Display device of fire alarm facility and display system using the same

Abstract

To provide a display device of a fire alarm facility which can record an operation of an operator and a display system using the same.SOLUTION: A display device of a fire alarm facility displays, when state information of each terminal device is received from the fire alarm facility comprising a fire receiver, and a plurality of terminal devices connected with the fire receiver via a signal line to detect occurrence of an event, the state information, and comprises a storage unit which records operation content of an operator who operates the display device as a moving image.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a display device for a fire alarm system, and more particularly to a display device constituting a so-called integrated control panel in a fire alarm system, and a display system using the same. [Background technology]

[0002] Conventionally, a display device for a fire alarm system that constitutes a central control panel is installed in a building's disaster prevention center, etc. The display device for the fire alarm system is connected to a fire receiver to which multiple terminal devices, such as smoke detectors, are connected, and is configured to receive status information from each terminal device from the fire receiver. The display device for the fire alarm system in Patent Document 1 includes a display unit that displays various images and information, and a memory unit that stores image data of a floor plan on which symbols of multiple terminal devices are arranged. The display device for the fire alarm system in Patent Document 1 normally displays the words "Normal monitoring" on the display unit, and when an event, such as a change in the status of a smoke detector (alarm), is confirmed based on status information from the fire receiver, the display unit switches the screen to an event occurrence screen. The event occurrence screen displays a floor plan on which symbols of each terminal device are arranged, and the symbol of a terminal device on which an event has occurred changes color and flashes to distinguish it from other terminal devices. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-4239 Summary of the Invention [Problem to be solved by the invention]

[0004] One problem with fire alarm system display devices is that they do not record operator operations.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to provide a display device for a fire alarm system that can record the operations of an operator, and a display system using the same. [Means for solving the problem]

[0006] The display device for a fire alarm system according to the present invention receives status information from a fire alarm system having a fire receiver and a plurality of terminal devices connected to the fire receiver via signal lines, and when it detects the occurrence of an event, displays the status information.The display device for a fire alarm system is equipped with a memory unit that records the operations of the operator operating the display device as a video.

[0007] The display system of the present invention comprises a display device of the above-mentioned fire alarm equipment and an external device connected to the display device via a network, wherein the display device comprises a transmitting unit that transmits video to the external device via the network, and the external device comprises a receiving unit that receives the video transmitted from the display device and a memory unit that stores the video received by the receiving unit so that it can be read out from a user terminal. [Effects of the Invention]

[0008] The display device for a fire alarm system and the display system using the same of the present invention can record the operations of an operator. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a configuration diagram showing an entire display system using a display device of a fire alarm system according to a first embodiment. [Figure 2] 3 is a diagram showing an example of image data stored in a storage unit of the display device of the fire alarm system according to the first embodiment. FIG. [Figure 3] 3 is an explanatory diagram of a screen displayed on a display unit of the display device of the fire alarm system according to the first embodiment. FIG. [Figure 4] FIG. 4 is an enlarged view of the screen in FIG. 3. [Figure 5]3 is a diagram showing an example of various lists stored in a storage unit of the display device of the fire alarm system according to the first embodiment. FIG. [Figure 6] FIG. 10 is a diagram showing an example of how a monitoring map is displayed on a user terminal of the display system according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Embodiment 1 A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing the overall display system using a display device of a fire alarm system according to the first embodiment. In FIG. 1, 1 denotes a display device. 2 denotes a fire receiver to which the display device 1 is connected. A plurality of terminal devices are connected to the fire receiver 2 via signal lines. Here, the terminal devices include, for example, fire detectors (devices that automatically detect fires) such as smoke detector 20 and heat detector 21, transmitter 22 (a device operated by the fire discoverer), district sounding devices (devices that issue fire alarms in various parts of a building) using district bell devices 23, smoke control and exhaust devices (devices that control and exhaust generated smoke, generally referring to devices controlled in response to a fire), and gas leak detector 25 (a device that automatically detects leaked gas). These components essentially constitute a fire alarm system. The display device 1 receives status information of the terminal devices from the fire alarm system, which includes the fire receiver 2 and a plurality of terminal devices connected to the fire receiver 2 via signal lines, and displays the status information.

