I. About the meaning of smart home network transmission technology
Transmission technology, Transmission technology, refers to the technology that makes full use of the transmission capacity of different channels to form a complete transmission system, so that information can be reliably transmitted. The transmission system is an important part of the communication system, and the transmission technology mainly depends on the transmission characteristics of the specific channel. Its channels are divided into wired and wireless.
The information that the smart home network system needs to transmit includes two types, one is control information. The common feature of this information is that the amount of data is small, the transmission rate is low, but the real-time and reliability requirements are high; the other is data information. Including a variety of high-definition video and audio information requires a high transmission rate, but the real-time requirements are not high.
“Smart Home Network†is a network system that can cover all aspects of family life and provide various types of intelligent services. The smart home network system includes: control center, home gateway, home facilities and other major functional modules. The control center is mainly used to parse user commands and enable work with different home devices. The home gateway is used to connect the network that manages all kinds of smart home appliances and access control security to the Internet, thereby providing a platform for users to provide remote viewing and control, and providing information sharing platform for various home devices. The home equipment performs its duties and completes the instructions issued by the control center.
Second, the wired transmission method in smart home
The advantage of the wired transmission mode is that it has good reliability, convenient protocol design, low power consumption, and because the bandwidth is large, the compression ratio can be reduced. It is also the preferred transmission method for smart home networks. At present, there are various wired transmission methods for smart homes, such as X-10 of power carrier and CEBUS, EIB, C-Bus, LonWorks, SCS, RS-485, CAN and other buses, and protocol control for other peripheral devices. Many users believe that wired transmission is not only stable but also more secure than wireless. However, wired transmission requires cable routing, and the installation process is complicated. Therefore, it is also a shortcoming of wired transmission. Of course, each of these implementations has its own characteristics, and different transmission modes need to be selected according to different data transmission rates and data transmission ranges.
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