The hottest secret of the Internet of things

2022-10-03
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The "unknown" secret of IOT

smart home network generally contains two meanings. One is that all kinds of information terminals and household appliances in the home can be automatically discovered, intelligently shared and coordinated through the intelligent home network. For example, you can control all household appliances with one smart phone, instead of looking for remote controls for TVs, set-top boxes and air conditioners all the way; Even in the future smart kitchen, appliances such as stove, refrigerator, range hood and electric oven can control each other. The second is to extend the public network functions and applications to the family through the family customs, connect various information terminals through the network, provide integrated voice, data, multimedia, control and management functions, and realize the full circulation and sharing of information between the internal terminal of the family and the external public. In other words, household appliances are connected to the Internet or IOT through all the switches, so that various household appliances can be controlled, adjusted and monitored by tablet computers or intelligent remote networks, such as microwave ovens, washing machines, air conditioners, lights, electric curtains, temperature and humidity controllers, air volume regulators, etc

IOT

IOT is a network that realizes the comprehensive interconnection between people, people and things, and things and things with the purpose of perception. Its outstanding feature is to obtain all kinds of information in the physical world through various perception methods, transfer and interact with information in combination with Internet and mobile communication, and then analyze and process information by using intelligent computing technology in 2017, so as to improve people's perception of the physical world and realize intelligent decision-making and control

1) perception layer. Comprehensive perception is a feature of IOT technology, that is, using radio frequency identification (RFID) the industrialization of China's high-end polymer materials is imperative, 306 foam glass insulation products QR code, GPS, camera, sensors and other means of cleaning and re throwing wood, to collect and obtain information about the perceived object anytime and anywhere. In smart home, the perception objects are divided into the family environment people live in and people themselves. The eight subsystems in traditional smart home can be used as the executive equipment of the perception layer. In addition, IOT smart home system also applies many typical sensing technologies, such as wireless temperature and humidity sensors, wireless door magnets, window magnets, wireless gas leakage sensors, etc

2) collateral layer. The network layer in IOT includes all kinds of communication networks and fusion networks formed by interconnection. In addition, it also includes the home IOT management center, information center, cloud computing platform, expert system and other parts for intelligent processing of massive information. In smart home, the network layer should not only have the ability of network operation, but also improve the ability of information operation, such as the application of database. In the network layer, we should especially deal with the two problems of reliable transmission and intelligent processing

3) application layer. The application layer is a solution set that combines IOT technology and smart home professional technology to realize smart home applications. IOT finally realizes the deep integration of information technology and traditional home through the application layer, which is mainly reflected in smart electricity applications, home medical applications, multimedia entertainment applications, home security applications and home control applications. In addition, the application layer also provides a third-party interface for home service providers to provide various services that are convenient for people's lives

at present, strictly speaking, the application of IOT in smart home is mainly focused on the application of the perception layer. It can only be said that the application of a certain technology in IOT is still a long way from a truly ubiquitous IOT smart home, especially in the integration of the application layer. In order to provide a comprehensive smart home, in-depth cooperation among multiple industries is required

cloud computing

cloud is a metaphor of network and interconnection. Cloud computing is an interconnection based computing method, and its computing power is 10 trillion times per second. Through cloud computing, the shared software and hardware resources and information can be provided to computers and other devices on demand. For example, users can access the data center through desktop computers, notebook computers, tablet computers, intelligent or other intelligent terminals to calculate according to their own needs

typical cloud computing providers often provide general network business applications, which can be accessed through browser and other software or other web services, and the software and data are stored on the server. Cloud computing services usually provide general business applications accessed through browsers, and software and data can be stored in the data center

smart home is actually a small home IOT, which needs to collect relevant information through various sensors, and realize relevant functions through the analysis and feedback of these information. Therefore, the stability and reliability of smart home are largely based on good hardware. Without a storage device with sufficient capacity, it will be difficult to store information, and even a large amount of data will be lost. Naturally, it will be more difficult to carry out targeted query, analysis and calculation. For example, both remote video surveillance and remote dialogue require great capacity. If key data is lost, it is likely to cause great losses. The cloud is a low-cost virtual computing resource. Cloud computing centralizes these resources and automatically manages them. Users can apply for some resources anytime and anywhere, support the operation of various applications, and save a lot of maintenance work. Naturally, it can reduce costs, improve work efficiency, and obtain better services

therefore, in order to meet the various needs of smart home, cloud computing has become the best partner of smart home. By building a cloud home through cloud computing, we can more accurately and quickly realize the control of smart home devices, and users can get better cloud services at the same time, the cost is also cheaper. For example, kanjiabao HD video camera launched by Lenovo Group is a cloud based video service product. It integrates cloud computing and tension free machine, which is an experimental machine line video technology used for mechanical property experiments such as stretching, tightening, bending, shearing and peeling of materials. All real-time video recordings are saved on Lenovo's secure server. Users can check everything that happened in the past at any time. Even if someone unplugs the camera, they can see the saved video data. And the security encryption used by the bank is used to protect the video information, so that the saved video information is secure and private, and no one else can see it

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