Disaster prevention system

Abstract

To make it possible to easily recognize minor variations in a detected value of a fire detector.SOLUTION: A disaster prevention system 1 includes: an acquisition part 311 that acquires a detection value of a fire sensor 10; and a display part 35 that displays a symbol indicating a position of the fire sensor 10 and a graph corresponding to the detection value of the fire sensor 10 side by side on a map of each floor of a building.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a disaster prevention system. [Background technology]

[0002] Patent Document 1 describes that the degree of danger in a detection zone is determined based on analog value data from a fire detector, and the color within the detection zone is changed based on the degree of danger. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-180074 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, the importance of early detection of fires has increased in national treasures, important cultural properties (structures), warehouses, etc. However, with conventional technology, it is difficult to notice minor changes in the fire detector's detection value before the detection value reaches a value that triggers an alarm. For example, with the technology described in Patent Document 1, the color of the detection area changes depending on the danger level of the detection area, but it is difficult to detect minor changes in the fire detector's detection value just from the color change within the detection area.

[0005] An object of the present invention is to make it possible to easily recognize slight abnormalities in the detection values ​​of a fire detector. [Means for solving the problem]

[0006] One aspect of the present invention provides a disaster prevention system that includes an acquisition unit that acquires detection values ​​from a fire detector, and a display unit that displays symbols indicating the location of the fire detectors and graphs corresponding to the detection values ​​from the fire detectors side by side on a map of each floor of a building. [Effects of the Invention]

[0007] According to the present invention, it is possible to easily recognize a slight abnormality in the detection value of a fire detector. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing an example of the configuration of a disaster prevention system according to an embodiment. [Figure 2] FIG. 10 is a diagram showing an example of a map screen display. [Figure 3] FIG. 10 is a diagram showing a display example of a trend history screen. [Figure 4] FIG. 10 is a diagram showing a display example of a list screen. [Figure 5] 10 is a flowchart showing an example of a map display process on the integrated control panel. [Figure 6] 10 is a flowchart showing an example of a trend history display process. [Figure 7] 10 is a flowchart showing an example of a list display process. [Figure 8] FIG. 10 is a diagram showing a display example of a map screen according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] (composition) FIG. 1 is a diagram showing an example of the configuration of a disaster prevention system 1 according to one embodiment. The disaster prevention system 1 has the function of centrally managing and comprehensively monitoring disaster prevention equipment installed in a building. The disaster prevention system 1 includes a plurality of fire detectors 10, a fire receiver 20, and a general operation panel 30. The plurality of fire detectors 10 and the fire receiver 20 are connected via a signal line L1. The fire receiver 20 and the general operation panel 30 are connected via a signal line L2.

[0010] The fire detector 10 is an analog fire detector. The fire detector 10 includes at least one of a smoke detector and a heat detector. The smoke detector detects the concentration of smoke in the surrounding area and transmits the detected smoke concentration as a detection value to the fire receiver 20. The heat detector detects the temperature in the surrounding area and transmits the detected temperature as a detection value to the fire receiver 20.

[0011] The fire receiver 20 constantly collects and stores detection values ​​from the fire detectors 10. More specifically, the fire receiver 20 transmits detection value acquisition requests to the multiple fire detectors 10 in turn, and receives the detection values ​​transmitted from these fire detectors 10 in response to these acquisition requests. When the fire receiver 20 has received detection values ​​from all the fire detectors 10, it returns to the first fire detector 10 and repeats this process. The fire receiver 20 stores the history of detection values ​​collected from the fire detectors 10 in this way. Furthermore, when the detection value of a fire detector 10 satisfies a predetermined condition, the fire receiver 20 determines that a fire has occurred and outputs a fire alarm.

[0012] The general operation panel 30 has a function of displaying the status of disaster prevention equipment installed in a building on a map of the building. The general operation panel 30 comprises a control unit 31, a memory unit 32, a communication unit 33, an operation unit 34, and a display unit 35. Each unit of the general operation panel 30 is connected via a bus.

