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The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
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Abstract: Based on the research of the communication process between the reader and the RFID tag, combined with the EPC C1G2 protocol and ISO/IEC18000.6 protocol, a digital circuit of RFID tag appl...[Details]
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Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
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Among the many candidate standards for China's mobile TV, the CMMB standard proposed by the Broadcasting Science Research Institute of the State Administration of Radio, Film and Television is aime...[Details]
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The rapid growth of consumer video applications, from portable media players and cell phones to video game consoles, requires a multitude of different interfaces and adapters to enable users to tra...[Details]
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"Where am I? Where am I going? Where is he/she? How far is he/she from me?..." Do you often have such questions like me? In fact, who can deny that these are questions that we often think about, ev...[Details]
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Overview and application status of IC card access control
IC Card Access Control Overview
System Overview: Use IC card as the carrier to realize identity recognition and access co...[Details]
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0 Introduction
The PTZ controller designed with a single-chip microcomputer as the core can control the camera to move over a large range and at a wide angle in monitoring situations, so t...[Details]
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After more than 20 years of development, Ethernet has become an indispensable part of the underlying connection in modern Internet. It is easy to network and has better openness, making it one of t...[Details]
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1. Overview
At present, there are many cases related to motor vehicles among all kinds of criminal crimes, such as hit-and-run, theft and robbery of motor vehicles, etc. If an automatic mo...[Details]
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0 Introduction
With the rapid development of modern science and technology and the progress of society, service robots are becoming more and more closely connected with people's lives,...[Details]
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As process nodes and die sizes continue to shrink, the number of consumer electronic products using flip-chip packaged IC devices is increasing. However, flip-chip packaging manufacturing rules hav...[Details]
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1. Introduction
In recent years, with the rapid development of microwave and millimeter wave technology, higher requirements have been put forward for broadband microwave and millimeter ...[Details]
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1 Introduction
Heart disease is one of the major diseases that seriously threatens human health and life. Statistics show that about 60% of heart patients die at home. If these patients ca...[Details]
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introduction
Radio Frequency Identification (RFID) technology is an emerging non-contact automatic identification technology with broad application prospects in many fields such as industr...[Details]
PCB Design
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