Collision Avoidance System Sensor Fusion
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Solution Overview
Problem
Existing collision avoidance systems face challenges in detecting vehicles beyond the sensor's range and in situations where the number of vehicles exceeds the communication limit, leading to delayed notification and reduced accuracy in collision avoidance.
Innovation Solution
A collision avoidance system that integrates a periphery monitoring system using sensors, an approaching vehicle notifying system for vehicle-to-vehicle communication, and a detected vehicle comparison/determination system to identify common vehicles detected by both systems, thereby enhancing detection accuracy and controlling the systems for effective collision avoidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the periphery monitoring system uses sensors to detect vehicles, then vehicles within sensor range can be detected, but vehicles outside the sensor range cannot be detected
Solution Approach 1:
The patent combines the periphery monitoring system (sensor-based detection) and the approaching vehicle notifying system (communication-based detection) into an integrated collision avoidance system. The determination unit synthesizes detection results from both systems, allowing vehicles outside sensor range to be detected through communication data while maintaining accurate detection of vehicles within range through sensor fusion.
2Quantity of substance
If the approaching vehicle notifying system performs vehicle-to-vehicle communication with multiple vehicles, then more vehicles can be detected, but the upper limit of communication devices causes detection delays when exceeding the limit
Solution Approach 1:
The determination unit acts as an intermediary that manages and prioritizes communication data from multiple vehicles. It selectively processes communication packets based on collision risk assessment, ensuring that even when the number of communicating vehicles exceeds system limits, critical detection information is processed without delay while non-critical data is managed efficiently.
3Adaptability or versatility
If both periphery monitoring system and approaching vehicle notifying system are used separately, then each system has its limitations, but integrating them without comparison leads to redundant information and reduced accuracy
Solution Approach 1:
The determination unit implements a feedback mechanism that continuously compares detection results from the periphery monitoring system and approaching vehicle notifying system. It cross-validates data from both sources, resolving conflicts and confirming detections, thereby maintaining high accuracy while utilizing the complementary strengths of both systems for comprehensive coverage.
Data Source
AI summary
A collision avoidance system includes a periphery monitoring system which detects vehicles in proximity to a subject vehicle by use of a sensor, an approaching vehicle notifying system which communicates with another vehicle in proximity to the subject vehicle in vehicle-to-vehicle communication, and a detected vehicle comparison/determination system which is connected to the periphery monitoring system and the approaching vehicle notifying system, determines common vehicles detected by both the periphery monitoring system and the approaching vehicle notifying system, and controls the periphery monitoring system and the approaching vehicle notifying system.