JP2010231581A - Maintenance phone for fire alarm facilities - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To acquire a maintenance phone for fire alarm facilities where an improvement has been achieved in operability on installation and maintenance. <P>SOLUTION: The maintenance phone for fire alarm facilities is connected to a phone jack (female detachable connector) that is for communication between a fire notification receiver 10 and a terminal apparatus 20 connected therebetween via a phone line and is provided for each. The maintenance phone is provided with: a phone plug 35 (male detachable connector) allowing connection with the fire notification receiver or the terminal apparatus by insertion into the phone jack (female detachable connector); a first speaker 33a and a first microphone 34a for handsfree communication; a second speaker 33b and a second microphone 34b for handset communication; and a hook switch 37 (communication switch) for selecting and switching whether to perform handsfree communication via the first speaker and the first microphone or to perform handset communication via the second speaker and the second microphone. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a maintenance telephone for a fire alarm facility that switches between a handset call and a hands-free call according to a call application when a call is made between a fire receiver and a terminal device.

  There is a conventional technology in which a handset is connected to a telephone jack of a fire receiver and a terminal device so that a handset call can be performed between the fire receiver and the terminal device during construction and maintenance of a fire alarm facility (for example, Patent Document 1).

JP 05-062083 A

However, the prior art has the following problems.
Compared to hands-free calling, the above-mentioned handset call can make a good call with the other party even if the site is noisy. On the other hand, while the handset is attached to the telephone jack, the worker must always hold the handset in his hand and is restrained in front of the fire receiver and terminal equipment. For this reason, there exists a problem that workability | operativity at the time of construction and a maintenance is not good.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a maintenance telephone for a fire alarm facility with improved workability during construction and maintenance.

  A maintenance telephone for a fire alarm facility according to the present invention is provided to a part to be attached / detached (telephone jack) in order to make a call between a fire receiver connected via a telephone line and a terminal device. Maintenance telephone for fire alarm equipment to be connected, detachable part (telephone plug) that enables connection to a fire receiver or terminal device by connecting to the detachable part (telephone jack), and hands-free A hands-free call is made via the first speaker and the first microphone for a call, the second speaker and the second microphone for a handset call, the first speaker and the first microphone, or the second And a call changeover switch for changing over whether to perform a handset call via the second microphone or the second microphone.

  According to the maintenance telephone for the fire alarm system according to the present invention, the fire alarm system with improved workability at the time of construction and maintenance by switching to a hands-free call or a handset call according to the call application. You can get a maintenance phone for.

It is a block diagram of the fire alarm equipment in Embodiment 1 of this invention, and the maintenance telephone used for it. It is explanatory drawing of the connection relation of the receiver and transmitter in Embodiment 1 of this invention. It is an internal block diagram of the maintenance telephone in Embodiment 1 of this invention. It is explanatory drawing in the case of receiving a call from the transmitter side to the receiver side in the maintenance telephone for fire alarm equipment in Embodiment 1 of the present invention. It is explanatory drawing in the case of performing a one-way hands-free call with the maintenance telephone for fire alarm equipment in Embodiment 1 of the present invention. It is explanatory drawing in the case of performing a two-way hands-free call with the maintenance telephone for fire alarm equipment in Embodiment 1 of the present invention. It is explanatory drawing in the case of performing a hands-free call on the transmitter side and a handset call on the receiver side in the maintenance telephone for the fire alarm facility in Embodiment 1 of the present invention.

  Hereinafter, a preferred embodiment of a maintenance telephone for a fire alarm facility according to the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a fire alarm facility and a maintenance telephone according to Embodiment 1 of the present invention. The receiver 10 (corresponding to a fire receiver) and the transmitter 20 (corresponding to a terminal device) each have a configuration in which maintenance telephones 30a and 30b are connected via telephone plugs (detachable parts).

  The maintenance telephone for a fire alarm facility according to the present invention has a technical feature in that a telephone call is made by switching to a hands-free call or a handset call depending on the use of the call. A method for realizing this switching call will be described with reference to FIGS.

