At present, the challenges posed by the Internet of Things system have given rise to a new network construction system. Over a long period of time, people have designed a large number of standardized frameworks to solve many challenges and problems faced by the Internet of Things on a large scale.
These frameworks all have the same basic requirement, which is to support the functional requirements of data, processes and terminal devices for execution. The most famous of these is the framework defined by OneM2M and the Internet of Things World Forum (IoTWF). The following author will give an in-depth introduction to the two frameworks.
UART module
WiFi Module
WiFi Wireless Module
Wireless Transmission Test kits
Wireless modem
Lora wireless modem
In the process of standardizing machine-to-machine communication, the European Telecommunications Standards Institute (ETSI) created an association of technical application committees on M2M in 2008. The purpose of the association is to create a standard framework to accelerate M2M applications and M2M devices. Later, due to the worldwide recognition of the framework, the scope was expanded to the field of Internet of Things.
After the M2M Technical Committee created the framework, other organizations also began to lay out the framework field of the Internet of Things. Under this background, it is particularly important to formulate a common M2M standard. After realizing the needs of the market, in 2012, ETSI and its member institutions launched a global initiative to unify the M2M framework. Communication efficiency in communication systems and the Internet of Things. The purpose of the initiative is to create a common service layer that can be directly nested into equipment facilities to enable service communication between devices. These include equipment interoperability services such as power grid interconnection, automotive hardware interoperability, industrial equipment health monitoring, and intelligent measurement.
The OneM2M architecture roughly divides the functions of the Internet of Things into three architectures: application layer, service layer and network layer. Although the architecture looks simple in the literal sense, its performance is very diverse. It not only allows each device to interoperate with each other through calling the IT networking interface, but also supports a large number of new and old Internet of Things. technology. Let's take a brief look at these three layers.
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Application layer: This layer is mainly concerned with communication between devices. It includes various communication protocols, and attempts to API (interface) the business, thereby transforming communication into standardization. Within specific industries, application markets have their own unique design methods and data collection models, so they are shown as different entities in the figure.
Service layer: This layer is a horizontal framework that interconnects industrial applications with the outside world. This includes the network, underlying protocols, hardware, etc. Examples include network communication backhaul protocols, MPSL networks, VPNs, etc. All common based on these is the service layer.
Network layer: This layer is the layer where IoT devices and endpoint devices communicate with each other. It includes the communication between the device itself and the network to which the device is connected. This communication architecture specifically includes a wireless interface and a wireless point-to-multipoint system. At the same time, it also includes the connection between wired devices.
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