Notification system and method for controlling notification system

Abstract

To perform more appropriate detection processing in a vehicle.SOLUTION: A notification system is a notification system that detects a person inside a vehicle and notifies the person, which comprises: an opening / closing detection unit that detects an opening / closing state of a door provided in the vehicle; a confirmation button disposed at a position away from a driver seat of the vehicle; a person detecting unit that detects a person present inside the vehicle; a notification unit that notifies an outside of the vehicle of an abnormality; and a control unit that starts detection processing of a person present inside the vehicle by the person detecting unit when a first predetermined condition is established after the opening / closing detection unit detects a closure of the door, and a second predetermined condition is established after the confirmation button is pressed, and that does not execute the detection processing by the person detecting unit when the opening / closing detection unit detects an open state of the door, and that causes the notification unit to send a notification to the outside of the vehicle when a person is detected inside the vehicle during the execution of the detection processing.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This specification discloses a notification system and a method for controlling the notification system.

Background Art

[0002] Conventionally, as a notification system, an information processing device associated with a vehicle estimates that a person or an article has been left behind in a rear seat of the vehicle based on whether a rear door has been opened or closed during a predetermined period before the vehicle starts running and whether the rear door has been opened or closed during a predetermined period after the vehicle has finished running, executes sensing on the rear seat based on the result of the estimation, and notifies the user based on the result of the sensing (see, for example, Patent Document 1). This system is said to be able to accurately determine the presence of a person or an object left in the vehicle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, although the notification system described in Patent Document 1 is said to be able to accurately determine a person or an object left in the vehicle, it is still not sufficient, and further improvement has been demanded.

[0005] In view of such problems, the present disclosure is made, and a main object thereof is to provide a notification system capable of performing more appropriate detection processing in a vehicle.

Means for Solving the Problems

[0006] The present disclosure has adopted the following means to achieve the above main object.

[0007] The notification system of the present disclosure is a notification system that detects and notifies a person inside a vehicle, an opening / closing detection unit that detects the opening / closing state of a door provided in the vehicle, a confirmation button disposed at a position away from the driver's seat of the vehicle, a person detection unit that detects a person existing inside the vehicle, a notification unit that notifies an abnormality to the outside of the vehicle, a control unit that starts the detection process of a person existing inside the vehicle by the person detection unit after detecting the closing of the door by the opening / closing detection unit and after the establishment of a predetermined first condition and the pressing of the confirmation button and the establishment of a predetermined second condition, and does not execute the detection process by the person detection unit when the open state of the door is detected by the opening / closing detection unit, and when a person is detected inside the vehicle during the execution of the detection process, causes the notification unit to notify the outside of the vehicle, and includes the above.

[0008] In this notification system, since the detection process is started after the closing of the door and the pressing of the confirmation button, the detection process can be executed more appropriately. Also, in this notification system, when a person is detected inside the vehicle, the outside of the vehicle is notified, so that it is possible to prevent a person from being left behind inside the vehicle. Further, in this notification system, since the detection process is not executed after the door is opened, false detection during work inside the vehicle can be further suppressed. Therefore, in this notification system, a more appropriate detection process can be executed.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiment for Carrying Out the Invention

[0010] This embodiment will be described below with reference to the drawings. FIG. 1 is a schematic explanatory drawing showing an example of a vehicle 10 and an example of a notification system 20 which are examples of the present disclosure. FIG. 2 is a block diagram showing an example of the configuration of the notification system 20.