  FIG. 2 is an explanatory diagram of the connection relationship between the receiver 10 and the transmitter 20 according to Embodiment 1 of the present invention. The receiver 10 includes a control circuit CPU 11, a transmission / reception unit 12, a telephone jack 13 (attached / detached portion), a receiver side connection detection circuit 14, a call circuit 15, a terminal side connection detection circuit 16, and a speaker 17. On the other hand, the transmitter 20 has a telephone jack 23 (attached / detached portion). The receiver 10 and the transmitter 20 are connected to each other by a signal line SG for transmitting and receiving information related to fire detection and a telephone line TL for a call. In addition to the transmitter, a fire detector (not shown) as a terminal device is connected to the signal line SG.

  The maintenance telephone tool 30 a on the receiver 10 side in FIG. 1 is connected to the receiver 10 by inserting a telephone plug into the telephone jack 13. The maintenance telephone 30 b on the transmitter 20 side is connected to the transmitter 20 by inserting a telephone plug into the telephone jack 23. The two maintenance telephones 30a and 30b can talk over the telephone line TL.

  The receiver side connection detection circuit 14 detects whether or not the telephone plug of the maintenance telephone 30 a is inserted into the telephone jack 13. On the other hand, the terminal-side connection detection circuit 16 detects whether or not the telephone plug of the maintenance telephone 30b is inserted into the telephone jack 23 via the telephone line TL.

  The control circuit CPU 11 in the receiver 10 performs information communication regarding fire detection with the transmitter 20 via the transmission / reception unit 12 and the signal line SG. The transmitter 20 includes a push button (not shown) that is manually operated by a person who discovers the fire. For example, when the fire alarm facility is an on / off type system, when the person who discovers the fire operates the transmitter 20. The transmitter 20 notifies the receiver 10 of a fire by causing the signal line SG to be substantially short-circuited. Furthermore, the control circuit CPU 11 sounds a ring tone through the speaker 17 when the terminal side connection detection circuit 16 detects that the maintenance telephone 30b is connected to the transmitter 20 side.

  Thereafter, the control circuit CPU 11 stops the ringing tone when the receiver side connection detection circuit 14 detects that the maintenance telephone 30a is connected to the receiver 10 side. In this manner, the maintenance telephones 30a and 30b connected to the receiver 10 side and the transmitter 20 side can talk over the telephone line TL by the call circuit 15.

  Next, the internal configuration of the maintenance telephones 30a and 30b will be described. FIG. 3 is an internal configuration diagram of the maintenance telephone 30 according to Embodiment 1 of the present invention. The maintenance telephone 30 includes a control circuit CPU 31, an audio circuit 32, a hands-free call speaker 33a (first speaker) and a microphone 34a (first microphone), and a handset call speaker 33b (second speaker) and a microphone. 34b (second microphone), telephone plug 35 (detachable part), telephone line clip 36, hook switch 37 (call switching switch), and transmission switch 38 are provided.

  The maintenance telephone 30 can be connected to the receiver 10 or the transmitter 20 by inserting the telephone plug 35 into the telephone jack 13 or the telephone jack 23 in FIG. Alternatively, connecting the telephone line clip 36 to the telephone line TL in FIG. 2 can be substituted for inserting the attaching / detaching part 35 into the attached / detached part 23 of the transmitter 20.

  The maintenance telephone 30 in the first embodiment has two changeover switches, a hook switch 37 and a transmission switch 38. By switching the hook switch 37 to the on side, the audio circuit 32 can be connected to the speaker 33a and the microphone 34a for hands-free calling. On the other hand, by switching to the off side, the audio circuit 32 can be connected to the speaker 33b and the microphone 34b for handset calls.

  When the handset HS is placed on the case (not shown) of the maintenance phone 30 (always), the hook switch 37 is on, and the handset HS is turned on from the case (not shown) of the maintenance phone 30. Is lifted, the hook switch 37 is switched off. Here, in the present embodiment, the call switching switch between the hands-free call and the handset call is a hook switch, but various switches such as a push button switch and a dip switch can be used.

  Further, the transmission switch 38 can switch the microphone 34a to be valid by switching from the off side, which is normally maintained, to the on side, and can invalidate the microphone 34a by switching to the off side. Therefore, by switching the transmission switch 38 to the off side, it is possible to hear the sound output from the speaker 33a during a hands-free call, but not to output the sound collected via the microphone 34a. Can do. The maintenance telephone 30 can be configured without the transmission switch 38.

