地理与地理信息科学
地理與地理信息科學
지리여지리신식과학
GEOGRAPHY AND TERRITORIAL RESEARCH
2010年
1期
44-47
,共4页
对象-事件模型%地籍对象%地籍业务%地籍数据库
對象-事件模型%地籍對象%地籍業務%地籍數據庫
대상-사건모형%지적대상%지적업무%지적수거고
object-event model%cadastral object%cadastral event%cadastral database
在分析国内外地籍管理信息系统和地籍数据库模型的基础上,分析了地籍业务事件的特点及其对时空地块状态变化的影响规律,提出了一种地籍业务联动更新的地籍数据库模型:对象-事件模型,通过将地籍数据对象化、地籍业务事件化,建立对象、事件间的关联关系,实现地籍业务与地籍数据联动更新.根据对象-事件模型原理,对地籍对象、事件进行提取,设计地籍数据库,并在此基础上构建了成都市地籍管理信息系统.
在分析國內外地籍管理信息繫統和地籍數據庫模型的基礎上,分析瞭地籍業務事件的特點及其對時空地塊狀態變化的影響規律,提齣瞭一種地籍業務聯動更新的地籍數據庫模型:對象-事件模型,通過將地籍數據對象化、地籍業務事件化,建立對象、事件間的關聯關繫,實現地籍業務與地籍數據聯動更新.根據對象-事件模型原理,對地籍對象、事件進行提取,設計地籍數據庫,併在此基礎上構建瞭成都市地籍管理信息繫統.
재분석국내외지적관리신식계통화지적수거고모형적기출상,분석료지적업무사건적특점급기대시공지괴상태변화적영향규률,제출료일충지적업무련동경신적지적수거고모형:대상-사건모형,통과장지적수거대상화、지적업무사건화,건립대상、사건간적관련관계,실현지적업무여지적수거련동경신.근거대상-사건모형원리,대지적대상、사건진행제취,설계지적수거고,병재차기출상구건료성도시지적관리신식계통.
Cadastral data are the core contents in land management,so the database design is the focus of cadastral management information system.With the rapid economic development,unreasonable land utilization and frequent changes of cadastral information make it hard to conduct the land management.Based on the analysis of the current situation of domestic and international land management information systems and cadastral database models,the characteristics of events and how they impact the states of spatial objects is analyzed and the changing is put forward in this paper.Cadastral database model named object-events model is designed,which treats cadastral data as object and treats cadastral operation as event to establish the correlation between objects and events.Cadastral objects include spatial objects such as clan and attribute objects (such as clan obligee).Cadastral events are complex events,which make the event states constantly change.According to the different changes of cadastral events,the events can be classified into attribute events and spatial events.The core of land management is to get the basic information of cadastral,i.e.the attribute and state of cadastral objects.Because the changes of the information of objects are driven by cadastral events,it is events that make cadastral objects change in terms of operations.Cadastral database has three levels,which are current database,history database and intermediate database.Through establishing the target relationship between the object and event,this approach upgrades cadastral operation and data in synchronism.The model focuses on the target of land certificate,deploys system of events to record and track cadastral data,and records in detail the whole changing process of land certificate.The object-events model can not only express the space-time relation of features but also link with the operations,which makes it easy for database to realize it.According to the principle of object-events model,the cadastral objects and events are collected and the cadastral database is elaborately designed.Based on that,Chengdu cadastral management information system is established.