一种多功能集成的海外远方数据终端的研制

Development of a Multifunctional Integrated Remote Terminal Unit for the Overseas

RTU(Remote Terminal Unit)在海外自动化市场中占据着非常重要的地位,功能需求也在不断变化。文中针对海外老站改造及新建站对IO采集、通讯接入及高级应用的需求,提出了一种多功能集成的RTU终端设计思路。该终端采用面向对象设计思想,分解和细化各项功能到各个子系统。IO采集子系统提供了基本的硬信号接入功能,通讯功能子系统提供了更稳定、更庞大的规约库支持,高级应用子系统提供改善电网经济运行的附加功能。研发成功的RTU终端已经成功应用在新加坡等地,运行结果可靠稳定,能够满足用户需求。

RTU（Remote Terminal Unit） plays a very important role in the oversea automation market, and the user＇s function need is changing. According to the renovation of old station and building of new station in the overseas, for the needs of IO acquisition, communication access and advanced applications, a multifunction integrated RTU design is proposed in this paper. A method of object-oriented, decomposition and refinement of the function to each subsystem is used in RTU design.IO acquisition subsystem provides access to the basic function of the hard signal, communication subsystem provides more stable and large protocol libraries, and advanced application subsystem provides additional features to improve the economic operation of the power grid. The RTU terminal has been successfully applied in Singapore and the operation is reliable and stable. The proposed RTU can meet the needs of users.