The article researches on the spatial morphology of traditional Bai villages in Dali based on GIS and Fractal theory. Firstly, six traditional villages on the west bank of Erhai Lake in Dali were selected for data collection. Secondly, these data were used to calculate, analyze, and discuss the fractal dimension of traditional villages by ArcGIS software. Finally, the results include: 1)the fractal dimension values at different scale levels depend on the self similarity between village boundaries and the environment. 2)the similarity of village boundaries, buildings, and roads determines the fractal dimension values of different scale levels in each village. And conclusions are summed up that GIS technology has expanded its application scope in traditional Bai villages in Dali, and has quantitatively analyzed the spatial form data of traditional villages.
Fire early warning is one of the technical methods of ecological security, and computer technology is widely used in fire simulation.Fire simulation software has been more and more widely used in buildings.This article uses PyroSim software to simulate fire simulation of Bai folk houses. Firstly, a model of Bai folk house was constructed by on-the-spot investigation and used to simulate the different stages of a fire. In the model, it sets up grid slices and fire source points to simulate the fire, which is divided into three stages: before, during and after the fire, and the data of each simulation stage is collected. Secondly, it deeply analyzes the data characteristics of temperature, humidity, smoke concentration and so on which are obtained the corresponding changes. Finally, it determines the locations of temperature, humidity, smoke perception and other sensors are analyzed and determined to be 2-3 meters in Bai folk houses. This paper provides a reference for the improvement of the Fire Warning System and it is beneficial to the intelligent management of Bai folk houses.
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