Emergency Notification Device In-Vehicle Terminal Relay
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Solution Overview
Problem
Emergency notification devices face communication disruptions due to antenna or communication circuit malfunctions during vehicle emergencies, preventing effective communication with emergency notification centers.
Innovation Solution
An emergency notification device with a wireless communication part, a control part, and an in-vehicle communication part that allows communication with a communication terminal within the vehicle to transmit emergency information to a predetermined contact destination even if wireless communication with the emergency notification center is disabled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the emergency notification device uses wireless communication with the emergency notification center, then emergency information can be transmitted to the center, but communication may be disabled due to antenna or communication circuit malfunction during vehicle collision
Solution Approach 1:
The communication function is segmented into two independent paths: (1) direct wireless communication from the emergency notification device to the emergency notification center, and (2) alternative communication through in-vehicle communication terminals (smartphones, tablets) to external destinations. This segmentation ensures that if one path fails due to vibration or impact damage, the other path can still transmit emergency information.
Solution Approach 2:
The system performs beforehand cushioning by pre-storing emergency contact destinations and communication terminal information in the emergency notification device. Before a collision occurs, the system ensures that multiple communication channels are ready, so that when a collision happens and the primary wireless communication fails, the alternative communication path is already prepared and can immediately transmit emergency information without delay.
2Device complexity
If the emergency notification device relies on a single communication channel, then the device structure is simple, but communication fails when the wireless communication part malfunctions
Solution Approach 1:
The emergency notification device is designed with multi-functionality by incorporating both direct wireless communication capabilities and in-vehicle communication terminal integration. The control unit can universally manage multiple communication methods (direct transmission to emergency notification center and transmission to external destinations via in-vehicle terminals), allowing the system to adaptively select the appropriate communication path based on system status, thereby improving reliability without requiring completely separate independent systems.
Data Source
AI summary
An emergency notification device (10) for notifying an emergency notification center (2) of emergency information b from the vehicle (1) in case of vehicle emergency, comprising: a wireless communication part (15) for performing wireless communication with the emergency notification center (2); a control part (11) for controlling the wireless communication part (15) to perform wireless communication with the emergency notification center (2) in case of vehicle emergency; and an in-vehicle communication part (12, 17) for performing communication with a communication terminal (40) in the vehicle; wherein the control part (11) is configured to, in a wireless communication disabled state in case of vehicle emergency, communicate with the communication terminal (40) in the vehicle via the in-vehicle communication part to cause the communication terminal (40) to transmit the emergency information b to a predetermined emergency contact destination.