[0011] Reference numeral 3 denotes a user terminal that can be connected to the display device 1 via the network N. The user terminal 3 is, for example, a smartphone or a tablet terminal. Reference numeral 4 denotes a commercial power source, 5 denotes a breaker, and 6 denotes a backup power supply device that supplies power from the commercial power source 4 to the display device 1 via the breaker 5.

[0012] Reference numeral 11 denotes a control unit that controls the overall operation of the display device 1, and 12 denotes an interface unit that receives, by signal transmission, information transmitted from the fire receiver 2. This interface unit 12 may be capable of transmitting signals to a panel other than the fire receiver 2 connected to the display device 1, and may be capable of transmitting and receiving information to and from emergency broadcast equipment, building management equipment, etc.

[0013] Reference numeral 13 denotes an image output unit that outputs an image to be displayed by the control unit 11. Reference numeral 14 denotes a display unit connected to the image output unit 13 and displays an image. The display unit 14 is a CRT, LCD, plasma display, or the like. Reference numeral 15 denotes an operation input unit into which an operator's operations are input. In this example, a mouse 16 is connected to the operation input unit 15, and the operator's operations are input via the mouse 16. The operation input unit 15 displays a pointer on the display unit 14, moves the pointer based on the movement of the mouse 16, and identifies inputs made by click operations and notifies the control unit 11. Note that the operation input unit 15 may also be a touch-panel input pad located in front of the display unit 14. Reference numeral 17 denotes a memory unit (hard disk drive) that stores data programming the operation of the control unit 11, image data to be displayed, various lists, and the like. Reference numeral 18 denotes a transmission unit that transmits image data, etc. to an external device 19 (described later) via a network N under the control of the control unit 11.

[0014] The external device 19 is a server device such as a cloud server, has a communication function, and is communicatively connected to the display device 1 via a network N. The network N is, for example, a wide area network such as the Internet. The external device 19 includes a receiving unit 19a that receives image data and the like transmitted from the display device 1, and a storage unit 19b that stores the image data and the like received by the receiving unit 19a so that the image data and the like can be read out by the user terminal 3.

[0015] FIG. 2 is a diagram showing an example of image data stored in a memory unit of the display device of the fire alarm system according to the first embodiment. The memory unit 17 stores a monitoring map 17a showing the positions and statuses of multiple terminal devices in a building to be monitored. The monitoring map 17a is a plan view, cross-sectional view, system diagram, or the like of each floor of the building. More specifically, the monitoring map 17a is a diagram in which terminal devices are represented by symbols on a drawing such as a plan view, cross-sectional view, or system diagram. The positions of the symbols indicate the positions of the terminal devices, and the display of the symbols (black display, red display, etc.) indicates the status of the terminal devices. FIG. 2 shows an example of a monitoring map 17a that is a plan view. An enlarged portion of FIG. 2 shows an example of a symbol 20a of a smoke detector 20.

[0016] Fig. 3 is an explanatory diagram of a screen displayed on the display unit of the display device of the fire alarm system according to embodiment 1. Fig. 4 is an enlarged view of the screen of Fig. 3. The screen displayed on the display unit 14 has a graphic area 30, a time display area 31, an alarm list area 32, a floor selection area 33, and a menu bar 34. Of course, the number and types of these areas are not limited to these.

[0017] The graphic area 30 displays a normal screen, an event occurrence screen, etc. The normal screen is a screen that displays a message such as "Normal monitoring in progress" during normal operation, allowing users to confirm that the display device 1 has started up and is in monitoring mode. This display changes position periodically to prevent burn-in of the screen.

[0018] The event occurrence screen is a screen displayed when an event is detected upon receiving status information from a fire alarm system, and is displayed based on the updated surveillance map 17a that reflects the status information. FIG. 3 shows an example of an event occurrence screen 35 displayed in the graphic area 30. The event occurrence screen 35 is a screen for quickly grasping the location and situation of an alarm. Specifically, the event occurrence screen 35 is a screen that displays symbols by flashing or changing color when a status change occurs, such as an alarm being triggered, an operation being performed, or an abnormality, on the surveillance map 17a, which represents terminal devices with symbols on drawings such as a building floor plan, cross-section, and system diagram. The event occurrence screen 35 has a floor plan screen and screens for cross-section, system diagram, etc.

