Operation state monitoring system, operation state monitoring method, and operation state monitoring program product

Abstract

The invention provides an operation state monitoring system, an operation state monitoring method, and an operation state monitoring program product. A motion state monitoring system according to the present disclosure monitors a motion state at a target part of a subject's body, and is provided with: a measurement instrument that measures the motion state; an operation state monitoring device for monitoring an operation state is provided with: a sensor for detecting the operation state; and a holding part for holding the sensor, the holding part including a pocket formed of a stretchable member, the pocket having an insertion opening extending in one direction and holding the sensor inserted from the insertion opening therein, the holding part being configured to hold the sensor when the holding part holding the sensor in the pocket is worn on a target site. The holding part is attached to the target part such that the bag extends in one direction.

Description

Technical Field

[0001] The present disclosure relates to an action state monitoring system, an action state monitoring method and an action state monitoring program. Background Art

[0002] Japanese Patent Application Laid-Open No. 2022-034450 discloses an operation state monitoring system that monitors the operation state of a target part of a subject's body.

[0003] The operating state monitoring system of Japanese Patent Application Laid-Open No. 2022-034450 includes a sensor worn on a target part, a wearing pad as a wearing mechanism of the sensor, and a belt-shaped belt. The sensor is connected to the belt worn on the target part via the wearing pad. Summary of the invention

[0004] In the case of a paralyzed patient, the therapist needs to move the arm of the patient and wear the sensor. At this time, it is difficult to wind the belt while adjusting the direction, which takes time. In addition, the sensor may fall off the wearing pad.

[0005] The present disclosure has been made to solve such a problem, and an object of the present disclosure is to provide an operation state monitoring system, an operation state monitoring method, and an operation state monitoring program that can reduce the time taken to wear a sensor and suppress the sensor from falling off.

[0006] An action state monitoring system involved in one embodiment of the present disclosure monitors the action state of an object part of a subject's body and comprises: a measuring instrument that measures the action state; and an action state monitoring device that monitors the action state, wherein the measuring instrument has: a sensor that detects the action state; and a holding part that holds the sensor, wherein the holding part includes a bag formed by a stretchable component, the bag has an insertion port extending in one direction and holds the sensor inserted from the insertion port inside, and when the holding part holding the sensor in the bag is worn on the object part, the holding part is worn on the object part in a manner that the bag is stretched in the one direction.

[0007] In the above-mentioned operation state monitoring system, the bag may include cloth as a material and a cover that covers the insertion port.

[0008] In the above-mentioned operation state monitoring system, the measuring instrument may further include a wearing portion to be worn on the target site, and the holding portion may be worn on the target site via the wearing portion extending in the one direction.

[0009] In the above-mentioned action state monitoring system, the holding portion and the wearing portion may have holes formed at portions corresponding to predetermined positions of the target part, and a portion of the wearing portion on the body side may be black.

[0010] In the above-mentioned operation state monitoring system, the following mode may be adopted, that is, the holding portion is attached to the wearing portion by a hook and loop fastener.

[0011] In the above-mentioned operation state monitoring system, the holding portion may include a transmissive portion that transmits light emitted by a light emitting portion provided on the sensor.

[0012] In the above-mentioned action status monitoring system, the following method can also be adopted, that is, the action status monitoring device comprises: an acquisition unit, which acquires the measurement information of the sensor worn on the object part; a wearing direction detection unit, which detects the wearing direction of the sensor; and a control processing unit, which establishes a correspondence between the measurement-related information associated with the measurement information and the wearing direction of the sensor and outputs it.

[0013] In the above-mentioned operation state monitoring system, the wearing direction of the sensor may be a wearing direction of the sensor relative to a direction predetermined according to the target part.

[0014] In the above-mentioned operation state monitoring system, the wearing direction of the sensor may be an axial wearing direction of the sensor relative to a wearing portion worn on the target site.

[0015] In the above-mentioned action status monitoring system, the following method can also be adopted, that is, the control processing unit establishes a correspondence between the measurement-related information after the event and the wearing direction after the event and outputs it according to the situation of detecting an event in which the wearing direction changes in the measurement of the sensor.

[0016] In the above-mentioned action state monitoring system, the control processing unit may perform arithmetic processing corresponding to the wearing direction on the measurement information or the measurement-related information, and output the arithmetic processing result by establishing a correspondence relationship with the wearing direction of the sensor. The control processing unit may output the measurement-related information by using an algorithm that performs machine learning using the wearing direction and the measurement-related information as learning data.

