利用图形化编程工具 LabVIEW 和 EDA 工具 Proteus 设计了一个数据采集仿真系统。系统中上位机与下位机通过虚拟串口进行通信,下位机将采集的现场数据传送到上位机后,上位机即可画出波形并判断是否超限进行报警。设计表明,基于这两种软件建立一个仿真系统可以有效验证项目设计的正确性,从而缩短开发时间,降低设计成本。 Designing a Data Acquisition Simulation System Using Graphical Programming Tools LabVIEW and EDA Tools Proteus. In the system, the upper computer and the lower computer communicate through the virtual serial port. After the lower computer transmits the collected field data to the host computer, the upper computer can draw the waveform and judge whether the alarm is overrun. The design shows that the establishment of a simulation system based on these two kinds of software can effectively verify the correctness of the project design, which can shorten the development time and reduce the design cost.