Title:
ALARM SYSTEM, ALARM, TRANSFER METHOD, AND PROGRAM
Document Type and Number:
Japanese Patent JP2023089672
Kind Code:
A
Abstract:
To provide an alarm system, an alarm, a transfer method, and a program that reduce a transfer delay time in a multi-hop network while reducing power consumption.SOLUTION: In an alarm system 1000, an up-link communication time slot is assigned to each of a fifth fire alarm 600e, a third fire alarm 600c, and a sixth fire alarm 600f. A first monitoring time slot in which the fifth fire alarm should transmit a monitoring signal, and a second monitoring time slot in which the third fire alarm and the sixth fire alarm should transmit monitoring signals are arranged in front of the up-link communication time slots. The fifth fire alarm monitors reception of the monitoring signal in the second monitoring time slot, and stops reception processing of the communication signal when the reception of the monitoring signal is not detected. The fifth fire alarm transmits the monitoring signal in the first monitoring time slot, then receives the communication signal and transfers the communication signal when the reception of the monitoring signal is detected.SELECTED DRAWING: Figure 1
Inventors:
HARADA KENJI
HARA YUTA
OHASHI TETSUYA
HOSHIBA KEITARO
HARA YUTA
OHASHI TETSUYA
HOSHIBA KEITARO
Application Number:
JP2021204318A
Publication Date:
June 28, 2023
Filing Date:
December 16, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
G08B17/10; G08B17/00; G08B17/107; G08B17/12; G08B25/00; H04W4/38; H04W72/0446; H04W84/18; H04W88/04
Attorney, Agent or Firm:
Satoshi Soda
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