Vehicle Emergency Detection via Sensor Fusion and Roadside Verification
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Solution Overview
Problem
Current vehicle technologies, such as V2X, have limited detection ranges and effectiveness in recognizing emergency situations, necessitating the development of a system that can accurately detect and rapidly notify emergency situations to roadside units and rescue centers.
Innovation Solution
A vehicle emergency situation detecting system comprising a sensor unit with speed, wheel, acceleration, lateral acceleration, yaw rate, and tilt sensors, an emergency situation determining unit, and a communication unit that creates and transmits emergency situation messages to external devices, including roadside units and rescue centers, within a predetermined standby time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If V2X technology is used to detect emergency situations, then the detection range is expanded, but the detection precision and reliability are limited
Solution Approach 1:
The system segments the detection function into two parts: V2X technology provides wide-area emergency situation detection, while roadside units provide precise verification of the detected situations. This segmentation allows the system to maintain both wide detection range and high detection precision simultaneously.
Solution Approach 2:
Roadside units serve as intermediaries between vehicles and the central management system. They verify emergency situations detected by V2X technology, thereby improving the overall reliability and precision of emergency detection while maintaining the expanded detection range provided by V2X.
2Loss of time
If emergency situations are notified immediately upon detection, then the response time is reduced, but false alarms may increase
Solution Approach 1:
The system performs preliminary verification of emergency situations by roadside units before final notification. This preliminary action allows the system to maintain rapid response times while reducing false alarms through pre-notification verification.
Solution Approach 2:
The system implements a feedback mechanism where roadside units verify detected emergency situations before final notification. This feedback loop ensures that only verified emergencies are notified, reducing false alarms while maintaining rapid response through the pre-established verification process.
3Reliability
If multiple sensors are used to detect emergency situations, then the detection reliability is improved, but the device complexity increases
Solution Approach 1:
Roadside units act as intermediaries that consolidate and verify data from multiple vehicle sensors. This approach maintains high detection reliability through multi-sensor input while reducing individual vehicle system complexity by offloading verification functions to roadside infrastructure.
Data Source
AI summary
An apparatus for detecting an emergency situation of a vehicle comprises a sensor unit, an emergency situation determining unit and a communication unit. The sensor unit constitutes with one or more of a speed sensor, a wheel sensor, an acceleration sensor, a lateral acceleration sensor, a yaw rate sensor, and a tilt sensor. The emergency situation determining unit receives a signal from the sensor unit and determines whether a driver's vehicle is in an emergency situation. The communication unit creates at least one of an emergency situation message representing the emergency situation of the driver's vehicle and a release message representing the release of the emergency situation according to the determination result of the emergency situation determining unit, transmits the message to an external emergency situation propagation device, and allows the emergency situation propagation device to propagate an emergency propagation state of the driver's vehicle to the outside.