[0019] The floor plan screen displays terminal devices with symbols on a building floor plan. The symbols flash or change color when an alarm is triggered, activated, or an abnormality occurs, allowing users to quickly grasp the location and status of an alarm. The cross-sectional and system diagram screens are used instead of floor plans when the location is difficult to grasp on a floor plan, such as when displaying the vertical section of a fire alarm system or the disaster prevention power of smoke control and fire extinguishing equipment, or when displaying equipment that is not related to the location of the alarm. In the cross-sectional and system diagram screens, terminal devices are displayed using symbols, just like in the floor plan, and the symbols flash or change color when the status changes. The event occurrence screen 35 is generated under the control of the control unit 11 based on the monitoring map 17a stored in the memory unit 17 and status information from the fire receiver 2. In the following, the floor plan screen and the cross-sectional and system diagram screens are not distinguished from each other, and the event occurrence screen 35 is described as displaying image data based on the monitoring map 17a.

[0020] The event occurrence screen 35 displays a partial area of ​​the monitoring map 17a of the entire floor stored in the memory unit 17. The displayed partial area is an area having a symbol where a status change has occurred. In other words, the event occurrence screen 35 is a screen showing the part of the monitoring map 17a where the event has occurred. If an event such as an alarm occurs while the normal screen is displayed, an area of ​​the monitoring map 17a of the corresponding floor having a symbol where a status change has occurred is automatically displayed in the graphic area 30. FIG. 3 shows a state in which the monitoring map of the area where the fire occurred is displayed out of the monitoring map 17a of the entire fifth floor where the fire occurred. Hereinafter, the monitoring map of the range displayed on the event occurrence screen 35 is referred to as the partial monitoring map 17b, and is distinguished from the monitoring map 17a of the entire floor including the part not displayed on the event occurrence screen 35.

[0021] Vertical and horizontal scroll bars 30a and 30b are provided in the graphic area 30. Portions of the graphic area 30 that are not displayed and that extend beyond the graphic area 30 can be displayed in the graphic area 30 by operating the scroll bars 30a and 30b.

[0022] The time display area 31 displays the current date and time. The alarm list area 32 displays the most recent events, for example, the five most recent events, among the events occurring at that time. The floor selection area 33 is an area where selection buttons 33a for each floor of the building are displayed. When a selection button 33a is selected by clicking the mouse 16, a partial monitoring map 17b for the floor corresponding to the selection button 33a is displayed in the graphic area 30. The menu bar 34 is an area where various switches are displayed.

[0023] [Operation description] Next, the operation will be explained. Under normal circumstances, the fire receiver 2 grasps the status of each terminal device. During this normal period, a normal screen is displayed on the display unit 14. Furthermore, in the event of a fire or other such event, the fire receiver 2 monitors and controls the operation of necessary terminal devices, and transmits a signal indicating the status of the terminal devices (alarm, operation, abnormality, recovery, etc.) to the display device 1. When this signal is input to the control unit 11 of the display device 1 via the interface unit 12, the control unit 11 detects that an event has occurred.

[0024] On the other hand, if the power supplied to the display device 1 is cut off due to a power outage, the display device 1 maintains its functionality by receiving power from the built-in backup power supply 6 and turns on the power outage light (LED) under the control of the control unit 11. If the power is restored within the backup power supply 6's power outage guarantee time (e.g., approximately 5 minutes) or if power supply is resumed from an emergency power source, the above operations are also restored. If power is not supplied within the power outage guarantee time, the control unit 11 automatically performs shutdown processing to prevent damage to the device and data and stops functioning before the battery capacity of the backup power supply 6 reaches its limit. Furthermore, if the backup power supply 6's voltage drops, it outputs a signal to the control unit 11 notifying the control unit 11 of the voltage drop. When the control unit 11 detects a voltage drop, it terminates the operation of the display device 1 and issues a stop output to the backup power supply 6 to control power off.

[0025] [Action when event occurs] Next, the operation when an event occurs will be described with reference to Fig. 3. The display device 1 detects the occurrence of an event when it receives a signal such as an alarm, operation, or abnormality from the fire control device 2. When an event occurs, the control unit 11 displays a partial monitoring map 17b showing the area where the event occurred in the graphic area 30.

