JP7340945B2 - Disaster prevention display device - Google Patents

Description

The present invention relates to a disaster prevention display device that displays information on fire alarm equipment on a screen.

Traditionally, fire alarm equipment connected a fire detector to a signal line drawn out from a receiver to monitor fires, but as the equipment scale has become larger and more complex, a huge amount of disaster prevention information is concentrated at the disaster prevention center. Therefore, a disaster prevention display device is installed at the disaster prevention center to display disaster prevention information from fire alarm equipment on a screen, making it possible to respond quickly and appropriately to the disaster prevention information.

The disaster prevention display device displays the floor plan of the building to be monitored, and in the event of a fire, the floor plan of the floor where the fire occurred is automatically displayed, and the fire The symbol of the fire detector placed in the room or other section where the fire occurred will flash red, for example, and a message will be displayed at the bottom of the floor plan indicating the area where the fire was reported. You can check the floor where the fire occurred or the floor directly above by switching the floor plan.

In addition, conventional disaster prevention display devices store disaster prevention information received from fire alarm equipment as historical information, and by viewing the historical information, they can grasp the progress of the fire and the operating status of fire detectors, and analyze the fire. The system can be used to investigate the cause of fires and fires.

By the way, when viewing the historical information stored in the disaster prevention display device, the historical information consisting of the fire occurrence date and time, fire occurrence location, caution level, or fire level is displayed in a list at the bottom of the display screen, and if necessary, Select and display the floor plan of the floor where the fire occurred that corresponds to the history information, and identify the location of the fire by looking at the sensor symbol in the floor plan that corresponds to the location of the fire in the history information list, and check the progress of the fire. Fire verification is conducted by checking the operating status of fire detectors.

Japanese Patent Application Publication No. 07-045386 Japanese Patent Application Publication No. 2017-211780

However, in such conventional disaster prevention display devices, when viewing the stored history information, the floor plan of the floor where the fire occurred where the sensor symbol is arranged is selected and displayed by a separate operation. Since the historical information was used to understand the correspondence relationship with the fire occurrence location on the floor plan, it was complicated to understand the relationship between the progress of the fire and the operation of the fire detector based on the historical information, and the disaster prevention display device There is a problem in that it takes time and effort to verify fires using .

When looking at historical information that stores disaster prevention information, the present invention shows the correspondence between the historical information list and the fire occurrence location on the floor plan, thereby efficiently verifying the fire, analyzing it, and investigating the cause of the fire. The purpose of the present invention is to provide a disaster prevention display device that makes it possible to

(Disaster prevention display device)
The present invention is a disaster prevention display device that displays disaster prevention information of fire alarm equipment,
Disaster prevention information processing means for displaying a plan view of a warning area in which a fire detector alarm symbol is placed at a fire occurrence location when disaster prevention information is received;
Disaster prevention information is stored as historical information, and when displaying historical information, a historical information list including at least the date and time of fire occurrence and fire occurrence location and a floor plan of the corresponding warning area are displayed, and predetermined historical information in the historical information list is displayed. history information processing means for displaying a plan view of alarm symbols corresponding to the above;
Equipped with
The history information processing means is characterized in that it displays on the plan view a leader line connecting selected history information in the history information list and an alarm symbol based on the history information.

(Event forwarding history playback)
The history information processing means further performs history reproduction in which alarm symbols based on the history information are sequentially displayed on the plan view in the display order of the history information list during event forwarding reproduction.

(Time advance history playback)
The history information processing means further performs history reproduction in which alarm symbols based on the history information are sequentially displayed on the plan view as time passes during time forward reproduction.

( Leader line display when history is played )
The history information processing means sequentially displays leader lines connecting history information and alarm symbols in the history information list on the plan view while reproducing the history .

(History playback operation)
The history information processing means stops, fast-forwards, or returns the history playback by a predetermined corresponding operation.

(basic effect)
The present invention is a disaster prevention display device that displays disaster prevention information from fire alarm equipment on a display, and when receiving disaster prevention information, displays a plan view of a warning area in which a fire alarm symbol of a fire detector is placed at the location where a disaster has occurred. A disaster prevention information processing means, which stores the disaster prevention information as historical information, and when operating the historical information display, displays a historical information list including at least the date and time of fire occurrence and the location of the fire, and a floor plan of the corresponding warning area, and displays the historical information list. Since a history information processing means is provided for displaying alarm symbols corresponding to predetermined history information in a plan view, when an operation is performed to view history information in which disaster prevention information is stored, a history information list and a list of history information are displayed. A floor plan of the corresponding warning area is displayed, and an alarm symbol corresponding to, for example, the first history information in the history information list is displayed on the floor plan, and the fire alarm symbol corresponding to the history information in the history information list and the fire on the floor plan is displayed. The correspondence between alarm symbols indicating the location of the fire can be confirmed at a glance, making it possible to efficiently verify the fire.

