Title:
ASYNCHRONOUS TRANSMISSION METHOD BASED ON ZERO-CROSSING TRANSMISSION MODE IN POWER LINE CARRIER COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2016/161573
Kind Code:
A1
Abstract:
The present invention relates to an asynchronous transmission method based on a zero-crossing transmission mode in power line carrier communications, comprising: step A, sample power of a mains supply in real time according to a pre-set sampling frequency and count a sampling number, and when the power of the mains supply crosses a zero point and the counted number reaches an estimated mains supply zero-crossing period sampling number, clear the counted number; step B, a sending end determines, according to the length of each component of a data packet, a sending start moment of each component, the sending start moment being represented by the counted number; and step C, a receiving end receives data, sent by the sending end, of each frame fragment. The present invention adopts an asynchronous transmission form, a sending end determines sending start time at each zero-crossing point, the sending end only needs to send effective information at positions close to the zero-crossing points, and a receiving end only needs to obtain the effective information in a timing manner according to a certain mechanism and does not need to know specific positions of the zero-crossing points, thereby avoiding influence on signal transmission and alternating current waveform synchronization from errors of a mains supply power period, and improving the pulse interference resisting capability.
Inventors:
GU JIAN (CN)
Application Number:
PCT/CN2015/076046
Publication Date:
October 13, 2016
Filing Date:
April 08, 2015
Export Citation:
Assignee:
RISECOMM MICROELECTRONICS (SHENZHEN) CO LTD (CN)
International Classes:
H04B3/54
Foreign References:
| CN104767549A | 2015-07-08 | |||
| CN104144001A | 2014-11-12 | |||
| CN102064850A | 2011-05-18 | |||
| CN1599272A | 2005-03-23 | |||
| CN102611481A | 2012-07-25 | |||
| US20110002400A1 | 2011-01-06 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
深圳市恒申知识产权事务所（普通合伙） (CN)
深圳市恒申知识产权事务所（普通合伙） (CN)
Download PDF:
Previous Patent: TrkA KINASE INHIBITORS, COMPOSITIONS AND METHODS THEREOF
Next Patent: ULTRASOUND CONTRAST IMAGING METHOD AND APPARATUS
Next Patent: ULTRASOUND CONTRAST IMAGING METHOD AND APPARATUS