Control System

Abstract

To provide a control system, a control method, and a program capable of detecting precursors of abnormal events.SOLUTION: A control system 10 includes an acquisition unit 21 and a precursor determination unit 22. The acquisition unit 21 acquires detection results from one or more detection units D1 placed in facility 100. One or more detection units D1 detect detection targets related to abnormal events. The precursor determination unit 22 determines the precursor of abnormal events based on the detection result acquired by the acquisition unit 21 of the detection unit D1. The abnormal events include at least fire detectable by a fire detector 1 placed in facility 100.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a control system To More specifically, the present disclosure relates to a control system for performing control related to fire detection. To Regarding. [Background technology]

[0002] Patent Document 1 discloses an alarm linkage system that links multiple alarm systems installed in multiple homes. Each alarm system is equipped with multiple home alarm devices that mutually warn each other when a fire is detected. In the alarm linkage system, when a fire is detected by the alarm system of one home, a fire linkage signal is transmitted to the alarm systems of the other homes, and an abnormality alarm is output indicating an abnormality in the linked alarm system. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-252689 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the alarm linkage system configured as described above, when a fire is detected by the alarm system of a certain home, a fire linkage signal is transmitted to the alarm systems of other homes that have been registered in advance; however, there has been a demand to be able to detect precursors of abnormal events such as fires before they occur.

[0005] The purpose of this disclosure is to develop a control system that can detect precursors of abnormal events. M The purpose is to provide. [Means for solving the problem]

[0006] A control system according to an embodiment of the present disclosure includes an acquisition unit, a sign determination unit, and A processing section;The acquisition unit acquires detection results from one or more detection units arranged in a facility. The one or more detection units detect a detection target related to an abnormal event. The sign determination unit determines a sign of the abnormal event based on the detection results of the detection units acquired by the acquisition unit. The processing unit cooperates with the fire detectors arranged in the facility to carry out processing based on the judgment result of the sign judgment unit. The abnormal event is a The above The one or more detection units do not include an odor detection unit that detects odors in the facility, but include a temperature detection unit that detects temperature. The precursor determination unit determines that a precursor of the abnormal event has occurred when a state in which the temperature detected by the temperature detection unit is equal to or higher than a reference value continues for a predetermined duration or longer. When the precursor judgment unit detects a precursor of the abnormal event, the processing unit performs the process of setting the sensitivity of the fire detector to a higher sensitivity than when the precursor of the abnormal event is not detected.

[0008] A program according to one embodiment of the present disclosure is a program for causing a computer system to execute the control method according to the eleventh embodiment. Effect of the Invention

[0009] According to the present disclosure, a control system capable of detecting a precursor of an abnormal event is provided. M can be provided. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic system configuration diagram of an entire system including a control system according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a diagram for explaining an application example of the control system. [Diagram 3] FIG. 3 is a flowchart showing the operation of the control system. [Figure 4] FIG. 4 is a diagram showing an example of a notification area in which the control system notifies notification information. [Diagram 5] FIG. 5 is a diagram illustrating a part of a facility to which the above control system is applied. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] (Embodiment) (1) Overview Each drawing described in the following embodiments is a schematic drawing, and the size and thickness ratios of each component in each drawing do not necessarily reflect the actual dimensional ratios.

[0012] 1, the control system 10 according to this embodiment includes an acquisition unit 21 and a sign determination unit 22. The acquisition unit 21 acquires detection results from one or more detection units D1 arranged in the facility 100. The one or more detection units D1 detect detection targets related to abnormal events. The sign determination unit 22 determines a sign of an abnormal event based on the detection results of the detection unit D1 acquired by the acquisition unit 21. The abnormal event includes at least a fire that can be detected by a fire detector 1 arranged in the facility 100.

[0013] Here, the detection unit D1 detects a detection target related to an abnormal event. The detection target of the detection unit D1 includes at least a fire-related event related to a fire. The "fire-related event" is an event related to a fire, and includes at least one of a first event occurring as a precursor of a fire and a second event that causes a fire. The first event includes at least one of a rise in temperature that occurs at the beginning of a fire, smoke generation, and odor (the odor of something smoldering, the odor of fuel such as kerosene and flammable gas, etc.). The second event includes, for example, a short circuit state that occurs in an electric appliance (including wiring devices) and its wiring, abnormal heat generation in an electric appliance (including wiring devices) and its wiring, and an arc generation due to a break in the wiring, etc. Here, the arc generated by the break in the wiring includes a series arc generated by a partial break in one of a pair of electric wires that constitute the wiring, and a parallel arc generated by a short circuit due to contact between the conductors of a pair of electric wires that constitute the wiring. Furthermore, the "abnormal event" may include at least a fire-related event and / or an abnormality in environmental control equipment that controls the environment within facility 100 (for example, an air conditioning system and a lighting system).

