Fire prevention system, fire prevention control method, and program

Abstract

To execute appropriate fire fighting according to structural features of each part of a fire prevention object.SOLUTION: A fire prevention system includes: a sensor being provided in correspondence with each of predetermined detection object ranges in a fire prevention object capable of detecting a predetermined event in a corresponding detection object range; a fire extinguisher provided in correspondence with each of predetermined discharge object ranges in the fire prevention object, with specifications of discharge of a fire extinguishing agent according to structural features of the corresponding discharge object range; a fire-related situation determination unit for determining a fire-related situation of each of the detection object ranges in the fire prevention object on the basis of a result of the detection by the sensor; and a fire prevention control unit for executing control so that discharge of the fire extinguishing agent is executed by the fire extinguisher as an operation object provided in the discharge object range corresponding to a fire extinguishing object range set on the basis of the fire-related situation of each of the detection object ranges determined by the fire-related situation determination unit.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fire prevention system, a fire prevention control method, and a program. [Background technology]

[0002] A technology is known in which the location of a fire is identified using backscattered light from a temperature-sensing optical fiber cable, and a fire extinguishing agent is released from a spray head located at the identified fire location (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-107369 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, when targeting a building designated as a cultural property for fire prevention, unlike an ordinary house, it is necessary to carry out effective firefighting while also taking into consideration the need to minimize the damage to the value of the cultural property. In other words, when it comes to fire prevention, it is sometimes necessary to ensure that firefighting is carried out appropriately according to the structural characteristics of each part of the property.

[0005] The present invention has been made in view of the above circumstances, and aims to enable fire to be extinguished appropriately in accordance with the structural characteristics of each part of a fire prevention object. [Means for solving the problem]

[0006] One aspect of the present invention for solving the above-mentioned problems includes a fire extinguisher provided in a fire prevention object corresponding to each predetermined detection target range and capable of detecting a predetermined event in the corresponding detection target range; a fire extinguisher provided in a predetermined release target range in the fire prevention object corresponding to each predetermined release target range and having specifications for releasing an extinguishant according to the structural characteristics of the corresponding release target range; a fire-related situation determination unit that determines a fire-related situation for each detection target range in the fire prevention object based on the detection results of the sensors; and a fire protection control unit that controls the release of an extinguishant by an operating fire extinguisher provided in a release target range corresponding to the fire extinguishing target range set based on the fire-related situation for each detection target range determined by the fire-related situation determination unit. The fire prevention object is set to a priority within a predetermined priority setting range, and the fire prevention control unit sets the fire extinguishing object range so that the priority setting range includes a priority above a certain level according to the amount of extinguishing agent stored in the fire extinguishing device. It is a fire protection system.

[0007] One aspect of the present invention is a fire prevention control method for a fire prevention system including sensors provided in correspondence with each predetermined detection target range in a fire prevention object and capable of detecting a predetermined event in the corresponding detection target range, and fire extinguishing devices provided in correspondence with each predetermined release target range in the fire prevention object and having specifications for releasing an extinguishing agent according to structural features of the corresponding release target range, the method including the steps of: determining a fire-related situation for each detection target range in the fire prevention object based on the detection results of the sensors; and controlling the release of an extinguishing agent by a fire extinguishing device to be operated that is provided in a release target range corresponding to the fire extinguishing target range set based on the fire-related situation for each detection target range determined in the step of determining the fire-related situation. The fire prevention object is set to a priority within a predetermined priority setting range, and the controlling step sets the fire extinguishing object range so that the priority setting range includes a priority above a certain level according to the stored amount of extinguishing agent discharged by the fire extinguisher. It is a fire prevention control method.

[0008] In one aspect of the present invention, a computer in a fire protection system including sensors provided in correspondence with each predetermined detection target range in a fire prevention object and capable of detecting a predetermined event in the corresponding detection target range, and fire extinguishing devices provided in correspondence with each predetermined release target range in the fire prevention object and having specifications for releasing an extinguishing agent according to the structural characteristics of the corresponding release target range, is configured to function as a fire-related situation determination unit that determines a fire-related situation for each detection target range in the fire prevention object based on the detection results of the sensors, and a fire protection control unit that controls the release of an extinguishing agent by a fire extinguishing device to be activated that is provided in a release target range corresponding to the fire extinguishing target range set based on the fire-related situation for each detection target range determined by the fire-related situation determination unit. The fire prevention object is set to a priority within a predetermined priority setting range, and the fire prevention control unit sets the fire extinguishing object range so that the priority setting range includes a priority above a certain level according to the amount of extinguishing agent stored in the fire extinguishing device. It is a program. [Effects of the Invention]

[0009] As described above, according to the present invention, it is possible to obtain the effect that fire can be appropriately extinguished in accordance with the structural characteristics of each part of a fire prevention object. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating an example of the configuration of a fire prevention system according to an embodiment of the present invention. [Figure 2] 1 is a diagram illustrating an example of the configuration of a fire prevention control device according to an embodiment of the present invention. [Figure 3] FIG. 4 is a diagram illustrating an example of sensor installation information according to the embodiment. [Figure 4] FIG. 4 is a diagram showing an example of fire extinguisher installation information according to the embodiment. [Figure 5] 10 is a flowchart illustrating an example of a processing procedure executed by the fire prevention control device according to the present embodiment in relation to fire extinguishing control. [Figure 6] 10 is a flowchart illustrating an example of a procedure for an operation pattern determination process according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] <Embodiment> Fig. 1 shows an example of the overall configuration of a fire prevention system according to this embodiment. The fire prevention system according to this embodiment takes as an example a case in which the fire prevention object CA is a building that is a cultural asset. In the following explanation, "fire extinguishing" refers to trying to put out a fire that has started, and "fire prevention" is treated as including "fire extinguishing" and preventing a fire from starting. Using sensors to determine whether a fire has started or whether a suspicious person has entered the building is included in "fire prevention."

