JP7379986B2 - Monitoring device, monitoring system, monitoring method, and monitoring device control program - Google Patents

Description

The present invention relates to a monitoring device and a monitoring method.

As a means of monitoring to prevent accidents caused by wandering elderly people or children getting lost, there is a method of equipping vehicles with devices that transmit location information wirelessly. This method requires that the person being monitored is wearing the device, but if a smartphone or the like is used, there is a risk of forgetting to carry the device or dropping the device. On the other hand, the method of wrapping the device around the body with a band or the like, which emphasizes ensuring that the device is worn securely, may cause discomfort to the person being monitored. Therefore, in order to ensure that the device is worn securely and the person being monitored can continue to carry it without being aware of it, efforts have been made to make it smaller and thinner so that it can be attached to everyday items without causing any discomfort. being done.

For example, Patent Document 1 discloses an invention of an insole that includes a personal information storage section, a current position acquisition section, a transmission section, a vibration power generation section, and a power storage section. When the person being watched wears this insole and the supervisor receives the data transmitted from the insole, the location of the person being watched can be identified.

Patent No. 5978477

However, the monitoring method using the insole of Patent Document 1 has a problem in that it is not obvious that someone other than the person being watched is wearing the insole. For example, if someone wears the device by mistake or intentionally lets someone else wear it with malicious intent, that person's location information may be disclosed to an unintended party, or the impersonation may go unnoticed. In addition, because the user continues to recognize another person as the person being watched over, there is a problem in that it is delayed in realizing that the true whereabouts of the person being watched over is unknown.

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a monitoring system that allows the person being watched to determine whether or not the person being watched is a valid person to be watched, without causing the person being watched to feel uncomfortable. It is an object.

In order to solve the above problems, the monitoring device includes a wearing terminal management means, a reference gait data acquisition means, a gait data reception means, and a wearer validity determination means. The worn terminal management means acquires correspondence information between the person to be watched and the worn terminal worn by the person to be watched. The reference gait data acquisition means acquires reference gait data that serves as a reference for gait data representing the characteristics of the gait of the person to be watched. The walking data receiving means receives walking data transmitted from the wearing terminal. The wearer validity determining means compares the received walking data with reference walking data and determines whether the wearer of the wearing terminal is a valid monitoring target.

An advantage of the present invention is that it is possible to provide a monitoring system that can determine whether or not the person being watched is a legitimate person to be watched, without the person being watched feeling uncomfortable.

FIG. 1 is a block diagram showing a monitoring device according to a first embodiment. It is a block diagram showing a monitoring system of a second embodiment. It is a table which shows an example of the storage table of the reference|standard walk data of 2nd Embodiment. 7 is a table showing an example of a position information storage table according to the second embodiment. It is a flowchart which shows operation of a monitoring server of a 2nd embodiment. It is a block diagram showing a monitoring system of a 3rd embodiment. It is a flow chart which shows operation of a monitoring server of a 3rd embodiment. It is a block diagram showing a monitoring system of a 4th embodiment. FIG. 7 is a schematic diagram showing an example of application of the fourth embodiment. FIG. 7 is a perspective view showing an example of mounting a mounting terminal according to a fifth embodiment.

Embodiments of the present invention will be described in detail below with reference to the drawings. However, although the embodiments described below include technically preferable limitations for implementing the present invention, the scope of the invention is not limited to the following. Note that similar components in each drawing may be designated by the same numbers and their descriptions may be omitted.

(First embodiment)
FIG. 1 is a block diagram showing a monitoring device 10 of this embodiment. The monitoring device 10 includes a wearing terminal management means 1, a reference walking data acquisition means 2, a walking data receiving means 3, and a wearer validity determining means 4.

The worn terminal management means 1 acquires the correspondence between the person to be watched and the worn terminal worn by the person to be watched.

The reference gait data acquisition means 2 acquires reference gait data that serves as a reference for gait data representing the characteristics of the gait of the person to be watched.

The walking data receiving means 3 receives walking data transmitted from the wearing terminal.

