Disaster prevention system and control panel

Abstract

The fire detector is provided with: a right-side fire detection unit that detects a fire in a monitoring section located on the right side when facing the fire detector; and a left-side fire detection unit that detects a fire in the monitoring section located on the left side when facing the fire detector, and the fire detector transmits, to the disaster prevention reception disc (10), a fire signal including operation information indicating a subject of the right-side fire detection unit and the left-side fire detection unit that has detected the fire in response to the detection of the fire. When the disaster prevention receiving disc (10) receives a fire signal, the disaster prevention receiving disc (10) selects a specified number of water discharge sections according to action information contained in the fire signal, and controls the water discharge equipment to discharge water to the selected water discharge section.

Description

Technical Field

[0001] The present invention relates to a technique for selecting water discharge zones based on fire detection. Background Art

[0002] Patent document 1 describes the following tunnel disaster prevention system: the water discharge zone is determined based on the traffic direction, ventilation direction and report signal level of the fire detector in the detection zone of the tunnel, and the water spray automatic valve corresponding to the water discharge zone of the determined upper two zones is controlled to discharge water.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 10-248951 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] However, in the technology described in Patent Document 1, a water discharge zone far from a fire source is sometimes selected, and water cannot be sufficiently discharged to the fire source.

[0008] The purpose of the present invention is to select a more appropriate water discharge zone.

[0009] Means for solving problems

[0010] One embodiment of the present invention provides a disaster prevention system comprising: a plurality of fire detectors; and a control panel, wherein the plurality of fire detectors respectively comprise: a right-side fire detection unit for detecting a fire in a monitoring partition located on the right side when facing the fire detector; a left-side fire detection unit for detecting a fire in a monitoring partition located on the left side when facing the fire detector; and a sending unit for sending, based on the detection of the fire, a fire signal including information indicating the subject of the fire detected by the right-side fire detection unit and the left-side fire detection unit to the control panel, the control panel comprising: a selecting unit for selecting a specified number of water discharge partitions based on the information included in the fire signal when receiving the fire signal; and a water discharge control unit for controlling a water discharge device so that the water discharge device discharges water to the water discharge partition selected by the selecting unit.

[0011] Effects of the Invention

[0012] According to the present invention, a more appropriate water discharge zone can be selected. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram showing an example of the configuration of a disaster prevention system according to an embodiment.

[0014] Figure 2 This is a diagram showing an example of the structure of a fire detector.

[0015] Figure 3 This is a diagram showing an example of the structure of a disaster prevention receiving tray.

[0016] Figure 4 This is a sequence diagram showing an example of the operation of the disaster prevention system.

[0017] Figure 5 This is a diagram illustrating an example of a method for selecting a drainage zone.

[0018] Figure 6 This is a diagram illustrating an example of reselection of the water discharge zone in this modification.

[0019] Figure 7 This is a diagram illustrating another example of reselection of the water discharge zone in this modification. DETAILED DESCRIPTION

[0020] 1. Structure

[0021] Figure 1 This diagram shows an example of the configuration of a disaster prevention system 1 according to this embodiment. Disaster prevention system 1 is installed in a tunnel and releases water when a fire occurs within the tunnel. Disaster prevention system 1 includes a disaster prevention receiving tray 10, multiple fire detectors 20, and multiple water spray devices 30. The multiple fire detectors 20 are installed at predetermined intervals, for example, 50m apart, along the length of the tunnel. The tunnel is divided into multiple monitoring zones arranged along the length of the tunnel at these predetermined intervals. Similarly to the multiple fire detectors 20, the multiple water spray devices 30 are also installed at predetermined intervals, for example, 50m apart, along the length of the tunnel. The tunnel is divided into multiple water release zones arranged along the length of the tunnel at these predetermined intervals.

[0022] Disaster prevention system 1 employs an R-type transmission method. Multiple fire detectors 20 are connected to a disaster prevention receiving panel 10 via signal lines 40. Furthermore, relay amplifiers may be connected to signal lines 40 at predetermined intervals, for example, every 800 m. Furthermore, multiple water spray devices 30 are connected to the disaster prevention receiving panel 10 via signal lines 50.

