Vehicle Emergency Alert Communication With Acknowledgment Feedback
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Solution Overview
Problem
Existing vehicle emergency reporting systems fail to effectively prevent secondary collisions by not providing timely and reliable information to succeeding vehicles about emergencies such as collisions, leading to potential collisions with stopped vehicles or escaping occupants.
Innovation Solution
An emergency reporting device equipped with an emergency detector and communicator that automatically transmits emergency information to outside vehicles and receives acknowledgment, allowing succeeding vehicles to take necessary precautions before arriving at the scene, thereby reducing the risk of secondary collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If emergency information is transmitted to succeeding vehicles, then the reliability of emergency reporting is improved, but the device complexity increases due to acknowledgment reception functionality
Solution Approach 1:
The communicator receives acknowledgment information from succeeding vehicles to confirm that emergency information was successfully transmitted and received. This feedback mechanism ensures reliable communication by verifying that the emergency alert reached its destination, thereby improving reporting reliability while justifying the added complexity through enhanced system trustworthiness.
2Loss of information
If acknowledgment information is received from succeeding vehicles, then the loss of information is reduced, but the loss of time increases due to additional communication steps
Solution Approach 1:
The system transmits emergency information immediately upon detecting an emergency condition, without waiting for acknowledgment from succeeding vehicles. The acknowledgment reception occurs in parallel or after the primary transmission, ensuring that critical emergency alerts are sent out without delay while still capturing delivery confirmation information when available.
3Productivity
If the communicator transmits emergency information to outside vehicles, then the productivity of emergency response is improved, but the use of energy increases due to continuous communication operations
Solution Approach 1:
The communicator operates in a periodic manner, transmitting emergency information only when an emergency condition is detected by the emergency detector. During normal operation, the communication system remains inactive or in low-power mode, consuming minimal energy. When an emergency occurs, the system activates to transmit alerts and receive acknowledgments, then returns to idle state, thus balancing emergency response productivity with energy conservation.
Data Source
AI summary
An emergency reporting device for a vehicle includes an emergency detector and a communicator. The emergency detector is configured to detect or estimate an emergency including a collision of the vehicle. The communicator is configured to, when the emergency of the vehicle is detected or estimated, transmit information related to the emergency to outside so that a succeeding vehicle receives the information related to the emergency. The communicator is configured to, after the information related to the emergency is transmitted, receive acknowledgment information from the succeeding vehicle about reception of the information related to the emergency.