What is IoT?
On the basis of the Internet, the Internet of Things (IoT) extends and expands the communication to the connection between things and things, and things and people. In the Internet of Things mode, all objects are connected to the network, if rules are triggered, certain actions and communications are performed.
The Internet of Things is an extension of the Internet. The Internet connects participants through computers, mobile phones, and other devices. However, the Internet of Things connects devices by using sensors, chips, and wireless modules, forming a brand-new information exchange method.
The three elements of IoT
The formation and management of the Internet of Things rely on the following elements.
Device networking capability: through different network protocols and communication standards, the device can be connected to the control application and perform intelligent operations.
Cloud: provides data services such as monitoring, storage, and analysis, and guarantee the security of your business data.
Control application: receives data information and control instructions from the devices and the cloud. The control application is usually an app, a smart cloud, and other devices (such as Google Home, Amazon Echo, and beyond).
The three-layer DCM architecture
The IoT system architecture can be divided into three logical layers of DCM from bottom to top.
Perception layer (Device): it belongs to the first layer of the DCM architecture and is responsible for comprehensive perception. It uses radio frequency identification (RFID), QR code, sensors, and other detection, capture, and measurement technologies to collect and obtain information on devices anytime and anywhere.
Network layer (Connect): it is responsible for reliable connectivity. It connects objects to the information network and relies on communication networks and protocols to achieve credible information interaction and sharing.
Application layer (Manage): it is responsible for intelligent processing, analysis, processing of massive data and information, and achieving intelligent decision-making and control.