Vehicle Alert Apparatus Speed-Threshold Drowsiness Detection
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Solution Overview
Problem
Existing vehicle alert systems either fail to alert drivers of drowsiness or inattentiveness or cause unnecessary alerts, leading to driver discomfort, especially in low-speed situations like parking lots.
Innovation Solution
A vehicle alert apparatus that includes a drowse detector, inattention detector, vehicle speed detector, and alert controller, which determines the appropriate alert based on vehicle speed thresholds to minimize unnecessary alerts and ensure driver safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the alert frequency is increased to improve driver safety, then the detection of drowsiness and inattentiveness becomes more reliable, but the driver feels more troublesome with unnecessary alerts
Solution Approach 1:
The patent applies local quality by making the alert notification selective based on the driving situation. The notification portion outputs alerts only when specific conditions are met (vehicle speed above threshold and driver state is drowsy or inattentive), rather than uniformly alerting in all situations. This resolves the contradiction by improving detection reliability for dangerous situations while avoiding unnecessary alerts that would reduce driver comfort.
Solution Approach 2:
The patent implements dynamics by making the alert notification conditional and adaptive to the current driving context. The alert controller dynamically adjusts whether an alert is generated based on real-time vehicle speed and driver state detection. This dynamic approach ensures alerts are provided when truly needed (improving reliability) while suppressing alerts during low-speed maneuvers where they would be unnecessary (maintaining driver comfort).
2Reliability
If alerts are provided for all detected driver states, then driver safety is maximized, but unnecessary alerts occur during low-speed maneuvers causing driver discomfort
Solution Approach 1:
The patent applies preliminary action by establishing a vehicle speed threshold condition before generating an alert. The alert controller checks whether the vehicle speed exceeds the threshold before outputting an alert notification, even when drowsiness or inattentiveness is detected. This preliminary speed check prevents unnecessary alerts during low-speed maneuvers (reducing harmful factors) while ensuring alerts are provided for dangerous high-speed situations (maintaining driver safety).
Data Source
AI summary
A vehicle alert apparatus includes: a drowse detector that detects drowse of a driver; an inattention detector that detects inattention of the driver; a vehicle speed detector that detects the vehicle speed; a notification portion that executes alert for the driver; and an alert controller that controls the alert executed by the notification portion based on a detection result of the drowse of the driver, a detection result of the inattention of the driver, or a detection result of the vehicle speed.