[0013] The control unit 31 controls each unit of the general operation panel 30. The control unit 31 includes a processor such as a CPU. The memory unit 32 stores programs for realizing the functions of the general operation panel 30 and various data. The memory unit 32 includes memory such as a ROM and a RAM, and storage such as an HDD and an SSD. The communication unit 33 communicates with the fire receiver 20 via the signal line L2. The operation unit 34 is used to operate the general operation panel 30. The operation unit 34 includes, for example, a keyboard and a mouse. The display unit 35 displays various information. The display unit 35 includes, for example, a liquid crystal display.

[0014] The control unit 31 functions as an acquisition unit 311, a conversion unit 312, and a display control unit 313. These functions are realized by the control unit 31 executing a program stored in the storage unit 32, performing calculations, or controlling each unit of the integrated operation panel 30. Note that at least some of the functions of the control unit 31 may be realized by a hardware module such as an electronic circuit.

[0015] The acquisition unit 311 acquires the detection value of the fire detector 10. More specifically, the acquisition unit 311 transmits an acquisition request for the detection value of the fire detector 10 to the fire receiver 20, and receives the detection value of the fire detector 10 transmitted from the fire receiver 20 in response to this acquisition request.

[0016] The conversion unit 312 converts the detection value of the fire detector 10 acquired by the acquisition unit 311 into an alert level. The alert level indicates the possibility of a fire breaking out. The higher the alert level, the higher the possibility of a fire breaking out. The alert levels are divided into, for example, 10 levels, with LV0 indicating a normal state, LV1 to LV4 indicating semi-normal states, LV5 to LV8 indicating caution states, and LV9 to LV10 indicating a fire state. The memory unit 32 pre-stores a conversion table that associates alert levels with the concentration range of smoke detected by a smoke detector and the temperature range detected by a heat detector. The conversion unit 312 converts the detection value of the fire detector 10 into an alert level using this conversion table.

[0017] For example, for smoke density and temperature, a caution threshold, which is the boundary between a quasi-normal state and a caution state, and a fire threshold, which is the boundary between a caution state and a fire state, are set in advance. In the conversion table, LV1 to 4 are associated with values ​​obtained by dividing the range of smoke density below the caution threshold into four equal parts. LV5 to 8 are associated with values ​​obtained by dividing the range of smoke density above the caution threshold and below the fire threshold into four equal parts. LV9 to 10 are associated with values ​​obtained by dividing the range of smoke density above the fire threshold but below the upper measurable limit into two equal parts. Temperature is also assigned to LV1 to 10 in a similar manner. The caution level is set at the boundary between LV4 and LV5. The fire level is set at the boundary between LV8 and LV9. When this method is adopted, the range of smoke density and temperature associated with each alert level differs depending on whether the state indicated by the alert level is a quasi-normal state, a caution state, or a fire state.

[0018] If the smoke concentration detected by a smoke detector or the temperature detected by a heat detector are displayed as is, it is difficult for the general public to understand the meaning of the detected values. However, by converting the detected values ​​of the fire detector 10 into an alert level, the meaning of the detected values ​​of the fire detector 10 becomes easier to understand. Furthermore, if multiple fire detectors 10 include a smoke detector and a heat detector, the detected values ​​of these fire detectors 10 are expressed in different units, such as the smoke concentration [% / m] and the temperature [°C] of the heat detector. However, by converting the detected values ​​of the fire detector 10 into an alert level, the detected values ​​of these fire detectors 10 can be expressed in a common unit.

[0019] The display control unit 313 causes the display unit 35 to display a map screen 350 in accordance with the map data for each floor of the building stored in advance in the storage unit 32 and the alert level obtained by conversion by the conversion unit 312. The map screen 350 is a screen that displays the alert level of the detection value of the fire detector 10 on a map of each floor of the building.

[0020] FIG. 2 is a diagram showing an example of a map screen 350, which is an example showing a portion of a floor of an office building. The map screen 350 includes a map of the building's floor to be displayed. This map is a floor plan. On the map, symbols 351 of fire detectors 10 installed on the floor to be displayed and bar graphs 352 are arranged side by side. The symbols 351 indicate the locations of the fire detectors 10. The symbols 351 are arranged at positions on the map corresponding to the installation locations of the fire detectors 10.

