US bookseller Barnes & Noble has launched an e-reader, the Nook, in the US to compete with Amazon's Kindle and Sony's reader.Like the Kindle, the Nook uses Vizplex's 16-level e-ink screen to display t...
In the vxworks environment, the numerical calculation result of my program is occasionally NaN, which causes all subsequent processing errors. What is NaN? What may be the cause? How can I solve this ...
I need help, regarding the encryption problem of database programming in WINCE+EVC environment. Current programming has certain requirements for the encryption properties of the database. I referred t...
I am a beginner in VxWorks. I just installed a virtual machine not long ago, and it runs normally. Now I want to try an example of communicating with a serial port. The program I use is below. There i...
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]
1. The composition and structure of mobile phone lithium battery
Mobile phone lithium batteries are mainly composed of plastic shell upper and lower covers, lithium battery cells, protection c...[Details]
The installation locations of DC-DC converters are relatively scattered. DC-DC converters can be found on the power board, main board, logic control board and other circuit boards of PDP color TVs....[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[Details]
System Block Diagram
The system uses DSP56F826 chip as the core control module and CMOS digital image sensor chip. The image acquisition resolution can reach 640×480 pixels. When high-re...[Details]
Whether in mobile phones, high-end handheld instruments or embedded systems, 32-bit MCU ARM occupies an increasing share, and ARM has become the de facto industrial standard for high-end products...[Details]
Introduction
With the development of economic level, people's demand for cars is increasing. While cars bring great convenience to our travel, they also pose challenges to the health of d...[Details]