Title:
ZERO CROSSING POINT SIGNAL OUTPUT AND POWER LINE DATA SENDING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/259204
Kind Code:
A1
Abstract:
Provided in the present invention are a zero crossing point signal output method and apparatus and a power line data sending method and device. The zero crossing point signal output method comprises: continuously receiving zero crossing point square signals, and carrying out periodic sampling on the zero crossing point square signals according to a preset sampling frequency; acquiring sampling numbers from the first zero crossing point square signal to the Mth zero crossing point square signal to obtain an average sampling number S, and obtaining, by calculation, a zero crossing point first interval T1; setting the zero crossing point signal output interval as the zero crossing point first interval T1; continuously outputting zero crossing point signals with an interval of the zero crossing point signal output interval; acquiring sampling numbers from the (M+1)th zero crossing point square signal to the (M+N)th zero crossing point square signal, calculating a difference value between each sampling number and S, and obtaining, by calculation, an accumulated difference value Δs; if Δs is not within a preset variation range, obtaining a zero crossing point second interval T2, and setting the zero crossing point signal output interval as T2; and if Δs is within the preset variation range, the zero crossing point signal output interval remaining unchanged.
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Inventors:
LI DONGSHENG (CN)
Application Number:
PCT/CN2020/093221
Publication Date:
December 30, 2020
Filing Date:
May 29, 2020
Export Citation:
Assignee:
TENDYRON CORP (CN)
International Classes:
H04B3/54; G01R19/175
Domestic Patent References:
| WO2016161573A1 | 2016-10-13 |
Foreign References:
| CN104767549A | 2015-07-08 | |||
| CN105675953A | 2016-06-15 | |||
| CN106018958A | 2016-10-12 | |||
| KR20020064512A | 2002-08-09 | |||
| JPH10185966A | 1998-07-14 |
Other References:
See also references of EP 3989449A4
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