Fire receiver

Abstract

To obtain a fire receiver which is less likely to cause a delay in notification based on an up-to-date event at a notification terminal.SOLUTION: A fire receiver comprises: a signal transmission unit that transmits a signal-transfer signal to a notification terminal which provides notification by a display and / or a voice when the signal transmission unit detects a predetermined event, wherein: when the transmission of the first signal-transfer signal ends, if there are one or more events detected after the transmission of the first signal-transfer signal began, the signal transmission unit transmits a signal-transfer signal corresponding to a last detected event among one or more events to the notification terminal; and the signal transmission unit does not transmit a signal-transfer signal corresponding to at least part of the other events to the notification terminal.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a fire alarm receiver connected to an alarm terminal. [Background technology]

[0002] Conventionally, there have been fire receivers that receive fire signals or equipment activation signals, etc., directly or via a repeater from terminal devices such as fire detectors and notify relevant parties in a fire prevention facility of the occurrence of a fire or the status of equipment, etc. Patent Document 1, for example, proposes a fire alarm system equipped with such a fire receiver, including multiple terminal devices, each assigned an address, a fire receiver that transmits signals to the multiple terminal devices based on the addresses, and a fire indicator that displays based on the signals transmitted from the fire receiver. The fire receiver in Patent Document 1 includes a display transmitter that transmits at least the address data of the terminal device to the fire indicator when it receives a fire or malfunction signal from the terminal device, and the fire indicator includes a display switching means for displaying either the address data or the district name data corresponding to the address data, or both. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-79012 Summary of the Invention [Problem to be solved by the invention]

[0004] In a fire alarm system such as that shown in Patent Document 1, when a fire receiver detects multiple fire or fault event signals within a short period of time, display data for multiple fire indicators corresponding to the multiple events is transmitted to the fire indicators. The fire indicators perform display processing in the order in which the display data is received, but subsequent display data received during the execution of the display processing may accumulate, causing a delay in display based on the subsequent display data, and it may occur that the fire indicator displays the event several tens of seconds after the event is detected.

[0005] The present invention has been made in view of the above-mentioned problems, and aims to provide a fire alarm receiver that is less likely to cause a delay in an alarm based on the latest event at an alarm terminal. [Means for solving the problem]

[0006] The fire receiver of the present invention is equipped with a signal transmission unit that, when it detects a specified event, transmits an alarm signal to an alarm terminal that issues an alarm by either display or sound, or both, and when the transmission of the first alarm signal is completed, if there are one or more events that have been detected after the transmission of the first alarm signal began, the signal transmission unit transmits the alarm signal corresponding to the last detected event of the one or more events to the alarm terminal, and does not transmit the alarm signals corresponding to at least some of the other events to the alarm terminal. [Effects of the Invention]

[0007] According to the fire receiver of the present invention, it is possible to reduce the occurrence of delays in notifications based on the latest events at the notification terminal. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating the configuration of a fire alarm system 100 including a fire receiver 1 according to a first embodiment. [Figure 2] 1 is a first example of a time chart showing the operations of the fire control panel 1 and the notification terminal 6 according to the first embodiment. [Figure 3] 10 is a second example of a time chart showing the operations of the fire control panel 1 and the notification terminal 6 according to the first embodiment. [Figure 4] 10 is a third example of a time chart showing the operations of the fire control panel 1 and the notification terminal 6 according to the first embodiment. [Figure 5] 10 is a first example of a time chart showing the operation of the fire control panel 1 and the notification terminal 6 according to the second embodiment. [Figure 6] 10 is a second example of a time chart showing the operations of the fire control panel 1 and the notification terminal 6 according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of a fire alarm receiver according to the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiment and illustrated aspects, and various modifications are possible without departing from the spirit of the present invention. Furthermore, the present invention includes all possible combinations of the configurations shown in the following embodiment. Furthermore, in each drawing, components with the same reference numerals are the same or equivalent, and this is common throughout the entire specification.

