Fire receiver

Abstract

To provide a fire receiver provided with the function of an emergency telephone panel and capable of suppressing the increase of costs and an installation space.SOLUTION: A fire alarm control panel according to the present invention is a fire alarm control panel having a configuration to which a call function using an emergency phone is added, and includes an emergency base unit for performing a call with an emergency handset connected to an external device, and a control unit that enables a voice call with the emergency handset, in which the control unit displays incoming call information and displays an operation guidance of the emergency base unit in a case where there is an incoming call from the emergency handset.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a fire alarm receiver having an emergency call function. [Background technology]

[0002] Conventionally, fire receivers used in fire alarm systems that monitor factors that can cause fires, such as smoke generation, temperature rise, and gas leaks, have been installed in disaster prevention centers, control rooms, etc. Fire receivers determine whether a fire has occurred by receiving signals from one or more terminal devices installed in each fire monitoring area.

[0003] Conventionally, emergency telephone panels equipped with emergency telephones are also installed in disaster prevention centers, control rooms, etc., along with fire alarms. The emergency telephones installed on the emergency telephone panels can be used to make calls to emergency telephone handsets installed in fire hydrant boxes, for example. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-171832 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the conventional techniques have the following problems. In the prior art disclosed in Patent Document 1, it was necessary to separately install an emergency telephone panel with an emergency telephone and a fire receiver in a disaster prevention center, control room, etc. In other words, in order to realize the emergency telephone call function, the prior art required the emergency telephone panel and the fire receiver to be prepared separately. This resulted in an increase in costs and required separate installation space for each.

[0006] The present invention has been made to solve the above-mentioned problems, and aims to provide a fire receiver that also has the function of an emergency telephone panel and can suppress increases in cost and installation space. [Means for solving the problem]

[0007] The fire receiver of the present invention is a fire receiver configured to have an added call function using an emergency telephone, and is equipped with an emergency telephone base unit for making calls between an emergency telephone handset connected to an external device, and a control unit that enables voice calls with the emergency telephone handset, and when an incoming call is received from the emergency telephone handset, the control unit displays incoming call information and operation guidance for the emergency telephone base unit. [Effects of the Invention]

[0008] According to the present invention, a fire control device includes an emergency telephone base unit and is configured to be able to communicate with an emergency telephone handset. As a result, a fire control device can be obtained that also functions as an emergency telephone panel and can suppress increases in cost and installation space. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an overall configuration diagram of a fire alarm system according to a first embodiment of the present invention. [Figure 2] 1 is a functional block diagram of a fire control receiver according to a first embodiment of the present invention. [Figure 3] FIG. 10 is a diagram showing an example of a screen displaying a case where three overlapping events are detected in the first embodiment of the present invention. [Figure 4] 1 is a diagram showing the overall configuration of a conventional fire alarm system that includes an emergency telephone panel and a conventional fire receiver and that makes calls via emergency telephone. [Figure 5] 1 is a first explanatory diagram showing a configuration in which an emergency call function is added to a fire control panel according to a first embodiment of the present invention. FIG. [Figure 6] FIG. 2 is a second explanatory diagram showing a configuration in which an emergency call function is added to the fire control panel according to the first embodiment of the present invention. [Figure 7] 1 is a functional block diagram of a fire control signal receiver having a communication function using an emergency telephone according to a first embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a fire alarm receiver according to the present invention will now be described with reference to the accompanying drawings.

[0011] Embodiment 1 First, we will explain the functions of the fire receiver other than the emergency telephone function. Fig. 1 is an overall configuration diagram of a fire alarm system according to a first embodiment of the present invention. The fire alarm system shown in Fig. 1 is configured to include a fire receiver 10, four terminal devices 20(1) to 20(4), and a repeater 30. Here, two terminal devices 20(1) and 20(2) and the repeater 30 are directly connected to the fire receiver 10. Furthermore, two terminal devices 20(3) and 20(4) are directly connected to the repeater 30, and are connected to the fire receiver 10 via this repeater 30. Note that the numbers of terminal devices 20 and repeaters 30 are not limited to those shown in the example of Fig. 1.

[0012] The fire alarm system shown in Fig. 1 is a so-called R-type fire alarm system. Therefore, the four terminal devices 20(1) to 20(4) output measurement results, detection results, etc. as analog signals, and the fire control panel 10 determines whether or not a fire has occurred based on the reception of these analog signals.

