CAJ | 학술논문

网络时空数据模型是研究市政、交通、电力等网络基础设施时空过程的基础。目前，顾及时空拓扑关系的网络时空数据模型缺乏深入研究。分析网络要素的共性时空特征，给出了时空对象、网络时空对象等共性概念的数学描述，构建了一种通用的网络时空数据模型NSTDM（Network Spatiotemporal Data Model），完整表达了网络的时空语义，具有较强的普适性和实用性。并通过燃气管网时空演变分析实例，验证了所提出的模型的可行性与有效性。
망락시공수거모형시연구시정、교통、전력등망락기출설시시공과정적기출。목전，고급시공탁복관계적망락시공수거모형결핍심입연구。분석망락요소적공성시공특정，급출료시공대상、망락시공대상등공성개념적수학묘술，구건료일충통용적망락시공수거모형NSTDM（Network Spatiotemporal Data Model），완정표체료망락적시공어의，구유교강적보괄성화실용성。병통과연기관망시공연변분석실례，험증료소제출적모형적가행성여유효성。
Network spatiotemporal data model is the foundation of studying spatiotemporal processes of network infrastructure such as mu-nicipal,transport,electricity.Currently,the network spatiotemporal data model considering topology relation lacks in-depth study.This pa-per analyses the general spatial and temporal characteristics of the network features,gives mathematical descriptions on generic concepts in-cluding spatiotemporal object,network spatiotemporal object,etc.,and builds a general network spatiotemporal data model (NSTDM).NST-DM completely expresses the spatiotemporal semantics of network,and has strong universality and practicality.Finally,this paper verifies the feasibility and validity of the model proposed by analysing the spatiotemporal evolution of the gas network.