Safety information notification system, safety information notification method, and safety information notification program

Abstract

To provide a safety information notification system that realizes a system that enables confirmation of safety of a person in a building from outside the building even when a general line communication network is unavailable.SOLUTION: A safety information notification system includes: notification reception means for receiving disaster notification; input reception means capable of receiving, via an input reception device disposed in or near the building, an input based on an operation of at least a person who is in the building when disaster notification is received; and alarm display control means for displaying, when the input is not received within a predetermined period of time after the receipt of the disaster notification, an alarm on a display device arranged inside or near the building so as to be visible from outside the building.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a safety information notification system, a safety information notification method, and a safety information notification program. [Background technology]

[0002] There are known technologies for confirming the safety of disaster victims after a disaster occurs. One example is the safety confirmation system described in Patent Document 1. In the safety confirmation system of Patent Document 1, safety information sent from a disaster victim's terminal is notified to a safety confirmation terminal by telephone or email. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-303254 Summary of the Invention [Problem to be solved by the invention]

[0004] In disaster-stricken areas, it is important to confirm the safety of people inside buildings such as homes, hospitals, and schools from outside the buildings. However, when a disaster occurs, it is possible that a communication network using public lines used by an unspecified number of people may fail or become congested due to increased use of public lines. Therefore, even if the safety confirmation system described in Patent Document 1 places a victim terminal inside the building and a safety confirmation terminal outside the building, there is a problem in that it may not be possible to confirm the safety of people inside the building from outside the building.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and one exemplary purpose thereof is to provide a technology that enables confirmation of the safety of people present in a building from outside the building even when a general line communication network is unavailable. [Means for solving the problem]

[0006] A safety information notification system according to an exemplary aspect of the present disclosure includes a notification receiving means for receiving a disaster notification, an input receiving means capable of receiving input based on operations of at least a person who was in the building at the time the disaster notification was received via an input receiving device located within the building or in the vicinity of the building, and an alarm display control means for displaying an alarm on a display device located within the building or in the vicinity of the building so as to be visible from outside the building if the input is not received within a predetermined period of time after the disaster notification is received.

[0007] A safety information notification method according to an exemplary aspect of the present disclosure includes a notification receiving process in which at least one processor receives a disaster notification; an input receiving process in which the at least one processor can receive, via an input receiving device located within or near the building, input based on operations of at least a person who was within the building at the time the disaster notification was received; and an alarm display control process in which the at least one processor displays an alarm on a display device located within or near the building so as to be visible from outside the building if the input is not received within a predetermined period of time since the receipt of the disaster notification.

[0008] A safety information notification program according to an exemplary aspect of the present disclosure is a program that causes at least one processor to function as a safety information notification system, and causes the at least one processor to function as: a notification receiving means that receives a disaster notification; an input receiving means that is capable of receiving input based on operations of at least a person who was in the building at the time the disaster notification was received via an input receiving device located within or near the building; and an alarm display control means that, if the input is not received within a predetermined period of time after the disaster notification was received, displays an alarm on a display device located within or near the building that is visible from outside the building. [Effects of the Invention]

[0009] According to one exemplary aspect of the present disclosure, an exemplary effect is achieved in that a technology can be provided that enables the safety of people present in a building to be confirmed from outside the building even when a general line communication network is not available. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a block diagram illustrating a configuration of a safety information notification system according to the present disclosure. [Figure 2] 1 is a flow diagram showing the flow of a safety information notifying method according to the present disclosure. [Figure 3] 1 is a schematic diagram showing an overview of a safety information notification system according to the present disclosure. [Figure 4] 1 is a block diagram illustrating a configuration of a safety information notification system according to the present disclosure. [Figure 5] 1 is a flow diagram showing the flow of a safety information notifying method according to the present disclosure. [Figure 6] 1 is a block diagram illustrating a configuration of a safety information notification system according to the present disclosure. [Figure 7] 1 is a flow diagram showing the flow of a safety information notifying method according to the present disclosure. [Figure 8] 1 is a flow diagram showing the flow of a safety information notifying method according to the present disclosure. [Figure 9] 1 is a flow diagram showing the flow of a safety information notifying method according to the present disclosure. [Figure 10] 1 is a flow diagram showing the flow of a safety information notifying method according to the present disclosure. [Figure 11] 1 is a block diagram illustrating a configuration of a safety information notification system according to the present disclosure. [Figure 12] 1 is a block diagram illustrating a configuration of a safety information notification system according to the present disclosure. [Figure 13] 1 is a block diagram illustrating a configuration of a safety information notification system according to the present disclosure. [Figure 14] 1 is a block diagram illustrating a configuration of a safety information notification system according to the present disclosure. [Figure 15]1 is a block diagram showing the hardware configuration of a computer functioning as each device included in a safety information notification system according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0011] The following are examples of embodiments of the present invention. However, the present invention is not limited to the exemplary embodiments shown below, and various modifications are possible within the scope of the claims. For example, embodiments obtained by appropriately combining the technologies (part or all of the products or methods) employed in the exemplary embodiments shown below may also be included in the scope of the present invention. Furthermore, embodiments obtained by appropriately omitting some of the technologies employed in the exemplary embodiments shown below may also be included in the scope of the present invention. Furthermore, the effects mentioned in the exemplary embodiments shown below are examples of effects expected in the exemplary embodiments, and do not define the scope of the present invention. In other words, embodiments that do not exhibit the effects mentioned in the exemplary embodiments shown below may also be included in the scope of the present invention.

[0012] First Exemplary Embodiment A first exemplary embodiment, which is an example of an embodiment of the present invention, will be described in detail with reference to the drawings. This exemplary embodiment is a basic form for each of the exemplary embodiments described below. Note that the scope of application of each technique employed in this exemplary embodiment is not limited to this exemplary embodiment. That is, each technique employed in this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise. Furthermore, each technique shown in the drawings referenced to explain this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise.

[0013] (Configuration of safety information notification system 100) The configuration of the safety information notification system 100 will be described with reference to Fig. 1. Fig. 1 is a block diagram showing the configuration of the safety information notification system 100. As shown in Fig. 1, the safety information notification system 100 includes a notification receiving unit 11, an input receiving unit 12, and an alarm display control unit 21. The notification receiving unit 11, the input receiving unit 12, and the alarm display control unit 21 are an example of a configuration that realizes a notification receiving means, an input receiving means, and an alarm display control means. For example, if the safety information notification system 100 includes at least one processor, the notification receiving unit 11, the input receiving unit 12, and the alarm display control unit 21 are realized by the at least one processor executing a program.