[0013] Representative examples of the terminal device 20 include the following photoelectric analog sensors and thermal analog sensors. Photoelectric analog detector In a fire monitoring area, the light emitted from the light-emitting unit is dimmed by the influence of smoke and received by the light-receiving unit, thereby enabling the detection of the occurrence of smoke as an analog value. Alternatively, the light emitted from the light-emitting unit is scattered by smoke particles and the scattered light is received by the light-receiving unit, enabling the detection of the occurrence of smoke as an analog value. Thermal analog detector In a fire monitoring area, it corresponds to a heat detector that can detect heat as an analog value.

[0014] In addition, measuring instruments for measuring temperature, air pressure, humidity, CO gas, etc. can also be used as terminal devices that can measure the surrounding conditions in the fire monitoring area.

[0015] Furthermore, various sensors such as those listed below can also be used as terminal devices. Pressure sensors By connecting a pressure sensor to the piping route of the fire extinguishing system and monitoring the pressure inside the piping, it is possible to know the status of sprinkler discharge, etc.

[0016] Furthermore, by using a repeater that measures 4-20 mA current, commercially available sensors that are compatible with the industry standard of 4-20 mA current measurement can be freely connected as terminal devices 20. Specific examples of such sensors include gas sensors and flame sensors.

[0017] It is also possible to use a transmitter that notifies the occurrence of a fire when a button is pressed as the terminal device 20. That is, the terminal device 20 used in the present embodiment 1 transmits, as transmission information, fire-related information that is used by the fire receiver 10 to determine whether or not a fire has occurred. The transmission information is configured to include the various types of sensing result information, measurement result information, operation result information, etc., as described above.

[0018] It is possible to display the detection results from the terminal device 20 not only in real time but also in time series data over a certain period as a trend history on the fire alarm receiver. By providing a function to display such trend data, it becomes possible to more quickly identify the cause of a false alarm.

[0019] For example, if the detection results of a pressure sensor are recorded as a trend history of time-series data, it will be possible to verify after the fact whether the pressure was released all at once or gradually.

[0020] When a gas sensor is used as the terminal device 20, the trend history of the gas concentration obtained as time-series data of the detection results can be used for post-event verification. Similarly, when a flame sensor is used as the terminal device 20, the trend history of the flame size obtained as time-series data of the detection results can be used for post-event verification.

[0021] Furthermore, when detecting air pressure using a differential heat detector as the terminal device 20, a sudden drop in air pressure may cause a false alarm. Even in such a case, the cause of the false fire alarm from the differential heat detector can be identified by referring to the trend history of air pressure obtained as time-series data of the detection results.

[0022] Figure 2 is a functional block diagram of the fire receiver 10 according to the first embodiment of the present invention. Note that the multiple terminal devices 20(1) to 20(4) shown in Figure 1 are simply shown as multiple terminal devices 20 in Figure 2. The multiple terminal devices 20 may be various sensors and measuring instruments as described above, and can be installed in a desired fire monitoring area.

[0023] 2 is configured to include the following mechanisms: a receiving unit 11, a memory control unit 12, a fire detection unit 13, a display control unit 14, an operation control unit 15, a memory unit 16, an alarm unit 17, a display unit 18, and an operation unit 19. The functions of the receiving unit 11, the memory control unit 12, the fire detection unit 13, the display control unit 14, and the operation control unit 15 can also be performed collectively by a single control unit.

[0024] The receiving unit 11 acquires the analog signals output as transmission information from each terminal device 20 at a predetermined sampling interval, and then performs analog-to-digital conversion to generate digital values. Note that the sampling interval does not need to be a common value for all terminal devices 20, and an appropriate value can be set individually depending on the physical quantity to be measured, the fire monitoring area, etc.

[0025] The memory control unit 12 sequentially stores the digital values ​​of the detection results by each terminal device 20, which are generated by the receiving unit 11, in the memory unit 16. At this time, the memory control unit 12 updates the stored data so that time-series data for a predetermined period of time remains in the memory unit 16. For example, for time-series data in which 10 pieces of data are obtained within a certain period of time, the memory control unit 12 performs an update process for the time-series data so that the most recent 10 pieces of data are stored in the memory unit 16. Therefore, by performing the sequential update process, the transition state of the most recent measurement value in the most recent predetermined period of time is stored in the memory unit 16.

[0026] The fire determination unit 13 determines whether or not a fire has occurred based on the latest time-series data or the latest real-time data stored in the memory unit 16. Furthermore, when the fire determination unit 13 determines that a fire has occurred, it can notify the fire occurrence status via the notification unit 17. Note that the determination process by this fire determination unit 13 is the same as that of the prior art, and a detailed description thereof will be omitted.

