230-030Z118-3PY

Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]

The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]

1. What is temperature? Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]

1 Introduction There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]

Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]

At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]

With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]

IntroductionLED billboards are a kind of information display terminal for the public, which has a wide range of civil and commercial values. However, the information displayed on most LED bil...[Details]

In the past 20 years, although the inverters that use power transistors (GTR) as inverter power devices, 8-bit microprocessors as control cores, and realize asynchronous motor speed regulation acco...[Details]

At present, single-chip microcomputers have been widely used in home appliances, medical treatment, instrumentation, industrial automation, aerospace and other fields. The more popular types of sin...[Details]

Hollysys' LM series PLC products fully consider the difficulties in integrating machines, equipment and subsystems in large control systems, and provide a variety of open communication protocols and i...[Details]

IP STB interactive services that are constantly updated The interactive digital content services that can be provided through the television system include television on demand (Vo...[Details]

introduction This paper mainly studies the problem of voltage sag control. For sensitive load equipment with rectifier inverter structure, this paper proposes a DC dynamic voltage restorer (Dy...[Details]

Central topic: Basic concepts of GSM mobile phones. Considerations in design and debugging of mobile phone power amplifiers. Considerations in mass production testing of mobile ...[Details]

0 Introduction The sense of smell is closely related to human life. In daily life, many industries including tobacco, food, cosmetics, etc. still need human sense of smell to identify and judge samp...[Details]