Modbus ni

用labview实现振动信号采集,用于机械故障诊断，路形检测等(Realize vibration signal acquisition with labview for mechanical fault diagnosis, road shape detection)

LabView学习资料Word版，包含：入门介绍，程序结构，数组、簇和图形，图形显示，字符串和文件，数据采集，信号分析和处理，模拟输入信号连接，公式节点语法，显示一个数据信号的步骤等。(Word version of LabView learning materials, including: Getting Started Introduction, program structure, array, cluster and graphics, graphical display, the string and documentation, data acquisition, signal analysis and processing, analog input signal connections, the formula grammar node, indicating a data signal steps.)

机械振动信号的自相关分析，对其进行周期成分检测(Autocorrelation analysis of mechanical vibration signals to detect its periodic components)

主要包含经纬高信息、北天东坐标系、地心坐标系之间的坐标转换，用labview实现的。(It mainly includes the coordinate transformation between the latitude and longitude information, the North East coordinate system and the geocentric coordinate system. It is realized by LabVIEW)

说明：  Labview battery tester

用labview做的一个登陆界面的小程序，起到加密的作用(Labview to do with the interface of a small landing procedures, has played the role of encryption)

点频扫频程序，可以选择振幅，相位，频率变化包括线性变化和指数变化，每个频率点保持时间可调(Point frequency sweep program, you can choose the amplitude, phase, frequency changes include linear change and exponential change in each frequency point adjustable hold time)

使用usrp n210,利用Labview实现正弦信号收发，一方面可以利用labview实现实际信号在空中收发，另一方面可以检验设备正常运行。(Using USRP N210 and Labview to transmit and receive sinusoidal signals, on the one hand, it can use LabVIEW to transmit and receive actual signals in the air, on the other hand, it can check the normal operation of the equipment.)

峭度指标是非平稳信号故障诊断的重要参数。峭度指标对信号中的冲击成分十分敏感，冲击成分能量越大，其峭度值就会越大，在故障诊断的时域分析中十分重要。本文件中将其独立做成了一个子vi，便于程序直接调用。(Kurtosis index is an important parameter of non-stationary signal fault diagnosis. The kurtosis index is very sensitive to the impact component in the signal. The greater the energy of the shock component, the greater the kurtosis of the signal, and it is very important in the time domain analysis of the fault diagnosis. This document will be independent of a sub VI, to facilitate direct calls to the program.)

Labview与变频器的485通讯实现代码，包含CRC校验子VI。(The 485 communication code between Labview and frequency converter includes CRC checker VI.)