With the gradual expansion of the solar energy market, more and more solar water heater controllers appear in the market, most of them are not perfect. At present, the control system of solar water heater in the market is basically digitized. The controller with single chip computer as the core occupies the main market of

Based on PPC4 pressure controller/controller, VB.NET is used as the development environment to compile software, cooperate with database and report software, realize automatic verification/calibration of pressure sensor, and validate it through reasonable experimental scheme. The system realizes the functions of automatic verification/calibration of pressure sensors, automatic creation and generation of certificates and records. To a

Intelligent distribution network is an important part of smart grid. Automatic reclosure provides line status acquisition, fault location and fault isolation for the realization of smart distribution network. It includes circuit breaker body and recloser controller, in which the controller is the core part of automatic recloser. 　　Firstly, this paper describes the hardware function modules

According to the designed fuzzy controller, thermostatic element the actual experiment is carried out on the THBDC experimental platform, and the theoretical design is applied to the actual object. The experimental results show that the designed fuzzy control has certain application value. At the same time, the THBDC experimental results of the fuzzy control and

ADRC has the advantages of small overshoot, thermostatic element fast response and strong anti-disturbance ability. However, up to now, there is still no unified and effective theory to support parameter tuning. In this paper, based on genetic algorithm, the parameter tuning is transformed into a multi-constrained nonlinear programming problem and solved. Finally, based on a

CKY40 Programmable Logic Controller (PLC), as an important part of air conditioning unit of railway passenger car, intellectualizes the control of air conditioning device of railway passenger car. In the process of practical operation of railway passenger car, PLC failures occur from time to time, which affects the performance of air conditioning device of railway

As the core of SDN network, the robustness of SDN controller is one of the key factors affecting SDN network. The change of switch connection state caused by the unreliability of management channel in SDN network is the main reason that affects the stability of SDN controller. In this paper, by introducing a new state

With the gradual improvement of people’s awareness of power supply safety, dual power supply circuit must be used in many occasions to ensure safe and reliable power supply. In this paper, the double power automatic switching system based on PLC uses undervoltage relay to detect, which ensures the safety and reliability of the circuit and

In this paper, the 16-bit dsPIC33EP series chip controller of Microchip Company is used as the main digital chip of switching power supply. The design scheme of digital control multi-output is introduced. The corresponding hardware and software design are carried out and the principle prototype is made.The experimental verification of the prototype shows that the

With the arrival of the era of “machine replacement” and “industry 4.0”, industrial automation system has been basically realized in enterprises nowadays. Programmable Logic Controller (PLC) is the most commonly used control device in industrial automation system. It has been widely used in steel, printing and dyeing, chemical industry, paper making and mechanical processing and