Truck Rearward Monitoring for Overhead Collision Detection
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Solution Overview
Problem
Existing vehicle monitoring systems fail to accurately determine the possibility of collision with structures located behind and above the vehicle, such as roofs and building floors, due to the lack of height information in captured images.
Innovation Solution
A vehicle rearward monitoring system that includes an object detection unit to detect objects behind and above the vehicle, an object specifying unit to determine the position, size, and velocity vector of the object, and a collision possibility determination unit to assess the risk of collision based on these factors, providing alerts to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a wide-angle camera or perspective image display is used to capture the periphery of the vehicle, then the field of view is improved and more structures are visible, but the height information of structures above the vehicle is lost and collision possibility cannot be determined
Solution Approach 1:
The patent transitions from 2D image capture to 3D spatial understanding by calculating real-world coordinates (X, Y, Z) from image coordinates (u, v) using camera calibration parameters and perspective transformation. This dimensional conversion enables the system to recover height information that was lost in the 2D image plane, allowing accurate determination of structure heights and collision risk assessment.
2Ease of operation
If the vehicle moves backward to avoid collision with structures above, then collision with overhead structures may be avoided, but the driver cannot determine whether backward movement is safe without height information
Solution Approach 1:
The system provides feedback to the driver by calculating and displaying the height of overhead structures relative to the vehicle. By comparing the structure height with the vehicle height, the system enables the driver to make informed decisions about whether to proceed backward or take alternative actions, thereby improving both ease of operation and reliability of collision risk assessment.
Data Source
AI summary
A vehicle rearward monitoring system configured to monitor an object located behind and above a truck, the vehicle rearward monitoring system including: an object detection unit installed in the truck and configured to detect the object located behind and above an upper end of a rear end of the truck; an object specifying unit configured to specify a position, a size and a velocity vector with respect to the truck of the object detected by the object detection unit; and a collision possibility determination unit configured to determine a possibility of collision of the truck with the object detected by the object detection unit from the position, the size and the velocity vector of the object specified by the object specifying unit, and make a driver of the truck recognize the possibility of collision when it is determined that there is the possibility of collision.