变频器控制(485)

1．采用Labview设计一虚拟函数信号发生器， 通过数据采集卡输出波形信号，调节信号的相关参数，可观察示波器上波形的变化情况。 ⑴ 以NI MyDAQ数据采集卡作为输出接口； ⑵ 数据采集卡输出多种信号，至少完成三种波形：正弦波、三角波、方波(可调占空比)的输出，同时前面板上显示各输出波形； ⑶ 频率、幅值、初相位、直流偏移量和方波的占空比（0～100 ）等参数可以通过前面板控件调节。 ⑷ 前面板可显示输出波形。(1. Labview design using a virtual function signal generator, data acquisition card output waveform signal, adjust the relevant parameters of the signal can be observed on an oscilloscope waveform changes. ⑴ with NI MyDAQ data acquisition card as output interface ⑵ data acquisition card output a variety of signals, to complete at least three waveforms: sine wave output, triangle wave, square wave (adjustable duty cycle), while each of the output waveform is displayed on the front panel ⑶ frequency, amplitude, initial phase, the DC offset and duty cycle square wave (0 to 100 ) and other parameters via the front panel controls to adjust. ⑷ output waveform can be displayed on the front panel.)

一个上位机测控软件，采样Labview2011编写，主要功能的和下位机通信，向下位机下发控制指令，并实时显示处理下位机上传的采集数据。(A PC control software, sampling Labview 2011 write, and communicate the main function of the lower down-bit machine control commands issued, and real-time data acquisition display processing lower computer to upload.)

labwindows CVI 8.0 下调试通过的gprs，建立过程和udp通讯。(with labwindows cvi8.0,gprs connection had been programmed,and udp test is ok )

说明：  labview很重要的例程，适用于labview新手(it is very important for the new student of labview ,very usful)

说明：  labview操作者架构，项目模板，面向对象编程(LabVIEW operator architecture, project template, object-oriented programming)

说明：  利用labview语言编写的声音采集程序，可以实现声音多通道的采集和分析，并显示采集到的信号波形(The sound acquisition program written in Labview language can realize the sound multi-channel acquisition and analysis, and display the acquired signal waveform)

利用labview，实现信号的中值-均值滤波(Using LabVIEW to realize median mean filter of signal)

基于生产消费者模式的多串口采集程序，用labview进行上位机处理(Serial port acquisition program, based on the pattern of production of consumer PC processing using labview)

labview调用dll实现QR二维码生成，包含dll说明等，可作为子vi直接使用(LabVIEW calls the DLL implementation of QR code generation, including DLL, can be directly used as a sub VI )

说明：  产生若干个周期的正弦波数据，以当前系统日期和自己的名字为文件名，分别存储 为文本文件、二进制文件和电子表格文件。(Create text file, data record file and write)