Cloud is a metaphor for the network and the Internet. It is a new computing method based on the Internet, with a computing power of 10 trillion times per second. This way, it can provide shared software and hardware resources and information to computers on demand and other equipment. Cloud computing can be divided into several types, such as primary platform, management center, application center, and security center.
For smart homes, all functions of cloud computing are based on the Internet and mobile Internet. A typical cloud computing provider will provide general network business applications, accessed through other software or Web services, and data is stored on the server.
Smart home is a small Internet of Things. It has a large hardware group that collects vast amounts of data and information. The stability and reliability of this information must be based on the right hardware. This requires storage devices with sufficient capacity. If there is not enough capacity storage equipment, it will be difficult to store information, and even lead to a large amount of loss of information and data. Therefore, cloud computing came into being, gathering massive data to realize smart homes’ automatic management.
Cloud computing is a commercialized ultra-large-scale distributed computing technology, that is, users can automatically split the required massive computing processing program into countless smaller sub-programs through the existing network, and then transfer them to multiple servers. After searching, calculating, and analyzing, the result of processing will be sent back to the user. Its characteristics are as follows.
Google cloud computing currently has more than 1 million servers, and the “clouds” of Amazon, Microsoft, IBM, Yahoo, etc. all have hundreds of thousands of servers. This shows that the “cloud” has begun to take shape.
“Cloud” is not a fixed, tangible entity. Users don’t need to know or worry about the specific location of the application. They only need a laptop or a mobile phone to achieve everything they need through network services.
“Cloud” uses measures such as fault tolerance of multiple copies of data and interchangeability of computing nodes to ensure service reliability.
Cloud computing can construct ever-changing applications, and the same “cloud” can support the operation of different applications at the same time.
The scale of “cloud” can be dynamically scaled to meet application and user scale growth needs.
“Cloud” is a vast resource pool, and users only need to purchase it on demand.
“Cloud” has low-cost advantages, and its versatility and fault-tolerance measures can reduce a lot of costs. Therefore, enterprises do not have to bear high costs.