[0027] The display control unit 14 performs display control to display the detection results of the terminal devices on the screen of the display unit 18 based on time-series data, which is the detection history of each terminal device, stored in the storage unit 16.

[0028] When the fire detection unit 13 determines that a fire has occurred, the memory control unit 12 continues the update process while separately saving data for a predetermined period of time immediately before the time when it is determined that a fire has occurred. As a result, a trend history with the latest data as of the time when it is determined that a fire has occurred is stored in the memory unit 16 separately from data that has undergone normal update processing. As a result, by performing display control by the display control unit 14, it is possible to easily display time-series data with the latest data as of the time when it is determined that a fire has occurred, making it possible to quickly identify the cause of a false alarm.

[0029] Furthermore, when the fire determination unit 13 determines that three or more events have occurred at the same time, the display control unit 14 can display the three or more events on one screen using background colors that are individually set according to the attributes of the events. Details of this function will be described later with reference to FIG. 3.

[0030] The operation control unit 15 reads operation inputs input by an operator via the operation unit 19 and executes processing according to the operation input. In a fire alarm system such as that shown in Fig. 1, the operator is required to execute appropriate operations according to the event that has occurred, and to quickly issue a fire alert, give instructions for firefighting work, etc.

[0031] The fire receiver 10 of this embodiment 1 is equipped with a display function that, when it receives information indicating that a fire has occurred from multiple terminal devices during a certain period of time (hereinafter, such information will be referred to as events), provides the operator with the multiple events that have occurred at the same time, and enables the operator to reliably recognize all of the multiple events, reducing the risk of overlooking them.

[0032] More specifically, the fire control signal receiver according to the first embodiment has a display function that enables an operator to recognize all of the overlapping events when there are overlapping events occurring in a certain time period, thereby reducing the risk of overlooking any of the events. Therefore, the specific display function will be described in detail with reference to example screens.

[0033] <Screen example: Screen display when three overlapping events are detected> FIG. 3 is a diagram showing an example of a screen displaying a case where three overlapping events are detected in the first embodiment of the present invention.

[0034] The screen display area in Fig. 3 is roughly divided into an upper information display area 110 and a lower operation display area 120. The information display area 110 shows a display example in which a first event 111, a second event 112, and a third event 113 occur simultaneously within a certain time period. Specifically, Fig. 3 shows an example in which the following three events occur simultaneously:

[0035] First event 111: The fire determination unit 13 receives alert information from one transmitter, determines it as one piece of fire occurrence information, and displays the fact that a fire has occurred. Second event 112: The fire determination unit 13 receives information from one fire damper that the fire damper has been closed and information that one fire pump has been activated, determines this as one piece of fire occurrence information, and displays that the terminal device has been activated. Third event 113: The fire determination unit 13 receives detection information from one gas leak detector, determines it as one piece of fire occurrence information, and displays that a gas leak alarm has occurred.

[0036] The operation display area 120 also includes a character display area 120A on the left side and an illustration display area 120B on the right side.

[0037] In the screen example 1 shown in Fig. 3, the display control unit 14 displays a first event 111, a second event 112, and a third event 113 that have occurred at the same time in a distinctive manner on one screen. In particular, the display control unit 14 displays the specific occurrence or operation details, together with the location of the occurrence, in text on the display unit 18. As a result, a fire receiver can be realized that can reduce the possibility that the operator will overlook any of the events when multiple events occur at the same time.

[0038] When displaying multiple overlapping events, the display control unit 14 can distinguishably display the first event 111, the second event 112, and the third event 113 by using different character colors or background colors. By not only displaying multiple events simultaneously but also displaying each event in a distinguishable color, it is possible to further reduce the possibility that the operator will overlook any of the events even when multiple overlapping events occur.

[0039] It is also possible to specify in advance the color of the text or the background color according to the type of event. For example, a background color pattern can be specified according to the attribute of each event, such as a first event indicating that a fire has occurred, a red background color, a second event indicating that a terminal device has been activated, a blue background color, and a third event indicating that a gas leak alarm has been issued, a yellow background color. This reduces the risk that the operator will overlook any event even when multiple events occur at the same time, and enables the operator to easily identify the attributes of the events based on the background color pattern.

