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In this paper, the relation between GIS and remote sensing was described. ANSAI county, which is located in loess plateau of northern Shanxi, was used as the experimental area and the original multi-spectrum of 1987-landsat 5 TM images was selected. The existing geographical information in GIS data base, was fully utilized. The method of pattern recognization which depends on spectral respondence on the base of pattern recognization by conventional spectral characters, and the concepts of dynamic and static... In this paper, the relation between GIS and remote sensing was described. ANSAI county, which is located in loess plateau of northern Shanxi, was used as the experimental area and the original multi-spectrum of 1987-landsat 5 TM images was selected. The existing geographical information in GIS data base, was fully utilized. The method of pattern recognization which depends on spectral respondence on the base of pattern recognization by conventional spectral characters, and the concepts of dynamic and static stratification have been introduced The experience was performed to improve the classification of current landuse by combining the static stratification with dynamic stratification. Some results are given in this paper, The research has also been made in. compounding geographical information with images. 本文阐述了GIS和遥感之间的关系,并综合应用GIS信息和遥感光谱数据,进行了改善遥感图象分类精度的试验。选取陕北黄土高原安塞县真武洞为试点,以1987年Landsat-5 TM影象窗原始波段为代表,利用GIS数据库中的地理信息,在以常规光谱特征为基础的模式识别基础上,引进了以光谱效应为基础的模式识别方法及静态层、动态层的概念,通过遥感光谱信息和地理信息分别生成的动态层和静态层两个层理相结合,进行了改善土地利用现状分类精度的尝试,并给出了试验结果。另外对地理信息和影象复合的方法也进行了初步的探索。 An intelligent diagnostic model of multiple level abstraction and hybrid reasoning is proposed.This model integrates four levels(equipment structure,faults,symptoms and sensors) and three reasoning paradigms. Its applications to the diagnostic knowledge processing,including object oriented hybrid knowledge representation and hybrid reasoning strategy,are discussed. 针对设备故障智能诊断问题,提出了一种多层抽象混合推理的智能诊断模型。该模型把设备故障智能诊断问题分成四个静态层和三个动态层,对诊断知识进行了比较合理的分层与分类,并把领域“深知识”、经验“浅知识”和算法知识有机地结合起来加以运用,文中给出了该模型在设备故障诊断知识表示和推理的具体应用方法。 This paper describes the power system hybrid interactive behavior of continuous dynamic and the discrete event dynamic, and introduces programmable timed Petri Nets modeling tools of hybrid system. The paper proposes hybrid power system modeling method using programmable timed Petri Nets. The method divides complex power system into discrete state logic layer and continuous state layer. A high-level discrete events supervisory is used to coordinate the actions of the action of various subsystem. Meantime, the... This paper describes the power system hybrid interactive behavior of continuous dynamic and the discrete event dynamic, and introduces programmable timed Petri Nets modeling tools of hybrid system. The paper proposes hybrid power system modeling method using programmable timed Petri Nets. The method divides complex power system into discrete state logic layer and continuous state layer. A high-level discrete events supervisory is used to coordinate the actions of the action of various subsystem. Meantime, the paper gives a modeling example of power system with OLTC, and analysis of power system logic switching stability using multiple Lyapunov functions. Simulation results denote that the model switching is stable and the proposed hybrid modeling method is feasible. 描述了电力系统离散事件与连续动态相互作用的混杂行为,介绍了离散事件系统的模型工具Petri网与混杂系统的模型工具可编程赋时Petri网。提出了利用可编程赋时Petri网来建立混杂电力系统模型的方法。该方法将复杂的电力系统分成离散状态逻辑层和连续动态层来描述,由逻辑层进行协调各连续动态系统的模式切换。同时,文中给出了一个利用可编程赋时Petri网对具有有载调压变压器的简单电力系统的建模实例,并利用多Lyapunov函数方法进行了系统的逻辑切换稳定性分析。仿真结果表明了在有载调压变压器能够调节的范围内,系统的模式切换是稳定的,以此证实这种建模方法的有效性。
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