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根据大型复杂装备研发周期长、耗资大、风险大的特点,引入前馈控制机制,建立了大型复杂装备研发项目成本控制专家系统的体系结构,同时以该体系结构为主体,给出专家系统的知识表示及推理机的一种实现方法,最终使得知识库和推理机得以独立实现.实现后的系统以知识库和专家系统相结合的方式对装备研发成本进行实时监控和预测,对于输入的问题,系统经过推理后给出相应的参考建议,为成本管理智能化提供可行依据.由于知识库和推理机是相对独立实现,因此该系统相对传统专家系统来说具有更好的可维护性和可靠性.
According to the characteristics of large complex equipment such as long development cycle, high cost and high risk, the system structure of cost control expert system of large and complex equipment R & D project is established by introducing the feedforward control mechanism. At the same time, the system structure of expert system Knowledge representation and inference engine, which ultimately make the knowledge base and inference engine realized independently.After the system is realized, the R & D cost of equipment is monitored and predicted in real time by combining the knowledge base and the expert system, , The system gives the corresponding reference suggestion after reasoning, which provides a feasible basis for intelligent cost management.Because the knowledge base and inference engine are relatively independent, the system has better maintainability and reliability than the traditional expert system Sex.