(Effect of event forwarding history playback)
In addition, the history information processing means further performs history playback in which alarm symbols based on the history information are sequentially displayed on the floor plan in the display order of the history information list during event forwarding playback. Alarm symbols are displayed as 1st alarm, 2nd alarm, etc. according to the order of the history information list, so that the progress of the fire and the operation of the fire detector can be easily grasped and used for fire verification.

(Effect of time forward history playback)
In addition, the history information processing means further performs history playback in which alarm symbols based on the history information are sequentially displayed on the floor plan as time passes during time-forward playback, so that , alarm symbols are displayed according to the actual time elapsed, such as 1st alarm, 2nd alarm, etc., according to the order of the history information list on the floor plan of the warning area, and the time progress of the actual fire and fire detection are displayed. The operation of the device can be easily understood and used for fire verification.

(Effects of selective display of disaster prevention information)
In addition, the history information processing means displays a leader line connecting selected history information in the list display and the alarm symbol based on the history information on the plan view, so that confirmation of the history information in the history information list is possible. For example, when you perform a selection operation by clicking on historical information, the alarm symbol and leader line based on the selected historical information will be displayed on the floor plan, and as you select and operate the history information list arbitrarily, you can check the progress of the fire according to the alarm symbol. The operation of fire detectors can be verified.

(Effects of selective display of disaster prevention information)
In addition, since the history information processing means displays the alarm symbol and leader line based on the selected history information in the history information list on the plan view, the history information processed in the history information list and the plane The correspondence between the alarm symbols showing the location of the fire in the diagram can be confirmed at a glance using the leader lines.

(Effects of history playback operations)
In addition, since the history information processing means is configured to stop, fast-forward, or reverse the history playback by a predetermined corresponding operation, the history information processing means can stop, fast-forward, or go back as necessary during the history playback of event forwarding or time forwarding. By performing this operation, fire verification work based on historical information can be made easier.

An explanatory diagram showing an outline of an R-type fire alarm system equipped with a disaster prevention information device according to the present invention Explanatory diagram showing the functional configuration of the disaster prevention display device Explanatory diagram showing the normal monitoring screen of the disaster prevention display device Explanatory diagram showing the fire monitoring screen of the disaster prevention display device Explanatory diagram showing the history playback screen of the disaster prevention display device Explanatory diagram showing the history playback screen following Figure 5 Explanatory diagram showing the history playback screen following FIG. 6 Explanatory diagram showing the history playback screen following FIG. 7

[Basic concept of embodiment]
FIG. 1 is an explanatory diagram showing an overview of an R-type fire alarm system equipped with a disaster prevention information device according to the present invention, FIG. 2 is an explanatory diagram showing the functional configuration of a disaster prevention display device, and FIG. 3 is a typical diagram of a disaster prevention display device. FIG. 4 is an explanatory diagram showing a monitoring screen. FIG. 4 is an explanatory diagram showing a fire monitoring screen of the disaster prevention display device. FIG. 5 is an explanatory diagram showing a history playback screen of the disaster prevention display device.

The basic concept of the embodiment of the disaster prevention display device according to the present invention is a disaster prevention display device 30 that displays disaster prevention information of a fire alarm system equipped with a receiver 10 and a fire detector 14. A display 36 is provided that displays a plan view 60 of a monitoring area in which a symbol 62 indicating a sensor 14 is arranged, and a disaster prevention information processing unit 42 functioning as a disaster prevention information processing means is configured to display at least the date and time of a fire occurrence when receiving disaster prevention information. A list 64 of disaster prevention information including fire occurrence locations is displayed in the order received, and a plan view 60 of a warning area in which alarm symbols 62a of fire detectors 14 are placed at fire occurrence locations is displayed. The functioning historical information processing unit 44 stores the disaster prevention information list 64 as historical information, and when operating the historical information display, displays a historical information list 70 including at least the date and time of fire occurrence and the location of the fire, and a plan view 60 of the corresponding warning area. is displayed, and an alarm symbol 62a-1 is displayed on the plan view 60 corresponding to predetermined history information in the history information list 70, for example, history information 70-1, and the corresponding history information 70- in the history information list 70 is displayed. 1 and a leader line 72-1 is displayed.

