基于LabVIEW和DSP的数据采集与监测系统

自主设计数字信号处理器最小系统,利用其高速数据处理能力和丰富的片内资源完成对目标信号的采集与处理,结合典型数据处理算法设计数字滤波器,以满足数据采集的高精度要求。在CCS下完成系统初始化、数据类型转换等程序设计,并在LabVIEW平台设计上位机界面。基于串口通信协议,利用SCI接口实现处理器与PC机间的数据传输。采用高精度温控箱进行的系统试验验证分析结果表明:系统对温度信号的采集误差可保证在±0.05℃范围内,同时上位机界面实现了对目标信号的实时监测。

Data Acquisition and Monitoring System Based on LabVIEW and DSP

The minimum system of DSP processor was designed independently;through making use of its high-speed data processing ability and the chip''s abundant resources, the target signal''s acquisition and processing were completed.Combined with the typical data processing algorithm, a digital filter was designed to satisfy data acquisition at high accuracy;meanwhile, in CCS environment, having the system initialization implemented, including the data type conversion and the design of host computer interface at LabVIEW software platform;through having the serial communication protocol based, the data communication between PC and DSP was realized.Having the system tested with high precision temperature control box shows that, the error of the temperature signal acquisition stays within the range of ±0.05℃ and the interface of the host computer realizes real-time monitoring of the target signals.