基于PIC单片机的粉料物料运输车自动卸料系统设计  

Design of Auto Unloading Controller Based on The Pic Microcontroller in Powdery Material Truck

作　　者：丁茂红 谢荣芳[2] 欧笛声[1] 

机构地区：[1]广西科技大学机械工程学院,广西柳州545006 [2]广西科技大学电气与信息工程学院,广西柳州545006

出　　处：《科技视界》2014年第4期128-128,177,共2页Science & Technology Vision

摘　　要：首先,设计控制电路并利用光电耦合元件PC827,将PIC16F877A单片机引脚信号与电磁驱动器电路进行隔离,减少外界干扰单片机输出信号,防止电磁执行器的误操作。其次,利用PIC16F877A单片机A/D转换模块,将工作时粉料物料运输车罐体内气压表的模拟电压转换成数字信号,通过LED实时显示当前的气压值。最后,在MPLAB上利用HI-TECH PICC编译器编写控制程序,并通过Proteus在线仿真进行验证。In order to prevent the wrong action for the actuator ,photo-coupler PC827 is used first to design control circuit to insulate interference between PIC16F877A microcontroller and the electromagnetic drive circuit. A/D conversion module of PIC16F877A microcontroller is also used to convert air pressure into digital signals in the powder material truck of working and display the current air pressure value by the real-time LED. Eventually, control program is compiled by the HI-TECH PICC compiler on MPLAB and Validated by online simulation in Proteus.

关 键 词：单片机 A D转换 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]