ALARM SYSTEM, ALARM DEVICE, COMMUNICATION METHOD, PROGRAM

Title:

ALARM SYSTEM, ALARM DEVICE, COMMUNICATION METHOD, PROGRAM

Document Type and Number:

Japanese Patent JP2023162939

Kind Code:

A

Abstract:

To provide a technique capable of switching a relay route smoothly in a multi-hop network.SOLUTION: A fifth fire alarm device 600e receives a signal from a relay device 700 via a third fire alarm device 600c. The fifth fire alarm device 600e is configured so as to, when reception of a signal from the relay device 700 via the third fire alarm device 600c has failed, receive the signal from the relay device 700 via a first fire alarm device 600a. The fifth fire alarm device 600e is also configured so as to, when having switched the relay route that includes the third fire alarm device 600c to the relay route that includes the first fire alarm device 600a, transmit a route switching notification to notify the relay route switching to the relay device 700 to the first fire alarm device 600a.SELECTED DRAWING: Figure 1

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Inventors:

YOSHIDA SHO
OHASHI TETSUYA
HARADA KENJI
HARA YUTA

Application Number:

JP2022073665A

Publication Date:

November 09, 2023

Filing Date:

April 27, 2022

Export Citation:

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Assignee:

PANASONIC IP MAN CORP

International Classes:

H04W40/12; H04W4/38; H04W84/18; H04W88/04

Attorney, Agent or Firm:

Satoshi Soda

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