The international standard, though relatively slow, has a large participation in the trading of ideas among home automation developers around the world. The specifications of the application models promote the interoperability of the products. This is considered valuable and then focuses on the latest protocols.
There are written reports to direct Energy utility companies to develop new consumer services that use networks for home automation. This led to the development of the international standard of home automation networks called HES (Home Electronic System). Recently, this material has been updated and reflects its progressive results.
HES main goal is to identify software and hardware so that manufacturers can offer a product version that can operate on a wide range of home automation networks. There are several components of HES needed to achieve this goal.
-Universal interface. This interface module is integrated into the devices to allow communication through different home automation networks. HES main goal is to establish communication between devices in any home automation communication network. The UI or universal interface is built into the devices, including the standard data connector. The standard language application is also developed for all messages and device commands.
Each connection point on the network contains NAU (Network access unit) that converts device messages and data signals into a communication protocol specific to home automation. HES identifies the communications protocol between NAU and IU.
-Command language. The language used by the devices to communicate with each other, regardless of the network to which the messages are transmitted. HES language accommodates the commands of the networks. However, the interposition of the NAU-IU link between devices and network media cannot optimize the functioning of the home automation system, but it reduces costs when sold in a large market.
HomeGate. This residential gateway Links control networks at home with the external networks of service providers. The main function of the gateway is to translate the protocols between WAN (wide area Network) and LAN (local area network). It contains features of a firewall that limits messages that can flow in and out of the house.
The HES Working Group is also licensed to investigate network applications on communications, control and command in mixed-use and commercial buildings. Apartment houses with offices and retail stores belong to the category of mixed-use buildings.
Subsystem and device designers make decisions about variables and functions that can be accessed from other devices within the home automation networks. In engineering language, these are options related to control capacity and observability. There must be a coherence in these decisions so that the devices can successfully interoperate. The application model explains the engineering aspects of the device that can be written, executed, or read across networks. This model is important for transmitting information to the product manufacturers, who will be connected by a network for home automation purposes.
The main protocol never includes the complete application of the subsystem model within its specifications. Verifying objects that comprise an application can infer a model. The selection of methods, variables, and objects is based on how the designers of the communication interface understand the device. This information must be fully described in the application model. Otherwise, manufacturers may misinterpret details about how the device works, as they do not have staff or network experts familiar with the communications models.
There are safety standards provided by IEC (International Electrotechnical Commission) for various devices when they operate individually. The main concern of HARASSMENT is that the interaction between the products through the household control networks obtains the harmonization of the safety requirements. Functional safety is defined by the IEC as the ability of the home control system to execute essential actions to maintain and achieve the desired safety levels in normal and emergency situations.
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