US 12,265,130 B2
Monitoring system
Shogo Shigemori, Kariya (JP); Tatsuhiro Numata, Kariya (JP); and Tetsuya Watanabe, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Aug. 26, 2022, as Appl. No. 17/896,200.
Claims priority of application No. 2021-139726 (JP), filed on Aug. 30, 2021.
Prior Publication US 2023/0064107 A1, Mar. 2, 2023
Int. Cl. G01R 31/371 (2019.01); G01R 31/396 (2019.01); H02J 7/00 (2006.01); H04W 84/20 (2009.01)
CPC G01R 31/371 (2019.01) [G01R 31/396 (2019.01); H02J 7/0048 (2020.01); H04W 84/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A monitoring system comprising:
monitoring devices provided in a monitored device and monitoring the monitored device; and
a controller configured to wirelessly communicate with the monitoring devices to acquire monitoring information of the monitored device from the monitoring devices, wherein
the monitored device is switchable between an operating state and a non-operating state,
in the operating state of the monitored device, the controller and the monitoring devices establish individual connections in which the controller acting as a communication master performs wireless communication with each of the monitoring devices acting as communication slaves, and
in the non-operating state of the monitored device, the controller and the monitoring devices maintain communication between the controller and the monitoring devices by establishing a sequential connection in which:
the controller acting as a communication master performs wireless communication with one of the monitoring devices acting as a communication slave; and
one of the monitoring devices, in sequence, acting as a communication master performs wireless communication with another one of the monitoring devices acting as a communication slave.