[0014] The notification receiving unit 11 receives a disaster notification. The disaster notification is distributed simultaneously to devices in an area related to the disaster. For example, the disaster notification may be distributed simultaneously via disaster prevention radio, from a mobile communication base station, or via a public line. Examples of disaster notifications include earthquake early warnings, tsunami warnings, volcanic eruption warnings, and evacuation advisories due to natural disasters such as typhoons or localized heavy rain. The disaster notification may also be based on information issued by the Japan Meteorological Agency, various government ministries and agencies, local governments, etc. However, the disaster notification is not limited to the above examples. The input receiving unit 12 can receive inputs based on operations by at least a person who was in the building when the disaster notification was received via an input receiving device located within or near the building. If no input is received within a predetermined period of time after the disaster notification is received, the alarm display control unit 21 displays an alarm on a display device located within or near the building that is visible from outside the building.

[0015] (Procedure for notifying safety information) The flow of the safety information notifying method S1 will be described with reference to Fig. 2. Fig. 2 is a flow diagram showing the flow of the safety information notifying method S1. As shown in Fig. 2, the safety information notifying method S1 includes a notification reception process S11, an input reception process S12, and an alarm display control process S13.

[0016] In notification reception processing S11, at least one processor (for example, notification receiving unit 11) receives a disaster notification. In input reception processing S12, at least one processor (for example, input receiving unit 12) can receive input based on operations of people who were in the building at least when the disaster notification was received, via an input receiving device placed in or near the building. In alarm display control processing S13, if no input is received within a predetermined period of time after the receipt of the disaster notification, at least one processor (for example, alarm display control unit 21) displays an alarm on a display device placed in or near the building so as to be visible from outside the building.

[0017] (Effects of the safety information notification system 100 and the safety information notification method S1) As described above, in the safety information notification system 100 and the safety information notification method S1, the notification receiving unit 11 receives a disaster notification, the input receiving unit 12 is capable of receiving input based on operations of at least a person who was in the building at the time of receiving the disaster notification via an input receiving device located in or near the building, and the alarm display control unit 21 is configured to display an alarm on a display device located in or near the building and visible from outside the building if the input is not received within a predetermined period of time after receiving the disaster notification. Therefore, the alarm can be displayed on the display device regardless of whether a public line communication network available to the general public is available after receiving the disaster notification. Therefore, the safety information notification system 100 makes it possible to check the safety of people in a building from outside the building even if a public line communication network is unavailable.

[0018] Second Exemplary Embodiment A second exemplary embodiment, which is one example of an embodiment of the present invention, will be described in detail with reference to the drawings. Components having the same functions as those described in the above exemplary embodiment will be assigned the same reference numerals, and their description will be omitted as appropriate. The scope of application of each technology employed in this exemplary embodiment is not limited to this exemplary embodiment. That is, each technology employed in this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical hindrance occurs. Furthermore, each technology shown in each drawing referenced to explain this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical hindrance occurs.

[0019] (Outline of the Safety Information Notification System 100A) An overview of the safety information notification system 100A will be described with reference to Fig. 3. Fig. 3 is a schematic diagram showing an overview of the safety information notification system 100A. In the following description, a case where an emergency earthquake alert, which is an example of a disaster notification, is received will be described. In addition, the emergency earthquake alert will be described as being transmitted from an administrative agency such as a national or local government via a municipal disaster prevention administrative radio system, as an example.

[0020] As shown in FIG. 3, the safety information notifying system 100A includes a household receiver 1 and an intercom unit 2 at the entrance.

[0021] The individual receiver 1 is a receiver that receives disaster notifications from the administrative agency Pa via a municipal disaster prevention radio system. The individual receiver 1 may be capable of communication via a public line. The individual receiver 1 is located within a building 8. The individual receiver 1 may be located not only inside the building 8 but also in the vicinity of the building 8. The vicinity of the building 8 is preferably a location that can accept input based on operations by people who were in the building 8 at the time the disaster notification was received. For example, the individual receiver 1 may be located on the exterior wall of the building 8, on the premises on which the building 8 is located, or outside the fence that separates the premises. In this case, if people who were in the building 8 at the time of the disaster are safe, they can operate the individual receiver 1 located in the vicinity of the building 8. For example, the building 8 is a residence where people live. The building 8 does not necessarily have to be a building where people live, as long as it is a building where people stay at least temporarily. Examples of such buildings 8 include, but are not limited to, police stations, clinics, schools, commercial buildings, and office buildings.

[0022] The individual household receiver 1 is equipped with a safety button 3. The safety button 3 is an example of an input receiving device. The safety button 3 is a button that can be operated by a person in the building 8. The safety button 3 can receive input by a button operation by a person in the building 8. When the safety button 3 is pressed, an alarm is not displayed on the display device 4. For example, if a person in the building 8 is unable to move or needs rescue, the person cannot press the safety button 3, and therefore an alarm is displayed on the display device 4.

[0023] The entrance intercom sub-unit 2 is placed outside the entrance of the building 8. The entrance intercom sub-unit 2 is capable of communicating with the individual household receiver 1. The entrance intercom sub-unit 2 and the individual household receiver 1 are connected by wire or wirelessly. An example of a network used for communication between the entrance intercom sub-unit 2 and the individual household receiver 1 is a wired or wireless LAN (Local Area Network), but is not limited to this.

[0024] The entrance intercom unit 2 is equipped with a display device 4. The display device 4 is capable of displaying an alarm. Examples of the display device 4 include, but are not limited to, a red light or a display. The alarm display mode is not limited to the above-mentioned examples, as long as it allows the safety checker Rs (third party) to recognize that someone inside the building 8 may not be safe. Furthermore, the display device 4 is not limited to being provided in the entrance intercom unit 2. The display device 4 may be located near the building 8, in a place where the alarm display can be seen by the safety checker Rs outside the building 8. For example, the display device 4 may be attached to the exterior wall of the building 8. Furthermore, the display device 4 may be located inside the building 8, as long as it is visible to the safety checker Rs outside the building 8. For example, the display device 4 may be located near a window inside the building 8, facing outward.

[0025] The safety checker Rs checks the safety of people in the building 8 based on whether or not an alarm is displayed on the display device 4. The safety checker Rs is someone who checks the safety of people in buildings in the area when a disaster occurs, and is, for example, a firefighter or a member of the Self-Defense Forces, but may also be a neighbor or a passerby. If an alarm is displayed on the display device 4 a predetermined period after the receipt of the Earthquake Early Warning, the safety checker Rs can recognize that there may be people (victims) in need of rescue in the building 8. If no alarm is displayed on the display device 4 a predetermined period after the receipt of the Earthquake Early Warning, the safety checker Rs can recognize that there is a high possibility that people in the building 8 are safe.