[0023] The disaster prevention receiving panel 10 centrally monitors the disaster prevention system 1. Upon receiving a fire signal from the fire detector 20, the disaster prevention receiving panel 10 controls the water spraying device 30 to release water to the fire-prone drainage zone. The disaster prevention receiving panel 10 is an example of a control panel of the present invention.

[0024] The fire detector 20 detects fires in the monitored zones and transmits fire signals to the disaster prevention receiving panel 10. The fire detector 20 independently detects fires in the monitored zones to the right of the fire detector 20 and to the left of the fire detector 20. Furthermore, the fire detector 20 dually monitors adjacent fire detectors 20 and monitored zones. For example, the fire detector 20 monitors the monitored zones to the right of the fire detector 20 when facing the fire detector 20, along with the fire detector 20 adjacent to the right. The fire detector 20 monitors the monitored zones to the left of the fire detector 20 when facing the fire detector 20, along with the fire detector 20 adjacent to the left.

[0025] The water spray equipment 30, for example, comprises an automatic valve assembly and a water spray nozzle, and releases mist water into the water discharge sections in the event of a fire. In the disaster prevention system 1, the number of water discharge sections capable of simultaneous water discharge is predetermined. Therefore, the water spray equipment 30 simultaneously discharges water into a predetermined number of water discharge sections continuous along the longitudinal direction of the tunnel. Here, the predetermined number is two. However, a number other than two is acceptable. The water spray equipment 30 is an example of the water discharge equipment of the present invention.

[0026] Figure 2 : is a diagram showing an example of the structure of the fire detector 20. The fire detector 20 includes a control unit 21, a storage unit 22, a right fire detection unit 23, a left fire detection unit 24, and a communication unit 25. The components of the fire detector 20 are connected via one or more buses.

[0027] The control unit 21 is, for example, one or more processors such as CPUs, and controls the various components of the fire detector 20. The storage unit 22 is, for example, a memory such as RAM or EEPROM, and stores various data including programs for implementing the functions of the fire detector 20 and the address of the fire detector 20. The address is information that uniquely identifies the fire detector 20.

[0028] The right fire detection unit 23 includes, for example, a light-receiving element, and detects fires in the monitoring section located on the right side when facing the fire detector 20. The left fire detection unit 24 includes, for example, a light-receiving element, and detects fires in the monitoring section located on the left side when facing the fire detector 20. The right fire detection unit 23 and the left fire detection unit 24 can detect fires by, for example, detecting flickering infrared light emitted from a flame, but this is not limited to this method and other methods are also possible.

[0029] The communication unit 25 transmits and receives signals with the disaster prevention receiving panel 10 via the signal line 40. For example, when at least one of the right fire detection unit 23 and the left fire detection unit 24 detects a fire, the communication unit 25 transmits a fire signal to the disaster prevention receiving panel 10. This fire signal includes an address and action information. The address is read from the storage unit 22 and used. The action information indicates which of the right fire detection unit 23 and the left fire detection unit 24 detected the fire. The action information includes an identifier of the right fire detection unit 23 or the left fire detection unit 24 that detected the fire. The communication unit 25 is an example of a transmitting unit in the present invention.

[0030] Figure 3 1 is a diagram showing an example of the structure of the disaster prevention receiving panel 10. The disaster prevention receiving panel 10 includes a control unit 11, a storage unit 12, a communication unit 13, an operation unit 14, a display unit 15, and a sound output unit 16. The various components of the disaster prevention receiving panel 10 are connected via one or more buses.

[0031] The control unit 11, for example, is a processor such as one or more CPUs, and controls the various components of the disaster prevention receiving panel 10. The storage unit 12, for example, is a memory such as RAM or EEPROM, and stores programs and various data used to implement the functions of the disaster prevention receiving panel 10. The communication unit 13 transmits and receives signals to and from the fire detector 20 and the water spray device 30. For example, the communication unit 13 receives a fire signal from the fire detector 20 and sends a control signal to the water spray device 30. The communication unit 13 is an example of a receiving unit of the present invention.

[0032] The operation unit 14 is, for example, an operation button, and is used to operate the disaster prevention receiving disk 10. The display unit 15 is, for example, a liquid crystal display, and displays various information. The sound output unit 16 is, for example, a speaker, and outputs various sounds including alarm sounds.

