Research On Distributed Collaborative Simulation Technology For UAV

With the widely application of the unmanned aer ial vehicle( UAV),the function and simulation software size of UAV is more and more complex, which is difficult to meet the requirements the traditional stand-alone environment of UAV simulat ion.In order to solve the problem of software insufficiency and improve the reusability and versatility of UAV simulat ion software,A distributed collaborat ive simulat ion software of UAV is designed, which separates simulation application and platform, and meets the requirements of collaborative simulation in UAV system.At first, based on the analysis of the collaborat ive simulat ion software functionality and performance requirements, the overall des ign scheme of simulation software is given, and the simulat ion software is divided into two parts: simulat ion function module and simulat ion management module. Simulation management module provides a distributed simulat ion supporting environment that provides a data interaction management platform for function modules, it achieves the integrated simulation of UAV system under the synergy scheduling of simulation management module.Then, the function module and simulat ion management module are designed in detail. On the basis of UAV object model, the module design of UAV object model by using the Rapid Prototyping technology, and the function module with unif ied standard interface is implemented. According to the idea of hierarchical design, simulation management module is divided into application layer, schedule management and communication layer, realizes the collaborat ive operat ion of the function module and simulat ion management module through standard interfaces between mutual collaborat ion of each layer.After that, from the perspective of real-time mult itasking, we studied the task scheduling mechanism of UAV synergy simulat ion software, and designed task scheduling strategy as well as resource-accessing strategy between tasks in detail to guarantee system data security and system instantaneity and reliability.Finally, we tested and verified the function and performance of UAV synergy simulation system through semi-physical simulat ion experiment. The result indicates that the UAV synergy simulation software can achieve simulat ion function of distributed environment UAV and can meet the requirement of instantaneity and reliability.