[0026] (Configuration of safety information notification system 100A) The configuration of the safety information notification system 100A will be described with reference to Fig. 4. Fig. 4 is a block diagram showing the configuration of the safety information notification system 100A. As shown in Fig. 4, the household receiver 1 includes a control unit 10. The control unit 10 controls each unit of the household receiver 1. The control unit 10 includes a transmission unit 13 in addition to the notification receiving unit 11 and input receiving unit 12 included in the exemplary embodiment 1. The transmission unit 13 transmits various information to the front door intercom unit 2. The transmission unit 13 transmits, for example, information related to an emergency earthquake alert to the front door intercom unit 2.

[0027] The front door intercom unit 2 includes a control unit 20. The control unit 20 controls all the units of the front door intercom unit 2. In addition to the alarm display control unit 21 included in the exemplary embodiment 1, the control unit 20 also includes a measurement unit 22 and a receiving unit 23. The measurement unit 22 measures the time that has elapsed since the Earthquake Early Warning was received. Note that instead of being realized as a function of the control unit 10, the measurement unit 22 may be realized, for example, by a physical timer component whose measurement start, measurement end, change of measurement time, etc. can be controlled by the control unit 10. The receiving unit 23 receives various information transmitted from the individual household receiver 1. For example, the receiving unit 23 receives information related to the Earthquake Early Warning from the individual household receiver 1.

[0028] (Flow of Safety Information Notification Method S1A) The safety information notifying system 100A configured as above executes a safety information notifying method S1A. The flow of the safety information notifying method S1A will be described with reference to Fig. 5. Fig. 5 is a flow chart showing the flow of the safety information notifying method S1A. As shown in Fig. 5, the safety information notifying method S1A includes steps S111 to S117.

[0029] In step S111, the notification receiving unit 11 receives an emergency earthquake alert transmitted via the municipal disaster prevention administrative radio from the administrative agency Pa. Step S111 is an example of a notification receiving process.

[0030] In step S112, the transmitting unit 13 transmits the information relating to the Earthquake Early Warning received by the notification receiving unit 11 to the front door sub-intercom unit 2. The receiving unit 23 receives the information relating to the Earthquake Early Warning from the transmitting unit 13.

[0031] In step S113, the measuring unit 22 measures the elapsed time, which is the time that has passed since the Earthquake Early Warning was received, based on the information related to the Earthquake Early Warning received by the receiving unit 23.

[0032] In step S114, the input receiving unit 12 determines whether or not an input has been received from the safety button 3. If an input has been received from the safety button 3 (YES in step S114), step S115 is executed. If an input has not been received from the safety button 3 (NO in step S114), step S116 is executed. Step S114 is an example of an input receiving process.

[0033] In step S115, the measurement unit 22 ends the measurement of the elapsed time.

[0034] In step S116, the alarm display control unit 21 determines whether or not a predetermined period has elapsed since the reception of the Earthquake Early Warning. The predetermined period is the period from the reception of the Earthquake Early Warning to the display of an alarm on the display device 4 (hereinafter simply referred to as the predetermined period). The alarm display control unit 21 determines whether or not the predetermined period has elapsed based on the time measured by the measurement unit 22. If the predetermined period has not elapsed (NO in step S116), step S113 is executed again. If the predetermined period has elapsed (YES in step S116), step S117 is executed.

[0035] In step S117, the alarm display control unit 21 displays the alarm on the display device 4. Steps S116 and S117 are an example of an alarm display control process.

[0036] (Effects of the Safety Information Notification System 100A) As described above, safety information notification system 100A is configured such that individual household receiver 1 receives an Earthquake Early Warning, and if no input based on the operation of at least a person who was inside building 8 at the time the Earthquake Early Warning was received via the safety button is received within a predetermined period of time after the Earthquake Early Warning was received, an alarm is displayed on display device 4 of entrance intercom unit 2. Therefore, the safety of people in building 8 can be confirmed from outside building 8 regardless of whether a general line communication network available to the general public is available after the Earthquake Early Warning is received.

[0037] [Variation 1] (Configuration of safety information notification system 100B) The configuration of safety information notification system 100B, which is a modification of safety information notification system 100A, will be described with reference to Fig. 6. Fig. 6 is a block diagram showing the configuration of safety information notification system 100B. As shown in Fig. 6, safety information notification system 100B includes a household receiver 1 and a front door intercom unit 2B. Below, differences from safety information notification system 100A will be described, and similar points will not be described repeatedly.

[0038] The entrance intercom 2B includes a control unit 20B, a display device 4, and an absence memory unit 5. The control unit 20B includes an absence information acquisition unit 24 that can acquire absence information. The absence information acquisition unit 24 is an example of a configuration that realizes absence information acquisition means. The absence information indicates that no one is present in the building 8. Examples of absence information include, but are not limited to, absence mode information set by operating the security system, GPS information on a terminal device carried by a person entering or leaving the building 8, and information input by a terminal device carried by a person entering or leaving the building 8. The absence information is received by the individual household receiver 1 and transmitted to the entrance intercom via the transmission unit 13. The individual household receiver 1 may receive the absence information via a general line or via a municipal disaster prevention administrative radio. When the absence information acquisition unit 24 acquires the absence information from the individual household receiver 1, it stores the information in the absence memory unit 5. The absence information acquiring unit 24 is not limited to acquiring absence information received by the individual household receiver 1 from the outside, and may acquire absence information from the outside without going through the individual household receiver 1.

[0039] (Safety Information Notification Method S1B Flow) The safety information notifying system 100B configured as above executes a safety information notifying method S1B. The flow of the safety information notifying method S1B will be described with reference to FIG. 7. FIG. 7 is a flow diagram showing the flow of the safety information notifying method S1B. As shown in FIG. 7, the safety information notifying method S1B includes steps S121 to S129. Below, differences from the safety information notifying method S1A will be described, and similar points will not be described repeatedly. Steps S121 to S126 and step S128 are respectively similar to steps S111 to S117 of the safety information notifying method S1A.

[0040] In safety information notification method S1B, if a predetermined period has elapsed (YES in step S126), step S127 is executed. In step S127, absence information acquisition unit 24 determines whether or not absence information is stored in absence memory unit 5. If absence information is not stored (NO in step S127), step S128 is executed. If absence information is stored (YES in step S127), absence information acquisition unit 24 acquires the absence information stored in absence memory unit 5. After absence information acquisition unit 24 acquires the absence information, step S129 is executed.

