题 目：基于 LabVIEW 和 PCI-6221 板卡多路数据采集系统设计基于 LabVIEW 和 PCI-6221 板卡多路数据采集系统设计摘要在生产过程中，应用数据采集系统可对生产现场工艺参数进采集、监视和统计，为提升产品质量、降低成本提供信息和手段。在科学讨论中，应用数据采集系统可取得大量动态信息，是讨论瞬间物理过程有力工具，也是猎取科学神秘关键手段之一。总而言之，不管在哪个应用领域中，数据采集和处理越立即工作效率就越高，取得经济效益就越大。文章关键内容就是在综合了虚拟仪器技术特点之上提出了一个基于 LabVIEW 和PCI-6221 板卡多路数据采集系统实现方法，首先介绍了虚拟仪器总线及其标准、框架结构、数据采集相关理论，然后给出了数据采集系统硬件结构图。在分析本系统功效需求基础上，介绍了程序模块化设计、数据库、Web、多线程等技术，最终关键介绍了应用 LabVIEW 8.5 开发平台实现数据采集系统方法，给出了设计前面板及程序框图。该系统含有多路数据采集、实时显示、历史数据回放和报警统计等功效，而且利用 labSQL 数据库访问技术，实现了采集数据存放。另外，还使用 Web 技术实现了对系统远程访问及控制。关键词：虚拟仪器；数据采集；PCI-6221 板卡；曲线显示；labSQL 数据库The Design Of Multi-channel Data Acquisition System On Based Of LabVIEW And PCI-6221 Acquisition BoardAbstractIn the production process, the application of data acquisition system at the scene of the production process parameters into the collection, monitoring and recording, in order to improve product quality, reduce costs and means of providing information. In scientific research, applied data acquisition system will be a lot of dynamic information, is to examine the physical processes of the moment a powerful tool, but also access to scientific mysteries of one of the important means. In short, regardless of which applications, data acquisition and processing more efficient and timely work of the higher, the greater the economic benefits yielded. The main context of the design is a combination of the characteristics of v...
