JP7452966B2 - Disaster prevention monitoring system - Google Patents

Description

The present invention relates to a disaster prevention monitoring system.

Patent Document 1 listed below discloses a disaster prevention monitoring device in which a fire reception board is equipped with a fire receiver and an emergency telephone main unit.
The emergency phone base unit is connected to multiple emergency phone handsets placed within the facility via telephone lines, and when it receives an incoming call signal from the emergency phone handset, it can call and respond to the call. It is possible to talk to the emergency phone handset.

JP 2019-79379 Publication

By the way, there are cases where it is desired to call the emergency telephone base unit and the emergency telephone slave unit from the emergency telephone base unit. In this case, the worker is required to input the address and location of the emergency telephone handset that he or she wishes to call using a numeric keypad provided on the emergency telephone main unit, which is troublesome.

The present invention has been made in view of the above circumstances, and its purpose is to provide a disaster prevention monitoring system that allows an emergency telephone handset to be easily called from an emergency telephone base.

(1) One aspect of the present invention is a disaster prevention monitoring system comprising an emergency telephone handset and an emergency telephone base unit capable of communicating with the emergency telephone handset, the system comprising a storage unit and an emergency telephone base unit capable of communicating with the emergency telephone handset. On the other hand, when an incoming call signal is received from the emergency telephone handset, a control unit stores caller information indicating the sender of the incoming call signal in the storage unit as an incoming call history, and the control unit includes: The disaster prevention monitoring system is characterized in that any of the emergency telephone slave units selected from the incoming call history is called from the emergency telephone base unit.

(2) The disaster prevention monitoring system according to (1) above, which includes an operation section that can be operated by a user and a display section that can display information, and the control section receives an incoming call signal from the emergency telephone handset. The display control unit includes a display control unit that displays source information indicating the source of the incoming call signal as an incoming call display on the display unit when the incoming call signal is received, and the display control unit The incoming call history stored in the storage unit may be displayed on the display unit as a history display by shifting to the incoming call history display mode.

(3) The disaster prevention monitoring system according to (2) above, wherein the storage section, the control section, the display section, and the control section are provided in the emergency telephone base unit, and the display section displays the incoming call. The area where the sender information is displayed when displaying the history and the area where the sender information is displayed when displaying the history may be the same area.

(4) In the disaster prevention monitoring system according to (3) above, when the display control unit receives an incoming call signal from the emergency telephone handset while displaying the history, the display control unit exits the incoming call history display mode. The display may be switched from the history display to the incoming call display.

(5) The disaster prevention monitoring system according to any one of (3) to (4) above, wherein the emergency telephone main unit is capable of selecting arbitrary caller information from the incoming call history displayed. A selection unit, wherein the control unit performs call control to call the emergency telephone handset by transmitting a calling signal specifying the emergency telephone handset indicated by the selected caller information to the selection unit. It may also include a part and.

(6) In the disaster prevention monitoring system according to any one of (2) to (5) above, the display control unit may display a plurality of outgoing calls included in the incoming call history in the incoming call history display mode. Among the source information, the latest source information may be displayed in a first color, and the source information other than the latest source information may be displayed in a second color different from the first color. .

As explained above, according to the present invention, it is possible to easily call an emergency telephone handset from an emergency telephone main unit.

1 is a diagram showing an example of a schematic configuration of a disaster prevention monitoring system A including a disaster prevention monitoring device 4 according to the present embodiment. 1 is a schematic configuration diagram of an emergency telephone main unit 5 according to the present embodiment. It is a figure showing the board of emergency telephone main unit 5 concerning this embodiment.

Hereinafter, the disaster prevention monitoring system A according to the present embodiment will be explained using the drawings.

FIG. 1 is a diagram showing an example of a schematic configuration of a disaster prevention monitoring system A according to this embodiment. As shown in FIG. 1, the disaster prevention monitoring system A includes a terminal device 1, an emergency telephone handset 2, a repeater 3, and a disaster prevention monitoring device 4. The disaster prevention monitoring device 4 includes an emergency telephone main unit 5 and a receiver 6. The disaster prevention monitoring device 4 of this embodiment has a receiving board B, and the emergency telephone base unit 5 and the receiver 6 are integrated with the receiving board B.

