提高IEEE1451智能传感器TII模型性能方法探讨

Research on the Methods of Improving IEEE 1451 Smart Sensor TII Model Performances

针对变送器独立接口(TII)应用技巧的多样性,重点分析TII协议的时序、数据线利用率,提出增加NACK翻转传输位数、合理增加缓存区及基于DIN、DOUT同步读取数据三种不同场合下实用化应用方法。通过建立基于LabVIEW的TII模型仿真环境,对提出的方法进行仿真测试。

According to the various practical techniques of Transducer Independent Interface （TII）,this paper analyzes the timing sequence and data line utilization ratio of TII protocol.It presents three practical methods in different applications,including increasing the data transport bits after NACK flips,increasing buffer reasonably and reading data synchronously on both DIN and DOUT.The TII model established in LabVIEW is used to simulate and test the proposal methods.