基于AVR单片机的压力控制系统设计  

Design of Pressure Control System Based on AVR

作　　者：刘运学[1,2] 郎智明[1] 钟华[1] 吴镇炜[1] 

机构地区：[1]中国科学院沈阳自动化研究所,辽宁沈阳110016 [2]中国科学院研究生院,北京100049

出　　处：《计算机测量与控制》2011年第9期2170-2172,共3页Computer Measurement &Control

摘　　要：为了满足爆炸性气体环境电气设备国家标准(GB3836),煤矿救援机器人在满足隔爆标准的基础上,还采用了正压型电气设备标准,为机器人提供双重安全保障;以AVR单片机作为控制器核心,设计出一套压力控制系统;采用压力传感器、压差传感器、温度传感器作为传感元件,电磁阀为执行元件,通过压力测试实验,绘制出系统压力变化曲线,证明该系统能始终保持车体压差在允许范围,通过滤波,系统抗干扰能力强,无误动作;该控制系统可自动/手动控制模式切换,可靠性高,完全能够满足国家标准防爆要求。In order to meet the electrical equipment ＇s national standards for explosive gas atmospheres, on the one hand, robots have been met coal mine explosion--proof standards, on the other hand, the robot also uses a positive electrical equipment standards, which pro- vide double security for the robot. With AVR MCU as the core of controller, designed a set of pressure control system. Using pressure sen- sors, differential pressure sensor, temperature sensor as the sensing element, solenoid valve as actuator, by stress testing experiment, the pressure curve have been drown , to prove that the body can always keep pressure within the allowable range. By filtering algorithm, we have very accurate reading of sensors and strong anti--interference. It can also manual / automatic switch freely, fully able to meet the na- tional standard explosion--proof requirements.

关 键 词：煤矿救援机器人 隔离/正压防爆 AVR 压力控制系统 压力/压差传感器 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]