Design And Implementation For Satellite Remote Sensing Micro Meteorological Disaster Monitoring And Early Warning System

With the continuous expansion of the scale of China’s power grid, a large number of grid lines and resources cross complex micro meteorological environment area, the local micro topography, micro meteorological environment generated by extreme micro meteorological disasters on the grid and damage is more and more obvious. In our country by the middle of the 20 th century to 21 century are occurred serious micro meteorological disasters and micro meteorological disasters caused by power lines to influence is quite serious. Therefore, the establishment of the complete grid micro meteorological disaster response management system is imminent. On this basis, according to the requirements of power system reliability and disaster monitoring and early warning, based on the remote sensing images of various meteorological disasters inversion method design a set of electric power micro meteorological disaster monitoring and early warning system, it can be used for haze, floods, landslides and snow and other micro meteorological disaster monitoring and early warning. This paper focusing on the realization of haze inversion and disaster monitoring and early warning platform build, it has carried on the elaboration from the disaster inversion, construction ideas, software architecture and the function of the software, and improve the efficiency of the AOT inversion in haze module, it make the program can quickly get the inversion results. Specific research work is as follows:(1) This paper analyzes the impact of micro-meteorological disasters on grid, I learned remote sensing image preprocessing methods and use of optical or microwave image inversion and monitoring. The preprocessing of optical remote sensing image are completed by programming, Such as radiometric calibration, geometric correction, image cropping, band operation and synthesis, and finally build the corresponding pretreatment program module.(2) According to the dark pixel realized haze monitor module based on MODIS images, improvements in the AOT lookup table algorithms to reduce the time of haze inversion program module. When used and calculated the atmosphere apparent reflectance in lookup table, match in the lookup table for each pixel of the solar zenith angle, zenith angle and relative azimuth angle calculated pixel and the three parameters of the fitting degree, at the same time to complete all of the pixels from the point of view of the information matching in the lookup table in a cycle calculation parameters of a plurality of pixels into. Reduce the time of reading and writing and parameter calculation, it can improve the efficiency of program inversion.(3) In this paper, the micro meteorological disaster remote sensing monitoring platform are designed and realized. Add each module by writing plug-inversion disaster management program, while achieving external executable program calls and expansion, the common remote sensing image information can be read and displayed in the platform, and expand the function of the platform. Automatic warning of micro meteorological disasters is realized through computer programming by using sim900 a hardware module, inversion monitoring to the appropriate disaster information, in the form of text messages to automatically notify the relevant personnel to ensure the accuracy and timeliness of disaster message.