The wearer validity determining means 4 compares the received walking data with reference walking data and determines whether the wearer of the wearing terminal is a valid monitoring target.

With the above configuration, it is possible to determine whether the wearer of the wearable terminal is a legitimate person to be watched over or a different person using the walking data acquired by the wearable terminal. Therefore, if the wearable terminal is made to be able to be worn without discomfort, the person to be watched over can watch over the person without feeling uncomfortable.

(Second embodiment)
FIG. 2 is a block diagram showing the monitoring system 1000 of this embodiment. The monitoring system 1000 includes a mounting terminal 100 and a monitoring server 200. The monitoring server 200 corresponds to the monitoring device 10 of the first embodiment.

The worn terminal 100 includes a worn terminal identification information storage section 110 , a walking data acquisition section 120 , a position information acquisition section 130 , and a worn terminal data transmission section 140 . The installed terminal identification information storage unit 110 stores identification information of the installed terminal. The walking data acquisition unit 120 acquires walking data of a wearer wearing a wearable terminal. The walking data is data such as changes in acceleration and vibration that are measured when the wearer of the wearing terminal 100 walks. Gait data reveals characteristics unique to an individual, so it is possible to identify an individual using the gait data. An explanation of how to identify an individual will be omitted here, but a method for identifying pedestrians by analyzing walking data (vibration measurement data associated with walking) is disclosed, for example, in International Publication No. 2017/188418. . The position information acquisition unit 130 acquires the position information of the wearing terminal 100. Specifically, the position of the attached terminal 100 is determined by receiving radio waves from a satellite or a communication base station. The wearing terminal data transmitting unit 140 transmits wearing terminal data including walking data and position information in association with the wearing terminal identification information to the monitoring server 200 using, for example, wireless.

The monitoring server 200 includes a worn terminal management section 210, a standard gait data acquisition section 220, a worn terminal data reception section 230, a gait data collation section 240, a position information monitoring section 250, and an unauthorized wearing notification section 260. are doing.

The worn terminal management unit 210 obtains link information between the identification information of the worn terminal and the person to be watched. This linking information may be stored in the attached terminal management section 210 or may be obtained from an external storage device or the like. The reference gait data acquisition unit 220 acquires reference gait data that serves as a reference for the gait data of the person to be watched. This reference gait data may be stored in the reference gait data acquisition unit 220 or may be obtained from an external storage device or the like. The installed terminal data receiving unit 230 receives installed terminal data. The walking data matching unit 240 matches the received walking data with reference walking data of the person to be watched over, and determines whether the wearer is the person to be watched linked to the wearing terminal.

The position information monitoring unit 250 monitors the position information of the wearing terminal 100. If it is determined that the wearer is the person to be monitored, the position information of the wearer is sent to the monitor terminal 300, which is a registered regular information receiving terminal. The supervisor who holds the supervisor terminal 300 is, for example, an employee of the facility or a family member. On the other hand, if the wearer is not the person to be monitored, that is, if the wearer is an unauthorized wearer, the location information is not sent to the supervisor terminal 300, and the unauthorized wear notification unit 260 alerts the wearer to the unauthorized wearer by display, audio, etc. Notify that it is attached. Targets to be notified include, for example, facility managers and security guards. The hardware of the wearing terminal 100 can be, for example, a portable communication device equipped with a communication function, a processor, a memory, etc., and the hardware of the monitoring server 200 can be, for example, a computer equipped with a communication function.

FIG. 3 is a table showing an example of a reference gait data table acquired by the reference gait data acquisition unit 210. In this example, the reference gait data table includes the wearing terminal ID (column A), the person to be monitored (column B), the reference gait characteristics (column C), the supervisor (column D), the supervisor address (column E), and others. Information is retained. Note that ID is an abbreviation for IDentifier, identification information. The standard walking data is obtained by measuring changes in acceleration when the person to be watched over walks, and converts the standard walking trajectory and movement speed of the person to be watched into data. The supervisor is, for example, a staff member of a facility to which the person to be watched belongs, a family member, or the like, and is a person to whom personal information of the person to be watched may be disclosed. The contact information (e-mail address, etc.) is registered in advance as a regular contact information. Further, the other information column stores address/age/blood type/medical history, etc.