[0041] In step S129, the alarm display control unit 21 displays an absence display on the display device 4, indicating that no one is present in the building 8. The absence display is a display mode different from the alarm display. In step S129, the alarm display control unit 21 does not display an alarm on the display device 4 even if no input is received from the safety button 3 before the predetermined period has elapsed.

[0042] (Effects of Modification 1) As described above, safety information notification system 100B further includes absence information acquisition unit 24 that can acquire absence information indicating that no one is present in the building, and alarm display control unit 21 is configured not to display an alarm on display device 4 if absence information has been acquired before the reception of an Earthquake Early Warning (an example of a disaster notification), even if no input is received within a predetermined period of time since the reception of the Earthquake Early Warning. Therefore, an alarm will not be displayed on display device 4 even if there is no one in need of rescue within building 8. Therefore, safety information notification system 100B has the effect of improving the accuracy of alarms in addition to the effects achieved by safety information notification system 100.

[0043] [Variation 2] (Safety Information Notification Method S1C Flow) The configuration of safety information notifying method S1C, which is a modification of safety information notifying method S1A, will be described with reference to Fig. 8. Fig. 8 is a flow diagram showing the flow of safety information notifying method S1C. Below, differences from safety information notifying method S1A will be described, and similar points will not be described repeatedly. Steps S131 to S133 and steps S136 to S139 of safety information notifying method S1C are the same as steps S111 to S117 of safety information notifying method S1A, respectively.

[0044] As shown in FIG. 8, in step S134, the notification receiving unit 11 determines whether or not an alarm no longer necessary notification sent from the administrative agency Pa has been received. The alarm no longer necessary notification indicates that an alarm is not necessary. The alarm no longer necessary notification is sent when the administrative agency Pa determines that rescue is not necessary, for example, when the earthquake scale is small and people can continue living their lives as normal. The alarm no longer necessary notification is a notification that is broadcast to the target area via the municipal disaster prevention administrative radio. If an alarm no longer necessary notification has been received (YES in S134), step S135 is executed. If an alarm no longer necessary notification has not been received (NO in S134), step S136 is executed.

[0045] In step S135, the measurement unit 22 ends the measurement of the elapsed time that it had been measuring. In step S135, the transmission unit 13 transmits information indicating that an alarm-no-necessity notification has been received to the reception unit 23. The measurement unit 22 ends the measurement of the elapsed time based on the alarm-no-necessity notification received by the reception unit 23. In step S135, the alarm display control unit 21 does not display an alarm on the display device 4 even if no input is received from the safety button 3 before the predetermined period has elapsed.

[0046] (Effects of Modification 2) As described above, in safety information notification method S1C, notification receiving unit 11 can further receive an alarm-free notification indicating that an alarm is unnecessary, and alarm display control unit 21 is configured to not display an alarm on display device 4 when an alarm-free notification is received after receiving an Earthquake Early Warning (an example of a disaster notification), even if no input is received within a predetermined period of time after receiving the Earthquake Early Warning. Therefore, if the earthquake is small and people can go about their daily lives as usual, there is no need for people in building 8 to press safety button 3. Therefore, according to variant 2 of safety information notification system 100A, in addition to the effects of safety information notification system 100, the effect of reducing the burden on people in building 8 when the damage is minor can be obtained.

[0047] [Variation 3] (Safety Information Notification Method S1D Flow) The configuration of safety information notifying method S1D, which is a modification of safety information notifying method S1A, will be described with reference to Fig. 9. Fig. 9 is a flow diagram showing the flow of safety information notifying method S1D. Below, differences from safety information notifying method S1A will be described, and similar points will not be described repeatedly. Steps S141, S146, S147, and S149 of safety information notifying method S1D are similar to step S111, steps S114 to S115, and step S117 of safety information notifying method S1A, respectively.

[0048] As shown in Fig. 9, in step S142, the notification receiving unit 11 determines whether or not the Earthquake Early Warning includes disaster scale information indicating the scale of the earthquake. For example, the notification receiving unit 11 determines whether or not the Earthquake Early Warning includes information indicating the occurrence of an earthquake of magnitude 8 or greater. If the Earthquake Early Warning includes information indicating the occurrence of an earthquake of magnitude 8 or greater (YES in S142), step S143 is executed. If the Earthquake Early Warning does not include information indicating the occurrence of an earthquake of magnitude 8 or greater (NO in S142), step S144 is executed.

[0049] In step S143, the transmitting unit 13 transmits information regarding the length of the predetermined period to be set in the case of a magnitude of 8 to the receiving unit 23. The alarm display control unit 21 acquires information regarding the length of the predetermined period to be set in the case of a magnitude of 8 from the receiving unit 23. The length of the predetermined period may be set to 5 hours, for example, when the Earthquake Early Warning includes information indicating a magnitude of 8 or greater, or may be set to the initial setting value of 10 hours when the Earthquake Early Warning includes information indicating a magnitude of less than 8. Note that the transmitting unit 13 may transmit only information regarding the magnitude.

[0050] In step S148, the alarm display control unit 21 determines whether the predetermined period has elapsed based on the length of the predetermined period corresponding to the magnitude included in the Earthquake Early Warning. If the Earthquake Early Warning contains information on a magnitude of less than 8, the alarm display control unit 21 sets the length of the predetermined period to an initial setting value. If the Earthquake Early Warning contains information on a magnitude of 8 or greater, the alarm display control unit 21 changes the length of the predetermined period from the initial setting value to the length of the predetermined period corresponding to a magnitude of 8. If the Earthquake Early Warning contains information on a magnitude of 8 or greater, the alarm display control unit 21 determines whether the predetermined period has elapsed based on the changed length of the predetermined period.

[0051] (Effects of Modification 3) As described above, in the safety information notification method S1D, the earthquake early warning (an example of a disaster notification) includes a magnitude (an example of disaster scale information) indicating the size of the earthquake, and the alarm display control unit 21 is configured to change the length of the predetermined period based on the magnitude when an earthquake early warning including the magnitude is received. Therefore, according to the third modification of the safety information notification system 100A, in addition to the effects of the safety information notification system 100, the safety confirmer Rs can confirm the safety at an appropriate time period according to the scale of the disaster.