[0012] The fire prevention system of this embodiment includes a plurality of sensors 100 (100A, 100B, 100C). Each of the sensors 100 detects a predetermined event used to determine a fire occurrence situation (an example of a fire-related situation) in a predetermined detection target area (an example of a detection target range) defined for a fire prevention object CA. The fire occurrence situation determined based on the event detected by the sensor 100 may be, for example, whether or not a fire has occurred, the location of the fire, the scale of the fire, etc.

[0013] The figure shows an example in which three types of sensors 100A, 100B, and 100C, each with a different detection method, are installed as the sensor 100. Although the figure shows five sensors 100A and one each of sensors 100B and 100C, there is no particular limitation on the numbers of sensors 100A, 100B, and 100C installed in the fire protection system.

[0014] The sensor 100A is, for example, a camera (image capturing device). The sensor 100A captures an image of the corresponding detection target area to obtain an image of the detection target area. In other words, the sensor 100A can be considered to detect a visually recognizable event in the detection target area. The sensor 100B is, for example, an infrared sensor, which detects heat in a detection target area. The sensor 100C is, for example, a gas sensor. That is, the sensor 100C detects gas generated in association with a fire in a detection target area. Specifically, the gas to be detected by the sensor 100C may be, for example, smoke or carbon monoxide. The sensor 100C may also be configured to detect odors generated in association with a fire.

[0015] In the fire prevention system of this embodiment, one or more sensors 100A, 100B, and 100C selected to suit the characteristics of each detection target area are provided for each location defined as a detection target area in the fire prevention object CA. As a specific example, the sensor 100A, which is basically a camera, may be selected as the sensor 100 to be provided in the detection target area. For example, sensor 100C, which is a gas sensor, can achieve a certain level of detection accuracy in environments where smoke tends to stagnate, such as indoors, but it is difficult to detect smoke with sufficient accuracy outdoors because smoke generated from the source of a fire tends to diffuse. Sensor 100B, which is an infrared sensor, can detect heat generated in response to a fire even outdoors. However, since an infrared sensor determines whether a fire has occurred based on whether it can detect heat, it is difficult to accurately detect the status of the fire (such as the location of the fire and the season for the fire). Taking these points into consideration, the fire prevention system of this embodiment mainly uses a sensor 100A that is a camera as the sensor 100. The sensor 100A that is a camera can detect the occurrence of smoke based on the captured image, and can also detect the state of a fire that has occurred. Furthermore, depending on the characteristics of the detection target area, the accuracy of fire detection using only sensor 100A as a camera may be insufficient. For example, in a location where the detection target area is constantly low in light, such as under an edge, where it is difficult to obtain brightness in the captured image, it may be difficult to detect smoke based on the captured image. In such a detection target area, sensor 100C as a gas sensor may be provided instead of or in combination with sensor 100A as a camera. Furthermore, depending on the conditions of the building materials, shape, etc. in the detection target area, even if a fire breaks out, smoke, embers, flames, etc. may not be generated in the early stages, making it difficult to detect the start of a fire from a captured image. In such a detection target area, sensor 100B, which is an infrared sensor, may be provided instead of sensor 100A, which is a camera, or in combination with sensor 100A.

[0016] The fire extinguishing system of this embodiment includes fire extinguishing devices 200 (200A, 200B, 200C). The fire extinguishing device 200 is a device that releases a fire extinguishing agent in response to fire extinguishing. Examples of fire extinguishing agents include water and chemicals. In the fire extinguishing device 200 of this embodiment, an example is given in which water is used as the fire extinguishing agent. Considering that the fire prevention object CA is a structure that is a cultural property, it is preferable to avoid deterioration of the structural components, etc., which would occur if a chemical fire extinguishing agent were used. Using water as the fire extinguishing agent can avoid problems such as deterioration of the structural components.

[0017] In the figure, an example is given in which three different types of fire extinguishing devices 200A, 200B, and 200C are installed as the fire extinguishing device 200. The numbers of each of 200A, 200B, and 200C provided in the fire extinguishing system are not particularly limited.

[0018] The fire extinguishing device 200A is a water cannon. A water cannon is capable of discharging a large amount of water over a long distance with a high water discharge pressure, and is therefore used to spray water over a wide area as a fire extinguishing target. In the fire protection system of this embodiment, a predetermined number of fire extinguishing devices 200A as water cannons are provided so that they can extinguish a fire from above the fire prevention object CA to the entire roof.

[0019] The fire extinguisher 200B is a water nozzle. The water nozzle can discharge water so that the water is dispersed in a fan shape from the water outlet. The water nozzle has a lower water discharge pressure than a water cannon, making it suitable for extinguishing fires in a limited area. In the fire extinguishing system of this embodiment, a limited water discharge target area is defined for the fire prevention object CA, which is a target range for water discharge by the fire extinguisher 200B, which is a water discharge nozzle. The water discharge target area (an example of a discharge target range) corresponding to such a fire extinguisher 200B may be defined for a certain area or volume, for example, or may be defined by dividing the area according to the structure, components, etc. of the fire prevention object CA while taking into consideration the physical range in which the water discharge nozzle can extinguish a fire. In the fire extinguishing system of this embodiment, one or more fire extinguishers 200B are provided corresponding to each of the limited water discharge target areas defined in this manner. For example, the fire prevention object CA in this embodiment includes wooden exterior walls that have been damaged by long-term exposure to wind and rain, such as cultural properties. In other words, the structure of a building as the fire prevention object CA includes parts that are easily damaged by water discharge.

