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Power line communication device, power supply circuit with communication function, electrical appliance, and control-monitoring system

A technology of power line communication and power circuit, applied in the application of power line communication, distribution line transmission system, wired transmission system, etc., can solve the problems of household appliances 63 and circuit complexity, cost increase, etc.

Inactive Publication Date: 2012-08-22
SUMITOMO ELECTRIC IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As described above, when the PLC modem 61 is installed in the home appliance 63, there is a problem that the home appliance 63 is related to the complexity of the circuit, and the cost increases.

Method used

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  • Power line communication device, power supply circuit with communication function, electrical appliance, and control-monitoring system
  • Power line communication device, power supply circuit with communication function, electrical appliance, and control-monitoring system
  • Power line communication device, power supply circuit with communication function, electrical appliance, and control-monitoring system

Examples

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Embodiment Construction

[0036] figure 1 is a diagram showing a schematic configuration of a power line communication device having a communication function based on power line communication (hereinafter, referred to as a PLC modem) and a power supply circuit according to one embodiment of the present invention. That is, for example, the PLC modem 1 is installed in the power supply circuit 2 , and the power supply circuit 2 is installed in the home appliance 3 . By inserting the plug 3 p connected to the primary side of the power supply circuit 2 into the power outlet 4 , the power supply circuit 2 is supplied with commercial AC voltage (AC 100 V) from the power line 5 , and the PLC modem 1 can perform power line communication.

[0037] figure 2 is a circuit diagram showing the internal configuration of the power supply circuit 2 . The power supply circuit 2 uses a commercial AC voltage as an input voltage, and supplies a prescribed DC output voltage (for example, DC 16V) by performing rectificati...

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PUM

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Abstract

A transmitting function in power line communication is achieved with a simpler and cheaper circuit configuration, in PLC modems to be installed in electrical appliances such as household electrical appliances. A power line communication device is configured so that a semiconductor switching element (Sx), which exists on an electric circuit connected to a power line, is driven by a modulation unit (12). This modulation unit (12) outputs a modulated rectangular-wave communication signal to the power line, for a prescribed period of time, by controlling the on / off of the semiconductor switching element (Sx).

Description

technical field [0001] The invention relates to a power line communication device using a power line as a signal transmission path, a power circuit equipped with a power line communication function, an electrical device, and a control and monitoring system. Background technique [0002] A technology of constructing a network in a home area by power line communication (PLC: Power Line Communication) has been put into practical use. Such power line communication makes it possible to establish communication between PLC modems (power line communication devices) each connected to a power outlet, in which a power line (house wiring) is used as a signal transmission path. Therefore, a wired LAN (Local Area Network) can also be constructed without laying a dedicated communication cable in the home area (for example, see Non-Patent Document 1). A device having an information communication function such as a personal computer is connected to each PLC modem via a communication line. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04Q9/00
CPCH04B3/54H04B3/56H04B2203/5416H04B2203/5458H04B2203/547
Inventor 引原隆士宅野嗣大弘津研一下口刚史柴田俊和筑野孝初川聪
Owner SUMITOMO ELECTRIC IND LTD