In recent years, programmable logic controller (PLC) has been widely used in engineering, which has attracted wide attention. Therefore, based on the analysis of the meaning and characteristics of the programmable controller, this paper discusses the application of the device in thermal power engineering, numerical control engineering and traffic control, so as to provide reference

Clutch motor is the most commonly used motor in the process of industrial sewing machine application. The obvious characteristics of this kind of motor are very high energy consumption and noise. In addition, the temperature rise is relatively obvious. In order to better improve the energy-saving efficiency of industrial sewing machine operation and enhance its

Industrial sewing machine servo energy-saving motor is the most important part of industrial sewing machine. In order to ensure its control accuracy, closed-loop control system is adopted. Energy-saving is also a very important direction in its development process. In the process of industrial sewing machine operation, we should combine software and hardware. In order to

Computer hard disk is an important part of hardware in computer system. The position control of hard disk read-write head is very important for the speed and accuracy of data read-write. Therefore, this paper presents a closed-loop advanced correction computer disk head position controller. Through the simulation analysis, we can see that the system not

This paper introduces an intelligent system based on single chip microprocessor for motor speed control, which can control the operation of servo motor. The design scheme has been proved well in the application of motor speed control, and the overall control process is very stable and has an ideal positioning accuracy, which can meet the

Our street lamp has a wide distribution area. According to the need, we independently research and design an intelligent street lamp controller. Since it was put into use, the long-term street lamp control of our station has been solved by manual opening and closing. It greatly reduces the labor intensity of the staff on duty,

First of all, based on the detailed analysis of the principle of vehicle stability control, the problem of over steering or insufficient steering easily induced by vehicle steering is studied. Based on the main parameters of vehicle running state – sideslip angle of mass center and yaw angular velocity as the main control variables, the

Automatic parking technology will help to solve the problem of parking difficulties caused by narrow parking spaces or poor driver skills and prevent accidents. The core of this technology is fuzzy controller. Therefore, this paper focuses on the fuzzy controller control method of automatic parking system. Based on the introduction of fuzzy control principle, this

The relay is replaced by programmable logic controller (PLC). The contactor controls the step-down starting process of the autotransformer of the motor, the conversion process of the electric control circuit and the ladder diagram control circuit, and the equivalent transformation method of the non-programmable problems after the conversion. In order to change the traditional Y-r

This paper introduces the use of high-power thyristors for motor forward and backward control and related fault protection. AVR microcontroller is used to realize the diagnosis of thyristor fault state. It can choose to control a variety of power motors, and realize overload protection with reverse time limit, phase break and three unbalanced protection respectively.