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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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0 Introduction
SAA7111 is a programmable video processor produced by Philips. The chip integrates A/D and decoding functions. It has phase lock, automatic clamp, automatic gain control, cl...[Details]
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introduction
The fall detector is suitable for elderly people and children with poor self-care and self-protection abilities. It senses changes in the body posture of the individual wearing th...[Details]
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introduction
Video surveillance systems are widely used in industrial, military and civil fields, playing an important role in the security and environmental monitoring of these industries...[Details]
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Electrocardiogram is an important means of diagnosing heart disease. However, due to various reasons, it is difficult to capture abnormal electrocardiograms with ordinary electrocardiographs. Although...[Details]
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A financial analyst pointed out that the signal reception problems of Apple's 3G iPhone may be caused by some defective chips.
Richard Windsor, an analyst at Nomura Securities, said in a resea...[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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1. Introduction
The current information age is an era built on the basis of the network. IP networks based on TCP/IP protocols, such as Internet, Intranet and Extranet, are developing with...[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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0 Introduction
The peak value of AC voltage refers to the maximum value (positive peak value) or minimum value (negative peak value) of AC voltage, which is a very important parameter in t...[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]
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Historically, GPS receiver designers have combined simulation and drive testing to determine receiver performance in complex environments. While GPS signal simulation provides a repeatable signal s...[Details]
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1 Introduction
Motion controllers are core motion control components commonly used in mechatronic equipment such as CNC machine tools and robots. Modern CNC technology has put forward higher a...[Details]
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1 Introduction to Oscilloscope
An oscilloscope is a tool used to measure the fluctuation of voltage or current in a circuit. It can reflect the working condition of the device in real time...[Details]
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1. Learn Linux
According to what I learned from the forum, I chose to learn embedded Linux. It just so happened that our school also attaches great importance to embedded Linux. From the labor...[Details]
Embedded System
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