CAJ | 학술논문

根据目前粮食干燥控制系统存在的问题，提出了一种基于现场总线粮食干燥分布式控制系统。上位监控计算机采用EPCS-500嵌入式工控机，利用组态软件开发上位机界面，下位机采用带 CAN 总线的 P83 C591单片机作为各个智能测控节点，选用电容法对粮食含水率进行检测，利用单总线数字温度传感器芯片 DS18 B20测量干燥温度。研究设计表明，该分布式粮食干燥控制系统控制准确，控制参数和干燥工艺调整方便，线路少且维修方便，精度高且抗干扰能力强，价格低廉，能满足了粮食干燥实时测控的要求。
근거목전양식간조공제계통존재적문제，제출료일충기우현장총선양식간조분포식공제계통。상위감공계산궤채용EPCS-500감입식공공궤，이용조태연건개발상위궤계면，하위궤채용대 CAN 총선적 P83 C591단편궤작위각개지능측공절점，선용전용법대양식함수솔진행검측，이용단총선수자온도전감기심편 DS18 B20측량간조온도。연구설계표명，해분포식양식간조공제계통공제준학，공제삼수화간조공예조정방편，선로소차유수방편，정도고차항간우능력강，개격저렴，능만족료양식간조실시측공적요구。
A grain drying distributed controlling system based on CAN Bus is put forward according to the present dry controlling system .The upper computer adopted the EPCS-500 embedded engineering machine , making full use of con-figuration software to develop the upper computer interface .While for the lower computer , the P83 C591 SCM with CAN Bus is used as nodes of each intelligent controllers , detecting the grain moisture content with the use of the capacitance method and detecting the drying temperature with the use of the DS 18 B20 which is called the single bus digital tempera-ture sensor chip .It has been proved that this distributed grain drying controlling system is accuracy controlled .It can conveniently adjust the control parameters and the drying technology .With the less lines , it can be mended conveniently . It has high accuracy and is strong enough to withstand the interference .With low price it can fulfill the demanding of real-time measurement .