基于Petri网的遥感产品生产模型  

Remote Sensing Product Production Model Based on Petri Nets

作　　者：王慧[1] 鲁丽萍 周兵[1] 

机构地区：[1]河南大学计算机与信息工程学院,河南开封475004 [2]河南省财政税务高等专科学校信息工程系,郑州451464

出　　处：《河南大学学报（自然科学版）》2014年第4期474-478,共5页Journal of Henan University:Natural Science

基　　金：国家航天局国防科技工业民用专项科研技术研究项目(科工技2012A03A0905)

摘　　要：在遥感产品生产过程中,产品生产的算法之间会存在先后依赖关系,并且由于输入的数据源个数不同,生产过程也会有所不同.由于遥感产品生产流程具有灵活性及复杂性的特点,描述遥感生产流程也变得相对困难.根据遥感应用需求,结合遥感产品生产的特点,以可视化模型构建及快速生产为目标,采用Petri网理论提出了基于Petri网的遥感产品生产模型,给出表征该模型所用的符号定义并利用这些符号组合成遥感产品生产模型,对遥感产品生产流程进行抽象和概括,直观、形象地体现出算法之间的调用关系及算法被调用的次数,反映出数据的实际处理过程.然后用示例描述了遥感产品生产流程的变更,并分析了遥感产品生产的并行性,为遥感产品的快速生产策略研究提供了重要的分析手段.In the process of remote sensing products production, interdependent relations exist between the algorithms used in product production, and because of different number of input data source, the production process will be different. As the flexibility and complexity of remote sensing production process, the description of remote sensing production process becomes relatively difficult. In accordance with the application of remote sensing, combined with the characteristics of remote sensing products, this paper put forward a remote sensing production model based on Petri net theory, aiming at the establishment of visualization model and rapid production. In order to make an abstraction and generalization of remote sensing production process, we defined the symbols used in the model, and combined them into a production model of remote sensing. The proposed model can intuitively and graphically represents the called relation of the algorithms and the number of calls; moreover, it can also reflect the actual data processing. And then we described the changes of remote sensing product production process. Finally, we analyzed the remote sensing products parallelism, which provided an important analytical tool for the research on rapid production strategies of remote sensing products.

关 键 词：遥感 PETRI网 生产模型 流程变更 并行性 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]