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A fire-fighting control system, which is usually implemented through programmable logic controllers, is a typical type of safety-critical cycle physical system. It has been widely used in currently complex industrial applications. So it is significant for a fire-fighting control system to conduct safety checking. There have been many methods to check safety of a fire-fighting control system so far,...
Based on Landsat-TM images, the flood disaster area was identified by Spectrum-photometric Method during Pakistan 2010 extra-large floods in this paper. According to the different period's images of pre-disaster and in-disaster, the flood bodies' range was extracted. On this basis, the disaster loss assessment including disastrous area, affected population, disastrous area of farmland (land use information),...
Tianjin is one of the cities in the north of China where the land subsidence has most seriously developed. The land subsidence has been lasting for 50 years. In the paper, we use permanent scatterers interferometric synthetic aperture radar (PS-InSAR) technique to detect and measure ground movement in this area. The time serial measured results demonstrate that land subsidence in the study area, is...
The 0908 typhoon “Morakot” heavily attacked Taiwan. It brought strong rainfall which not only caused water level rise in several reservoirs and rivers, but also triggered a large number of landslides, debris flow, collapse and other geological disasters. In this paper, using NDVI(Normal Differential Vegetation Index) subtractive method, together with band combination symbol coding method, “Morakot”...
Establishing database of marine stations real-time monitoring provides data support for marine environment forecasting sectors. According requirements of marine stations observation database, design and implement marine stations realtime monitoring database management system. Introduce the main method and technique of database construction. According respective characteristics of the marine monitoring...
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