Research On DDS Technologies Of Aircraft-oriented Collaborative Design

With the rapid development of information technology, completing a complex projectcollaboratively by several organizations has currently become one of the hot research topics. However,the problem of ensuring real-time interactive data among the organizations has also becomeincreasingly prominent. Although the existing interactive data platforms can effectively implement thedata interaction, the data in the aspect of real-time or service quality control is still inadequate.Moreover, the lack of a standard specification about data distribution platform makes the platformtransplantation and reusability unreliable. Therefore, in order to be able to provide a standard datainteraction in a heterogeneous platform, the object management group launched a DDS datadistribution service specification. The specification can not only realize the data real-time interaction,but also allow the user to control QoS parameters according to the actual demand, thus improve theflexibility of the system.With aircraft collaborative design as a research background, this thesis work mainly focused onDDS technology research of aircraft-oriented collaborative design. The main work include:1)Research and analyze on DDS relevant standard, architecture, module partition and key technologies;2) Based on the design of the important component of aircraft, select and define the topic, design andmanage the Global Data Space, and design a framework of aircraft-oriented collaborative designsystem AOCD_DDS;3) Define rich QoS policies by DDS specification, study some main QoSpolicies on the implementation and control in AOCD_DDS system, realize the analysis andverification by combining with some QoS impact of the delay and network throughput;4) Mainlystudy the AOCD_DDS discovery mechanism automatically and propose an improved auto-discoveryalgorithm ISDPBQ_ADA based on SAV, which can reduce the system memory resource consumptionand network traffic without affecting other aspects of the system.In a conclusion, an aircraft-oriented collaborative design system AOCD_DDS have beenpreliminarily completed to realize publish/subscribe data. It can meet the3R (Right) principle that atthe right time, deliver the right data to the right place.