Internet of Things can be simply understood as the things linked things Internet. Internet of Things mainly through the various devices (such as RFID, sensors, two-dimensional code, etc.) interface connected the real world objects to the Internet, or connected each other to achieve the transmission and processing of information. The Internet has built a virtual world outside the real world, and the Internet of Things will integrate the two worlds.
The meaning of the "things" must meet the below conditions then can be included in the "Internet of Things" range:
1. Have data transfer path;
2. Have certain storage function;
3. Have CPU;
4. Have operating system;
5. Have dedicated application;
6. Follow the communication protocol of the Internet of Things;
7. With unique number can be identified in the network
Internet of things essence:
Summarizing internet of things essence mainly in three aspect: First, the Internet characteristics,that is, the things of internet of things must interconnection the internet; second, identify and communication characteristics, that is, the things of internet of things must have the function of automatic identification and material communication; Third, intelligent features, that is, the network system should have the characteristics of automation, self-feedback and intelligent control.
Internet of things classification:
1. Private Internet of things: generally for a single agency provide inner services;
2. Public Internet of Things: based on the Internet providing services to the public or large user groups
3. Community Internet of Things: provide service to an associated “communities " or organization community (such as a city government subordinate committees: such as the Public Security Bureau, the Department of Transportation, Environmental Protection Agency, Urban Management Bureau, etc.).
4. Mixture Internet of Things: is the combination of two or more of the above internet of things, but the background has a unified operation and maintenance entities.
Key areas:
1.RFID；
2.Sensor network；
3. M2M；
4. Integration of informatization and industrialization
Application case:
1. Internet of things sensor products have been applied in Shanghai Pudong International Airport anti-intrusion system. The system installed more than 30,000 sensor nodes, covering the ground, fence and low altitude detection, can prevent personnel over, smuggling, terrorist attacks and other aggressive invasion. Shanghai World Expo also have signed an order with the Chinese Academy of Sciences Wuxi high-tech micro-sensor network engineering technology research and development center to buy RMB 15 million Yuan anti-invasive micro-sensor network products.
2.ZigBee streetlight control system lighting Jinan Park Expo. The application of ZigBee wireless streetlight energy-saving environmental protection technology is a bright spot in this Garden Expo. All functional lighting in the park uses ZigBee wireless technology to achieve the control of wireless streetlight.
3. The first mobile phone internet of things settled in Guangzhou, the mobile terminal and e-commerce combined model, so that consumers can convenient Interactive communication with the user, to experience the brand quality in everywhere, dissemination and share information, realized the calm excessive from the Internet to the Internet of things, to create a new zero-touch, highly transparent, risk-free market model. Mobile Internet of things shopping actually is flash shopping. Guangzhou flash purchase through scanning bar code, two-dimensional code, etc., which have shopping, parity, identification and other functions. The combination of smart phones and e-commerce is one of important features of "mobile Internet of Things". It is expected that the proportion of Internet of Things will be over half in 2013, till 2015, the market scale of mobile phone internet of things will reach 684.7 billion Yuan. The application of mobile phone internet of things will accompanied massive rise with the E-commerce.
Reproduce from Zhihu.