[0033] The control unit 11 functions as a selection unit 111 and a water discharge control unit 112. These functions are realized by the control unit 11 executing a program stored in the storage unit 12 to perform calculations or control each unit of the disaster prevention receiving panel 10.

[0034] Based on the action information of the fire signal received by the communication unit 13, the selection unit 111 selects a predetermined number of continuous water drainage zones along the longitudinal direction of the tunnel. More specifically, based on the positional relationship between the monitoring zones where the fire was detected by the right fire detection unit 23 or the left fire detection unit 24, as indicated by the action information, and the direction from which the fire was detected by the respective fire detection units, the selection unit 111 determines the location of the fire source and selects the water drainage zone that contains the location of the fire source. For example, if adjacent fire detectors 20 detect fires in overlapping monitoring zones from different directions, the selection unit 111 determines that a fire source exists within the monitoring zone and selects the water drainage zone that overlaps with the monitoring zone. As another example, if the right fire detection unit 23 and the left fire detection unit 24 of the same fire detector 20 detect a fire, the selection unit 111 determines that a fire source exists near the front of the fire detector 20 and selects the water drainage zone that contains the fire source.

[0035] The water discharge control unit 112 controls the water spray device 30 provided in the water discharge section selected by the selection unit 111 among the plurality of water spray devices 30 to discharge mist water toward the selected water discharge section.

[0036] 2. Action

[0037] Figure 4 This is a timing diagram illustrating an example of the operation of the disaster prevention system 1. When a fire occurs, in step S11, the fire detector 20 detects the fire using at least one of the right fire detection unit 23 and the left fire detection unit 24, and transmits a fire signal to the disaster prevention receiving panel 10 via the communication unit 25. Upon receiving the fire signal from the fire detector 20, the disaster prevention receiving panel 10 receives the fire signal via the communication unit 13. Upon receiving the fire signal, in step S12, the selection unit 111 of the disaster prevention receiving panel 10 selects two consecutive drainage zones along the length of the tunnel from among the multiple drainage zones based on the action information contained in the fire signal.

[0038] When a water discharge zone is selected, in step S13, the water discharge control unit 112 of the disaster prevention receiving panel 10 transmits a control signal to the water spray device 30 located in the selected water discharge zone to initiate water discharge. When the control signal is transmitted from the disaster prevention receiving panel 10, the water spray device 30 receives the control signal. Upon receiving the control signal, in step S14, the water spray device 30 releases mist water into the water discharge zone in accordance with the control signal. This water discharge suppresses the fire and prevents its spread.

[0039] Figure 5This figure illustrates an example method for selecting drainage zones. In this example, fire detectors 20A, 20B, 20C, and 20D are arranged in order from left to right along the length of the tunnel (left-right in the figure). Therefore, fire detector 20B is positioned adjacent to fire detector 20A on the right side when facing fire detector 20A. Similarly, fire detectors 20C and 20D are positioned adjacent to fire detectors 20B and 20C on the right side when facing fire detectors 20B and 20C, respectively. Fire detector 20C is an example of the first fire detector of the present invention. Fire detector 20D is an example of the second fire detector of the present invention.

[0040] The right fire detection unit 23 of fire detector 20A and the left fire detection unit 24 of fire detector 20B monitor the same monitoring zone 61. The right fire detection unit 23 of fire detector 20B and the left fire detection unit 24 of fire detector 20C monitor the same monitoring zone 62. The right fire detection unit 23 of fire detector 20C and the left fire detection unit 24 of fire detector 20D monitor the same monitoring zone 63. However, if the flames of the fire source are large, the right fire detection unit 23 of each fire detector 20 may detect a fire in another monitoring zone to the right of its own monitoring zone. Similarly, if the flames of the fire source are large, the left fire detection unit 24 of each fire detector 20 may detect a fire in another monitoring zone to the left of its own monitoring zone. Furthermore, the monitoring zones of the right fire detection unit 23 and the left fire detection unit 24 of the same fire detector 20 may partially overlap.

[0041] Drainage zone 71 overlaps with the left half of monitoring zone 61. Drainage zone 72 overlaps with the right half of monitoring zone 61 and the left half of monitoring zone 62. Drainage zone 73 overlaps with the right half of monitoring zone 62 and the left half of monitoring zone 63. Drainage zone 74 overlaps with the right half of monitoring zone 63.

