labview 实现数据流收发

labivew,PC、移动终端（平板、Android/IOS手机）、无线路由器（数据交换媒介）。PC及手机都需要连接到路由器上。(LabIVEW, PC, mobile terminals (tablet, Android/IOS mobile), wireless router (data exchange medium). Both PC and mobile phones need to be connected to a router.)

本程序基于labview8.2开发平台，实现小波变换检测回波的功能(The program is based on labview8.2 development platform, to achieve the function of echo using wavelet transform)

使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的：用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求：①输入信号为一正弦波，并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号（用以模拟含有噪声采样序列）。 （模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现，为了使滤波效果明显，本实验的高频噪声是用高频均匀分布白噪声（Uniform）通过Butterworth高通滤波器过滤生成的，高通滤波器的截止频率设为10倍输入信号频率。） ②在程序中设计一个低通巴特沃斯滤波器，以滤除信号中的噪声分量，提取输入的正弦波信号 。 ③可调节信号滤波器的截止频率和阶数，可显示滤波前与滤波后的时域信号。 ④给出滤波前与滤波后的频谱特性的显示。 (Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)

labview程序，可以接收和发送modbus rtu协议信息。“CRC VHL”为循环冗余校验(Labview program)

用于xmodbus方式通讯。使用labview编制CRC16-XMODEM.vi(Kaubamaja for Xmodbus communication. Using LabVIEW establishment.CRC16-XMODEM.vi)

以永磁同步电机的控制为背景，设置电机与上位机的串口Labview编程 (In control of permanent magnet synchronous motor as the background, setting machine and the superordination machine serial interface Labview programming )

FOR循环计算0——99偶数的和，用到for循环以及移位寄存器(FOR loop calculates the sum of 0-99 even numbers, using for loop and shift register)

利用双光子纠缠方法进行双路轨道角动量光学鬼成像过程。(Using two-photon entanglement the dual orbital angular momentum of optical ghost imaging process.)

1、掌握利用A/D转换和计算机资源实现示波器的设计方法。 2、设计虚拟示波器。 3、建立NI-DAQmx仿真设备，选择E系列中的NI PCI-6071E数据采集卡的仿真模块，通过DAQmx物理通道识别，产生模拟信号，然后基于LabVIEW开发平台设计实现虚拟示波器。(1, master the use of A/D conversion and the design method of the computer resources to realize the oscilloscope. 2, the design of virtual oscilloscope. 3, establishment of NI- DAQmx simulation equipment, select the NI PCI- 6071- E E series simulation module of data acquisition card via DAQmx physical channel identification, produce analog signal, and then design the virtual oscilloscope based on LabVIEW development platform.)

故障频率计算程序，计算轴承各部件的故障频率(Failure rate calculation program to calculate the bearing parts of the fault frequency)