FIG. 4 is a table showing an example of a storage table of position information of the attached terminal 100. By recording the location information in another table together with the installed terminal ID and time in the location information monitoring unit 250, it can be called up later.

FIG. 5 is a flowchart showing the operation of the monitoring server 200. First, the reference gait data acquisition unit 210 reads out the reference gait data of the person to be watched linked to the wearing terminal ID (S101). Next, the installed terminal data receiving unit 220 receives the installed terminal data (S102). The worn terminal data includes a worn terminal ID, walking data, and position information. Note that the order of S101 and S102 may be reversed. Next, the location information monitoring unit 250 stores the location information of the attached terminal 100 (S103). Next, the walking data matching unit 250 matches the received walking data with the reference walking data of the person to be watched (S104). Verification can be performed, for example, by repeating acquisition of walking data and matching of the walking data with reference walking data a predetermined number of times to determine whether a predetermined similarity condition is satisfied. If it is determined that the two match (S105_Yes), it is determined that the wearer is a legitimate person to be monitored, and the position information is transmitted to the supervisor terminal (S106). On the other hand, if the wearer's walking data do not match (S105_No), the server 200 monitors the possibility of unauthorized wearing and notifies the wearer (S107). This notification can be made so that only the facility manager and security guard can see it, for example.

As described above, according to the present embodiment, it is possible to determine whether the wearer of the attached terminal is the correct person to be monitored, and only if the wearer is correct, the position information can be notified to the supervisor.

(Third embodiment)
FIG. 6 is a block diagram showing the monitoring system 1001 of this embodiment. In addition to the monitoring server 200 of the second embodiment, the monitoring server 201 of this embodiment includes a similar walking data search section 270 and an unauthorized wearing candidate output section 280. Furthermore, a related person reference gait data acquisition unit 210a is provided to obtain reference gait data of related persons such as staff of the facility to which the person to be watched belongs and family members of the person to be watched.

In the monitoring system 1001, when the wearer of the wearable terminal 100 is not the person to be watched corresponding to the wearable terminal ID, there is no other person to be watched or related person who is wearing the wearable terminal 100 by mistake. or can be explored.

If the received walking data does not match the reference walking data corresponding to the wearing terminal ID, it means that someone other than the corresponding person to be watched is wearing the wearing terminal 100. At this time, the similar gait data search unit 270 reads out the reference gait data of other people to be watched from the reference gait data acquisition unit 210, and searches for any matching gait data with the received gait data. Here, if there is no match, a search is made to see if there is any matching with the received gait data among the reference gait data acquired by the related person reference gait data acquisition unit 210a. If a match is found, the corresponding other person to be monitored or related person is determined to be a candidate for unauthorized attachment, and is outputted from the unauthorized attachment candidate output unit by display, printing, or other means. . Note that the above-mentioned match determination can be performed, for example, by determining that the degree of similarity satisfies a predetermined criterion.

FIG. 7 is a flowchart showing the operation of the monitoring server 201. Note that in this flowchart, the operations of S101 and S102 in FIG. 5 are omitted. First, the location information monitoring unit stores the received location information in association with the installed terminal ID (S201). Next, the walking data matching unit matches the received walking data with the reference walking data of the person to be watched corresponding to the wearing terminal ID (S202). Here, if the walking data and the reference walking data match (S203_Yes), it is confirmed that the wearer of the wearable terminal 100 is a legitimate person to be monitored, and the location information of the wearable terminal 100 is registered. The information is sent to the monitored supervisor terminal (S204).

On the other hand, if the received walking data and the reference walking data corresponding to the wearing terminal ID do not match (S203_No), the similar walking data search unit searches for other matching reference walking data. At this time, data in the reference gait data acquisition section and the related party reference gait data acquisition section is searched (S205). Here, if a match is found (S206_Yes), the corresponding other monitoring target or related person is output as a candidate for unauthorized attachment (S207). On the other hand, if there is no matching reference walking data (S206_No), since the wearer is unknown, only the possibility of unauthorized wearing is notified (S208).