[0042] Here, let's assume that the right fire detection unit 23 of fire detector 20B, the right fire detection unit 23 of fire detector 20C, and the left fire detection unit 24 of fire detector 20D have detected a fire. In this case, in step S11, fire detector 20B transmits a fire signal containing the address of fire detector 20B and action information indicating that the right fire detection unit 23 has detected a fire to the disaster prevention receiving panel 10. Furthermore, fire detector 20C transmits a fire signal containing the address of fire detector 20C and action information indicating that the right fire detection unit 23 has detected a fire to the disaster prevention receiving panel 10. Furthermore, fire detector 20D transmits a fire signal containing the address of fire detector 20D and action information indicating that the left fire detection unit 24 has detected a fire to the disaster prevention receiving panel 10.

[0043] In step S12 described above, two continuous drainage zones along the length of the tunnel are selected based on the operational information contained in these fire signals. Based on the operational information of the fire signals received from fire detectors 20B and 20C, the right fire detection unit 23 of fire detector 20B detects a fire in monitoring zone 62. However, the left fire detection unit 24 of fire detector 20C does not detect a fire in monitoring zone 62. This indicates that there is a fire source to the right of fire detector 20B, but not to the left of fire detector 20C. In other words, there is no fire source in monitoring zone 62, but a fire source to the right of monitoring zone 62. For example, if there is a fire source with larger flames to the right of monitoring zone 62, or if infrared rays emitted from a fire source to the right of monitoring zone 62 are reflected and enter the right fire detection unit 23 of fire detector 20B, the right fire detection unit 23 of fire detector 20B will detect a fire, but the left fire detection unit 24 of fire detector 20C will not.

[0044] On the other hand, based on the operational information of the fire signals received from fire detectors 20C and 20D, the right fire detection unit 23 of fire detector 20C and the left fire detection unit 24 of fire detector 20D both detect fire in monitoring zone 63. This indicates that a fire source exists in monitoring zone 63, which is on the right side when facing fire detector 20C and on the left side when facing fire detector 20D. Thus, when adjacent fire detectors 20C and 20D detect a fire in the same monitoring zone 63 from different directions, it is determined that a fire source exists in monitoring zone 63. This monitoring zone 63 overlaps with water discharge zones 73 and 74. Therefore, water discharge zones 73 and 74 are selected.

[0045] In step S13, a control signal for starting water discharge is sent from the disaster prevention receiving tray 10 to the water spray equipment 30 installed in the water discharge section 73 and the water spray equipment 30 installed in the water discharge section 74. In step S14, the water spray equipment 30 discharges mist water into the water discharge sections 73 and 74.

[0046] Assume that Figure 5In the example shown, if the drainage zones are selected based on the wind direction within the tunnel without using action information, for example, if the left side in the figure is upwind, drainage zones 72 and 73, two of drainage zones 72 and 74 located on the upwind side, overlapping with monitoring zones 62 and 63, may be selected. If drainage zones 72 and 73 are selected, water will be discharged to drainage zone 73, but not to drainage zone 74. This may result in insufficient drainage of the fire source in monitoring zone 63. In contrast, according to the above-described embodiment, more appropriate drainage zones 73 and 74 are selected based on action information, allowing sufficient drainage of the fire source in monitoring zone 63.

[0047] 3. Modifications

[0048] The present invention is not limited to the above-described embodiment, and may be implemented by modifying the following modifications. The following modifications may be used alone or in combination of two or more.

[0049] (1) Modification 1

[0050] In the above-described embodiment, the fire source may move, for example, due to the movement of a vehicle on fire. Therefore, if the action information indicates that the fire source has moved, the water discharge zone can be changed to discharge water to the moving fire source. This is because one of the purposes of the water spray equipment 30 is to protect the main body of concrete forming the tunnel from heat. Therefore, if the fire source moves, it is considered effective to change the water discharge zone to follow the movement of the fire source.

