基于WPF的水槽控制及数据采集系统设计与实现  

Design and realization of flume control and data acquisition system based on WPF

作　　者：周琦[1] 江春波[1] 陈正兵 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [2]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《实验技术与管理》2018年第3期78-83,共6页Experimental Technology and Management

基　　金：国家自然科学基金项目"城市洪水与障碍物耦合作用动力机制研究"(51679121)

摘　　要：以WPF为平台开发了一套水槽流量控制及数据采集与处理系统,通过RS485总线连接数据采集器和变频控制器,以Modbus RTU为通信协议,实现PC上位机图形界面软件与数据采集器的通信。采集系统可同步采集水位和流量数据,并得到频率-流量关系式及对应的水深-流量关系。针对采集数据出现的异常值使用基于中值过滤后标准差的修改拉依达算法进行检测和剔除,算法计算结果很理想。A set of the laboratory flume control,and data acquisition and processing system is designed based on the WPF platform.The data collector and variable frequency controller are connected through the RS485 bus to realize the communication between the graphical interface software of the PC upper computer and the data collector.The acquisition system can synchronously collect the water level and flow data,and obtain the frequency-flow relation and corresponding water depth-flow relation.In view of the abnormal value which appears in the data acquisition,the modified Pauta algorithm of the standard deviation based on median filtering is used to carry out the detection and elimination,and the calculation results of the algorithm are ideal.

关 键 词：水槽控制 数据采集 WPF RS485 MODBUS 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]