Vehicle Emergency Call System Autonomous Service Selection
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Solution Overview
Problem
Existing vehicle emergency call systems require a control center or central server to send emergency signals, which may not be available in all countries or regions, limiting their effectiveness.
Innovation Solution
A method and system that detects emergency situations using vehicle sensors, determines the vehicle's position, retrieves and prioritizes emergency response services from a database, and establishes a connection to the closest available service without relying on a central server, using a processor to calculate costs and select the most efficient route for emergency response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a control center or central server is used to send emergency signals, then the emergency call system can be standardized and managed centrally, but the system becomes unavailable in countries or regions where such infrastructure is not available
Solution Approach 1:
The vehicle's onboard system autonomously determines its position using GPS, queries emergency response services directly via database and network connection, calculates travel times, and selects the nearest service without requiring a central control center to mediate the emergency call
Solution Approach 2:
The system divides the emergency call function into independent modules: position determination, database querying, cost calculation, and service selection, allowing each function to operate independently without requiring a centralized infrastructure
2Loss of information
If a central server is used to forward emergency calls, then the system can provide comprehensive emergency response information, but the system requires internet connectivity and centralized infrastructure that may not be available in all regions
Solution Approach 1:
The system pre-loads emergency response service database entries into the vehicle's onboard memory before an emergency occurs, so that when an emergency happens, the system can immediately query and select services without requiring real-time internet connectivity or external server access
3Loss of time
If the system automatically selects the nearest emergency response service, then the response time is minimized, but the system requires complex cost calculation and route determination algorithms
Solution Approach 1:
The system changes the parameter representation by using a simplified cost metric that combines travel time and distance calculations, allowing the processor to efficiently compare different emergency response services and select the optimal one without complex multi-criteria decision algorithms
Data Source
AI summary
Techniques for automatically sending an emergency signal by means of a system of a vehicle are provided. According to one technique, an emergency situation is detected by evaluating signals of a number of sensors. A current position of the vehicle then determined, and a plurality of entries of emergency response services are received. A minimum cost is determined from the costs associated with respective entries of the plurality of entries to the current position of the vehicle, and a first-priority entry is determined from the minimum cost. An address for sending the emergency call signal is received, where the address is included in the first-priority entry. The retrieved address is used to start a setup of a connection to a device of the emergency response service.