US 11,659,623 B2
Dual boards and method for configuring master/slave of dual boards
Hyo Chul Kwon, Suwon-si (KR)
Assigned to HYOSUNG HEAVY INDUSTRIES CORPORATION, Seoul (KR)
Appl. No. 17/289,097
Filed by HYOSUNG HEAVY INDUSTRIES CORPORATION, Seoul (KR)
PCT Filed Oct. 8, 2019, PCT No. PCT/KR2019/013236
§ 371(c)(1), (2) Date Apr. 27, 2021,
PCT Pub. No. WO2020/091255, PCT Pub. Date May 7, 2020.
Claims priority of application No. 10-2018-0131601 (KR), filed on Oct. 31, 2018.
Prior Publication US 2022/0007460 A1, Jan. 6, 2022
Int. Cl. G05B 19/00 (2006.01); H04W 84/20 (2009.01); G05B 19/042 (2006.01)
CPC H04W 84/20 (2013.01) [G05B 19/0426 (2013.01); G05B 2219/2231 (2013.01)] 8 Claims
OG exemplary drawing
 
1. First and second boards configured in redundancy, each of the first and second boards comprising:
a voltage input part to which an AC voltage is applied by initial booting;
a voltage converter for converting the applied AC voltage into a DC voltage;
a communication part for transmitting a DC voltage value corresponding to the converted DC voltage to a counterpart board and receiving a DC voltage value of the counterpart board from the counterpart board; and
a controller for initializing the voltage converter when an initial boot signal and the AC voltage are applied from outside, converting the DC voltage converted by the voltage converter into the DC voltage value, and comparing the DC voltage values of each board transmitted and received through the communication part, so as to configure each board as a master board or a slave board.