[0026] Specifically, for example, when the control unit 11 detects a change in the status (alarm) of the smoke detector 20 installed on the fifth floor based on a signal from the fire receiver 2, it switches the display in the graphic area 30 from the normal screen to an event occurrence screen 35. The event occurrence screen 35 displays a partial monitoring map 17b of the entire fifth floor monitoring map 17a, including the area where the activated smoke detector 20 is located. The control unit 11 also changes the color of the symbol 20a of the smoke detector 20 on the partial monitoring map 17b, for example, to red, and flashes it so that it can be distinguished from other smoke detectors that have not yet activated. The control unit 11 further surrounds the area where the activated smoke detector 20 is located, such as a store, with a red frame, for example, and displays a flame symbol superimposed within the frame. Note that this display is merely an example, and the display when an alarm is activated is not limited to the display shown in the figure. The control unit 11 then rings the district bell device 23.

[0027] After the normal screen is switched to the event occurrence screen 35 and the first partial monitoring map 17b is displayed in the graphic area 30, the display in the graphic area 30 is changed in response to mouse operations by the operator. For example, the area displayed in the graphic area 30 can be changed by operating the scroll bars 30a and 30b, or the partial monitoring map 17b of another floor can be displayed in the graphic area 30 by operating the selection button 33a in the floor selection area 33.

[0028] When a fire breaks out, a series of events occur, such as the fire doors 24 closing, the smoke exhaust vent opening, and the gas leak detector 25 going off. Each time an event occurs, the control unit 11 generates image data in which the symbol of the equipment whose status has changed on the monitoring map 17a is displayed in a different color, flashing, or the like. The image data generated here is image data of the monitoring map 17a for the entire floor. In other words, even for parts not displayed in the graphic area 30, if a status change occurs in a terminal device located in the non-display area, the control unit 11 generates image data of the monitoring map 17a in which the color, etc. of the symbol of the terminal device has been changed (hereinafter referred to as the event-reflected monitoring map 17a), and stores the image data in the storage unit 17.

[0029] Then, the control unit 11 displays in the graphic area 30 a partial monitoring map 17b of the area selected by the operator's operation from among the monitoring maps 17a stored in the storage unit 17. Therefore, the operator can check the latest event occurrence status on the event occurrence screen 35 displayed in the graphic area 30. In addition, the operator can change the area displayed in the graphic area 30 by operating the scroll bars 30a and 30b, and perform necessary confirmation work, etc.

[0030] (Transmission of Partial Surveillance Map 17b) Every time an event occurs, the control unit 11 transmits image data of the event occurrence screen 35 from the transmission unit 18 to the external device 19 via the network N. In other words, every time an event occurs and the monitoring map 17a is updated, the transmission unit 18 transmits image data of the event occurrence screen 35 based on the partial monitoring map 17b, which is a part of the monitoring map 17a on which the event has been reflected, from the transmission unit 18 to the external device 19 via the network N. In addition, the transmission unit 18 transmits image data of the event occurrence screen 35 to notify the user terminal 3 that an alarm has occurred. The transmission format of the image data is not particularly limited, and may be, for example, transmitted as an attachment to an email.

[0031] The external device 19 receives image data from the display device 1 via the receiving unit 19a and stores the received image data in the storage unit 19b so that it can be read by the user terminal 3. Each time image data is sent from the display device 1, the external device 19 overwrites the latest image data and updates the storage unit 19b. For example, when the smoke detector 20 on the fifth floor goes off, the external device 19 saves the image data of the partial surveillance map 17b of the fifth floor, which is sent from the display device 1 and shows an alarm indication for the symbol 20a of the smoke detector 20. Later, when the smoke detector 20 on the fifth floor recovers, the external device 19 overwrites the image data of the partial surveillance map 17b of the fifth floor, which is sent from the display device 1 and shows a recovery indication (the display before the alarm was activated). This ensures that the latest image data for each floor is always stored in the storage unit 19b of the external device 19.

[0032] In this way, the display device 1 transmits image data of the partial monitoring map 17b displayed in the graphic area 30 to the external device 19 each time an event occurs. The external device 19 then stores the image data of the partial monitoring map 17b from the display device 1 in the storage unit 19b so that it can be read by the user terminal 3. Therefore, a disaster prevention manager can access the external device 19 from his / her own user terminal 3 via the network N, read the image data of the partial monitoring map 17b stored in the storage unit 19b, and display it on the display unit of the user terminal 3. Note that the user terminal 3 only needs to have the function of displaying image data; it does not need to have a disaster prevention application or a specific browser installed. Furthermore, as described above, the storage unit 19b stores the latest image data for each floor. Therefore, the disaster prevention manager can check the latest situation for each floor on the user terminal 3.