[0021] The bar graph 352 indicates the alert level of the detection value of the fire detector 10. The bar graph 352 includes a bar indicating the alert level. The bar extends upward as the alert level increases. The caution level and fire level are displayed on the right side of the bar. The bar is displayed in different colors depending on the alert level. For example, if the alert level is LV0, the bar is displayed in gray. This indicates that the bar is not displayed. In the bar, the portion above LV1 but below the caution level is displayed in green, the portion above the caution level but below the fire level is displayed in yellow, and the portion above the fire level is displayed in red. Note that the color of the bar is not limited to the colors exemplified here and may be other colors. For example, the color of the bar may be displayed in a gradation that becomes darker as the alert level increases. Furthermore, the bar graph 352 can be hidden for each floor or for each fire detector 10 by user operation.

[0022] The bar graph 352 makes it easy to detect not only fire detectors 10 whose alert level is the caution level or above, but also fire detectors 10 whose alert level is LV1 or above but below the caution level. Fire detectors 10 whose alert level is the caution level or above are displayed separately in an alarm list (not shown) and can be recognized from this alarm list, but fire detectors 10 whose alert level is LV1 or above but below the caution level are not displayed in the alarm list and cannot be recognized from the alarm list. The bar graph 352 makes it easy to detect fire detectors 10 whose detection values ​​have slight abnormalities.

[0023] In the example shown in FIG. 2 , the display target floor has six restricted areas: “Office J1,” “Office J2,” “Hallway R1,” “Hallway R2,” “Stairs,” and “Toilet.” The background color of the restricted area may be changed according to the color of the bar graph 352 of the fire detector 10 installed in that restricted area. To make it easier to understand the detection value of the fire detector 10 installed in the restricted area in relation to the bar graph 352 while preventing the symbol 351 from becoming difficult to see, it is preferable to change the color of the restricted area to a color that is the same hue as the color of the bar in the bar graph 352 but lighter than the color of the bar. For example, if the alert level of the fire detector 10 installed in the “Toilet” is level 10, the bar in the bar graph 352 includes a red bar representing level 10. In this case, the background color of the restricted area for the “Toilet” may be changed to a light red. Note that if multiple fire detectors 10 are installed in one restricted area and the alert levels of these fire detectors 10 are different, the background color of that restricted area may be changed according to the color of the bar graph 352 indicating the highest alert level. By changing the background color of the restricted area in this way, even if the bar graph 352 is not displayed, the detection values ​​of the fire detectors 10 installed in the restricted area can be roughly grasped.

[0024] The color of the symbol 351 may also be changed according to the color of the bar of the bar graph 352. For example, if the bar of the bar graph 352 of the fire detector 10 installed in the "toilet" includes a red color, the color of the symbol 351 of that fire detector 10 may be changed to red.

[0025] Furthermore, the display control unit 313 causes the display unit 35 to display a trend history screen 360 in accordance with the detection values ​​of the fire detector 10 acquired by the acquisition unit 311. The trend history screen 360 is a screen that displays changes in the detection values ​​over a predetermined period for a single fire detector 10 selected by the user.

[0026] 3 is a diagram showing an example of the display of a trend history screen 360. The trend history screen 360 includes a trend graph 361 that shows the detection values ​​of the fire detector 10 that is the display target. The trend graph 361 is a line graph that shows changes in the detection values ​​of the fire detector 10 that is the display target over a predetermined period of time, such as three minutes. The trend graph 361 also displays the most recent detection values ​​of the fire detector 10 that is the display target. This trend graph 361 allows for more accurate indication of the detection values ​​of the fire detector 10 that is the display target and their trends.

[0027] Furthermore, the display control unit 313 causes the display unit 35 to display a list screen 370 according to the alert level obtained by the conversion by the conversion unit 312. The list screen 370 is a screen that displays, among the fire detectors 10 installed in a building, a list of fire detectors 10 that are in a quasi-normal state, where the alert level is equal to or higher than LV1 and is lower than the caution level. Displaying this list screen 370 is suitable when it is desired to monitor the entire area, not just a specific area, such as when monitoring a large warehouse property or a multi-story parking building.

