Crane Image System Composite View Blind Spot Elimination
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Solution Overview
Problem
Conventional bird's-eye-view image systems for mobile cranes suffer from blind spots due to the exclusion of the near vicinity, traveling body, and rotating base from the camera's capturing range, necessitating manual visual recognition by operators.
Innovation Solution
An image processing device connected to cameras on a mobile crane generates a composite image by combining bird's-eye-view images from vehicle body cameras with supplementary images from an upper camera, filling in missing parts to provide a comprehensive view of the crane's entire circumference and vicinity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If cameras are provided in the traveling body and rotating base to generate bird's-eye-view images, then the field of view is expanded, but blind spots remain in the vehicle body and near vicinity
Solution Approach 1:
The patent combines multiple image sources (bird's-eye-view images from vehicle body cameras and upper images from overhead cameras) to create a composite image that merges the advantages of both views, eliminating blind spots while expanding the overall field of view
Solution Approach 2:
The patent divides the imaging system into multiple segments: vehicle body cameras capturing bird's-eye-view images and overhead cameras capturing upper images, then processes and combines these segmented views to form a complete composite image
2Adaptability or versatility
If the operator's seat turns with the rotating base during work, then the operator can view different directions, but the blind spot position and range change continuously
Solution Approach 1:
The system continuously monitors the rotating base angle and automatically adjusts the composite image generation to account for the changing operator position and blind spot location, providing real-time feedback compensation
Solution Approach 2:
The patent implements a dynamic image generation system that adapts to the changing operator seat position by continuously adjusting the composite image based on the current rotating base angle, making the system flexible rather than static
3Area of stationary object
If multiple cameras are used to capture the entire circumference, then the coverage area increases, but the system complexity and image processing difficulty increase
Solution Approach 1:
The patent creates a universal composite image generation system that can handle multiple camera inputs and various operating conditions (traveling and working modes) through a single integrated processing approach, reducing overall system complexity
Data Source
AI summary
An image system is for a crane in which a boom that can be raised and lowered is provided to a vehicle with a rotating base therebetween, and said image system is provided with a plurality of vehicle body cameras provided to the vehicle, an upper camera provided to the boom, a display device, and an image processing device. The image processing device acquires vicinity images of the crane captured by the vehicle body cameras and an upper image of the crane captured by the upper camera, converts the vicinity images into images looking downward from an overhead virtual viewpoint, connects the results, generates a bird's-eye-view image, and uses the display device to display a composite image in which a supplementary image of the upper image corresponding to a missing part in the bird's-eye-view image is superimposed on the missing part.