[0014] In the control system 10 of the present embodiment, the precursor judgment unit 23 judges the precursor of an abnormal event based on the detection result of the detection unit D1 acquired by the acquisition unit 21, so that the occurrence of an abnormal event can be grasped in advance before the abnormal event occurs. As a result, a user who uses the facility 100 can predict the occurrence of an abnormal event based on the judgment result of the precursor judgment unit 23 at a stage before the abnormal event occurs, and can take a quick response to the abnormal event that will occur in the future. For example, the user can take a quick action to prevent the occurrence of an abnormal event or to reduce the scale of damage caused by the abnormal event. Therefore, according to the present disclosure, a control system capable of detecting the precursor of an abnormal event can be provided. And, according to the control system 10 of the present embodiment, it is possible to prompt the user who uses the control system 10 to respond to the abnormal event at an earlier stage.

[0015] The control system 10 of this embodiment is applied to a facility 100 such as a detached house (see Figs. 1 and 2). When a fire breaks out in the facility 100 such as a detached house, the control system 10 estimates the scale of the fire's spread and performs processing according to the estimation result. In this embodiment, it is assumed that the facility 100 is a detached house, but the facility 100 is not limited to a detached house and may be an apartment building (condominium). Furthermore, the facility 100 is not limited to a house and may be a non-house, for example, an office building, a theater, a movie theater, a public hall, an amusement park, a complex, a restaurant, a department store, a school, a hotel, an inn, a hospital, a nursing home, a kindergarten, a library, a museum, an art museum, an underground shopping mall, a station, an airport, etc.

[0016] (2)Details (2.1) Structure The control system 10 of this embodiment will be described in detail below with reference to the drawings.

[0017] A control system 10 of this embodiment is disposed in a facility 100 such as a house, as shown in FIGS.

[0018] FIG. 1 is a schematic system configuration diagram of a facility 100 in which a control system 10 is arranged. In addition to the control system 10, a detection unit D1, a relay device 40, and a fire extinguishing system 60 are arranged in the facility 100. The relay device 40 is connected to a network NT1 such as the Internet, and has a relay function for relaying communication between the control system 10 arranged in the facility 100 and an external server 200 connected to the network NT1. The external server 200 may include, for example, a server operated by a business that provides a service for monitoring the status of a plurality of facilities 100, or a public institution such as a local government. In addition, the fire extinguishing system 60 arranged in the facility 100 works in conjunction with a fire detector 1, and performs a fire extinguishing operation when the fire detector 1 detects a fire. The fire extinguishing system 60 includes, for example, a sprinkler arranged in the facility 100, and performs a fire extinguishing operation by activating the sprinkler when the fire detector 1 detects a fire. In addition, in addition to the fire extinguishing system 60, the facility 100 may be equipped with a fire door system that closes fire doors or fire shutters, and a smoke exhaust system that exhausts smoke that fills the facility 100, as disaster prevention systems for suppressing the spread of a fire that occurs in the facility 100, and the control system 10 may activate these disaster prevention systems when it detects a precursor to a fire.

[0019] The detection unit D1 is disposed in the facility 100 and detects a detection target related to an abnormal event in the facility 100. In this embodiment, a fire detector 1, a smoke detector 2, a temperature detector 6, a color vision detector 7, an odor detector 8, and a current abnormality detector 9 are disposed in the facility 100 as the detection unit D1. It is not essential that the detection unit D1 includes all of the fire detector 1, the smoke detector 2, the temperature detector 6, the color vision detector 7, the odor detector 8, and the current abnormality detector 9. The detection unit D1 may include one or more of the fire detector 1, the smoke detector 2, the temperature detector 6, the color vision detector 7, the odor detector 8, and the current abnormality detector 9. The detection unit D1 may also include a sensor that detects other fire-related events (for example, a gas detector that detects gas such as carbon monoxide that occurs with a fire). The detection unit D1 may also detect a detection target related to an abnormal event other than a fire. Abnormal events other than fires may include abnormalities in electrical equipment installed in the facility 100. For example, the detection unit D1 detects the temperature of a space in which the temperature is controlled by an air conditioning system installed in the facility 100, allowing the sign determination unit 22 to determine a precursor to an abnormality in the air conditioning system. Furthermore, the detection unit D2 detects the brightness of a space illuminated by a lighting system installed in the facility 100, allowing the sign determination unit 22 to determine a precursor to an abnormality in the lighting system.

