Vehicle Collision Warning via Central Server Analysis
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Solution Overview
Problem
Current collision warning systems for vehicles are limited in their ability to effectively prevent accidents, as they require all involved vehicles to be equipped with transmitter/receivers, and often leave drivers with little to no freedom of action to avoid collisions, especially when other road users are not equipped with active safety systems.
Innovation Solution
A method and system that detect collision risks using sensors, identify possible avoidance options for both the host vehicle and other road users, and generate warning signals towards the other users if they have the capability to act, thereby increasing the chances of avoiding collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all involved vehicles are equipped with transmitter/receivers for collision detection, then collision detection capability is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent introduces a central server as an intermediary that collects sensor data from vehicles and performs collision risk analysis. This mediator handles the complex computation and data processing centrally, allowing individual vehicles to use simpler sensor equipment while maintaining high collision detection capability through the server's analytical processing.
Solution Approach 2:
Instead of requiring every vehicle to have full transmitter/receiver capabilities, the system uses sensors in each vehicle to detect local conditions and transmits this data to a central server that creates a comprehensive model of the traffic situation. The server then sends back warning signals, effectively copying the complex processing function to a centralized location.
2Reliability
If active safety systems are installed in all vehicles, then accident prevention capability is improved, but manufacturing cost and ease of manufacture worsen
Solution Approach 1:
The central server provides a universal platform that serves multiple vehicles simultaneously, performing collision risk analysis for all connected vehicles. This multi-functional approach allows the system to achieve high accident prevention capability across the entire fleet without each individual vehicle needing expensive active safety systems, as the server handles the complex safety functions for all users.
Solution Approach 2:
The system enables vehicles with basic sensor equipment to access advanced collision prevention capabilities through the central server. Each vehicle independently contributes its sensor data and receives personalized warning signals based on the collective information, allowing the system to provide high-level safety functions without requiring expensive equipment in each vehicle.
3Device complexity
If the system only monitors the host vehicle's own avoidance options, then system complexity is reduced, but collision avoidance effectiveness deteriorates when the host vehicle has limited options
Solution Approach 1:
The system changes the scope of analysis from only the host vehicle's parameters to include parameters of surrounding vehicles and road users. By incorporating data about other vehicles' positions, speeds, and potential actions, the system can identify avoidance opportunities that involve coordinated responses from multiple parties, significantly improving collision avoidance effectiveness while the server handles the increased computational complexity.
Solution Approach 2:
The patent expands the analysis from a single-vehicle perspective to a multi-vehicle system perspective. Instead of only evaluating the host vehicle's avoidance options in isolation, the system analyzes the entire traffic scenario including other vehicles' potential actions, creating a multi-dimensional view of possible avoidance strategies that involves multiple road users working together to prevent collisions.
Data Source
AI summary
A system and method for collision warning in a host vehicle including: detecting a collision risk between the host vehicle and an other user of the road with a detection means based on input from at least one sensor which detects at least one parameter related to the other user of the road with respect to the host vehicle; identifying possible options to avoid a collision between the host vehicle and the other user of the road based on input from the detection means, wherein possible options for the host vehicle to avoid a collision are identified as well as possible options for the other user of the road to avoid a collision are identified; calculating among the identified possible options at least one preferred avoidance action in order to avoid a collision between the host vehicle and the other user of the road; and if the at least one preferred avoidance action involves at least one possible option identified for the other user of the road, then generating a warning signal from the host vehicle in a direction towards the other user of the road in order to warn the other user of the road of the collision risk.