朱杰, 张宏军. 面向仿真事件的战场地理环境时空过程建模[J]. 武汉大学学报 ( 信息科学版), 2020, 45(9): 1367-1377, 1437. DOI: 10.13203/j.whugis20200175
引用本文: 朱杰, 张宏军. 面向仿真事件的战场地理环境时空过程建模[J]. 武汉大学学报 ( 信息科学版), 2020, 45(9): 1367-1377, 1437. DOI: 10.13203/j.whugis20200175
ZHU Jie, ZHANG Hongjun. Battlefield Geographic Environment Spatiotemporal Process Model Based on Simulation Event[J]. Geomatics and Information Science of Wuhan University, 2020, 45(9): 1367-1377, 1437. DOI: 10.13203/j.whugis20200175
Citation: ZHU Jie, ZHANG Hongjun. Battlefield Geographic Environment Spatiotemporal Process Model Based on Simulation Event[J]. Geomatics and Information Science of Wuhan University, 2020, 45(9): 1367-1377, 1437. DOI: 10.13203/j.whugis20200175

面向仿真事件的战场地理环境时空过程建模

Battlefield Geographic Environment Spatiotemporal Process Model Based on Simulation Event

  • 摘要: 已有的战场环境仿真模型缺乏作战实体与地理实体和地理现象之间相互影响及交互作用的语义表达,难以反映时空条件下地理环境实体的动态变化规律。提出了一种面向仿真事件的战场地理环境时空过程模型,实现时空过程语义的一体化描述以及结构化存储,从语义角度表达时空对象之间的相互作用和影响关系。该模型采用本体的方法集成描述仿真事件、环境实体及其行为过程的时空语义和属性语义,基于面向对象的方法构建具有层次结构的时空过程语义逻辑关系,按照数据模型的语义特征建立时空过程数据的组织与存储结构。基于该模型设计战场环境仿真平台组件并在仿真系统中应用,实验表明, 与传统仿真模型相比,该模型能更好地记录和表达时空过程语义变化信息。

     

    Abstract: It lacks of the semantic expression of the mutual effects and interactions between operational entities and geographical entities and geographical phenomena in the existing simulation model of battlefield environment, and consequently, it is hard to reflect the dynamic change rules of the geographic environmental entities under the conditions of time and space. A spatio-temporal process model of battlefield geography environment based on simulation events is proposed to realize the integrated description and structured storage in spatio-temporal process semantics, so as to express the mutual effects and interactions between spatio-temporal objects from semantic perspective. In this model, the ontology method is used to comprehensively describe the spatio-temporal semantics and attribute semantics of simulation events, environmental entities and their behavioral process. Firstly, the spatio-temporal process semantic concepts are abstractly described based on object-oriented method, and the structural conceptual model is established by integrating the semantic relations and semantic operation rules. Secondly, according to the "individual-part-whole" cognitive principle of geospatial, the semantic and logical relationship of spatio-temporal process with hierarchical structure is constructed by top-down method, and semantic constraints are established based on event triggering to standardize semantic operation. Thirdly, the organization and storage structure of spatio-temporal process data is established according to the semantic features of data model, and the dynamic change process of spatio-temporal data driven by simulation event is realized through semantic mapping mechanism. Through the simulation events defined by the simulation system, and the spatiotemporal database and the geographical environment ontology database called by the model association relationship, the semantic attribute record of spatiotemporal process is realized from the data layer, which providing services for spatiotemporal data reasoning and backtracking. The specific performance is as follows: (1) the semantic description of the simulation events is the cause of the change of the environmental entity object; (2) the spatial semantics of the environmental entity objects describe the change information of the spatial location, geometric type and topological relationship of the object; (3) the temporal semantics of the environmental entity objects describe the temporal information of the object during the simulation process; (4) the attribute semantics of the environmental entity objects describe the change information of the object type, structure and function; (5) the process of entity behavior is represented by a series of operations of the attri-bute semantics of entity objects according to time series. The semantic model of spatio-temporal process is established by ontology as the core, integrating spatio-temporal object semantic information as the core to establish the overall framework of the model, describing and expressing the spatio-temporal semantics simultaneously, to form an object-oriented structure system that conforms to the cognitive law. Compared with the traditional simulation model structure, the dynamic changes of the battlefield geographical environment and the interaction and influence with the simulation events are reflected from the semantic point of view, making the change of spatio-temporal data conform to the development law of battlefield simulation, so the semantic correlation between spatio-temporal data and event information is strengthened by the function, improving the theory and method of dynamic modeling of battlefield environment. In the further work, the dynamic evolution mechanism of spatio-temporal data under the condition of continuous events, the extensibility and reusability of data semantic model, and the application and implementation of the model in complex systems will be further studied and explored to meet the needs of future systems.

     

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