[0017] An action state monitoring method according to one embodiment of the present disclosure monitors an action state of an object part of a body of a subject using an action state monitoring system, wherein the action state monitoring system comprises: a measuring instrument that measures the action state; and an action state monitoring device that monitors the action state, wherein the measuring instrument comprises: a sensor that detects the action state; and a holding portion that holds the sensor, wherein the holding portion comprises a bag formed by a stretchable member, the bag having an insertion port extending in one direction and holding the sensor inserted from the insertion port therein, and when the holding portion holding the sensor in the bag is worn on the object part, the holding portion is worn on the object part in a manner that the bag is stretched in the one direction, and the action state monitoring method comprises: a step of acquiring measurement information of the sensor worn on the object part; a step of detecting a wearing direction of the sensor; and a step of establishing a correspondence between measurement-related information associated with the measurement information and the wearing direction of the sensor and outputting the correspondence.

[0018] An action state monitoring program according to one embodiment of the present disclosure causes a computer included in an action state monitoring system to execute a process of monitoring an action state of a target part of a body of a subject, the action state monitoring system comprising: a measuring instrument that measures the action state; and an action state monitoring device that monitors the action state, the measuring instrument having: a sensor that detects the action state; and a holding portion that holds the sensor, the holding portion including a bag formed of an elastic member, the bag having an insertion port extending in one direction and holding the sensor inserted from the insertion port therein, and when the holding portion holding the sensor in the bag is worn on the target part, the holding portion is worn on the target part in a manner that the bag is stretched in the one direction, and the action state monitoring program causes the computer to execute the following steps, namely: a step of acquiring measurement information of the sensor worn on the target part; a step of detecting a wearing direction of the sensor; and a step of establishing a correspondence between measurement-related information associated with the measurement information and the wearing direction of the sensor and outputting the measurement-related information.

[0019] According to the present disclosure, an operation state monitoring system, an operation state monitoring method, and an operation state monitoring program that can reduce the time taken to wear a sensor and suppress the sensor from falling off can be provided.

[0020] The above and other objects, features and advantages of the present disclosure will be more fully understood from the detailed description and accompanying drawings given below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The following is a diagram illustrating a configuration of an operation state monitoring system according to the first embodiment.

[0022] Figure 2 This is an explanatory diagram illustrating a mechanism for wearing a sensor of a measuring instrument in the operation state monitoring system according to the first embodiment.

[0023] Figure 3 This is an explanatory diagram illustrating a mechanism for wearing a sensor of a measuring instrument in the operation state monitoring system according to the first embodiment.

[0024] Figure 4 This is an explanatory diagram illustrating a mechanism for wearing a sensor of a measuring instrument in the operation state monitoring system according to the first embodiment.

[0025] Figure 5 This is an explanatory diagram illustrating a mechanism for wearing a sensor of a measuring instrument in the operation state monitoring system according to the first embodiment.

[0026] Figure 6 This is an explanatory diagram illustrating a mechanism for wearing a sensor of a measuring instrument in the operation state monitoring system according to the first embodiment.

[0027] Figure 7 This is an explanatory diagram illustrating a mechanism for wearing a sensor of a measuring instrument in the operation state monitoring system according to the first embodiment.

[0028] Figure 8 This is a diagram illustrating the wearing direction of the sensor in the measuring instrument in the operation state monitoring system according to the first embodiment.

[0029] Fig. 9 This is a diagram for explaining an initial reference direction in the operation state monitoring system according to the first embodiment.

[0030] Fig.10 This is a block diagram illustrating a measuring instrument and an operation state monitoring device in the operation state monitoring system according to the first embodiment.

[0031] Fig.11 The flowchart exemplifies the operation state monitoring method using the operation state monitoring system according to the first embodiment.

[0032] Fig.12 This is a diagram illustrating a display screen of a display unit before measurement starts in the operation state monitoring system according to the first embodiment.

[0033] Fig.13 This is a diagram illustrating an example of a display screen of a display unit when measurement is completed in the operation state monitoring system according to the first embodiment.

[0034] Fig.14 This is a diagram illustrating the data structure of a calculation processing table used by a control processing unit in the operation state monitoring system according to the second embodiment.

[0035] Fig.15 The flowchart exemplifies the operation state monitoring method using the operation state monitoring system according to the third embodiment.

[0036] Fig.16 This is a schematic configuration diagram illustrating an operation status monitoring device including a computer according to the above-mentioned embodiment. DETAILED DESCRIPTION

[0037] Hereinafter, the specific structure of the present embodiment will be described with reference to the accompanying drawings. The following description is a description of the preferred embodiments of the present disclosure, and the scope of the present disclosure is not limited to the following embodiments. In addition, not all of the structures described in the present embodiment are necessary technical means for solving the problem. For the purpose of clear description, the following description and drawings are appropriately omitted and simplified. In each of the drawings, the same symbols are marked for the same elements, and repeated descriptions are omitted as needed.

