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Internet of Things technologyThe main characteristics of the architecture are that the Internet of Things is the Internet, the architecture and foundation of the Internet of Things is the Internet, the core and foundation of the Internet of Things is still the Internet, and the difference between the Internet and the traditional Internet.
Internet: refers to the transfer of Internet information through computers, mobile phones and other devices.
Transfer to a protected place, such as a smart card or mobile phone, etc. Mobile: refers to the connection to the Internet through a mobile device in an individual's daily life. PC.
and home computers: refers to the use of personal computers and fixed internet-enabled devices (e.g. smartphones, tablets, e.g. smartphones, PDAs, laptops.
1) The Internet is a huge network that covers the whole world, resources, and supports massive amounts of data.
2) The Internet is a user-oriented distributed network capable of efficiently processing large amounts of data from mobile and non-mobile terminals.
3) The Internet of Things applications in the Internet can be divided into: Internet Internet of Things (IoT): widely used in agriculture, industry, medical, smart home and other industries in smart home, Internet of Vehicles.
Smart wearable devices, wireless communication devices, etc.
The application of the Internet of Things is a relatively open system, it is a huge integrated circuit network, which can realize all kinds of interconnected application systems. IoT applications should take full advantage of the network architecture of the Internet of Things.
IoT applications are characterized by:
Sensor networks are an important network of wired Internet of Things, which is the connection of sensors that interact with objects into a single computer, which can realize perception, sniffing, communication, transmission, maintenance and control of information from different devices.
The application fields of the Internet of Things are very wide, including smart transportation, smart agriculture, smart industry, smart home, etc.
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Summary. IoT architecture is divided into perception layers. The Internet of Things refers to the real-time collection of any need to monitor through various information sensing devices.
Connect. Interact with objects or processes and other information that is needed to form a huge network of information combined with the Internet.
IoT architecture is divided into perception layers. The Internet of Things refers to the real-time collection of any need to monitor through various information sensing devices. Connect.
Interact with objects or processes and other information that is needed to form a huge network of information combined with the Internet.
1. From the perspective of technical architecture, the Internet of Things can be divided into three layers: the perception layer, the network layer and the application layer. 2. The perception layer is illustrated by a variety of sensors and sensor gateway technical architecture, including carbon dioxide concentration sensors, temperature sensors, humidity sensors, *** tags, RFID tags and readers, cameras, GPS and other sensing terminals.
The role of the perception layer is equivalent to the nerve endings such as human eyes, ears, nose and throat and **, it is the Internet of Things to identify objects and collect information, and its main function is to identify objects and collect information. 3. The network layer is composed of various private networks, the Internet, wired and wireless communication networks, network management systems and cloud computing platforms, etc., which is equivalent to the human nerve center and brain, which is responsible for transmitting and processing the information obtained by the perception layer. 4. The application layer is the interface between the Internet of Things and users (including people, organizations and other systems), which is combined with the needs of the industry to realize the intelligent application of the Internet of Things.
This is the process of vaccinations in schools, in the process, there is a half-hour observation, we assume that the indicators of half-hour observation are body temperature and blood pressure, so I ask, using the three-layer structure of the Internet of Things, how to design how to collect the half-hour body temperature and blood pressure information of all people, and finally conduct data analysis.
Through the four levels of data middle platform perception: perception layer, network layer, platform layer, and application layer to build a data middle platform, open up the data channel, the perception layer comprehensively perceives the terminal and data status, the network layer efficiently transmits information, the platform layer strongly supports data collection, and the application layer is convenient and flexible to provide the best value services for the company and users.
This must have a professional data platform to do, without any preparation in advance, it is impossible to design it at all, this is not something to say, there needs to be a reasonable platform, the use of RFID technology.
And the technical field involved in your question is also relatively extensive.
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(1) Perception layer: responsible for information collection and information transmission between objects.
The technology of information collection includes sensors, barcodes and RFID technology.
The perception layer is the core capability to realize the comprehensive perception of the Internet of Things, and it is the part of the Internet of Things that needs to be broken through in key technologies, standardization and industrialization.
2) Network layer.
It is the use of wireless and wired networks to encode, authenticate and transmit the collected data, and the mobile communication network with wide coverage is the infrastructure for the realization of the Internet of Things, and it is the part of the Internet of Things with a high degree of standardization, strong industrialization ability and mature maturity in the three layers of the Internet of Things.
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1. Perception layer: The perception layer is the first and five senses of the Internet of Things - to recognize objects and collect information. The perception layer includes *** tags and readers, RFID tags and readers, cameras, random GPS, etc.
The main function is to identify objects and collect information, which is similar to the role of ** and five senses in the structure of the human body.
2. Network layer: The network layer is the nerve center and brain of the Internet of Things - information transmission and processing. The network layer includes a converged network of communication and the Internet, a network management center, and an information processing center.
The network layer transmits and processes the information obtained by the perception layer, similar to the nerve centers and brains in the structure of the human body. Awakening Education, 3.
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The architecture of the Internet of Things is the perception layer, the network layer, and the application layer.
1. Perception layer.
The perception layer is like a human sensing organ, and the Internet of Things relies on the perception layer to identify objects and collect information. The perception layer consists of two sub-layers: information collection and communication subnet. Sensors, barcodes, RFID, smart devices, etc. are used as data acquisition devices, and the collected data is exchanged with the gateway of the network layer through the communication module of the communication subnet and the extended network.
Extended networks include sensor networks, wireless local area networks (WPAN), home networks, industrial buses, etc. The main components of the sensing layer are sensors and sensor gateways, including a variety of mature and very different technologies, such as advanced technology, RFID technology, temperature and humidity sensing, optical cameras, GPS equipment, biometrics and other sensing devices.
2) Network layer.
The network layer is like the human brain and central nervous system. After the sensing layer obtains the information, it relies on the network layer for transmission. At present, the main body of the network layer is the Internet, network management system and computing platform, and also includes various heterogeneous networks and private networks.
The network layer consists of various wireless wired gateways, access networks and core networks, and realizes the two-way transmission, routing and control of data and control information of the sensing layer.
Access networks include AD, OLT, DSLAM, switches, radio frequency access units, 2G 3G cellular mobile access, satellite access, etc. The core network mainly includes various optical fiber transmission networks, IP undertake, parallel next-generation networks (NGN), next-generation cracked Internet (NGI), next-generation radio networks (NGB) and other public telecommunication networks and the Internet, and can also rely on the private networks of industries or enterprises.
3. Application layer.
The application layer is the interface between the Internet of Things and users (including people, organizations and other systems), which can provide corresponding management platforms and operation platforms for applications in different users and different industries, and combine them with professional knowledge and business models in different industries to achieve more accurate and refined intelligent information management.
The application layer should include a sub-layer of intelligent data processing, an application support sub-layer, and various specific IoT applications. The support sublayer provides general support services and capability invocation interfaces for IoT applications. The data intelligent processing sublayer is the core technology for data-centric IoT development, including data aggregation, storage, query, understanding, and theories and technologies based on perceptual data decision-making and behavior.
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