And the inverter becomes smarter . during the designing , the pulse - processing ciucuit is preset which processes the feedback pulse from photoelectric encoder for close - looping the system in future . by using the circuit and quadrature mode of timer 1 in 80c196mc , incremental encoder can be embedded into the velocity regulation system more easily and the domain the inverter can be used in is enlarged too 在系统设计过程中，考虑到了变频调速器进一步改进为闭环系统的需要，在电路中预设了光电码盘反馈脉冲的处理电路，通过这个电路的处理，并利用80c196mc中定时计数器1的90相移计数工作方式，可大大简化使用增量式光电码盘时脉冲处理的复杂度，这也扩大了本文中变频调速器的应用范围。
A novel measurement and control system ( mcs ) used in hv flameproof switchgear has been established based on the 80c196kb single - chip microprocessor , by which electrical faults such as short circuit , over - load , over - voltage , open circuit , earth leakage and so on can be automatically distinguished and processed , and with the exception of this , the insulation degree of the double screen cables is monitored on - line . the operating condition and fault parameters can be displayed in turn with liquid crystal display 该系统能自动判断短路、过载、过压、欠压、漏电等故障，并对高压电缆的绝缘水平进行实时监测，大屏幕液晶显示器实现了电太原理工大学硕士学位论文网参数的轮流显示，通过拨码盘输入系统各项整定参数，真正实现了保护系统数字化。
Thirdly , the article describes the system on a programmable chip ( sopc ) based on niosii . it mainly contains the design of the niosii soft - core processor , the vhdl programming of the module of the sensor ’ s digital signal acquisition , the encoder signal processing and the motor control signal creating 再次,设计了基于niosii的可编程片上系统( sopc ) ,主要包括传感器数字信号采集模块、码盘信号处理模块以及电机控制信号生成模块的vhdl程序设计和niosii软核处理器模块的设计。
Abstract : the method of positioning synchronous control used pho toencoder as position measure and s5 - 100u plc is introduced in this paper . this system has advantages of high control accuracy , high reliability and low cost etc . in practice 文摘:介绍了在全数字控制系统中利用光电码盘作为位置检测,利用s5 - 100u可编程序控制器完成位置同步控制的一种方法,并以推钢机系统为例介绍此同步控制方法的硬件构成及软件特点,通过实际应用表明,本系统具有控制精度高,可靠性强,成本低等优点。
