Roadside Unit Height Detection for Vehicle Collision Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing roadside communication systems fail to effectively prevent collisions between vehicles larger than the height restriction on certain bridges by relying on driver recognition, which can lead to incorrect assessments and accidents.
Innovation Solution
A roadside unit equipped with a communication unit and a controller that wirelessly communicates with vehicles, determines their size using sensors, and transmits warning information when the vehicle's height exceeds the set reference value, ensuring drivers are alerted before approaching restricted sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If driver recognition is used to identify height restrictions, then system complexity is reduced, but measurement precision and reliability deteriorate leading to incorrect assessments and collisions
Solution Approach 1:
The patent introduces an intermediary system consisting of roadside units with sensors and communication devices that mediate between the height restriction infrastructure and the driver. The roadside unit detects vehicle height using sensors, determines if the vehicle exceeds the reference height value, and communicates warning information to the driver, thereby eliminating the need for direct driver recognition while ensuring accurate height assessment
Solution Approach 2:
The patent replaces the mechanical/visual recognition system (driver visually identifying height restrictions) with an automated sensor-based detection system. The roadside unit uses sensors to detect vehicle height, processes the data to determine if it exceeds the reference value, and transmits warning information through communication devices, substituting human visual recognition with automated electronic detection
2Reliability
If automated size detection is implemented using sensors and communication systems, then measurement precision and safety are improved, but device complexity increases
Solution Approach 1:
The patent divides the height restriction monitoring system into separate functional segments: a sensor unit for detecting vehicle height, a processing unit for determining if the vehicle exceeds the reference height value, and a communication unit for transmitting warning information. This segmentation allows each component to perform its specific function independently, improving overall system reliability while managing complexity through functional separation
Solution Approach 2:
The roadside unit is designed as a multi-functional device that combines sensing, processing, and communication capabilities in a single integrated system. The same roadside unit can serve multiple vehicles and handle various aspects of height restriction monitoring, reducing the need for multiple separate systems and managing complexity through universal functionality
Data Source
AI summary
A roadside unit comprises a communication unit and a controller. The communication unit wirelessly communicates with a vehicle. The controller: (i) obtains size information indicating a size of the vehicle; (ii) determines, based on the size information, whether the size is larger than a reference value; and (iii) transmits predetermined information to the vehicle through the communication unit when determining that the size is larger than the reference value.