Cold Planer Rotor Location Indication via Camera Feedback
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Solution Overview
Problem
Milling machines, such as cold planers, face challenges in aligning with obstacles or cut lines due to the side plates of the drum housing not being visible from the operator station, making it difficult to determine the cutting rotor's location at varying cut depths.
Innovation Solution
A cutting rotor location indication system is implemented, which includes a camera coupled to the frame to capture images of the side of the machine and cutting surface, and a visual indicator system to display the location of the leading and trailing edges of the cutting rotor on a monitor, using lines, lights, or graduated markings to provide the operator with real-time visual feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the side plates of the drum housing are made visible from the operator station, then the operator can align with obstacles or lines to cut, but the machine structure becomes more complex
Solution Approach 1:
The patent introduces a camera as an intermediary device that captures images of the cutting rotor and surrounding area. The camera is positioned on the machine to provide a visual feed to the operator, allowing the operator to see the side plates and cutting rotor location without physically exposing them from the operator station. This mediator enables alignment capability while maintaining the structural integrity and simplicity of the original machine design.
Solution Approach 2:
The patent creates a visual copy of the cutting rotor and side plate area through camera imaging. Instead of making the actual physical components visible from the operator station, the system captures an optical copy and displays it on a monitor. This allows the operator to view the cutting area and perform alignment operations without modifying the machine's physical structure or exposing hidden components.
2Loss of information
If the cutting rotor location is made visible at varying cut depths, then the operator can determine rotor position, but additional visualization equipment is required
Solution Approach 1:
The patent implements a feedback system where the camera continuously captures images of the cutting rotor and displays them on a monitor in real-time. This visual feedback loop allows the operator to see the cutting rotor's position at any cut depth and make immediate adjustments. The system provides continuous information about rotor location, enabling precise control without requiring complex mechanical measurement devices.
Solution Approach 2:
The patent replaces potential mechanical measurement and indication systems with an optical/electronic visualization system. Instead of using mechanical gauges, dials, or physical indicators to show rotor position, the system uses a camera and digital display to provide visual information about the cutting rotor's location and depth, simplifying the overall system while improving information availability.
Data Source
AI summary
A cold planer can include a frame; an operator station coupled to the frame and including a monitor; a cutting rotor coupled to the frame, the cutting rotor configured to be lowered a selected distance into a surface to define a depth of cut; a conveyor to receive material from the cutting rotor; and a cutting rotor location indication system including: a camera coupled to the frame and oriented to show an area on a side of the frame; and a visual indicator system configured to receive a first image from the camera and display on the monitor a visual image of a location of a leading edge and a trailing edge of the cutting rotor relative to the surface.