Vehicle Notification Device for Green Wave Traffic Safety
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Solution Overview
Problem
Drivers of nearby vehicles may not understand the behavior of vehicles receiving driving assistance, such as green wave driving, leading to potential near-end accidents due to unfamiliarity with the controlled acceleration or deceleration patterns, which can cause discomfort and unsafe driving practices.
Innovation Solution
A notification device mounted on vehicles that acquires information about driving assistance and outputs notifications to other vehicles through a radio unit, broadcasting packet signals to inform drivers of vehicles under green wave control, thereby reducing misunderstandings and accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If driving assistance systems automatically control vehicle speed for green wave passing, then fuel efficiency and traffic flow are improved, but nearby drivers cannot understand the vehicle's behavior and may cause near-end accidents
Solution Approach 1:
The patent introduces a notification device as an intermediary that transmits information about the driving assistance system's operation to nearby vehicles. This mediator bridges the information gap between the controlled vehicle and surrounding drivers, allowing them to understand the automated speed adjustments without compromising the system's productivity benefits
Solution Approach 2:
The system segments information transmission by sending specific notification signals (such as packet signals via radio unit) that divide complex driving assistance operations into understandable discrete messages for other drivers, making the automated behavior comprehensible without reducing overall system efficiency
2Use of energy by moving object
If driving assistance systems control vehicle speed automatically, then energy consumption is reduced, but drivers of nearby vehicles may feel offended and drive dangerously
Solution Approach 1:
The notification device implements preliminary anti-action by alerting nearby drivers in advance about the automated speed control operations. This preemptive information sharing prevents misunderstandings and potential dangerous reactions before they occur, while maintaining the energy efficiency benefits of automated green wave passing
Solution Approach 2:
The system uses a notification device as an intermediary to communicate the rationale behind automated speed changes to surrounding drivers. This mediator transforms potentially harmful misunderstandings into informed awareness, reducing dangerous driving reactions while preserving energy consumption advantages
3Reliability
If notification signals are transmitted to nearby vehicles, then driver understanding and safety are improved, but communication system complexity increases
Solution Approach 1:
The notification device leverages existing multi-functional vehicle systems (such as radio communication units already present for other purposes) to transmit safety notifications. This universal approach improves traffic safety without requiring entirely new specialized communication infrastructure, thereby limiting complexity increases
Data Source
AI summary
An application processing unit executes an application that is perforated as a notification device mounted in a vehicle. In the application processing unit, an input unit acquires information indicating that the vehicle is receiving driving assistance. In the application processing unit, an output unit outputs notifications to other vehicles in accordance with the information that has been acquired at the input unit.