[0051] Figure 6 This is a diagram illustrating an example of reselection of the drainage zone in this modification. Figure 5 The same structure is omitted for explanation. In this example, a fire detector 20E is arranged adjacent to the fire detector 20D on the right side when facing the fire detector 20D. The fire detector 20E is an example of the third fire detector of the present invention. Here, it is assumed that first, at time t1, similarly to the above embodiment, the right fire detection unit 23 of the fire detector 20B, the right fire detection unit 23 of the fire detector 20C, and the left fire detection unit 24 of the fire detector 20D detect a fire. Based on the detection of these fires, as shown in FIG. Figure 6 As shown in (a), the drainage zones 73 and 74 are selected, and the drainage zones 73 and 74 are drained.

[0052] Then, at time t2, if Figure 6As shown in (b), it is further assumed that the right fire detection unit 23 of the fire detector 20D and the left fire detection unit 24 of the fire detector 20E detect a fire. In this modification, the detection is repeated at a predetermined time interval, for example, 1 minute intervals. Figure 4 The processes of steps S12 to S14 are shown. In step S12, two continuous water discharge sections along the longitudinal direction of the tunnel are selected again based on the action information included in the fire signals received from the fire detectors 20B, 20C, 20D, and 20E.

[0053] Based on the fire signal activity information received from fire detectors 20D and 20E, the right fire detection unit 23 of fire detector 20D and the left fire detection unit 24 of fire detector 20E detected a fire in monitoring zone 64. This monitoring zone 64 is adjacent to monitoring zone 63, which was previously determined to have a fire source. This indicates that the fire source has moved from monitoring zone 63 to monitoring zone 64. Therefore, this time, it is determined that a fire source exists in monitoring zone 64. This monitoring zone 64 overlaps with water discharge zones 74 and 75, so water discharge zones 74 and 75 are selected this time.

[0054] In step S13, a control signal for stopping water discharge is sent from the disaster prevention receiving tray 10 to the water spray device 30 located in the water discharge zone 73 in order to discharge water to the newly selected water discharge zone 75, replacing the previously selected water discharge zone 73 that was not selected this time. Furthermore, a control signal for starting water discharge is sent from the disaster prevention receiving tray 10 to the water spray device 30 located in the water discharge zone 75. In step S14, the water spray device 30 located in the water discharge zone 73 stops discharging water to the water discharge zone 73. Meanwhile, the water spray device 30 located in the water discharge zone 75 releases mist water to the water discharge zone 75. According to this modified example, if the fire source moves, a more appropriate water discharge zone 74 or 75 is reselected to follow the movement of the fire source, and the water discharge target is changed to the water discharge zone 74 or 75, thereby enabling sufficient water discharge to the moving fire source.

[0055] (2) Modification 2

[0056] When the water discharge zone is selected again as in the above-mentioned modification 1, if the action information indicates that the fire source has not moved, the water discharge zone to which the water is to be discharged may not be changed. Figure 7 This is another example of selecting the drainage zone again in this modification. Figure 6 Here, it is assumed that first, at time t1, the right fire detection unit 23 of the fire detector 20B, the right fire detection unit 23 of the fire detector 20C, and the left fire detection unit 24 of the fire detector 20D detect a fire, as in the above embodiment. Based on the detection of these fires, as shown in FIG. Figure 7 As shown in (a), the drainage zones 73 and 74 are selected, and the drainage zones 73 and 74 are drained.

[0057] Then, at time t2, if Figure 7 As shown in (b), the left fire detection unit 24 of fire detector 20E further detects a fire. In this modified example, the processes of steps S12 to S14 are repeated at predetermined time intervals, for example, every minute. In step S12, two consecutive water discharge sections along the longitudinal direction of the tunnel are again selected based on the action information contained in the fire signals received from fire detectors 20B, 20C, 20D, and 20E.

[0058] Based on the action information from the fire signals received from fire detectors 20D and 20E, the left fire detection unit 24 of fire detector 20E detects a fire in monitoring zone 64. However, the right fire detection unit 23 of fire detector 20D does not detect a fire in monitoring zone 64. This indicates that there is a fire source on the left side when facing fire detector 20E, but not on the right side when facing fire detector 20D. In other words, there is no fire source in monitoring zone 64, and the flame of the fire source in monitoring zone 63 has increased. Therefore, this time, it is determined that there is a fire source in monitoring zone 63. If there is a fire source in monitoring zone 63, there is no need to change the water release zones 73 and 74 to be released, so the processing from step S13 onwards is skipped. Thus, water is continuously released to water release zones 73 and 74. According to this modified example, even if the fire source does not move but its flame increases, sufficient water can be released to the fire source.