[0011] The vehicle 10 is a traveling body in which the notification system 20 is disposed, and may be, for example, a vehicle for picking up and dropping off a plurality of users. The vehicle 10 may be, for example, a one-box car having two or more rows of seats and allowing seven or more passengers to board, or a small bus, a medium bus, a large bus, etc. that allows nine or more, or eleven or more passengers to board. As shown in FIGS. 1 and 2, this vehicle 10 includes a driver's seat 11, an entrance / exit door 12, a rear part 13 of the vehicle, seats 14, a constant power source 15, an IG power source 16, and a notification system 20. The driver's seat 11 is a seat on which the driver of the vehicle 10 sits. The driver drives the vehicle 10 from the driver's seat 11. The entrance / exit door 12 is a door through which users who move by the vehicle 10, such as infants, get on and off. The rear part 13 of the vehicle refers to the rearmost area inside the vehicle away from the driver's seat 11. The seats 14 are for users to sit on, and may be, for example, three or more rows. In this vehicle 10, an example is shown in FIG. 1 where there are four rows of two-person seats 14 behind the driver's seat 11 and two rows of seats 14 on the rear side of the entrance / exit door 12. The constant power source 15 is a battery for vehicle equipment that can be used at all times and maintains the operation of the notification system 20. The IG power source 16 is a power source for vehicle equipment that becomes available when the ignition of the vehicle 10 is turned on at the driver's seat 11.

[0012] The notification system 20 is a system that detects a person inside the vehicle and notifies the outside of the vehicle. This notification system 20 is, for example, a system that prevents a person such as an infant from being left behind inside the vehicle. The notification system 20 includes, for example, a control device 21, an opening / closing detection unit 30, a person detection unit 31, a confirmation button 32, a notification button 33, a notification unit 34, and an indicator 35. The control device 21 is configured as a microprocessor centered on a control unit 22 such as a CPU, and controls the entire notification system 20. The control device 21 includes a storage unit 23 and exchanges information with each unit. The storage unit 23 is, for example, a large-capacity storage medium such as a flash memory. A control program is stored in the storage unit 23, and various types of information related to the vehicle 10 are stored. The control device 21 is electrically connected to a constant power supply 15 and an IG power supply 16 at all times. The control device 21 operates by being supplied with power from the constant power supply 15 and the IG power supply 16. The control unit 22 executes a person detection process inside the vehicle when the boarding and alighting door 12 is closed, and executes a notification process to the outside of the vehicle when a person is detected inside the vehicle during the execution of the detection process. This control device 21 has a timekeeping function for measuring the elapsed time.

[0013] The opening / closing detection unit 30 is a sensor that detects the opening / closing state of the boarding and alighting door 12, which is a door provided in the vehicle 10. The opening / closing detection unit 30 may be a contact-type sensor or a non-contact-type sensor. The opening / closing detection unit 30 may be configured such that, for example, the main body is disposed on the vehicle 10 side, the detection member is disposed on the boarding and alighting door 12 side, and the closing of the boarding and alighting door 12 is detected when the detection member is present in the vicinity of the main body by the main body. Note that the opening / closing detection unit 30 may be disposed on a door other than the boarding and alighting door 12, for example, the driver's door, the front passenger's door, or the hatchback door at the rear of the vehicle 13.

[0014] The human detection unit 31 is a sensor that detects a person present inside the vehicle 10. The human detection unit 31 may be, for example, a non-contact type sensor. The human detection unit 31 may be, for example, one that transmits radio waves such as radar and receives the reflected waves to detect surrounding objects, or one that captures a video with a camera that captures a video and detects surrounding objects from the image analysis of the captured image. In the notification system 20, one or more human detection units 31 are arranged inside the vehicle 10 according to the vehicle type and the like, and a human detection process is executed. In the vehicle 10, assume that a human detection unit 31 is provided for each of the two rows of seats 14.

[0015] The confirmation button 32 is a button that is arranged at a position away from the driver's seat of the vehicle 10 and is pressed when the driver or an assistant confirms that there is no person inside the vehicle. This confirmation button 32 is arranged at the rear part 13 of the vehicle, which is the rearmost part inside the vehicle, in order to prevent leaving a person inside the vehicle unattended.