  Next, based on the basic configuration of FIGS. 1 to 3 described above, the technical features of the present invention in which a call is switched to a hands-free call or a handset call according to the call application will be described with reference to FIGS. This will be specifically described. In the following description, the internal configuration of the maintenance telephone 30a connected to the receiver 10 side and the maintenance telephone 30b connected to the transmitter 20 side will both be described using the reference numerals shown in FIG. .

FIG. 4 is an explanatory diagram when a call is received from the transmitter side to the receiver side in the maintenance telephone for the fire alarm facility in the first embodiment of the present invention. In FIG. 4, an incoming call is made in the following procedure.
The telephone jack 23 of the transmitter 20 is turned on by inserting the telephone plug 35 of the maintenance telephone 30b into the telephone jack 23 of the transmitter 20 on the local side.
The terminal-side connection detection circuit 16 in the receiver 10 detects that the telephone jack 23 of the transmitter 20 is turned on via the telephone line TL. Here, as a detection method of being turned on, there is a method of detecting when the attached / detached portion 23 is turned on and energized and a current flows through the terminal side connection detection circuit 16 through the telephone line TL.
The control circuit CPU 11 in the receiver 10 rings a telephone ringing tone via the speaker 17 based on the detection result of the terminal side connection detection circuit 16.

  Next, FIG. 5 is an explanatory diagram when a unidirectional hands-free call is performed by the maintenance telephone for the fire alarm facility according to the first embodiment of the present invention. In FIG. 5, a one-way hands-free call from the transmitter 20 on the local side to the receiver 10 is performed in the following procedure.

-After the telephone ringing tone, the telephone jack 13 of the receiver 10 is turned on by inserting the telephone plug 35 of the maintenance telephone 30a into the telephone jack 13 of the receiver 10.
The receiver side connection detection circuit 14 in the receiver 10 detects that the telephone jack 13 is turned on. Here, the detection method of being turned on is the same as when the attached / detached portion 23 of the transmitter 20 is turned on, and the receiver side connection detection circuit 14 detects that the attached / detached portion 13 is turned on.

The control circuit CPU 11 in the receiver 10 stops ringing of the telephone ringing tone based on the detection result of the receiver side connection detection circuit 14.
-On the maintenance telephone 30b of the transmitter 20 on the local side, the transmission switch 38 is turned on, the hands-free microphone 34a is enabled, and voice input in a hands-free call is enabled.

In the maintenance telephone 30a on the receiver 10 side, the local side call voice is heard hands-free from the speaker 33a.
On the other hand, since the transmission switch 38 in the maintenance telephone 30a on the receiver 10 side is off and the hands-free microphone 34a is invalid, the call voice on the receiver side is not received on the local maintenance telephone 30b. ,Inaudible.

  The on / off operation of the transmission switch 38 provided in the maintenance telephone 30 is performed when the detachable part 13 or 23 is turned on (ie, the transmission switch 38 is always on and the hands-free operation is performed). The microphone 34a for a call is made effective), and the above on / off operation may be reversed. In the maintenance telephone 30b on the local side, when the telephone jack 23 is turned on, the call is turned on (that is, the transmission switch 38 is always turned on and the microphone 34a for hands-free communication is enabled), and the receiver side In the maintenance telephone 30a, when the telephone jack 13 is turned on, the call can be turned off (that is, the transmission switch 38 is always turned off and the microphone 34a for hands-free calling is disabled).

  As a result, the local side can talk without having to operate the transmission switch 38, so that the field worker can concentrate on the work and is installed in a place where there are many people such as a disaster prevention center. Then, since the noise (unnecessary conversation) is not output to the local side by turning on the transmission switch 38 when necessary, it is possible to expect an effect such as not reducing the concentration of the field worker.

Next, FIG. 6 is an explanatory diagram when a two-way hands-free call is performed by the maintenance telephone for the fire alarm facility in the first embodiment of the present invention. In FIG. 6, following the procedure of FIG. 5, a bidirectional hands-free call between the transmitter 20 and the receiver 10 on the local side is performed in the following procedure.
Turn on the transmission switch 38 of the maintenance telephone 30a on the receiver side.
Thereby, on the receiver side, the microphone 34a for hands-free calling is enabled, and two-way hands-free calling is possible between the receiver side and the local side.

