Seatbelt Warning Control for Passenger Seat Changes
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Solution Overview
Problem
Conventional seat belt alert systems in vehicles often issue unnecessary and disturbing alerts when passengers change seats during high-speed driving, leading to prolonged alerts even after the passenger has resecured their seat belt, causing anxiety for the driver and other passengers.
Innovation Solution
A piloting process that deactivates the initial alert if the seat belt is resecured within a first predetermined period and also considers the closure of another seat belt on the same row, providing textual notifications and adjusting alerts to softer modes once the passenger is securely seated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seat belt alert system issues an alert when a seat belt is unfastened during high-speed driving, then passenger safety is ensured, but unnecessary alerts are generated when passengers change seats, causing anxiety and disturbance
Solution Approach 1:
The alert system dynamically adjusts its behavior based on the fastening status of other seat belts in the same row. When another seat belt is fastened within the same row, the system interprets this as a seat change event and deactivates the alert, transforming a static alert system into a dynamic one that adapts to passenger behavior patterns.
Solution Approach 2:
The system uses feedback from detection means monitoring the fastening status of seat belts to automatically deactivate alerts. When detection means sense that another seat belt in the same row is fastened, this feedback triggers alert deactivation, creating a closed-loop control system that responds to real-time passenger actions.
2Reliability
If the alert continues for a predetermined period to ensure safety, then safety monitoring is maintained, but the alert becomes unnecessarily prolonged when all seat belts are eventually fastened, causing continued disturbance
Solution Approach 1:
The system performs preliminary monitoring of other seat belt fastening events within the same row before the original alert period expires. By detecting fastening actions in advance, the system can proactively deactivate the alert, preventing unnecessary prolonged disturbance while maintaining safety monitoring integrity.
Solution Approach 2:
The alert duration becomes dynamic rather than fixed. The system continuously evaluates the fastening status of other seat belts and adjusts the alert termination time accordingly, allowing early deactivation when safety is restored through seat belt fastening, thus optimizing both safety and passenger comfort.
3Measurement precision
If the system monitors only the specific seat that was unfastened, then detection precision is maintained, but it cannot distinguish between a passenger unfastening their belt and a passenger changing seats
Solution Approach 1:
The detection means are extended to monitor not only the specific seat that was unfastened but also other seats in the same row. This multi-functional monitoring capability allows the system to distinguish between different scenarios (unfastening vs. seat change) by analyzing the fastening status pattern across multiple seats, enhancing situation recognition without sacrificing detection precision.
Solution Approach 2:
The fastening status of other seat belts in the same row serves as an intermediary indicator to help interpret the meaning of the unfastening event. By using this additional information as a mediator, the system can infer whether a passenger is unfastening their belt or changing seats, adding contextual understanding to the detection data.
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a method for controlling an unbuckled seatbelt warning device in a vehicle, comprising a step of transmitting a first warning in the passenger compartment of the vehicle (200) during a first predetermined period if it is detected, during a phase of driving the vehicle at a speed greater than or equal to a predefined threshold speed (100), that the safety belt of a seat of the vehicle (110) is unbuckled, the first warning being deactivated before the end of the first predetermined period (400) if it is detected that the belt of the seat (210) has been re-buckled, the first warning also being deactivated before the end of the first predetermined period (500) if it is detected, before the end of a second predetermined period shorter than the first predetermined period, that the seatbelt of another seat of the vehicle located on the same row as the seat (220) has been buckled.