[0059] (3) Modification 3

[0060] In the above embodiment, if the location of the fire source cannot be determined based on the motion information alone, the water discharge zone may be selected based on the time when the fire detector 20 detects the fire in addition to the motion information. Figure 5 In the illustrated example, the right fire detection unit 23 of the fire detector 20B, the left fire detection unit 24 of the fire detector 20C, and the left fire detection unit 24 of the fire detector 20D detect a fire. The right fire detection unit 23 of the fire detector 20B and the left fire detection unit 24 of the fire detector 20C detect the fire from the same monitoring section 62. Furthermore, the right fire detection unit 23 of the fire detector 20C and the left fire detection unit 24 of the fire detector 20D detect the fire in the monitoring section 63 from the same position. In this case, it is impossible to determine whether the fire source exists in the monitoring section 62 or the monitoring section 63 based solely on the action information.

[0061] Therefore, when the control unit 11 of the disaster prevention receiving panel 10 receives a fire signal from fire detectors 20B, 20C, and 20D, it stores the date and time of receipt of the fire signal in the storage unit 12 as the actuation date and time of the corresponding fire detector 20. This actuation date and time indicates the time when the fire detector 20 detected the fire. The closer the fire source, the earlier the fire detector 20 detects the fire. Therefore, for example, if the actuation date and time of the right fire detection unit 23 of fire detector 20C and the left fire detection unit 24 of fire detector 20D are earlier than the actuation date and time of the right fire detection unit 23 of fire detector 20B and the left fire detection unit 24 of fire detector 20C, it is determined that a fire source exists in the monitoring zone 63. Then, similar to the above-mentioned embodiment, the water discharge zones 73 and 74 that overlap with the monitoring zone 63 are selected. According to this modified example, a more appropriate water discharge zone is selected based on the actuation information and the actuation date and time, thereby enabling sufficient water discharge to the fire source.

[0062] (4) Modification 4

[0063] In the above embodiment, fire detectors 20 do not necessarily need to monitor adjacent fire detectors 20 and monitoring zones. For example, the monitoring zones monitored by one fire detector 20 and those monitored by another adjacent fire detector 20 may only partially overlap, or they may be adjacent without overlapping. In this variation, if adjacent fire detectors 20 detect fires in overlapping or adjacent monitoring zones from different directions, the selection unit 111 determines that a fire source exists in the overlapping or adjacent monitoring zones and selects the water discharge zone that overlaps with these monitoring zones. Even with this variation, a more appropriate water discharge zone is selected based on the action information, enabling sufficient water discharge to the fire source.

[0064] (5) Modification 5

[0065] In the above-mentioned embodiment, the disaster prevention receiving panel 10 can also transmit operational information to an external device located in the control room. A monitor is stationed in the control room. In the event of a fire in the tunnel, the monitor can control the water spray system 30. By observing the operational information displayed on the external device, the monitor can control the water spray system 30 to release water to the most appropriate zones.

[0066] (6) Modification 6

[0067] While the above embodiment describes an example in which the present invention is applied to a disaster prevention system 1 employing an R-type transmission method, the present invention can also be applied to a disaster prevention system employing a P-type transmission method (hereinafter referred to as a "P-type disaster prevention system"). In a P-type disaster prevention system, the closer to the fire source, the shorter the pulse interval of the fire signal. Therefore, in a P-type disaster prevention system, two water discharge zones can be selected that overlap with the monitoring zones monitored by fire detectors, which are the sources of two higher-level fire signals with shorter pulse intervals. This modification also allows more appropriate water discharge zones to be selected in the P-type disaster prevention system, enabling sufficient water discharge to the fire source.

[0068] (7) Modification 7

[0069] In the above embodiment, the present invention can also be applied to a disaster prevention system installed in a place other than a tunnel. In such a disaster prevention system, a water spraying device such as a sprinkler can be used instead of the water spraying device 30, and a control panel such as a receiver can be used instead of the disaster prevention receiving panel 10.