[0016] The notification button 33 is a button that is pressed when notifying that there is a person left inside the vehicle to the outside of the vehicle. This notification button 33 may be arranged, for example, near the entry / exit door 12 inside the vehicle. This notification button 33 has its arrangement position, purpose, etc. explained in advance from the administrator side of the notification system 20 to the user.

[0017] The notification unit 34 is a device that notifies an abnormality to the outside of the vehicle 10 and may include, for example, a speaker. This notification unit 34 is configured to be able to output one or more pre-set sounds such as a siren or a warning sound. When the notification unit 34 receives a signal from the control device 21, it outputs a sound corresponding to that signal.

[0018] Indicator 35 is a device that displays the status of the notification system 20. For example, when it is confirmed that each unit is operating normally, a blue lamp lights up, and when there is a problem in any of the units, a red lamp lights up. When the driver checks this indicator 35, the driver can determine whether the notification system 20 is operating normally or not.

[0019] Next, the detection process of the notification system 20 configured in this way will be described. FIG. 3 is a flowchart showing an example of a detection process execution routine executed by the control unit 22 of the control device 21. This routine is stored in the storage unit 23 and is executed after the power is turned off after the ignition of the vehicle 10 is turned off. When this routine is started, the control unit 22 of the control device 21 first determines based on whether a signal from the confirmation button 32 is acquired to check whether the confirmation button 32 is pressed (S100). The confirmation button 32 is pressed after all users have gotten out of the vehicle 10 and the driver has confirmed whether there are any users remaining in the seat 14. When the confirmation button 32 is not pressed, the control unit 22 determines whether a predetermined notification time has elapsed after the vehicle 10 is turned off (S110). The predetermined notification time can be a grace period until the confirmation button 32 is pressed after the vehicle 10 is turned off. The notification time can be set to, for example, 5 minutes, 10 minutes, 15 minutes, etc. This notification time may be a fixed value, may be selectable by the user, or may be freely set. Also, the control unit 22 shall grasp the passage of time by means of the timing function provided in the control device 21. FIG. 4 is an explanatory diagram of the time when the user gets out of the vehicle 10. The user gets out of the vehicle through the opened boarding and alighting door 12, and the driver moves to the rear part 13 of the vehicle while checking the seat 14, and presses the confirmation button 32 after the check. When the predetermined notification time has not elapsed since the power of the vehicle 10 was turned off, the control unit 22 executes the process of S100. On the other hand, when the predetermined notification time has elapsed since the power of the vehicle 10 was turned off, the control unit 22 executes the notification process to the outside of the vehicle by the notification unit 34 on the assumption that the driver has forgotten to press the confirmation button 32 (S220). The notification process may be, for example, to emit a warning sound from the notification unit 34, or to output a warning message from the notification unit 34 by voice. People outside the vehicle receive this notification process, check inside the vehicle, etc., and further press the confirmation button 32.

[0020] On the other hand, when the confirmation button is pressed in S100, the control unit 22 determines whether or not a predetermined detection completion time has elapsed since the vehicle 10 was powered off (S120). The predetermined detection completion time can be set to a time with sufficient margin to detect whether a person has been left inside the vehicle 10. For example, it can be set to 1 hour, 2 hours, 4 hours, etc. When the predetermined detection completion time has not elapsed, the control unit 22 determines whether or not the door of the vehicle 10 is in an open state based on the signal from the opening / closing detection unit 30 (S130). The doors of the vehicle 10 include at least the entry / exit door 12, and may also include the driver's door, the passenger's door, the hatchback door, etc. When there are multiple doors, the control unit 22 determines whether or not any one of the doors is open. When the door of the vehicle 10 is not in an open state, that is, when all the doors are in a closed state, the control unit 22 determines whether or not a predetermined first time has elapsed since the doors were closed as the determination of the establishment of the first condition (S140). The first time may be set as a grace period until the execution of the detection process, such as when the vehicle 10 is operated again. For example, it can be set to 1 minute, 3 minutes, 5 minutes, etc. When a predetermined first time has elapsed since the doors were closed in S140, the control unit 22 determines whether or not a predetermined second time has elapsed since the confirmation button 32 was pressed as the determination of the establishment of the second condition (S150). The second time may be set as a grace period required for the driver or operator to evacuate from the vehicle 10. For example, it can be set to 1 minute, 3 minutes, 5 minutes, etc. Note that the first condition and the second condition may be the same or different. When the predetermined second time has not elapsed since the confirmation button 32 was pressed in S150, or when the door of the vehicle 10 is open in S130, or when the predetermined first time has not elapsed since the doors were closed in S140, the control unit 22 executes the processes after S120.