[0010] Embodiment 1 (Fire alarm system configuration) FIG. 1 is a diagram illustrating the configuration of a fire alarm system 100 including a fire receiver 1 according to a first embodiment. The fire alarm system 100 includes a fire receiver 1, a fire detector 3 and a transmitter 4 connected to the fire receiver 1 via a detector line 2, and an alarm terminal 6 connected to the fire receiver 1 via a signal line 5. The number of detector lines 2 and signal lines 5 shown in the figure is merely an example and is not limited to the number shown. The fire receiver 1 may also be connected to a fire door, a smoke exhaust device, or other smoke control equipment, or a sound device such as a bell or a speaker, via a transmission line. In this embodiment, an example is described in which the fire receiver 1 is a P-type fire receiver that uses a voltage change, a signal common to each fire detector 3, as an alarm signal. However, the fire receiver 1 may also be an R-type fire receiver.

[0011] The fire detector 3 is, for example, a heat detector, a smoke detector, or a flame detector. The fire detector 3 detects physical quantities such as the concentration or temperature of smoke generated by a fire, and when the physical quantity exceeds a fire threshold, it changes the open / close state of a contact connected to the detector circuit 2, thereby changing the voltage of the detector circuit 2. The fire receiver 1 monitors the voltage of the detector circuit 2, and acquires (receives) the change in voltage caused by the fire detector 3 changing the open / close state of the contact as a fire alarm signal.

[0012] The transmitter 4 is a device that transmits a fire signal to the fire receiver 1 when a person who discovers a fire presses a push button. When the push button is pressed, the voltage of the detector line 2 connected to the fire receiver 1 changes. The fire receiver 1 monitors the voltage of the detector line 2, and acquires (receives) the change in voltage that occurs when the push button is pressed as a fire signal.

[0013] The notification terminal 6 is a terminal device that issues a notification based on the notification signal upon receiving the notification signal from the fire receiving device 1. The notification terminal 6 is, for example, either or both of a display device that issues a visual notification and an audio output device such as a speaker that issues an audio notification. In this embodiment, a specific example of operation will be described assuming that the notification terminal 6 is a display device.

[0014] (Configuration of fire receiver) The fire receiving device 1 includes a control unit 10, a memory unit 11, an operation unit 12, a display unit 13, an audio output unit 14, a signal transmission unit 15, a signal reception unit 16, and a transmission circuit 17. The control unit 10 controls the display unit 13, the audio output unit 14, the signal transmission unit 15, the signal reception unit 16, and the transmission circuit 17.

[0015] When an alarm signal from a fire detector 3 that has detected a fire is input via the transmission circuit 17, the control unit 10 issues a fire detection alert using either or both of the display unit 13 and the audio output unit 14. When the fire detection alert is issued, the manager of the fire receiver 1, etc., goes to the location of the fire in response to the fire alarm and visually confirms whether or not a fire has occurred. Once the manager, etc., confirms that a fire has occurred, presses the push button on the transmitter 4, and upon receiving the fire signal from the transmitter 4, the fire receiver 1 concludes that a fire has occurred. In addition, a fire may be concluded when alarm signals are sent from multiple fire detectors 3 to one detector line 2.

[0016] Furthermore, when the control unit 10 detects a predetermined event, it causes the signal transmission unit 15 to transmit a notification signal to the notification terminal 6. The predetermined event may be an alarm signal from the fire detector 3, an abnormality signal indicating an abnormality from a terminal device such as the fire detector 3, or a fire signal from the transmitter 4. The notification signal includes information for causing the notification terminal 6 to notify information related to the event. If the event is an alarm signal, the notification signal includes the name of the area where the detector line 2 where the fire was detected is installed (e.g., "1st Floor Area 1"), the address and type of the fire detector 3 that detected the fire (e.g., "Address 1 Photoelectric Analog Detector"), the location where the fire detector 3 is installed (e.g., "1st Conference Room"), and the content of the event (e.g., "Alert"). If the event is an abnormality signal, the content of the event in the notification signal may be, for example, "failure." If the notification terminal 6 is a display device, data for text display is transmitted as the notification signal. If the notification terminal 6 is an audio output device, data for audio output is transmitted as the notification signal.

[0017] The control unit 10 is configured by a dedicated control circuit, a CPU (Central Processing Unit) that executes programs stored in memory, or a combination of these. When the control unit 10 is a CPU, each function executed by the control unit 10 is realized by software, firmware, or a combination of software and firmware.

