On July 2, the China Household Electrical Appliances Association issued two association standards, T/CHEAA 0001.4-2024 "Smart Home System Cloud Cloud Interconnection Part 4: Technical Requirements for Device Distribution Network Authentication" and T/CHEAA 0001.5-2024 "Smart Home System Cloud Cloud Interconnection Part 5: Basic Model and Interconnection Technical Requirements for Scenarios", which will be implemented from the date of release.
The release and implementation of the above two standards have enriched the content of the T/CHEAA 0001 "Smart Home System Cloud-Cloud Interconnection" series of standards, formed a standard system covering interface technology, information security, user interface design, equipment distribution network, and scenario model, and provided a reference technical solution for the implementation of cloud-cloud interconnection in the field of smart home.
Achieve safe and reliable distribution network
Distribution network is the first step in the use of smart home devices. However, the current smart home devices are very diverse in terms of access to wireless LANs, and the solutions adopted by different vendors (modules, equipment manufacturers, solution providers, etc.) are also different. Even in the scenario of cross-brand interconnection, users also need to connect smart home devices to the wireless LAN through different manufacturers' apps with different technical solutions. The difficulty and complexity of the distribution network directly affect the user's experience of smart home interconnection, and also reduce the distribution rate of smart devices to a certain extent.
From the perspective of optimizing the consumer experience in the whole process, T/CHEAA 0001.4-2024 "Smart Home System Cloud-Cloud Interconnection Part 4: Technical Requirements for Device Pairing Network Authentication" (hereinafter referred to as the "Cloud-Cloud Interconnection Device Matching-network Authentication Technical Requirements") stipulates the process and technical requirements for device pairing and identity authentication around the typical application scenarios of smart home cloud-cloud interconnection. Dr. Wang Miao, Director of Standard Patent of Qingdao Haier Technology Co., Ltd., said that based on the technical solution proposed in the standard, consumers can not only complete the distribution network of the equipment of manufacturer B through the APP of manufacturer A, but also complete the identity authentication of the smart device on the cloud platform of manufacturer B, building a truly closed-loop cross-brand and cross-ecological cloud-cloud interconnection scenario.
According to the reporter of "Electrical Appliances", the "Technical Requirements for Authentication of Cloud Cloud Interconnection Equipment Distribution Network" is applicable to the equipment distribution network and identity authentication of control terminals, smart home equipment, and cloud service platforms that support cloud and cloud interconnection. The standard clarifies the relevant content of the device distribution network authentication process and interface, and aims to give specific technical requirements for the implementation of the distribution network authentication scheme, and form a unified specification in the definition of architecture, process and interface, so as to solve the problem of security verification when the interactive terminal configures different brands of smart home devices to the cloud platform under the brand, and realizes a safe and reliable distribution network process.
According to Wang Miao, the device configuration network authentication process given by the standard adopts the device license code, and the device license code (License) is generated by the cloud platform of the device (cloud platform B), and is preset on the application terminal side when it leaves the factory. At the same time, the device cloud must retain the correspondence between the unique identifier of the application terminal and the device license code.
The formulation of the standard lasted 3 years, and the content of the standard has been repeatedly studied and polished by the Smart Household Appliance Interconnection Working Group of the China Household Electrical Appliances Association for many meetings. The units involved in the drafting of the standard include Haier Youjia Intelligent Technology (Beijing) Co., Ltd., Midea Group (Shanghai) Co., Ltd., Juhaokan Technology Co., Ltd., China Household Electrical Appliances Association, Zhejiang Shaoxing Supor Household Appliances Co., Ltd., Beijing Xiaomi Mobile Software Co., Ltd., TCL Industrial Holdings Co., Ltd., Sichuan Hongmei Intelligent Technology Co., Ltd., BSH Household Appliances Investment (China) Co., Ltd., Ningbo Fangtai Kitchenware Co., Ltd., Hangzhou Robam Appliances Co., Ltd., Whirlpool (China) Co., Ltd., Hangzhou Tuya Information Technology Co., Ltd., Suzhou Samsung Electronics Co., Ltd., Panasonic Home Appliances (China) Co., Ltd., Lenovo (Beijing) Co., Ltd., Konka Group Co., Ltd., Guangdong Galanz Group Co., Ltd., Guangzhou Yunzhiyi Internet of Things Co., Ltd.
Preemptively lay out scene interconnection
Scene intelligence is the development stage of today's smart home industry. Xu Liyao, architect of Juhaokan Technology Co., Ltd., told the reporter of "Electrical Appliances": "The concept of smart home scenarios has been proposed for a long time, and there are currently entrances to the scene on the APP of manufacturers that support more types of equipment, but there has been no standard definition related to the scene in the industry 'what is called a smart home scene'." ”
T/CHEAA 0001.5—2024 "Smart Home System Cloud-Cloud Interconnection Part 5: Basic Model and Technical Requirements for Interconnection of Scenarios" (hereinafter referred to as "Basic Model and Technical Requirements for Interoperability of Scenarios") stipulates the basic data model of the smart home scenario of the cloud platform and the technical requirements for the interconnection of smart home scenarios between the cloud platform.