[0052] [Variation 4] (Safety Information Notification Method S1E Flow) The configuration of safety information notifying method S1E, which is a modification of safety information notifying method S1A, will be described with reference to Fig. 10. Fig. 10 is a flow diagram showing the flow of safety information notifying method S1E. Below, differences from safety information notifying method S1A will be described, and similar points will not be described repeatedly. Steps S151 to S153, step S156, step S157, and S159 of safety information notifying method S1E are the same as steps S111 to S115 and step S117 of safety information notifying method S1A, respectively.

[0053] As shown in FIG. 10, in step S154, the notification receiving unit 11 determines whether or not a period change notification has been received from the administrative agency Pa. The period change notification is a notification instructing a change in the length of the predetermined period. The period change notification is a notification broadcast to the target area via the municipal disaster prevention administrative radio. The period change notification may instruct the length of the predetermined period to be longer than the initial setting value, or may instruct the length of the predetermined period to be shorter than the initial setting value. The period change notification is issued, for example, in cases where the administrative agency Pa determines that the damage caused by the earthquake is expected to be small but rescue is necessary, or where the alarm will be displayed at night. If a period change notification has been received (YES in step S154), step S155 is executed. If a period change notification has not been received (NO in step S154), step S156 is executed.

[0054] In step S155, the transmitting unit 13 transmits information regarding the length of the predetermined period based on the period change notification to the receiving unit 23. The alarm display control unit 21 acquires, from the receiving unit 23, information regarding the length of the predetermined period based on the period change notification.

[0055] In step S158, if the alarm display control unit 21 has not received a period change notification, it determines whether the predetermined period has elapsed based on the initial setting value of the length of the predetermined period. If the alarm display control unit 21 has received a period change notification, it changes the length of the predetermined period from the initial setting value to the value of the length of the predetermined period based on the period change notification. If the alarm display control unit 21 has received a period change notification, it determines whether the predetermined period has elapsed based on the length of the predetermined period after the change.

[0056] If the household receiver 1 is capable of information communication via a public line, the control unit 10 may determine whether or not communication via the public line has been interrupted. If the control unit 20 determines that communication via the public line has been interrupted, the control unit 10 may execute steps S153 to S159.

[0057] (Effects of Modification 4) As described above, in the safety information notifying method S1E, the notification receiving unit 11 can further receive a period change notification that instructs a change in the length of the predetermined period, and the alarm display control unit 21 is configured to change the length of the predetermined period based on the period change notification when the period change notification is received after receiving an Earthquake Early Warning (an example of a disaster notification). Therefore, an alarm can be displayed on the display device 4 in accordance with the damage situation caused by the disaster. Therefore, according to the fourth modification of the safety information notifying system 100A, in addition to the effects achieved by the safety information notifying system 100, an effect of being able to display an alarm in accordance with the timing of the dispatch of the safety confirmer Rs can be obtained.

[0058] [Variation 5] (Configuration of safety information notification system 100C) The configuration of safety information notification system 100C, which is a modification of safety information notification system 100A, will be described with reference to Fig. 11. Fig. 11 is a block diagram showing the configuration of safety information notification system 100C. As shown in Fig. 11, safety information notification system 100C includes a household receiver 1, a front door intercom unit 2C, and a locking device 6. Below, differences from safety information notification system 100A will be described, and similar points will not be described repeatedly.

[0059] The control unit 20C of the entrance sub-intercom unit 2C has the same configuration as the control unit 20 of the entrance sub-intercom unit 2, and also includes a lock change unit 25. The lock change unit 25 controls the locking device 6 to either the first state or the second state. The lock change unit 25 is an example of a configuration that realizes a lock change means.

[0060] The locking device 6 is a device attached to the door of the building 8. The locking device 6 is a device that can be controlled externally to either a first state or a second state. The locking device 6 enters the first state by receiving a control signal indicating the first state from the outside. The locking device 6 enters the second state by receiving a control signal indicating the second state from the outside. The first state is a state in which the door can be unlocked with the first key, but cannot be unlocked with the second key. The second state may be a state in which the door can be unlocked with the first key, or may not be unlocked with the first key.

[0061] For example, if the first and second keys are keys that are unlocked when the shape of the key and the shape of the keyhole match, the first state and the second state may be states in which the shapes of the keyholes are different from each other. Also, if the first and second keys are keys that are unlocked by a personal identification number, the first state and the second state may be states in which the personal identification numbers are different from each other. Note that the first and second keys and the first and second states are not limited to the examples described above.

[0062] The first key may be a key carried by a person who normally enters and leaves the building 8 before an earthquake occurs. The second key may be, for example, a key that is permitted for use by the safety checking person Rs in an emergency. The locking device 6 is in the first state before receiving an emergency earthquake warning notification.

[0063] The locking device 6 can communicate with the front door intercom unit 2C. The locking device 6 and the front door intercom unit 2C are connected by wire or wirelessly. An example of a network used for communication between the front door intercom unit 2C and the individual household receiver 1 is a wired or wireless LAN (Local Area Network), but is not limited to this.

[0064] When the alarm display control unit 21 displays an alarm on the display device 4 after a predetermined period of time has elapsed since the reception of the earthquake early warning, the lock change unit 25 transmits a control signal indicating the second state to the locking device 6. When the locking device 6 receives the control signal indicating the second state from the entrance intercom unit 2C, it changes its own state from the first state to the second state.

[0065] (Effects of Modification 5) As described above, in the safety information notification system 100C, the door of the building 8 is fitted with a locking device 6 that can be controlled to one of a first state in which the door can be unlocked with a first key but cannot be unlocked with a second key, and a second state in which the door can be unlocked with a second key. The locking device 6 is in the first state before an earthquake early warning (an example of a disaster notification) is received. The lock change unit 25 is configured to control the locking device 6 to the second state when an alarm is to be displayed after a predetermined period of time has elapsed. Therefore, even if the door of the building 8 is locked when the safety confirmer Rs visually confirms that the safety information is not being displayed on the display device 4 after the predetermined period of time has elapsed, the locking device 6 can be unlocked with the second key. Therefore, the safety information notification system 100C provides the effect that the safety confirmer Rs can enter and exit the building 8 even when the door of the building 8 is locked, in addition to the effects of the safety information notification system 100.

[0066] [Variation 6] (Configuration of safety information notification system 100D) The configuration of safety information notification system 100D, which is a modification of safety information notification system 100A, will be described with reference to Fig. 12. Fig. 12 is a block diagram showing the configuration of safety information notification system 100D. As shown in Fig. 12, safety information notification system 100D includes a master intercom 1D and an entrance slave intercom 2. Below, differences from safety information notification system 100A will be described, and similar points will not be described repeatedly.

