Road Traffic Alarm Re-utterance Control for Driver Distraction
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Solution Overview
Problem
In DSRC road traffic information providing systems using utterance-type vehicle-mounted devices, important alarm information is often output suddenly without considering the driver's focus on driving, leading to a risk of missed alerts due to the lack of integration with navigation systems, which limits the ability to prioritize and manage alarm outputs effectively.
Innovation Solution
A road traffic information providing device that receives alarm information from roadside apparatuses via wireless communication, stores it, and outputs it again through speech based on user operation, using a control unit to manage utterance outputs and prioritize information, ensuring that critical alerts are re-uttered if not initially acknowledged by the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If alarm information is output suddenly without considering driver's focus, then the device can provide timely alerts, but the driver may miss important information due to concentration on driving
Solution Approach 1:
The system performs preliminary actions by storing alarm information and determining priority levels before the driver needs to receive the alert. When alarm information is received, the system pre-processes it by storing in memory and evaluating priority, so that when the driver is ready to receive information, the system can immediately output the most critical alerts without requiring real-time processing during driver attention moments
Solution Approach 2:
The system implements feedback by monitoring driver state (through operation detection) and adjusting alarm output accordingly. When the driver performs operations indicating attention (such as steering corrections or pedal inputs), the system detects this and suppresses or delays alarm output, creating a feedback loop that adapts alert delivery to actual driver focus conditions
2Productivity
If the system outputs all alarm information immediately, then all alerts are delivered promptly, but important information may be lost among less critical alerts
Solution Approach 1:
The system segments alarm information into distinct priority levels (first priority, second priority, etc.) rather than treating all alerts uniformly. This segmentation allows the system to process and output alerts in a structured manner, ensuring that high-priority information receives immediate attention while lower-priority information is managed separately, preventing importance discrimination loss
Solution Approach 2:
The system changes the parameter of information delivery by varying output timing and method based on priority level. High-priority alarms are output immediately with distinctive characteristics, while lower-priority alarms are delayed or output with different characteristics, allowing the driver to distinguish importance through temporal and qualitative parameters rather than receiving all alerts identically
3Reliability
If the system integrates with navigation apparatus, then position-based alarm management is improved, but the device complexity increases
Solution Approach 1:
The system achieves position-based alarm management through multi-functionality by using the operation detection capability (designed for driver state monitoring) also for determining alarm output timing. This universal use of existing detection mechanisms provides navigation-like position awareness without requiring separate navigation apparatus integration, maintaining reliability while avoiding additional complexity
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
This solution allows for simple and effective re-output of alarm information, enhancing the likelihood that drivers receive critical alerts, thereby improving safety by ensuring important information is not missed during driving.
Implementation Method 1
a communication unit that receives alarm information from a roadside apparatus installed on or near a road that a vehicle travels or a parking lot
Implementation Method 2
an audio processing unit that converts the alarm information into speech information to output the speech information in utterance
Data Source
AI summary
A utterance type road traffic information providing system comprises a roadside apparatus (100) installed along a road where vehicles travel, in a parking lot, or near a parking lot and adapted for transmitting alarm information by wireless communication, a utterance type vehicle-mounted device (200) adapted for receiving the alarm information by wireless communication from the roadside apparatus (100) and outputting the alarm information and mounted in the vehicle, and a administration server (300) for communicating various information with the roadside apparatus (100). The utterance type vehicle-mounted device (200) has a predetermined operating unit and a control unit. The control unit provides again a utterance type output from the beginning by sound according to the alarm information supplied from the roadside apparatus (100) when a predetermined operation of the operating unit is made. By a simple method, the alarm information is again confirmed (re-outputted).