2.4萬字 有設(shè)計(jì)圖和程序代碼
摘 要
系統(tǒng)主要實(shí)現(xiàn)功能是:AT89C51單片機(jī)接收霍耳傳感器傳來的脈沖信號,單片機(jī)根據(jù)外部中斷,以及內(nèi)部定時(shí)器進(jìn)行記數(shù)計(jì)算出電機(jī)轉(zhuǎn)速送到LED顯示，同時(shí)數(shù)據(jù)傳給PC機(jī),并在PC機(jī)屏幕上顯示出來。記錄各時(shí)段的轉(zhuǎn)速，畫出V-T坐標(biāo)圖。
本設(shè)計(jì)主要用AT89C51作為控制核心，由霍爾傳感器、LED數(shù)碼顯、HIN232CPE電平轉(zhuǎn)換、及RS232構(gòu)成。詳細(xì)介紹了單片機(jī)的測量轉(zhuǎn)速系統(tǒng)及PC機(jī)與單片機(jī)之間的串行通訊。充分發(fā)揮了單片機(jī)的性能。本文重點(diǎn)是測量速度并顯示在5位LED數(shù)碼管上。

關(guān)鍵字
MSC-51（單片機(jī)），轉(zhuǎn)速、傳感器

Abstract

For adjusting the stability of the electrical machinery when it runs, take notes the record about the tachometer per minutes; draw the coordinate charter between tachometer and time.
This design mainly applies AT89c51 to control core and combine sensor, LED, HIN232CPE, and RS232.this design introduce the system of tachometer measurement of MCU.
The send and receiver of the date take the full use of the natural capacity of MCU. The key of this paper is to measure tachometer and manifest it on LED.
The advantages are simple hardware electrical circuit, perfect software competence, high-speed measurement, high accuracy, reliable control system, relatively high price and other features

Keyword

MSC-51(One-chip computer), sensor, tachometer


目 錄
序言
第一章 系統(tǒng)分析
第二章 系統(tǒng)總體設(shè)計(jì)
第三章　硬件電路設(shè)計(jì)
第四章 軟件設(shè)計(jì)
第五章 調(diào)試 參考文獻(xiàn)
致謝
附錄