[0020] Considering that the fire prevention object CA in this embodiment is a cultural property, consideration must be given to minimizing damage caused by water spraying in the portions of the wooden exterior wall that are susceptible to water spraying. Therefore, it is appropriate not to use a water cannon in such portions that are susceptible to water spraying, even if it would be highly effective in extinguishing the fire. In this embodiment, a fire extinguishing device 200B serving as a water spray nozzle can be deployed in the water spray target area, including such portions that are susceptible to water spraying. This allows the fire extinguishing system of this embodiment to extinguish the fire while minimizing damage to the fire prevention object CA caused by water spraying. The fire extinguisher 200B as a water discharge nozzle may be set with different water discharge pressures depending on the structure of the fire prevention object CA in the corresponding water discharge target area.

[0021] Fire extinguisher 200C is a drencher. A drencher is a fire extinguisher that prevents the spread of fire to a fire-prevention object by spraying water from multiple nozzles arranged at predetermined locations to form a water film. For example, when a fire-prevention object CA is divided into a main building and a detached building, fire extinguisher 200, which is a drencher, may be installed to prevent the spread of fire from the detached building to the main building or from the main building to the detached building.

[0022] As can be understood from the above explanation, the fire extinguishers 200A, 200B, and 200C have different specifications such as water discharge range, water discharge pressure, etc. Furthermore, the fire extinguishers 200A, 200B, and 200C are selected according to the structural characteristics of the fire prevention object CA.

[0023] Also in the figure, a first water discharge direction varying unit 210 is provided for a portion of the fire extinguisher 200A and the fire extinguisher 200B. The first water discharge direction varying unit 210 operates to change the water discharge direction of the corresponding fire extinguisher 200 in accordance with the control of the fire protection control device 600. Such a first water discharge direction varying unit 210 includes, for example, a motor and a movable mechanism, and the movable mechanism is driven to change the water discharge direction of the fire extinguisher 200 in accordance with the rotation of the motor in accordance with the control of the fire protection control device 600. The water discharge direction changed by the first water discharge direction varying unit 210 may be at least one of the up-down direction and the left-right direction.

[0024] Also in the figure, a second water discharge direction variable unit 220 is provided in a portion of the fire extinguisher 200B. The second water discharge direction variable unit 220 changes the water discharge direction so as to rotate 360 ​​degrees depending on the water pressure obtained during water discharge. Such second water discharge direction variable unit 220 is configured with a mechanism that rotates in a specific direction at a speed according to the water pressure obtained during water discharge. For example, the fire prevention object CA may have a courtyard surrounded by buildings. If fire extinguishing device 200B equipped with second water discharge direction variable unit 220 is installed in such a courtyard, it becomes possible to discharge water evenly to the buildings around the courtyard without having to control the water discharge direction during fire extinguishing. Although the second water-discharge direction varying section 220 can also be applied to the fire extinguisher 200A as a water-discharge gun, the figure shows an example in which it is applied to a part of the fire extinguisher 200B as a water-discharge nozzle.

[0025] Each of the fire extinguishing devices 200 is connected to a water distribution pipe 410 via a valve 300. The water distribution pipe 410 is connected to a pump 400. The pump 400 pumps up water stored in a water tank 500 and supplies the pumped water to the water distribution pipe 410. As described above, when water is supplied to the distribution pipe 410 by the pump 400, pressure is applied to the water in the distribution pipe 410. The fire protection control device 600 is capable of controlling the opening and closing of each of the valves 300 individually. When the corresponding valve 300 is opened under the control of the fire protection control device 600 while water is being supplied to the distribution pipe 410 from the pump 400, the fire extinguisher 200 discharges water. The amount of water discharged per unit time may be adjustable according to the opening degree of the valve 300. Furthermore, the water discharge pressure of the fire extinguisher 200 may be adjustable by the corresponding valve 300. The valve 300 may be provided in common to a plurality of fire extinguishing devices 200, for example, for each certain section.

[0026] It is preferable that the fire extinguishing device 200 is installed so as not to spoil the beauty and scenery of the fire prevention object CA as a cultural property during normal times when no fire has occurred. Since fire extinguisher 200A as a water cannon is relatively large, it may be stored in a storage box under normal circumstances, and the storage box may be opened manually or automatically when water is to be discharged. Also, fire extinguisher 200 may be stored underground under normal circumstances, and the lid of the storage location may be opened manually or automatically when water is to be discharged. Furthermore, the fire extinguishing devices 200 (200A, 200B, 200C) may be installed on a pole erected within the premises, instead of being installed on the ground.

[0027] The water tank 500 is a water tank that stores water to be discharged by the fire extinguishing device 200. The water tank 500 may be provided, for example, by being buried within the premises of the fire prevention object CA. The water tank 500 may also have a structure combined with a water basin within the premises of the fire prevention object CA. Water tank 500 is provided with a water level sensor 510. Water level sensor 510 detects the water level in water tank 500. Information on the water level detected by water level sensor 510 is output to fire prevention control device 600.

[0028] The fire prevention control device 600 executes control related to fire prevention of the fire prevention object CA. The fire prevention control device 600 acquires detection information obtained from each of the sensors 100, and determines a fire-related situation based on the acquired detection information.

