A positioning system for forest diseases and pests based on GIS and PTZ camera

35th International Symposium on Remote Sensing of Environment

地球科学;生态环境科学

Wang, Z.B.^1,2 ; Wang, L.L.^3 ; Zhao, F.F.^1 ; Wang, C.B.^1

Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100094, China^1

Computer and Information Technology College, Northeast Petroleum University, Daqing 163318, China^2

Information Center, Well Testing and Perforating Services of Daqing Oilfield Company Limited, Daqing 163312, China^3

关键词: Algorithm accuracies;    Disaster areas;    Ecological damage;    Forest department;    Positioning algorithms;    Positioning system;    Prevention and controls;    Video positioning system;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/17/1/012254/pdf
DOI  :  10.1088/1755-1315/17/1/012254

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Forest diseases and pests cause enormous economic losses and ecological damage every year in China. To prevent and control forest diseases and pests, the key is to get accurate information timely. In order to improve monitoring coverage rate and economize on manpower, a cooperative investigation model for forest diseases and pests is put forward. It is composed of video positioning system and manual labor reconnaissance with mobile GIS embedded in PDA. Video system is used to scan the disaster area, and is particularly effective on where trees are withered. Forest diseases prevention and control workers can check disaster area with PDA system. To support this investigation model, we developed a positioning algorithm and a positioning system. The positioning algorithm is based on DEM and PTZ camera. Moreover, the algorithm accuracy is validated. The software consists of 3D GIS subsystem, 2D GIS subsystem, video control subsystem and disaster positioning subsystem. 3D GIS subsystem makes positioning visual, and practically easy to operate. 2D GIS subsystem can output disaster thematic map. Video control subsystem can change Pan/Tilt/Zoom of a digital camera remotely, to focus on the suspected area. Disaster positioning subsystem implements the positioning algorithm. It is proved that the positioning system can observe forest diseases and pests in practical application for forest departments.