[0040] Next, a method for incorporating the function of the emergency telephone panel 300 into the fire control panel 10 will be described. Fig. 4 is an overall configuration diagram of a conventional fire alarm system that includes an emergency telephone panel 300 and a conventional fire receiver 200 and that performs emergency telephone calls. As shown in Fig. 4, in the conventional fire alarm system, in order to perform calls with an emergency telephone handset 400a installed in an external device, such as a fire hydrant box 400, it was necessary to install the emergency telephone panel 300, which has an emergency telephone panel operation unit 310 with an emergency telephone 310a installed, separately from the fire receiver 200. Therefore, providing the emergency telephone panel 300 resulted in increased costs and an increase in installation space.

[0041] Therefore, in the first embodiment, a configuration is realized in which a call function using an emergency telephone by the emergency telephone panel 300 is incorporated into the fire control panel 10 shown in Figs. 1 and 2, which will be described in detail below.

[0042] Fig. 5 is a first explanatory diagram showing a configuration in which a call function using an emergency telephone is added to the fire control panel 10 according to the first embodiment of the present invention. As shown in Fig. 5, an emergency telephone base unit 10a is newly installed in the fire control panel 10. Furthermore, the fire control panel 10 and the fire hydrant box 400 are interconnected via an emergency telephone repeater 50 to enable voice calls between the emergency telephone base unit 10a on the fire control panel 10 side and the emergency telephone handset 400a on the fire hydrant box 400 side.

[0043] 6 is a second explanatory diagram showing a configuration in which a call function using an emergency telephone is added to the fire control panel 10 according to the first embodiment of the present invention. The operation of the fire control panel 10 when there is an incoming call from the emergency telephone handset 400a will be described in detail with reference to FIG.

[0044] The outgoing signal from the emergency telephone handset 400a is received by the communication unit 11a in the fire control panel 10 via the emergency telephone repeater 50. The communication unit 11a will be described later in FIG. 7. When the communication unit 11a receives the outgoing signal, it notifies the display control unit 14 in the fire control panel 10 of the signal as incoming call information from the emergency telephone handset 400a. As a result, the display control unit 14 displays the signal as shown on the left side of FIG. 6 in the screen display area of ​​the fire control panel 10.

[0045] Specifically, the upper information display area 110 displays incoming call information informing the user that an incoming call has been received from the emergency telephone handset 400a, and the lower operation display area 120 displays specific operation guidance for the emergency telephone base unit 10a for making a call with the emergency telephone handset 400a.

[0046] Therefore, the operator can easily make a voice call between the emergency telephone base unit 10a equipped in the fire control signal receiver 10 and the emergency telephone handset 400a via the emergency telephone repeater 50. In this way, a fire control signal receiver 10 can be realized which has the functions of the emergency telephone panel 300 and can suppress increases in cost and installation space.

[0047] Fig. 7 is a functional block diagram of a fire control panel 10 having a call function using an emergency telephone according to the first embodiment of the present invention. Compared to the functional block diagram shown in Fig. 2, the fire control panel 10 shown in Fig. 7 has a communication unit 11a instead of the receiving unit 11. Here, the communication unit 11a has both a receiving function for receiving fire-related information from each of the multiple terminal devices 20 and a communication control function for realizing calls between the emergency telephone base unit 10a and the emergency telephone handset 400a.

[0048] The fire control signal 10 is also configured to be connectable to a maintenance telephone used by workers during construction and maintenance. When the telephone plug of the maintenance telephone handset is inserted into a telephone jack installed on the site, such as a transmitter, the fire control signal 10 outputs a ring tone. When an operator then inserts the telephone plug of the maintenance telephone handset into the telephone jack installed on the fire control signal 10, they can talk to the site. Therefore, when the function of the emergency telephone panel 300 is incorporated into the fire control signal 10, it is important to distinguish between the ring tone when a maintenance call is received and the ring tone when an emergency call is received.

[0049] Furthermore, in addition to the incoming call from the emergency telephone handset 400a, it is possible that duplicate fire outbreak information may arrive at the fire control panel 10 from the terminal device 20, etc. Therefore, it is important to identify and notify the multiple pieces of information that are received in duplicate by the fire control panel 10. Therefore, the notification process when duplicate information occurs will be described in detail below using a specific example.

[0050] <Example 1: Distinguishing between emergency calls and maintenance calls> The fire control device 10 can distinguish between incoming calls from the emergency telephone handset 400a and incoming calls from the maintenance telephone by making the notification unit 17 notify the incoming calls from the emergency telephone handset 400a as different sounds. For example, when an incoming call is received from a maintenance telephone, an alarm sound such as "pururu-ru" is output, and when an incoming call is received from the emergency telephone handset 400a, an alarm sound such as "piroriro-ro" is output.

