What are the communication methods of the smart home system

When shopping for a smart home, it is very necessary to choose a smart home system that suits your needs. Today, let's introduce the four communication methods of smart home systems: bus, wireless, power carrier, and Ethernet.

1. Smart home system based on bus communication

This kind of smart home system adopts RS485/CAN/FT and other communication technologies, this kind of smart home system has strong anti-interference ability and has the advantages of stability. However, its disadvantages are also obvious, node communication requires dedicated communication lines, and the installation and debugging cost is high.

Second, the smart home system based on wireless communication

1. RF wireless communication technology with 315M/433M:

This wireless communication technology is simple, low-cost, and peer-to-peer communication. Because of its low technical threshold and low power consumption, it is used more as an early smart home kit, and easy interference has become a major limiting factor.

2. ZIGBEE/ZWAVE WIRELESS COMMUNICATION TECHNOLOGY;

This wireless communication technology has the characteristics of strengthening the ability of ad hoc networking, multi-node, multi-channel communication, anti-interference ability and relay ability, compared with RF technology, it has the ability of two-way communication, and can feedback the product status on the client, and is gradually sought after by the smart home industry.

3. Smart home system based on power communication

The nodes of the smart home system based on power communication use the original power line for communication, and the original wire is used as the communication medium, and there is no need to use a dedicated communication bus like a bus. It is divided into two categories according to the type of technology:

1. X10 power line communication technology:

It is a power line communication technology that modulates the signal at the zero-crossing point of alternating current, and carries out signal modulation at the zero-crossing point, which can reduce signal interference, but the disadvantage is that the communication efficiency is too low, and it can not adapt to the needs of more and more complex smart home systems.

2. PLC power line communication technology:

It is a technology for carrier modulation on power lines, which adopts narrowband technology with digital signal processing technology, dual-carrier frequency technology, and forward error correction technology.

Fourth, the smart home system of Ethernet communication

This communication technology communicates directly with smartphones via WIFI, making it easy to use. The disadvantage is that it is easy to drop the line, and the application range is small in the smart home system, and it is mostly used in smart home products.

The above are several intelligent device communication methods that we are familiar with, each communication technology has its own advantages, bus communication mode has strong anti-interference ability, and wireless communication cost is low. In general, different methods are suitable for different scenarios, and it is good to choose according to your own needs.