Dimming control device and method using amplitude variation of common power supply in power line communication
A technology of power line communication and common power supply, which is applied in the direction of lamp circuit layout, electric light source, lighting device, etc., to achieve the effect of less interference and noise, simple setting, and no communication fee
Inactive Publication Date: 2017-12-01
金炳勋
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Problems solved by technology
That is, regardless of the transmission characteristics of high-frequency signals, only the sheathing of the power lines manufactured to meet the insulation conditions, the arbitrary arrangement of branches, and various load devices are the main factors that affect the characteristics of the power line signal
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[0052] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same structure anywhere in the drawings is denoted by the same reference numeral. In the following description, specific specific matters appear to assist in a more complete understanding of the present invention. Moreover, in describing the present invention, if it is judged that the detailed description of related known functions or structures may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.
[0053] In order to overcome the harsh channel environment of power line communication, the following various technologies are required. As the required technologies, first of all, frequency modulation technology for carrying data on frequency using power lines as a medium, coupling technology for combining modulated communication signals with power lines, and for rec...
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In order to overcome the harsh channel environment of power line communication, the present invention sends the data to be transmitted from the sending end by changing the voltage (amplitude) of the common power supply supplied by the power line, and detects the voltage of the power supply supplied by the power line at the receiving end. The power line communication device and method for receiving data, thereby removing the limitation of transmitting power, so it is not limited by distance, so as long as the range of transmitting 220V / 60Hz voltage is provided, power line communication can be realized. By measuring the true RMS voltage of the power line , so that the noise is averaged and eliminated when the voltage is detected, so the influence of load interference and noise is less, and because the impedance of the power line with a frequency of 60 Hz is very high compared with the current power line communication frequency (hundreds of times) above), thereby not only eliminating the uncertainty of signal attenuation, but also eliminating the need for a frequency modulation technique using a frequency modulation device and a power line communication device and method without other coupler devices by using a voltage varying device.
Description
technical field [0001] The present invention relates to a power line communication device and method, in particular to sending the data to be transmitted from the sending end by changing the voltage (amplitude) of the common power supply supplied by the power line in order to overcome the harsh channel environment of the power line communication, and passing the detection at the receiving end A dimming control device and method using amplitude variation of a common power supply in power line communication for receiving data by means of the voltage of a power supply supplied by a power line. Background technique [0002] Power Line Communication (PLC; Power Line Communication) is a method of using power lines as communication lines, using high-frequency filters to separate 100kHz to 30MHz communication signals for transmission and reception, and using multiple frequency separation methods to multiplex power and communication signals and transmit at the same time, usually use ...
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IPC IPC(8): H04B3/54H05B37/02
CPCH04B3/54H04B2203/542H05B47/185Y02B20/40
Inventor 李相澈李钟大金永植金容彻金亨俊
Owner 金炳勋