Infotainment System Emergency Rescue via FM RDS
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Solution Overview
Problem
Existing emergency rescue systems in vehicles rely on commercial mobile communication networks, which may not be available during natural disasters or require separate paid services, limiting their accessibility and usability.
Innovation Solution
An emergency rescue request notification method using an FM radio data system (RDS) that detects vehicle accidents, generates an emergency message, and transmits it over an FM radio channel with the highest receive sensitivity, allowing for safe and cost-effective emergency service delivery without relying on mobile communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing emergency rescue systems use commercial mobile communication networks, then emergency rescue services can be provided with location information, but the service becomes unavailable during natural disasters when mobile networks fail and requires paid subscriptions
Solution Approach 1:
The patent introduces FM radio waves as an intermediary communication medium to transmit emergency rescue requests when mobile communication networks are unavailable. The vehicle's infotainment system modulates emergency information onto FM radio frequencies, enabling communication through a different physical channel that remains operational during disasters.
Solution Approach 2:
The system changes the communication parameter from mobile network protocols to FM radio frequency modulation. By converting emergency data into radio wave signals at specific FM frequencies, the system adapts to environments where traditional mobile communication fails, utilizing the broadcast nature of radio waves for reliable transmission.
2Reliability
If vehicles are equipped with communication modems for emergency rescue services, then emergency communication is enabled, but the device complexity and cost increase
Solution Approach 1:
The patent makes the FM radio transmitter serve multiple functions: normal radio broadcasting and emergency rescue communication. By utilizing the existing FM transmission capability already present in vehicle infotainment systems, the patent eliminates the need for separate dedicated emergency communication hardware, reducing overall system complexity.
Solution Approach 2:
The system uses the vehicle's own existing FM radio transmission equipment to send emergency messages, rather than requiring external or additional specialized devices. The infotainment system's built-in FM transmitter is repurposed for dual use, making the emergency function self-contained within the vehicle's standard equipment.
3Adaptability or versatility
If emergency messages are transmitted over FM radio channels, then service becomes available without mobile network dependency, but the program type of radio channels must be changed to alert listeners
Solution Approach 1:
The system changes the program type parameter of the FM radio channel to a predefined alert value that signals emergency conditions to listeners. This parameter modification allows radio receivers to distinguish emergency messages from normal broadcasting content, enabling automatic alerting functionality through a simple parameter switch.
Data Source
AI summary
An emergency rescue request notification method using an infotainment system and a system therefor are provided. The emergency rescue request notification method in the vehicle includes detecting an accident of the vehicle, collecting information corresponding to the detected accident, generating an emergency rescue request message based on the collected information, searching for an FM radio channel with the highest receive sensitivity, changing and transmitting a program type of the found FM radio channel to a specific value using an FM radio data system (RDS) message, and transmitting the emergency rescue request message over the found FM radio channel.