[0018] The memory unit 11 stores data used by the control unit 10 to control each unit. The memory unit 11 stores a table (not shown) that associates each of the sensor lines 2 with information indicating the installation location of each sensor line 2 and the fire detectors 3 connected to each sensor line 2. The memory unit 11 also stores information on each of the fire detectors 3, such as its address, type, and installation location, in association with each other. The memory unit 11 also stores information on each of the transmitters 4 and other terminal devices, such as its address, type, and installation location, in association with each other. The memory unit 11 is an internal memory, an external memory medium such as a memory card, or a combination thereof. For example, the memory unit 11 is a non-volatile or volatile semiconductor memory, such as RAM, ROM, flash memory, EPROM, or EEPROM.

[0019] The operation unit 12 includes hardware buttons or switches provided on the housing of the fire receiving device 1. The operation unit 12 may include a touch panel provided over the display of the display unit 13. The operation unit 12 accepts operations from the user and sends a signal corresponding to the operation to the control unit 10.

[0020] The display unit 13 displays the detector line 2 or fire detector 3 from which the alarm signal was generated, displays that a transmission signal has been received, and displays a message to that effect if a communication abnormality is detected. The display unit 13 includes light-emitting elements such as LEDs (Light Emitting Diodes) provided on the housing of the fire receiving device 1, and a nameplate associated with the light-emitting elements. The display unit 13 may include a liquid crystal display or an organic EL display.

[0021] The audio output unit 14 notifies the occurrence of a fire by audio when an alarm signal is received from the fire detector 3 and when a fire is confirmed. In addition, when a communication abnormality is detected, the audio output unit 14 outputs an audio message to that effect. The audio output unit 14 includes either a buzzer or a speaker, or both.

[0022] The signal transmitting unit 15 is a communication circuit that transmits a transfer signal to the annunciation terminal 6 via the signal line 5. The signal transmitting unit 15 is controlled by the control unit 10 to send out the transfer signal to the signal line 5.

[0023] The signal receiving unit 16 is a communication circuit that receives a signal transmitted from the notification terminal 6 via the signal line 5. The signal receiving unit 16 inputs the received signal to the control unit .

[0024] The transmission circuit 17 is a circuit to which the sensor line 2, which is connected to the fire detector 3 and the transmitter 4, is connected. The transmission circuit 17 receives the fire signal from the sensor line 2 and the fire signal from the transmitter 4, and sends the received signal to the control unit 10. In this embodiment, a transmission circuit 17 is provided for each sensor line 2.

[0025] (Operation of fire alarm receiver and alarm terminal) When the fire receiver 1 detects a predetermined event such as an alarm signal, an abnormality signal, or a fire signal, the fire receiver 1 notifies information corresponding to the detected event using either or both of the display unit 13 and the audio output unit 14. For example, when an alarm signal from the fire detector 3 is detected, the fire receiver 1 displays text such as "1st floor, 1st district, address 2, photoelectric analog detector malfunction, 1st conference room" on the display unit 13.

[0026] In addition to issuing an alert from its own device, the fire receiver 1 transmits an alert transfer signal to cause the alert terminal 6 to issue an alert. The alert from the fire receiver 1 and the alert from the alert terminal 6 may be expressed in the same way or in different ways. For example, if the amount of information that can be displayed on the alert terminal 6 is small compared to the amount of information that can be displayed on the display unit 13 of the fire receiver 1, the fire receiver 1 transmits an alert transfer signal so that the alert terminal 6 can issue an alert in an expression that omits or simplifies some of the content of the alert from the fire receiver 1. The alert terminal 6 that receives the alert transfer signals processes the signals in the order in which they were received and issues the alert.

[0027] Fig. 2 is a time chart example 1 showing the operation of the fire receiving device 1 and the alarm terminal 6 according to embodiment 1. In Fig. 3 and the following figures and their explanations, the alarm signal corresponding to event E1 will be described as "alarm signal (E1)", and the alarm process executed upon receiving the alarm signal corresponding to event E1 will be described as "alarm (E1)".

