Vehicle Accident Notification Retransmission Across Multiple Networks
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Solution Overview
Problem
Existing vehicle accident notification systems fail to reliably notify authorities and emergency contacts when an airbag is deployed, especially in situations where wireless network connectivity is down or unreliable, and do not effectively integrate vehicle location sharing services with accident notifications.
Innovation Solution
A device and method that utilize a communication device equipped in vehicles to transmit and retransmit notifications of airbag deployment through multiple communication mediums, such as HTTP, SMS, and call connections, based on signal strength, and link accident notifications with vehicle location sharing services to ensure successful delivery of emergency alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system uses a single communication medium for accident notification, then the device complexity is low, but the reliability of notification delivery deteriorates when network connectivity fails
Solution Approach 1:
The communication system is segmented into multiple independent communication mediums (HTTP connection, SMS connection, call connection) with different priorities. Each medium operates independently to transmit accident notification messages, ensuring that failure of one medium does not prevent notification delivery through other mediums.
Solution Approach 2:
The notification system is designed to perform multiple communication functions through a single integrated device. The communication device can switch between HTTP messaging, SMS sending, and call initiation based on network conditions, making the system universally capable of delivering notifications through various channels.
2Reliability
If the system retransmits notifications multiple times to improve delivery success rate, then the reliability improves, but the loss of time increases due to repeated transmission attempts
Solution Approach 1:
The system dynamically adjusts the number of retransmission attempts based on signal quality metrics (SNR). When signal quality is good, the system performs more retransmission attempts to ensure delivery. When signal quality is poor, the system reduces retransmission attempts to minimize time loss, creating a dynamic balance between reliability and time efficiency.
Solution Approach 2:
The system uses feedback from signal quality measurements (SNR values) to control the retransmission process. The controller continuously monitors communication conditions and adjusts transmission strategies based on this feedback, optimizing the balance between delivery success rate and time consumption.
3Adaptability or versatility
If the system integrates location sharing service with accident notification, then the adaptability and information completeness improve, but the device complexity increases
Solution Approach 1:
The location sharing service is merged with the accident notification system. When an accident is detected, the system automatically combines accident notification messaging with current location information and transmits them together through selected communication mediums, providing comprehensive emergency information in a unified process.
Data Source
AI summary
A device and method are configured to provide a notification of an occurrence of a vehicle accident when an airbag is deployed. The device acquires an intensity of a signal received from a server for at least one communication medium, transmits a notification including information on an occurrence of an accident to the server when an airbag of a vehicle is deployed, and retransmits the notification based on the intensity of the received signal when the transmission of the notification has failed. When the transmission of the notification including the information on the occurrence of the accident has failed because a wireless network communication is not operating correctly, wireless communication connection may be reattempted the appropriate number of times to increase a success rate.