Tree Cutting Sequence Guidance Based on First-Cut Geometry
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Solution Overview
Problem
During tree cutting sequences, forestry workers face challenges in ensuring safety and preventing undesired damage to the tree, such as unexpected falling or splitting, due to difficulties in accurately executing subsequent cuts based on the initial cut's course.
Innovation Solution
A method and system that automatically identify the course of the first cut, precalculate the ideal course of the second cut, and output cutting information to guide the execution of the second cut, using techniques like optical identification, photogrammetry, and inertial measurement, to improve safety and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual cutting sequences are executed without assistance, then the operation is simple and quick, but safety is reduced and undesired damage to the tree may occur
Solution Approach 1:
The patent introduces an intermediary assistance system that includes identification means to detect the first cut course, precalculation means to compute the ideal second cut course, and output means to provide cutting information to the forestry worker. This intermediary system mediates between the worker and the tree, enabling precise cut execution without requiring the worker to directly handle complex measurements and calculations, thus improving safety while maintaining operational simplicity
Solution Approach 2:
The system performs preliminary identification of the first cut course and preliminary precalculation of the ideal second cut course before the actual second cut is executed. This preliminary action allows the forestry worker to receive preprocessed cutting information in advance, reducing on-site decision-making complexity and improving execution safety without requiring complex real-time processing during the cutting operation
2Manufacturing precision
If the ideal course of the second cut is not accurately determined based on the first cut, then the cutting process is faster, but undesired damage to the tree such as splitting or unexpected falling occurs
Solution Approach 1:
The patent replaces manual mechanical measurement and calculation methods with automated identification means (optical or inertial sensors) and electronic precalculation means. This substitution eliminates time-consuming manual measurements and complex geometric calculations, achieving high precision in determining the second cut course while minimizing time loss through automated processing
Solution Approach 2:
The system creates a digital copy or representation of the first cut course through identification means, then uses this copied information as the basis for precalculating the ideal second cut course. This copying approach allows rapid reproduction and analysis of cut geometry without physical remeasurement, improving both precision and efficiency
3Measurement precision
If manual identification of the first cut course is performed, then the system is simpler, but measurement precision is insufficient leading to unsafe cutting sequences
Solution Approach 1:
The patent introduces an intermediary identification system that acts as a mediator between the physical first cut and the digital representation needed for precalculation. This intermediary uses automated sensors (optical or inertial) to objectively measure and record the cut course with high precision, eliminating the imprecision of manual methods while containing complexity within the identification module rather than the entire system
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enhances safety by reducing the risk of tree-related injuries and damage, allowing for more precise and controlled cutting sequences that maximize economic profit from the tree.
Implementation Method 1
using optical identification, in particular in combination with photogrammetry
Implementation Method 2
in particular in combination with photogrammetry
Implementation Method 3
using inertial measurement
Data Source
AI summary
A method assists during execution of a sequence of cuttings in a tree, wherein, during a cutting sequence, a first cut in the tree is followed by a second cut in the tree At least a part of an ideal course of the second cut depends on at least a part of a course of the first cut. The method includes the steps of: identifying at least the part of the course of the first cut in the tree; precalculating at least the part of the ideal course of the second cut in the tree based on the identified part of the course of the first cut; and outputting cutting information for executing the second cut based on the precalculated part of the ideal course of the second cut.