[0020] The fire detector 1 is installed on a ceiling or a wall in a space in the facility 100 where the fire detector 1 is to be installed. The fire detector 1 has, for example, a temperature sensor such as a thermopile and a photoelectric smoke sensor that detects the presence or absence of smoke, and detects whether or not a fire has broken out based on at least one of heat and smoke. The fire detector 1 has a wireless communication function, and when it detects the breakout of a fire, it wirelessly transmits a fire detection signal.

[0021] In this embodiment, a plurality of fire detectors 1 are arranged in a facility 100. In the following description, when the plurality of fire detectors 1 are to be distinguished from one another, they may be referred to as fire detectors 1A to 1E. As shown in FIG. 2, the plurality of fire detectors 1A to 1E are arranged in a plurality of spaces E1 to E5 in the facility 100, respectively. Here, of the plurality of fire detectors 1A to 1E, for example, the fire detector 1A is used as a master detector, and the other fire detectors 1B to 1E are used as slave detectors. The fire detectors 1A to 1E wirelessly communicate with each other, and when the slave fire detectors 1B to 1E detect a fire, they notify the occurrence of the fire by both sound and light, and wirelessly transmit a fire detection signal to the master fire detector 1A. When the fire detector 1A, which is the master device, receives a fire detection signal from any of the fire detectors 1B to 1E, it notifies the occurrence of a fire with both sound and light, and transmits an interlocking signal to the fire detectors 1 other than the fire detector among the fire detectors 1B to 1E, so that the fire detectors 1 other than the fire detector notify the occurrence of a fire with both sound and light. When the fire detector 1A, which is the master device, detects a fire with the fire detector 1A or receives a fire detection signal from the fire detectors 1B to 1E, which are the slave devices, it wirelessly transmits an alarm signal notifying the occurrence of a fire to the control system 10. Here, if the fire detectors 1B to 1E detect a fire with the fire detectors 1B to 1E even after receiving the interlocking signal, they wirelessly transmit a fire detection signal to the fire detector 1A. Whenever the number of the fire detectors 1 that have detected a fire changes, the fire detector 1A, which is the master device, wirelessly transmits information indicating the number of the fire detectors 1 that have detected a fire to the control system 10.

[0022] The smoke detection unit 2 includes a photoelectric smoke sensor that detects the concentration of smoke in the environment, and a wireless communication function for wireless communication with the control system 10. When smoke is detected by the smoke sensor, the smoke detection unit 2 wirelessly transmits concentration information indicating the concentration of the smoke to the control system 10.

[0023] As shown in FIG. 2, the temperature detection unit 6 includes a first temperature detection unit 6A arranged in the space inside the facility 100 (rooms E1 to E5) and a second temperature detection unit 6B arranged on the outer wall of the facility 100. The first temperature detection unit 6A detects the temperature in the space inside the facility 100 and can detect a temperature rise caused by a fire or the like, and can detect the temperature controlled by an air conditioning system installed in the facility 100. The second temperature detection unit 6B detects the temperature near the outer wall of the facility 100. For example, if the facility 100 is set on fire outside the facility 100, the second temperature detection unit 6B can detect a temperature rise on the outer wall of the facility 100 caused by the arson, and can detect the occurrence of a fire before the fire spreads from the outside to the inside of the facility 100. The temperature detection unit 6 (the first temperature detection unit 6A and the second temperature detection unit 6B) includes a temperature sensor such as a thermistor or a thermopile for detecting the surrounding temperature, and a wireless communication function for wireless communication with the control system 10. The temperature detection units 6 (the first temperature detection unit 6A and the second temperature detection unit 6B) wirelessly transmit information indicating the detection results of the temperature sensors to the control system 10. In this embodiment, since the second temperature detection unit 6B is disposed on the outer wall of the facility 100, a deterrent effect can be expected that dissuades suspicious individuals planning to set fire to the facility from doing so.

[0024] The color vision detection unit 7 includes a camera 70 (see FIG. 5) having an RGB image sensor, and a wireless communication function for wireless communication with the control system 10. The camera 70 is arranged so as to be able to capture an image of a plurality of temperature-sensitive elements 71 arranged inside the facility 100. Each of the plurality of temperature-sensitive elements 71 is a tape-shaped member having a surface coated with a temperature-sensitive ink whose color changes depending on the temperature. The plurality of temperature-sensitive elements 71 are arranged, for example, at a plurality of installation locations in a room E5 inside the facility 100. The color vision detection unit 7 distinguishes the colors of the plurality of temperature-sensitive elements 71 based on the image captured by the camera 70, and wirelessly transmits information indicating the color distinction result of the plurality of temperature-sensitive elements 71 to the control system 10.

[0025] The odor detection unit 8 includes an electrochemical or semiconductor gas sensor that detects odor components in gas, and a wireless communication function for wireless communication with the control system 10. The odor components detected by the gas sensor include at least components that are generated when something smokes. The odor detection unit 8 wirelessly transmits information indicating the results of the odor detection by the gas sensor to the control system 10.

