Title:
AUTOMATIC FIRE ALARM SYSTEM CHILD MACHINE, AUTOMATIC FIRE ALARM SYSTEM, AND AUTOMATIC FIRE ALARM SYSTEM PARENT MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/026098
Kind Code:
A1
Abstract:
The present invention addresses the problem of reducing power consumption. An automatic fire alarm system child machine (1) is provided with a receiving unit (15) and a control unit (17). The receiving unit (15) is electrically connected to a pair of electric wires (31, 32), and receives a signal sent, from a parent machine 2, by changing the voltage (V1) applied between the pair of electric wires (31, 32). The control unit (17) switches the state of the receiving unit (15) to either of a receiving operative state in which the receiving unit (15) operates, and a receiving stopped state in which operation of the receiving unit (15) is stopped. Additionally, the control unit (17) is configured so as to switch the state of the receiving unit (15) to either of the receiving operative state and the receiving stopped state, depending on whether or not a power signal (PS1) which is to be the operation power of the receiving unit (15) is given to the receiving unit (15).
Inventors:
OOI MOTOHIRO
ITOU TAKASI
GOSHONOO KAZUHIKO
MIZUTA TOMOAKI
LI RAN
ITOU TAKASI
GOSHONOO KAZUHIKO
MIZUTA TOMOAKI
LI RAN
Application Number:
PCT/JP2016/003466
Publication Date:
February 16, 2017
Filing Date:
July 27, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G08B17/00; G08B17/06
Domestic Patent References:
| WO2006131998A1 | 2006-12-14 |
Foreign References:
| JPS59142889U | 1984-09-25 | |||
| JPH11175863A | 1999-07-02 |
Other References:
See also references of EP 3333817A4
Attorney, Agent or Firm:
KAMATA, Kenji et al. (JP)
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