摘 要
本論文介紹了微機(jī)直流伺服系統(tǒng)的工作原理和系統(tǒng)硬件設(shè)計(jì)概要。
本系統(tǒng)是以87C51單片機(jī)為控制核心,因此在這里以MCS-51單片機(jī)指令系統(tǒng)為基礎(chǔ)來(lái)實(shí)現(xiàn)單片機(jī)的鍵盤(pán)/顯示監(jiān)控、中斷、定時(shí)、計(jì)算等功能,和改進(jìn)了的位置式PID數(shù)字控制器來(lái)控制系統(tǒng)的運(yùn)行。系統(tǒng)可以通過(guò)鍵盤(pán)對(duì)PID參數(shù)進(jìn)行修改,然后進(jìn)行調(diào)試,找到最優(yōu)的參數(shù),達(dá)到系統(tǒng)的運(yùn)行指標(biāo)。在整個(gè)系統(tǒng)中是以鍵盤(pán)的監(jiān)視程序?yàn)橹行模韵到y(tǒng)的啟動(dòng)控制為目的,來(lái)實(shí)現(xiàn)控制直流伺服電動(dòng)機(jī)運(yùn)動(dòng),使輸出達(dá)到由鍵盤(pán)給定的轉(zhuǎn)角。整個(gè)系統(tǒng)是在按誤差控制的方式下設(shè)計(jì)的,要求建立閉環(huán)控制,故在直流伺服電動(dòng)機(jī)與信號(hào)給定(微機(jī)部分)之間建立信號(hào)反饋電路,該部分包括檢測(cè)和信號(hào)轉(zhuǎn)換電路。
關(guān)鍵詞: PWM脈寬調(diào)制 GTR 微機(jī) D/A 光電編碼器 伺服電動(dòng)機(jī)
Abstract
This thesis has recommended the servo systematic operation principle of direct current of the computer and systematic hardware to design outline. This system regards 87C51 one-chip computers as the core of controlling, Not at here it come based on MCS - 51 instruction system of one-chip computer realize the keyboards of one-chip computer /show controlling, cutting off, timings, function of calculating sects of, Function that the control system comes with the position type PID digital controller that is improved. The system can revise PID parameter through the keyboard , then debug, Find the optimum parameter, reach the systematic function index . Controlled for the purpose with systematic arrival by regarding procedure of monitoring of the keyboard as the centre in the whole system, Come to realize that control the sport of servo motor of direct current, enable exporting and reach from corner of the setting of the keyboard. Whole system in design according to way that error control, demand and set up and close ring control, So set up the feedback circuit of signal between the servo motor of direct current and signal setting( the part of computer), Part this including measuring and change the circuit with the signal.
Keyword: PWM pulse width modulates GTR The computer D/A photoelectricity encoder Servo motor