[0026] The current anomaly detection unit 9 includes a current sensor that detects a current flowing through an electric device 90 arranged in the facility 100, and a wireless communication function for wireless communication with the control system 10. The electric device 90 may include an air conditioner, a lighting device, an electric cooking device, a refrigerator, a washing machine, or the like used in the facility 100. The current anomaly detection unit 9 detects anomalies such as a short circuit in the electric device 90 and the wiring connected to the electric device 90 by detecting a characteristic waveform that occurs in the occurrence of a short circuit anomaly and its precursor state from a current waveform of the current flowing through the electric device. In other words, the current anomaly detection unit 9 detects an anomaly in the current flowing through the electric device 90 based on the current waveform of the current flowing through the electric device 90 used in the facility 100, and wirelessly transmits information indicating the detection result to the control system 10.

[0027] Here, the wireless communication function of the detection unit D1 includes, for example, a wireless communication interface that complies with the Wi-SUN (registered trademark) standard (international standard IEEE 802.15.4g). The detection unit D1 performs wireless communication using radio waves in a radio frequency band of, for example, 920 MHz. Note that the wireless communication function of the detection unit D1 is not limited to one that includes a wireless communication interface that complies with the WiSUN (registered trademark) standard, but may also include a wireless communication interface that complies with standards such as Bluetooth (registered trademark) and ZigBee (registered trademark), or may also include a wireless communication interface of a unique communication method that does not comply with a standard.

[0028] The control system 10 includes a signal processing unit 20, a first communication unit 31, a second communication unit 32, and a storage unit 33. In this embodiment, the control system 10 also serves as a controller for a Home Energy Management System (HEMS) that manages energy used in a facility 100. Note that the control system 10 is not limited to a system that also serves as a controller for the HEMS, and may be a dedicated system.

[0029] The first communication unit 31 performs wireless communication with the detection unit D1 arranged in the facility 100. The first communication unit 31 has a wireless communication interface conforming to the Wi-SUN (registered trademark) standard, for example, and performs wireless communication using radio waves in the 920 MHz radio frequency band. Note that the first communication unit 31 may have a wireless communication interface conforming to standards such as Bluetooth (registered trademark) and ZigBee (registered trademark).

[0030] The second communication unit 32 communicates with the external server 200 and the like via the relay device 40 and the network NT1. The second communication unit 32 also communicates with an information terminal 50 used by a user who uses the facility 100 via the relay device 40 or via the relay device 40 and the network NT1. The second communication unit 32 can also communicate with a control system 10 disposed in another facility 100 or an information terminal 50 used by a user who uses another facility 100 via the relay device 40 and the network NT1. Here, the information terminal 50 may be a display-integrated terminal device installed in the facility 100 or may be a portable information terminal (e.g., a smartphone or a tablet computer) carried by a user.

[0031] The storage unit 33 is configured with a device selected from a ROM (Read Only Memory), a RAM (Random Access Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), etc. The storage unit 33 stores identification information of the fire detector 1, the smoke detection unit 2, the temperature detection unit 6, the color vision detection unit 7, the odor detection unit 8, and the current anomaly detection unit 9 arranged in the facility 100, and installation location information regarding the installation locations of these units.

[0032] The signal processing unit 20 includes, for example, a computer system having a processor and a memory. The computer system functions as the signal processing unit 20 by the processor executing a program stored in the memory.

[0033] The signal processing unit 20 has the functions of the acquisition unit 21 and the sign determination unit 22 described above, and further has the functions of a notification unit 23 and a processing unit 24.

[0034] The acquisition unit 21 acquires information indicating the detection results from the detection unit D1, which is the fire detector 1, the smoke detection unit 2, the temperature detection unit 6, the color vision detection unit 7, the odor detection unit 8, and the current anomaly detection unit 9, via the first communication unit 31. That is, the acquisition unit 21 acquires the detection results from a plurality of detection units D1. The acquisition unit 21 also acquires installation location information regarding the installation location from each of the one or more detection units D1, and stores the acquired installation location information in the storage unit 33. The acquisition unit 21 may acquire installation location information indicating the installation location of the detection unit D1, which is input by the user using the information terminal 50 or the like, from the information terminal 50 via the second communication unit 32.

[0035] The sign determination unit 22 determines a sign of an abnormal event including at least a fire, based on the detection result of the detection unit D1 acquired by the acquisition unit 21. Furthermore, when the sign determination unit 22 determines a sign of an abnormal event, it determines the location where the sign of the abnormal event occurred, based on the installation location information of the detection unit D1 stored in the memory unit 33. Note that the process of determining a sign of an abnormal event by the sign determination unit 22 will be described in more detail in "(2.3) Sign Determination Process".