The plurality of terminal devices 1 are arranged on the ceiling, wall, etc. of each floor of a building. For example, the terminal device 1 is a variety of sensors such as a heat sensor and a smoke sensor, a transmitter, a repeater, a district sound device, a light alarm device, and the like. For example, one or more terminal devices 1 are arranged on each floor at legal installation intervals. The terminal device 1 is connected to a receiver 6 via a transmission line D. Note that each terminal device 1 may be connected to the receiver 6 wirelessly instead of by wire.
When the terminal device 1 (for example, a transmitter) detects the occurrence of a fire, it transmits an alarm signal indicating the occurrence of a fire to the receiver 6 via the transmission line D.

A plurality of emergency telephone handsets 2 are arranged within the facility. The emergency telephone handset 2 is connected to the emergency telephone main unit 5 via a repeater 3. The emergency telephone handset 2 includes a handset 2a, and when the handset 2a at a predetermined position is removed from the hook (so-called off-hook), it transmits an incoming signal to the receiver 6 via the repeater 3. As a result, a transfer signal is transmitted from the receiver 6 connected to the emergency telephone base unit 5 to an emergency broadcasting facility (not shown), and the emergency broadcasting facility issues an emergency alarm.
Furthermore, when the emergency telephone handset 2 establishes a call with the emergency telephone main unit 5, the emergency telephone handset 2 converts the voice input into the handset 2a into a signal (audio signal) and transmits it to the receiver 6 via the repeater 3. do.

The repeater 3 is connected between the emergency telephone main unit 5 and one or more emergency telephone slave units 2. The repeater 3 is connected to the emergency telephone main unit 5 via the first telephone line L1. Moreover, the repeater 3 is connected to one or more emergency telephone slave units 2 via the second telephone line L2.
The repeater 3 relays communication between the emergency telephone main unit 5 and one or more emergency telephone slave units 2. When the repeater 3 receives an incoming call signal transmitted from the emergency telephone handset 2 via the second telephone line L2, the repeater 3 transmits information (hereinafter referred to as "identification information") that can identify the emergency telephone handset 2 that is the originator. ) is added to the incoming signal and transmitted to the emergency telephone main unit 5 via a signal line Ld1 (not shown) installed in parallel with the first telephone line L1. This identification information is unique information of the repeater 3 that connects to the emergency telephone handset 2 that is the caller, and includes, for example, the address assigned to the repeater 3 and the emergency The information specifies the line connected to the telephone handset 2, and may be based on two pieces of information, for example, the line number of the line connected to the emergency telephone handset 2. Further, the identification information is information unique to the emergency telephone handset 2 that is the originator, and may be, for example, an address assigned to the emergency telephone handset 2.

Further, the repeater 3 may have a function of converting the audio signal from the emergency telephone slave unit 2 into a digital signal and transmitting the digital signal to the emergency telephone base unit 5.

The emergency telephone main unit 5 can communicate with one or more emergency telephone handsets 2. That is, when the emergency telephone main unit 5 responds to an incoming call (also referred to as an incoming call) from the emergency telephone handset 2, a call start command is transmitted from the emergency telephone main unit to the repeater 3 via the signal line Ld1. By connecting the first telephone line L1 and the second telephone line L2 with the repeater 3, it is possible to talk to the emergency telephone handset 2. Incoming call according to this embodiment means receiving an incoming call signal.

The emergency telephone main unit 5 can call any emergency telephone handset 2 among the one or more emergency telephone handsets 2. That is, the emergency telephone main unit 5 can call the emergency telephone handset 2 via the repeater 3 by specifying and making a call to any emergency telephone handset 2 among one or more emergency telephone handsets 2. can. Transmission according to this embodiment means transmitting a transmission signal.
Here, when the emergency telephone main unit 5 receives an incoming call signal from the emergency telephone handset 2, it stores the caller information, which is the information of the sender of the incoming signal, as an incoming call history, and based on the incoming call history. It is possible to call any selected emergency telephone handset 2. The sender information may be any information as long as the sender can be identified, and may be information indicating the installation location of the sender (installation location information described later), unique identification information of the sender (e.g. , address).

