ensures the wiper operates precisely when needed to maintain recognition stability
2Device complexity
If manual wiper operation is used, then system simplicity is maintained, but recognition stability deteriorates during obstructed conditions
Solution Approach 1:
The wiper system serves itself by automatically detecting when camera views are obstructed and activating without driver intervention. The system monitors its own operational conditions (camera image quality) and autonomously adjusts wiper operation to maintain vehicle recognition stability
Solution Approach 2:
The patent replaces manual mechanical wiper operation with an automated control system that uses optical sensors (cameras) and electronic control to determine when wiper activation is needed, substituting driver action with an automated sensing and actuation system
Data Source
AI summary
A vehicle recognition device includes a vehicle recognizer and a wiper controller. The vehicle recognizer is configured to determine, upon a first state, whether a transition is made from the first state to a second state. The first state is a state in which a second vehicle is recognizable from captured images obtained from respective cameras provided in a first vehicle. The second state is a state in which the second vehicle is unrecognizable from one or more of the captured images. The one or more of the captured images is obtained from all or a part of the cameras. The wiper controller is configured to automatically control an operation of a wiper of the first vehicle on the basis of an automatic control, when the vehicle recognizer determines that the transition is made from the first state to the second state.