[0021] On the other hand, when a predetermined second time has elapsed since the confirmation button 32 was pressed at S150, that is, when the first condition and the second condition are satisfied, the control unit 22 executes a detection process for detecting a person inside the vehicle (S160). In the execution of the detection process, for example, the control unit 22 turns on the power of the person detection unit 31 and acquires a signal output from the person detection unit 31. Here, when neither the first condition nor the second condition is satisfied, the control unit 22 does not execute the detection process by the person detection unit 31 on the assumption that it is within the grace period. Next, the control unit 22 determines whether a person has been detected inside the vehicle based on the detection result of the person detection unit 31 (S170). The control unit 22 also executes the detection process by the person detection unit 31 even after the confirmation button 32 has been pressed. This is to supplement the case where the act of pressing the confirmation button 32 by the driver or the like becomes a mere formality and the confirmation of the person left inside the vehicle becomes insufficient. The notification system 20 more surely prevents the occurrence of a person left inside the vehicle by using the confirmation of the pressing of the confirmation button 32 and the detection process of the person detection unit 31 in combination. When a person is detected inside the vehicle at S170, the control unit 22 executes a notification process to the outside of the vehicle by the notification unit 34 at S220 on the assumption that there is a person left inside the vehicle. The notification process may be, for example, to emit a warning sound from the notification unit 34 or to output a warning message from the notification unit 34 by voice. A person outside the vehicle receives this notification process and checks inside the vehicle and the like.

[0022] Here, when the door of the vehicle 10 is open at S130, or when a predetermined first hour has not elapsed since the door was closed at S140, or when a predetermined second hour has not elapsed since the confirmation button 32 was pressed at S150, the control unit 22 does not execute the detection process inside the vehicle. At this time, the control unit 22 may execute, for example, an off process of turning off the power of the human detection unit 31, or may execute a non-adoption process of not adopting the detection result based on the output signal from the human detection unit 31. When the door of the vehicle 10 is opened or in an open state, there is a possibility that the driver or operator is performing some work, such as retrieving forgotten items or cleaning the interior of the vehicle. Therefore, when the door of the vehicle 10 is open, from the viewpoint of preventing false detection, the control unit 22 does not execute the detection process. Also, when the first hour has not elapsed and the second hour has not elapsed, since it is within the grace period for the driver or operator to evacuate, the detection process inside the vehicle is not executed. Note that when the door of the vehicle 10 is opened at S130 during the measurement of the first hour, the control unit 22 resets the current measurement of the first hour.

[0023] On the other hand, at S170, when no person is detected in the vehicle during the execution of the detection process, the control unit 22 determines whether the notification button 33 has been pressed based on the signal from the notification button 33 (S180). The notification button 33 is a button pressed by a user left behind in the vehicle. When the notification button 33 is pressed, the control unit 22 executes the notification process to the outside of the vehicle by the notification unit 34 at S220, assuming that there is a person left behind in the vehicle. The notification process may be, for example, sounding a warning sound from the notification unit 34 or outputting a warning message from the notification unit 34 as voice. A person outside the vehicle receives this notification process and checks inside the vehicle. Note that the notification process at S220 may be the same as any one or more of the notification process for forgetting to press the confirmation button 32, the notification process by the detection process of the person detection unit 31, and the notification process by pressing the notification button 33, or any one or more of them may be different. For example, if the warning sounds of the three notification processes are all different, a person outside the vehicle can grasp the current state according to the mode of the warning sound. Also, here, the control unit 22 determines the pressing of the notification button 33 only during the execution of the detection process. That is, the control unit 22 executes the notification process based on the notification button 33 only during the execution of the detection process, but is not particularly limited thereto, and when the notification button 33 is pressed, the control unit 22 may execute the notification process.