According to the above-described operation, when a wearing terminal is illegally worn, there is a high possibility that the candidate wearing the wearing terminal illegally can be quickly identified. In addition, the correct person to be watched can be found quickly.

(Fourth embodiment)
FIG. 8 is a block diagram showing the monitoring system 1002 of this embodiment. The wearing terminal 102 has a beacon 150 and a walking data acquisition/transmission control section 160 in addition to the configuration of the wearing terminal 100 of the third embodiment. Furthermore, the monitoring server 202 includes a beacon information acquisition section 290 and an attached terminal operation control section 292 in addition to the configuration of the monitoring server 201 of the third embodiment.

FIG. 9 is a schematic diagram showing that a plurality of persons to be monitored who are wearing the wearing terminals 102 exist in the facility area 2000, and the monitoring server 202 monitors these persons. Beacon receivers 2100 are placed at various locations within the facility area. The beacon referred to here refers to a positioning technology that uses short-range wireless communication with low power consumption. Here, it is assumed that the installed terminal 102 periodically transmits a beacon signal, and the beacon receiver 2100 installed in the facility area 2000 receives this signal, so that the position of the installed terminal 102 can be specified. Further, it is assumed that once the installed terminal 102 moves out of the facility area 2000, the beacon signal transmitted from the installed terminal 102 does not reach the beacon receiver 2100.

The beacon information acquisition unit 290 of the monitoring server 202 acquires beacon information from beacon receivers located within the facility area, and identifies the position of the wearing terminal 102 that is the transmission source. Although the monitoring server 202 cannot acquire beacon information from the worn terminal 102 located outside the facility area 2000, similar to the second and third embodiments, the monitoring server 202 can acquire the beacon information from the worn terminal 102 by receiving the worn terminal data. can be located. If it is determined from the received walking data that the wearer of the wearable terminal 102 is a valid person to be monitored, the monitoring server 202 sends a message via the communication network 3000 as in the second and third embodiments. , transmits the position information of the person to be watched to the supervisor terminal 300. In the example of FIG. 9, a plurality of supervisor terminals 300 (300--1, 300-2, . . . ) are depicted.

The worn terminal control unit 292 of the monitoring server 202 causes the walking data acquisition/transmission control unit 160 to stop acquiring and transmitting walking data while the worn terminal 102 is within the facility area 2000 and beacon information can be acquired. Send commands. Upon receiving this command, the walking data acquisition/transmission control unit 160 controls the wearing terminal 102 to stop acquiring and transmitting the walking data. On the other hand, when the attached terminal 102 goes outside the facility area 2000 and the beacon receiver 2100 becomes unable to receive beacon signals, the monitoring server 202 also becomes unable to receive beacon information. If the beacon information cannot be received, the mounted terminal operation control unit 292 transmits a command to the walking data acquisition/transmission control unit 160 to acquire and transmit walking data. Upon receiving this command, the walking data acquisition/transmission control unit 160 controls the wearing terminal 102 to start acquiring and transmitting walking data. Note that the radio waves used for communication between the wearing terminal operation control unit 292 and the walking data acquisition/transmission control unit 160 are stronger than beacons and can reach outside the facility area 2000. Further, when the beacon signal received by the beacon receiver 2100 becomes weak, an alarm indicating this is notified to the monitoring server 202, and this may be used as a trigger to start controlling the acquisition of walking data.

In the example shown in FIG. 9, a plurality of people to be monitored are wearing the wearable terminals 102-1, 102-2, . . . , and the wearable terminal 102-2 is outside the facility area 2000. For example, if the wearer wearing the wearing terminal 102 is an elderly person, the wearer is in a wandering state.

The above series of operations can be summarized as follows. When the wearer wearing the wearing terminal 102-2 leaves the facility area 2000, the beacon receiver 2100 becomes unable to receive beacon signals. Then, the monitoring server 202 determines that the person wearing the wearing terminal 102-2 has left the facility area 2000, that is, has started wandering. Then, the worn terminal operation control unit 292 instructs the worn terminal 102-2 to acquire walking data and start transmitting the worn terminal data. As a result, acquisition and transmission of walking data of the wearing terminal 102-2 and monitoring of position information are started. This monitoring is repeated until the installed terminal 102-2 returns to the facility area 2000 and the beacon information is reacquired by the monitoring server 202. While receiving the wearable terminal data, as in the second and third embodiments, the operation of determining whether the wearer is a legitimate person to be monitored, and the operation of determining whether the wearer is wearing the wearable terminal illegally. Explore. According to the above operation, while the worn terminal is within the facility area, the worn terminal does not acquire location information, walking data, or transmit worn terminal data, so the power consumption of the worn terminal is reduced. You can save money. The monitoring system of this embodiment is suitable for elderly care, child monitoring, worker/prisoner management, and the like.

(Fifth embodiment)
FIG. 10 is a perspective view showing an example of the mounting form of the mounting terminal according to the fourth embodiment. The mounting terminal 102a of this embodiment is an insole-type electronic device that can be mounted inside footwear. In the wearing terminal 102a, a control/storage section 110a, a position information acquisition section 120a, a sensor section 130a, a transmission/reception section 140a, a beacon 150a, and a power supply section 160a are mounted on an insole main body 170a. The control/storage unit 110a stores personal identification information, and controls the position information acquisition unit 120a, the sensor unit 130a, the transmission/reception unit 140a, and the beacon 150a. The position information acquisition unit 120a receives radio waves from a satellite or a communication base station and measures the position of the terminal. The sensor unit 130a includes a sensor such as an acceleration sensor that senses the movement and state of the attached terminal. The transmitting/receiving unit 140a transmits attached terminal data and the like, and receives commands and the like from the monitoring server. The beacon 150a transmits a signal indicating the location of the attached terminal 102. The power supply section 160a includes a battery and supplies power to each section constituting the mounting terminal 102.

By using such an insole-type wearing terminal, the person to be watched over can unconsciously wear the wearing terminal just by putting on shoes. Furthermore, if the insole body is shaped to fit the foot, the person being watched can wear the wearing terminal without feeling uncomfortable.

The scope of the present invention also includes a program that causes a computer to execute the processes of the first to fourth embodiments described above, and a recording medium that stores the program. As the recording medium, for example, a magnetic disk, magnetic tape, optical disk, magneto-optical disk, semiconductor memory, etc. can be used.

The present invention has been described above using the first to fourth embodiments as exemplary examples. However, the present invention is not limited to the above embodiments. That is, the present invention can apply various aspects that can be understood by those skilled in the art within the scope of the present invention.

Part or all of the above embodiments may be described as in the following additional notes, but are not limited to the following.
(Additional note 1)
A worn terminal management means for acquiring a correspondence between a person to be watched and a worn terminal worn by the person to be watched;
a reference gait data acquisition unit that acquires reference gait data that serves as a basis for gait data representing characteristics of the gait of the person to be watched; and gait data reception unit that receives the gait data transmitted from the wearing terminal;
A monitoring device comprising: wearer validity determining means for comparing the received walking data with the reference walking data to determine whether the wearer of the wearing terminal is the legitimate person to be monitored.
(Additional note 2)
The monitoring device according to supplementary note 1, further comprising a position information receiving unit that receives position information of the wearing terminal transmitted from the wearing terminal.
(Additional note 3)
It is characterized by comprising an unauthorized wearing notification means for notifying that the wearing terminal is being illegally worn when the wearer validity determining means determines that the wearer is not the legitimate person to be monitored. The monitoring device according to either Supplementary Note 1 or 2.
(Additional note 4)
The reference gait data acquisition means includes:
obtaining the reference walking data of a person related to the monitoring target;
When the wearer validity determining means determines that the wearer is not the legitimate person to be watched, extracting the reference gait data similar to the gait data from the reference gait data acquisition means as similar gait data. Similar walking data extraction means,
The monitoring device according to any one of Supplementary Notes 1 to 3, further comprising: an unauthorized wearing candidate output means for outputting the person concerned who corresponds to the similar walking data as an unauthorized wearing candidate.
(Appendix 5)
Information transmitting means for transmitting information regarding the person to be watched over to a pre-registered authorized information receiving terminal when the wearer validity determining means determines that the wearer is the legitimate person to be watched over. The monitoring device according to any one of Supplementary Notes 1 to 4, characterized in that it has the following.
(Appendix 6)
The monitoring device according to appendix 5, wherein the information regarding the person to be monitored includes the position information.
(Appendix 7)
The monitoring device described in any one of Supplementary Notes 1 to 6,
and the wearing terminal worn by the person to be watched,
gait data acquisition means for the wearing terminal to acquire the gait data;
position information acquisition means for acquiring position information of the attached terminal;
A monitoring device characterized in that the walking data and the position information are linked to identification information of the wearing terminal and transmitted to the monitoring device.
(Appendix 8)
The attached terminal is
It has a beacon signal transmitting means for transmitting a beacon signal to a beacon signal receiver installed in a predetermined area,
the monitoring device obtains beacon information from the beacon signal receiver;
While the beacon information is being acquired, transmitting a command to the wearing terminal that is the source of the beacon signal to stop measuring the walking data and transmitting the wearing terminal data;
The monitoring device according to appendix 7, wherein the attached terminal performs an operation according to the command.
(Appendix 9)
Obtaining the correspondence between the person to be watched and the worn terminal worn by the person to be watched,
Obtaining reference gait data that serves as a reference for gait data representing the gait characteristics of the person to be watched;
receiving the walking data transmitted from the wearing terminal;
A monitoring method comprising: comparing the received walking data with the reference walking data to determine whether the wearer of the wearing terminal is the legitimate person to be watched over.
(Appendix 10)
The monitoring method according to appendix 9, further comprising receiving position information of the wearing terminal transmitted from the wearing terminal.
(Appendix 11)
The monitoring method according to any one of Supplementary notes 9 or 10, characterized in that, when it is determined that the wearer is not the legitimate person to be watched over, it is notified that the wearing terminal is being worn illegally.
(Appendix 12)
obtaining the reference walking data of a person related to the monitoring target;
If it is determined that the wearer is not the legitimate person to be watched over, extracting the reference gait data similar to the gait data from the reference gait data as similar gait data;
The monitoring method according to any one of appendices 9 to 11, characterized in that the person concerned corresponding to the similar walking data is output as a candidate for unauthorized wearing.
(Appendix 13)
Any one of appendices 9 to 12, characterized in that when the wearer is determined to be the legitimate person to be watched over, information regarding the person to be watched over is sent to a pre-registered authorized information receiving terminal. The monitoring method described in one.
(Appendix 14)
The attached terminal is
Sends a beacon signal to a beacon signal receiver installed within a predetermined area,
obtaining beacon information from the beacon signal receiver;
While the beacon information is being acquired, transmitting a command to the wearing terminal that is the source of the beacon signal to stop measuring the walking data and transmitting the walking data;
The monitoring method according to any one of appendices 9 to 13, wherein the attached terminal performs an operation according to the command.
(Appendix 15)
obtaining a correspondence between a person to be watched and a wearable terminal worn by the person to be watched;
acquiring reference walking data that serves as a reference for walking data acquired by the wearing terminal when the person to be watched walks;
receiving the walking data transmitted from the wearing terminal;
a step of comparing the received walking data with the reference walking data to determine whether the wearer of the wearing terminal is the legitimate person to be watched over; and a monitoring device control program for causing the monitoring device to execute processing. .

