系统工程与电子技术
繫統工程與電子技術
계통공정여전자기술
SYSTEMS ENGINEERING AND ELECTRONICS
2015年
7期
1683-1690
,共8页
董志华%朱元昌%邸彦强%孟宪国
董誌華%硃元昌%邸彥彊%孟憲國
동지화%주원창%저언강%맹헌국
体系结构%数据分发服务%对象模型
體繫結構%數據分髮服務%對象模型
체계결구%수거분발복무%대상모형
architecture%data distribution service (DDS)%object model
联合试验要求构建大规模分布式实时仿真环境。仿真体系结构主要解决模型的互操作、组合和重用,在通信性能和扩展性方面存在不足,难以满足实时性需求。本文提出了一种基于数据分发服务的仿真系统互联架构,利用其优势可以建立高实时性、易扩展的仿真系统。将仿真系统、仿真系统交互信息映射成为数据分发服务(data distribution service,DDS)实体,建立实体间的公布/订阅关系,可实现仿真系统间的信息交换。以数据为中心的公布订阅机制规定“只有属于同一数据空间的公布者和订阅者之间才能建立公布/订阅关系,该机制限制了架构的扩展性。利用 Domain 桥将两个数据空间相联,通过主题映射实现不同数据空间的信息交互,以提高仿真架构的性能和扩展性。最后,通过两个原型试验发现了映射模型与系统性能的关系,证实了 Domain 桥的功能和性能。
聯閤試驗要求構建大規模分佈式實時倣真環境。倣真體繫結構主要解決模型的互操作、組閤和重用,在通信性能和擴展性方麵存在不足,難以滿足實時性需求。本文提齣瞭一種基于數據分髮服務的倣真繫統互聯架構,利用其優勢可以建立高實時性、易擴展的倣真繫統。將倣真繫統、倣真繫統交互信息映射成為數據分髮服務(data distribution service,DDS)實體,建立實體間的公佈/訂閱關繫,可實現倣真繫統間的信息交換。以數據為中心的公佈訂閱機製規定“隻有屬于同一數據空間的公佈者和訂閱者之間纔能建立公佈/訂閱關繫,該機製限製瞭架構的擴展性。利用 Domain 橋將兩箇數據空間相聯,通過主題映射實現不同數據空間的信息交互,以提高倣真架構的性能和擴展性。最後,通過兩箇原型試驗髮現瞭映射模型與繫統性能的關繫,證實瞭 Domain 橋的功能和性能。
연합시험요구구건대규모분포식실시방진배경。방진체계결구주요해결모형적호조작、조합화중용,재통신성능화확전성방면존재불족,난이만족실시성수구。본문제출료일충기우수거분발복무적방진계통호련가구,이용기우세가이건립고실시성、역확전적방진계통。장방진계통、방진계통교호신식영사성위수거분발복무(data distribution service,DDS)실체,건립실체간적공포/정열관계,가실현방진계통간적신식교환。이수거위중심적공포정열궤제규정“지유속우동일수거공간적공포자화정열자지간재능건립공포/정열관계,해궤제한제료가구적확전성。이용 Domain 교장량개수거공간상련,통과주제영사실현불동수거공간적신식교호,이제고방진가구적성능화확전성。최후,통과량개원형시험발현료영사모형여계통성능적관계,증실료 Domain 교적공능화성능。
Large-scale distributed real-time simulation environment is needed in the background of joint test and training.Simulation architectures focus on interoperability modeling and reuse except real-timing and scal-ability,so they cannot meet the requirement of real-time simulation systems.Layered simulation architecture is presented based on data distribution service (DDS),which can boost the performance of real-time simulation systems.The mapping relationship is set up between latency simulations,the exchanged information and data centric-publish-subscribe (DCPS)entities,based on which publish/subscription is rebuilt to realize the data ex-change between simulation systems.DCPS defines that the publish/subscription relationship can be specially built between the publishers and subscribers belonging to the same data space.The information exchange is done using the Domain bridge through topic mapping,which improve the performance and scalability of the sim-ulation architecture.Finally,the relationship between the mapping model and the performance of the real-time system is found and the function of the Domain bridge is validated,through two prototype systems testing.