12电极电容层析成像系统数据采集通信接口的设计  

Design of Data Acquisition and Communication Interface for 12-electrodes Electrical Capacitance Tomography System

作　　者：钟渊[1] 石文臣[1] 陈德运[1] 

机构地区：[1]哈尔滨理工大学计算机科学与技术学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2008年第1期39-41,共3页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金(60572153);国家教育部重点科技项目(204043);黑龙江省自然科学基金(F200609);黑龙江省重点科技攻关项目(GC05A510);哈尔滨市重点科技攻关项目(2005AA1CG035)

摘　　要：针对电容层析成像系统成像投影数据有限,传统的基于单片机的数据采集系统传输速度较慢,影响实时成像等问题,采用TMS320F2812数字信号处理器作为数据采集及通信的核心部件来组建电容层析成像系统,基于CCS2000开发环境,完成了传感器数据采集电路的控制软件开发,系统采用RS232串行接口完成下位机与上位机之间的数据采集及通讯,使用ACCESS数据库保存采集的数据,为系统静态图像重建提供数据,系统的采集速度满足实时成像的要求.In relation to the limited data of projection and the slower transmitting speed of data acquisition system which is based on SCM and has poor capacity of real-time imaging processing, TMS320F2812 is adopted as a kernel component to construct the data acquisition and communication part of the electrical capacitance tomography system. The software of control for the circuit of data acquisition is developed in the environment of CCS2000. The serial interface of RS232 is adopted as the interface of the data acquisition and communication between lower and upper. The acquisitive data is saved in the Access database, which provides data for the reconstruction of static im- age. The speed of data acquisition is suitable for the real-time imaging processing.

关 键 词：电容层析成像 串口通信 VC++ DSP 数据库 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]