基于多线程并行模式的数据采集系统设计

The Design of Data Acquisition System Based on Multi-thread Parallel Mode

针对专用数据采集卡成本高和传统编程代码专业性要求太高的不足,借助Lab VIEW软件,设计了基于声卡的数据采集与处理系统;该系统采用多线程并行模式进行程序设计,分为数据采集、数据处理和波形显示三大模块,测试结果表明该系统具有设计简便、采样精度高、扩展性好等特点.

In order to overcome the shortcomings of high cost of specialized data acquisition and high professional requirement of traditional programming code,this paper designs data acquisition and processing system based on sound card by using Lab VIEW software. Multi-thread Parallel Model is applied in the system including data collection module,data processing module and waveform display module. The experimental results prove that the system has advantages of simple design,high sampling precision and good expansibility.