Vehicle Control Device Using Brain Wave Signals for Safety
Solution Overview
Problem
Current vehicle control systems using head-up displays face challenges with gesture recognition distracting drivers, poor voice command accuracy, and issues like insufficient image brightness and reflective halos on windshields, which compromise driving safety.
Innovation Solution
A vehicle control device that extracts brain wave signals to determine unsafe driving states, issuing warnings or controlling deceleration, and includes a head-up display apparatus that adjusts brightness and projects instructions based on user gaze points, using an extraction circuit and control circuit to analyze θ, β, and γ waves, and an ambient light detection system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gesture recognition is used for vehicle control, then hands-free operation is achieved, but driver attention is distracted and safety decreases
Solution Approach 1:
The patent replaces mechanical hand gestures with neural electromagnetic field signals (brain waves). The EEG detection device captures electrical signals from the brain, and the control circuit processes these neural signals to execute vehicle control functions, eliminating the need for manual gestures while maintaining safety.
Solution Approach 2:
The patent introduces brain wave signals as an intermediary between the driver's intent and vehicle control. The EEG detection device and control circuit act as mediators that translate neural electrical signals into control commands, providing a safe hands-free interface that doesn't require visual attention or physical hand movement.
2Reliability
If voice control is used for vehicle operation, then driving safety is improved, but recognition accuracy is poor and user anxiety increases
Solution Approach 1:
The patent replaces acoustic voice recognition with neural signal detection. Instead of processing sound waves that are susceptible to noise and misinterpretation, the system directly detects electrical signals from the brain, providing more accurate and reliable intent recognition without the limitations of voice-based systems.
3Illumination intensity
If head-up display brightness is increased to improve visibility, then image observation is enhanced, but reflective halos and picture ghosting worsen
Solution Approach 1:
The patent changes the optical parameters of the head-up display system by introducing a wedge-shaped transflective film with specific thickness gradient (0.02-2.2 degrees angle). This optical element modifies light reflection and transmission characteristics, enabling the display to achieve sufficient brightness while eliminating reflective halos and picture ghosting through controlled optical path differences.
Data Source
AI summary
The present disclosure provides a vehicle control device, a vehicle control method and a head-up display apparatus. The vehicle control device includes: an extraction circuit used to extract brain wave signals of a user; and a control circuit used to determine whether the user is in an unsafe driving state according to the brain wave signals, and perform at least one of operations including issuing a warning reminder and controlling vehicle deceleration when determining that the user is in the unsafe driving state.