[0028] 4 is a diagram showing an example of the display of the list screen 370. The list screen 370 includes a list of fire detectors 10 installed in a building that are in a quasi-normal state, with an alert level equal to or higher than LV1 and lower than the caution level, sorted in descending order of alert level. This list is an example of a list of fire detectors whose detection values ​​are lower than a predetermined value according to the present invention. Note that this list does not necessarily have to display all fire detectors 10 in a quasi-normal state, and may instead display only a predetermined number of fire detectors 10 with high alert levels among the fire detectors 10 in a quasi-normal state.

[0029] This list makes it possible to easily find fire detectors 10 that have not yet reached the warning level but are not in a completely normal state, without having to display a map of all floors on the map screen 350 shown in Fig. 2 and check the bar graphs 352. This list also makes it easy to recognize such fire detectors 10 even when the bar graphs 352 are not displayed.

[0030] The list screen 370 also includes a button 371 for selecting one of the fire detectors 10 in a quasi-normal state included in the list. When one of the fire detectors 10 in a quasi-normal state is selected from the list by operating this button 371, the map screen 350 is displayed so that the symbol 351 of the selected fire detector 10 is positioned at the center of the map.

[0031] The reason why the list on the list screen 370 does not include fire detectors 10 whose alert level is at or above the caution level is that, as mentioned above, fire detectors 10 whose alert level is at or above the caution level are displayed separately in an alarm list (not shown) and can therefore be easily identified from the alarm list.

[0032] (operation) 5 is a flowchart showing an example of map display processing in the integrated operation panel 30. For example, when a user wishes to monitor the detection value of a fire detector 10 installed on a certain floor, the user uses the operation unit 34 to specify the floor to be displayed and to instruct map display. This operation triggers the start of the map display processing.

[0033] In step S11, the acquisition unit 311 acquires the latest detection values ​​of all fire detectors 10 installed on the display target floor from the fire receiver 20. For example, if the display target floor is the first floor, the acquisition unit 311 acquires the latest detection values ​​of all fire detectors 10 installed on the first floor.

[0034] In step S12, the conversion unit 312 converts the detection values ​​acquired in step S11 into alert levels. For example, if the detection values ​​acquired in step S11 include the density of smoke detected by a smoke detector, the conversion unit 312 uses a conversion table to convert this smoke density into one of LV1 to 10. Also, if the detection values ​​acquired in step S11 include the temperature detected by a heat detector, the conversion unit 312 uses the conversion table to convert this temperature into one of LV1 to 10.

[0035] In step S13, the display control unit 313 causes the display unit 35 to display a map screen 350 in accordance with the alert level converted in step S12. For example, the display control unit 313 causes the display unit 35 to display the map screen 350 shown in FIG. 2. As shown in FIG. 2, the map screen 350 includes a bar graph 352. This allows the user to easily monitor the detection values ​​of the fire detectors 10 installed on the display target floor. For example, in the example shown in FIG. 2, the bar graph 352 of the fire detector 10 installed in office J1 indicates that the alert level of the detection value of this fire detector 10 is LV3, indicating that a minor abnormality has occurred.

[0036] 5, in step S14, the display control unit 313 determines whether the user has performed an operation related to the screen display. For example, if the user wants to check more accurate detection values ​​and their trends for a certain fire detector 10 displayed on the map screen 350, the user uses the operation unit 34 to click on the symbol 351 of that fire detector 10 included in the map screen 350, thereby selecting this symbol 351. When this operation is performed (the determination in step S14 is "symbol selection"), the process proceeds to step S15, and the trend history display process is started.

[0037] 6 is a flowchart showing an example of the trend history display process. In step S21, the acquisition unit 311 acquires the history of detection values ​​for a predetermined period of the fire detector 10 corresponding to the selected symbol 351 from the fire receiver 20. For example, when the symbol 351 of the fire detector 10 installed in the "toilet" shown in FIG. 2 is selected, the acquisition unit 311 acquires the history of detection values ​​for this fire detector 10 for a predetermined period of time.