Therefore, when you perform an operation to view historical information, a floor plan 60 of the warning area corresponding to the historical information list 70 is displayed, and a map 60 of the historical information list 70 corresponding to, for example, the first historical information 70-1 in the disaster prevention information list 70 is displayed. An alarm symbol 62a-1 and a leader line 72-1 are displayed on the floor plan 60, and there is a correspondence between the history information 70-1 in the history information list 70 and the alarm symbol 62a-1 indicating the location of the fire on the floor plan 60. The relationship can be confirmed at a glance, and by understanding the progress of the fire and the operation of the fire detector 14, it is possible to efficiently verify the fire. This will be explained in detail below.

[Fire alarm equipment]
As shown in FIG. 1, the disaster prevention display device 30 of this embodiment and the receiver 10 of fire alarm equipment are installed in the disaster prevention center of the building or facility to be monitored. Signal lines 12-1 to 12-3 are drawn out separately. In the following description, the signal lines 12-1 to 12-3 may be referred to as the signal line 12 when there is no need to distinguish them.

The receiver 10 is a so-called R type (Record-type), and a plurality of analog fire detectors 14 having a transmission function and each having a unique address are connected to the signal lines 12-1 and 12-2. Further, an on/off type fire detector 20 and a transmitter 22 are connected to a detector line 18 drawn out from a repeater 16 having a transmission function to which a unique address is set, and a transmission function to which a unique address is set. A functional addressable transmitter 24 is connected.

Further, smoke prevention equipment 26 is connected to the signal line 12-3 via a repeater 16 having a transmission function and having a unique address set therein.

Here, the maximum number of addresses set for terminal devices such as the fire detector 14 and repeater 16 connected to the signal lines 12-1 to 12-3 is, for example, 255, and the signal line 12 has a maximum of 255 addresses. Terminal equipment including the fire detector 14 can be connected.

Fire monitoring control by the receiver 10 is as follows. During normal monitoring, the receiver 10 transmits a broadcast batch AD conversion signal including a batch AD conversion command at regular intervals, and the fire detector 14 that receives this batch AD conversion signal, Detect smoke density or temperature as sensor data. Subsequently, the receiver 10 transmits a paging signal including a polling command that sequentially specifies terminal addresses.

When the fire detector 14 receives a call signal having an address that matches its own address, it transmits a response signal containing the sensor data held at that time. Additionally, the fire detector 14 transmits a fire interrupt signal to the receiver 10 when the smoke concentration or temperature exceeds a predetermined caution level.

Upon receiving the fire interrupt signal, the receiver 10 transmits a group search command signal to identify the group that includes the fire detector 14 that is detecting the fire, and then transmits an intra-group search command signal to detect the fire. The address of the detected fire detector 14 is specified and analog data of the sensor is intensively collected.

In addition, when the receiver 10 identifies the address of the fire detector 14 that transmitted the fire interrupt signal, it determines that it is the first fire alarm, outputs and alerts a caution alarm by sound and display, and generates a caution alarm on the display. Disaster prevention information (fire warning information) including the location of the fire occurrence and event content including a warning level fire alarm is displayed based on the date and time and the sensor address.

The receiver 10 compares the intensively collected analog data with a predetermined fire judgment level that is higher than the predetermined caution level, and when the analog data reaches the fire judgment level, it is judged that there is a fire, and the fire representative light is turned on. lights up, outputs an audible alarm from the speaker, displays disaster prevention information (fire alarm information) including the date and time of the fire alarm occurrence, the location of the fire occurrence, and the fire alarm of the fire level as the event content. The alarm section outputs a fire alarm signal to the outside to perform predetermined alarm shifting control, etc.

The disaster prevention information acquired by the fire monitoring control of the receiver 10 in this manner is transmitted to the disaster prevention display device 30 connected via the transmission line 15 such as RS232, for example.

[Disaster prevention information display device]
(Overview of disaster prevention display device)
As shown in FIG. 2, the disaster prevention display device 30 includes a display control section 32, a transmission section 34, a display 36 provided with a touch panel 38, and a storage section 40. The display control section 32 is composed of a computer circuit having input/output ports, etc., and is provided with a disaster prevention information processing section 42 and a history information processing section 44 as functions executed by a program.

The transmission unit 34 is connected to the receiver 10 of the fire alarm equipment shown in FIG. The disaster prevention information is displayed on the display 36, and the disaster prevention information is stored in the storage unit 40 as history information 46. Further, screen operations on the display 36 can be performed by touch operations on the touch panel 38 or mouse operations (not shown).