[0036] The notification unit 23 outputs the determination result of the precursor determination unit 22 to an external system. The external system may include, for example, at least one of an information terminal 50 used by a user who uses the facility 100 and an external server 200 operated by a business or the like that provides a service for remotely monitoring the facility 100. Specifically, the notification unit 23 causes the second communication unit 32 to transmit the determination result of the precursor determination unit 22 to the external system (such as the information terminal 50 and the external server 200). When the precursor determination unit 22 determines the occurrence location of an abnormal event precursor, the notification unit 23 may transmit occurrence location information regarding the occurrence location of the abnormal event precursor to the external system (such as the information terminal 50 and the external server 200).

[0037] The processing unit 24 cooperates with the fire detector 1 to perform processing based on the judgment result of the precursor judgment unit 22. For example, when the precursor judgment unit 22 detects a precursor of an abnormal event, the processing unit 24 adjusts the sensitivity of the fire detector 1 so that the sensitivity with which the fire detector 1 detects a fire is higher than when the precursor of an abnormal event is not detected. As a result, when a precursor of an abnormal event is detected, the sensitivity of the fire detector 1 is set to a higher sensitivity than when the precursor of an abnormal event is not detected, thereby reducing missed detection of fires. Also, when a precursor of an abnormal event is not detected, the sensitivity of the fire detector 1 is set to a lower sensitivity than when the precursor of an abnormal event is detected, thereby reducing false detection of fires.

[0038] Moreover, the signal processing unit 20 (control system 10) has a function of cooperating with the fire extinguishing system 60 arranged in the facility 100. When the precursor judgment unit 22 detects a precursor of a fire, the signal processing unit 20 (control system 10) causes the fire extinguishing system 60 to perform a fire extinguishing operation. Therefore, the control system 10 can cause the fire extinguishing system 60, which performs a fire extinguishing operation after the fire detector 1 detects a fire, to start the fire extinguishing operation at the stage when the precursor judgment unit 22 judges that there is a precursor of a fire. For example, when the precursor judgment unit 22 judges that there is a precursor of a fire based on the smoke detection result by the smoke detection unit 2 or the carbon monoxide detection result by the gas detection unit, the fire extinguishing system 60 may be caused to perform a fire extinguishing operation. In this way, since the fire extinguishing system 60 performs a fire extinguishing operation before the fire detector 1 detects a fire, it is possible to extinguish a fire before the fire detector 1 detects a fire, and if the fire can be completely extinguished before the fire detector 1 is activated, it is possible to eliminate the need for a report process to the fire department and a subsequent process. In addition, when the precursor judgment unit 22 detects a precursor to a fire, the signal processing unit (control system 10) may operate a disaster prevention system other than the fire extinguishing system 60, such as a fire door system or a smoke exhaust system, thereby preventing the spread of the fire.

[0039] (2.2) Operation Description The operation of the control system 10 of this embodiment will be described with reference to Fig. 3 and Fig. 4. Note that the flowchart shown in Fig. 3 is merely an example of a control method according to this embodiment, and the order of processes may be changed as appropriate, and processes may be added or omitted as appropriate.

[0040] The detection units D1 (fire detector 1, smoke detection unit 2, temperature detection unit 6, color vision detection unit 7, odor detection unit 8, and current anomaly detection unit 9) arranged in the facility 100 perform detection operations at appropriate timing. The acquisition unit 21 of the control system 10 performs a process (first process) of acquiring a detection result from the detection unit D1 via the first communication unit 31 (ST1). The acquisition unit 21 may perform a process of acquiring information indicating the detection result from the detection unit D1 every time a certain period of time elapses, or may perform a process of acquiring information indicating the detection result from the detection unit D1 using some event as a trigger. The acquisition unit 21 may also acquire information indicating the detection result transmitted from the detection unit D1 at any timing.

[0041] Next, the sign determination unit 22 performs a process (second process) of determining a sign of an abnormal event including at least a fire, based on the detection result of the detection unit D1 acquired by the acquisition unit 21 (ST2). Note that the determination process by the sign determination unit 22 will be described in more detail in "(2.3) Sign determination process".

[0042] If the sign determining unit 22 determines in the second process that there is no sign of an abnormal event (ST3: No), the control system 10 ends the process.

[0043] If the sign judgment unit 22 judges in the second process that there is a sign of an abnormal event (ST3: Yes), the notification unit 23 of the control system 10 performs a notification process to output the judgment result of the sign judgment unit 22 to the external system (information terminal 50 and external server 200) via the second communication unit 32 (ST4). Note that, if the sign judgment unit 22 judges the occurrence location of the sign, the notification unit 23 may output the judgment result that there is a sign of an abnormal event and occurrence location information regarding the occurrence location of the sign to the external system via the second communication unit 32.

