Research Of Distributed Networked Parallel System Application In Vessel Command And Control System

Distributed system has higher performance and reliability than the single computer system, and has beening used wider and wider with the all-pervading of Internet and distributed characteristics of some applications. But for the distributed system, when the system is overloaded, the distributed system can not meet the performance requirements anticipated because of the bottleneck of the speed of monolithic processor, network congestion and delay and unbalanced partition of load, consequently to improve the performance of the distributed system ulteriorly is an imperative problem.This thesis combines the merits of distributed system and those of parallel system, and the monolithic processor conjunction distributed system is changed into networked parallel computing conjunction distributed system, which is applied in important component of navy integrated electronic system for the first time-surface vessel command and control system . On account of the handling speed of networked parallel computing conjunction is higher than that of monolithic processor conjunction, so the handling speed of whole distributed system is improved. At the same time, this thesis has analyzed the programming method of parallel computing system based on network and optimized the original distributed architecture of surface vessel command and control system which is studied in this thesis according to parallelism , and provided a distributed network parallel architecture which is adapt to operational requirements of actual navy surface vessel command and control system, and discussed the feasibility and performance predominance of this kind of architecture. In addition, this thesis provides a kind of load balance resolution scheme which is adapt to the networked parallel distributed architecture according to the characteristics of the architecture of distributed networked parallel surface vessel command and control system and studying actual all kinds of parallel system load balance algorithms, that is to demand dynamic load balance on the basis of prior mission and to makethe stability and reliability of the system to be improved.The distributed networked parallel architecture and load balance resolution scheme which is adapt to this kind of architecture have been simulated on the surface vessel command and control system artificial platform, and the experiment shows that the performance of the surface vessel command and control system is higher than that of the original distributed system by making use of this kind of method and proves that the method discussed in this thesis has some practical value.