[0028] When the fire receiver 1 detects event E1, it transmits a corresponding report signal (E1) to the notification terminal 6. Although not shown, when the fire receiver 1 detects event E1, it also makes a report corresponding to the event E1 on its own device. When the notification terminal 6 receives the report signal (E1), it makes a report (E1) based on the report signal (E1). After the fire receiver 1 has finished transmitting the report signal (E1), if it detects another subsequent event E2, it transmits a report signal (E2) to the notification terminal 6. When the notification terminal 6 receives the report signal (E2), it makes a report (E2) based on the report signal (E2). The notification terminal 6 continues to report one report content for a predetermined time. Alternatively, the notification terminal 6 continues to report one report content until the predetermined time has elapsed or until it receives a subsequent report signal, whichever comes first.

[0029] In this way, if no other event is detected when the transmission of the report signal (E1) is completed, the fire receiving device 1 will not transmit the report signal until it detects the next event, and will transmit the report signal (E2) when it detects a new event E2. The reporting terminal 6 will report based on the report signal in the order in which it received the report signals.

[0030] Fig. 3 is a time chart example 2 showing the operation of the fire receiving device 1 and the alarm terminal 6 according to embodiment 1. Fig. 3 illustrates an example of operation when another event E2 is detected while the fire receiving device 1 is transmitting an alarm transfer signal (E1).

[0031] When the fire receiver 1 detects event E1, it transmits a corresponding report transfer signal (E1) to the notification terminal 6. When the notification terminal 6 receives the report transfer signal (E1), it issues a report (E1) based on the report transfer signal (E1). When the transmission of the report transfer signal (E1) is completed, the fire receiver 1 checks whether or not another event has been detected at that time. In this case, since another event E2 is detected while the report transfer signal (E1) is being transmitted, the fire receiver 1 transmits a report transfer signal (E2) to the notification terminal 6 after transmitting the report transfer signal (E1). When the notification terminal 6 receives the report transfer signal (E2), it issues a report (E2) based on the report transfer signal (E2). In the example of FIG. 3, the notification terminal 6 receives the report transfer signal (E2) while continuing to issue a report (E1), and therefore switches the report content to the subsequent report (E2).

[0032] 4 is a time chart example 3 showing the operation of the fire receiving device 1 and the alarm terminal 6 according to embodiment 1. An operation example will be described in which, after the fire receiving device 1 starts transmitting the alarm signal (E1), a plurality of other events E2 to E4 are detected.

[0033] When the fire receiver 1 detects event E1, it transmits a corresponding report signal (E1) to the notification terminal 6. When the notification terminal 6 receives the report signal (E1), it issues a report (E1) based on the report signal (E1). When the transmission of the report signal (E1) ends, the fire receiver 1 checks whether or not other events have been detected at that time. Here, other events E2, E3, and E4 are detected after the start of transmission of the report signal (E1). After transmitting the report signal (E1), the fire receiver 1 transmits a report signal (E4) for event E4, which is the last event detected, to the notification terminal 6, but does not transmit report signals for the other events E2 and E3. When the notification terminal 6 receives the report signal (E4), it issues a report (E4) based on the report signal (E4). In the example of FIG. 4, the notification terminal 6 receives a transfer signal (E4) while continuing to issue a notification (E1), and therefore switches the notification content to the subsequent notification (E4).

[0034] As described above, the fire receiving device 1 of this embodiment includes a signal transmitting unit 15 that transmits an alarm signal to the alarm terminal 6 that notifies by display and / or sound. When the transmission of the first alarm signal ends and there are one or more events that have been detected after the start of transmission of the first alarm signal, the signal transmitting unit 15 transmits an alarm signal corresponding to the last event detected among the one or more events to the alarm terminal 6, and does not transmit alarm signals corresponding to the other events to the alarm terminal 6.