Further, when the emergency telephone main unit 5 receives an incoming call signal, it transmits the incoming call signal to the receiver 6.

The receiver 6 is connected to the emergency telephone base unit 5 via a telecommunications line. For example, the receiver 6 is configured to perform serial communication with the emergency telephone base unit 5 in accordance with RS485.

When receiving the alarm signal from the terminal device 1, the receiver 6 notifies the user of the occurrence of a fire. For example, upon receiving the alarm signal from the terminal device 1, the receiver 6 transmits a relocation signal to emergency broadcast equipment (not shown). As a result, an emergency alarm (bell sound or announcement) is issued from the emergency broadcast equipment.
Furthermore, upon receiving the alarm signal from the terminal device 1, the receiver 6 notifies the occurrence of a fire. For example, when the receiver 6 receives an incoming call signal from the emergency telephone base unit 5, it transmits a redirection signal to the emergency broadcast equipment. As a result, an emergency alarm (bell sound or announcement) is issued from the emergency broadcast equipment. In this way, when the receiver 6 receives at least one of the alarm signal from the terminal device 1 and the incoming call signal from the emergency telephone main unit 5, it transmits a redirection signal to the emergency broadcast equipment. to notify the fire outbreak.
The receiver 6 may be a so-called R-type receiver or a P-type receiver.

For example, the receiver 6 includes a display section 61 and a control section 62.

The display section (first display section) 61 includes a liquid crystal display and an indicator light. For example, the display unit 61 displays the location where the terminal device 1 that outputs the alarm signal to the receiver 6 is installed as the location where the fire occurred, along with a display indicating that a fire has occurred.

The control unit 62 includes a microprocessor such as a CPU or MPU, a microcontroller such as an MCU, and the like.
The control unit 62 performs various controls regarding the receiver 6. When the control unit 62 determines that there is a fire based on at least one of the alarm signal from the terminal device 1 and the incoming call signal from the emergency telephone base unit 5, it transmits the emergency broadcast equipment relocation signal. Further, the control unit 62 controls the display on the display unit 61.

Next, the configuration of the emergency telephone main unit 5 according to this embodiment will be explained using FIGS. 2 and 3. FIG. 2 is a schematic configuration diagram of the emergency telephone main unit 5 according to the present embodiment. FIG. 3 is a diagram showing the panel of the emergency telephone base unit 5 according to the present embodiment.

As shown in FIG. 2, the emergency telephone main unit 5 includes a handset 10, a first operation section 11, a status indicator light 12, a second operation section 13, a third operation section 14, an indicator light 15, a display section 16, and a selection section. section 17, a fourth operation section 18, a speaker 19, a storage section 20, and a control section 21.

The handset 10 is connected to the control unit 21 by wire or wirelessly. When the handset 10 is removed from the hook (hereinafter referred to as a "response operation"), it becomes capable of communicating with the emergency telephone handset 2. That is, the response operation is what is called off-hook.

The first operation unit 11 includes a numeric keypad and a decision button. The user can call the emergency telephone handset 2 by operating the first operation unit 11 and inputting the destination information of the emergency telephone handset 2 that the user wants to call from the emergency telephone base unit 5 . Note that the user is a person who uses the emergency telephone base unit 5, and is, for example, a builder or a manager.

The lighting of the status indicator light 12 is controlled by the control unit 21 . The status indicator light 12 includes a plurality of indicator lights 12-1 to 12-3.

The indicator light 12-1 lights up when the voltage of the internal circuit of the emergency telephone main unit 5 is at a normal value.
The indicator light 12-2 lights up when a storage battery (not shown) provided in the emergency telephone base unit 5 is being charged (including trickle charging).
The indicator light 12-3 lights up when the handset 10 is out of a predetermined space.

The second operation unit 13 is a switch that can be operated by the user. For example, the second operation unit 13 includes an interlocking stop switch 13-1 and a storage battery test switch 13-2.