[0029] As the fire-related situation, the fire prevention control device 600 determines whether a fire has occurred. To determine the fire situation, the fire prevention control device 600 may determine (identify) whether a fire has occurred, the location of the fire, etc. In response to determining that a fire has occurred as the fire occurrence situation, the fire prevention control device 600 controls the fire extinguisher 200 capable of extinguishing the fire to discharge water in accordance with the location where the fire has occurred.

[0030] Furthermore, as a determination of a fire-related situation, the fire protection control device 600 may determine whether a suspicious person has approached or entered the fire prevention object CA. The fire protection control device 600 may output an alarm in response to the detection of a suspicious person. As a mode of alarm output, the fire protection control device 600 may transmit alarm information to, for example, a terminal of a security officer at the fire prevention object CA via a network. As a mode of alarm output, the fire protection control device 600 may control an alarm device (not shown) provided in the fire prevention object CA to issue an alarm.

[0031] FIG. 2 shows an example of the configuration of a fire protection control device 600. In the same figure, sensors 100 (100A, 100B, 100C) and fire extinguishing devices 200 (200A, 200B, 200C) are shown together with the fire protection control device 600. Note that the breakdown of the sensors 100 (100A, 100B, 100C) in FIG. 2 does not necessarily match the breakdown of the fire extinguishing devices 200 (200A, 200B, 200C). This indicates that the sensors 100 and the fire extinguishing devices 200 should be changed as appropriate depending on the structure of the fire prevention object CA, etc.

[0032] An example of the configuration of the fire protection control device 600 of this embodiment will be described with reference to Fig. 2. The functions of the fire protection control device 600 shown in the figure are realized by a CPU (Central Processing Unit) provided in the hardware of the fire protection control device 600 executing a program. The fire protection control device 600 in the figure includes a sensor interface 601, a fire extinguisher interface 602, a control unit 603, a storage unit 604, and a communication unit 605.

[0033] The sensor interface 601 is an interface for inputting and outputting information between the sensor 100 and the control unit 603. The sensor interface 601 outputs detection information output by the sensor 100 to the control unit 603. The sensor interface 601 can also transmit commands output by the control unit 603 for controlling the sensor 100 to the sensor 100 to be controlled. By enabling the transmission and reception of commands in this way, the control unit 603 can, for example, control the sensor 100A to change the zoom magnification, imaging direction, etc. of the camera. The connection between the sensor interface 601 and the sensor 100 may be wireless or wired.

[0034] The fire extinguisher interface 602 is an interface for inputting and outputting information between the control unit 603 and the fire extinguisher 200 . The control unit 603 designates the destination valve 300 and transmits the open / close command. The open / close command is, for example, a command that indicates the opening degree of the valve 300. The fire extinguisher interface 602 transfers the received open / close command to the valve 300 designated as the destination. The valve 300 operates to open to the degree indicated by the received open / close command. The control unit 603 also transmits a water discharge direction command specifying the first water discharge direction variable unit 210 as the destination. The water discharge direction command is, for example, a command that indicates the water discharge direction (up-down angle, left-right angle) of the valve 300. The fire extinguisher interface 602 transfers the received water discharge direction command to the valve 300 specified as the destination. The valve 300 operates to follow the direction indicated by the received water discharge direction command. The connection between the fire suppression device interface 602 and the fire suppression device 200 may be wireless or wired.

[0035] The control unit 603 executes various controls in the fire prevention control device 600. The control unit 603 includes a fire-related situation determination unit 631 and a fire prevention control unit 632. The fire-related situation determination unit 631 determines a fire-related situation. That is, the fire-related situation determination unit 631 determines a fire outbreak situation in the fire prevention object CA as a fire-related situation based on the detection information of the sensor 100. The fire-related situation determination unit 631 may determine, for example, whether a fire has occurred as the fire outbreak situation, and if it determines that a fire has occurred, it may further identify the location where the fire has occurred. The fire prevention control unit 632 executes control related to fire prevention, including control to extinguish a fire that has occurred and control to output an alarm or the like in response to the intrusion of a suspicious person. When the fire-related situation determination unit 631 identifies that a fire has occurred, the fire prevention control unit 632 executes control to cause the fire extinguishing device 200 to spray water so as to extinguish the area where the fire has occurred. Furthermore, the fire-related situation determination unit 631 may determine a suspicious person intrusion situation as a fire-related situation. Specifically, the fire-related situation determination unit 631 may determine, as the suspicious person intrusion situation, whether or not a suspicious person has intruded into the fire prevention object CA, the location of the intruder, etc.

[0036] The storage unit 604 stores various types of information supported by the fire prevention control device 600. The storage unit 604 includes a sensor installation information storage unit 641, a fire extinguisher installation information storage unit 642, a priority area information storage unit 643, and a drawing data storage unit 644.

[0037] The sensor installation information storage unit 641 stores sensor installation information, which includes predetermined information items related to the sensors 100 installed in correspondence with the fire prevention object CA. 3 shows an example of sensor installation information. The sensor installation information has a structure in which a sensor type and a detection target area ID are associated as information items with each sensor ID indicating an installed sensor 100. The sensor ID is associated with the installation position of the corresponding sensor 100 in the drawing data of the fire prevention object CA stored in the drawing data storage unit 644. The sensor type indicates the type of the corresponding sensor. In this embodiment, the sensor type indicates that the sensor is a camera, an infrared sensor, or a gas sensor. The detection target area ID is an identifier indicating an area (detection target area) in the fire prevention object CA that is the detection target of the corresponding sensor 100. The detection target area corresponding to the detection target area ID is indicated in the drawing data of the fire prevention object CA.