The "Basic Model of Scenarios and Technical Requirements for Interoperability" gives a clear definition of the relevant terms of smart home scenarios. The standard stipulates that the smart home scene refers to a computing model that allows users to customize scene conditions and scene actions based on rules through predefined rules in the smart home cloud platform, and can automatically execute scene actions when scene conditions are met. Xu Liyao said that through the formulation and implementation of standards, the industry has reached a basic consensus on the definition of smart home scenarios, making it clear that users can be provided with service types through scenarios, and can also help other manufacturers understand and realize smart home scenarios, so as to provide a foundation for the interconnection of scenarios through cloud and cloud interconnection.
The Technical Requirements for Scenario Basic Models and Interoperability also define the relevant content of scenario basic models. Constructing a smart home scene usually involves five common elements: scene number, scene name, condition relationship, scene conditions, and scene actions (see Table 1).
With the development of users' intelligent needs from single products to scenarios, the scenarios of major manufacturers are not unified in design, and scene data is not interoperable, resulting in some problems that affect user experience, such as users need to repeatedly create scenes on different manufacturers' apps, and cross-platform cannot execute scene instructions or execution delays. "At present, there are many cross-brand and cross-ecological smart devices in consumers' homes, and the interconnection of devices can only help consumers see other manufacturers' devices in the apps of different manufacturers, but the created scenes cannot be synchronized to the devices of other manufacturers." Xu Liyao said that through the interconnection of scenes, consumers can synchronize the scenes created in one manufacturer's APP to other manufacturers, and consumers can quickly experience and use the control terminals of multiple manufacturers to execute scenarios.
This standard is proposed by Juhaokan Technology Co., Ltd. and centralized by the Standardization Committee of China Household Electrical Appliances Association. The drafting units include Juhaokan Technology Co., Ltd., Hisense Home Appliance Group Co., Ltd., Haier Youjia Intelligent Technology (Beijing) Co., Ltd., China Household Electrical Appliances Association, Midea Group (Shanghai) Co., Ltd., Zhejiang Shaoxing Supor Household Appliances Co., Ltd., Beijing Xiaomi Mobile Software Co., Ltd., TCL Industrial Holdings Co., Ltd., Sichuan Hongmei Intelligent Technology Co., Ltd., BSH Household Appliances Investment (China) Co., Ltd., Ningbo Fangtai Kitchenware Co., Ltd., and Hangzhou Robam Electric Co., Ltd, Whirlpool (China) Co., Ltd., Hangzhou Tuya Information Technology Co., Ltd., Suzhou Samsung Electronics Co., Ltd., Panasonic Home Appliances (China) Co., Ltd., Lenovo (Beijing) Co., Ltd., Konka Group Co., Ltd., Guangdong Galanz Group Co., Ltd., Guangzhou Yunzhiyi Internet of Things Co., Ltd.
The standard system is becoming more and more perfect
Since 2015, the China Household Electrical Appliances Association has taken the lead in organizing home appliance companies such as Haier, Midea, BSH, Changhong Meiling, Hisense, TCL, and Skyworth to jointly study and solve the user interaction bottleneck of China's smart home appliances and the urgent needs of the development of the smart home appliance industry.
In 2017, the first standard achievement T/CHEAA 0001-2017 "Smart Home Appliance Cloud Cloud Interconnection Standard" was implemented, providing technical basis and guidance for the majority of equipment manufacturers to achieve interconnection. Since then, the China Household Electrical Appliances Association has organized relevant enterprises to actively collect the problems and demands that arise in the implementation of the standard, and revised and expanded the T/CHEAA 0001-2017 "Smart Home Appliance Cloud Interconnection Standard" into the T/CHEAA 0001 "Smart Home System Cloud Cloud Interconnection" series of standards.
With the release of the two standards, the T/CHEAA 0001 "Smart Home System Cloud-Cloud Interconnection" series of standard systems has been further improved, and is currently composed of T/CHEAA 0001.1|T/CCSA 260.1—2023 "Smart Home Systems Cloud-Cloud Interconnection Part 1: Interface Technical Requirements", T/CHEAA 0001.2—2020 "Smart Home Appliances Cloud-Cloud Interconnection Part 2: Information Security Technical Requirements and Assessment Methods", T/CHEAA 0001.3—2020 "Smart Home Appliances Cloud-Cloud Interconnection Part 3: User Interface Design Guidelines", T/CHEAA 0001.4-2024 "Smart Home Systems Cloud-Cloud Interconnection". Part 4: Technical Requirements for Device Configuration Network Authentication", T/CHEAA 0001.5-2024 "Smart Home System Cloud Cloud Interconnection Part 5: Basic Model of Scenarios and Technical Requirements for Interconnection", and is equipped with standard SDK.
In the past nine years, the development process of T/CHEAA 0001 series standards has also included cross-industry cooperation in the home appliance and communication industries, digital standardization and standard digitalization, and has been projected in the intelligent era through one standard implementation project after another.