Forest Management Device for Risk-Based Tree Felling
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Solution Overview
Problem
Forest fires are difficult to extinguish once they start and can spread rapidly, necessitating a method to prevent their spread, particularly focusing on upper fire spreading from tree trunks and lower fire spreading from grass and ground surfaces.
Innovation Solution
A forest management device that includes a fire specifying unit to identify the fire area, an area determination unit to define a work area outside the fire area with a predetermined width, and a felling instruction unit to instruct forestry machines to fell trees in this area, combined with earthwork machines to create embankments to prevent fire spread.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If trees are felled in a wide area around the fire to prevent fire spread, then fire prevention effectiveness is improved, but the amount of timber loss increases
Solution Approach 1:
The patent applies local quality by determining different work area widths based on the specific fire risk level in different directions. The area determination unit calculates the required work area width by considering fire spreading speed, wind direction, and terrain conditions, creating a non-uniform buffer zone that is wider in high-risk areas and narrower in low-risk areas, thus preventing unnecessary tree felling while maintaining fire prevention effectiveness
Solution Approach 2:
The system performs preliminary action by automatically determining and marking the work area before actual fire prevention operations begin. The area determination unit calculates the precise boundary of the work area based on fire location and spreading risk, allowing authorities to prepare and coordinate tree felling operations in advance, minimizing reactive damage while maintaining preventive effectiveness
2Reliability
If a large work area is designated for tree felling, then fire spread prevention is improved, but the time and resources required for operation increase
Solution Approach 1:
The patent applies dynamics by making the work area determination adaptive and updateable in real-time. As the fire location changes or new fire incidents occur, the area determination unit recalculates the work area boundaries dynamically, allowing the system to adjust the operational scope to match current fire risks, thus avoiding unnecessary operations in areas where fire spread is no longer a threat
Solution Approach 2:
The system implements feedback by continuously monitoring fire location data and using it to adjust work area definitions. The fire location acquisition unit provides real-time feedback on fire positions, which the area determination unit uses to recalculate and update work area boundaries, ensuring that operations are concentrated on areas with actual fire risk rather than static predetermined zones
3Ease of operation
If manual methods are used to determine work areas and select trees for felling, then operational flexibility is maintained, but productivity and response speed decrease
Solution Approach 1:
The patent applies self-service by implementing automated functions that perform tasks traditionally requiring manual intervention. The area determination unit automatically calculates work area boundaries based on fire location data, and the tree selection unit automatically identifies trees within the work area that should be felled, eliminating the need for manual surveying and tree-by-tree assessment, thus dramatically improving response speed while maintaining operational effectiveness
4Reliability
If the work area width is increased to account for all possible fire spread scenarios, then fire prevention coverage is improved, but unnecessary tree felling in low-risk areas increases
Solution Approach 1:
The patent applies local quality by determining different work area widths based on the specific fire risk level in different directions. The area determination unit calculates the required work area width by considering fire spreading speed, wind direction, and terrain conditions, creating a non-uniform buffer zone that is wider in high-risk areas and narrower in low-risk areas, thus preventing unnecessary tree felling while maintaining fire prevention effectiveness
Data Source
AI summary
A fire specifying unit is configured to specify a fire area in which a forest fire has occurred. An area determination unit is configured to determine a work area that is located outside a first range including the fire area and that has a predetermined width. A felling instruction unit is configured to instruct a forestry machine to fell a tree in the work area.