[0067] (Effects of Modification 6) In this modified example, each functional block that is placed in the individual household receiver 1 in the safety information notification system 100A is placed in the master intercom 1D. As each functional block has been described above, detailed explanation will not be repeated. In this modified example, the master intercom 1D placed in the building 8 corresponding to the entrance sub-intercom 2 is given the functions of the individual household receiver 1, which has the effect of eliminating the need to place a separate individual household receiver in the building 8, etc., thereby simplifying the system configuration.

[0068] [Variation 7] (Configuration of safety information notification system 100E) The configuration of safety information notification system 100E, which is a modification of safety information notification system 100A, will be described with reference to Fig. 13. Fig. 13 is a block diagram showing the configuration of safety information notification system 100E. As shown in Fig. 13, safety information notification system 100E includes an entrance intercom unit 2E. Below, differences from safety information notification system 100A will be described, and similar points will not be described repeatedly.

[0069] (Effects of Modification 7) In this modification, the functional blocks arranged in the individual household receiver 1 in the safety information notification system 100A are arranged in the front door intercom sub-unit 2E. When a person inside the building 8 wants to let others know that they are safe, they go outside the building 8 and press the safety button 3E on the front door intercom sub-unit 2E. This eliminates the need to arrange a separate individual household receiver inside the building 8, and also eliminates the need for communication processing between the individual household receiver 1 and the front door intercom sub-unit 2. This has the effect of simplifying the system configuration.

[0070] [Variation 8] (Configuration of safety information notification system 100F) The configuration of safety information notifying system 100F, which is a modification of safety information notifying system 100A, will be described with reference to Fig. 14. Fig. 14 is a block diagram showing the configuration of safety information notifying system 100F. As shown in Fig. 14, safety information notifying system 100F includes a household receiver 1F, a front door intercom unit 2, and a terminal 7. Below, differences from safety information notifying system 100A will be described, and similar points will not be described repeatedly.

[0071] The individual household receiver 1F includes a control unit 20 and an input receiving device 3F. The input receiving device 3F is capable of communicating with a terminal 7 located in the vicinity of the input receiving device 3F. The terminal 7 may be a mobile terminal used by a person who was in the building 8 at least when the earthquake early warning was received, or a wearable terminal worn by the person. The input receiving device 3F and the terminal 7 are connected by short-range wireless communication. Examples of the input receiving device 3F include, but are not limited to, a Beacon or a Bluetooth (registered trademark) transceiver. Examples of communication methods for short-range wireless communication include, but are not limited to, iBeacon (registered trademark) and Bluetooth (registered trademark). The input receiving device 3F may be located inside or outside the building 8.

[0072] The terminal 7 has an input device and an output device (not shown). Furthermore, under the control of the individual household receiver 1F, the terminal 7 displays an operation object representing a safety button on the display device. For example, when the individual household receiver 1F receives an emergency earthquake alert, it controls the terminal 7 to display the operation object. The user of the terminal 7 operates the displayed operation object using the input device. For example, if the input device and the display device are configured as an integrated touch panel, the user may operate the operation object by tapping it. When the terminal 7 receives an operation input for the operation object from the user, it transmits the input to the input receiving device 3F.

[0073] (Effect of Modification 8) In this modification, the input receiving device 3F is realized as a device that can receive input based on the operation of a person in a building 8 or the like from a terminal 7 used by the person via short-range wireless communication, instead of a physical safety button. Therefore, the same effect as in the exemplary embodiment 2 can be achieved without the person in the building 8 or the like having to move to the location of the safety button in the building 8.

[0074] [Other Modifications] In the above-described exemplary embodiment 2 and each modified example, an example has been described in which the disaster is an earthquake and an Earthquake Early Warning is received as the disaster notification. However, exemplary embodiment 2 and each modified example can also be applied to disasters other than earthquakes. In this case, exemplary embodiment 2 and each modified example can be similarly explained by replacing "earthquake" with "various disasters" and "Earthquake Early Warning" with "notifications related to various disasters."

[0075] [Software implementation example] Some or all of the functions of safety information notification systems 100, 100A, 100B, 100C, 100D, 100E, and 100F (hereinafter also referred to as "each of the above devices") may be realized by hardware such as an integrated circuit (IC chip), or by software.

[0076] In the latter case, each of the above devices is realized by, for example, a computer that executes instructions of a program, which is software that realizes each function. An example of such a computer (hereinafter referred to as computer C) is shown in Figure 15. Figure 15 is a block diagram showing the hardware configuration of computer C that functions as each of the above devices.

[0077] The computer C includes at least one processor C1 and at least one memory C2. The memory C2 stores a program P for causing the computer C to operate as each of the above-mentioned devices. In the computer C, the processor C1 reads and executes the program P from the memory C2, thereby realizing the functions of each of the above-mentioned devices.

[0078] The processor C1 may be, for example, a central processing unit (CPU), a graphic processing unit (GPU), a digital signal processor (DSP), a micro processing unit (MPU), a floating point number processing unit (FPU), a physics processing unit (PPU), a tensor processing unit (TPU), a quantum processor, a microcontroller, or a combination thereof. The memory C2 may be, for example, a flash memory, a hard disk drive (HDD), a solid state drive (SSD), or a combination thereof.

[0079] The computer C may further include a RAM (Random Access Memory) for expanding the program P during execution and for temporarily storing various data. The computer C may also include a communication interface for transmitting and receiving data to and from other devices. The computer C may also include an input / output interface for connecting input / output devices such as a keyboard, mouse, display, and printer.

[0080] Furthermore, the program P can be recorded on a non-transitory tangible recording medium M that can be read by the computer C. Such a recording medium M can be, for example, a tape, a disk, a card, a semiconductor memory, or a programmable logic circuit. The computer C can acquire the program P via such a recording medium M. The program P can also be transmitted via a transmission medium. Such a transmission medium can be, for example, a communication network or broadcast waves. The computer C can also acquire the program P via such a transmission medium.

[0081] Furthermore, the functions of each of the devices may be realized by a single processor provided in a single computer, by multiple processors provided in a single computer working in cooperation, or by multiple processors provided in each of multiple computers working in cooperation. Furthermore, the programs for causing each of the devices to realize the functions may be stored in a single memory provided in a single computer, or may be distributed and stored in multiple memories provided in a single computer, or may be distributed and stored in multiple memories provided in each of multiple computers.

[0082] [Appendix A] This disclosure includes the techniques described in the following appendices. However, the present invention is not limited to the techniques described in the following appendices, and various modifications are possible within the scope of the claims.