[0044] Furthermore, when the sign determination unit 22 determines that there is a sign of a fire, the signal processing unit 20 of the control system 10 operates the fire extinguishing system 60 to cause the fire extinguishing system 60 to execute fire extinguishing processing (ST5).

[0045] The control system 10 repeatedly executes processes ST1 to ST5 to determine whether or not there are any signs of an abnormal event in the facility 100, and if it determines that there are signs, it can output the determination result of the signs of an abnormal event to an external system (such as the information terminal 50 and external server 200).

[0046] Here, the information terminal 50 that receives the abnormal event precursor determination result from the control system 10 performs processing to notify the abnormal event precursor determination result to the user of the information terminal 50. This enables the user of the information terminal 50 to predict the occurrence of an abnormal event at a stage before the abnormal event occurs based on the abnormal event precursor determination result, and enables rapid response to an abnormal event that is about to occur.

[0047] (2.3) Premonition Judgment Processing The sign determination unit 22 determines whether or not a sign of an abnormal event, including at least a fire, has occurred based on the detection result of the detection unit D1.

[0048] Here, a process in which the sign determination unit 22 determines a sign of a fire based on the result of detection of a fire-related event by the detection unit D1 will be described.

[0049] For example, when at least one of the following conditions is met: the temperature detected by temperature detection unit 6 exceeds a reference value, the concentration of smoke detected by smoke detection unit 2 exceeds a first reference concentration, and the concentration of odor components detected by odor detection unit 8 exceeds a second reference concentration, the sign determination unit 22 determines that there is a sign of a fire. Furthermore, the sign determination unit 22 may determine that there is a sign of a fire when the current abnormality detection unit 9 detects an abnormality in the current flowing through the electric device 90.

[0050] When the sign determination unit 22 determines that there is a sign of an abnormal event based on the detection result by the detection unit D1, it determines the occurrence location of the abnormal event sign based on the installation location information stored in the storage unit 33. Here, the notification unit 23 outputs the determination result that there is a sign of an abnormal event and occurrence location information indicating the occurrence location of the abnormal event sign to the external system, so that the user of the external system can know the location where the abnormal event sign occurred. Therefore, the user of the external system can quickly respond to the abnormal event sign.

[0051] The sign determination unit 22 may also determine a sign of an abnormal event based on the transition of the detection result of the detection unit D1. For example, when the state in which the temperature detected by the temperature detection unit 6 is equal to or higher than the reference value T1 (see FIG. 4) continues for a predetermined duration DT1 or more, the sign determination unit 22 determines that a sign of an abnormal event (fire) has occurred. In this way, the sign determination unit 22 determines a sign of an abnormal event based on the transition of the detection result of the detection unit D1, and does not determine that the detection result of the detection unit D1 is a sign of an abnormal event when it temporarily exceeds the reference value, thereby reducing the possibility of erroneously detecting a sign of an abnormal event. Note that the sign determination unit 22 may also determine that a sign of an abnormal event has occurred for the detection results of the detection units D1 other than the temperature detection unit 6 based on the transition of the detection results of the detection units D1 other than the temperature detection unit 6, thereby reducing erroneous detection of a sign of an abnormal event.

[0052] Here, the sign determination unit 22 may change the way of determining a sign of an abnormal event based on the detection results of each of the multiple detection units D1. For example, when the acquisition unit 21 acquires detection results from multiple temperature detection units 6, the sign determination unit 22 changes the reference value T1 or the duration DT1 for each of the multiple temperature detection units 6. For the temperature detection unit 6 installed in the kitchen of the facility 100, the reference value T1 is set higher and the duration DT1 is set shorter than for the temperature detection unit 6 installed in a space without fire. This reduces the possibility that the sign determination unit 22 will erroneously determine that a temperature rise due to the heat of a cooking utensil is a sign of a fire, and also enables a quick response by determining that a sign of a fire has occurred in a short time when the temperature detected by the temperature detection unit 5 becomes equal to or higher than the reference value T1.

