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As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
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Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
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introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
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1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
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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]
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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]
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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]
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This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
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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]
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Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
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Automotive electronics are in a noisy environment
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so automotive electronics must have excellent electromagnetic compatibility (EMC) performance. The most important part of automotive elec...[Details]
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As the electromagnetic environment in space becomes increasingly complex, the shielded cables used to transmit weak signals in the test system are easily affected by external electromagnetic distur...[Details]
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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]
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Motor vehicle garage management control system
1. Usage Requirements
1. There are 70 parking spaces in the garage. Each parking space has a door at the entrance. There should be a control...[Details]
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At present, in the electrified section, the train power supply system is a passenger car power supply device installed in the locomotive (trailer) that steps down and rectifies the 25 kV single-phase ...[Details]
MCU
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