毕业论文：基于LabVIEW的多通道数据采集系统（终稿）.doc

内蒙古科技大学 本科生毕业设计说明书（毕业论文） 题 目：基于LabVIEW的多通道数据采集系统 学生姓名：蒋林峰 学 号：200440503114 专 业：测控技术与仪器 班 级：测控2004级-1班 指导教师：肖俊生摘 要 Abstract Virtual instrument(VI)is combines computer science,bus technology,software engeneering with measurement instrumentation techology,employes the computers powerful digtal process compability to realize main function of instrument.It breakes the mainframe of traditonal instrument and forges a new instrument pattern. This project use NI PCI-6221 DAQ(data acquisition) card,ingeniously applyes VI technology in the development of a Multi-channel data acquisition develoment and finally achieves a solution which can provide many functions including multi-channel and multi-parameter signal acquisition,huge measurement information storage and management,Alarm record, and Collecting data show that real-time.Finally the use of Web technology to achieve the Acquisition of data remote access. This paper Introduced in detail the test technology in the domestic and foreign development and the later trend of development, then introduced the virtual instruments development. Study and reseach deeply VIs concept,hardware configuration and software architechture.Then introduce the development platform--LabVIEW.Introduced the theory of data acquisition, which elaborated on the acquisition of hardware, the input signal conditioning, given the DAQ system structure of the hardware.Based on the analysis of the DAQ system on the basis of functional requirements, described in detail the design used in some software-related technologies, including procedures modular design, database technology, Web technology, multi-threaded technology.The final chapter given the specific design of the font panel. This project is a successful application of VI in measurement domain,which testifies that VI is an available and effective solution and can be employed to accomplish majority complicated measurement task. Key words: Virtual Instrument; DAQ; MySQL; PHP; LabVIEW 目