When receiving the disaster prevention information, the disaster prevention information processing unit 42 displays a list of disaster prevention information including at least the date and time of occurrence and the place of occurrence in the order in which it was received, and also displays a plan view of the caution area in which the alarm symbol of the fire detector 14 is placed at the place of occurrence. Performs control to display. Here, the disaster prevention information of this embodiment includes fire warning information when the analog data of the fire detector 14 exceeds the warning level, and fire alarm information when the analog level of the fire detector 14 exceeds the fire level. Contains information.

The history information processing unit 44 stores the disaster prevention information received from the receiver 10 of the fire alarm equipment in the storage unit 40 as history information 46, and when operating the history information 46 to display it, creates a history information list including at least the date and time of occurrence and the place of occurrence. Displays a plan view of the corresponding warning area, displays a plan view of an alarm symbol corresponding to predetermined history information in the history information list, and also displays the alarm symbol and the corresponding history information in the list display. Performs control to display a leader line connecting between. The history information 46 processed by the history information processing unit 44 includes fire warning information and fire alarm information processed by the disaster prevention information processing unit 42.

Further, the history information processing unit 44 performs history playback control to sequentially display alarm symbols and leader lines based on the history information on the plan view in the display order of the history information list during a predetermined event forwarding playback operation. Furthermore, during a predetermined time forward playback operation, the history information processing unit 44 performs history playback control to sequentially display alarm symbols and leader lines based on the history information on the plan view according to the date and time of occurrence in the history information list. In this history playback control, the history information processing section 44 can stop, fast-forward, or return the history playback by a predetermined corresponding operation.

[Normal monitoring screen]
The disaster prevention information processing section 42 provided in the display control section 32 shown in FIG. 2 displays the normal monitoring screen 48-1 shown in FIG. 3 on the display 36 in the normal monitoring state. In the normal monitoring screen 48-1, menu buttons 52, 53, 54, and 55 are provided in the menu column 50 at the top left of the screen, and the menu buttons 52, 53, 54, and 55 are "View floor plan,""View upper and lower floors,""Viewhistory," and "View history," respectively. The operation details for "Configure settings" are displayed. FIG. 3 shows the case where the menu button 52 for "View floor plan" is operated and the operation button 56 for "2F" at the bottom right of the screen is operated, whereby the floor plan of the 2nd floor of the building to be monitored is displayed in the center of the screen. 60 is displayed.

The plan view 60 displayed on the screen is an enlarged display of the area 58a indicated by diagonal lines in the reduced plan view 58 at the bottom left of the screen. When the area 58a is moved by mouse operation or touch operation, the plan view 60 is moved in the operating direction. can be scrolled to.

In the plan view 60, the room allocation corresponding to the monitoring section of the building 2F is displayed, and a symbol 62 indicating the installation of the fire detector 14 shown in FIG. 1 is displayed. In this embodiment, only the symbol 62 of the fire detector (smoke detector) 14 is shown to simplify the explanation, but in reality, heat detectors other than smoke detectors, In addition to symbols for flame detectors, photoelectric separate detectors, transmitters, etc., symbols for fire extinguishing equipment such as smoke prevention equipment and sprinkler extinguishing equipment are also displayed.

[Fire monitoring screen]
FIG. 4 shows a fire monitoring screen 48-2 that is displayed when a fire is determined by the receiver 10. The disaster prevention information processing unit 42 of the disaster prevention display device 30 in FIG. For example, "2019/02/20 14:02 2nd floor 46 area ``Tenant 201 (Caution Level) Alert'' is displayed, and based on this fire alert information, a plan view 60 including the location of the fire on the second floor is displayed in the center of the screen.

In addition, the disaster prevention information processing unit 42 causes the corresponding symbol on the floor plan 60 to flash yellow at a predetermined period in response to the "2nd floor 46 district tenant 201" indicating the location of the fire occurrence in the fire alarm symbol 62a. Display as .

Note that when the disaster prevention information processing unit 42 receives fire alarm information following fire warning information, the disaster prevention information processing unit 42 adds a fire alarm information to the disaster prevention information list 64 indicating that the analog data of the fire detector 14 has exceeded the fire level. For example, "2019/02/20 14:02 2nd floor, district 46 tenant 201 (fire level) alarm" is displayed, and based on this fire alarm information, the alarm symbol 62a in the floor plan 60 is displayed at a predetermined period. Switch to flashing red.

