The Internet of Things is a major trend in the development of the Internet

We are all familiar with the Internet, which connects people with each other and stores huge amounts of data. qcm6125 But we can already foresee a day when not only humans but also data, all of our devices are connected via the Internet.

The Internet of Things is the Internet of Things. qualcomm qcm6490 This has two meanings: First, the core and foundation of the Internet of Things is still the Internet, which is an extension and expansion network based on the Internet; Secondly, its client extends and extends to any object and carries out information exchange and communication, that is, information between objects.

The Internet of Things through a variety of information sensing equipment, real-time collection of any need to monitor, connect, interact with the object or process and other information needs, and the Internet combined to form a huge network. The aim is to address the interconnections between things to things (T2T), people to things (H2T), and people to people (H2H).

Iot architecture can be divided into three levels:

The perceptual layer. The sensing layer is composed of various sensors, including temperature and humidity sensors, two-dimensional code tags, RFID tags, readers, cameras, infrared, GPS and other sensing terminals. The perception layer is the source of iot to identify objects and collect information.

The network layer. The network layer consists of the Internet, broadcast network, network management system and cloud computing platform. It is the center of the entire iot, responsible for transmitting and processing the information obtained by the perception layer.

Application layer. Application layer is the interface between the Internet of Things and users, combined with industry needs, to achieve the intelligent application of the Internet of things.

Three key technologies of the Internet of Things:

1. sensor technology: This is also a key technology in computer applications. As we all know, the vast majority of computers so far have processed digital signals. For as long as there have been computers, sensors have been needed to convert analog signals into digital signals that computers can process.

2. RFID tag: It is also a kind of sensor technology, RFID technology is one of the integrated technologies combining RF technology and embedded technology, RFID has broad application prospects in automatic identification, logistics management and other aspects.

3. Embedded system technology: It is a complex technology integrating computer hardware and software, sensor technology, integrated circuit technology and electronic application technology. After decades of evolution, intelligent terminal products characterized by embedded systems can be seen everywhere. From MP3 players around people to satellite systems in aerospace. Embedded systems are changing people's lives and promoting the development of industrial production and defense industry. If the Internet of Things is simply likened to the human body, the sensor is equivalent to the human eyes, nose, skin and other senses, the network is the nervous system that transmits information, and the embedded system is the human brain. After receiving the information, classify it. This example graphically describes the position and role of sensors and embedded systems in iot.