基于串行通信的虚拟仪器数据采集器

Data-Sampler for Virtual Instrument Based on Serial Communication

目前的虚拟仪器系统大多采用美国NI公司LabView平台 ,采用PCI总线结构的数据采集卡进行数据采集。主从式虚拟仪器技术在软件和硬件都摆脱了LabView的框套。该技术利用基于单片机的数据采集器进行A/D转换和预处理 ,通过RS - 2 32串行口与主机进行信息传送 ,插拔方便。主机通过数据处理软件对数据进行处理和分析。用户可以通过主机的软件界面对单片机 (从机 )进行控制 。

At present most Vitual Instrument Systems are developed based on LabView produced by NI and In those systems Data-Acquisition-Cards of NI are used.Introduces a virtual instrument system with a master-slave structure.The hardware and software of this system break away from the restrict of NI developing enviorment.This system uses a Data-Sampler based on microcontroller which communicate with a PC through RS-232 serial port.The data sampled by the Data-Sampler is processed by the data processing software installed on the PC.Users can control the Data-Sampler through the virtual control panel on the PC.