电梯光电编码器接口转换技术研究
发布时间：2019-01-04 15:02
【摘要】：如今电梯已成为人们进出高层建筑不可或缺的代步工具,而且作为载人工具,人们首先会关注它的安全质量问题,其次对它运行的平稳性、高速性、准确性、舒适性等一系列动、静态性能也提出了更高的要求。光电旋转编码器是用于电梯控制系统的关键部件,它能否实时、准确地反馈电动机转子角度信息至关重要。本文针对一款电梯控制系统常用的光电编码器——海德汉ERN1387进行了接口转换技术的研究。ERN1387是光电增量旋转编码器,它的优点是传输出连续的增量信号,除了能够提供普通增量编码器传输的A、B、R三路信号外还提供了C、D两路信号,它的线数是2048,精度能够达到±20″,是电梯控制系统中的一种高精度编码器。在对编码器输出的信号进行处理过程中,关键技术是电子学细分技术,它包括硬件细分和软件细分,其中软件细分是本文讨论的重点。硬件细分包括信号放大器、模数转换和数字运算三个部分。而软件细分的方法有多种,本文介绍了几种软件细分方法,选择了其中的正切插值细分算法对实际电动机编码器传输出的信号进行细分处理,通过STM32微控制器实现8倍细分。机电联调实验表明本文设计的编码器接口电路和软件细分程序是可行的,并对实验结果进行了误差分析。
[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 卤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.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU857;TN762
本文编号：2400444
[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 卤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.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU857;TN762
【参考文献】
相关博士学位论文 前1条
1 洪小圆;基于永磁同步电机的电梯运动控制研究[D];浙江大学;2012年
相关硕士学位论文 前1条
1 徐晓丹;增量式光电编码器的细分技术研究[D];长春理工大学;2010年
，本文编号：2400444
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