[0038] In step S22, the display control unit 313 causes the display unit 35 to display a trend history screen 360 in accordance with the history of the detection values ​​acquired in step S21. For example, the display control unit 313 causes the display unit 35 to display the trend history screen 360 shown in FIG. 3 superimposed on the map screen 350. As shown in FIG. 3, the trend history screen 360 includes a trend graph 361. This allows the user to check more accurate detection values ​​and their trends of the fire detector 10 corresponding to the selected symbol 351.

[0039] When the user performs an operation to terminate the display of the trend history screen 360 using the operation unit 34, the trend history screen 360 is closed. This ends the processing for displaying the trend history, and the processing proceeds to step S17 shown in FIG.

[0040] Furthermore, in step S14 described above, if the user wishes to monitor not only a specific area but the entire area, for example, the user performs an operation to instruct list display using the operation unit 34. When this operation is performed (determination in step S14 is "list display instruction"), the process proceeds to step S16, where list display processing is started.

[0041] 7 is a flowchart showing an example of the list display process. In step S31, the display control unit 313 causes the display unit 35 to display a list screen 370 according to the latest detection values ​​acquired in step S11 described above. For example, the display control unit 313 causes the display unit 35 to display the list screen 370 shown in FIG. 4 superimposed on the map screen 350. As shown in FIG. 4, the list screen 370 includes a list of fire detectors 10 installed in the building that are in a quasi-normal state. This allows the user to identify fire detectors 10 that are not in a completely normal state, even though they have not yet reached the caution level.

[0042] In step S32, the display control unit 313 waits until one of the fire detectors 10 in a quasi-normal state included in the list on the list screen 370 is selected (determination in step S32 is NO). For example, if the user wants to check the fire detector 10 shown in FIG. 4 labeled "Fire detector 1st floor, section 2, no. 2, LV3" on the map, the user selects this fire detector 10 by clicking the button 371 corresponding to this fire detector 10 using the operation unit 34 (determination in step S32 is YES). When this operation is performed, the process proceeds to step S33.

[0043] In step S33, the display control unit 313 displays the map screen 350 on the display unit 35 so that the symbol 351 of the fire detector 10 selected in step S32 is located at the center of the map. For example, when the fire detector 10 installed in "Office J1" shown in FIG. 2 is selected, the display control unit 313 hides the list screen 370 and then displays a map of the floor on which the fire detector 10 is installed on the map screen 350. Furthermore, the display control unit 313 automatically scrolls the map screen 350 up and down or left and right so that the symbol 351 of the selected fire detector 10 is located at the center of the map. This ends the list display process, and the process proceeds to step S17 shown in FIG. 5.

[0044] Furthermore, in step S14 described above, if the user does not perform any operation related to the screen display (determination in step S14 is "no operation"), the process also proceeds to step S17.

[0045] In step S17, the acquisition unit 311 determines whether a predetermined time has elapsed since the previous acquisition of the detection value. If the predetermined time has not elapsed (determination in step S17 is NO), the process returns to step S14 described above, and the processes from step S14 onwards are repeated. For example, if the user wants to check more accurate detection values ​​and their trends for the fire detector 10 installed in "office J1" selected from the list shown in Fig. 5, the user may use the operation unit 34 to click and select the symbol 351 of the fire detector 10 included in the map screen 350 shown in Fig. 2, thereby displaying a trend history screen 360 for the fire detector 10 on the display unit 35.

[0046] On the other hand, if a predetermined time has elapsed since the previous detection value was acquired (the determination in step S17 is YES), the process returns to step S11 described above, and the processes from step S11 onward are repeated. As a result, the bar graph 352 and the like included in the map screen 350 are updated according to the latest detection value newly acquired in step S11.

[0047] Then, in step S14 described above, if the user performs an operation to end the map display using the operation unit 34 (determination in step S14 is "end of map display"), the map display process ends.

