About the Internet of Things

Internet of Things

First, the definition

The use of local networks or the Internet and other communication technology to the sensors, controllers, machines, people and things through a new way together, the formation of people and things, things and things linked to achieve information, remote management control and intelligent network. IoT is an extension of the Internet, which includes all the resources on the Internet and on the Internet, compatible with all applications on the Internet, but all elements of the IoT (all devices, resources, communications, etc.) are personalized and privatized.

　　　

Second, the key technology

1, sensor technology: This is also a key technology in computer applications. As we all know, the vast majority of computers have so far handled digital signals. Since there is a computer, the sensor needs to convert the analog signal to a digital signal computer to be processed.
2, RFID Tags: is also a sensor technology, RFID technology is a combination of wireless radio frequency technology and embedded technology as one of the integrated technology, RFID in automatic identification, goods logistics management has a broad application prospects.
3, Embedded system technology: is a combination of computer hardware and software, sensor technology, integrated circuit technology, electronic technology as one of the complex technologies. After several decades of evolution, embedded systems are characterized by intelligent terminal products everywhere, small to the people around the MP3, large to the space and aviation satellite system. Embedded systems are transforming people's lives, driving industrial production and the development of the defense industry. If the internet of things to make a simple analogy with the human body, the sensor equivalent to human eyes, nose, skin and other senses, the network is the nervous system used to transmit information, embedded system is the human brain, after receiving information to be classified processing. This example is an image of the location and role of sensors, embedded systems in the Internet of things.

Three, the application mode

According to its actual use can be attributed to two basic application modes:
The smart label for the object. The use of NFC, QR code, RFID and other technologies to identify specific objects, to distinguish between individual objects, such as in the life of the various smart cards, the basic purpose of barcode label is to obtain the object's identification information, in addition, through the smart tag can also be used to obtain the object of the extended information contained in the item, For example, the amount balance on a smart card, the URL and the name contained in the QR code, and so on.

Intelligent control of the object. The Internet of Things (IoT) is based on cloud computing platforms and intelligent networks, which can be used to make decisions based on the data obtained from the sensor network and change the behavior of objects. For example, according to the intensity of light to adjust the brightness of the street lights, according to vehicle traffic automatically adjust the traffic lights interval.

　

About the Internet of Things