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目前顯示的是 10月, 2019的文章

Can you trust a smart speaker?

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Q1: Do you have a smart speaker at home? A    : Yes ,  I have two smart speakers. One of them is Apple ’ s Siri ,  which helps me operate my phone better. The other one is TmallGenie .    By giving it voice indications , It  can control domestic appliances ,  play music ,  top up my phone and so on. They all bring convenience to my life.  Q2: What is a smart speaker? A   : A smart speaker is a type of wireless speaker and voice command device ,  with an integrated virtual assistant that offers interactive actions and hands-free activation ,  with the help of one " hot word "  ( or several "hot words" ) . Q3: How does a smart speaker work? A    : Basically ,  you give it a voice command and it does what you want . According to the research ,  although each smart speaker system is slightly different ,  when looking at how they work ,  typically the smart speaker listens to...

Commonts of the Hyperloop sysyem

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Strengths: 1.  Perfect team work. Teams from mechanical design, teams from computer engineering, and people who've worked on massive motor systems, massive rocketships, and  aerospace, aerodynamic engineering coordinate pefectly. 2. Supporters and experimenters.   S everal commercial companies and dozens of student teams pursuing the development of Hyperloop technologies.  3. Good results. If it works out, this transportation can bring us great economic and time benefit. Risks: 1. Technology. The core technology of  this program still needs to be developed. 2. Economy and politics. The construction and future maintenance costs still need to be discussed. If it works out, it will definitely influence the economic development of region. So, which regions will have the technology influence the politics. 3. Safety. It will not only related with technology but also with politics and possible terrorist attack. So how to maintenance the whole syst...