Cloud-Based Vehicle Accident Detection System
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Solution Overview
Problem
Existing emergency call systems in vehicles may fail to operate effectively during severe accidents due to damage to the vehicle's electronic system or when the accident severity does not match the airbag deployment condition, leading to incomplete or delayed notification of emergency situations.
Innovation Solution
An emergency call service system that collects various vehicle data, including location, speed, and angular acceleration, and transmits it to a cloud server, which determines the occurrence of an accident based on thresholds and communicates with the vehicle terminal to request rescue services when necessary, even if the vehicle is unable to send notifications directly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the emergency call module relies on airbag deployment signal to determine accident occurrence, then the system structure is simple, but the system cannot detect accidents that do not trigger airbag deployment or severe accidents where the electronic system is damaged
Solution Approach 1:
The system segments the accident detection function into two parts: the vehicle terminal collects basic vehicle data (speed, acceleration, steering angle) and the cloud server performs complex analysis to determine accident occurrence. This segmentation allows the vehicle terminal to remain simple while the cloud server handles the sophisticated detection logic using multiple data parameters.
Solution Approach 2:
The cloud server acts as an intermediary between the vehicle terminal and the emergency call center. It receives vehicle data from the terminal, analyzes whether an accident occurred based on multiple parameters (not just airbag signals), and then triggers emergency calls. This intermediary approach enables more reliable accident detection without complicating the vehicle terminal structure.
2Measurement precision
If the vehicle terminal transmits all collected vehicle data continuously to the cloud server, then the cloud server can accurately determine accident occurrence, but the communication bandwidth consumption and data transmission load increase significantly
Solution Approach 1:
The vehicle terminal performs preliminary processing of vehicle data before transmission to the cloud server. It collects and pre-processes data from multiple sensors (speed, acceleration, steering angle) and only transmits relevant data when accident conditions are suspected or at scheduled intervals. This preliminary action reduces unnecessary data transmission while ensuring accurate accident detection data is available.
3Speed
If the emergency call module operates independently in the vehicle terminal, then the response speed is fast, but the system cannot function when the vehicle electronic system or modem is damaged during severe accidents
Solution Approach 1:
The system merges the accident detection function with the cloud server, which has higher reliability and is not affected by vehicle terminal damage. The cloud server analyzes vehicle data to determine accident occurrence and triggers emergency calls, ensuring the system can function even when the vehicle terminal is damaged. This combining approach maintains response effectiveness while improving overall system reliability.
Data Source
AI summary
An emergency call service system for a vehicle and a method therefor are provided. The emergency call service system includes a vehicle terminal configured to collect vehicle data during driving and a server configured to determine whether an accident occurs in a vehicle based on the vehicle data and to request rescue from an emergency call center, when it is determined that the accident occurs in the vehicle.