Vehicle Wrong-Way Detection Using Segmented Decision Areas
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Solution Overview
Problem
Existing vehicle wrong-way travel detection systems are prone to issuing false warnings due to errors in subject vehicle position information, leading to incorrect determinations of traveling against traffic flow.
Innovation Solution
A vehicle wrong-way travel detection device that utilizes a subject vehicle position detection unit, traveling direction detection unit, map information storage unit, decision-making point setting unit, wrong-way travel decision-making area setting unit, and wrong-way travel decision-making unit to create and manage different types of decision-making areas, such as immediately-effective, standby, and decision-making end areas, to accurately determine if a vehicle is traveling against traffic flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system uses subject vehicle position information to determine whether the vehicle is traveling on a unidirectional road, then wrong-way travel detection can be performed, but false warnings may be issued due to position information errors
Solution Approach 1:
The detection area is divided into multiple zones: a first detection area where wrong-way travel is immediately determined, a second detection area where wrong-way travel is determined based on traveling direction, and a third detection area serving as a transition zone. This segmentation allows the system to differentiate between certain and uncertain detection scenarios, reducing false warnings while maintaining detection accuracy.
Solution Approach 2:
Different detection rules and criteria are applied to different spatial zones around the unidirectional road. The first detection area uses strict position-based determination, the second uses direction-based determination, and the third uses a combination approach. This local differentiation optimizes detection accuracy for each specific scenario.
2Adaptability or versatility
If the system sets decision-making areas for multiple roads connected to a decision-making point, then detection coverage is improved, but system complexity increases
Solution Approach 1:
The wrong-way travel detection device is designed to handle multiple road types (unidirectional roads, two-way roads, highways, general roads) and multiple detection scenarios using a unified detection framework. The same basic detection mechanism is applied universally across different road configurations, reducing the need for separate specialized systems.
Solution Approach 2:
The system pre-establishes decision-making points and associated detection areas based on map information before detection is needed. By preparing the detection framework in advance with predetermined areas and rules, the system reduces real-time computational complexity while maintaining comprehensive coverage.
Data Source
AI summary
A vehicle wrong-way travel detection device includes a map information storage unit where map information is stored, a decision-making point setting unit that sets, based upon the map information stored in the map information storage unit, the connecting point located ahead along a subject vehicle traveling direction as a decision-making point, a wrong-way travel decision-making area setting unit that sets wrong-way travel decision-making areas for at least one of a plurality of roads connected to the decision-making point, and a wrong-way travel decision-making unit that makes a decision, based upon the direction of traffic flow set for a unidirectional traffic road connected to the decision-making point and the subject vehicle traveling direction, as to whether or not the subject vehicle is traveling against the flow of traffic on the unidirectional traffic road.