[0070] (8) Modification 8

[0071] In the above embodiment, the configurations of the disaster prevention system 1, the disaster prevention receiving tray 10, the fire detector 20, and the water spray equipment 30 are not limited to the examples described above. The disaster prevention system 1, the disaster prevention receiving tray 10, the fire detector 20, and the water spray equipment 30 may be configured to include one or more of the aforementioned devices or components, or may be configured to exclude some of the devices or components. Furthermore, the operation of the disaster prevention system 1, the disaster prevention receiving tray 10, the fire detector 20, and the water spray equipment 30 is not limited to the examples described above. The operational steps of the disaster prevention system 1, the disaster prevention receiving tray 10, the fire detector 20, and the water spray equipment 30 may be reversed, or some steps may be omitted, as long as no inconsistency exists.

[0072] (9) Modification 9

[0073] Another aspect of the present invention may provide a method having steps for performing an action in at least one of the disaster prevention system 1, the disaster prevention receiving disk 10, the fire detector 20, and the water spray device 30. Furthermore, another aspect of the present invention may provide a program executed in the disaster prevention receiving disk 10 or the fire detector 20. This program may be provided by being stored in a computer-readable recording medium or by downloading it via the Internet or the like.

[0074] Label Description

[0075] 1: Disaster prevention system; 10: Disaster prevention receiving panel; 11: Control unit; 12: Storage unit; 13: Communication unit; 14: Operation unit; 15: Display unit; 16: Sound output unit; 20: Fire detector; 21: Control unit; 22: Storage unit; 23: Right-side fire detection unit; 24: Left-side fire detection unit; 25: Communication unit; 30: Water spray equipment; 111: Selection unit; 112: Water release control unit.

Claims

1. A disaster prevention system comprising: multiple fire detectors; and Control panel, The plurality of fire detectors respectively include: a right fire detection unit that detects a fire in a surveillance zone located on the right side when facing the fire detector; a left fire detection unit that detects a fire in a surveillance zone located on the left side when facing the fire detector; as well as a transmitting unit that transmits a fire signal including information indicating which of the right fire detection unit and the left fire detection unit detected the fire to the control panel based on the detection of the fire, The control panel has: a selection unit, which, upon receiving the fire signal, selects a predetermined number of water discharge zones based on the information contained in the fire signal; and The water discharge control unit controls the water discharge equipment to discharge water to the water discharge section selected by the selection unit.

2. The disaster prevention system according to claim 1, wherein: The selection unit determines the location of the fire source based on the positional relationship between the monitoring zones where the subject detected the fire and the direction in which the subject detected the fire, as indicated by the information, and selects a water discharge zone including the location of the fire source.

3. The disaster prevention system according to claim 1, wherein: The plurality of fire detectors include a first fire detector and a second fire detector adjacent to the first fire detector on the right side when facing the first fire detector. When the information indicates that the right fire detection unit of the first fire detector and the left fire detection unit of the second fire detector have detected the fire, the selection unit selects the water discharge zone that overlaps with the right monitoring zone of the first fire detector and the left monitoring zone of the second fire detector.

4. The disaster prevention system according to claim 3, wherein: The plurality of fire detectors further include a third fire detector adjacent to the second fire detector on the right side when facing the second fire detector, After the selection unit has selected the water discharge section overlapping with the right monitoring section of the first fire detector and the left monitoring section of the second fire detector, if the information indicates that the right fire detection unit of the second fire detector and the left fire detection unit of the third fire detector have detected the fire, the selection unit selects a new water discharge section overlapping with the right monitoring section of the second fire detector and the left monitoring section of the third fire detector. When the new water discharge section is selected, the water discharge control unit controls the water discharge equipment to discharge water to the new water discharge section.

5. The disaster prevention system according to claim 1, wherein: The selection unit selects the water discharge zone according to the information and the time when the main body detects the fire.

6. A control panel comprising: a receiving unit that receives a fire signal from a fire detector based on fire detection, the fire detector including a right fire detection unit for detecting the fire in a surveillance zone located on the right side when facing the fire detector, and a left fire detection unit for detecting the fire in a surveillance zone located on the left side when facing the fire detector, the fire signal including information indicating which of the right fire detection unit and the left fire detection unit detected the fire; a selection unit, which selects a specified number of water discharge zones according to the information contained in the fire signal when the receiving unit receives the fire signal; as well as The water discharge control unit controls the water discharge equipment to discharge water to the water discharge section selected by the selection unit.

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