[0053] The acquisition unit 21 also acquires the color discrimination results of the multiple temperature sensors 71 from the color vision detection unit 7, and the sign judgment unit 22 obtains the temperature at the installation location of the multiple temperature sensors 71 based on the color discrimination results of the multiple temperature sensors 71 by the color vision detection unit 7. If the air conditioning system that controls the air conditioning of the space in which the multiple temperature sensors 71 are installed is operating normally, the temperature discriminated from the colors of the multiple temperature sensors 71 will be approximately the same as the set temperature set in the air conditioning system. The sign judgment unit 22 compares the temperature discriminated from the colors of the multiple temperature sensors 71 with the set temperature of the air conditioning system, and if the difference between the two exceeds a predetermined error range, judges that a sign of some abnormal event has occurred in the air conditioning system at a location where the difference from the set temperature is large. In this way, the sign judgment unit 22 judges the installation location where the sign of an abnormal event has occurred based on the color discrimination results of the multiple temperature sensors 71 by the color vision detection unit 7, so that it is possible to take a prompt response to the sign of an abnormal event.

[0054] (3) Variations The above embodiment is merely one of various embodiments of the present disclosure. The above embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved. In addition, the same function as the control system 10 may be embodied in a control method, a computer program, or a non-transitory recording medium on which a program is recorded. The control method according to one aspect includes a first process (ST1) and a second process (ST2). In the first process (ST1), a detection result is obtained from one or more detection units D1 arranged in the facility 100. In the second process (ST2), a sign of an abnormal event is determined based on the detection result of the detection unit D1 obtained in the first process (ST1). The abnormal event includes at least a fire that can be detected by the fire detector 1 arranged in the facility 100. The (computer) program according to one aspect is a program for causing a computer system to execute the above control method.

[0055] Modifications of the above embodiment are listed below. The modifications described below can be applied in appropriate combinations.

[0056] The control system 10 in the present disclosure includes a computer system. The computer system is mainly composed of a processor and a memory as hardware. The function of the control system 10 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be provided by being recorded in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The integrated circuits such as IC or LSI referred to here are called by different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or reconfigure the circuit partition inside the LSI, can also be adopted as a processor. The electronic circuits may be integrated in one chip or distributed among multiple chips. The chips may be integrated in one device or distributed among multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Thus, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0057] Furthermore, it is not essential for the control system 10 that multiple functions in the control system 10 are concentrated in one housing, and the components of the control system 10 may be distributed across multiple housings. Furthermore, at least some of the functions of the control system 10 may be realized by the cloud (cloud computing) or the like.

[0058] (summary) As described above, the control system (10) of the first embodiment includes an acquisition unit (21) and a sign determination unit (22). The acquisition unit (21) acquires detection results from one or more detection units (D1) arranged in the facility (100). The one or more detection units (D1) detect detection targets related to abnormal events. The sign determination unit (22) determines a sign of the abnormal event based on the detection results of the detection units (D1) acquired by the acquisition unit (21). The abnormal event includes at least a fire that can be detected by a fire detector (1) arranged in the facility (100).

[0059] According to this aspect, a precursor to an abnormal event can be detected.

[0060] In the control system (10) of the second embodiment, in the first embodiment, the sign determining section (22) determines a sign of an abnormal event based on a transition of the detection result of the detection section (D1).

[0061] According to this aspect, a precursor to an abnormal event can be detected.

[0062] In the control system (10) of the third aspect, in the first or second aspect, the acquisition unit (21) acquires detection results from the multiple detection units (D1). The sign determination unit (22) changes how to determine a sign of an abnormal event based on the detection results of each of the multiple detection units (D1).

[0063] According to this aspect, a precursor to an abnormal event can be detected.

[0064] The control system (10) of the fourth aspect is in any one of the first to third aspects, and further includes a notification unit (23) that outputs a determination result of the sign determination unit (22) to an external system (50, 200). The acquisition unit (21) acquires installation location information related to installation locations of one or more detection units (D1). The sign determination unit (22) determines an occurrence location where a sign of an abnormal event has occurred based on the installation location information. The notification unit (23) outputs occurrence location information related to the occurrence location of the sign of an abnormal event to the external system (50, 200).

[0065] According to this aspect, a precursor to an abnormal event can be detected.

[0066] The control system (10) of the fifth aspect is any of the first to fourth aspects, further including a processing unit (24) that cooperates with the fire detector (1) to perform processing based on the determination result of the sign determination unit (22).

[0067] According to this aspect, a precursor to an abnormal event can be detected.

[0068] In the control system (10) of the sixth embodiment, when the sign determination unit (22) detects a sign of a fire in the fifth embodiment, the control system (10) operates the disaster prevention system (10) provided in the facility (100).

[0069] According to this aspect, a precursor to an abnormal event can be detected.

[0070] In the control system (10) of the seventh aspect, in any one of the first to sixth aspects, the one or more detection units (D1) include a temperature detection unit (6) that detects temperature. The sign determination unit (22) determines that a sign of an abnormal event has occurred when a state in which the temperature detected by the temperature detection unit (6) is equal to or higher than a reference value (T1) continues for a predetermined duration (DT1) or longer.

