基于最小二乘法的生产配置参数建模系统设计

Design of production configuration parameter modeling system based on least square method

为了提高生产控制系统的可维护性,提出面向生产线对象的参数化建模方法,即基于最小二乘法的生产配置参数建模系统,利用最小二乘法确定生产线配置模型结构,采用递推最小二乘法对生产线配置模型参数进行估计,获得生产线配置参数模型;在仿真软件的环境下,采用模型设计器通过基础数据,并分别从生产线配置参数模型和逻辑管理程序库中选择匹配的建模对象,以生产线配置参数模型实例化过程替代从无到有的模型创建过程,实现仿真生产配置参数建模。实验验证该系统能够自主完成生产配置参数建模,对生产配置参数值的估计精度高。

In order to improve the maintainability of the production control system,a parametric modeling method for the production line is proposed,that is the production configuration parameter modeling system based on least square method.In the system,the least square method is used to determine the structure of the production line configuration model,and the recursive least square method is used to estimate the parameters of the production line configuration model,so as to obtain the production line configuration parameter model.In the environment of simulation software,the model designer is used to select the matching modeling objects from the production line configuration parameter model and the logic management program library by means of the basic data,and the instantiation process of the production line configuration parameter model is used to replace the model creation process starting from scratch,so as to realize the simulation production configuration parameter modeling.The experimental results show that the system can complete the production configuration parameter modeling independently and estimate the production configuration parameter value with high accuracy.