風(fēng)速儀設(shè)計
    

目   錄
1引言 3
2 設(shè)計原理 3
3 技術(shù)介紹 4
3.1 8031單片機 5
3．2 系統(tǒng)擴展、接口技術(shù) 5
3．3 三總線概述 6
3．4 中斷技術(shù) 7
4 軟件設(shè)計 8
4.1 測頻法與測周法 8
4．2 程序結(jié)構(gòu) 11
5 硬件設(shè)計 14
5.1 硬件結(jié)構(gòu)圖 14
5.2 地址所存器擴展電路 15
5.3 擴展程序存儲器電路 16
5.4擴展8155可編程外圍并行接口芯片 18
5.4.1  8155的結(jié)構(gòu)與引腳 18
5.4.2  8155的RAM和I/O口地址 18
5.4.3  8155的寄存器 19
5.4.4  8155芯片的使用 20
5.4.5 8031與8155的連接 20
5.5 顯示電路 21
6 結(jié)論 21
參考文獻 22
致謝 22
附錄： 24

摘要：本文介紹了一種基于Inter 8031單片機的風(fēng)速儀的設(shè)計,它利用測旋轉(zhuǎn)體的轉(zhuǎn)速測得風(fēng)速。本設(shè)計中采用8031單片機主要由于其內(nèi)部資源較為豐富，處理速度較快，因而可以在不擴充計數(shù)器的情況下實時的測量脈沖信號并轉(zhuǎn)化為轉(zhuǎn)速數(shù)據(jù)，進而可以轉(zhuǎn)變成線速度輸出。此外，本設(shè)計的主要目的雖然為風(fēng)速測量，但是當(dāng)對外部傳動部件做簡單修改以后不僅可以應(yīng)用在風(fēng)速的測量當(dāng)中，也可在轉(zhuǎn)速測量控制，車輛行駛速度測定，流速流量測量等方面發(fā)揮作用。
關(guān)鍵字：8031單片機，風(fēng)速儀，測周法與測頻法

ABSTRACT
This article introduced one kind based on the Inter 8,031 monolithic integrated circuits course-and-speed computers design, It uses measured  the rotational speed obtains the wind speed. In this design uses 8,031 monolithic integrated circuits mainly because its internal resources richer, the processing speed is quicker, thus may in does not expand the counter in the situation the real-time survey pulse signal and transforms as the rotational speed data, then may transform the line speed output. In addition, this design main goal although demonstrated for the wind speed, but when will make these impel revision to exterior transmission part later not only to be allowed to apply middle the wind speed survey, also might in the tachometric survey control, aspect and so on vehicles moving velocity determination speed of flow measurement play the role.

Key words:  8031 monolithic integrated circuits; Instrument of wind speed; The method of survey cycle and survey frequency.