[0038] The fire extinguisher installation information storage unit 642 stores the fire extinguisher installation information. The fire extinguisher installation information includes predetermined information items related to the installed fire extinguisher 200. 4 shows an example of the fire extinguisher installation information. The fire extinguisher installation information includes, as information items, the device type, the water discharge target area ID, and the corresponding detection target area ID for each fire extinguisher ID indicating the installed fire extinguisher 200. The fire extinguisher ID is associated with the installation location of the corresponding fire extinguisher 200 in the drawing data of the fire prevention object CA stored in the drawing data storage unit 644. The device type indicates the type of the corresponding fire extinguishing device 200. In the present embodiment, the device type indicates that the device is a camera, an infrared sensor, or a gas sensor.

[0039] The water discharge target area ID is an identifier indicating an area (water discharge target area) in the fire prevention object CA that is the target of water discharge by the corresponding fire extinguisher 200. The water discharge target area corresponding to the water discharge target area ID is indicated in the drawing data of the fire prevention object CA stored in the drawing data storage unit 644. Note that multiple fire extinguishers 200 may be installed to discharge water to the same single water discharge target area. In this case, the single water discharge target area may be stored in the fire extinguisher installation information for the multiple fire extinguishers.

[0040] The corresponding detection target area ID is the detection target area ID of the detection target area that is set as the corresponding detection target area. The corresponding detection target area is a detection target area that overlaps with the water discharge target area that is set as the corresponding detection target area for the fire extinguisher 200. For example, there may be cases where a plurality of detection target areas overlap with a water discharge target area of ​​one fire extinguisher 200. In such a case, as shown in the same figure, the detection target area IDs of the plurality of detection target areas may be stored in association with one water discharge target area.

[0041] The priority area information storage unit 643 stores information indicating priority areas in the fire prevention object CA where fire extinguishing should be performed with priority. The priority area information corresponding to one priority area may include a priority area ID. The location range of the priority area indicated by the priority area ID is shown in the drawing data of the fire prevention object CA stored in the drawing data storage unit 644.

[0042] The drawing data storage unit 644 stores drawing data. The drawing data is drawing data of a building as the fire prevention object CA. The drawing data may also include a map of the fire prevention object CA and its surrounding premises. As described above, the drawing data indicates the installation location of the sensor 100, the location range of the detection target area, the installation location of the fire extinguisher 200, and the location range of the water discharge target area.

[0043] The communication unit 605 communicates with the outside via a network, etc. By including the communication unit 605, the fire prevention control device 600 can communicate with the terminals of the fire prevention manager and security personnel. It can also access websites on the Internet to obtain necessary information such as weather (meteorological) information.

[0044] An example of a processing procedure executed by the fire protection control device 600 of this embodiment in relation to fire extinguishing control will be described with reference to the flowchart of FIG. Step S100: In the fire prevention control device 600, the fire-related situation determination unit 631 acquires the detection information output from each of the sensors 100.

[0045] The following steps S102 to S106 are processes to deal with the intrusion of a suspicious person, and steps S108 to S112 are processes to deal with the outbreak of a fire. The processes to deal with the intrusion of a suspicious person in steps S102 to S106 and the processes to deal with the outbreak of a fire in steps S108 to S112 are executed in parallel.

[0046] First, the process of steps S102 to S106 for dealing with the intrusion of a suspicious person will be described. Step S102: The fire-related situation determination unit 631 determines a suspicious person intrusion situation as a fire-related situation based on the detection information of the sensor 100 acquired in step S100. As a suspicious person intrusion situation, the fire-related situation determination unit 631 first determines whether or not a suspicious person has intruded into the premises of the fire prevention object CA, and if it determines that a suspicious person has intruded, it further tracks the position of the suspicious person. Furthermore, the fire-related situation determination unit 631 may determine the behavior of the suspicious person (for example, arson) while tracking. The fire-related situation determination unit 631 may execute the process of step S102 using the trained model. The trained model corresponding to the processing of step S102 may be constructed by inputting the detection information of the sensor 100 (100A, 100B, 100C) into a learning device and having the learning device output the judgment result of the suspicious person intrusion situation.

[0047] Step S104: The fire-related situation determination unit 631 determines whether or not it has been determined that a suspicious person has intruded, as a result of the determination of the suspicious person intrusion situation in step S102. Step S106: If it is determined that a suspicious individual has intruded, the fire prevention control unit 632 executes control to output an alarm indicating the intrusion of a suspicious individual (alarm output control). As described above, the alarm output control may involve sending alarm information to a terminal of a security officer to output an alarm at the terminal. Alternatively, the alarm output control may involve issuing an alarm from an alarm device (not shown) installed in the fire prevention object CA. The alarm output in step S104 may be stopped in response to a command to stop the alarm received from a terminal of a security officer, for example.

[0048] Next, the process for responding to a fire in steps S108 to S112 will be described. Step S108: The fire-related situation determination unit 631 determines whether a fire has occurred as a fire-related situation. The fire-related situation determination unit 631 first determines whether or not a fire has occurred at the fire prevention object CA as a fire occurrence situation, and if it determines that a fire has occurred, it further determines the location where the fire has occurred (fire occurrence location) and the scale of the fire at the fire occurrence location. The fire-related situation determination unit 631 may determine the location of a fire in units of detection target areas corresponding to the sensors 100 that detected an event corresponding to the occurrence of a fire. Furthermore, based on an image captured by the sensor 100A as a camera, for example, it is possible to determine the occurrence of a fire in units of partial locations in the detection target area corresponding to the sensor 100A. Therefore, the fire-related situation determination unit 631 may determine, as the location of a fire, a partial area in the detection target area corresponding to the sensor 100 that captured the image corresponding to the occurrence of a fire. The fire-related situation determination unit 631 may execute the process of step S108 using the trained model. The trained model corresponding to the processing of step S108 may be constructed by inputting the detection information of the sensors 100 (100A, 100B, 100C) into a learning device and having the learning device output the judgment result of the fire occurrence situation, thereby performing learning.

