Vehicle Eye Tracking Voice Command Integration
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Solution Overview
Problem
Existing motor vehicle control systems fail to provide precise and rapid operator control while minimizing driver distraction, especially in noisy vehicle interiors at high speeds, and do not effectively integrate eye tracking and voice recognition for efficient command input.
Innovation Solution
A method and device combining an eye tracker to ascertain the operator's viewing direction and a microphone for acoustic command input, which displays relevant information on a display only when the operator's gaze is focused on the display and a corresponding command is given, ensuring a close temporal relationship between gaze and command input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If voice recognition is continuously active to enable rapid command input, then operator control speed is improved, but false recognition due to background noise increases
Solution Approach 1:
The system performs preliminary action by detecting the operator's viewing direction before processing acoustic commands. The eye tracking function ascertains whether the operator is looking at the display in advance, and only then does the system activate voice recognition processing. This preliminary check prevents false recognition by ensuring the operator is actually intending to issue a command, thereby resolving the contradiction between rapid response and accurate recognition.
2Loss of information
If the display is always visible to provide information, then information availability is improved, but driver distraction increases
Solution Approach 1:
The system uses eye tracking to detect in advance whether the operator is looking at the display. Information is only processed and displayed when the viewing direction is confirmed to be toward the display. This preliminary detection ensures that information is presented only when the operator is ready to receive it, preventing distraction while maintaining information accessibility.
Solution Approach 2:
The system implements feedback by continuously monitoring the operator's viewing direction and using this information to control when acoustic commands are processed and when information is displayed. The eye tracking data provides real-time feedback about operator attention state, allowing the system to adapt its information presentation and command recognition behavior accordingly, thus balancing information availability with driver safety.
3Measurement precision
If eye tracking and voice recognition are integrated to reduce false commands, then command accuracy is improved, but system complexity increases
Solution Approach 1:
The system merges eye tracking and voice recognition functions into a single integrated operating device. The control unit coordinates both functions, using eye tracking data to gate voice recognition processing. This combination improves command accuracy by ensuring only intentional commands are processed, while the integration is achieved through a unified control structure that manages both sensor inputs and output actions.
Data Source
AI summary
In a method for the operator control of a motor vehicle having a display for displaying variable information and having a microphone, the viewing direction of an operator of the motor vehicle is ascertained, it is checked whether the viewing direction of the operator is aimed toward the display, and information assigned to an acoustic command is shown on the display when a corresponding acoustic command is given while the viewing direction of the operator is aimed toward the display.