[0035] Therefore, it is possible to prevent delays in the notification based on the latest event at the notification terminal 6. For example, if the notification terminal 6 processes the notification signals in the order in which they are received, and the notification terminal 6 attempts to execute notifications based on all notification signals, subsequent notification signals received during the notification process will be accumulated, resulting in a delay in the notification based on the subsequent notification signals. This may result in the notification being untimely, as the notification at the notification terminal 6 may be several tens of seconds after the event is detected. However, according to this embodiment, such a problem can be avoided, and the notification based on the latest event can be executed quickly at the notification terminal 6. Furthermore, in the fire alarm system 100, the latest notification content of the fire receiver 1 and the notification terminal 6 can be made to match.

[0036] Embodiment 2 In this embodiment, a fire alarm system 100 is described that includes a fire receiver 1 that receives a response signal to a notification signal from an alarm terminal 6 and then transmits a subsequent notification signal. In this embodiment, differences from embodiment 1 are mainly described. Note that the system configuration of the fire alarm system 100 of this embodiment is assumed to be the same as that shown in FIG. 1.

[0037] When the notification terminal 6 of this embodiment has finished receiving the notification signal, it transmits a response signal to the fire receiver 1 and issues a notification in accordance with the notification signal. When the signal receiving unit 16 (see FIG. 1) of the fire receiver 1 receives the response signal, it inputs the received response signal to the control unit 10. The control unit 10 determines whether or not another event has been detected between the transmission of the notification signal and the reception of the corresponding response signal, and transmits to the notification terminal 6 a notification signal corresponding to the last detected event. A specific example will be described below.

[0038] Fig. 5 is a time chart example 1 showing the operations of the fire receiver 1 and the notification terminal 6 according to embodiment 2. Note that in Figs. 5 and 6, the processing of the notification terminal 6 is illustrated as being divided into reception processing and notification processing.

[0039] When the fire receiver 1 detects event E1, it transmits a corresponding report signal (E1) to the notification terminal 6. When the notification terminal 6 completes the reception process of the report signal (E1), it transmits a response signal (E1) to the fire receiver 1 and issues a report (E1). When the fire receiver 1 detects a subsequent event E2 after receiving the response signal (E1), it transmits a report signal (E2) to the notification terminal 6. When the notification terminal 6 completes the reception process of the report signal (E2), it transmits a response signal (E2) to the fire receiver 1 and issues a report (E2). The notification terminal 6 continues to report one report content for a predetermined time. Alternatively, the notification terminal 6 continues to report one report content until the predetermined time has elapsed or until it receives a subsequent report signal, whichever comes first.

[0040] 6 is a time chart example 2 showing the operation of the fire receiver 1 and the alarm terminal 6 according to embodiment 2. An operation example will be described in which a plurality of other events E2 to E4 are detected after the fire receiver 1 starts transmitting the alarm signal (E1).

[0041] When the fire receiver 1 detects event E1, it transmits a corresponding report signal (E1) to the alarm terminal 6. When the alarm terminal 6 completes the reception process of the report signal (E1), it transmits a response signal (E1) to the fire receiver 1 and issues a report (E1). When the fire receiver 1 receives the response signal (E1), it checks whether any other events have been detected at that time. Here, events E2, E3, and E4 are detected after the report signal (E1) is transmitted and before the response signal (E1) is received. After transmitting the report signal (E1), the fire receiver 1 transmits a report signal (E4) for E4, the last detected event, to the alarm terminal 6, but does not transmit report signals for the other events E2 and E3. When the alarm terminal 6 completes the reception process of the report signal (E4), it transmits a response signal (E4) to the fire receiver 1 and issues a report (E4).

[0042] As described above, the fire receiving device 1 of this embodiment includes a signal transmitting unit 15 that transmits an alarm signal to the alarm terminal 6 that notifies by display and / or sound, and a signal receiving unit 16 that receives a response signal to the alarm signal transmitted from the alarm terminal 6. The signal transmitting unit 15 transmits an alarm signal, receives a response signal corresponding to the alarm signal, and then transmits a subsequent alarm signal. When the signal receiving unit 16 receives a response signal to the transmitted first alarm signal, if one or more events have been detected after the start of transmission of the first alarm signal, the signal transmitting unit 15 transmits an alarm signal corresponding to the last detected event of the one or more events to the alarm terminal 6, but does not transmit alarm signals corresponding to the other events to the alarm terminal 6.