[Replay history information]
(Start playing history information)
As shown in the history playback screen 48-3 in FIG. 5, when the "View History" menu button 54 in the menu field 50 is operated, a history playback time setting section 66 and a history playback operation section 68 are displayed below. Is displayed.

The history playback time setting section 66 is for setting the start date and time and/or end date and time of the history to be played, and is provided with selection buttons for "start date and time" and "end date and time", and for example, by operating the selection button for "start date and time". For example, if you set "2019/02/20 14:00" in the time setting section and press the "OK" button in this state, a history information list 70 will appear at the bottom of the screen, and history information 70- 1 is displayed.

The history information 70-1 includes, for example, "2019/02/20 14:02" as the occurrence date and time, "2nd floor 46 area tenant 201" as the occurrence location, and further includes, for example, "(Warning level) alert" as the occurrence event. ” is included.

Further, the history information processing unit 44 displays an alarm symbol 62a-1 at the occurrence location in the plan view 60, corresponding to the history information 70-1 displayed in the history information list 70. Here, since the alarm symbol 62a-1 is based on the fire warning information, it flashes yellow at a predetermined period.

Furthermore, the history information processing unit 44 creates a leader line 72-1 that connects the alarm symbol 62a-1 placed as the occurrence location on the plan view 60 and the corresponding history information 70-1 in the history information list 70. Display. The leader line 72-1 is a transparent line, and even if the leader line 72-1 is displayed, the display below it can be seen through.

By displaying the relationship between the alarm symbol 62a-1 on the plan view 60 and the history information 70-1 using the leader line 72-1 in this way, it is easy to understand the progress of the fire and the operation of the fire detector. It can be used for verification.

The history playback operation section 68 is provided with a "return" button, a "playback 1" button, a "playback 2" button, a "stop" button, and a "fast forward" button. Among these, the "Playback 1" button is for event forwarding history playback, and performs history playback in which alarm symbols and leader lines based on the history information are sequentially displayed on the plan view in the display order of the history information list 70. Moreover, the "Playback 2" button is a time-forward history playback that sequentially displays alarm symbols and leader lines based on the history information in the history information list 70 on the plan view as time passes.

Note that the history playback time setting section 66 and the history playback operation section 68 are just examples, and any suitable form can be used as long as the playback start date and time and the playback end date and time of history information are set and the playback operation is performed.

(History information is being played)
FIG. 6 shows the history playback screen 48-4 when the "Playback 1" button of the history playback operation section 68 is operated after initial settings for history playback are made on the history playback screen 48-3 of FIG. In the list 70, "2019/02/20 14:03 2nd floor, district 46 tenant 201 (fire level) alarm" is additionally displayed as the next history information 70-2, and the alarm symbol 62a-2 on the floor plan 60 is displayed. In response to "(fire level) alarm", the display blinks in red at a predetermined period, and a leader line 72-2 connecting the history information 70-2 and the alarm symbol 62a-2 is displayed.

Subsequently, after a predetermined period of time, the history display screen 48-5 shown in FIG. 7 and the history display screen 48-6 shown in FIG. 8 are sequentially switched.

In the history playback screen 48-5 in FIG. 7, “Fire Report 2” is displayed in the event frame 65-2, and “2019/02/20 16:05” is displayed in the history information list 70 as the next history information 70-3. 2nd Floor District 46 Tenant 200 (Caution Level) Alert'' is displayed, and on the floor plan 60, due to the spread of the fire, an alarm symbol 62a-3 is displayed in the area adjacent to the alarm symbol 62a-2, and ``(Caution Level) Alert'' is displayed. The alarm symbol 62a-3 blinks yellow at a predetermined period in response to "level) alarm", and a leader line 72-3 connecting the history information 70-3 and the alarm symbol 62a-3 is displayed.

In the history playback screen 48-6 of FIG. 8, "2019/02/20 16:08 2nd floor, district 46 tenant 200 (fire level) alarm" is displayed in the history information list 70 as the next history information 70-4. , the plan view 60 displays an alarm symbol 62a-4 that blinks red at a predetermined period in response to "(fire level) alarm" due to the expansion of the fire, and further displays history information 70-4 and the alarm symbol 62a. A leader line 72-4 connecting -4 is displayed.

Similarly, alarm symbols 62a-i and leader lines 72-i are sequentially displayed on the plan view 60 based on the stored history information 70-i to grasp the progress of the fire and the operation of the fire detector 14. be able to.