[0049] Step S110: The fire protection control unit 632 executes a process (operation pattern determination process) to determine a pattern (operation pattern (one example of operation setting contents)) for operating the fire extinguisher 200 according to the result of the determination of the fire occurrence situation in this step S108. Determining the operation pattern of the fire extinguisher 200 here means determining whether to stop or discharge water for each fire extinguisher 200, and determining predetermined water discharge parameters for the fire extinguisher 200 that will discharge water. The water discharge parameters are, for example, the water discharge pressure and the water discharge direction.

[0050] Step S112: The fire protection control unit 632 executes control (operation control) to operate each of the fire extinguishers 200 according to the operation pattern determined in step S108. The operation control here includes control to cause the fire extinguishers 200 designated as operation targets to discharge water in accordance with the determined water discharge parameters, and control to stop the fire extinguishers 200 designated as non-operation targets. After the processing of steps S106 and S112, the process returns to step S100.

[0051] An example of the procedure for the operation pattern determination process in step S110 of FIG. 6 will be described with reference to the flowchart of FIG. Step S200: The fire prevention control unit 632 determines whether or not the result of the determination of the fire occurrence situation in step S108 indicates the occurrence of a fire.

[0052] Step S202: The fire prevention control unit 632 first determines an area to be targeted for fire extinguishing (fire extinguishing target area) in the fire prevention object CA. A plurality of fire extinguishing target areas may be determined depending on the state of the fire outbreak. Specifically, the fire prevention control unit 632 sets an area including one or more fire occurrence locations determined in step S108 as a fire extinguishing target area. A plurality of fire extinguishing target areas may be set in this manner depending on the distribution of fire occurrence locations. That is, the fire prevention control unit 632 may set one fire extinguishing target area including two fire occurrence locations if the distance between two fire occurrence locations is less than a certain distance, and may set one fire extinguishing target area including each of the two fire occurrence locations if the distance is equal to or greater than the certain distance.

[0053] Step S204: Next, the fire protection control unit 632 determines, based on the water level detected by the water level sensor 510, whether the amount of water in the water tank 500 is equal to or less than a certain level. Step S206: If the amount of water in the water tank 500 is below a certain level, discharging water from all fire extinguishers 200 corresponding to the set fire extinguishing target area may result in a shortage of water to be used for discharging before the fire can be fully extinguished. Therefore, in this case, the fire protection control unit 632 determines whether the fire extinguishing target area set in step S202 includes any of the priority areas indicated by the priority area information stored in the priority area information storage unit 643. Step S208: If it is determined that the fire extinguishing target area includes a priority area, the fire prevention control unit 632 changes the setting of the fire extinguishing target area so that areas other than the priority area remain from the fire extinguishing target area set in step S202.

[0054] Step S210: After the processing of step S208, or if it is determined in step S204 that the amount of water in the water tank 500 is equal to or greater than a certain amount, or if it is determined in step S206 that the priority area is not included in the fire extinguishing target area, the fire protection control unit 632 refers to the fire extinguisher installation information and identifies a fire extinguisher 200 that includes a water discharge target area corresponding to the fire extinguishing target area. The fire protection control unit 632 sets the identified fire extinguisher 200 as an operating target that should be operated (discharge water) according to the current fire situation. In this case, among the fire extinguishing devices 200 that were set as operation targets in the previous step S210, the setting of the fire extinguishing devices 200 that were also set as operation targets in the current step S210 will be maintained as operation targets. On the other hand, for fire extinguishing devices 200 that were set as operating targets in the previous step S210 but that are no longer determined to have a fire in the corresponding fire extinguishing target area by this step S108 (i.e., fire extinguishing has been completed), the setting is changed from operating target to non-operating target.

[0055] The detection target areas corresponding to the respective sensors 100 and the water discharge target areas corresponding to the respective fire extinguishers 200 are not particularly identical in classification but are different. Therefore, by setting the fire extinguishing target areas by the processing of steps S202 to S208 and then setting the fire extinguishers 200 whose water discharge target areas overlap with the set fire extinguishing target areas as operation targets, it is possible to set the fire extinguishers 200 to be operated appropriately at the location of a fire outbreak.

[0056] Step S212: The fire prevention control unit 632 determines water discharge parameters for each fire extinguisher 200 set as an operating target in step S210. Here, an example will be described in which the water discharge parameters are the water discharge pressure and the water discharge direction. The fire protection control unit 632 may set the water discharge pressure for one of the fire extinguishing apparatuses 200 to be operated in accordance with the scale of the fire in the corresponding fire extinguishing area determined in step S108. By setting the water discharge pressure in this manner, when the scale of the fire is small, it becomes possible to effectively extinguish the fire while minimizing damage to structures in the corresponding fire extinguishing area. Furthermore, the fire protection control unit 632 derives a water discharge direction for one fire extinguisher 200 to be operated, according to the location of the fire determined in step S108 in the corresponding fire extinguishing area. When deriving the water discharge direction, if the location of the fire to be treated is wide, the fire protection control unit 632 may derive a water discharge direction that will discharge water to cover as much of the entire fire location as possible. Furthermore, if the location of the fire to be treated is narrow, the fire protection control unit 632 may derive a water discharge direction that will enable water discharge to be limited to the fire location as much as possible. The fire prevention control unit 632 sets the derived water discharge direction in association with the fire extinguisher 200 to be operated.

