【摘要】：如今電梯已成為人們進(jìn)出高層建筑不可或缺的代步工具,而且作為載人工具,人們首先會(huì)關(guān)注它的安全質(zhì)量問題,其次對(duì)它運(yùn)行的平穩(wěn)性、高速性、準(zhǔn)確性、舒適性等一系列動(dòng)、靜態(tài)性能也提出了更高的要求。光電旋轉(zhuǎn)編碼器是用于電梯控制系統(tǒng)的關(guān)鍵部件,它能否實(shí)時(shí)、準(zhǔn)確地反饋電動(dòng)機(jī)轉(zhuǎn)子角度信息至關(guān)重要。本文針對(duì)一款電梯控制系統(tǒng)常用的光電編碼器——海德漢ERN1387進(jìn)行了接口轉(zhuǎn)換技術(shù)的研究。ERN1387是光電增量旋轉(zhuǎn)編碼器,它的優(yōu)點(diǎn)是傳輸出連續(xù)的增量信號(hào),除了能夠提供普通增量編碼器傳輸?shù)腁、B、R三路信號(hào)外還提供了C、D兩路信號(hào),它的線數(shù)是2048,精度能夠達(dá)到±20″,是電梯控制系統(tǒng)中的一種高精度編碼器。在對(duì)編碼器輸出的信號(hào)進(jìn)行處理過程中,關(guān)鍵技術(shù)是電子學(xué)細(xì)分技術(shù),它包括硬件細(xì)分和軟件細(xì)分,其中軟件細(xì)分是本文討論的重點(diǎn)。硬件細(xì)分包括信號(hào)放大器、模數(shù)轉(zhuǎn)換和數(shù)字運(yùn)算三個(gè)部分。而軟件細(xì)分的方法有多種,本文介紹了幾種軟件細(xì)分方法,選擇了其中的正切插值細(xì)分算法對(duì)實(shí)際電動(dòng)機(jī)編碼器傳輸出的信號(hào)進(jìn)行細(xì)分處理,通過STM32微控制器實(shí)現(xiàn)8倍細(xì)分。機(jī)電聯(lián)調(diào)實(shí)驗(yàn)表明本文設(shè)計(jì)的編碼器接口電路和軟件細(xì)分程序是可行的,并對(duì)實(shí)驗(yàn)結(jié)果進(jìn)行了誤差分析。
[Abstract]:Today the elevator has become an indispensable tool for people to move in and out of high-rise buildings, and as a human tool, people first pay attention to its safety and quality, and then to its smooth, high speed, accuracy. Comfort and a series of dynamic and static performance also put forward higher requirements. Photoelectric rotary encoder is the key component of elevator control system. It is very important to feedback the rotor angle information of motor in real time and accurately. In this paper, the interface conversion technology of Hyderham ERN1387, a photoelectric encoder commonly used in elevator control system, is studied. ERN1387 is a photoelectric incremental rotary encoder, whose advantage is to transmit continuous incremental signals. In addition to the three channel signals of Agna BU R, which can be transmitted by ordinary incremental encoder, two channels of Con D signal are also provided. The number of lines is 2048 and the precision can reach 鹵20 ". It is a kind of high precision encoder in elevator control system. In the process of processing the output signal of encoder, the key technology is electronic subdivision, which includes hardware subdivision and software subdivision, among which software subdivision is the focus of this paper. Hardware subdivision includes signal amplifier, A-D conversion and digital operation. There are many methods of software subdivision. This paper introduces several software subdivision methods, selects the tangent interpolation subdivision algorithm to subdivide the signal transmitted by the actual motor encoder, and realizes 8 times subdivision by STM32 microcontroller. The experiment shows that the interface circuit and the software subdivision program designed in this paper are feasible, and the error analysis of the experimental results is carried out.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU857;TN762

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本文編號(hào)：2400444