A method of using field programmable gate array (FPGA) to complete multi-axis stepping motor controller is proposed. Using IP planning thinking, the motion control of stepping motor is completed by hardware circuit (IP core of stepping motor), and the trajectory calculation is completed by the microprocessor (NiosII soft core) on the same chip. Then the

In order to adapt to the environmental conditions of steam condensation water temperature in Guangfeng Cigarette Factory, which is generally about 70 C and pH 9-11, a new type of photoelectric level controller is designed and applied in practice. 　　The device realizes the functions of water level detection, signal transmission, control of pump motor and

Greenhouse environment is a complex and changeable controlled object, and it is impossible to establish an accurate mathematical model.The climate change in Jiangsu and Zhejiang is obvious in four seasons, but the control mode of the existing control system is fixed, which makes it difficult to achieve the desired control effect.Based on the research of

With the acceleration of urbanization in China and the widespread popularity of the Internet, people are increasingly demanding for home safety [1,2]. Due to the fragmentation and inefficiency of the existing access control system, this topic adopts the form of networking to design the access control system. Through the use of STM32F chip and other

Synchronization of audio, video and lighting is very important in performance. This paper introduces the design scheme of time code distributor based on microcontroller to solve the synchronization problem. The single channel time code generator is transformed into multi-channel time code. The design takes the microprocessor PIC MCU as the core, and mainly consists of

Intelligent network communication controller system based on fieldbus technology plays an important role in the design and construction of control system of chemical industry in China. This paper takes the field bus intelligent controller technology as the research object, carries out professional technology research, and provides theoretical support for the wide application of this technology.

Nowadays, with the development of electronic technology, digital circuit or digital system can be seen everywhere in people’s life. Traffic lights are all over the streets and lanes. The main basis of the design of traffic light controller is digital electronic technology. When designing a digital circuit system, we must first define the design requirements

Aiming at networked control system (NCS) with time-varying delay, a new distributed event triggering communication mechanism is proposed. 　　This mechanism can effectively save network resources and does not depend on the complete information of the state data. Several spatial distributed sensor nodes collect local information of the state data and transmit signals according to the

In this paper, the dynamic performance of aero-engine acceleration process is improved by switching among several controllers, and it is protected when the speed is too high. Firstly, according to the aeroengine control system model, an H________________________ In order to avoid unnecessary loss of actuator caused by frequent switching, the safety protection controller and event

In order to study the influence of different control algorithms on the system of networked control system, Simulink module and TrueTime toolbox in MATLAB are used to build the model of networked control system. When there is a certain time delay in networked control system, the model of networked control system using PID controller and