[0043] Therefore, according to this embodiment, as in embodiment 1, it is possible to reduce the occurrence of delays in notifications based on the latest event at the alarm terminal 6, and it is also possible to match the latest notification content of the fire receiver 1 and the alarm terminal 6 in the fire alarm system 100.

[0044] Embodiment 3 In the first and second embodiments, it has been explained that a report signal corresponding to the last detected event is transmitted to the annunciation terminal 6, and that report signals corresponding to all other events are not transmitted to the annunciation terminal 6. In the present embodiment, an example will be described in which a report signal is transmitted for some of the events other than the last detected event, and a report signal is not transmitted for the rest.

[0045] In this embodiment, a priority is assigned to each event detected by the fire receiving device 1, and each of the multiple events is associated with a priority and stored in advance in the storage unit 11. Here, there are two types of priorities: low priority and high priority, and a report signal for a high priority event is transmitted to the notification terminal 6. When the control unit 10 detects an event, it refers to the priority of the event stored in the storage unit 11, and if the event is set to high priority, it transmits a report signal to the notification terminal 6, and if the event is set to low priority, it does not transmit a report signal to the notification terminal 6. When multiple report signals are to be transmitted, they are transmitted in the order in which the fire receiving device 1 detected the corresponding events.

[0046] An example of operation when this embodiment is combined with the first embodiment will be described with reference to FIG. 4. Of the events E1 to E4 shown in FIG. 4, only event E3 is set to high priority. When the transmission of the report signal (E1) is completed, the fire receiving device 1 checks whether other events have been detected at that time and the priorities of the detected events. Here, other events E2, E3, and E4 have been detected after the start of transmission of the report signal (E1), and event E3 has high priority. Unlike FIG. 4, the fire receiving device 1 of this embodiment transmits a report signal (E3) corresponding to event E3, and upon receiving the report signal (E3), the alarm terminal 6 issues a report (E3). After transmitting the report signal (E3), the fire receiving device 1 transmits to the alarm terminal 6 a report signal (E4) for event E4, which was the last event detected after the transmission of the report signal (E1), but does not transmit a report signal for event E2. When the reporting terminal 6 receives the report signal (E4), it makes a report (E4) based on the report signal (E4).

[0047] An example of operation when this embodiment is combined with embodiment 2 will be described with reference to FIG. 6. Of events E1 to E4 shown in FIG. 6, only event E3 is set to high priority. When the fire receiving device 1 receives a response signal (E1), it checks whether other events have been detected at that time and the priorities of the detected events. Here, events E2, E3, and E4 are detected after the transmission of the report signal (E1) and before the reception of the response signal (E1), and event E3 has high priority. Unlike in FIG. 6, the fire receiving device 1 transmits a report signal (E3) corresponding to event E3, and the alarm terminal 6 transmits the response signal (E3) to the fire receiving device 1 and also issues an alarm (E3). The fire receiving device 1 transmits a report signal (E4) for E4, the event last detected after the transmission of the report signal (E3), to the alarm terminal 6, but does not transmit a report signal for event E2. When the notification terminal 6 receives the notification signal (E4), it transmits a response signal (E4) to the fire control panel 1 and issues a notification (E4).

[0048] In this way, when the transmission of the first notification signal is completed or a response signal to the first notification signal is received, the fire receiving device 1 of this embodiment transmits notification signals for high-priority events detected after the start of transmission of the first notification signal and the most recently detected event to the notification terminal 6, but does not transmit notification signals for other events. Therefore, according to this embodiment, as in the first and second embodiments, it is possible to reduce delays in notification based on the most recent event in the notification terminal 6, and it is also possible to match the latest notification content between the fire receiving device 1 and the notification terminal 6. Furthermore, because notification signals are transmitted for some of the events other than the most recently detected event, priority information can be notified by the notification terminal 6.

[0049] (Variation) In the first and second embodiments, it has been explained that the predetermined event is an alarm signal from the above-mentioned fire detector 3, an abnormality signal indicating an abnormality from a terminal device such as the fire detector 3, or a fire signal from the transmitter 4. However, the predetermined event may also be an internal event of the fire receiver 1 based on an external alarm signal or the like, a state change of the fire receiver 1, or an internal event based on an operation on the operation unit 12.

