JPH04334252A - Indoor abnormal alarm system - Google Patents

Abstract

PURPOSE:To securely and speedily generate an intial alarm by detecting indoor abnormality in an indoor extension telephone set and automatically calling the indoor extension telephone set based on an alarm signal so as to give information on the state of emergency. CONSTITUTION:When indoor abnormality is detected by the temperature sensor 2 of the indoor extension telephone set 1, it is converted into off-hook information on the indoor extension telephone set 1 by a temperature sensor adapter 3. When a system is in an off-hook state for prescribed time, a central processing unit 8 transmits a call signal for giving the notice of the state of emergency from a call signal source 5 to an extension telephone set 6 or an attendant board 7 which is previously registered in a maintenance device, and flickers a lamp corresponding to a having set button. Then, the call signal for giving the notice of the state of emergency is transmitted from the call signal source, or the connection path a(b) of a switching network 10 is generated between the extension telephone set 6 or the attendant board 7 so as to call indoor extension telephone set 1 by a voice call.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor abnormality alarm system using an indoor telephone housed in an electronic private branch exchange and equipped with a temperature sensor.

0002

2. Description of the Related Art Conventionally, no abnormality alarm system has been proposed that detects indoor abnormality using a temperature sensor and notifies an electronic private branch exchange.

0003

[Problems to be Solved by the Invention] Therefore, it is possible to reliably and quickly issue an initial warning in the event of an abnormality occurring indoors.

0004

[Means for Solving the Problems] The indoor abnormality alarm system of the present invention houses an indoor telephone equipped with a temperature sensor in an electronic private branch exchange, and sends information detected by the temperature sensor as an alarm signal. a first means for identifying the indoor extension telephone as being in an off-hook state; a second means for automatically calling either the extension telephone or the relay stand registered in advance in a main storage device as a notification destination of the alarm signal; The present invention includes third means for releasing the off-hook state of the indoor telephone when either the extension telephone or the relay desk answers, and a fourth means for automatically calling the indoor telephone.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

Referring to FIG. 1, which shows an embodiment of the present invention, there is shown a case where an indoor telephone 1 attached to a temperature sensor 2 housed in an electronic private branch exchange detects an abnormality in the room. When the temperature sensor 2 detects an abnormality in the room, the temperature sensor adapter 3 converts it into off-hook information for the indoor extension telephone 1. If the central processing unit 8 scans the line circuit 4 and is off-hook for a certain period of time, the central processing unit 8 identifies this as an emergency alarm signal and sends an extension telephone 6 or a relay stand 7 that has been registered in the main storage device 9 by the maintenance device in advance. First, a special call signal is sent from the call signal source 5 to notify the emergency situation. At the same time, the maintenance device flashes a lamp corresponding to a button set in advance on the extension telephone 6 or the relay stand 7. After that, when the extension telephone 6 or the relay stand 7 answers, the off-hook state of the indoor telephone is released, and the call signal source 5 sends a special ringing signal to notify the emergency situation, or the extension telephone 6 or the relay stand A connection path a or b of the switching network 10 is created between the terminal and the indoor telephone 1 by a voice call. Extension telephone 6
Alternatively, if the relay console 7 does not respond, the indoor telephone 1 is called a pre-registered number of times at a certain interval. It is also possible to display the indoor telephones that have detected a plurality of alarms on the extension telephone 6 or the relay stand 7, or to alert a plurality of indoor telephones by simultaneously ringing them.

[0007]

[Effects of the Invention] As explained above, according to the present invention, an indoor telephone equipped with a temperature sensor detects an abnormality in the room, and calls an extension telephone or a relay stand based on an alarm signal from the indoor telephone. By notifying the user of the emergency situation by automatically calling the indoor telephone, it is possible to reliably and quickly issue an initial warning to the occurrence of an abnormality in the room.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

[Explanation of symbols]

1 In-room internal telephone 2 Temperature sensor 3 Temperature sensor adapter 4 Line circuit 5 Calling signal source 6. Extension telephone 7　　　　　　Relay stand 8. Central control device 9 Main memory

Claims (1)

[Claims] 1. An indoor telephone equipped with a temperature sensor is housed in an electronic private branch exchange, and a first switch for identifying an off-hook state of the indoor telephone in order to notify information detected by the temperature sensor as an alarm signal. means, a second means for automatically calling either an extension telephone or a relay console registered in advance in a main storage as a notification destination of the alarm signal, and a second means for automatically calling one of the extension telephone and the relay console, which is responded to by either the extension telephone or the relay console. An indoor abnormality alarm system characterized by comprising: a third means for releasing the off-hook state of the indoor telephone when the indoor telephone is turned off; and a fourth means for automatically calling the indoor telephone.