Pedestrian Notification System Driver Inattention Filtering
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Solution Overview
Problem
Current pedestrian notification systems do not effectively differentiate between dangerous driving incidents caused by drivers and pedestrians, leading to unnecessary notifications and reduced safety awareness.
Innovation Solution
A notification system for pedestrians that acquires and distinguishes between danger spots based on historical data of driver inattention, such as sudden braking, speeding, and traffic violations, while excluding incidents not hazardous to pedestrians, and updates danger spot information using vehicle travel data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If notification is provided at all types of dangerous driving spots including those caused by pedestrian inattention, then safety coverage is maximized, but notification accuracy and reliability deteriorate due to false alerts
Solution Approach 1:
The patent segments dangerous driving incidents into two categories: those caused by driver inattention (which trigger notifications) and those caused by pedestrian inattention (which do not trigger notifications). This segmentation allows the system to maintain high notification reliability by filtering out false alerts while preserving safety coverage for the most critical danger spots.
Solution Approach 2:
The patent applies different notification policies to different types of danger spots based on their local characteristics. Instead of uniform notification at all dangerous spots, the system selectively notifies only at spots where driver inattention is the primary cause, thereby improving reliability without significantly reducing safety coverage for the most relevant danger areas.
2Reliability
If notification is provided at spots where all dangerous driving occurred, then comprehensive safety is achieved, but user annoyance increases due to excessive notifications
Solution Approach 1:
The patent extracts and removes incidents caused by pedestrian inattention from the notification scope, retaining only those caused by driver inattention. This extraction reduces the volume of notifications to a manageable level, minimizing user annoyance while maintaining safety assurance for the most critical danger spots.
Solution Approach 2:
The patent applies partial action by providing notifications only for a subset of dangerous driving incidents (those caused by driver inattention) rather than all types. This partial approach ensures sufficient safety assurance for the most important danger spots while avoiding excessive notifications that would cause user annoyance.
3Reliability
If danger spots are defined by all traffic violations, then comprehensive safety monitoring is achieved, but system complexity increases due to multiple data sources
Solution Approach 1:
The patent extracts and focuses on a specific subset of violation data related to driver inattention, filtering out other types of violations caused by pedestrian behavior. This extraction simplifies the data processing system by concentrating on a single, well-defined data source rather than handling multiple complex data sources.
Data Source
AI summary
A notification device for a pedestrian includes: a current position information acquisition section configured to acquire current position information; a danger spot information acquisition section configured to acquire information relating to danger spots at which dangerous driving has occurred in the past; and a notification section configured to provide notification in a case in which a distance between a current position and a danger spot becomes less than or equal to a predetermined threshold value.