Application Technology of the Internet of Things Paper 1: A Brief Analysis of the Application Technology of the Internet of Things Abstract In recent years, the Internet of Things technology has been widely concerned by people. This paper introduces the research background of Internet of Things technology, the principle, application and technology of sensor network. Wuxi is the first national sensor network information center. Taking the most representative application architecture of Internet of Things based on RFID, sensor network and M2M as an example, this paper expounds the network system and service system of Internet of Things. This paper analyzes the key technologies in the research of Internet of Things, including RFID technology, sensor network and detection technology, intelligent technology and nanotechnology. Finally, it looks forward to the promotion of Wuxi Internet of Things technology as the first national sensor network information center to human life, industrial development and scientific and technological progress.
Keywords internet of things; Technology; App application
Although the Internet of Things technology has matured abroad, the domestic Internet of Things has just started, and the problem is obvious. That is the security of the Internet of Things. The Internet of Things is a new system of real-time interaction between virtual network and real world. Its ubiquitous data perception is based on wireless information transmission and intelligent information processing. On the one hand, it is conducive to improving social efficiency, on the other hand, it will also attract public attention to information security and privacy protection. Technically, there are many network security risks in the Internet of Things. Because the Internet of Things needs wireless transmission in many occasions, the signals exposed in public places are easy to be stolen and interfered, which will directly affect the security of the Internet of Things system. The Internet of Things is huge and closely related to human society. Once attacked by a virus, it will probably lead to the shutdown of factories, the closure of shops and the paralysis of traffic around the world, which will plunge human society into chaos.
1. Definition of the Internet of Things
As a new industry, the Internet of Things needs to go through four stages from its birth to its wide application. The first stage is the imagination stage, which is the initial stage of industrial development; The second stage is the technology research and development stage; The third stage is the experimental stage. When the level of technology research and development reaches a certain level, small-scale trial and test can be carried out, which is a step from theory to practice. Domestic research is also advancing simultaneously. For example, China Mobile, China Telecom and China Unicom, the three major telecom operators, began to try Internet of Things services. China Mobile's mobile wallet and mobile phone electricity purchase business can also be applied to small payment occasions such as supermarkets and restaurants; The wireless environment detection platform of China Unicom can detect dynamic data such as water meter, irrigation and hydrology, as well as air quality, carbon emission and noise through 3G network. The fourth stage is the national promotion stage, and it is also the period with the largest investment. At the same time, once IT is commercialized on a large scale, the construction of a large number of infrastructure and the comprehensive promotion of terminal products will certainly promote the development of many markets such as telecommunications, information storage and processing, and IT service overall solutions.
2. The development trend of the Internet of Things
Experts in the industry believe that on the one hand, the Internet of Things can improve economic benefits and greatly save costs; On the other hand, it can provide technical impetus for the recovery of the global economy. The development of Internet of Things is the result of ubiquitous computing and ubiquitous network represented by mobile technology. It not only drives technological progress, but also further drives the changes of economic and social forms and innovation forms through application innovation, shapes the fluid characteristics of knowledge society and promotes the next generation of innovation oriented to knowledge society. Open innovation, * * innovation, mass innovation and user innovation have become the new characteristics of innovation in the knowledge society environment. Technology has shown people-oriented side, and people-oriented innovation has become a reality with the development of Internet of Things technology. There are two important factors to truly establish an effective Internet of Things. First, scale, only with scale can the intelligence of goods play a role. The second is mobility. Things are usually not static, but in motion. Keep things in motion, even at high speed, so as to realize dialogue at any time.
