Title:
RADIO COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP2022179111
Kind Code:
A
Abstract:
To provide a radio communication system capable of suppressing power consumption of a slave device while suppressing lengthening of re-connection time.SOLUTION: A radio communication system includes an aggregation node, and a plurality of sensor nodes that perform radio communication with the aggregation node. In step S30, the plurality of sensor nodes transmit data to the aggregation node at a scheduled data transmission cycle in a connection state where they can perform radio communication with the aggregation node. In step S34, the plurality of sensor nodes periodically transmit connection requests for radio communication to the aggregation node when they are in a disconnection state which is not the connection state. In step S33, the plurality of sensor nodes set a request transmission cycle for transmitting connection requests. At this time, when the plurality of sensor nodes are unintentionally set to the disconnection state, they set the request transmission cycle to a shorter value than that in the intentional disconnection state.SELECTED DRAWING: Figure 4
Inventors:
MATSUMOTO SHO
ATSUTA TAKASHI
HAYASE YOICHI
RI SEIGEN
ATSUTA TAKASHI
HAYASE YOICHI
RI SEIGEN
Application Number:
JP2021086368A
Publication Date:
December 02, 2022
Filing Date:
May 21, 2021
Export Citation:
Assignee:
DENSO CORP
International Classes:
H04W74/02; H04L13/00; H04W4/38
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo