JP2016177449A - Fall detection terminal and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fall detection terminal capable of determining a fall abnormality in consideration of a possibility of an incorrect cancellation operation.SOLUTION: A fall detection terminal 1 comprises: an acceleration sensor 2 that detects the movement of a user to output acceleration data indicating the movement of the user; a fall determination part 16 that determines whether a fall abnormality caused by a fall of the user on the basis of the acceleration data has occurred or not; a vibration part 7 that informs the user of the occurrence of the fall abnormality; an operation display part 6 on which the user inputs a cancellation operation corresponding to the fall abnormality; and a cancellation invalidation part 17 that makes the cancellation operation invalid, if the cancellation operation is input after the occurrence of the fall abnormality and a body movement of a predetermined reference or more is not detected after the input of the cancellation operation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fall detection terminal having a function of detecting a fall of a user (carrier).

  2. Description of the Related Art Conventionally, a device that reports the occurrence of an emergency abnormality when a user consciously operates a button has been used. There is also known an apparatus that detects a fall by detecting fall of a person's body movement (motion) and reports the occurrence of a fall abnormality (see, for example, Patent Document 1). In the conventional apparatus, even when it is automatically determined as an emergency abnormality or a fall abnormality, the user's manual canceling operation within a certain time thereafter cancels the abnormality report.

JP 2002-360522 A

  However, even if the user actually falls and is in an emergency situation (a situation that requires reporting), a user who is conscious of mistakenly cancels the operation or tries to perform an emergency operation. There is a possibility of canceling. However, in the conventional apparatus, the possibility of an erroneous cancel operation has not been considered.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a fall detection terminal capable of performing a fall abnormality determination in consideration of the possibility of an erroneous cancel operation.

  The fall detection terminal of the present invention is a fall detection terminal that is carried by a user and detects the fall of the user, a motion sensor that detects the movement of the fall detection terminal and outputs motion data, and the motion data Based on a fall determination means for determining whether or not a fall abnormality due to the user's fall has occurred, a notification means for notifying the user of the occurrence of the fall abnormality, and the user canceling the fall abnormality Cancel operation means for inputting an operation, and when the cancel operation is input after the occurrence of the overturn abnormality, and when a body movement exceeding a predetermined reference is not detected after the cancel operation is input Cancel invalidation means for invalidating the cancel operation.

  With this configuration, motion data indicating the user's motion is acquired by the motion sensor, and the user's fall abnormality is determined from the motion data. When a fall abnormality occurs, the user can perform a cancel operation for the fall abnormality. However, even if a cancel operation is input after the occurrence of a fall abnormality, the cancel operation is invalidated if no body movement exceeding a predetermined reference is detected after the cancel operation is input. Accordingly, when a cancel operation is erroneously performed despite an emergency due to a fall, the cancel operation (incorrect cancel operation) can be automatically invalidated. That is, it is possible to appropriately determine the fall abnormality in consideration of the possibility of an erroneous cancel operation.

  Further, in the fall detection terminal of the present invention, the cancel invalid means is a case where the cancel operation is input within a notification delay time after the occurrence of the fall abnormality, and the state confirmation after the cancel operation is input When the body movement exceeding the predetermined reference is not detected within the time, the input canceling operation may be invalidated.

  With this configuration, even when a cancel operation is input within a predetermined time (report delay time) after the occurrence of a fall abnormality, a predetermined reference value or more is exceeded within a predetermined time (state confirmation time) after the cancel operation is input. If no body movement is detected, the cancel operation is automatically invalidated. Thereby, an erroneous cancel operation can be automatically invalidated.

  Further, in the fall detection terminal according to the present invention, the cancel invalid means is in a state in which the body motion that has been continuously detected since the input of the cancel operation is not detected and then the body motion exceeding the predetermined reference is not detected. The input canceling operation may be invalidated when the continuation time of the time reaches a certain time or more.

  With this configuration, after the body motion that has been continuously detected since the cancel operation is input is no longer detected, the cancel operation is performed when the duration of the state in which the body motion is not detected exceeds a certain time. Is automatically disabled. Thereby, it can be determined that there is a body movement due to the movement of the user accompanying the cancel operation, and the correctness of the cancel operation can be appropriately determined.

  Further, in the fall detection terminal of the present invention, the fall determination unit is configured to detect the body movement that exceeds a predetermined first reference within a cancellation determination time after detecting the user's fall from the motion data. It is determined that a fall abnormality has occurred, and the cancel invalidation means is input when body movement higher than the second reference higher than the first reference is not detected within the state confirmation time after the input of the cancel operation. The cancel operation may be invalidated.

  With this configuration, different standards are used for body motion detection for determining a fall abnormality and body motion detection for determining invalidity of a cancel operation. By using a criterion (second criterion) higher than a criterion (first criterion) for detecting body motion for determining an abnormal fall as a criterion for detecting body motion for determining invalidity of the canceling operation, it is possible to determine invalidity of the canceling operation. Can be performed appropriately.

  Further, in the fall detection terminal of the present invention, the fall detection terminal further includes an emergency operation means for the user to input an emergency operation, an emergency monitoring means for making an emergency report when the emergency operation is input, And the emergency monitoring means may cause the fall abnormality.

  With this configuration, when an emergency operation is input when a fall abnormality occurs, the emergency report has priority over the fall abnormality. Thereby, an emergency report can be performed appropriately.

  The program of the present invention is a program executed by a fall detection terminal that detects a fall of a user, and the fall detection terminal includes a motion sensor that detects movement of the fall detection terminal and outputs motion data. The program includes a process for determining whether or not a fall abnormality due to the user's fall has occurred based on the motion data, and notifying the user of the occurrence of the fall abnormality. A process in which the user inputs a cancel operation for the overturn abnormality, and a case where the cancel operation is input after the overturn abnormality has occurred, and a body exceeding a predetermined standard after the input of the cancel operation And a process of invalidating the input cancel operation when no motion is detected.

  Also with this program, similarly to the above terminal, motion data indicating the user's motion is acquired by the motion sensor, and the user's fall abnormality is determined from the motion data. When a fall abnormality occurs, the user can perform a cancel operation for the fall abnormality. However, even if a cancel operation is input after the occurrence of a fall abnormality, the cancel operation is invalidated if no body movement exceeding a predetermined reference is detected after the cancel operation is input. Accordingly, when a cancel operation is erroneously performed despite an emergency due to a fall, the cancel operation (incorrect cancel operation) can be automatically invalidated. That is, it is possible to appropriately determine the fall abnormality in consideration of the possibility of an erroneous cancel operation.

  According to the present invention, it is possible to determine a fall abnormality in consideration of the possibility of an erroneous cancel operation.

It is a block diagram of a fall detection terminal in an embodiment of the present invention. It is a figure which shows an example of the acceleration data for demonstrating fall detection. It is a flowchart for operation | movement description of the fall detection terminal in embodiment of this invention.

  Hereinafter, a fall detection terminal according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a case of a fall detection terminal used in a monitoring system or the like that detects the fall of an elderly person is exemplified. The function of the fall detection terminal (fall detection function) can be realized by a program stored in a memory or the like of the terminal.

  The fall detection terminal is a terminal device carried by a user (such as an elderly person). For example, the fall detection terminal is composed of a wristband type (watch type) wearable terminal, and a user (such as an elderly person) is worn on the wrist or arm. The fall detection terminal may be a pendant type that hangs from the neck, a head-mounted type that is attached to the head or ear, or a waist-mounted type such as a belt type.

  First, the configuration of the fall detection terminal of the present embodiment will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the fall detection terminal of the present embodiment. As shown in FIG. 1, the fall detection terminal 1 includes an acceleration sensor 2, a mounting sensor 3, an altitude sensor 4, and an emergency button 5. The fall detection terminal 1 includes an operation display unit 6, a vibration unit 7, a power supply unit 8, a wireless communication unit 9, and a monitoring control unit 10.

  The acceleration sensor 2 is a sensor having a function of detecting a user's movement and outputting movement data (acceleration data) indicating the movement of the user, and is composed of, for example, a three-axis acceleration sensor. The acceleration sensor 2 outputs acceleration data detected at a predetermined sampling period. The mounting sensor 3 is a sensor having a function of detecting a mounting state (whether or not it is mounted) on a human body (arm). For example, a capacitive sensor or the like can be used to electrically detect contact and proximity of a human body mounting site. It consists of sensors that can be detected automatically. The altitude sensor 4 is a sensor having a function of detecting a change in the height of the terminal using a change in atmospheric pressure or the like, and is composed of, for example, an atmospheric pressure sensor. The emergency button 5 is an operation unit (emergency operation unit) for a user to make an emergency report in an emergency.

  The operation display unit 6 includes, for example, a touch panel display, and includes a function for displaying various information such as abnormality notification (information display function) and a function for performing various input operations such as a cancel operation (input operation function). Yes. The vibration unit 7 is composed of a vibration device or the like, and has a function of notifying a user of an abnormality or operation acceptance by a stimulus by vibration. The power supply unit 8 includes a battery such as a battery. The wireless communication unit 9 has a function of performing wireless communication with a security terminal 12 installed in a remote monitoring center 11 via, for example, a mobile communication network. In addition, the wireless communication unit 9 has a function of performing wireless communication with a security terminal (not shown) installed in the house by Bluetooth (registered trademark) or specific low power wireless.

  The monitoring control unit 10 is an emergency monitor having a function of performing emergency monitoring based on input from each sensor (acceleration sensor 2, wearing sensor 3, altitude sensor 4) and operation unit (emergency button 5, operation display unit 6). A life monitoring unit 14 having a function of performing life monitoring, and a fall monitoring unit 15 having a function of performing fall monitoring. In addition, the monitoring control unit 10 has a function of controlling each unit of the fall detection terminal 1.

  The emergency monitoring unit 13 has a function of making an emergency report to the monitoring center 11 when the user operates the emergency button 5 in response to an emergency response. For example, if the emergency button 5 is kept pressed for 2 seconds, it is determined that the emergency is abnormal, the emergency abnormality is notified to the monitoring center 11, and the fact that the abnormality is confirmed is notified to the surroundings by vibration, screen, sound, light, or the like. Since the emergency abnormality is an abnormality caused by conscious operation, the cancel operation is not accepted. The emergency monitoring unit 13 gives priority to the emergency abnormality over those abnormalities (life abnormalities and fall abnormalities) even if the life abnormalities and fall abnormalities (described later) occur.

  Based on the output of the acceleration sensor 2, the life monitoring unit 14 monitors whether the user (carrier or wearer) is moving to an extent that occurs in daily life, and confirms that the state where the user cannot move due to sudden illness or the like continues. It has a function to report. The life monitoring unit 14 performs life monitoring when in the wearing state (mounted state). For example, a user's movement (body movement) is detected from the output of the acceleration sensor 2, and it is determined that there is a life abnormality if body movement at the daily life level does not occur continuously for a certain period (for example, 1 hour). If it is determined that the life is abnormal, the user is notified by vibration, screen, sound, light, or the like. The life monitoring unit 14 cancels the life abnormality when the body movement is detected during a predetermined cancel time (for example, 10 seconds) or a cancel operation is input after determining / notifying the life abnormality ( Do not report errors). The body movement detection process is the same as the process in the fall monitoring (described later).

  Here, the basic logic of fall detection will be described. The fall monitoring unit 15 analyzes the change in acceleration based on the output (acceleration data) of the acceleration sensor 2, and detects a fall by extracting a fall event in which a feature that seems to fall is present. The fall monitoring unit 15 has a function of performing various fall determinations (fall detection). The fall monitoring unit 15 includes a fall determination unit 16 as a configuration for that purpose.

FIG. 2 shows an example of acceleration data for explaining the fall detection. The fall determination unit 16 may detect “impact” from the output of the acceleration sensor 2 and detect the fall based on the detection result (evaluation value). In this case, the fall determination unit 16 detects an acceleration peak equal to or higher than a predetermined threshold (for example, 30 m / sec ² ) from the acceleration data to be processed for the fall determination. Then, an acceleration change amount H (accumulated value of acceleration change) is obtained for a certain period including the acceleration peak time (for example, 100 msec, 50 msec before and after the peak). The fall determination unit 16 determines that the user has fallen if the acceleration change amount H is equal to or greater than a predetermined fall reference value (for example, 50 m / sec ² ). That is, it is determined that there is an overturn abnormality.

For example, by using Equation 1 below, the absolute value of the difference from the previous acceleration is obtained for acceleration data (scalarized acceleration data a1, a2,..., A5) within a predetermined period (eg, 100 msec). The acceleration change amount H is calculated by integrating over this period. The acceleration change amount H may be calculated for each of the three axes (X axis, Y axis, Z axis) of the acceleration sensor, and may be calculated as the sum or average of the three axes.
H = | a1-a2 | + | a2-a3 | +... || a4-a5 | (Formula 1)

  Note that the fall determination unit 16 may perform the fall determination (fall detection) based on the acceleration value (peak value P) at the acceleration peak. Further, the fall determination unit 16 may perform the fall determination (fall detection) based on the ratio H / P between the acceleration change amount H and the peak value P. In addition, the fall determination unit 16 does not obtain the acceleration change amount H for a certain period before and after the acceleration peak, but obtains the acceleration change amount H for a certain period before and after the sequentially input acceleration data, or every certain period. In addition, the acceleration change amount H during the period may be obtained and the fall determination (fall detection) may be performed. In addition, the fall determination unit 16 may detect “free fall characteristics” from the output of the acceleration sensor 2 and detect the fall based on the detection result (evaluation value). Alternatively, the fall determination unit 16 may detect “impact” and “free fall characteristics” from the output of the acceleration sensor 2 and detect the fall based on each detection result (evaluation value).

The fall determination unit 16 has a function of automatically canceling the fall detection. In the fall determination unit 16, an automatic cancellation process based on body movement detection is performed. That is, even if a fall is detected, the user is considered not in a dangerous state if body movement is detected thereafter, and the fall determination unit 16 automatically cancels the fall detection. In this body motion detection (automatic canceling process), body motion of a predetermined delay time (for example, 3 seconds) is ignored from the time point when the fall is detected (or the peak time point), and the subsequent cancel determination time (for example, 15 seconds). The presence or absence of body movement during the period is determined. The presence or absence of body movement is determined by observing the peak value of acceleration or the amount of change. For example, when a peak value equal to or greater than a predetermined threshold (for example, 12 m / sec ² ) is detected a predetermined number of times (for example, 5 times), or when the sum of the peak values exceeds a certain value (for example, 80 m / sec ² ) In addition, body movement is detected. Alternatively, when the total amount of acceleration change in a certain period (for example, several seconds) or body movement determination time exceeds a certain value (for example, 150 m / sec ² ), or the amount of acceleration change per unit time (for example, When it exceeds 30 m / sec ² ), body movement is detected. If no body movement is detected before the cancellation determination time elapses after the fall is detected, the fall determination unit 16 determines the fall abnormality.

  In addition, the fall detection terminal 1 has a function of canceling an abnormality by a user performing a predetermined cancel operation on the operation display unit 6 when there is no need for an abnormality report. It should be noted that all abnormalities including emergency abnormalities may be subject to cancellation, and only fall abnormalities may be subject to cancellation. When the fall determination unit 16 determines that the fall is abnormal, the user is notified from the vibration unit 7 (or the operation display unit 6). When the user inputs a cancel operation within a predetermined report delay time (for example, 20 seconds), the report of abnormality (report to the monitoring center 11) is canceled.

  Further, the fall detection terminal 1 has a function of invalidating an erroneous cancel operation. The fall monitoring unit 15 includes a cancel invalidation unit 17 as a configuration for that purpose. In the cancel invalidation unit 17, when a cancel operation for an overturn abnormality is input, the user's state is confirmed based on the user's body movement after the cancel operation in order to confirm whether or not the operation is erroneous. That is, when a cancel operation is input, the cancel invalidation unit 17 does not immediately cancel the overturn abnormality, but monitors / confirms the user's body movement for a certain time (state confirmation time, for example, 15 seconds) ( Execute status confirmation processing. The cancel operation is accepted (validated) for the first time when a predetermined body movement is detected before the state confirmation time elapses, and the overturn abnormality is canceled. On the other hand, when body movement is hardly detected during the state confirmation time, it is regarded as an erroneous operation, the input cancel operation is invalidated, a fall abnormality is confirmed, and an abnormality is reported.

  The determination criterion for body motion detection for determining cancel invalidity (for enabling the cancel operation) may be the same as the determination criterion for body motion detection for automatic cancel determination. However, if the cancel operation is correctly performed, the user confirms the abnormality notification and performs the cancel operation. Therefore, it is considered that the user moves to a certain extent (large motion, continuous motion) even after the operation. On the other hand, when the cancel operation is performed by mistake, for example, it is considered that the user in a state where the consciousness is lowered continues the slow movement (movement of a level not automatically canceled) similar to that before the operation even after the cancel operation. It is also assumed that body movement slightly larger than that before the operation is detected by the movement accompanying the cancel operation.

Therefore, the body motion detection criterion for cancel invalidity determination has a higher threshold value such as a peak value, a change amount, and the number of times than the body motion detection criterion for automatic cancel determination. Is preferred. For example, when a peak value equal to or greater than a predetermined threshold (for example, 14 m / sec ² ) is detected a predetermined number of times (for example, 5 times), or when the sum of the peak values exceeds a certain value (for example, 100 m / sec ² ) In addition, body movement is detected. Alternatively, when the total amount of change in acceleration over a certain period (for example, several seconds) or body movement determination time exceeds a certain value (for example, 180 m / sec ² ), or the amount of change in acceleration per unit time is a constant value When it exceeds (for example, 40 m / sec ² ), body movement is detected. As a result, the cancel operation is effectively processed only when a firmer movement than before the cancel operation is recognized.

Moreover, the cancel invalid part 17 excludes the acceleration change that occurs when the cancel operation is input from the body motion detection target for cancel invalid determination. Specifically, after the input of the cancel operation, the acceleration peak that occurs first (peak value is gravitational acceleration of 9.8 m / sec ² or more) is ignored, and cancel invalidity determination is performed on the subsequent acceleration data. That is, a series of acceleration changes including the input time point of the cancel operation is excluded from the determination target. It should be noted that a predetermined number (for example, three) of acceleration peaks that occur after the input of the cancel operation may be ignored, and a predetermined time (for example, 3 seconds) after the input of the cancel operation is uniformly excluded from the cancel invalidity determination target. It may be excluded. Thereby, it is prevented that the cancel operation is erroneously determined to be valid due to the movement of the user accompanying the cancel operation.

As described above, the cancel invalid part 17 is a case where the cancel operation is input after the occurrence of the overturning abnormality, and the body motion exceeding the predetermined reference (for example, 14 m / sec ² ) is not detected after the input of the cancel operation. , Disable the cancel operation.

In this case, the cancel invalidation unit 17 is a case where the cancel operation is input within the notification delay time (for example, 20 seconds) when the cancel operation is input, and the state confirmation time after the input of the cancel operation (for example, 15 seconds) ) Is accepted as an effective canceling operation when a body movement exceeding a predetermined standard (for example, 14 m / sec ² ) is detected, and the canceling operation is invalidated when it is not detected. Specifically, the cancel invalidation unit 17 determines that the duration of the state in which no body motion is detected after the body motion that has been continuously detected since the input of the cancel operation is not detected is a fixed time (for example, 15 seconds). In such a case, the cancel operation is invalidated.

Further, the fall determination unit 16 detects body movements of a predetermined first reference (for example, 12 m / sec ² ) or more within a cancellation determination time (for example, 15 seconds) after detecting the user's fall from the acceleration data. If it is, it is determined that no overturn abnormality has occurred. On the other hand, the cancel invalidating unit 17 detects a body motion that is higher than the second reference (for example, 14 m / sec ² ) higher than the first reference within a state confirmation time (for example, 15 seconds) after inputting the cancel operation. , Disable the cancel operation.

  Next, the operation of the fall detection terminal 1 of the present embodiment will be described with reference to the flowchart of FIG. As described above, the fall detection terminal 1 according to the present embodiment performs the process of detecting the user's fall from the acceleration data. If a fall is detected, the fall detection terminal 1 performs the body motion detection process based on the cancellation determination time, and then falls. Confirm the abnormality. Thereafter, the fall detection terminal 1 performs a cancel operation acceptance process and a cancel invalidity determination process shown in FIG.

  In the fall detection terminal 1 that detects the fall abnormality, first, the fall flag indicating the occurrence of the fall abnormality is turned ON (S1), and the user is notified of the fall abnormality (S2). Thereafter, it is determined whether or not a cancel operation is performed by the user (S3). If the notification delay time (for example, 20 seconds) has elapsed without the cancel operation (S4), the fall abnormality is determined as it is (S5).

  On the other hand, when the cancel operation is performed before the report delay time (for example, 20 seconds) elapses, the cancel flag indicating that the overturn abnormality cancel operation has been performed is turned ON (S6). Thereafter, a body motion detection process for detecting the user's body motion from the acceleration data is performed (S7), and it is determined whether or not a predetermined body motion that satisfies the cancel invalidity determination criterion is detected (S8). When the state confirmation time (for example, 15 seconds) elapses without detecting the user's body movement (S9), the cancel flag is turned OFF to cancel the cancel operation (S10), and the fall abnormality is determined (S5). ). On the other hand, if the user's body movement is detected before the state confirmation time (for example, 15 seconds) elapses, the cancel operation is accepted as valid and the fall flag is turned off (S11). That is, the overturn abnormality is canceled.

According to such a fall detection terminal 1 of the present embodiment, acceleration data indicating a user's movement is acquired by the acceleration sensor 2, and a user's fall abnormality is determined from the acceleration data. When a fall abnormality occurs, the user can perform a cancel operation for the fall abnormality. However, even when a cancel operation is input after the occurrence of a fall abnormality, if no body movement exceeding a predetermined reference (for example, 14 m / sec ² ) is detected after the cancel operation is input, the cancel operation is invalidated. To do. Accordingly, when a cancel operation is erroneously performed despite an emergency due to a fall, the cancel operation (incorrect cancel operation) can be automatically invalidated. That is, it is possible to appropriately determine the fall abnormality in consideration of the possibility of an erroneous cancel operation.

In this case, even if the cancel operation is input within a predetermined time (report delay time, for example, 20 seconds) after the occurrence of the fall abnormality, the predetermined time (state confirmation time, for example, 15 seconds) after the input of the cancel operation. ), If no body movement exceeding a predetermined standard (for example, 14 m / sec ² ) is detected, the cancel operation is automatically invalidated. Thereby, an erroneous cancel operation can be automatically invalidated.

  Specifically, after the body motion that has been continuously detected since the input of the cancel operation is no longer detected, the duration of the state in which the body motion is not detected becomes a certain time (for example, 15 seconds) or more. The cancel operation is automatically disabled. Thereby, it can prevent determining with the body motion by a user's motion accompanying cancellation operation, and can determine correctly the correctness of cancellation operation.

