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1. What is cloud computing?
Cloud computing is a business computing model that distributes computing tasks on a resource pool composed of a large number of computers, enabling users to obtain computing power, storage space and information services on demand. This resource pool is called “cloud”.
“Cloud” is some virtual computing resources that can be maintained and managed by themselves, usually some large server clusters, including computing servers, storage servers and broadband resources. Cloud computing centralizes computing resources and implements automatic management through specialized software without human involvement. Users can dynamically apply for some resources to support the operation of various applications, without worrying about tedious details, and can focus more on their own business, which is conducive to improving efficiency, reducing costs and technological innovation. The core concept of cloud computing is resource pool, which is very similar to the concept of grid computing pool (Computing Pool) proposed as early as 2002. The grid computing pool virtualizes computing and storage resources into a set that can be allocated in any combination, its scale can be dynamically expanded, and the processing power allocated to users can be dynamically recycled and reused. This model can greatly improve the utilization of resources and improve the service quality of the platform.
2. What are the advantages of cloud computing
The characteristics of cloud computing we summarize are as follows (this summary is generally accepted):
1. Hyperscale. The “cloud” has a considerable scale. Google cloud computing has more than 1 million servers, and the “clouds” of companies such as Amazon, IBM, Microsoft, and Yahoo have hundreds of thousands of servers. “Cloud” can give users unprecedented computing power.
2. Virtualization. Cloud computing supports users to use various terminals to obtain services at any location. The requested resource comes from the “cloud” rather than a fixed tangible entity. The application runs somewhere in the “cloud”, but in fact, the user does not need to know the specific location of the application running, and only needs a notebook or a PDA, and can obtain various super-capable services through network services.
3. High reliability. “Cloud” uses measures such as multi-copy fault tolerance of data, isomorphic and interchangeable computing nodes to ensure high reliability of services. Using cloud computing is more reliable than using local computers.
4. Versatility. Cloud computing is not aimed at specific applications. With the support of the “cloud”, various applications can be constructed. The same “cloud” can support the operation of different applications at the same time.
5. High scalability. The scale of the “cloud” can be dynamically scaled to meet the needs of application and user scale growth.
6. On-demand service. The “cloud” is a huge pool of resources that users buy on demand, billed like tap water, electricity and gas.
7. Extremely cheap. The special fault-tolerant measures of the “cloud” make it possible to use extremely cheap nodes to form the cloud; the automated management of the “cloud” greatly reduces the cost of data center management; the publicity and versatility of the “cloud” greatly improves the utilization of resources; ” “Cloud” facilities can be built in areas with abundant electricity resources, thereby drastically reducing energy costs. Therefore, the “cloud” has an unprecedented cost-performance ratio, and users can fully enjoy the low-cost advantage of the “cloud”.
three.Application of cloud computing in smart buildings
As we all know, the platform software determines the application scope and control function of the IP function controller, and realizes different function control requirements at the same management software level, and realizes the integrated control mode of great integration.
In the platform, building-level large-capacity on-site storage devices, including a large number of historical data storage devices (now mainly building energy consumption collection servers, storage servers and analysis servers, etc.), video storage devices (now mainly hard disk recorders, etc.) will be Gradually replaced by the network backup system – “cloud storage” platform. Cloud computing, as the top-end centralized management and control platform, realizes the overall management and control function of the building complex, so that the principle of “distributed control” is extended from the “small distributed control” system of a single building to the “large distributed control” system of the building group. Sensing unit (sensors at the sensing layer), control unit (IP function controller and function control software at the application layer), execution unit (IP function controller and field execution equipment at the application layer), feedback unit (sensing Layer feedback mechanism and sensors) form a large control loop to realize large closed-loop control and management of the building complex.
The future of cloud computing
With the continuous development and maturity of science and technology, 3G, Internet of Things and other technologies are becoming more and more mature and stable. Cloud computing, as a business computing model, will eventually be combined with these technologies and complement each other, bringing unpredictable changes to the world.
3G and cloud computing are interdependent and mutually reinforcing. On the one hand, 3G will bring hundreds of millions of broadband mobile users to cloud computing. At present, 3G users have exceeded 500 million and are growing at an astonishing rate. 2009 was the first year of 3G in China, and the number of users exceeded 10 million that year. The terminals of these users are mobile phones, PDAs, notebooks, netbooks, etc. They have limited computing power and storage space, but have strong networking capabilities and have a natural demand for cloud computing, which will actually support cloud computing to achieve commercial success; On the one hand, cloud computing can provide 3G users with a better user experience. Cloud computing has powerful computing power, nearly unlimited storage space, and supports a variety of software and information services, which can provide 3G users with an unprecedented service experience.
The Internet of Things and cloud computing are also interactive. First of all, the development of the Internet of Things is also inseparable from the support of cloud computing. From a quantitative point of view, the Internet of Things will use a staggering number of sensors, such as hundreds of millions of RFID, video surveillance, etc., and the amount of data collected is staggering. These data need to be aggregated to some storage and processing facilities through wireless sensor networks and broadband Internet, and using cloud computing to carry these tasks has a very significant cost-effectiveness advantage; qualitatively, using cloud computing facilities to process and process these data, Analysis and mining can manage and control the physical world more quickly, accurately and intelligently, so that human beings can manage the physical world more timely and finely, so as to achieve a state of “wisdom” and greatly improve the utilization rate of resources and the level of social productivity. It can be seen that cloud computing will naturally become the back-end support platform of the Internet of Things by virtue of its powerful processing power, storage capacity and extremely high cost performance. Secondly, the Internet of Things will become the largest user of cloud computing, which will lay the foundation for cloud computing to achieve greater commercial success.
Conclusion:
As the security industry gradually enters the era of application market segmentation, security products also need to be customized and segmented. Due to the different environments, scenarios, and purchasing power of users in different industries, the requirements for security products are also different. For example, in order to resolve disputes, the bank counter monitoring system requires DVR to give priority to image quality, which can clearly and completely record the user’s money counting process; the security system requires 24-hour real-time monitoring, focusing on the functions of anti-sabotage and network alarm, so the screen Quality requirements are not very high. As to which mode of cloud computing will develop in the future, its application in the field of security will be seen everywhere. The interconnection and interoperability of large security cloud systems will eventually be born in our lives and bring high performance and low power to our security industry. consumption and cheap service.
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