US 12,439,281 B2
Apparatus maintenance management system
Shun Kato, Tokyo (JP); Hirotoshi Yano, Tokyo (JP); and Masanori Nakata, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 18/002,715
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Aug. 27, 2020, PCT No. PCT/JP2020/032286
§ 371(c)(1), (2) Date Dec. 21, 2022,
PCT Pub. No. WO2022/044178, PCT Pub. Date Mar. 3, 2022.
Prior Publication US 2023/0247448 A1, Aug. 3, 2023
Int. Cl. H04W 24/04 (2009.01); H04W 12/0431 (2021.01); H04W 12/06 (2021.01); H04W 84/20 (2009.01)
CPC H04W 24/04 (2013.01) [H04W 12/0431 (2021.01); H04W 12/06 (2013.01); H04W 84/20 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An apparatus maintenance management system comprising:
a plurality of apparatuses each configured to transmit information on its own operation and information on a presence or absence of an abnormality; and
a remote processor configured to acquire and store the information of each of the apparatuses,
the remote processor being configured to
restrict communication by using authentication keys of at least one type having a master-slave relationship,
perform communication with, as a communication partner, each of a first communication device to which one of authentication keys that functions as a master for at least one of the apparatuses is given in advance and a second communication device to which another one of the authentication keys that functions as a slave for the first communication device is given in advance, and
determine a range of the information to be provided to the communication partner according to the type and the master-slave relationship of the authentication key that the communication partner has, when performing communication.