US 11,953,873 B2
System and method for wirelessly transmitting and receiving safety information
Myoung Su Song, Daejeon (KR); Jae Wan Kim, Daejeon (KR); and Il Kwon Kim, Daejeon (KR)
Assigned to SILICON WORKS CO., LTD., Daejeon (KR)
Filed by SILICON WORKS CO., LTD., Daejeon (KR)
Filed on Sep. 19, 2022, as Appl. No. 17/947,652.
Application 17/947,652 is a division of application No. 16/434,807, filed on Jun. 7, 2019, granted, now 11,480,936.
Claims priority of application No. 10-2018-0065970 (KR), filed on Jun. 8, 2018; and application No. 10-2019-0056354 (KR), filed on May 14, 2019.
Prior Publication US 2023/0018915 A1, Jan. 19, 2023
Int. Cl. G05B 19/042 (2006.01); H04L 67/12 (2022.01)
CPC G05B 19/0428 (2013.01) [H04L 67/12 (2013.01); G05B 2219/2231 (2013.01); G05B 2219/25257 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of wirelessly transmitting and receiving safety information, the method comprising:
obtaining, by a first slave controller, second sensing data from a first control target;
generating, by the first slave controller, second safety information about the first control target by comparing the second sensing data with a predetermined reference range; and
transmitting the second safety information about the first control target to a master controller through a wireless channel, wherein
the first slave controller is configured to transmit the second safety information about the first control target to the master controller through the wireless channel when the first slave controller operates normally, and
a second slave controller is configured to receive the second safety information about the first control target from the first slave controller and transmit the second safety information about the first control target on behalf of the first slave controller to the master controller through the wireless channel when an error occurs in the first slave controller.