When operated by the user, the interlocking stop switch 13-1 outputs a transfer stop signal to the control unit 21 to stop the transfer of messages to the emergency broadcast equipment. Thereby, when the control unit 21 obtains the transfer stop signal, it communicates with the receiver 6 and stops the output of the transfer signal from the receiver 6 to the emergency broadcast equipment.

When operated by the user, the storage battery test switch 13-2 outputs a test start signal to the control unit 21 instructing execution of a test for checking the voltage of the storage battery. Thereby, upon acquiring the test start signal, the control unit 21 executes a test to check the voltage of the storage battery.

The third operation unit 14 is an operation unit that can be operated by the user. The third operation unit 14 is operated by the user when transitioning to the incoming call history display mode. The incoming call history display mode is a mode in which the incoming call history is displayed on the display unit 16. In the following description, displaying the incoming call history on the display unit 16 may be referred to as history display. Note that the third operation unit 14 may be a touch panel or a switch.

The indicator light 15 is always lit only in the incoming call history display mode. The lighting of the indicator light 15 is controlled by the control unit 21.

The display section (second display section) 16 can display various information. The display on the display section 16 is controlled by the control section 21. For example, the display unit 16 is a liquid crystal display or a 7-segment display.
The display unit 16 displays the incoming call history in the incoming call history display mode. Furthermore, when the emergency telephone base unit 5 receives an incoming call signal, the display unit 16 displays the source information of the caller that is transmitting the incoming call signal.

As an example, as shown in FIG. 3, the display section 16 includes a plurality of display areas 16x (display areas 16a to 16c). In the present embodiment, the display unit 16 includes three display areas 16a to 16c, but the display unit 16 is not limited to this, and may have two or more display areas. The display area 16x is provided in the order of display area 16a, display area 16b, and display area 16c. Note that each of the plurality of display areas 16a to 16c has a similar configuration, and when not distinguished from each other, they are simply referred to as "display area 16x."

The display area 16x includes a first display area 161 and a second display area 162.
The first display area 161 is a liquid crystal display or a 7-segment display, and is capable of displaying sender information.
The second display area 162 is a liquid crystal display or a 7-segment display, and is capable of displaying the order of incoming calls from the caller indicated by the caller information displayed in the first display area 161.

The selection unit 17 is an operation unit that can select arbitrary caller information from the incoming call history displayed on the display unit 16. The selection unit 17 is operated by the user. Note that the selection unit 17 may be a touch panel or a switch.
The selection unit 17 of this embodiment includes a selection switch 171 provided for each display area 16x. For example, the selection switch 171a is provided corresponding to the display area 16a. The selection switch 171b is provided corresponding to the display area 16b. The selection switch 171c is provided corresponding to the display area 16c.

Therefore, when the selection switch 171a is pressed, the emergency telephone handset 2 indicated by the caller information displayed in the display area 16a is selected as the destination of the emergency telephone main unit 5. When the selection switch 171b is pressed, the emergency telephone handset 2 indicated by the caller information displayed in the display area 16b is selected as the destination of the emergency telephone main unit 5. When the selection switch 171c is pressed, the emergency telephone handset 2 indicated by the caller information displayed in the display area 16c is selected as the destination of the emergency telephone main unit 5.

The fourth operation section 18 includes a scroll operation section 18-1 and a fault display operation section 18-2.
The scroll operation section 18-1 includes a scroll indicator light 18a-1 and a scroll switch 18b-1.
The scroll indicator light 18a-1 is turned on under the control of the control unit 21 when the number of sender information of the incoming call history displayed on the display unit 16 exceeds a specified number (“3” in this embodiment). do.
The scroll switch 18b-1 is a switch for scrolling the caller information of the incoming call history displayed on the display unit 16. For example, when the scroll switch 18b-1 is operated, the caller information of the incoming call history displayed on the display unit 16 is changed according to the order of incoming calls.

The fault display operation section 18-2 includes a fault indicator light 18a-2 and a fault display switch 18b-2.

The fault indicator light 18a-2 lights up when a fault occurs in the emergency telephone base unit 5.
The fault display switch 18b-2 is a switch for displaying a fault code of a fault that has occurred in the emergency telephone base unit 5 on the display unit 16.

