[Abstract] In large-scale networks, domain controllers are widely used. Automatically backing up data is one of their main functions, but it is difficult to restore data by using domain controllers. In this paper, the typical problems and solutions in the process of data backup and recovery of domain controller are briefly described and explained. In

With the rapid development of Internet of Things technology, people’s lifestyle and work habits are gradually changing. Faced with a variety of intelligent devices, how to achieve unified control of them has become an urgent problem to be solved. In this paper, a new type of somatosensory controller is designed, which uses NRF905 based on

Starting from the problems of motor not reaching rated load and low efficiency utilization, this paper uses the theory of fuzzy control to control various situations of thyristor by conduction angle, so as to reduce the voltage at both ends and improve the power factor of motor, so as to achieve the purpose of energy

With EasyARM1138 processor as the core of detection and control, the real-time display and control functions of time, temperature and water level are realized, and the functions of time setting, temperature setting and control are also realized. Fuzzy control is used in temperature control. The controller can use auxiliary heating device to make the water

In the process of counting and timing, the principle of PSM modulator in short wave transmitter has become a widely accepted form. In the 100KW PSM modulator for multiple overload counts of the controller, thermostatic element the working principle of the timing circuit and its main working circuit are monitored and protected according to the

This paper introduces the design features of a stage lighting network node controller: multi serial port design, automatic discrimination design for data transmission blocking and network interface design. With the development of stage art effect presentation technology, the application of all kinds of intelligent lamps and lanterns is becoming more and more mature, and the

Through the research of traditional agricultural insecticidal technology, combined with modern agricultural technology, the control technology of solar energy insecticidal lamp has been improved, which will play a positive role in improving the quality of agricultural products, promoting the sustainable development of agriculture and protecting the agricultural ecological environment. In traditional agriculture, farmers are used

With the continuous development of society, China’s urbanization process has also been developing rapidly. With the increasing height of buildings, elevators have become an indispensable means of transportation in the market economy. At present, China’s elevator manufacturing enterprises ignore the elevator’s independent development and development process, and use the main funds to introduce advanced technology

This paper introduces a stealing alarm type solar street lamp controller. The controller consists of a public wireless communication module interactively connected with a monolithic microprocessor in the circuit of the solar street lamp controller, and a SIM card module interactively connected with the other end of the public wireless communication module. When unexpected work

Programmable Controller (PLC) is an industrial controller, which takes CPU as its core and integrates advanced technologies such as computer and automatic control. It has wide application, powerful function and convenient use, and has become one of the main pillars of contemporary industrial automation. There are many types of PLC and different functions and instruction