Green and Beautiful Guangdong Ecological Construction Demonstration Zone Digital Twin Application Research

doi:10.13466/j.cnki.lczyyj.2023.05.014

Abstract

Abstract:

In order to build a green and beautiful Guangdong ecological construction digital twin demonstration area,this articleused point cloud generated tree 3D modeling technology to conduct 1∶1 simulation of the core location trees within the demonstration area.Based on high-resolution stereo image data obtained from oblique photography,a high-precision and standard geographic 3D forest scene was constructed by combining 3D models of trees,buildings,and terrain.At the same time,the Internet of Things data from four intelligent comprehensive monitoring points was connected,and expressed in the virtual 3D forest scene,achieving deep integration between the virtual 3D forest scene and the real forest scene.Combined with the forest growth model,the future state of the forest was simulated,and an immersive interactive digital twin system integrating data collection,model establishment,simulation analysis,and future prediction was constructed.A relatively mature technical systemwas formed through research,providing technical demonstrations and solutions for the construction of a digital twin forestry map in Guangdong Province.

Key words: digital twin, 3D visualization, point cloud modeling, 3D tree species model, 3D forest scene

CLC Number:

S731.2
TP391

MENG Xianjin, LIN Shouming, QIN Lin, HUANG Ninghui, DING Sheng, XUE Yadong, LUO Yong, YANG Tingdong. Green and Beautiful Guangdong Ecological Construction Demonstration Zone Digital Twin Application Research[J]. Forest and Grassland Resources Research, 2023, (5): 113-121.

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编号	北坐标/m	东坐标/m	高程/m	树种	东西冠幅/m	南北冠幅/m	枝下高/m	胸径/cm	树高/m
1	2 574 202.17	481 291.50	32.91	铁冬青	0.9	0.4	0.9	1.0	1.4
2	2 574 201.43	481 288.14	33.09	铁冬青	0.8	0.3	0.8	0.8	1.0
3	2 574 200.98	481 284.97	33.07	醉香含笑	1.0	0.3	1.3	2.5	1.9
4	2 574 200.43	481 282.30	32.95	闽楠	0.2	0.3	1.0	0.8	1.3
5	2 574 200.52	481 280.09	32.50	三桠苦	2.0	2.0	2.2	5.0	4.5
6	2 574 200.92	481 280.62	32.50	三桠苦	3.0	1.0	2.5	6.1	4.7
7	2 574 202.12	481 281.17	32.23	黄牛木	3.5	4.0	0.1	8.5	6.0
8	2 574 202.76	481 283.15	32.03	破布叶	6.0	5.5	1.7	13.8	8.0
9	2 574 205.44	481 288.16	31.12	山乌桕	3.0	3.5	2.3	8.6	5.5
10	2 574 205.38	481 293.01	30.93	刨花润楠	0.8	0.7	0.2	1.8	1.3
11	2 574 204.55	481 297.85	31.33	山乌桕	2.5	1.6	2.2	3.1	3.2
12	2 574 154.60	481 295.44	45.72	猪血木	0.5	0.6	1.1	1.6	1.6
13	2 574 202.11	481 297.55	32.31	鹅掌柴	5.0	5.5	2.3	17.0	8.5
14	2 574 202.39	481 295.84	32.64	潺槁木姜子	5.0	5.5	2.0	4.7	6.0
15	2 574 200.49	481 293.23	33.19	深山含笑	0.5	0.4	1.2	1.8	1.8