[0033] As a result, the disaster prevention manager can check the situation at the time of the event occurrence from a location other than the installation location of the display device 1 without going to the installation location of the display device 1. Specifically, the disaster prevention manager can check the partial monitoring map 17b displayed in the graphic area 30 at the time of the event occurrence.

[0034] [Video saving operation] Next, the video saving operation will be described. When a fire breaks out, the operator uses the mouse 16 to perform tasks such as confirming that fire doors 24 installed in areas not displayed in the graphic area 30 have automatically closed, or confirming whether the smoke exhauster 26 is operating. In the former task, the operator operates the scroll bars 30a and 30b with the mouse 16 to display the fire doors 24 in the graphic area 30. In the latter task, the operator switches the screen by clicking the selection button 33a in the floor selection area 33 with the mouse 16 so that the partial monitoring map 17b of a floor where a smoke exhauster 26 is installed, which is different from the fifth floor where the fire broke out, is displayed.

[0035] To enable such post-event analysis of the operator's operations, the control unit 11 performs the following process. First, when an event occurs, the control unit 11 acquires from the storage unit 17 a moving image of the screen displayed in the graphic area 30 for a predetermined time T (e.g., 3 minutes) before and after the event occurrence, that is, a moving image of the event occurrence screen 35. The storage unit 17 stores the moving image of the event occurrence screen 35 as a moving image up to a preset data capacity, and when the data capacity becomes full, the old data is erased and new data is overwritten.

[0036] As described above, since the video of the event occurrence screen 35 is stored in the storage unit 17, the control unit 11 acquires the video of the event occurrence screen 35 for the predetermined time T before and after the event occurrence from the storage unit 17. Note that in a situation where events occur one after another and the interval between the events is shorter than the predetermined time T, it is sufficient to acquire video for the predetermined time T between the first and last event occurrences and before and after the interval.

[0037] Then, the control unit 11 transmits the acquired video from the transmission unit 18 to the external device 19 via the network N. The external device 19, which has received the video from the display device 1, stores the received video in the storage unit 19b so that it can be read out by the user terminal 3.

[0038] By storing the video of the event occurrence screen 35 for a predetermined time T before and after the event occurrence in the storage unit 19b of the external device 19 in the above manner, the disaster prevention manager can access the external device 19 from his / her own user terminal 3 and check the video of the event occurrence screen 35 without having to go to the location where the display device 1 is installed. Here, the event occurrence screen 35 is a screen that changes in response to input operations by an operator using the mouse 16 from the operation input unit 15. Therefore, the video of the event occurrence screen 35 records the operator's operations on the terminal device, screen switching, the movement trajectory of the mouse 16, etc. Therefore, the disaster prevention manager can use the video of the event occurrence screen 35 to perform a post-event analysis of the operator's operations.

[0039] When performing post-mortem analysis, it is important to check the order in which the alarms occurred and what operations the operator performed. The history list, which will be described later, records the events that occurred in order, so by looking at the history list you can see the order in which the alarms occurred, but the operations performed by the operator are not recorded.

[0040] In contrast to this, in the first embodiment, the event occurrence screen 35 itself is saved as a video as described above, so that operator operations that are not recorded in the history list can be confirmed, enabling detailed post-event analysis.

[0041] [Save various lists] Next, the storage of various lists will be described. Fig. 5 is a diagram showing an example of various lists stored in the memory unit of the display device of the fire alarm system according to the first embodiment. The memory unit 17 stores a screen list 171, an alarm list 172, and a history list 173. The display unit 14 displays a list screen in the graphic area 30 based on these lists. To display the list screen, a user operates "Screen Selection" (not shown) on the menu bar 34 to open a submenu, and then clicks with the mouse 16 to select the desired list from the menu of "Screen List," "Alarm List," or "History List" displayed in the submenu, and the selected list can be displayed in the graphic area 30.

[0042] The list screen of the screen list 171 displays a list of floor numbers for each floor of the building to be monitored, and the floor on which an event is currently occurring is displayed in red or similar. In this example, if a fire has occurred on the fifth floor, "fifth floor" is displayed in red or similar. The list screen of the alarm list 172 displays the time and location of the currently occurring event in red or similar. The list screen of the history list 173 displays a list of the events displayed in the alarm list area 32, with the most recent event displayed in red or similar. The history list 173 allows, for example, a maximum of 50,000 events to be checked.

