GB/T 36429-2018System architecture and application model of IoT household electrical appliance (English PDF)

3.1 Internet of Things; IoT

Realize information on physical and virtual worlds through sensing devices, in accordance with agreed protocols, connecting objects, people, systems, and information resources And respond to the intelligent service system. [GB/T 33745-2017, definition 2.1.1]

3.2 Internet of Things Appliances

Household appliances with network communication capabilities can be interoperated in a home or similar location or centrally controlled through a control terminal System, you can also connect to the Internet of Things appliance service platform directly or through the Internet of Things appliance gateway to realize network control and management of home appliances. application.

3.3 IoT appliance gateway

A device that provides one or more functions such as protocol conversion, device management, and network management for IoT appliances.

3.4 IoT home appliance service platform

It can realize the access and management of IoT home appliances, IoT appliance gateways and IoT home appliances applications, and provide equipment for IoT home appliances. A platform system for application services such as management, operation, and control.

3.5 IoT home appliance system

A system consisting of Internet of Things appliances, network communication systems, and IoT appliance service platforms.

Note: The network communication system may include an Internet of Things appliance gateway, a basic support network, and the like.

3.6 Control terminal

It is able to obtain information on IoT appliances and realize the operation and operation of IoT home appliances through human-computer interaction interface.

3.7 Communication module

An interface unit for realizing network communication functions of Internet of Things appliances.

3.8 Third party service platform

Based on communication technology and information technology, the service platform outside the Internet of Things appliance service platform.

Note: Third-party service platforms offer a variety of standard interfaces that integrate the services provided by service providers and can transform multiple types of data.

3.9 Description file

A file used to describe the functions, attributes, and commands of an IoT appliance.

4.1 Internet of Things Appliance System

4.1.1 Overview

The Internet of Things appliance system can be divided into three layers in terms of logic functions. Figure 1, namely. Perceptual interaction layer, network transport layer, application service Layer.

4.1.2 Perceived interaction layer

The perceptual interaction layer mainly collects, automatically recognizes and manages information such as home appliance operation, home environment, user signs and habits.

IoT home appliances are connected to the network through communication modules to exchange information.

Users can control the Internet of Things appliances through the control terminal. For specific applications, please refer to Appendix A.

4.1.3 Network Transport Layer

The network transport layer supports the information transmission, communication link establishment, route addressing, data transmission, etc. of the sensing interaction layer, and is the home appliance and home of the Internet of Things. Communication between the electrical application platforms provides network support.

The network forms specifically included in the network layer are. the Internet, the telecommunications network, the broadcasting network, and the satellite network.

4.1.4 Application Service Layer

The application service layer mainly implements various applications of Internet of Things appliances. The Internet of Things appliance service platform has both public and industrial services.

Industry services can be public services to the public, or industry-specific services that meet specific application needs within the industry.

IoT appliances connect to the IoT appliance service platform directly or through the Internet of Things appliance gateway. Internet of Things Appliance Service Platform Realizes Home IoT applications such as network control and management, including user management, device management, and third-party service access.

4.2 Internet of Things Appliances

4.2.1 Overview

IoT home appliances can interact directly or through the IoT appliance gateway and network transport layer related functional entities, and execute the note as needed. Book, certification, authentication, information interaction, etc.

Internet of Things appliances can support the network control and management of IoT appliances by IoT appliance gateways or network transport layer related functional entities.

Internet of Things appliances can provide security mechanisms to protect user sensitive information in IoT appliances, and ensure connectivity with IoT appliance gateways and networks. Communication between layers of related functional entities is secure.

IoT home appliances can report their business capabilities to the IoT appliance service platform and IoT applications.

4.2.2 Internet of Things Appliance Structure

The Internet of Things appliance structure mainly includes. sensing module, control module, execution module and communication module, and its model is shown in Figure 2.

4.2.3 Main functional modules of IoT appliances

4.2.3.1 Communication module

Provide communication services between IoT appliances and the network transport layer. See GB/T 36424.1-2018 for specific requirements.

4.2.3.2 Control module

The control module should implement various control and management services for the Internet of Things appliances, and realize the analysis and processing of the remote control commands of the Internet of Things appliances. Data exchange with the communication module via a standard interface.

4.2.3.3 Execution module

The execution module executes the commands issued by the control module to implement various functional services of the Internet of Things appliance.

4.2.3.4 Perceptual Module

The sensing module can sense various sensing information of the Internet of Things appliances and send data to the control module for data processing.

4.2.4 IoT Appliance Description File

IoT home appliances should have the ability to describe their own attributes, functions, and service content, through the data structure of their own description files. reflect.

The storage location of the description file may be the memory of the home appliance itself, the communication module, or the control terminal, the Internet of Things appliance gateway, and the outside Network server or other storage location. See GB/T 36430-2018 for specific requirements.

4.2.5 IoT Home Appliances Public Instruction Set

In order to enable interoperability between IoT appliances from different vendors, it is necessary to standardize the instructions of remotely controlable IoT appliances. Form a public instruction set for Internet of Things appliances. See GB/T 36428-2018 for specific requirements.

4.3 Internet of Things Appliance Gateway

4.3.1 Internal functions

The internal functions of the IoT appliance gateway include but are not limited to the following.