[0024] When executing the notification process at S220, the control unit 22 determines whether the notification process has been canceled based on whether a cancellation input to the control device 21 has been received (S230). The control unit 22 may execute this determination based on the operation of a cancellation button (not shown). When the notification process has not been canceled at S230, the control unit 22 continues the notification process at S220. On the other hand, after the notification process has been canceled at S230, the control unit 22 executes the processes after S100.

[0025] On the other hand, when the notification button 33 is not pressed at S180, the control unit 22 determines whether the door of the vehicle 10 is in an open state based on the signal from the opening / closing detection unit 30 in the same manner as at S130 (S190). When the door of the vehicle 10 is open at S190, the control unit 22 ends the detection process (S200) and executes the processes after S120. That is, the control unit 22 determines again whether the first condition and the second condition are satisfied, and when the conditions are satisfied, it executes the detection process for the person inside the vehicle. On the other hand, when the door of the vehicle 10 is not in an open state at S190, it is determined whether a predetermined detection completion time has elapsed since the power-off of the vehicle 10 in the same manner as at S120 (S210). When the predetermined detection completion time has not elapsed, the control unit 22 repeatedly executes the processes after S160. That is, the control unit 22 continues the detection process by the person detection unit 31. On the other hand, when the predetermined detection completion time has elapsed since the power-off of the vehicle 10 at S210, the control unit 22 ends the execution of this detection process assuming that there is no person left in the vehicle 10 (S240), turns off the power of the notification system 20, and ends this routine.

[0026] Here, the correspondence between the components of this embodiment and the components of the present disclosure will be clarified. The notification system 20 of this embodiment corresponds to an example of the notification system of the present disclosure, the opening / closing detection unit 30 corresponds to an example of the opening / closing detection unit, the person detection unit 31 corresponds to an example of the person detection unit, the confirmation button 32 corresponds to an example of the confirmation button, the notification button 33 corresponds to an example of the notification button, the notification unit 34 corresponds to an example of the notification member, and the control unit 22 corresponds to an example of the control unit. In this embodiment, by explaining the operation of the notification system 20, an example of the control method of the notification system 20 of the present disclosure is also clarified.

[0027] The notification system 20 of the present embodiment described above detects and notifies a person inside the vehicle 10, and includes an opening / closing detection unit 30 that detects the opening / closing state of a door provided in the vehicle 10, a confirmation button 32 disposed at a position away from the driver's seat 11 of the vehicle 10, a person detection unit 31 that detects a person existing inside the vehicle 10, a notification unit 34 that notifies an abnormality to the outside of the vehicle 10, and a control unit 22 that starts the detection process of a person existing inside the vehicle by the person detection unit 31 when a predetermined first condition is satisfied after detecting the closing of the door by the opening / closing detection unit 30 and a predetermined second condition is satisfied after pressing the confirmation button 32. When the opening state of the door is detected by the opening / closing detection unit 30, the detection process by the person detection unit 31 is not executed. When a person is detected inside the vehicle during the execution of the detection process, the control unit 22 causes the notification unit 34 to notify the outside of the vehicle. In this notification system 20, since the detection process is started after the door is closed and the confirmation button 32 is pressed, the detection process can be executed more appropriately. Further, in this notification system 20, when a person is detected inside the vehicle, the outside of the vehicle is notified, so that it is possible to prevent a person from being left behind in the vehicle. Further, in this notification system 20, since the detection process is not executed after the door is opened, false detection during work inside the vehicle can be further suppressed. Therefore, in this notification system, a more appropriate detection process can be executed.