[0043] Each time an event occurs, the control unit 11 updates these lists stored in the storage unit 17 and transmits the latest list from the transmission unit 18 to the external device 19 via the network N. Upon receiving list data from the display device 1, the external device 19 stores the received list data in the storage unit 19b. Each time list data is transmitted from the display device 1, the external device 19 overwrites the latest list data and updates the storage unit 19b. This ensures that the latest list is always stored in the storage unit 19b of the external device 19.

[0044] By storing the various lists in the memory unit 19b of the external device 19 in the manner described above, the disaster prevention manager can access the external device 19 from his / her own user terminal 3 to check the various lists, and use them to understand the current situation and for subsequent analysis, without having to go to the location where the display device 1 is installed.

[0045] [Effects of Fire Alarm Equipment Display Device 1] As described above, the display device 1 of the fire alarm system according to the first embodiment includes the transmission unit 18 that transmits image data displayed on the event occurrence screen 35 to the external device 19. In this way, the display device 1 of the fire alarm system can transmit image data of the event occurrence screen 35 from the transmission unit 18 to the external device 19 so that the event occurrence screen 35 can be viewed from a location other than the location where the display device 1 is installed.

[0046] Furthermore, the display device 1 of the fire alarm system transmits video of the event occurrence screen 35 for a predetermined time T before and after the event occurrence from the transmission unit 18 to the external device 19. This allows the disaster prevention manager to access the external device 19 from his / her own user terminal 3, check the video, and perform a post-event analysis of the operator's operations, without having to go to the location where the display device 1 is installed.

[0047] Embodiment 2 In the above-described first embodiment, when an event occurs, image data of the partial monitoring map 17b is transmitted from the display device 1 to the external device 19. In contrast, in the second embodiment, image data of the monitoring map 17a, including the portion not displayed on the event occurrence screen 35, is transmitted from the display device 1 to the external device 19. The following description will focus on the differences between the second embodiment and the first embodiment, and the contents not described in the second embodiment are the same as those in the first embodiment.

[0048] In the event of a fire, it is necessary to check the status of equipment in areas not displayed in the graphic area 30. Specifically, for example, there may be cases where it is desired to check whether fire doors 24 installed in areas not displayed in the graphic area 30 are closed, or whether equipment that does not need to be activated has been activated by mistake.

[0049] For this reason, the control unit 11 of the display device 1 of the second embodiment transmits image data of the monitoring map 17a, which is a monitoring map 17a in which the event has been reflected and which includes a partial monitoring map 17b, from the transmission unit 18 to the external device 19 via the network N each time an event occurs. The external device 19 receives image data from the display device 1 and stores the received image data in the storage unit 19b. Every time image data is sent from the display device 1, the external device 19 overwrites the latest image data and updates the storage unit 19b. The external device 19 stores the image data from the display device 1 in the storage unit 19b so that the image data can be read out by the user terminal 3.

[0050] With the above configuration, the disaster prevention manager can operate the user terminal 3 to display the surveillance map 17a on the display unit of the user terminal 3, thereby checking parts that are not displayed in the graphic area 30 of the display device 1. When displaying the surveillance map 17a on the display unit of the user terminal 3, the surveillance map 17a may be displayed in a reduced size so that the entire map is displayed, or the map can be freely enlarged or reduced by pinching out and in with fingers. This can be done using a default function of the user terminal 3, such as a smartphone.

[0051] Note that a portion of the monitoring map 17a is displayed in the graphic area 30 as the partial monitoring map 17b. If the partial monitoring map 17b is a 1x screen, the monitoring map 17a can be 2x, 4x, 8x, 16x, etc. For example, a 2x screen is a screen that displays half the area of ​​the monitoring map 17a. From another perspective, when a 2x screen is displayed in the graphic area 30, it can also be said that only half the area of ​​the monitoring map 17a is displayed in the graphic area 30.

[0052] The display device 1 of the second embodiment transmits and stores image data of the monitoring map 17a, including areas not displayed in the graphic area 30, to the external device 19. This allows the disaster prevention manager to grasp the situation in areas not displayed in the graphic area 30 from his / her own user terminal 3, and thus allows the disaster prevention manager to grasp the situation of the fire outbreak more accurately and precisely.