Furthermore, when the "playback 2" button provided on the history playback operation section 68 in FIG. 5 is operated, the alarm symbols 62a-i and The leader lines 72-i are displayed in sequence.

When an event in which the alarm is restored occurs in the history information, the alarm symbol changes to a normal non-alarm symbol.

(Individual selection display of history information)
Furthermore, when a playback period of history information is set by selecting the "start date and time" and "end date and time" in the history playback time setting section 66 of the history playback screen 48-3 shown in FIG. The history information is read out and displayed in the history information list 70 in a scrollable manner.

When any historical information is selected from the historical information list 70 displayed in this way using a mouse operation, an alarm symbol and a leader line based on the selected historical information are displayed on the plan view 60, and the historical information is displayed. can be selected and played individually.

[Modification of the present invention]
(Symbol display at the start of history)
In the above embodiment, the alarm symbol is displayed from the time of the history playback operation, but the normal symbol may also be displayed. When performing a history playback operation, a process is performed to search the history in which all the symbols most recent before the start of history playback have not triggered, and change the symbol to a trigger symbol based on the trigger event from that state. After doing so, perform the history playback operation. This makes it possible to reproduce the display on the disaster prevention display device at the time of the history, and also to prevent failure to confirm the event that first occurred at the time of the fire.

(Alarm symbol)
In the above embodiment, the display control of alarm symbols of fire detectors (smoke detectors) was taken as an example, but sensor symbols such as heat detectors, flame detectors, photoelectric separation type sensors, etc. This can be similarly applied to the case where is displayed as a warning symbol.

(P type receiver)
Furthermore, although the above embodiment takes as an example a fire alarm system in which an R-type fire detector is connected via a signal line from an R-type receiver, Similarly, for fire alarm equipment in which an address is set on the sensor line and an addressable fire detector with a transmission function is connected, disaster prevention information is transmitted from the receiver to the disaster prevention display device and displayed on the plan view of the display. It can also be applied as is when displaying information symbols.

(others)
Furthermore, the present invention includes appropriate modifications without impairing its objects and advantages, and is not limited by the numerical values shown in the above embodiments.

10: Receivers 12-1 to 12-3: Signal lines 14, 20: Fire detector 15: Transmission line 16: Repeater 18: Detector line 22: Transmitter 24: Addressable transmitter 26: Smoke prevention equipment 30 :Disaster prevention display device 32:Display control section 34:Transmission section 36:Display 38:Touch panel 40:Storage section 42:Disaster prevention information processing section 44:History information processing section 46:History information 48-1:Normal monitoring screen 48-2: Fire monitoring screens 48-3 to 48-6: History playback screen 50: Menu field 58: Reduced floor plan 58a: Area 60: Floor plan 62: Symbols 62a, 62a-1 to 62a-4: Alert symbol 64: Disaster prevention information List 66: History playback time setting section 68: History playback operation section 70: History information list 70-1 to 70-4: History information 72-1 to 72-4: Leader line

Claims (5)

A disaster prevention display device that displays fire information of fire alarm equipment,
fire information processing means for displaying a plan view of a warning area in which a fire detector symbol is placed at the fire occurrence location when receiving the fire information;
The fire information is stored as history information, and when displaying the history information, a history information list including at least the date and time of fire occurrence and the fire occurrence location and a corresponding floor plan are displayed, and predetermined history information in the history information list is displayed. history information processing means for displaying alarm symbols corresponding to the above on a plan view;
Equipped with
The disaster prevention display is characterized in that the history information processing means displays on the plan view a leader line connecting the selected history information in the history information list and the alarm symbol based on the history information. Device.
In the disaster prevention display device according to claim 1,
The disaster prevention display device is characterized in that the history information processing means further performs history reproduction for sequentially displaying the alarm symbols based on the history information on the plan view in the display order of the history information list during event forwarding reproduction. .
In the disaster prevention display device according to claim 1,
The history information processing means is further characterized in that, during time forward playback, history playback is performed in which the alarm symbols based on the history information in the history information list are sequentially displayed on the plan view as time passes. Disaster prevention display device.
In the disaster prevention display device according to claim 2 or 3 ,
The disaster prevention device is characterized in that the history information processing means sequentially displays the leader line connecting the history information in the history information list and the alarm symbol on the plan view when the history is being reproduced. Display device.
In the disaster prevention display device according to any one of claims 2 to 4 ,
The disaster prevention display device is characterized in that the history information processing means stops, fast-forwards, or reverses the history playback by a predetermined corresponding operation.

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