Title:
LIGHT-EMITTING SIGN DEVICE AND LOW-POWER PREDICTIVE DIAGNOSIS BIDIRECTIONAL ADAPTIVE CONTROL SYSTEM COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2020/004796
Kind Code:
A1
Abstract:
A light-emitting sign device according to the present invention comprises: a solar cell; a battery module comprising at least one battery in which power generated by the solar cell is stored; a light-emitting module for emitting light by the power supplied from the battery; a front panel optically coupled to the light-emitting module; and a controller for applying, to the light-emitting module, a target mode determined, from among driving modes, on the basis of an average value of solar cell voltages measured for a certain period with respect to the solar cell and a voltage value of a battery voltage measured at a certain time with respect to the battery module.
Inventors:
LEE KI HOON (KR)
JO SUNG SU (KR)
JO SUNG SU (KR)
Application Number:
PCT/KR2019/004788
Publication Date:
January 02, 2020
Filing Date:
April 19, 2019
Export Citation:
Assignee:
ALTECH CO LTD (KR)
International Classes:
E01F9/608; G01R19/25; G01R31/3835; H02J7/35; H02S20/20; H02S40/38; H02S50/00
Foreign References:
| KR101835819B1 | 2018-03-08 | |||
| KR20120114828A | 2012-10-17 | |||
| KR20180065199A | 2018-06-18 | |||
| KR20090081955A | 2009-07-29 | |||
| KR101801621B1 | 2017-12-20 |
Attorney, Agent or Firm:
KIM, Doo Sik et al. (KR)
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