基于.NET反射技术的规约插件实现原理

针对SCADA系统中远动规约标准的不统一,在分析现有解决方案的基础上,提出了一种基于.NET反射技术的规约插件设计与实现原理。通过将规约处理模块封装成程序集,通信主程序利用反射技术动态加载该程序集,调用其中相关对象的接口函数以完成远动规约的转换。这种设计模式不仅简化了规约插件的开发和部署,而且避免了在W indows环境下所遇到的“DLL地狱”问题。这为SCADA系统中多厂家RTU的集成、多种远动规约的集成提供了灵活方便的解决方案。文中最后给出了用C#实现的具体方法和步骤。

An implementation principle of protocol plug-in based on technology of. NET reflection

In allusion to the different remote protocol standards in SCADA system,the paper analyzes available solutions and proposes a kind of new design and implementation principle of protocol plug-in based on.NET reflection technology.By using the reflection technology,main communication program loads the assembly dynamically in which the implementation module of protocol has been encapsulated and calls the interface procedure of object in the assembly to implement the task of translation of remote protocol.This design not only simplifies the complexity of development and deployment of protocol plug-in,but also avoids the 'DLL Hell' problem which is existing under Windows environment.As a result,an easy flexible solution scheme for integrating different remote protocols and different RTUs from different manufacturers in SCADA system is available.Finally,the paper presents its implementation method and procedure with C# in detail.