[0057] Of the fire extinguishers 200 to be operated, for those fire extinguishers 200 whose water discharge pressure is fixedly determined, setting of the water discharge pressure in step S212 may be omitted. Also, of the fire extinguishers 200 to be operated, for those fire extinguishers 200 that do not have the first water discharge direction variable unit 210 or that have the first water discharge direction variable unit 210 but whose water discharge direction is fixedly determined, setting of the water discharge pressure in step S212 may be omitted.

[0058] Step S214: Next, the fire prevention control unit 632 acquires weather information for the area including the fire prevention object CA. The fire prevention control unit 632 may acquire weather information for the area from, for example, a website that provides weather information on the Internet. In addition, if it is sufficient to obtain wind information as weather information, the fire prevention control unit 632 may obtain information on wind speed and direction measured, for example, by an anemometer installed within the premises of the fire prevention object CA.

[0059] Step S216: The fire prevention control unit 632 corrects the setting details of the fire extinguisher 200 to be put into operation in steps S210 and S212. For example, as wind occurs, the water discharge range of fire extinguisher 200 deviates from its original position in a windless state, and the deviation becomes larger as the wind strengthens. If the deviation of the water discharge range of fire extinguisher 200 becomes larger, it becomes difficult for water to reach the location where it should be extinguished, and there is a possibility that fire extinguishing will not be performed sufficiently. Therefore, the fire protection control unit 632 corrects the setting contents of the fire extinguisher 200 to be operated based on the wind information indicated by the weather information acquired in step S214 so that fire extinguishing can be performed sufficiently regardless of wind.

[0060] Specifically, the fire protection control unit 632 may correct the setting contents of the fire extinguisher 200 to be operated, by correcting the water discharge pressure, which is one of the water discharge parameters of the fire extinguisher 200 to be operated, in accordance with the wind strength (wind speed) indicated by the wind information acquired in step S214. In this way, the fire protection control unit 632 can make corrections to increase the water discharge pressure as the wind gets stronger, thereby making it less susceptible to the influence of wind and suppressing deviations in the water discharge range.

[0061] Furthermore, the fire protection control unit 632 corrects the setting contents of the fire extinguisher 200 to be operated, based on information such as wind speed and direction and water discharge pressure, to derive a portion in the fire extinguishing target area where water will not land due to a deviation in the water discharge range of the fire extinguisher 200 set as the fire extinguisher 200 to be operated in this step S210. The fire protection control unit 632 newly sets the fire extinguisher 200 to be operated so that water is discharged to the portion in the fire extinguishing target area where water will not land. Furthermore, the fire protection control unit 632 may change the setting of a fire extinguisher 200 to be in operation that is unable to land water in the fire extinguishing target area due to a deviation in the water discharge range, among the fire extinguishers 200 set as the fire extinguisher 200 to be operated in this step S210, to a non-operation target.

[0062] Step S218: If it is determined in step S200 that the fire occurrence status determination result does not indicate the occurrence of a fire, the fire protection control unit 632 sets all fire extinguishers 200 as non-operating targets as an operation pattern. At this time, the fire protection control unit 632 continues to set the non-operating status of the fire extinguishers 200 that had previously been set as non-operating targets. In addition, the fire protection control unit 632 changes the setting of the fire extinguishers 200 that had previously been set as operating targets to non-operating.

[0063] In this way, the fire protection control unit 632 can set, as an operation pattern, the fire extinguisher 200 to be operated and the water discharge parameters of the fire extinguisher 200 to be operated. In step S112 described above, the fire protection control unit 632 controls the water discharge operation of the fire extinguisher 200 to be operated in accordance with the operation pattern set as described above. At this time, the fire protection control unit 632 controls the fire extinguisher 200 that was previously set as an operation target but has been set as a non-operation target by the current operation pattern determination process to stop discharging water. Furthermore, in step S112, the fire protection control unit 632 does not particularly control the operation of fire extinguishers 200 that were set as non-operating targets in the previous operation pattern determination process and that are also set as non-operating targets in the current operation pattern determination process, so that the non-operating state remains the same as the previous time. Therefore, in a situation where no fire continues to occur, the processing procedure from step S200 through step S218 to step S112 is repeated, and the non-operating state of all fire extinguishers 200 continues.

[0064] <Modification> Modifications of this embodiment will be described below. The modifications described below may be combined as appropriate. [First Modification] In order to guard against suspicious individuals, the fire prevention control unit 632 may cause the fire extinguisher 200 installed at a predetermined location to discharge water at a water discharge pressure below a certain level even when no fire has occurred. By causing the fire extinguisher 200 to discharge water at such a low water discharge pressure, it is possible to notify the surrounding area that a state of vigilance against suspicious individuals is being maintained, thereby preventing intrusion by suspicious individuals and criminal acts by suspicious individuals.

[0065] [Second Modification] In the above embodiment, the fire prevention control device 600 determines the fire-related situation (determines whether a fire has occurred and whether a suspicious person has entered the building). In this modification, the sensors 100 may individually determine the fire-related situation. In this case, the sensors 100 may use a trained model to determine the fire-related situation.

