Track Tamping Machine Dual-Camera Imaging for Remote Positioning
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Solution Overview
Problem
Existing track maintenance machines lack comprehensive, unobstructed real-time imaging for remote control of tamping units, leading to inefficiencies in positioning and operation.
Innovation Solution
A dual-camera system with overlapping image sections and geometric alignment is used to provide a merged image of the track area, combined with lighting and sensor inputs to enhance positioning accuracy and visibility, allowing remote control of the tamping unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single camera system is used to image the track area, then the device complexity is reduced, but the imaging coverage is obstructed by the tamping unit components
Solution Approach 1:
The imaging system is divided into multiple camera systems (first camera system upstream and second camera system downstream) that each capture different portions of the track area. This segmentation allows the imaging coverage to extend beyond what a single camera could achieve without obstruction from the tamping unit components.
Solution Approach 2:
The camera systems are arranged in different spatial positions (upstream and downstream of the tamping unit) to capture images from multiple perspectives. This multi-dimensional arrangement enables comprehensive coverage of the track area including regions that would be hidden from a single viewpoint.
2Loss of information
If multiple camera systems are arranged to cover the entire track area, then the imaging coverage is improved, but the device complexity increases
Solution Approach 1:
The image sections from multiple camera systems are merged into a single composite image that provides a comprehensive view of the entire track area. This merging process integrates the information from different camera perspectives while presenting a unified image to the operator, reducing the perceived complexity.
Solution Approach 2:
The control unit acts as an intermediary that receives image sections from multiple camera systems, processes them through geometric transformation and merging algorithms, and outputs a unified composite image. This intermediary processing simplifies the complexity by automatically handling the integration of multiple image sources.
3Area of stationary object
If camera systems are positioned to avoid obstruction, then the imaging coverage is improved, but the positioning precision of the tamping unit relative to the track is reduced
Solution Approach 1:
The control unit performs geometric transformations on the image sections based on the known positions of the camera systems and the tamping unit. This feedback mechanism continuously calculates and updates the position of the tamping unit relative to the track features in the merged image, maintaining high positioning precision despite the distributed camera arrangement.
Data Source
AI summary
The invention concerns a track maintenance machine for tamping a track having sleepers supported in a ballast bed with rails fitted to the same, with a machine frame that is mobile on on-track undercarriages and with a tamping unit. Wherein a camera for transmitting real-time images to an output means is arranged upstream of the tamping unit in a working direction. A first camera system is arranged upstream of the tamping unit in working direction here for recording a first surface area of the track as a first image section. In addition, a second camera system is arranged downstream of the tamping unit in working direction for recording a second surface area of the track as a second image section, wherein the recorded image sections partly overlap and wherein the output means is equipped for issuing the image sections in a merged image.