1 Wearing terminal management means 2 Reference walking data acquisition means 3 Walking data receiving means 4 Wearer validity determination means 10 Monitoring device 1000, 1001, 1002 Monitoring system 100 Wearing terminal 110 Wearing terminal identification information acquisition unit 120 Walking data acquisition unit 130 Position Information acquisition unit 140 Wearing terminal data transmission unit 150 Beacon 200, 201, 202 Monitoring server 210 Wearing terminal management unit 220 Reference walking data acquisition unit 230 Wearing terminal data reception unit 240 Walking data collation unit 250 Location information monitoring unit 260 Unauthorized wearing notification unit 270 Similar walking data search unit 280 Unauthorized wearing candidate output unit 290 Beacon information acquisition unit 300 Supervisor terminal 2000 Facility area

Claims (7)

A worn terminal management means for acquiring a correspondence between a person to be watched and a worn terminal worn by the person to be watched;
Reference gait data acquisition means for acquiring reference gait data serving as a reference for gait data representing the gait characteristics of the person to be watched over;
walking data receiving means for receiving the walking data transmitted from the wearing terminal;
Wearer validity determining means that compares the received walking data with the reference walking data to determine whether the wearer of the wearing terminal is the legitimate person to be monitored;
position information receiving means for receiving position information of the wearing terminal transmitted from the wearing terminal;
position information monitoring means for monitoring the position information;
has
The reference gait data acquisition means includes:
obtaining the reference walking data of a person related to the monitoring target;
The wearer validity determining means includes:
similar gait data extraction means for extracting the reference gait data similar to the gait data from the reference gait data acquisition means as similar gait data when it is determined that the wearer is not the legitimate person to be monitored;
A monitoring device comprising : an unauthorized wearing candidate output means for outputting the person concerned who corresponds to the similar walking data as an unauthorized wearing candidate. It is characterized by comprising an unauthorized wearing notification means for notifying that the wearing terminal is being illegally worn when the wearer validity determining means determines that the wearer is not the legitimate person to be monitored. The monitoring device according to claim 1 . Information transmitting means for transmitting information regarding the person to be watched over to a pre-registered authorized information receiving terminal when the wearer validity determining means determines that the wearer is the legitimate person to be watched over. The monitoring device according to claim 1 or 2, characterized in that it has the following. The monitoring device according to any one of claims 1 to 3 ,
and the wearing terminal worn by the person to be watched,
The attached terminal is
gait data acquisition means for acquiring the gait data;
position information acquisition means for acquiring the position information of the attached terminal;
A monitoring system characterized in that the walking data and the position information are linked to identification information of the wearing terminal and transmitted to the monitoring device. Obtaining the correspondence between the person to be watched and the worn terminal worn by the person to be watched,
Obtaining reference gait data that serves as a reference for gait data representing the gait characteristics of the person to be watched;
receiving the walking data transmitted from the wearing terminal;
comparing the received walking data with the reference walking data to determine whether the wearer of the wearing terminal is the legitimate person to be monitored;
receiving position information of the wearing terminal transmitted from the wearing terminal;
monitoring the location information;
obtaining the reference walking data of a person related to the monitoring target;
If it is determined that the wearer is not the legitimate person to be watched over, extracting the reference walking data similar to the walking data as similar walking data;
Outputting the person concerned corresponding to the similar walking data as a candidate for unauthorized wearing;
A monitoring method characterized by The monitoring method according to claim 5, further comprising: notifying that the wearing terminal is being illegally worn when it is determined that the wearer is not the legitimate person to be watched. obtaining a correspondence between a person to be watched and a wearable terminal worn by the person to be watched;
acquiring reference walking data that serves as a reference for walking data acquired by the wearing terminal when the person to be watched walks;
receiving the walking data transmitted from the wearing terminal;
comparing the received walking data with the reference walking data to determine whether the wearer of the wearing terminal is the legitimate person to be monitored;
receiving location information of the wearing terminal transmitted from the wearing terminal;
monitoring the location information;
acquiring the reference walking data of a person related to the monitoring target;
If it is determined that the wearer is not the legitimate person to be watched over, extracting the reference gait data similar to the gait data as similar gait data;
outputting the person concerned corresponding to the similar walking data as a candidate for unauthorized wearing;
A monitoring device control program for causing a monitoring device to execute processing having the following steps.

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