[0028] In addition, since the control unit 22 executes the detection process even after the confirmation button 32 is pressed, by performing double confirmation and detection against the possibility of a person being left behind in the vehicle, a more appropriate detection process can be executed. Further, in the notification system 20, the predetermined first condition includes the elapse of a predetermined time, and the predetermined second condition includes the elapse of a predetermined time. In this notification system 20, in order to provide a delay time until the execution of the detection process, by suppressing false detection more when performing short-time work inside the vehicle, a more appropriate detection process can be executed. Furthermore, when the control unit 22 does not execute the detection process in the open state of the door, it performs an off process of turning off the person detection unit 31 and a non-adoption process of not adopting the detection result of the person detection unit 31. In this notification system 20, the off process can more surely realize the non-execution of the detection process. Also, in this notification system 20, by the non-adoption process, even while the person detection unit 31 is operating, the non-execution of the detection process can be realized. Also, in this notification system 20, by executing the off process and the non-adoption process doubly, the non-execution of the detection process can be realized more surely. And, the notification system 20 includes a notification button 33 disposed near the door inside the vehicle, and when the notification button 33 is pressed, the control unit 22 causes the notification unit 34 to notify the outside of the vehicle. In this notification system 20, the notification button 33 can notify the outside that there is a person inside the vehicle. And also, the vehicle 10 is a bus, the door is the boarding and alighting door 12 for bus users, and the confirmation button 32 is disposed at the rearmost part 13 inside the vehicle. In this notification system 20, it is possible to prevent a person from being left behind inside the bus during pick-up and drop-off.

[0029] Note that the notification system 20 of the present disclosure is not limited to the above-described embodiments at all, and it goes without saying that it can be implemented in various modes as long as it belongs to the technical scope of the present disclosure.

[0030] For example, in the above-described embodiment, the first condition when the door is closed includes the elapse of a predetermined time, but it may include other conditions. Also, in the above-described embodiment, the second condition when the confirmation button 32 is pressed includes the elapse of a predetermined time, but it may include other conditions.

[0031] In the above-described embodiment, when the door is open, an off process for turning off the power of the person detection unit 31 and a non-adoption process for not adopting the detection result of the person detection unit 31 are performed. However, if the detection process is not executed, it is not particularly limited to this, and it is not particularly limited to this. Either one may be performed, or the off process and the non-adoption process may be omitted. Even in this notification system 20, more appropriate detection processing can be executed.

[0032] In the above-described embodiment, the notification system 20 is provided with a notification button 33. However, it is not particularly limited to this, and the notification button 33 may be omitted. Even in this notification system 20, more appropriate detection processing can be executed.

[0033] In the above-described embodiment, the present disclosure has been described as the notification system 20. However, it is not particularly limited to this, and it may be a control method or a program of the notification system 20.

[0034] The present disclosure may be configured as follows. For example, the control method of the notification system of the present disclosure is an opening / closing detection unit that detects the opening / closing state of a door provided in a vehicle, a confirmation button disposed at a position away from the driver's seat of the vehicle, a person detection unit that detects a person present inside the vehicle, and a notification unit that notifies an abnormality to the outside of the vehicle, and is a control method of a notification system that detects and notifies a person inside the vehicle, After detecting the closing of the door by the opening / closing detection unit, when a predetermined first condition is satisfied and after the confirmation button is pressed and a predetermined second condition is satisfied, the person detection process for detecting a person existing inside the vehicle by the person detection unit is started. When the opening state of the door is detected by the opening / closing detection unit, the detection process by the person detection unit is not executed. When a person is detected inside the vehicle during the execution of the detection process, the notification unit is caused to notify the outside of the vehicle. It includes.