[0083] (Appendix A1) notification receiving means for receiving a disaster notification; an input receiving means capable of receiving an input based on an operation of a person who was in the building at the time of receiving the disaster notification via an input receiving device disposed in or near the building; and an alarm display control means for displaying an alarm on a display device arranged inside or near the building so as to be visible from outside the building, if the input is not received within a predetermined period of time after the receipt of the disaster notification. Safety information notification system.

[0084] (Appendix A2) Further, an absence information acquiring means is provided for acquiring absence information indicating that no one is present in the building, the alarm display control means, when the absence information has been acquired before the disaster notification is received, does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. Safety information notification system described in Appendix A1.

[0085] (Appendix A3) the notification receiving means is further capable of receiving an alarm unnecessary notification indicating that the alarm is unnecessary; when the alarm no-necessity notification is received after the disaster notification is received, the alarm display control means does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. Safety information notification system described in Appendix A1 or A2.

[0086] (Appendix A4) the notification receiving means is further capable of receiving a period change notification instructing a change to the length of the predetermined period; the alarm display control means, when receiving the period change notification after receiving the disaster notification, changes the length of the predetermined period based on the period change notification. A safety information notification system according to any one of Appendices A1 to A3.

[0087] (Appendix A5) The disaster notification includes disaster scale information indicating the scale of the disaster, the alarm display control means, when receiving the disaster notification including the disaster scale information, changes the length of the predetermined period based on the disaster scale information. A safety information notification system as set forth in any one of Appendices A1 to A4.

[0088] (Appendix A6) a locking device that can be controlled to one of a first state in which the door of the building can be unlocked with a first key but cannot be unlocked with a second key, and a second state in which the door can be unlocked with the second key, and the locking device that is in the first state before receiving the disaster notification is attached to the door of the building; The device further includes a lock change means for controlling the locking device to the second state when the alarm is displayed after the predetermined period has elapsed. A safety information notification system as set forth in any one of Appendices A1 to A5.

[0089] (Appendix A7) The safety information notification system according to any one of appendices A1 to A6, further comprising the input receiving device.

[0090] (Appendix A8) The safety information notification system according to any one of appendices A1 to A7, further comprising the display device.

[0091] [Appendix B] This disclosure includes the techniques described in the following appendices. However, the present invention is not limited to the techniques described in the following appendices, and various modifications are possible within the scope of the claims.

[0092] (Appendix B1) a notification receiving process in which at least one processor receives a disaster notification; an input receiving process in which the at least one processor can receive, via an input receiving device located in or near the building, an input based on an operation of a person who was in the building at least when the disaster notification was received; and an alarm display control process, performed by the at least one processor, for displaying an alarm on a display device arranged in or near the building so as to be visible from outside the building, if the input is not received within a predetermined period of time from the receipt of the disaster notification. Safety information notification method.

[0093] (Appendix B2) The at least one processor further includes an absence information acquisition process capable of acquiring absence information indicating that no one is present in the building; In the alarm display control process, when the absence information has been acquired before the disaster notification is received, the at least one processor does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. Safety information notification method described in Appendix B1.

[0094] (Appendix B3) In the notification receiving process, the at least one processor is further capable of receiving an alarm unnecessary notification indicating that the alarm is unnecessary; In the alarm display control process, when the alarm unnecessary notification is received after the disaster notification is received, the at least one processor does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. Safety information notification method described in Appendix B1 or B2.

[0095] (Appendix B4) In the notification receiving process, the at least one processor is further capable of receiving a period change notification instructing a change in the length of the predetermined period; In the alarm display control process, when the period change notification is received after the disaster notification is received, the at least one processor changes the length of the predetermined period based on the period change notification. A safety information notification method described in any one of Appendix B1 to B3.

[0096] (Appendix B5) The disaster notification includes disaster scale information indicating the scale of the disaster, In the alarm display control process, when the disaster notification including the disaster scale information is received, the at least one processor changes the length of the predetermined period based on the disaster scale information. A safety information notification method described in any one of Appendix B1 to B4.

[0097] (Appendix B6) a locking device that can be controlled to one of a first state in which the door of the building can be unlocked with a first key but cannot be unlocked with a second key, and a second state in which the door can be unlocked with the second key, and the locking device that is in the first state before receiving the disaster notification is attached to the door of the building; and a lock change process for controlling the locking device to the second state when the at least one processor displays the alarm after the predetermined period of time has elapsed. A safety information notification method described in any one of Appendices B1 to B5.

[0098] [Appendix C] This disclosure includes the techniques described in the following appendices. However, the present invention is not limited to the techniques described in the following appendices, and various modifications are possible within the scope of the claims.

[0099] (Appendix C1) A program that causes at least one processor to function as a safety information notification system, the at least one processor: notification receiving means for receiving a disaster notification; an input receiving means capable of receiving an input based on an operation of a person who was in the building at the time of receiving the disaster notification via an input receiving device disposed in or near the building; an alarm display control means for displaying an alarm on a display device arranged in or near the building so as to be visible from outside the building when the input is not received within a predetermined period of time after receiving the disaster notification; A safety information notification program that functions as a

[0100] (Appendix C2) The at least one processor further functions as absence information acquisition means capable of acquiring absence information indicating that no one is present in the building; the alarm display control means, when the absence information has been acquired before the disaster notification is received, does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. Safety information notification program described in Appendix C1.

[0101] (Appendix C3) the notification receiving means is further capable of receiving an alarm unnecessary notification indicating that the alarm is unnecessary; when the alarm no-necessity notification is received after the disaster notification is received, the alarm display control means does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. A safety information notification program described in Appendix C1 or C2.

[0102] (Appendix C4) the notification receiving means is further capable of receiving a period change notification instructing a change to the length of the predetermined period; the alarm display control means, when receiving the period change notification after receiving the disaster notification, changes the length of the predetermined period based on the period change notification. A safety information notification program as set forth in any one of Appendices C1 to C3.

[0103] (Appendix C5) The disaster notification includes disaster scale information indicating the scale of the disaster, the alarm display control means, when receiving the disaster notification including the disaster scale information, changes the length of the predetermined period based on the disaster scale information. A safety information notification program as set forth in any one of Appendices C1 to C4.

[0104] (Appendix C6) a locking device that can be controlled to one of a first state in which the door of the building can be unlocked with a first key but cannot be unlocked with a second key, and a second state in which the door can be unlocked with the second key, and the locking device that is in the first state before receiving the disaster notification is attached to the door of the building; and causing the at least one processor to further function as a lock change unit that controls the locking device to the second state when the alarm is displayed after the predetermined period of time has elapsed. A safety information notification program as set forth in any one of Appendices C1 to C5.