The speaker 19 outputs a predetermined ring tone when a call is received from the emergency telephone handset 2 to the emergency telephone main unit 5. Thereby, when there is an incoming call from the emergency telephone handset 2 to the emergency telephone main unit 5, a ringing tone is sounded.

The storage unit 20 stores various information. The storage unit 20 stores an incoming call history. Further, the storage unit 20 stores an information table (for example, a lookup table) for specifying the installation locations of the plurality of emergency telephone handsets 2.
The information table includes unique identification information of the emergency telephone handset 2 (for example, information consisting of the address of the connected repeater 3 and the line number of the line to which the emergency telephone handset is connected among the lines of the repeater). , or an address unique to the emergency telephone handset 2) and information on the installation position of the emergency telephone handset 2 (hereinafter referred to as "installation position information") are associated with each emergency telephone handset 2. The installation position information is, for example, position information within a facility indicated by building, floor, and number (floor). However, the installation position information is not limited to the information on the building, floor, and number (floor), and is sufficient as long as the installation position of the emergency telephone handset 2 can be specified.

The control unit 21 includes a microprocessor such as a CPU or MPU, a microcontroller such as an MCU, and the like. For example, the control unit 21 may be an information processing device such as a computer.

The control unit 21 communicates with the control unit 62. For example, the control unit 21 performs serial communication with the control unit 62 in accordance with RS485.
When the control unit 21 receives an incoming call signal from the emergency telephone handset 2, the control unit 21 stores source information indicating the sender of the incoming signal in the storage unit 20 as an incoming call history. Here, the sender information may be unique identification information of the sender, or may be installation location information of the sender. The control unit 21 has a function that can call any emergency telephone handset from the incoming call history.

Each function of the control unit 21 in this embodiment will be explained below using FIG. 2.
The control unit 21 includes a processing unit 30, a display control unit 31, and a call control unit 32.

When the processing unit 30 receives an incoming call signal from the emergency telephone handset 2, it transmits the incoming signal to the receiver 6, and also records source information, which is information about the sender of the incoming signal, as an incoming call history. It is stored in the storage unit 20. For example, when the processing unit 30 receives an incoming signal from the emergency telephone handset 2, it stores the address included in the incoming signal in the storage unit 20 as an incoming call history. Further, when receiving an incoming call signal from the emergency telephone handset 2, the processing unit 30 reads the installation position information associated with the address included in the incoming signal from the information table, and The location information may be stored in the storage unit 20 as an incoming call history. Note that, for example, the processing unit 30 stores the caller information in the storage unit 20 in the order of arrival.

When the display control unit 31 receives an incoming call signal from the emergency telephone handset 2, the display control unit 31 displays source information indicating the source of the incoming call signal on the display unit 16 as an incoming call display.
When the third operation section 14 is operated, the display control section 31 shifts to the incoming call history display mode and displays the incoming call history stored in the storage section 20 on the display section 16 as a history display. However, when the display control unit 31 receives an incoming call signal from the emergency telephone handset 2 while displaying the history, it exits the incoming call history display mode and switches from the history display to the incoming call display.

When arbitrary caller information is selected by the selector 17, the call control unit 32 transmits a call signal specifying the emergency telephone handset 2 indicated by the caller information selected by the selector 17. Thereby, the call control unit 32 can call the emergency telephone handset 2.