[0035] In this control method of the notification system, similar to the above-described notification system, it is possible to prevent a person from being left behind in the vehicle, and it is also possible to further suppress false detection when working inside the vehicle. Therefore, a more appropriate detection process can be executed. In this control method, various aspects of the above-described notification system 20 may be adopted, or various steps of the above-described notification system 20 may be executed.

[0036] In this specification, the technical idea of changing "the notification system according to claim 1 or 2" to "the notification system according to any one of claims 1 to 3" in claim 4 at the time of initial application, the technical idea of changing "the notification system according to claim 1 or 2" to "the notification system according to any one of claims 1 to 4" in claim 5 at the time of initial application, and the technical idea of changing "the notification system according to claim 1 or 2" to "the notification system according to any one of claims 1 to 5" in claim 6 at the time of initial application are also disclosed.

Industrial Applicability

[0037] The present disclosure is applicable to the technical field of preventing a user from being left behind inside a vehicle.

Explanation of Reference Numerals

[0038] 10 Vehicle, 11 Driver's seat, 12 Entrance / exit door, 13 Rear part of the vehicle, 14 Seat, 15 Constant power supply, 16 Ignition power supply, 20 Notification system, 21 Control device, 22 Control unit, 23 Memory unit, 30 Opening / closing detection unit, 31 Person detection unit, 32 Confirmation button, 33 Notification button, 34 Notification unit, 35 Indicator.

Claims

1. An alarm system for detecting and alarming a person inside a vehicle, comprising: an opening / closing detection unit that detects the open / closed state of a door provided in the vehicle; a confirmation button disposed at a position away from the driver's seat of the vehicle; a person detection unit that detects a person existing inside the vehicle; an alarm unit that alarms an abnormality to the outside of the vehicle; a control unit that starts the detection process of a person existing inside the vehicle by the person detection unit after detecting the closing of the door by the opening / closing detection unit and satisfying a predetermined first condition, and after pressing the confirmation button and satisfying a predetermined second condition, and does not execute the detection process by the person detection unit when the open state of the door is detected by the opening / closing detection unit, and when a person is detected inside the vehicle during the execution of the detection process, causes the alarm unit to alarm to the outside of the vehicle; An alarm system comprising the above.

2. The alarm system according to claim 1, wherein the control unit executes the detection process even after the confirmation button is pressed.

3. The predetermined first condition includes the elapse of a predetermined time, The alarm system according to claim 1 or 2, wherein the predetermined second condition includes the elapse of a predetermined time.

4. The alarm system according to claim 1 or 2, wherein when the control unit does not execute the detection process in the open state of the door, the control unit performs an off process of turning off the person detection unit and / or a non-adoption process of not adopting the detection result of the person detection unit.

5. The alarm system according to claim 1 or 2, further comprising: an alarm button disposed near the door inside the vehicle, wherein when the alarm button is pressed, the control unit causes the alarm unit to alarm to the outside of the vehicle.

6. The vehicle is a bus, the door is a boarding / alighting door for bus passengers, The alarm system according to claim 1 or 2, wherein the confirmation button is disposed at the rearmost part inside the vehicle.

7. A control method for an alarm system for detecting and alarming a person inside a vehicle, the alarm system comprising an opening / closing detection unit that detects the open / closed state of a door provided in the vehicle, a confirmation button disposed at a position away from the driver's seat of the vehicle, a person detection unit that detects a person existing inside the vehicle, and an alarm unit that alarms an abnormality to the outside of the vehicle, the method comprising: After detecting the closing of the door by the opening / closing detection unit, when a predetermined first condition is satisfied and after the confirmation button is pressed and a predetermined second condition is satisfied, start the detection process of the person present inside the vehicle by the person detection unit. When the opening state of the door is detected by the opening / closing detection unit, do not execute the detection process by the person detection unit. When a person is detected inside the vehicle during the execution of the detection process, cause the notification unit to notify the outside of the vehicle. A control method for a notification system including the above.

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