Paver Image Generation Apparatus Blind Spot Management
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Solution Overview
Problem
Existing operator assistance apparatuses for asphalt finishers only allow operators to view blind areas around the hopper, failing to provide a comprehensive view of surrounding areas, which limits their ability to safely and effectively operate the equipment.
Innovation Solution
A paver-mounted image generation apparatus that uses multiple cameras to capture and process images from various angles, generating an output image that includes blind areas around the asphalt finisher, allowing operators to view a combined, distortion-corrected panorama of their surroundings on a display unit within the cab.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple cameras are used to capture images from various angles, then the coverage of blind areas is improved, but the device complexity increases
Solution Approach 1:
The monitoring area is segmented into multiple zones (hopper area, left side area, right side area, front area) and each zone is captured by a dedicated camera. This segmentation allows comprehensive coverage of all blind areas while maintaining a manageable system complexity by assigning specific functions to each camera component.
2Loss of information
If multiple camera images are combined into a panorama, then the information completeness is improved, but the image processing complexity increases
Solution Approach 1:
Multiple images from different cameras capturing different blind areas are merged into a single composite panorama image. This merging process integrates information from all camera sources (hopper camera, left side camera, right side camera, front camera) to provide complete surrounding awareness in one unified visual display.
Solution Approach 2:
A control unit acts as an intermediary that receives images from multiple cameras, performs coordinate transformation and panorama synthesis, and outputs the composite image to the display unit. This intermediary processing layer manages the complexity of image integration while providing a simplified unified output to the operator.
3Ease of operation
If the monitor displays images at a position visible from the operator seat, then the ease of operation is improved, but the viewing angle coverage is limited
Solution Approach 1:
The mechanical limitation of the operator's physical viewing position is replaced by an electronic image processing system. The control unit performs coordinate transformation to generate a panorama image that represents a 360-degree view, substituting the need for the operator to physically move to different positions with a computational geometry transformation that provides omnidirectional awareness on a fixed display.
Data Source
Figure 1
Figure 2(A)~2(C)
Figure 3
AI summary
A paver-mounted image generation apparatus (100) generates an output image based on input images captured by multiple cameras (2) mounted on an asphalt finisher (60) including a tractor (61), a hopper (62), and a screed (63). The output image includes a hopper image (HG), a left-side surrounding image (LG), a right-side surrounding image (RG), and an illustration image (61CG). The paver-mounted image generation apparatus (100) arranges the hopper image (HG), the left-side surrounding image (LG), the right-side surrounding image (RG), and the illustration image (61CG) such that the output image represents a downward view of the asphalt finisher (60).