3. Privacy issues of Internet of Things application technology
In the Internet of Things, radio frequency identification technology is a very important technology. In the radio frequency identification system, the tag may be embedded in any item in advance, such as people's daily life items, but the owner of the item (such as clothes) may not realize that the item has been embedded with the electronic tag in advance, and may be scanned, located and tracked uncontrollably, which will inevitably infringe on personal privacy. Therefore, how to ensure that the privacy of the tag owner is not violated has become a key issue in the promotion of RFID technology and even the Internet of Things. Moreover, this is not only a technical issue, but also involves political and legal issues. This problem must be paid great attention to and solved technically and legally. The key to the invasion of personal privacy lies in the basic function of RFID tags: the ID or identification code of any tag can be randomly scanned at a distance, and the tag automatically responds to the instructions of the reader indiscriminately and transmits the stored information to the reader. This function can be used to track and locate specific users or projects, so as to obtain relevant privacy information. This brings the problem of how to ensure that the personal privacy of the holder of the embedded marked article is not infringed.
4. Key areas of Internet of Things application
4. 1 RFID
Radio frequency identification (RFID) technology, also known as electronic tag and RFID, is a communication technology that can identify a specific target and read and write related data through radio signals without establishing mechanical or optical contact between the identification system and the specific target. RFID radio frequency identification is a non-contact automatic identification technology, which can automatically identify the target object and obtain relevant data through radio frequency signals, and can work in various harsh environments without manual intervention. RFID technology can identify high-speed moving objects and multiple tags at the same time, which is quick and convenient to operate. RFID is a simple wireless system with only basic equipment, which is used to control, detect and track objects. The system consists of an interrogator (or reader) and many transponders (or tags).
4.2 Sensor Network
Sensor network is a wireless network composed of randomly distributed micro-nodes integrating sensors, data processing units and communication units. With the help of sensors built in the nodes, thermal, infrared, sonar, radar and seismic signals in the surrounding environment are measured to detect material phenomena including temperature, humidity, noise, light intensity, pressure, soil composition, size, speed and direction of moving objects.
4.3 M2M technology
M2M is the abbreviation of Machine-to-Machine/Man, which is a networked application and service with intelligent interaction between machine terminals as its core. M2M can be divided into three categories: individual, family and industry according to its application service objects. The emergence and development of communication network technology has brought great changes to social life. People can communicate faster and exchange information more smoothly. But at present, only IT equipment such as computers have this communication and network capability. Many ordinary machines and equipment have almost no networking and communication capabilities, such as home appliances, vehicles, vending machines, factory equipment and so on. The goal of M2M technology is to make all machines and equipment have networking and communication capabilities, and its core concept is network everything. M2M technology is of great significance and has a broad market and application, which has promoted a new round of changes in social production and lifestyle. M2M is a concept, and it is also the general name of all technologies to enhance the communication and network capabilities of machines and equipment. A lot of communication between people is also achieved by machines, such as mobile phones, telephones, computers, fax machines and other machinery and equipment to achieve communication between people. Another technology is specially designed for establishing communication between machines. For example, many intelligent instruments and meters have RS-232 interface and GPIB communication interface, which enhances the communication ability between instruments and between instruments and computers. At present, most machines and sensors do not have local or remote communication and networking capabilities.
4.4 Integration of industrialization and modernization
The integration of informatization and industrialization is a high-level and deep-level combination of informatization and industrialization, which refers to promoting industrialization with informatization, promoting informatization with industrialization and taking a new road of industrialization; The core of the integration of industrialization and modernization is information support and the pursuit of sustainable development model. At the 16th National Congress of the Communist Party of China, Comrade Jiang Zemin took the lead in proposing the guiding ideology of "promoting industrialization with informationization and promoting informationization with industrialization". After five years of development and improvement, Comrade Hu Jintao continued to improve the new Scientific Outlook on Development of "developing modern industrial system and vigorously promoting the integration of informatization and industrialization" at the 17th National Congress of the Communist Party of China, and the concept of integration of industrialization and informatization was thus formed.
5. Conclusion
According to the connotation of the Internet of Things, the real realization of the Internet of Things needs many technologies such as perception, transmission, control and intelligence. The research of Internet of Things will drive the whole industrial chain or promote its development. The research and application of information perception technology, network communication technology, data fusion and intelligence technology, cloud computing and other technologies will directly affect the development and application of the Internet of Things. Only when these key technical problems are solved by comprehensive research can the Internet of Things be rapidly promoted, benefit human society and realize the beautiful wish of a smart earth.
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