Pedestrian Warning Timing Control via Stopping Time Prediction
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Solution Overview
Problem
Existing systems lack an efficient method to predict and adjust the timing of warning transmissions to pedestrians based on their individual stopping times, which is crucial for ensuring safety in traffic scenarios.
Innovation Solution
The proposed assistance system utilizes a combination of sensors and data structures to predict the location of pedestrians and vehicles, and adjusts the timing of warning transmissions based on the stopping required time of each pedestrian, which is calculated from historical data and real-time sensor inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning transmission timing is fixed for all pedestrians, then system complexity is reduced, but safety is compromised due to individual differences in stopping time
Solution Approach 1:
The system performs preliminary measurement of each pedestrian's stopping time in advance through sensors that detect when a pedestrian steps on a crossing line and when they stop. This pre-acquired information is stored and later used to individually customize warning transmission timing, allowing the system to adapt to individual differences without complex real-time adjustments
Solution Approach 2:
The system establishes a feedback loop where pedestrian stopping behavior is continuously measured by sensors, the data is stored in a database, and this information feeds back into the warning transmission control algorithm. This enables the system to learn from actual pedestrian behavior and optimize warning timing based on real-world data
2Reliability
If warning is transmitted earlier to ensure safety, then pedestrian safety is improved, but unnecessary warnings increase causing loss of time and reduced efficiency
Solution Approach 1:
The system dynamically changes the warning transmission timing parameter based on the measured stopping time of each specific pedestrian. Instead of using a fixed time margin, the system calculates optimal warning timing by adding only the necessary time buffer to each pedestrian's actual stopping time, thereby minimizing unnecessary early warnings while ensuring safety
Data Source
AI summary
An assistance control apparatus comprises an information acquisition unit that acquires information indicating distance or time that a user, who is a traffic participant, moves after a user terminal associated with the user outputs a warning until movement of the user stops, a storage control unit that performs control for storing movement information indicating the distance or time that the user moves after the user terminal outputs a warning until movement of the user stops, based on the information acquired by the information acquisition unit, and a warning control unit that causes the user terminal to output a warning, wherein the warning control unit adjusts timing to cause the user terminal to output the warning based on the movement information stored by control of the storage control unit.