摘要
针对传统恶劣气象监测预警系统的检测准确率低、预警时效性较差的问题,提出基于卫星遥感数据的恶劣气象监测预警系统;利用GDAL软件自带的读写功能,处理已读取的遥感影像基本信息,再根据辐射定标与亮温计算数值,完成卫星遥感数据的预处理模块设计;连接插件模块的逻辑结构,利用待集成的平台插件,控制下级遥感信息显示与预警模块,实现恶劣气象监测预警系统的设计与应用;按照系统多线程的同步与通信关系,完成遥感数据的云识别处理,实现卫星遥感程序与恶劣气象监测预警模块之间的实时交互;选取风向指标作为恶劣气象监测预警对象,分析对比实验数据可知,在不同风向条件下,卫星遥感型监测系统所检测出的风向指标数值与实际值十分接近,风速最大值接近5.0 m/s,对恶劣气象的预警耗时平均值为1.6 s,能够及时响应系统主机的预警指令,准确监测预警恶劣气象信息。
Aiming at the problems of low detection accuracy and poor timeliness of early warning in traditional severe weather monitoring and early warning system, a severe weather monitoring and early warning system based on satellite remote sensing data is proposed. The read-write function of Geospatial Data Abstraction Library(GDAL) software is used to process the basic information of remote sensing image that has been read, then according to the radiation calibration and brightness temperature results, the pre-processing module design of satellite remote sensing image is completed. The logical structure of plug-in module is connected, and the platform plug-in is used to be integrated, which controls the lower-level remote sensing information display and early warning module to realize the design and application of severe weather monitoring and early warning system. According to the system multi-threaded synchronization and communication relationship, the cloud recognition processing of remote sensing data is completed, and the real-time interaction between satellite remote sensing program and severe weather monitoring and early warning module is realized. The wind direction index is selected as the object of severe weather monitoring and early warning. The analysis and comparison of experimental data shows that, under different wind direction conditions, the value of wind direction index detected by the satellite remote sensing monitoring system is very close to the actual value, and the maximum wind speed is close to 5.0 m/s, the average time of severe weather early warning is 1.6 s, the early warning commands of system host can timely responded, and the early warning severe weather information is accurately monitored.
作者
吴瑾
崔沂峰
姜紫阳
傅学振
孙齐
杨昆
WU Jin;CUI Yifeng;JIANG Ziyang;FU Xuezhen;SUN Qi;YANG Kun(Linyi Meteorological Bureau,Shandong 276700,China;Logistics College,Linyi University,Shandong 276700,China)
出处
《计算机测量与控制》
2022年第5期1-5,12,共6页
Computer Measurement &Control
关键词
卫星遥感
恶劣气象
监测预警
GDAL软件
插件模块
同步通信
satellite remote sensing
severe weather
monitoring and early warning
GDAL software
plug-in module
synchronous communication
