基于嵌入式的HART协议智能变送器软件设计  

Software Design of Smart Field Transducer Based on HART Protocol

作　　者：杨笔锋[1] 杨明欣[1] 詹艳军[1] 

机构地区：[1]成都信息工程学院,四川成都610225

出　　处：《计算机测量与控制》2006年第11期1569-1571,1574,共4页Computer Measurement &Control

摘　　要：HART协议作为一个开放性的协议,现已成为智能仪表“事实上”的标准;其特点是在现有的模拟信号传输线上实现数字信号通信;嵌入式系统技术是目前电子产品设计领域最为热门的技术之一,目前已经广泛地应用在军事国防、消费电子、网络通信、工业控制等领域,但是在现场总线领域的应用是个新尝试;文章主要探讨了实时嵌入式系统在HART智能变送器中的应用,采用了嵌入式技术的HART智能变送器,不仅能够解决现场总线兼容原有的DCS问题,而且有了嵌入式微处理器和嵌入式实时操作系统,对系统整体的实时性、稳定性、抗干扰性、低功耗等性能有了极大的提高。Hart agreement as an open agreement has now become smart meters ＂ de facto＂ standard. Characterized by the existing analogue signal transmission to digital signal line communications. The embedded systems technology is one of the most popular technology in the area of electronic product design, now widely used in military and national defense, consumer electronics, network communications, industrial control, and other fields. But in the domain of field Bus the application of HART is a new attempt. The article features a real-time plug-in system in the colony wisdom transducer applications. Introduced an embedded smart Biansongqi Hart technology, not only can solve the original documentary bus compatible, but has an embedded microprocessor and an embedded real-time operating systems, the real-time nature of the system as a whole, stability, sexual interference, low consumption, performance has improved greatly.

关 键 词：现场总线 HART协议 智能变送器 嵌入式系统 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]