--- Support the access of IoT appliances and non-IP technology IoT appliances based on IP technology;

--- Provide authentication and authentication functions to IoT appliances. If necessary, IoT appliance gateways should be able to provide networks to IoT appliances. Parameter configuration information, such as private network address;

--- Provide the identification function of the identification to the communication address to the Internet of Things appliances;

--- Maintain network management information of IoT appliances, and report this information to the IoT application support management platform;

--- Ability to acquire, save and maintain the functional information of IoT appliances. When the IoT appliance function is updated, it needs to be connected to the Internet of Things. Service platform reporting;

--- According to the needs of the network and applications, establish the connection to the Internet of Things appliances, and carry out corresponding information exchange;

--- Provide protocol conversion and storage functions for information and data as needed;

--- Can provide information exchange between different IoT appliances under the same IoT appliance gateway.

4.3.2 External functions

The external functions of the IoT appliance gateway include but are not limited to the following.

--- Implement the conversion of internal and external network protocols and formats;

--- The access capability of the Internet of Things appliance service platform to realize the registration, authentication and certification capabilities of business and Internet of Things appliances;

--- Implement network management functions to achieve fault management, performance management, configuration management, security management and other functions for the gateway;

--- Realize IoT home appliances data acquisition, command transmission, two-way interaction and other functions.

4.4 Internet of Things Appliance Service Platform

It mainly provides a platform for sharing data, resources and services for Internet of Things appliances; it can realize the Internet of Things appliances with the help of application platforms.

Applications such as management and control, including but not limited to. online diagnosis, online upgrade, remote control, information service, etc.

5.1 Relationship between application model and requirements and the underlying environment

The application of Internet of Things appliances is based on actual needs and the basic environment of the Internet of Things. With the expansion of demand and the upgrading of the basic environment, Application features and application models will also continue to expand.

5.2 Typical Application Model

5.2.1 Overview

Typical application modes described in this standard involve registration and deregistration, remote query, remote setup, remote upgrade, fault reporting, and online diagnosis.

The application model of the Internet of Things appliance may include, but is not limited to, the above model.

5.2.2 Registration and cancellation

5.2.2.1 Registration

The process of controlling the terminal to implement registration is shown in Figure 3.

The process of registering IoT appliances is shown in Figure 4.

5.2.2.2 Logout

The flow of the control terminal to implement the logout is shown in Figure 5.

The process of realizing the cancellation through the Internet of Things appliances is shown in Figure 6.

Note: Modifying the registration information may include modification of related data information in the Internet of Things appliance, control terminal, Internet of Things appliance gateway, and Internet of Things appliance service platform.

5.2.3 Remote Query

The user remotely queries the current state of the Internet of Things appliance through the control terminal on the Internet of Things appliance service platform. Remote query flow See Figure 7.

5.2.4 Remote Settings

The user sets the remote parameters of the Internet of Things appliances through the control terminal on the Internet of Things appliance service platform. Remote setup flow View Figure 8.

5.2.5 Remote Upgrade

Remotely upgrade the software of IoT home appliances through the Internet of Things appliance service platform. The remote upgrade process is shown in Figure 9.

5.2.6 Fault Reporting and Online Diagnostics

After the IoT appliance fails, the fault information is sent to the IoT appliance service platform through the network, and the application platform confirms and sends the online information. Diagnostic information, home appliance feedback status information for maintenance use. The fault reporting and online diagnostic process is shown in Figure 10.

A.1 Basic application scenarios of Internet of Things appliances

Figure A.1 shows the basic application scenarios of Internet of Things appliances.

The user can control the Internet of Things appliances through control terminals such as mobile phones and tablet computers. Figure A.1, 1 is the interior of the Internet of Things The connection between the control module and the communication module; 2 is the connection between the Internet of Things appliance and the Internet of Things appliance gateway; 3 is the control terminal directly controlling the Internet of Things Appliances; 4 is the control terminal to connect the Internet of Things appliance gateway; 5 is the home internal broadband gateway to connect the Internet of Things appliance service platform; 6 is the end of control The end is connected to the Internet of Things appliance service platform; 7 is the third-party service platform to connect the Internet of Things appliance service platform.

Among them, 1, 3 can form a control terminal directly connected with the IoT home appliance communication module, and control it; 1, 2, 4 for home internal control The terminal is connected to the home appliance gateway to control the Internet of Things appliances in the local area network; 1, 2, 5, 6, and 7 are remote control of the Internet of Things appliances for the control terminal. control terminal End-connected IoT home appliance service platform, IoT home appliances connect to the Internet and the Internet of Things home appliance service platform through the Internet of Things appliance gateway.

The Internet of Things appliance service platform accesses query information with third-party service platforms such as logos, weather, security, etc. when needed.

A.2 IoT appliance application scenarios accessed through different network media

Figure A.2 shows the application scenario of IoT appliances accessed through different network media.

A variety of communication media are allowed in the home network, including but not limited to infrared, radio frequency, power lines, twisted pairs, coaxial cables, optical fibers, and the like.

Figure A.2 is a typical home network application model, with heterogeneous subnets such as twisted pair networks, power line networks, and low-power wireless networks.

The internal sub-gateway of the home network is connected to the home main network, and communicates with the external network through the home network main gateway.