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Preface
Sleep apnea is a very common sleep breathing disease. According to research, about 24% of adult men and 9% of adult women, or more than 2 million people, suffer from this disease ...[Details]
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The overcurrent and overheating coordinated protection technology implemented by polymer positive temperature coefficient devices (PPTC) can protect motors, controllers and electronic components in...[Details]
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introduction
In engineering practice, ultrasonic waves are often used to measure distances because of their strong directivity, slow energy consumption, and long propagation distance in th...[Details]
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Abstract:
Using TMS320F2812 DSP chip as the control unit, without any gate control device control, the rich software resources of DSP 2812 are used to achieve equal precision measurement. A...[Details]
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Nowadays, the phenomenon of using cloned taxis and trucks for operation is becoming more and more serious. The so-called cloned car is one or several unlicensed vehicles that are used to copy anoth...[Details]
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Abstract:
A single pulse secondary radar reply processor implemented with EPLD. Its main functions include: reply frame pulse detection, reply information decoding, assembling reply inf...[Details]
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Agilent Technologies Inc. has announced a new Unlicensed Mobile Access/Generic Access Network (UMA/GAN) test capability on 3GSM that is both extremely affordable and easy to use. The industry's fi...[Details]
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Focus shift problem
Visible light and infrared light have different wavelengths, so the imaging focus is not on the same plane, which results in a clear image under visible light condition...[Details]
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The main factor causing cost variation in digital display devices today is the display screen. In the design phase, continuously promoting platform-based display design decisions can greatly reduce...[Details]
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Use physical methods and electronic technology to automatically detect intrusions occurring in the monitored area, generate an alarm signal, and assist on-duty personnel in notifying them of the ar...[Details]
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With the development of science and technology, the improvement of living standards and the acceleration of the pace of modern cities, people are increasingly pursuing more convenient, practical an...[Details]
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0 Introduction
The rapid development of wireless communication technology and video compression technology has made wireless video transmission a hot topic of research. Wireless video tran...[Details]
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0 Introduction
With the release of the "Elevator Supervision and Inspection Regulations", new requirements have been put forward for the inspection quality of elevators by inspection agenc...[Details]
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In view of the fact that a single ordinary type of fire detection alarm can no longer meet the demand, the use of multiple sensors to comprehensively collect various abnormal information before a f...[Details]
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O Introduction
Semiconductor laser (LD) is a solid light source. It has been widely used due to its advantages such as good monochromaticity, small size, light weight, low price and low po...[Details]
Mobile and portable
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