基于LABVIEW控制温室大棚

通过labview自动加1计数，给斑马打印机发送ZPL语言 打印标签(Send a ZPL language print label to a Zebra printer by adding 1 counts automatically by LabVIEW)

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.)

对信号进行采集和保存，其采样率默认为信号频率的10倍，并将采集到的信号数据保存到电子表格中(Save signal data acquisition and preservation of the signal, the default sampling rate is 10 times the signal frequency, and collected into a spreadsheet)

labview产生波形并显示，对波形图表的曲线控制(Labview generates waveform and displays it, and controls the curve of waveform chart)

通过labview的PID功能块对伺服电机进行闭环控制(The PID function block via labview servo motor closed-loop control)

说明：  基于TCP/IP协议的声音传输，包括上位机和下位机(Voice transmission based on TCP / IP protocol)

通过设置图形的属性节点，活动曲线以及曲线是否可见来实现用复选框控制对应曲线波形的有无，非常实用！(Set graphics attribute nodes activity curve, and the curve is visible to realize the presence or absence of the corresponding curve waveform check box control, very useful!)

利用Labview软件编写读取二进制文件程序(The Labview program reads the binary file)

基于LABVIEW的虚拟频谱分析仪，可以对任意信号以及采集卡采集到的信号进行频域分析，同时还加入了时域分析，使功能更为强大。(LABVIEW-based virtual spectrum analyzer can be arbitrary signals and the signal acquisition card for frequency domain analysis, and also joined the time-domain analysis, so that more powerful.)

读取excel表格中的数据，并在labview中通过曲线的形式进行体现(read the data the excel)