Multi-Sensory Wakefulness Apparatus for Driver Alertness
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Solution Overview
Problem
Conventional sensory stimuli, such as sound, struggle to maintain driver wakefulness effectively as drivers become accustomed to them over time.
Innovation Solution
A wakefulness maintenance apparatus that records and executes in-vehicle presentations combining auditory, visual, tactile, and olfactory stimuli associated with specific scenes, activating higher-order brain functions and reducing habituation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sensory stimuli such as sound are used to maintain driver wakefulness, then the driver can be stimulated initially, but the driver becomes accustomed to the stimulus over time and wakefulness maintenance effectiveness deteriorates
Solution Approach 1:
The system dynamically changes the type of sensory stimulus provided to the driver based on detected wakefulness level. When the driver shows signs of drowsiness, the system switches between different stimulus types (visual, auditory, tactile, olfactory) to prevent habituation. This dynamic adaptation ensures the stimulus remains effective over extended periods.
Solution Approach 2:
The system changes parameters of the sensory stimuli including intensity, frequency, and type of stimulation. By varying these parameters in response to driver state monitoring, the system maintains effectiveness without causing discomfort or habituation, thereby extending the duration of useful action.
2Reliability
If multiple types of sensory stimuli are provided simultaneously, then driver wakefulness can be maintained more effectively, but the system complexity increases
Solution Approach 1:
The system integrates multiple sensory stimulus delivery mechanisms (visual display, audio output, tactile feedback, olfactory release) into a single multi-functional platform. This universal system can provide different types of stimuli through different modules, managing complexity by consolidating control while maintaining diverse output capabilities.
Solution Approach 2:
The system divides the wakefulness maintenance function into separate modular components: visual stimulus module, auditory stimulus module, tactile stimulus module, and olfactory stimulus module. Each module operates independently but is coordinated by a central controller, allowing the system to manage complexity through functional segmentation while providing comprehensive multi-sensory stimulation.
Data Source
AI summary
A wakefulness maintenance apparatus includes a presentation recording unit and a presentation execution unit. The presentation recording unit records in-vehicle presentation contents each including a corresponding one of scenes, an auditory stimulus action associated with the scene, and at least one stimulus action selected from a group of a visual stimulus action, a tactile stimulus action, and an olfactory stimulus action which are associated with the scene. The presentation execution unit executes, based on the in-vehicle presentation contents recorded in the presentation recording unit, an in-vehicle presentation including provision of: the auditory stimulus action associated with the scene, and the at least one stimulus action selected from the group of the visual stimulus action, tactile stimulus action, and olfactory stimulus action which are associated with the scene.