[0048] According to the above-described embodiment, the bar graph 352 is displayed on the map, making it possible to easily recognize minor changes in the detection values ​​of the fire detectors 10 installed on the display target floor. Furthermore, since the bar graph 352 is arranged alongside the symbol 351 of the fire detector 10 on the map, the user can check the detection values ​​of the fire detector 10 without performing any additional operations, unlike the trend history screen 360. Furthermore, minor changes in the detection values ​​of the fire detector 10 may occur constantly due to an inappropriate installation location of the fire detector 10, but by checking the bar graph 352, such fire detectors 10 can also be easily discovered. This allows appropriate measures to be taken, such as improving the installation location.

[0049] Furthermore, the bar graph 352 is displayed in a different color according to the alert level, making it easy to recognize the detection values ​​of the fire detectors 10. Furthermore, the background color of the alert area changes according to the color of the bar graph 352, making it easy to recognize the detection values ​​of the fire detectors 10 installed in the alert area. Furthermore, because the detection values ​​of the fire detectors 10 are converted into alert levels, even in a case where smoke detectors and heat detectors are mixed, it is possible to determine whether there is a slight abnormality in the detection values ​​using a common indicator. Furthermore, the list screen 370 displays a list of fire detectors 10 in a quasi-normal state, and when one of the fire detectors is selected, the map screen 350 is displayed so that the symbol 351 of that fire detector 10 is located at the center of the map, making it easy to recognize the location of fire detectors 10 that may have a slight abnormality in their detection values.

[0050] (Variation) The present invention is not limited to the above-described embodiment, and may be implemented by modifying it as in the following modifications. The following modifications may be used alone or in combination of two or more.

[0051] (Variation 1) In the above-described embodiment, the graph displayed on the map is not limited to the bar graph 352, but may be another graph. For example, the graph may be a gauge graph.

[0052] Fig. 8 is a diagram showing a display example of a map screen 380 according to this modified example. Similar to the map screen 350 shown in Fig. 2, the map screen 380 includes a map of the building floor to be displayed and symbols 351 of the fire detectors 10 installed on the floor to be displayed. However, the map screen 380 includes a circular gauge graph 381 instead of the bar graph 352 shown in Fig. 2. The circular gauge graph 381 is arranged to surround the symbol 351.

[0053] 8 is triple-layered, with the first layer representing levels 1 to 4, the second layer representing levels 5 to 8, and the third layer representing levels 9 to 10. In circular gauge graph 381, the gauge bar extends clockwise from the top center of the circumference as the alert level increases. For example, the background color of the first layer of circular gauge graph 381 may be light green and the gauge bar dark green, the background color of the second layer may be light yellow and the gauge bar dark yellow, and the background color of the third layer may be light red and the gauge bar dark red.

[0054] The fire detector 10 installed in the "toilet" shown in Figure 8 has an alert level of LV9, so for the first level, a dark green gauge bar goes around once, for the second level, a dark yellow gauge bar goes around once, and for the third level, a dark red gauge bar extends a quarter of the way around. The fire detector 10 installed in the "office J1" shown in Figure 8 has an alert level of LV3, so for the first level, a dark green gauge bar extends three-quarters of the way around. For the second and third levels, the background color remains, and no gauge bar is displayed. The fire detector 10 installed in the "office J2" shown in Figure 8 has an alert level of LV5, so for the first level, a dark green gauge bar goes around once, and for the second level, a dark yellow gauge bar extends a quarter of the way around. For the third level, the background color remains, and no gauge bar is displayed.

[0055] In another example, the graph displayed on the map may be a semi-dornut-shaped gauge graph, such as a speedometer in a car, positioned to surround the top half of the symbol 351.

[0056] According to this modification, the gauge graph is arranged around the symbol 351 of the fire detector 10, making it visually easy to know which fire detector 10 the graph corresponds to.

[0057] (Variation 2) In the above-described embodiment, the user can change the scale of the map on the map screen 350 by operating the operation unit 34. At this time, the display of the bar graph 352 may be changed depending on the scale of the map. For example, when the map is reduced, the characters indicating the caution level, fire level, and alert level included in the bar graph 352 may be hidden to make the bar graph 352 easier to see. Furthermore, depending on the scale of the map on the map screen 350, the number of alert levels indicated by the bar graph 352 may be changed to a number of levels corresponding to the scale of the map. For example, when the map is reduced, the number of alert levels indicated by the bar graph 352 may be reduced from 10 levels to a total of five levels, including two quasi-normal states, two caution states, and one fire state, or to a total of three levels, including one quasi-normal state, one caution state, and one fire state, to make the bar graph 352 easier to see. This modification prevents the bar graph 352 from becoming difficult to see when the map is reduced.

