Driver Abnormality Detection Device with Escalating Notifications
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Solution Overview
Problem
Existing driver abnormality detection systems fail to appropriately respond to serious driver abnormalities, as drivers may believe they can continue driving and neglect to perform necessary switch operations, leading to inadequate risk avoidance measures.
Innovation Solution
A driver abnormality detection device that performs multiple notifications and input periods, allowing the driver to respond appropriately, with escalating notifications and vehicle control processes if no valid input is detected within set time frames, including first, second, and third input periods, to ensure safe vehicle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single notification and input period are used, then the system is simple and fast, but the driver may neglect to respond and risk avoidance is inadequate
Solution Approach 1:
The notification process is divided into multiple stages (first notification, second notification, third notification) with progressively longer input periods. Each stage has distinct notification methods and response time requirements, segmenting the single response opportunity into multiple chances for driver acknowledgment.
Solution Approach 2:
The system performs preliminary notifications and sets multiple input periods in advance before executing risk avoidance measures. The first notification with its input period is established before any risk avoidance action, allowing the driver multiple opportunities to respond before the system intervenes.
2Reliability
If multiple notifications and input periods are implemented, then driver response reliability improves, but the system complexity and response time increase
Solution Approach 1:
The notification method and input period duration dynamically adapt based on the driver's response status. The system transitions from the first notification to the second notification with a longer input period only if the driver fails to respond to the initial notification, making the complexity conditional rather than fixed.
Solution Approach 2:
The system changes parameters such as notification intensity, input period length, and notification method (visual, auditory, haptic) across different stages. Each subsequent notification uses modified parameters to increase driver attention while maintaining a structured timeline for risk avoidance execution.
3Speed
If the first input period is short, then the system responds quickly, but the driver may not have sufficient time to react to serious abnormalities
Solution Approach 1:
The system uses periodic notifications with increasing intervals between them. The first notification has a shorter input period for quick responses, while subsequent notifications have progressively longer input periods, creating a periodic pattern that balances speed and driver reaction time.
Data Source
AI summary
A driver abnormality detection device detects an abnormality in a driver of a vehicle. A first notification is performed in response to detecting the abnormality. It is determined whether a first input by the driver has been detected in a first input period set after a start of the first notification. A second notification is performed in response to determining that the first input has been detected in the first input period. It is determined whether a second input by the driver has been detected in a second input period set after a start of the second notification. A first abnormality condition process is executed in response to determining that the first input has not been detected in the first input period. A second abnormality condition process is executed in response to determining that the second input has not been detected in the second input period.