[0051] <Example 2: When three or more events occur simultaneously, notification processing is performed taking into account priority> When three or more events occur simultaneously, it is conceivable that, according to a predetermined priority, the top two events will be notified using an alarm sound and a voice alert, and the remaining events will be notified using only a voice alert. By performing this type of notification processing, it is possible to avoid a situation where three or more events are notified using an alarm sound at the same time, and it is also possible to notify using a voice alert and display text information for all events.

[0052] For example, consider a case where the following three events, Event 1 to Event 3, occur simultaneously, in descending order of priority. Event 1: Fire confirmed Notification using alarm sound "Beep" Voice notification: "Fire has broken out. Please check the area." Event 2: Emergency call "Piroriro" alarm sound notification Voice notification: "An emergency call has been received." Event 3: Gas Leak Notification using alarm sound "Beep beep beep" Voice notification: "A gas leak has occurred. Please check the site."

[0053] If these three events 1 to 3 occur at the same time, the alarm sound notification will be "beep" for event 1 and "piroriroro" for event 2, and the alarm sound notification "beeppipipi" for event 3 will be omitted.

[0054] Meanwhile, audio alerts are issued for all of Events 1 to 3, and text information is displayed in the information display area 110. By stopping the audio alerts for Events 1 and 2, an alert using a "beep beep beep" sound for Event 3 can be issued. In this case, the audio alerts and voices are repeated in the following order: "Beep," "A fire has occurred. Please check the site," "Piroriro," "An emergency call has been received," and "A gas leak has occurred. Please check the site."

[0055] <Example 3: Events with lower importance, such as the activation of terminal devices or fire prevention equipment> Consider a case where, in addition to Events 1 to 3 shown in Specific Example 2, Events 4 to 6 as follows occur simultaneously. Event 4: Fire door activation Notification using alarm sound "Boo" Voice notification: "Fire doors have been activated. Please check the area." Event 5: Fire shutter activation Notification using alarm sound "Boo" Voice notification: "Fire shutters have been activated. Please check the site." Event 6: Terminal device activation Notification using alarm sound "Boo" Voice notification: "The terminal has been activated. Please check the site."

[0056] These three events 4 to 6 are assumed to be predetermined as events with lower priority and importance than events 1 to 3. In this case, it is possible to prevent notifications using either an alarm sound or voice for events 4 to 6.

[0057] In this case, too, the alarm sounds and voices are repeated in the following order: "Beep," "A fire has broken out. Please check the site," "Pee-ro-ro," "An emergency call has been received," and "A gas leak has occurred. Please check the site." At this time, events 4 to 6 may be displayed in the information display area 110 together with events 1 to 3, or may be displayed by the operator scrolling the screen.

[0058] Furthermore, by stopping the notification using the alarm sound for events 1 to 3, the notification using the alarm sound "boom" for events 4 to 6 can be executed.

[0059] By performing the notification processing as shown in the above-mentioned specific examples 1 to 3, the fire receiver 10, which also has the functions of the emergency telephone panel 300, can distinguish between incoming emergency calls and maintenance calls, and can appropriately identify and notify overlapping fire-related information and incoming call information according to priority.

[0060] The number of events that will be notified using both a preset alarm sound and voice for each event can be set to a desired number depending on the usage environment, etc., as a predetermined number of events from the top based on a predetermined priority.

[0061] As described above, according to the first embodiment, it is possible to realize a fire control device that combines the functions of an emergency telephone panel and can suppress increases in cost and installation space. Furthermore, by performing notification processing according to priority, it is possible to distinguish between incoming emergency calls and maintenance calls, and to appropriately notify overlapping fire-related information. [Explanation of symbols]

[0062] 10 Fire receiver, 10a Emergency telephone base unit, 11a Communication unit, 12 Memory control unit, 13 Fire detection unit, 14 Display control unit, 15 Operation control unit, 16 Memory unit, 17 Alarm unit, 18 Display unit, 19 Operation unit, 20 Terminal equipment, 30 Repeater, 50 Emergency telephone repeater, 400a Emergency telephone handset.

Claims

[Claim 1] A fire receiver equipped with a configuration that adds a call function using an emergency telephone, an emergency telephone base unit for making calls between the emergency telephone handset connected to the external device; a control unit that enables voice communication with the emergency telephone handset; Equipped with When an incoming call is received from the emergency telephone handset, the control unit displays incoming call information and also displays operation guidance for the emergency telephone base unit. Fire receiver.

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