Title:
POLARITY REVERSAL POWER LINE COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2021/033976
Kind Code:
A1
Abstract:
Instead of a conventional power disruption method used in phase angle control alternating current power line communication, when communication is performed through mapping of data to a differential voltage level "polarity reversal (control causing a 180-degree phase shift in a case of alternating current)" pattern of a power line by using a relay or various types of power semiconductor devices, there is no power disruption and a high voltage range can be used. Therefore, a power line communication, which can transmit several bits in one period of an alternating current voltage waveform, is robust against external noise, and shows fast communication speed, can be achieved. Therefore, the present invention can solve the shortcomings of conventional classical condenser coupling scheme power line communication, and long distance phase angle control alternating current power line communication. The present invention can achieve new power line communication improved in power transmission efficiency, which can provide advantages even when used as direct current power line communication, and can be simply performed using a relay.
Inventors:
CHOI JAE BOO (KR)
CHOI CHANGJOON (KR)
CHOI CHANGJOON (KR)
Application Number:
PCT/KR2020/010514
Publication Date:
February 25, 2021
Filing Date:
August 10, 2020
Export Citation:
Assignee:
CHOI JAE BOO (KR)
CHOI CHANGJOON (KR)
CHOI CHANGJOON (KR)
International Classes:
H04B3/54; H04B3/46
Foreign References:
| KR20080038294A | 2008-05-06 | |||
| KR20140127193A | 2014-11-03 | |||
| KR20150015548A | 2015-02-10 | |||
| KR20170106617A | 2017-09-21 | |||
| US9559752B1 | 2017-01-31 |
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