[0058] (Variation 3) In the above-described embodiment, the bar graphs 352 may be hidden depending on the scale of the map on the map screen 350. For example, as the map is reduced, the bar graphs 352 may be hidden in descending order of alert level. Alternatively, when the map is reduced, only the bar graph 352 with the highest alert level may be displayed, and the remaining bar graphs 352 may be hidden. This modification makes it possible to prevent necessary information from becoming difficult to view when the map is reduced.

[0059] (Variation 4) In the above-described embodiment, the detection values ​​of the fire detectors 10 do not necessarily have to be converted into alert levels. The graph displayed on the map may show the detection values ​​of the fire detectors 10 themselves. Even in this modification, it is possible to easily recognize minor abnormalities in the detection values ​​of all fire detectors 10 installed on the display target floor.

[0060] (Variation 5) In the above-described embodiment, the fire receiver 20 may display a map screen 350, a trend history screen 360, and a list screen 370 in addition to or instead of the general operation panel 30. In this modification, the fire receiver 20, like the general operation panel 30, includes a control unit 31, a memory unit 32, a communication unit 33, an operation unit 34, and a display unit 35, and the control unit 31 executes a program stored in the memory unit 32, thereby functioning as an acquisition unit 311, a conversion unit 312, and a display control unit 313. Even in this modification, minor changes in the detection values ​​of the fire detector 10 can be easily recognized.

[0061] (Variation 6) In the above-described embodiment, the configurations of the disaster prevention system 1, the fire detector 10, the fire receiver 20, and the general operation panel 30 are not limited to the above-described examples, and may be configured to include one or more of the above-described devices or parts, or may be configured to exclude some of the devices or parts. Furthermore, the operations of the disaster prevention system 1, the fire detector 10, the fire receiver 20, and the general operation panel 30 are not limited to the above-described examples, and the order of their operation procedures may be changed or some operation procedures may be omitted, as long as there is no contradiction.

[0062] (Variation 7) Another aspect of the present invention may provide a method having operational steps performed in at least one of the disaster prevention system 1, the fire detector 10, the fire receiver 20, and the integrated control panel 30. Furthermore, yet another aspect of the present invention may provide a program executed in the fire detector 10, the fire receiver 20, or the integrated control panel 30. This program may be provided by being stored in a computer-readable recording medium, or may be provided by downloading via the Internet or the like. [Explanation of symbols]

[0063] 1: Disaster prevention system, 10: Fire detector, 20: Fire receiver, 30: General operation panel, 31: Control unit, 32: Memory unit, 33: Communication unit, 34: Operation unit, 35: Display unit, 311: Acquisition unit, 312: Conversion unit, 313: Display control unit

Claims

1. an acquisition unit that acquires a detection value of a fire detector; a display unit that displays, on a map of each floor of the building, symbols indicating the positions of the fire detectors and a graph corresponding to the detection values ​​of the fire detectors side by side; A disaster prevention system equipped with:

2. The display unit displays the graph in different colors depending on the detected values. The disaster prevention system according to claim 1 .

3. The display unit changes the background color of the area on the map where the fire detector is installed to a color that is the same hue as the color of the graph corresponding to the detection value but is lighter than the color of the graph. The disaster prevention system according to claim 2 .

4. The fire detector includes a smoke detector and a heat detector, A conversion unit converts the detection value of the smoke detector and the detection value of the heat detector into an alert level, The display unit displays a graph showing the alert level. The disaster prevention system according to claim 1 .

5. The display unit displays a list of fire detectors whose detection value is less than a predetermined value, and when a fire detector is selected from the list, the display unit displays the map so that the symbol indicating the location of the selected fire detector is located at the center of the map. The disaster prevention system according to claim 1 .

6. The graph is a gauge graph that surrounds at least a portion of the symbol. The disaster prevention system according to claim 1 .

Images