基于单片机的电机转速采集系统设计毕设论文.doc

西安航空职业技术学院 毕 业 设 计（论 文） 论文题目：基于单片机的电机转速采集系统 　所属系部: 电子工程系 指导教师： 职　　称： 学生姓名： 学　　号: 专　　业：应用电子技术 西安航空职业技术学院制 摘 要 在工程实践中，电机转速是一个非常重要的信息，它能反映出电机运行是否正常，因此采集转速是工业中常用的监测电机的方法之一。随着单片机的的广泛应用和传感技术的发展，现代化的工业生产中电机转速采集普遍采用以单片机为核心的数字式测量方法。 本论文便是设计运用AT89C51单片机控制的智能化转速采集系统。它可以对电机转速进行测量，并可以和PC机进行通信，显示电机的转速，并观察电机运行的基本状况。 本论文主要以AT89C51作为控制核心，LED数码显像管、、详细介绍了PC机与单片机之间的串行通讯。充分发挥了单片机的性能。其优点硬件电路简单，软件功能完善，控制系统可靠，性价比较高等特点Abstract In engineering practice, often encounter a variety of occasions, the motor speed to be collected, collecting motor speed of the method is divided into two kinds of analog and digital. Analog tachometer generator for the detection of components used to obtain the signal is analog. Commonly used digital optical encoders, Hall sensors and other devices for the detection of the resulting signal is the pulse signal. With the extensive application of micro-computer, especially the emergence of high-performance and low cost microcontroller, commonly used to collect speed microcontroller as the core digital measurement method . This is based on AT89C51 microcontroller using speed intelligent collection system. The motor during operation, need to be monitored, the speed is an essential parameter. This system is the right motor speed is measured, and machines can communicate with PC, display the motor speed, and observe the basic conditions of the motor is running. The design is mainly used as a control core AT89C51, from Hall sensor, LED digital tubes, HIN232CPE level conversion, and RS232 composition. Detailed measurement of the microcontroller system and PC-speed serial communication between the microcontroller. Give full play to the performance of the microcontroller. This article focuses on the motor speed is collected and displayed in the five LED digital tube. Keywords: MSC-51 (SCM); motor speed; Hall sensor