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Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
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With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
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0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
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In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]
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(1) Open circuit voltage of the battery
(2) Internal resistance of the battery
(3) Battery operating voltage
(4) Charging voltage
Charging voltage refers to the voltage applied ...[Details]
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0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]
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As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
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0 Introduction
In the fields of petroleum, chemical industry, metallurgy, electricity, textile, light industry, water conservancy and other industries and scientific research, relevant pressur...[Details]
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: Ambiguous operators need parenthesesAmbiguous
symbol ``xxx``Argument
list syntax errorArray
bounds
missingArray
size
toolargeBad
character
in paramentersBad
file
name format in i...[Details]
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Thyristor is the abbreviation of thyristor, commonly known as silicon controlled rectifier. It is a high-power switching semiconductor device, represented by the letter symbols "V" or "VT" in the c...[Details]
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1 Introduction
The Global Navigation and Positioning System (GPS) has been widely used in vehicle positioning because it can provide all-weather, continuous, and real-time high-precision posit...[Details]
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Tags: digitization, analog technology, digital technology
1. Introduction
The ability of digital electronics to quickly and accurately collect image, voice and audio data from our...[Details]
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Tags: Intelligent Video Video Surveillance HD Video
Currently, intelligent video analysis technology is gaining more and more attention in the security industry, and many projects have...[Details]
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Most of the temperature sensors on cars are negative temperature coefficient thermistors, such as the engine's intake temperature sensor, coolant temperature sensor, oil temperature sensor, automat...[Details]
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Fieldbus is a fully digital distributed underlying control network. Since its emergence, it has attracted widespread attention from researchers in the control field. However, for a long time, due t...[Details]
Microcontroller MCU
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