Vehicle Abnormality Reporting Device Using Dynamic Vibration Patterns
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Solution Overview
Problem
Conventional vehicle abnormality reporting devices using continuous vibration are ineffective in alerting drivers when they are already in a vibrating vehicle, as the vibrations are often unnoticed.
Innovation Solution
A system comprising a detector to assess the driver's state and vehicle conditions, a judging unit to determine abnormal states, and a vibrating unit that applies varying vibration patterns, frequencies, amplitudes, and intervals to ensure the driver perceives the vibrations, even during vehicle operation, utilizing a control program to manage these parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous vibration is applied to the driver, then the driver can be alerted to abnormality, but the driver in a vibrating vehicle hardly perceives the vibration
Solution Approach 1:
The vibrating device applies vibration intermittently rather than continuously. The control unit determines whether to apply vibration based on detected driver state (e.g., dozing detection), creating periodic on/off cycles that make the vibration perceptible against the background of vehicle operation vibrations.
Solution Approach 2:
The vibration characteristics (frequency, amplitude, pattern) are dynamically adjusted based on the driver's state and vehicle conditions. The system adapts the vibration parameters in real-time to ensure perceptibility while minimizing discomfort, resolving the contradiction between effective alerting and perception threshold.
2Reliability
If vibration is applied to wake up a dozing driver, then driver alertness improves, but continuous vibration causes discomfort
Solution Approach 1:
The system applies vibration in periodic intervals rather than continuously. When the driver is detected to be dozing, vibration is applied for a predetermined period, then stopped. This periodic application effectively wakes the driver while avoiding the discomfort of continuous vibration.
Solution Approach 2:
The system applies vibration only when necessary (when dozing is detected) and for a limited duration, rather than continuously. This partial action approach provides sufficient stimulus to wake the driver without excessive vibration that would cause discomfort.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reports abnormalities to the driver by generating easily perceivable vibrations, even when the driver is already in a vibrating vehicle, enhancing alertness without causing discomfort, and can adapt to vehicle speed and white-line deviation scenarios.
Implementation Method 1
the vibrating unit is equipped with a speaker for converting an electrical signal to the vibration
Data Source
AI summary
There are provided an abnormality reporting device that can generate vibration which can be easily perceived by a driver even when the driver is in a vibrating vehicle during running, and a control program therefore. The abnormality reporting device is equipped with a detector 2 for detecting the state of a driver 10 or the state of a vehicle 20 as a prescribed state when the vehicle 20 is moving, a judging unit 4 for judging on the basis of the detection result of the detector 2 whether it is under an abnormal state, and a vibrating unit 8 for applying vibration of a predetermined vibration pattern to the driver 10 when the abnormality state is judged, and the vibrating unit 8 can apply the vibration while varying the vibration pattern when the abnormality state is continued.