多参数水质检测仪控制与信号处理系统软件设计  

Software Design of Control and Signal Processing System for Multi-parameter Water Quality Detecting Instrument

作　　者：韩孝贞[1,2,3] 温志渝[1,2,3] 谢瑛珂[1,2,3] 魏康林[4] 周小峰[1,2,3] 

机构地区：[1]国家级微纳系统与新材料技术国际联合研究中心,重庆400044 [2]新型微纳器件与系统国家重点学科实验室,重庆400044 [3]重庆大学微系统研究中心,重庆400044 [4]三峡大学理学院,湖北宜昌443002

出　　处：《仪表技术与传感器》2014年第8期20-22,65,共4页Instrument Technique and Sensor

基　　金：科技部国际科技合作项目(2007DFC00040);国家"863计划"资助项目(2007AA042101)

摘　　要：针对基于微型光谱仪的多参数水质检测仪控制与信号处理的技术要求,在仪器控制与信号处理系统硬件设计的基础上,研究了基于嵌入式ARM的仪器控制与信号处理系统软件设计的原理与方法,进行了控制系统软件、信号处理系统软件及图形用户界面的设计,完成了系统联机调试实验。实验结果表明:控制与信号处理系统软件实现了对仪器硬件系统的精确控制,仪器检测水质参数的重复性好(相对标准偏差小于3%),准确度高(相对误差不大于±5%),满足在线水质检测的实际应用要求。According to requirements of the control and signal processing system of the multi-parameter water quality detecting instrument based on the micro spectrometer,and based on the hardware design of control and signal processing system for the instrument, the principles and methods of the software design of control and signal processing system for the instrument based on embedded ARM were studied. And the control module, the signal processing module and the graphical user interface of the software were designed, and the on-line debugging experiments of the system were conducted. The experiments results show that the software of control and signal processing system can control the hardware precisely. The instrument using this software has a good reproducibility （ relative standard deviation less than 3% ） and a high accuracy （ relative error less than ±5% ）, and it can meet the requirements of the water quality detecting.

关 键 词：水质检测 嵌入式系统 控制与信号处理 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]