Below, the operation of the emergency telephone main unit 5 in this embodiment will be explained.
For example, assume that four emergency telephone handsets 2-1 to 2-4 are installed in a facility. In this case, the emergency phone base unit 5 receives calls from the emergency phone handset 2 in the order of emergency phone handset 2-1, emergency phone handset 2-2, emergency phone handset 2-3, and emergency phone handset 2-4. When the signal is received, the processing unit 30 stores the caller information of each of the emergency telephone handsets 2-1 to 2-4 as a call history in the storage unit 20 in the order of the calls.
Also, when an incoming call signal is received from the emergency phone handset 2-1, the caller information of the emergency phone handset 2-1 is displayed in the display area 16a, and when an incoming call signal is received from the emergency phone handset 2-2. If the call or conversation from the emergency telephone handset 2-1 is not completed, the caller information of the emergency telephone handset 2-2 is displayed in the display area 16b, and the incoming call signal is sent from the emergency telephone handset 2-2. If the call or conversation from the emergency telephone handset 2-1 is completed when the call is received, the caller information of the emergency telephone handset 2-1 that was displayed in the display area 16a is not displayed. Therefore, the caller information of the emergency telephone handset 2-2 is displayed in the display area 16a.
If an incoming call signal is received while none of the emergency telephone handsets 2-1 to 2-4 have completed a call or a call, the caller information of the emergency telephone handset 2-1 is displayed in the display area 16a. Then, the caller information of the emergency telephone handset 2-2 is displayed in the display area 16b, and the caller information of the emergency telephone handset 2-3 is displayed in the display area 16c.
Thereafter, when the third operation section 14 is operated, the display control section 31 shifts to the incoming call history display mode, and displays three outgoing calls from the most recent incoming call history among the incoming call history stored in the storage section 20. The original information is read from the storage section 20, and the three read source information are displayed on the display section 16. That is, the display control unit 31 reads each caller information of the emergency telephone handset 2-4, the emergency telephone handset 2-3, and the emergency telephone handset 2-2, and reads the caller information of the emergency telephone handset 2-4. is displayed in the display area 16a, the caller information of the emergency telephone handset 2-3 is displayed in the display area 16b, and the caller information of the emergency telephone handset 2-2 is displayed in the display area 16c. Here, when the scroll switch 18b-1 is operated, the display control unit 31 displays the caller information of the emergency telephone handset 2-3 in the display area 16a, and displays the caller information of the emergency telephone handset 2-2. is displayed in the display area 16b, and the caller information of the emergency telephone handset 2-1 is displayed in the display area 16c.
Note that when the address of the caller is stored in the storage unit 20 as a received call history, the display control unit 31 displays the installation position information associated with the address stored as the received call history in the storage unit 20 in the order of reception. The installation position information may be read from the information table and displayed in each display area 16x as the source information.

Next, assume that the user presses the selection switch 171a. Then, the call control unit 32 transmits a calling signal to the emergency telephone handset 2 indicated by the caller information displayed in the display area 16a. For example, when the installation position information of the emergency telephone handset 2-1 is displayed in the display area 16a, the call control unit 32 transmits a calling signal to the emergency telephone handset 2-1. Thereby, the call control unit 32 can call the emergency telephone handset 2-1. When the handset 2a of the emergency telephone handset 2-1 is taken off the hook, the emergency telephone main unit 5 becomes capable of talking to the emergency telephone handset 2-1. Therefore, when calling the emergency phone handset 2 from the emergency phone base unit 5, the user needs to use the numeric keypad provided on the emergency phone base unit 5 to input the address and location of the emergency phone handset that he or she wishes to call. The emergency phone handset 2 can be easily called.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and includes designs within the scope of the gist of the present invention.

(Modification 1) In the above embodiment, the display control unit 31 displays the latest caller information in the first color among the plurality of caller information included in the incoming call history in the history display in the incoming call history display mode. The source information other than the latest source information may be displayed in a second color different from the first color.

(Modification 2) In the above embodiment, the emergency telephone main unit 5 may be able to talk to two or more emergency telephone handsets 2 at the same time. In this case, the emergency telephone main unit 5 provides information (address and installation position information) that identifies each of the two or more emergency telephone handsets 2 as a call history when making calls with the two or more emergency telephone handsets 2. may be displayed on the display unit 16.

(Modification 3) In the above embodiment, the selection unit 17 may have a function of placing the emergency telephone base unit 5 and the emergency telephone slave unit 2 on hold while the emergency telephone base unit 5 and the emergency telephone slave unit 2 are talking. That is, when any caller information is selected by the selection unit 17 in a mode other than the incoming call history display mode, the emergency phone main unit 5 puts the emergency phone handset 2 indicated by the selected caller information on hold. Good too.

(Modification 4) In the above embodiment, the display control unit 31 may display an address as sender information on the display unit 16 in the history display.