Next, FIG. 7 is an explanatory diagram when the hands-free call is performed on the transmitter side and the handset call is performed on the receiver side in the maintenance telephone for the fire alarm facility in the first embodiment of the present invention. In FIG. 7, following the procedure of FIG. 5 or 6, the local-side hands-free call and the receiver-side maintenance phone call are performed in the following procedure.
The hook switch 37 (always on) is turned off by picking up the handset HS of the maintenance telephone 30a on the receiver side.

As a result, the local side remains in the hands-free call, but the receiver side is not in the hands-free call but in the handset call state using the handset HS. That is, when the hook switch 37 is turned off, the audio circuit 32 is switched from the state connected to the speaker 33a and the microphone 34a to the state connected to the speaker 33b and the microphone 34b. The handset call is preferable because the voice of the caller becomes clear when the surroundings are noisy.
In addition, by picking up the handset of the local maintenance telephone 30b, the local maintenance telephone 30b can similarly perform a handset call using the handset.

[Modification]
The telephone plug 35 and the telephone jacks 13 and 23 have been described as examples of the detachable part and the detachable part, but other things such as connectors, pin plugs and pin jacks, modular jacks and modular plugs may be used.
As a modification, the maintenance telephone 30 may be built in the fire receiver or the terminal device.

  Further, instead of the handset call means, an external call device such as a headphone microphone and an external call device call means having a connection terminal for connecting the external call device may be used. In this case, when an external call device is connected to the connection terminal, the call is switched from the hands-free call means to the call by the external call device call means.

  Further, in place of the handset call means, a wireless external call device such as a wireless headphone microphone and a wireless external call device call means having a transmission / reception circuit for transmitting and receiving sound to and from the wireless external call device may be used. In this case, a changeover switch for switching from hands-free calling means to calling by the wireless external calling device calling means is provided.

  As described above, according to the first embodiment, for example, during construction and maintenance, a call is performed by a hands-free call in order to improve workability. On the other hand, when the hands-free call is hindered because the site is noisy, for example, the handset call can be performed by turning off the hook switch. In this manner, by switching the switch according to the call application, it is possible to select a desired call method, either a hands-free call or a handset call.

  Furthermore, when making a call, the setting of a hands-free call for improving workability can be set as a default at first. If necessary, it is possible to switch to a handset call by turning off the hook switch.

  Furthermore, it is possible to selectively switch between one-way and two-way hands-free calls by switching the validity / invalidity of the microphone for hands-free calls by switching the transmission switch.

  Further, the maintenance telephone can be easily fixed by providing the maintenance telephone with a configuration in which the magnet can be fixed to the main body of the receiver 10 and the transmitter 20.

  DESCRIPTION OF SYMBOLS 10 Receiver, 11 Control circuit CPU, 12 Transmission / reception part, 13 Telephone jack, 14 Receiver side connection detection circuit, 15 Call circuit, 16 Terminal side connection detection circuit, 17 Speaker, 20 Transmitter, 23 Telephone jack, 30, 30a , 30b Maintenance telephone, 31 Control circuit CPU, 32 Audio circuit, 33a, 33b Speaker, 34a, 34b Microphone, 35 Telephone plug, 36 Telephone line clip, 37 Hook switch, 38 Transmission switch.

Claims (4)

In order to make a call between a fire receiver connected via a telephone line and a terminal device, it is a maintenance telephone for a fire alarm facility connected to an attached / detached part provided in each,
By connecting to the attached / detached portion, an attaching / detaching portion that enables connection with the fire receiver or the terminal device,
A first speaker and a first microphone for hands-free calling;
A second speaker and a second microphone for handset calls;
A call changeover switch for selecting and switching between a hands-free call through the first speaker and the first microphone or a handset call through the second speaker and the second microphone; A maintenance telephone for fire alarm equipment characterized by comprising. In the maintenance telephone for fire alarm equipment according to claim 1,
A maintenance telephone for a fire alarm facility, wherein the call switch is switched to a hands-free call side when the attach / detach section is connected to the attach / detach section. In the maintenance telephone for fire alarm equipment according to claim 1 or 2,
A maintenance telephone for fire alarm equipment, further comprising a transmission switch for switching between enabling / disabling of the first microphone during a hands-free call. In the maintenance telephone for the fire alarm equipment according to any one of claims 1 to 3,
A maintenance telephone for a fire alarm facility, characterized in that a housing has a magnet structure for fixing to the fire receiver or the terminal device.

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