The Weapons Control System Dual Backup Software Object-oriented Design

The C3I system is the core of the antiaircraft missile weapon system.It responsibles for command controlment communication and information.It plays a very important role in the antiaircraft missile weapon system.It also is the key factor for formation battle of ships.In order to ensure the high availability,reliability of the C3I system and the reliability of the weapon systems.A hot-redundancy system are designed for the command control data processing computer. When the major computer cannot work,the second computer can take over the major computer's work rapidly and ensure that communication will not be interrupted.UML belongs to the third generation modeling languages.It is a tool which is good at visual modeling among complex large systems. It is a de facto software industry standard. UML always is used for C3I software's designs which focus on usecase driving,orient system,iterative research etc.According to the special needs of weapon systems,a new duplicated fault tolerance system based on "soft" mode is put forward. The article is an introduction to object-oriented analysis and design for the duplicated system using UML.This thesis gives the design and implementation of duplicated fault tolerance system , and explains the pivotal process and technology in detail such as synchronization of principal and subordinate and switch of duplex computer. According to the test data,it shows that the duplicated fault tolerance system runs good and switchs rapidly in the all statuses. It indicates that the design and implementation of system achieve the expected results.