電梯速度監(jiān)測儀

電氣自動化論文編號:ZD923    論文字?jǐn)?shù):10585,頁數(shù):27

目 錄
摘  要 I
1前 言 1
1.1課題背景和意義 1
1.2課題的研究現(xiàn)狀與發(fā)展趨勢 1
1.3課題的主要內(nèi)容與目標(biāo) 2
1.3.1主要內(nèi)容 2
1.3.2設(shè)計(jì)目標(biāo) 2
2 設(shè)計(jì)方案的選擇 3
2.1傳感器的介紹 3
2.1.1光電傳感器 3
2.1.2霍爾傳感器 4
2.2 本課題所選方案 4
3 主控制器 6
3.1單片機(jī) 6
3.2本課題所選單片機(jī)介紹 6
3.2.1 LPC764 6
3.2.1 STC12C2052 8
4 系統(tǒng)硬件設(shè)計(jì) 10
4.1 系統(tǒng)功能描述 10
4.1.1 系統(tǒng)功能框圖 10
4.1.2 系統(tǒng)主要功能 10
4.2系統(tǒng)硬件結(jié)構(gòu) 10
4.3 LED顯示 12
4.3.1 LED數(shù)碼管顯示概述 12
4.3.2 LED顯示方法 13
4.3.3 LED顯示設(shè)計(jì)及實(shí)現(xiàn) 13
4.4警報(bào) 15
4.4.1蜂鳴器的作用 15
4.4.2蜂鳴器的分類 15
4.4.3報(bào)警電路 16
4.5 系統(tǒng)總體設(shè)計(jì)及電路圖 16
5 系統(tǒng)軟件設(shè)計(jì) 18
5.1軟件設(shè)計(jì)概述 18
5.2程序流程框圖 18
6 結(jié)果與分析 20
7系統(tǒng)設(shè)計(jì)總結(jié) 21
致 謝 22
參考文獻(xiàn) 23

 摘  要
 本文設(shè)計(jì)的電梯速度監(jiān)測儀是一種用于實(shí)時監(jiān)測電梯運(yùn)行速度和狀態(tài)的儀器。具有參數(shù)設(shè)置﹑瞬時速度和方向顯示﹑以及故障報(bào)警等功能。本設(shè)計(jì)采用的是反射式光電傳感器作為速度和方向的敏感元件，集光信號發(fā)射和接收于一體，至反射板的感應(yīng)距離可達(dá)2 m，單片機(jī)根據(jù)吸光擋板的長度和光路被隔斷的時問算出電梯的瞬時速度。兩個子系統(tǒng)采用不同的工作時鐘和不同中斷機(jī)理的信號輸入部件，極大地提高了監(jiān)測儀的可靠性[1][2]。電梯速度監(jiān)測的目的旨在以最少的人員配備來加強(qiáng)對電梯的管理,提供較為直觀,清晰,準(zhǔn)確的電梯運(yùn)行狀態(tài),進(jìn)而為維修和故障診斷提供多方面的可能性,充分提高系統(tǒng)的工作效率。為這個電梯廣泛使用的社會減少甚至避免電梯事故的發(fā)生。

 關(guān)鍵詞：電梯,速度監(jiān)測,光電傳感器,單片機(jī)

 Abstract
 This design is an elevator speed monitor for real-time monitoring of elevator speed and status of equipment. With the parameters set instantaneous speed and direction of Display, and fault alarm functions. The design uses the reflective photoelectric sensors for the speed and direction sensor, infrared photoelectric optical signal transmitting and receiving sets in one, to reflective plate of the sensing distance of up to 2 m, SCM baffle according to the length of light absorption and light way to be cut off the elevator when asked calculate the instantaneous speed. Two subsystems with different working mechanism of the clock and interrupt signals with different input components, which greatly improved the reliability monitor. The purpose of monitoring the speed elevator to the minimum staffing to strengthen the management of the elevator, to provide a more intuitive, clear, accurate and elevator operations, and then for maintenance and fault diagnosis of various possibilities to fully enhance the efficiency of the system . Widely used for the elevator to reduce or even avoid social elevator accident.     
 Keywords：Elevator, speed monitoring, photoelectric sensor, single-chip