In the present embodiment, different standards are used for body motion detection for determining a fall abnormality and body motion detection for determining invalidity of a cancel operation. By using a standard (for example, 14 m / sec ² ) higher than a standard for detecting body movement (for example, 12 m / sec ² ) for determining a fall abnormality as a standard for detecting body movement for determining invalidity of a cancel operation, It is possible to appropriately determine whether the operation is invalid.

  In the present embodiment, when an emergency operation is input when a fall abnormality has occurred, the emergency report has priority over the fall abnormality. Thereby, an emergency report can be performed appropriately.

  The embodiments of the present invention have been described above by way of example, but the scope of the present invention is not limited to these embodiments, and can be changed or modified according to the purpose within the scope of the claims. is there.

  As described above, the fall detection terminal according to the present invention has an effect that it is possible to determine a fall abnormality in consideration of the possibility of an erroneous cancel operation, and a monitoring system that detects the fall of an elderly person or the like. Is useful.

1 Fall detection terminal 2 Acceleration sensor (motion sensor)
3 Wearing sensor 4 Altitude sensor 5 Emergency button (emergency operation means)
6 Operation display (cancel operation means)
7 Vibration part (notification means)
DESCRIPTION OF SYMBOLS 8 Power supply part 9 Wireless communication part 10 Monitoring control part 11 Monitoring center 12 Security terminal 13 Emergency monitoring part (emergency monitoring means)
14 Life monitoring unit 15 Fall monitoring unit 16 Fall judging unit (fall judging means)
17 Cancellation invalid part (cancellation invalidation means)

Claims (6)

In a fall detection terminal that is carried by a user and detects the fall of the user,
A motion sensor that detects movement of the fall detection terminal and outputs movement data;
A fall judging means for judging whether or not a fall abnormality due to the fall of the user has occurred based on the motion data;
Informing means for informing the user of the occurrence of the fall abnormality,
A cancel operation means for the user to input a cancel operation for the abnormal fall;
Cancel invalidation means for invalidating the input cancel operation when the cancel operation is input after the occurrence of the overturn abnormality and no body movement exceeding a predetermined reference is detected after the cancel operation is input. When,
A fall detection terminal comprising:   The cancel invalid means is a case where the cancel operation is input within a notification delay time after the occurrence of the overturn abnormality, and a body movement that exceeds the predetermined standard within a state confirmation time after the input of the cancel operation. The fall detection terminal according to claim 1, wherein the input canceling operation is invalidated when no is detected.   The cancel invalid means is configured such that after the body motion that has been continuously detected since the input of the cancel operation is no longer detected, the duration of the state in which the body motion exceeding the predetermined reference is not detected becomes a certain time or longer. The fall detection terminal according to claim 2, wherein the input cancel operation is invalidated. The fall determination means determines that the fall abnormality has occurred when a body movement exceeding a predetermined first reference is not detected within a cancellation determination time after detecting the user's fall from the motion data;
The cancel invalidating unit invalidates the input cancel operation when a body motion not lower than a second reference higher than the first reference is detected within a state confirmation time after the input of the cancel operation. The fall detection terminal in any one of 1-3. The fall detection terminal further includes an emergency operation means for the user to input an emergency operation,
Emergency monitoring means for making an emergency report when the emergency operation is input;
With
The fall detection terminal according to any one of claims 1 to 4, wherein the emergency monitoring means prioritizes the emergency report over the fall abnormality when the emergency operation is input when the fall abnormality occurs. . A program executed on a fall detection terminal that detects a user's fall,
The fall detection terminal is provided with a motion sensor that detects movement of the fall detection terminal and outputs movement data,
The program is a process of determining whether or not a fall abnormality due to the fall of the user has occurred based on the motion data in a computer;
A process of notifying the user of the occurrence of the fall abnormality;
A process in which the user inputs a cancel operation for the fall abnormality;
When the cancel operation is input after the occurrence of the overturn abnormality, and when a body movement exceeding a predetermined reference is not detected after the input of the cancel operation, a process of invalidating the input cancel operation;
A program characterized by having executed.

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