Terrain Boundary Extraction via Regular Grid Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods in the wind power industry are unable to automatically extract the outer contour of a discontinuous region in a wind farm, requiring complex processes and inefficient triangulated irregular network (TIN) models.
Innovation Solution
A device and method that divide a terrain region into a regular grid, assign standard values to grid units based on elevation points, and extract terrain boundaries using a grid-based approach, simplifying data analysis and reducing the need for extensive TIN model construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a triangulated irregular network (TIN) is established to extract terrain boundary, then the terrain boundary can be extracted, but the process becomes complex and requires setting minimum constraint side length
Solution Approach 1:
The patent divides the terrain region into a regular grid system with multiple grid units, where each grid unit is independently processed. This segmentation transforms the complex continuous terrain boundary extraction problem into discrete grid unit processing, eliminating the need for TIN establishment and minimum constraint side length settings while maintaining extraction accuracy.
2Manufacturing precision
If conventional TIN method is used for discontinuous region, then outer contour extraction is required for each region separately, but automatic outer contour provision for discontinuous regions is impossible
Solution Approach 1:
The regular grid system serves as a universal framework that handles both continuous and discontinuous terrain regions through the same processing logic. By assigning standard values to grid units based on elevation point containment, the system automatically identifies and extracts outer contours for any region type without requiring separate processing procedures, thereby achieving full automation.
3Ease of operation
If grid data is used instead of TIN and vector data, then positioning becomes clear and search operations are facilitated, but data structure transformation is required
Solution Approach 1:
The patent transforms terrain representation from continuous vector data or TIN structures into a discrete grid parameter system. Each grid unit is characterized by simple parameters (presence/absence of elevation points, standard values), enabling clear positioning through grid coordinates and efficient search operations. This parameter transformation simplifies the data structure while improving operational ease.
Data Source
AI summary
Provided are a device and a method for extracting a terrain boundary, including: a grid creating module configured to divide a region which is determined based on measured contour line data of a target terrain, to form a regular grid including multiple grid units; a data analyzing module configured to assign a first standard value or a second standard value to each of the multiple grid units based on the number of elevation points included in the grid unit, to form a final grid region, where the final grid region is a region including all grid units having the first standard value; and a boundary extracting module configured to extract a terrain boundary based on the final grid region.