Power line carrier network home appliance and its control method

A technology of power line carrier and network home appliances, which is applied in the field of data communication, can solve the problems of no CSMA function and the inability to solve transmission conflicts of network home appliance systems, and achieve the effect of solving transmission conflicts

Inactive Publication Date: 2006-05-24
GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it is mainly aimed at the automatic meter reading system, and has no CSMA function, so it cannot solve the transmission conflict problem in the network home appliance system

Method used

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  • Power line carrier network home appliance and its control method
  • Power line carrier network home appliance and its control method

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Embodiment Construction

[0019] The power line carrier network home appliance of the present invention is a bus topology structure in which a master device is connected to several slave devices through a power line. Among them, the master device is a gateway, and the slave devices are various home appliances. The bus topology used in power line carrier communication is as attached figure 1 shown. There are two intermediary control methods between the gateway and home appliances: master-slave question and answer and bus token. When the gateway is busy (transmitting control information), the master-slave question-and-answer method is adopted, and the bus token method is adopted when the gateway is idle. The bus token type mainly satisfies the communication between devices, and the gateway is responsible for distributing tokens. The gateway and all kinds of home appliances are implemented with a modular structure, such as the attached figure 2 In the device module block diagram shown, the gateway ma...

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Abstract

Bus type topological structure, where master unit as gateway and slave units as each type of electrical household appliances are connected through power line, is adopted in the invention. Master unit and slave units are in modular structure. Master-slave dialogue mode combined with bus token mode is adopted as mode of medium access control in the invention. When master unit is busy, the master-slave dialogue mode is used, and when master unit is idle, bus token mode is used. The mode of medium access control in the invention solves transmission collision problem in system. Advantages are: taking full advantage of existed resources of lines, no need of rewiring, cheapness and convenience.

Description

technical field [0001] The invention relates to a data communication technology, in particular to a power line carrier network home appliance and a control method thereof. Background technique [0002] Power line carrier refers to data communication within the low-voltage (380v / 220v) carrier frequency range stipulated by the state. Power line carrier communication makes full use of the existing ubiquitous line resources, does not need to be rewired, and is cheap and convenient. Therefore, it has huge market potential in application fields such as power line carrier automatic meter reading, information appliances, intelligent buildings, and automatic control of power systems. [0003] The power line carrier chip developed in China in recent years has been quite mature after hard work and improvement. But it is mainly aimed at the automatic meter reading system, and has no CSMA function, so it cannot solve the transmission conflict problem in the network home appliance system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04L29/06
Inventor 王斌习聪颖
Owner GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD
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