Things are hot word of our times, although we all know, but some people still little knowledge of things, this article is mainly about things.
First of all, Xiao Bian Recommended course: large coffee with you to talk things
(In the curriculum, senior development expert and you talk things develop, prospects of the networking industry, and taught you how to do things from scratch scene, fit-in developers, software developers, industry practitioners learn things )
[Things] definitions:
Things (English: Internet of Things, acronym IoT) is the Internet, telecommunications networks and other traditional information carrier, so that all can exercise independent function of common objects to achieve interoperability of networks. Things are generally a wireless network, and because the device can reach everyone around 1000-5000, so things may want to include 500 megabytes to one gigabyte one object. In the Internet of Things, everyone can use electronic tags to real objects Internet link, the Internet of Things can find out their specific locations. Can be networked with a central computer through the objective for machinery, equipment, personnel centrally manage, control, remote control can also be carried out, and the search for the location of household equipment, cars, and other items were stolen to prevent similar automated control systems, and through the collection of these little things data can be gathered into a big final data, include redesigned to reduce road traffic accident, urban renewal, disaster prediction and crime prevention, epidemic control, and so a major social change, and to achieve material objects associated.
Things will digitize the real world, wide range of applications. Things to narrow the dispersion of information, digital information Integration things and objects, Internet of Things applications include the following areas: transport and logistics, industrial manufacturing, health care field range, Intelligent environment (home, office, factory) field personal and social fields, etc., and has a very broad market prospects.
Things is an important part of a new generation of information technology, industry called: Pan-Internet connected means material objects, things Wanlian. Its English name is "The Internet of things". Thus, "things that material objects connected to the Internet." This has two meanings: First, things are still based on the core and the Internet, the Internet is based on the extension and expansion of the network; a second, expanded and its user end extending between any article to the article, the information exchange and communication. Thus, things are defined by a radio frequency identification (RFID), infrared sensors, global positioning systems, laser scanners and other information sensing device, according to the agreement, to any article connected to the Internet, communication and exchange of information, in order to achieve intelligent identification of objects, positioning, tracking a network monitoring and management.
Things will continue to be the core and foundation of the Internet. But the Internet requires a series of technological upgrades in order to meet the demand of things, such as IPv6, Web_3.0.
[Things] Principle:
Things computer is based on the Internet, using the RFID, wireless data communication technology, a cover configured to everything in the world of the "Internet of Things". In this network, objects (goods) to conduct an "exchange" with each other without human intervention. Its essence is the use of radio frequency identification (RFID) technology, to achieve interconnection and sharing goods (products) and automatic identification information through the Internet computer. And RFID, it is a technology that allows "speak" items. In the "Things" in vision, RFID tags are stored specification information having interoperability, to collect them automatically to a central information system through a wireless data communication network, identify the item (product), and further through the open computer network information exchange and sharing, to achieve the objects of "transparent" management.
[Things] basic technologies:
1. Internet technology, networking is the Internet extension and expansion, so the Internet technology is the core technology development of things in the course of development of the Internet, the main contain technical following aspects: LAN technology, WAN technology, Internet technology, transport control protocol / Internet protocol (TCP / IP) and post-developed cloud computing technology.
2. Information collection technology, the development of things need information collection, information transmission and information processing full integration of these three areas, and information gathering is a critical foundation for the development of things, to get things develop, we must break through the information collection technology bottleneck.
3. The network communication technology, stripped things mysterious coat, in fact, essentially things many industries and the field of application of the existing wireless sensor networks, wireless sensor networks based sensor node built different detection test environment the temperature, humidity, noise, light intensity, pressure, soil constituents, the moving object information such as speed and direction, and complete the processing of communication tasks by the built-in data processing and communication unit.
4. Article Numbering technology, EAN is the cornerstone of things, is the core of things and keyword information exchange content, is the goods, equipment, location, attributes, etc. digital name.
5. Database technology, in the era of things, as the number of items is representative of the label trillion magnitude. Such a large amount of data required by the database manager. In the local database, the tag reader connected to the data stored in the local database. Authorized, the database can be accessed via the network.
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