[0050] For example, when the control unit 10 of the fire receiver 1 receives an alarm signal, an abnormality signal, a fire signal, etc., it generates a display switching event that triggers a display change on the display unit 13, and when it detects the display switching event, the signal transmitting unit 15 transmits a report signal.

[0051] Furthermore, for example, when a display switching operation of the display unit 13 is performed on the operation unit 12, the operation unit 12 generates a display switching event, and when the control unit 10 detects the display switching event, the operation unit 12 switches the display on the display unit 13 and transmits a notification signal to the notification terminal 6. At this time, as described in the first and second embodiments, if one or more other events have been detected when the transmission of the first notification signal is completed or when a response signal thereto is received, only the notification signal of the last detected event is transmitted to the notification terminal 6. Also, as described in the third embodiment, in addition to the notification signal of the last detected event, notification signals of events with higher priority are transmitted to the notification terminal 6. As a specific example, a fire receiver 1 that sequentially switches and displays information received from a terminal device such as a fire detector 3 in a specific area of ​​the display unit 13 will be described. The specific area of ​​the display unit 13 switches and displays the information in the order of reception, and the display switching stops when the last received information is displayed. The operation unit 12 accepts an operation to retroactively display the display in the specific area of ​​the display unit 13, and the user performs continuous operations on the operation unit 12 until the desired information is displayed. When successive display switching events occur due to such successive operations, the fire receiver 1 performs the transmission process of the notification signal as described in the first to third embodiments. As a result, the notification terminal 6 displays a display based on the latest display switching event, and the latest notification content of the fire receiver 1 and the notification terminal 6 can be matched.

[0052] Furthermore, if the report content of the report signal to be transmitted is the same as that of the report signal transmitted immediately before, the fire control device 1 does not need to transmit a new report signal. For example, when the transmission of the report signal (E1) is completed (Embodiment 1) or when a response signal to the report signal is received (Embodiment 2), if the last event detected was event E1, the fire control device 1 does not transmit the report signal (E1). This makes it possible to prevent communication from the fire control device 1 to the alarm terminal 6 that does not contribute to changing the report. [Explanation of symbols]

[0053] 1 Fire receiver, 2 Detector line, 3 Fire detector, 4 Transmitter, 5 Signal line, 6 Alarm terminal, 10 Control unit, 11 Memory unit, 12 Operation unit, 13 Display unit, 14 Audio output unit, 15 Signal transmitting unit, 16 Signal receiving unit, 17 Transmission circuit, 100 Fire alarm system.

Claims

1. a signal transmitting unit that, when detecting a predetermined event, transmits a notification signal to a notification terminal that notifies the user by display and / or sound; When the transmission of the first report signal ends, if there are one or more events detected after the start of transmission of the first report signal, the signal transmitter transmits the report signal corresponding to the event detected last among the one or more events to the annunciation terminal, and does not transmit the report signals corresponding to at least some of the other events to the annunciation terminal. Fire receiver.

2. a signal transmitting unit that, when detecting a predetermined event, transmits a notification signal to a notification terminal that notifies the user by display and / or sound; a signal receiving unit that receives a response signal in response to the notification signal transmitted from the notification terminal, The signal transmission unit After transmitting the report signal and receiving the response signal corresponding to the report signal, the subsequent report signal is transmitted, When the signal receiving unit receives the response signal in response to the first report signal transmitted by the signal transmitting unit, if there are one or more events detected after starting transmission of the first report signal, the signal receiving unit transmits the report signal corresponding to the last detected event of the one or more events to the annunciation terminal, and does not transmit the report signals corresponding to at least some of the other events to the annunciation terminal. Fire receiver.

3. The signal transmission unit transmits the report signal corresponding to an event with a high priority among the other events to the annunciation terminal, and does not transmit the report signal corresponding to the remaining events to the annunciation terminal.

3. The fire receiver according to claim 1 or 2.

4. A display unit; an operation unit that accepts a display switching operation on the display unit, The predetermined event is a display switching event that occurs when the switching operation is accepted.

3. The fire receiver according to claim 1 or 2.

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