Wired home networking

1. Power line: use of home lighting and electrical equipment energy supply lines for transmitting a signal, has the advantages of direct use of home network in abundant supply of electric power line, avoiding the tedious wiring. The disadvantage is that the narrow bandwidth, low speed, large interference. CEBus, Lonworks, HomePlug, EHS and X10 for controlling transmission of power line.

2 telephone line: the relative power line, the telephone line transmission bandwidth is large, can transmit audio signal, but the existence of anti disturbance, but also need to lay a large number of telephone lines in the home environment, the expansion of the network is limited. Common criteria are HomePNA.

In addition to the above two kinds of commonly used cable connection outside, wired network technology also includes cable TV coaxial cable RG / 6, twisted pair CAT5 and optical fiber, and the corresponding standard including USB, FireWire IEEE 1394, Ethernet, etc., in terms of 193 speed are effectively improved, with good robustness, but mobility and flexibility.

Wireless home networking

Commonly used wireless communication technology:

1 Bluetooth (Booth Blue)

2 Infrared (IR)

3.IEEE802 11

RF 4.Home

5.Zigbee et al.

From the application point of view, domestic equipment of wireless connection, IEEE802. 11 for in computer local area network connection; infrared technology are unable to bypass obstacles defects only supports point to point depending on the distance from the connection, is not suitable for is used for setting up a home network, HomeRF technology scalability is a for specific applications in the field of communication technology, the cost did not too much advantage. Compared with other wireless communication technology, Bluetooth is a kind of short distance wireless communication technology, which meets the requirements of home control network system based on the characteristics of small size, low power consumption, high reliability, high reliability, and so on.