The Internet of Things is an important part of the new generation of information technology. As the name implies, the Internet of Things is the Internet connected by objects. It is an inevitable outcome of the development of information technology to a certain extent, and it is also a new requirement for economic and social development to a certain stage. It is a necessity. China has already possessed the policy, economic and technological environment for the development of the Internet of Things. Micro-sensors, ultra-high-frequency chips, cloud computing and information security will become the focus of technology development. Security, transportation, logistics, home, environmental protection, electricity and other fields will Become an application focus.

First, the principles and characteristics of the Internet of Things technology

The Internet of Things is a collection of information-sensing devices, such as sensors, radio frequency identification (RFID) technology, global positioning systems, infrared sensors, laser scanners, gas sensors, and other devices and technologies. Connected, interactive objects or processes, collecting a variety of information needed for sound, light, heat, electricity, mechanics, chemistry, biology, location, etc., combined with the Internet to drive a huge network. In this network, items can “communicate” with each other without human intervention. Its essence is to use the radio frequency automatic identification technology to realize the automatic identification of items and the interconnection and sharing of information through the computer Internet. Its purpose is to realize the connection between objects and objects, objects and people, all items and networks, and to facilitate identification, management and control.

Characteristics of the Internet of Things: Compared with the traditional Internet, the Internet of Things has its distinctive features.

First, it is a widespread application of various sensing technologies. A large number of sensors are deployed on the Internet of Things. Each sensor is a source of information, and different types of sensors capture different formats of information. The data obtained by the sensor is real-time, and the environmental information is periodically collected at a certain frequency to continuously update the data.

Second, it is a ubiquitous network built on the Internet. The important foundation and core of the Internet of Things technology is still the Internet. Through the integration of various wired and wireless networks and the Internet, the information of objects can be accurately transmitted in real time. The sensor timing information collected on the Internet of Things needs to be transmitted through the network. Due to its extremely large number, a large amount of information is formed. In the transmission process, in order to ensure the correctness and immediacy of the data, it must adapt to various heterogeneous networks and protocols.

Also, the Internet of Things not only provides sensor connectivity, but also has the ability to intelligently handle intelligent control of objects. The Internet of Things combines sensors and intelligent processing, and utilizes various intelligent technologies such as cloud computing and pattern recognition to expand the application field. Analyze, process and process meaningful data from the vast amount of information obtained by sensors to adapt to different needs and discover new application areas and application models.

Second, the Internet of Things technology tries new developments in the field of security applications everywhere

Internet of Things is widely used in intelligent transportation, environmental protection, government work, public security, smart grid, smart home , smart home, intelligent fire protection, industrial inspection, environmental monitoring, logistics monitoring, location tracking, elderly care, personal health, flower cultivation , food traceability, enemy investigation and intelligence search and other fields. It is actually a network that serves us and allows us to perceive the physical world and control the physical world. It provides us with services and control over the physical world. The application of the Internet of Things can be divided into monitoring (such as logistics monitoring and environmental monitoring), query (such as intelligent retrieval and remote meter reading), control (such as intelligent transportation and smart home), scanning (such as mobile wallet and dynamic Management and service functions such as charging, to achieve the integration of “management, control, and battalion” of “efficient, energy-saving, safe, and environmentally friendly”.

At present, smart grid, intelligent transportation, intelligent logistics, smart home, environmental and safety testing, industrial automation, medical health, fine agriculture and animal husbandry, finance and service industry, national defense military and other industries have tried the Internet of Things application.

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