[0053] [Effects of Fire Alarm Equipment Display Device 1] As described above, the display device 1 of the fire alarm system of the second embodiment has the same effects as those of the first embodiment, and also has the following effects: When an event occurs, the display device 1 transmits image data of the entire surveillance map 17a, including the partial surveillance map 17b, from the transmitter 18 to the external device 19. Therefore, the disaster prevention manager can access the external device 19 from the user terminal 3 and check the status of parts that are not displayed in the graphic area 30.

[0054] In the above-described first embodiment, it is not necessary for a disaster prevention application to be installed on the user terminal 3. However, in order to easily check the current situation when a fire occurs, a disaster prevention application may be installed on the user terminal 3 so that the following display can be performed.

[0055] FIG. 6 is a diagram showing an example of a display of a surveillance map on a user terminal of the display system according to the second embodiment. A disaster prevention application is installed on the user terminal 3. When a predetermined operation is performed by a disaster prevention manager, the user terminal 3 starts the disaster prevention application and displays a surveillance map 17a on the display unit of the user terminal 3. The user terminal 3 first displays the most recent surveillance map 17a among the surveillance maps 17a stored in the storage unit 19b of the external device 19. In the example of FIG. 6, the surveillance map 17a of the fifth floor where the fire occurred is displayed. Then, when the disaster prevention manager performs a so-called swipe operation on the display screen, the user terminal 3 recognizes this as an instruction to display the next most recent surveillance map 17a, and displays the corresponding surveillance map 17a of the first floor.

[0056] In this way, the user terminal 3 can use the application to sort and display the surveillance maps 17a of each floor in order from the most recent to the oldest.

[0057] In the above embodiment, the external device 19 overwrites the latest image data and updates the storage unit 19b each time image data is sent from the display device 1. However, each time image data is sent, the image data may be stored in the storage unit 19b as separate image data. In this case, the user terminal 3 may display multiple image data stored in the external device 19 side by side, or may display the latest image data and sequentially display previous image data when a swipe operation is performed. The user terminal 3 may also sequentially display previous image data at regular intervals. The user terminal 3 may also display the image data at that time when an event is selected in the history list 173. [Explanation of symbols]

[0058] 1 display device, 2 fire receiver, 3 user terminal, 4 commercial power supply, 5 breaker, 6 standby power supply, 11 control unit, 12 interface unit, 13 image output unit, 14 display unit, 15 operation input unit, 16 mouse, 17 memory unit, 17a surveillance map, 17b partial surveillance map, 18 transmission unit, 19 external device, 19a reception unit, 19b memory unit, 20 smoke detector, 20a symbol, 21 heat detector, 22 transmitter, 23 district bell device, 24 fire door, 25 detector, 26 smoke exhaust machine, 30 graphic area, 30a scroll bar, 30b scroll bar, 31 time display area, 32 alarm list area, 33 floor selection area, 33a selection button, 34 menu bar, 35 event occurrence screen, 171 screen list, 172 alarm list, 173 History list, N network.

Claims

1. A display device for a fire alarm system receives status information of each terminal device from a fire alarm system having a fire receiver and a plurality of terminal devices connected to the fire receiver via signal lines, and displays the status information when an event occurs, A display device for a fire alarm system, comprising a storage unit for recording the operation details of an operator who operates the display device as a video.

2. The display device for a fire alarm system according to claim 1 , wherein the video includes details of operations performed by an operator that are not recorded in a history list in which events that occur are recorded in sequence.

3. The display device for a fire alarm system as described in claim 1 or claim 2, wherein the operation content of the operator recorded in the video includes at least a portion of the screen switching operation of the display device using the mouse by the operator, the mouse movement trajectory, and the operation content of the terminal device selected by the operator.

4. 4. The display device according to claim 1, further comprising a transmission unit that transmits the video to an external device.

5. 5. The display device for a fire alarm system according to claim 1, wherein the video records the operation content of the operator at a predetermined time before and after the occurrence of an event.

6. A display device for a fire alarm system according to any one of claims 1 to 5; an external device connected to the display device via a network, The display device includes: a transmitting unit that transmits the video to the external device via the network; The external device is a receiving unit that receives the video transmitted from the display device; a storage unit that stores the video received by the receiving unit so that the video can be read out from a user terminal;

Images