明渠非接触式流量计的设计

描述了DSP 控制实现的明渠非接触式流量计，对非接触式流量计的数据采集结构及通信接口电路组成做了详细讨论。介绍了在多数据量采集以及实时处理的要求下，采用数字信号处理器TMS320LF2407A实现采样运算的方案。采用FIR 算法对采样数据进行数字低通滤波，将数据通过串行口传送到上位机实现远程监控。根据所提出的方案研制了一台基于TMS320LF2407A 明渠污水流量计。
关键词： DSP 污水流量计 多数据量采集 数字滤波 通信
Abstract: Describing the open channel flowmeter implementation based on digital signal processor TMS320LF2407A, discussing in detail data acquisition structure and communication interface circuit compositon. Under the demand for multi-data acquisition and real-time processing, adopting digital signal processor TMS320LF2407A to realize the scheme of sampling arithmetic. Accomplishing digital low pass wave filtering to sampling data with FIR algorithm, Realizing remote control through serial port and data is conveyed to upper
level computer. According to the schemes,developing a open channel flowmeter based on TMS320LF2407A.
Keywords: DSP；sewage flowmeter；multi-data acquisition；digital filtering wave；485 communication interface circuit