串口通信采集存储

使用For循环产生100个0~1之间的随机数，并同时判定当前随机数的最大值和最小值(For loop to generate 100 random numbers between 0 and 1, and at the same time to determine the minimum and maximum values ​ ​ of the current random number)

说明：  电机控制器的串口通信界面,基于labview visa,德马克电机(Serial communication interface of motor controller based on LabVIEW visa, demarcation motor)

关于labview的USRP编写的扫频信号，观察其时域和频域波形(On the sweep signal written by USRP of labview, the waveforms in time domain and frequency domain are observed.)

该程序基于labview2012研发，利用希尔伯特变换实现提取信号的包络。一部分是对AM信号的仿真实验，另一部分是其通用形式，只需拷贝到自己的引用程序中即可。(The program is based on the labview2012 , the use of the Hilbert transform to extract the signal envelope. Part of the AM signal simulation, another part is in its generic form, can be simply copied to the reference program.)

说明：  基于转速环-电流环双闭环控制的直流电机调速系统的labview上位机程序。(The LabVIEW upper computer program of DC motor speed control system based on double closed-loop control of speed-loop and current-loop.)

该VI已把电机动态模型封装成一个模块,因此使用者不必关心电机的内部结构,只需输入电机的各参数就可以方便地进行仿真,而且仿真的各种变量结果稳定可靠,并可以根据需要,调节仿真步长,提高仿真的精度。 (The dynamic model of the motor VI has packaged into a module, so users do not care about the internal structure of the motor, simply enter the motor parameters can easily be simulated, and the simulation results of various variables stable and reliable, and may need , adjust the simulation step, to improve the accuracy of the simulation.)

labview编写的PID控制程序很实用，可以参考对于用labview编写控制程序的人来说很好(the labview written PID control procedures is very practical reference for the people who write the control program using labview)

labview制作系统登录界面 包含数据库，拥有用户管理等功能，可直接用于工程项目。(labview production system login interface contains a , with user management functions, it can be directly used for engineering projects.)

该vi主要是一台简单的单通道数字示波器，实现数据采集、波形显示、信号处理、波形存储等(The main vi is a simple single-channel digital oscilloscope, data acquisition, waveform display, signal processing, waveform storage, etc.)

本文主要论述了基于LabVIEW 的身份验证登录程序的设计与实现原理, 讨论了建立用户信息数据库以及LabVIEW与数据库的连接方式的选择,LabSQL工具的应用,实现了根据用户信息数据库进行身份验证的功能, 符合数据库信息的用户方能成功登录, 可以方便地嵌入已有的以LabVIEW 为开发工具的测控系统中。(This paper discusses the design and realization of the principle of identity validation based on LabVIEW login program, user information database as well as the choice of LabVIEW and database connections, LabSQL tool applications based on the user information database authentication user database information can be successfully logged and can be easily embedded the existing LabVIEW as the development tool measurement and control system.)