The framework design and function of each module of the multi-function integrated communication control system based on ARM9 hardware platform and embedded Linux system are introduced. The system is POSIX compliant. 1 Standard C language is wr…

Xiaomi has released blockchain-related posts on a number of recruitment platforms today, or will enter the blockchain industry. The above positions are ranging from 18k to 60k.

According to the recruitment inf…

The display screen for multi-function power meters (network power meters or smart power meters) has been rapidly developed from traditional LED displays to LCD displays. Nanjing Rom Liquid Crystal combines years of LCD modules according to the…

People pay more and more attention to the health of the body, especially in daily maintenance, but no matter how cautious we are, the fumes in the kitchen are inevitable when cooking every day, so the hood has become an essential appliance for many families. So, do you really u…

The basic structure and working principle of PFC circuit

The figure above shows the schematic block diagram of the rectifier circuit that is not added to the PFC circuit. The figure below shows the working waveform. From the above analysis we…

Nowadays, young people like to go to the cinema and enjoy the experience brought by big-screen movies and shocking sound effects. However, many people find that it is always too expensive to go to the cinema. There is also a situation in which it is better to look at th…

[Global Scientific and Technological Report] August 10th, Zheng Gang, a hammer investor in a dialogue with a certain media, once said that because Ali didn't invest, the hammer almost did not ease and he could not send a salary. It triggered the attention of the…

The reason why crystal oscillator is the heart of digital circuit is because all digital circuits need a stable working clock signal. The most common one is to use crystal oscillator. It can be said that crystal oscillator can be seen as long …

Under the double blessing of national corporate capital and policies, China's artificial intelligence industry has become more and more prosperous. At the same time, Nvidia is our top competitor. There are a lot of AI startups emerging in …

Ray Casting [1968]

Ray Casting, as the first step in the ray tracing algorithm, originated in 1968 and was proposed by Arthur Appel in an article entitled "Some techniques for shading machine rende…

Tip 1: Eliminate the noise caused by improper connection of equipment In the audio system, the interconnection problem of equipment is common. If the connection is improper, the system will reduce the system index and generate noise. In severe cases…