[0066] [Third Modification] A tiered priority may be set for the priority areas. Then, as the amount of water in the water tank 500 decreases, the fire prevention control unit 632 may change the setting of the fire extinguishing target area in step S208 by excluding tiered priority areas. The priority area may be an area that coincides with a predetermined detection target area or a predetermined water discharge target area.

[0067] [Fourth Modification] When a fire breaks out, for example, if it is raining or the humidity is high, the fire can be effectively extinguished even if the amount of water discharged is reduced to a certain extent. Therefore, the fire protection control unit 632 may change the water discharge pressure by changing the amount of water discharged from the fire extinguisher 200 based on weather information such as the amount of rainfall.

[0068] [Fifth Modification] The function of the fire prevention control device 600 may be realized, for example, by cooperation between a plurality of devices connected in a communicable manner.

[0069] [Sixth Modification] The fire prevention object CA that is the target of fire prevention by the fire prevention system of this embodiment is not limited to cultural properties, but may be any other type of building.

[0070] The program for implementing the functions of the fire protection control device 600 may be recorded on a computer-readable recording medium, and the program may be loaded into a computer system and executed to perform the processing of the fire protection control device 600. Here, "loading a program recorded on a recording medium into a computer system and executing it" includes installing the program into a computer system. The term "computer system" here includes hardware such as an OS and peripheral devices. The term "computer system" may also include multiple computers connected via a network, including communication lines. The term "recording medium" also includes internal or external recording media accessible from a distribution server for distributing the program. [Explanation of symbols]

[0071] 100 Sensor, 200 Fire extinguishing device, 210 First water discharge direction variable unit, 220 Second water discharge direction variable unit, 300 Valve, 400 Pump, 410 Water distribution pipe, 500 Water tank, 510 Water level sensor, 600 Fire protection control device, 601 Sensor interface, 602 Fire extinguishing device interface, 603 Control unit, 604 Memory unit, 605 Communication unit, 631 Fire-related situation determination unit, 632 Fire protection control unit, 641 Sensor installation information memory unit, 642 Fire extinguishing device installation information memory unit, 643 Priority area information memory unit, 644 Drawing data memory unit

Claims

1. a sensor provided in each predetermined detection range of the fire prevention object, the sensor being capable of detecting a predetermined event in the corresponding detection range; a fire extinguishing device provided for each predetermined target area of ​​discharge in the fire prevention object, the fire extinguishing device having specifications for discharging a fire extinguishing agent according to the structural characteristics of the corresponding target area of ​​discharge; a fire-related situation determination unit that determines a fire-related situation for each detection target range in the fire prevention object based on the detection result of the sensor; a fire prevention control unit that controls the release of a fire extinguishing agent by a fire extinguishing device to be operated that is provided in a release target range corresponding to a fire extinguishing target range set based on the fire-related situation for each detection target range determined by the fire-related situation determination unit; Equipped with a priority is set for the fire prevention object within a predetermined priority setting range, The fire prevention control unit sets the fire extinguishing target range so as to include a priority setting range having a certain priority or higher, according to a storage amount of the extinguishing agent discharged by the fire extinguishing device. Fire protection system.

2. The fire prevention control unit changes the operation setting of the fire extinguisher based on weather information of an area where the fire prevention object is located.

10. The fire protection system of claim 1.

3. The fire prevention control unit changes the fire extinguishing device to be operated as the operation setting content.

3. The fire protection system of claim 2.

4. The fire prevention control unit changes a pressure at which a fire extinguishing agent is discharged from a fire extinguishing device to be operated as the operation setting content. A fire protection system according to claim 2 or 3.

5. The fire prevention control unit changes a direction in which a fire extinguishing agent is discharged from a fire extinguishing device to be operated as the operation setting content. A fire protection system according to any one of claims 2 to 4.

6. A fire protection control method for a fire protection system including sensors provided in correspondence with each predetermined detection target range in a fire protection object and capable of detecting a predetermined event in the corresponding detection target range, and fire extinguishing devices provided in correspondence with each predetermined release target range in the fire protection object and having specifications for releasing an extinguishing agent according to structural features of the corresponding release target range, determining a fire-related situation for each detection target range in the fire prevention object based on the detection result of the sensor; a step of controlling the release of a fire extinguishing agent by a fire extinguishing device to be operated that is provided in a release target range corresponding to a fire extinguishing target range that is set based on the fire-related situation for each detection target range determined in the step of determining a fire-related situation; Including, a priority is set for the fire prevention object within a predetermined priority setting range, The step of controlling includes setting the fire extinguishing target range so as to include a priority setting range having a certain priority or higher, according to a stored amount of extinguishing agent discharged by the fire extinguishing device. Fire control methods.

7. A computer in a fire protection system including sensors provided in correspondence with each predetermined detection target range in a fire prevention object and capable of detecting a predetermined event in the corresponding detection target range, and fire extinguishing devices provided in correspondence with each predetermined discharge target range in the fire prevention object and having specifications for discharging a fire extinguishing agent according to the structural characteristics of the corresponding discharge target range, a fire-related situation determination unit that determines a fire-related situation for each detection target range in the fire prevention object based on the detection result of the sensor; a fire prevention control unit that controls the release of fire extinguishing agent from a fire extinguishing device to be operated that is provided in a release target range corresponding to a fire extinguishing target range set based on the fire-related situation for each detection target range determined by the fire-related situation determination unit; It functions as a priority is set for the fire prevention object within a predetermined priority setting range, The fire prevention control unit sets the fire extinguishing target range so as to include a priority setting range having a certain priority or higher, according to a storage amount of the extinguishing agent discharged by the fire extinguishing device. program.

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