[0071] According to this aspect, a precursor to an abnormal event can be detected.

[0072] In the control system (10) of the eighth aspect, in any one of the first to seventh aspects, a plurality of temperature sensors (71) are installed at different installation locations. Each of the plurality of temperature sensors (71) changes color depending on temperature. The one or more detection units (D1) include a color vision detection unit (7) that distinguishes the color of the plurality of temperature sensors (71). The sign determination unit (22) determines the installation location where a sign of an abnormal event has occurred, based on a result of the color vision detection unit (7) distinguishing the colors of the plurality of temperature sensors (71).

[0073] According to this aspect, a precursor to an abnormal event can be detected.

[0074] In the control system (10) of the ninth aspect, in any one of the first to eighth aspects, the one or more detection units (D1) include at least one of a smoke detection unit (2) that detects smoke and an odor detection unit (8) that detects odor.

[0075] According to this aspect, a precursor to an abnormal event can be detected.

[0076] In the control system (10) of the tenth aspect, in any one of the first to ninth aspects, the one or more detection units (D1) include a current abnormality detection unit (9). The current abnormality detection unit (9) detects an abnormality in a current flowing through an electric device (90) used in the facility (100) based on a current waveform of a current flowing through the electric device.

[0077] According to this aspect, a precursor to an abnormal event can be detected.

[0078] The control method of the eleventh aspect includes a first process and a second process. In the first process, detection results are obtained from one or more detection units (D1) arranged in a facility (100). In the second process, based on the detection results of the detection units (D1) obtained in the first process, a precursor of an abnormal event including at least a fire detectable by a fire detector (1) arranged in the facility (100) is determined.

[0079] According to this aspect, a precursor to an abnormal event can be detected.

[0080] A program according to a twelfth aspect is a program for causing a computer system to execute the control method according to the eleventh aspect.

[0081] According to this aspect, a precursor to an abnormal event can be detected.

[0082] Without being limited to the above-mentioned aspects, various configurations (including modified examples) of the control system (10) according to the above-mentioned embodiment can be embodied as a control method for the control system (10), a (computer) program, or a non-transitory recording medium having a program recorded thereon, or the like.

[0083] The configurations according to the second to ninth aspects are not essential components of the control system (10) and can be omitted as appropriate. [Explanation of symbols]

[0084] 1 Fire detector 2 Smoke detector 6 Temperature detection unit 7 Color vision detection unit 8. Odor detection unit 9. Current Abnormality Detection Unit 10. Control System 21 Acquisition Department 22 Omen Judgment Department 23 Notification Department 24 Processing section 50 External Systems 60 Fire Extinguishing System 71 Thermosensor 90 Electrical Equipment 100 Facilities 200 External Systems D1 Detection unit DT1 Duration T1 Reference Value

Claims

1. an acquisition unit that is arranged in the facility and acquires detection results from one or more detection units that detect detection targets related to the abnormal event; a sign determination unit that determines a sign of the abnormal event based on the detection result of the detection unit acquired by the acquisition unit; a processing unit that performs processing based on a result of the determination by the precursor determination unit in cooperation with a fire detector installed in the facility, The abnormal event includes at least a fire that can be detected by the fire detector disposed in the facility, The one or more detection units do not include an odor detection unit that detects an odor of the facility, but include a temperature detection unit that detects temperature, the sign determination unit determines that a sign of the abnormal event has occurred when a state in which the temperature detected by the temperature detection unit is equal to or higher than a reference value continues for a predetermined duration or longer; The processing unit performs the process of setting the sensitivity of the fire detector to a higher sensitivity when the precursor determination unit detects a precursor of the abnormal event compared to when the precursor of the abnormal event is not detected. Control system.

2. The temperature detection unit is located outside the facility and detects a temperature near an outer wall of the facility. The control system of claim 1 .

3. The precursor judgment unit judges a precursor of the abnormal event based on a transition of the detection results of the one or more detection units.

3. A control system according to claim 1 or 2.

4. The acquisition unit acquires detection results from a plurality of the detection units, the sign determination unit changes a manner in which a sign of the abnormal event is determined based on a detection result of each of the plurality of detection units. A control system according to any one of claims 1 to 3.

5. Further comprising a notification unit that outputs a judgment result of the precursor judgment unit to an external system, The acquisition unit acquires installation location information regarding installation locations of the one or more detection units, The sign determination unit determines a location where a sign of the abnormal event has occurred based on the installation location information, The notification unit outputs occurrence location information regarding a location where a precursor of the abnormal event occurs to the external system. A control system according to any one of claims 1 to 4.

6. When the precursor judgment unit detects a precursor of a fire, the control system activates a disaster prevention system installed in the facility. A control system according to any one of claims 1 to 5.

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