[0105] [Appendix D] This disclosure includes the techniques described in the following appendices. However, the present invention is not limited to the techniques described in the following appendices, and various modifications are possible within the scope of the claims.

[0106] (Appendix D1) at least one processor, a notification receiving process for receiving a disaster notification; an input receiving process capable of receiving an input based on an operation of a person who was in the building at least when the disaster notification was received, via an input receiving device disposed in or near the building; and executing an alarm display control process for displaying an alarm on a display device arranged in or near the building so as to be visible from outside the building, if the input is not received within a predetermined period of time after the receipt of the disaster notification. Safety information notification system.

[0107] (Appendix D2) The at least one processor further performs an absence information acquisition process capable of acquiring absence information indicating that no one is present in the building; In the alarm display control process, when the absence information has been acquired before the disaster notification is received, the at least one processor does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. The safety information notification system described in Appendix D1.

[0108] (Appendix D3) In the notification receiving process, the at least one processor is further capable of receiving an alarm unnecessary notification indicating that the alarm is unnecessary; In the alarm display control process, when the alarm unnecessary notification is received after the disaster notification is received, the at least one processor does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. A safety information notification system as described in Appendix D1 or D2.

[0109] (Appendix D4) In the notification receiving process, the at least one processor is further capable of receiving a period change notification instructing a change in the length of the predetermined period; In the alarm display control process, when the period change notification is received after the disaster notification is received, the at least one processor changes the length of the predetermined period based on the period change notification. A safety information notification system according to any one of appendices D1 to D3.

[0110] (Appendix D5) The disaster notification includes disaster scale information indicating the scale of the disaster, In the alarm display control process, when the disaster notification including the disaster scale information is received, the at least one processor changes the length of the predetermined period based on the disaster scale information. A safety information notification system according to any one of appendices D1 to D4.

[0111] (Appendix D6) a locking device that can be controlled to one of a first state in which the door of the building can be unlocked with a first key but cannot be unlocked with a second key, and a second state in which the door can be unlocked with the second key, and the locking device that is in the first state before receiving the disaster notification is attached to the door of the building; When the at least one processor displays the alarm after the predetermined period of time has elapsed, the at least one processor further executes a lock change process for controlling the lock device to the second state. A safety information notification system according to any one of appendices D1 to D5.

[0112] (Appendix D7) The safety information notification system according to any one of appendices D1 to D6, further comprising the input receiving device.

[0113] (Appendix D8) The safety information notification system according to any one of appendices D1 to D7, further comprising the display device.

[0114] [Appendix E] This disclosure includes the techniques described in the following appendices. However, the present invention is not limited to the techniques described in the following appendices, and various modifications are possible within the scope of the claims.

[0115] (Appendix E1) A program that causes at least one processor to function as a safety information notification system, the at least one processor comprising: a notification receiving process for receiving a disaster notification; an input receiving process capable of receiving an input based on an operation of a person who was in the building at least when the disaster notification was received, via an input receiving device disposed in or near the building; an alarm display control process for displaying an alarm on a display device arranged in or near the building so as to be visible from outside the building when the input is not received within a predetermined period of time since the receipt of the disaster notification; A non-transitory recording medium on which a safety information notification program is recorded. [Explanation of symbols]

[0116] 1. Individual receiver 2 Entrance intercom 3 Safety Button 4 Display device 8 Building 11 Notification Receiving Unit 12 Input receiver 21 Alarm display control section 100 Safety Information Notification System

Claims

1. notification receiving means for receiving a disaster notification; an input receiving means capable of receiving an input based on an operation of a person who was in the building at the time of receiving the disaster notification via an input receiving device disposed in or near the building; and an alarm display control means for displaying an alarm on a display device arranged inside or near the building so as to be visible from outside the building, if the input is not received within a predetermined period of time after the receipt of the disaster notification. Safety information notification system.

2. Further, an absence information acquiring means is provided for acquiring absence information indicating that no one is present in the building, the alarm display control means, when the absence information has been acquired before the disaster notification is received, does not display the alarm on the display device even if the input is not received until the predetermined period has elapsed since the disaster notification was received. The safety information notification system according to claim 1.

3. the notification receiving means is further capable of receiving an alarm unnecessary notification indicating that the alarm is unnecessary; 3. The safety information notification system according to claim 1, wherein the alarm display control means, when the alarm no-necessity notification is received after the disaster notification is received, does not display the alarm on the display device even if the input is not received within the predetermined period from the receipt of the disaster notification.

4. the notification receiving means is further capable of receiving a period change notification instructing a change to the length of the predetermined period; the alarm display control means, when receiving the period change notification after receiving the disaster notification, changes the length of the predetermined period based on the period change notification. The safety information notification system according to claim 1 or 2.

5. The disaster notification includes disaster scale information indicating the scale of the disaster, the alarm display control means, when receiving the disaster notification including the disaster scale information, changes the length of the predetermined period based on the disaster scale information. The safety information notification system according to claim 1 or 2.

6. a locking device that can be controlled to one of a first state in which the door can be unlocked with a first key but cannot be unlocked with a second key, and a second state in which the door can be unlocked with the second key, and the locking device that is in the first state before receiving the disaster notification is attached to the door of the building; The device further includes a lock change means for controlling the locking device to the second state when the alarm is displayed after the predetermined period of time has elapsed. The safety information notification system according to claim 1 or 2.

7. The safety information notification system according to claim 1 or 2, further comprising the input receiving device.

8. The safety information notification system according to claim 1 or 2, further comprising the display device.

9. a notification receiving process in which at least one processor receives a disaster notification; an input receiving process in which the at least one processor can receive, via an input receiving device located in or near the building, an input based on an operation of a person who was in the building at least when the disaster notification was received; and an alarm display control process, performed by the at least one processor, for displaying an alarm on a display device arranged in or near the building so as to be visible from outside the building, if the input is not received within a predetermined period of time after the receipt of the disaster notification. Safety information notification method.

10. A program that causes at least one processor to function as a safety information notification system, the at least one processor comprising: notification receiving means for receiving a disaster notification; an input receiving means capable of receiving an input based on an operation of a person who was in the building at the time of receiving the disaster notification via an input receiving device disposed in or near the building; an alarm display control means for displaying an alarm on a display device arranged in or near the building so as to be visible from outside the building when the input is not received within a predetermined period of time after receiving the disaster notification; A safety information notification program that functions as a

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