I made a taximeter for my graduation project. Here is the schematic diagram and program description. The specific functions are as follows: 1. The starting price during the day is 10 yuan, and the mil...
A friend provided me with some drawings. The corresponding product shows 128X64 digital jump. I don't know where the problem is. Please help me diagnose it!I ask everyone to take a look and comment!Ch...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Multimedia processors are often the most power-hungry devices in portable electronic devices. Common ways to reduce CPU power requirements are to reduce clock frequency or operating voltage, but th...[Details]
0 Introduction
In the design and construction of communication systems,
communication power supply
is called the heart of the communication system. The power supply system will dire...[Details]
0 Introduction
The load with impact (rapid change) power in the power system will cause the voltage fluctuation and flicker of the power grid, causing many electrical equipment to fail to wo...[Details]
1. Introduction
Due to the good programmability and superior performance of FPGA, the number of embedded systems using FPGA chips in LCD splicing screens is increasing rapidly, especially in t...[Details]
With the development of control, computer, communication and network technology, computer network integrated automation system has been widely used in modern industrial enterprises. The emergence o...[Details]
1. Self-test of lithium battery capacity
The nominal capacity of the CECT9898 OEM mobile phone lithium battery is 3800mAh, and its battery volume is comparable to the 1500mAh battery of ot...[Details]
We software engineers love to find the perfect solution to any problem we encounter. But oddly enough, we find that in this particular area, there is no perfect solution. Clever tricks may save som...[Details]
Overview
Modern
amplifier RF instruments
have impressive measurement capabilities and accuracy far exceeding their predecessors. However, these instruments cannot reach their full pote...[Details]
There are multiple methods for measuring the temperature of electrical contacts in power transmission and distribution. The more traditional methods include temperature measurement wax sheet method...[Details]
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