(Modification 5) In the embodiment described above, the second display area 162 is not necessarily required and may be omitted. Furthermore, the display control unit 31 may display, in the second display area 162, the time at which the calls were received instead of the order in which the calls were received.

(Modification 6) In the above embodiment, the incoming call history storage unit 20, the part of the control unit 21 that stores the incoming call history in the storage unit and specifies the emergency telephone handset 2 to be called from the incoming call history, and the display unit 16 may be provided outside the emergency telephone base unit 5. For example, it may be provided in the receiver 6 or a disaster prevention display device connected to the receiver 6.

(Modification 7) In the above embodiment, the incoming call history is distinguished by a predetermined section, for example, every day, and when displaying the incoming call history, the incoming call history before the current section is not displayed. Also good. In this way, for example, by displaying only the incoming call history of the current day, it becomes possible to facilitate the confirmation work.

(Modification 8) In the above embodiment, for example, by long-pressing a scroll button (for example, scroll switch 18b-1), scrolling is performed so that the latest incoming call history or the oldest incoming call history is displayed. It's okay.

(Modification 9) In the above embodiment, when displaying the incoming call history, the incoming call history for which a call was established and the incoming call history for which the call was not established may be displayed so as to be distinguishable.

As described above, when any caller information is selected from the incoming call history, the emergency telephone main unit 5 according to the present embodiment calls the emergency telephone handset 2 indicated by the caller information.

According to such a configuration, when calling the emergency phone handset 2 from the emergency phone base unit 5, there is no need to input the address or location of the emergency phone handset to be called, and the emergency phone handset can be called from the emergency phone base unit 5. can be easily called.

Further, in the emergency telephone base unit 5 according to the present embodiment, the display section 16 serves both as an incoming call display and a history display. For example, in the display unit 16, an area where caller information is displayed when an incoming call is displayed and an area where caller information is displayed when a history is displayed are the same area.
With this configuration, it is not necessary to provide the emergency telephone main unit 5 with a display section for displaying an incoming call and a display section for displaying a history.

In addition, in the emergency telephone base unit 5 according to the present embodiment, the information displayed on the display unit 16 in the history display is only information related to the incoming call history, so when the history display is performed, the receiver 6 Information about other events is not displayed on the display unit 16.

Note that all or part of the control unit 21 described above may be realized by a computer. In this case, the computer may include a processor such as a CPU or a GPU, and a computer-readable recording medium. Then, a program for realizing all or part of the functions of the control unit 21 by a computer is recorded on the computer-readable recording medium, and the program recorded on the recording medium is read by the processor and executed. This can be achieved by Here, the term "computer-readable recording medium" refers to portable media such as flexible disks, magneto-optical disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into computer systems. Furthermore, a "computer-readable recording medium" refers to a storage medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It may also include a device that retains a program for a certain period of time, such as a volatile memory inside a computer system that is a server or client in that case. Further, the above-mentioned program may be one for realizing a part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system. It may also be realized using a programmable logic device such as an FPGA.

1 Terminal device 2 Emergency telephone handset 3 Repeater 4 Disaster prevention monitoring device 5 Emergency telephone main unit 6 Receiver 11 First operation section 14 Third operation section 15 Indicator light 16 Display section 17 Selection section 20 Storage section 21 Control section 30 Processing Section 31 Display control section 32 Call control section

Claims (1)

a terminal device for detecting fire;
emergency phone handset,
A disaster prevention monitor that functions as a receiver that is connected to the terminal device via a transmission line and monitors fires, and as an emergency phone base unit that can communicate with the emergency phone handset via a telephone line. a device;
A disaster prevention monitoring system comprising:
The disaster prevention monitoring device is
a first display unit that displays the installation position of the terminal device related to fire detection among the terminal devices as the location where the fire occurred;
a second display unit that displays a history of incoming calls from the emergency telephone handset together with installation position information of the emergency telephone handset;
a selection unit that is arranged near the second display unit and performs an operation to make a call to an emergency telephone handset corresponding to the incoming call history displayed on the second display unit;
a control unit that calls an arbitrary emergency phone handset selected from the incoming call history by operating the selection unit from the emergency phone base device;
A disaster prevention monitoring system characterized by comprising :

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