[0038] <Implementation method 1>

[0039] First, the operation state monitoring system according to the first embodiment will be described. Figure 1 The structural diagram of the motion state monitoring system 1 involved in the embodiment 1 is illustrated. The motion state monitoring system 1 monitors the motion state of the body part of the subject P. In addition, based on the monitoring result of the motion of the subject P, the motion state monitoring system 1 implements support to make the motion of the subject P close to the desired motion. Specifically, the motion state monitoring system 1 measures the motor function of the subject P including the rehabilitation trainees and the elderly. Moreover, the motion state monitoring system 1 assists the training of the subject P by analyzing, evaluating and managing the measurement results. The subject P wears the sensor 200 at a predetermined part of the body and performs a motion test. For example, the motion test is a motion function test that measures the motion state of the part when the subject P performs a specified motion, and measures the motor function. The motion state monitoring system 1 includes, for example, a training assistance system.

[0040] Hereinafter, the designated action will be referred to as the monitoring object action. The monitoring object action is specified in correspondence with a body part. For example, the monitoring object action includes shoulder flexion and extension, shoulder adduction and abduction, shoulder internal and external rotation, neck flexion and extension, neck rotation, elbow flexion and extension, hip joint internal and external rotation, forearm pronation and supination, or thoracolumbar lateral flexion, etc. In addition, the monitoring object action can also be specified by left and right distinction when the part is either left or right. The part of the monitoring object is referred to as the object part. As the object part, one or more object parts can be correspondingly related to one monitoring object action, and the same object part can be correspondingly related to different monitoring object actions.

[0041] like Figure 1 As shown, the motion state monitoring system 1 includes a measuring instrument 2 and a motion state monitoring device 3. The motion state monitoring device 3 may also be referred to as the motion state monitoring system 1. The motion state monitoring device 3 is a device for monitoring the motion state of a target part of the body of the subject P. In addition, the measuring instruments 2-1, 2-2, ..., etc. shown in the figure are collectively referred to as measuring instruments 2.

[0042] The measuring instrument 2 measures the motion state of the target part of the body of the subject P. Specifically, the measuring instrument 2 is a measuring device that measures the moving direction and amount of movement of the target part. The measuring instrument 2 has a sensor 200 that detects the motion state. In the present embodiment, the measuring instrument 2 may have an acceleration sensor and an angular velocity sensor. The measuring instrument 2 measures its own acceleration and angular velocity. Specifically, the measuring instrument 2 may also include a three-axis acceleration sensor and a three-axis angular velocity sensor. In this case, the measuring instrument 2 measures the amount of movement in the three-axis directions of the XYZ axis and the rotation angle around the three axes. The measuring axes are not limited to three axes, but may be less than two axes. In addition, the measuring instrument 2 may also have a geomagnetic sensor that detects geomagnetism and measures the direction in which it is facing. In addition, the illustrated sensors 200-1, 200-2, etc. are collectively referred to as sensors 200.

[0043] Each measuring instrument 2 is connected to the action state monitoring device 3 in a state capable of communicating. In the present embodiment, the communication between each measuring instrument 2 and the action state monitoring device 3 is a short-range wireless communication such as Bluetooth (registered trademark), NFC (NearField Communication) and ZigBee. However, the communication is not limited thereto, and may also be wireless communication via a network such as a wireless LAN (Local Area Network). In addition, the communication may also be wired communication via the Internet, LAN, WAN (Wide Area Network) or a network formed in a manner including a combination of these.

[0044] The measuring instrument 2 has a wearing mechanism (such as a holding part and a wearing part, etc.) for the sensor 200 in addition to the sensor 200. Moreover, the sensor 200 is worn on the wearing position 20 corresponding to the target part of the body of the subject P via the wearing mechanism. In addition, in order to correspond to the measurement of various monitoring object actions, a plurality of sensors 200 are respectively associated with the respective target parts of the body of the subject P, and can be worn on the target parts with which the association is established. In the accompanying drawings, the wearable target parts are shown by wearing positions 20-1, 20-2, ..., 20-11. Each wearing position 20-1, 20-2, ..., 20-11 is associated with each sensor 200-1, 200-2, ..., 200-11. For example, the wearing positions 20-1, 20-2, ..., 20-11 are respectively called the right upper arm, the right forearm, the head, the chest (trunk), the waist (pelvis), the left upper arm, the left forearm, the right thigh, the right calf, the left thigh, and the left calf. The association relationship between the wearing position 20 and the sensor 200 is established by pairing the sensor 200 with the motion state monitoring device 3 in advance and establishing a correspondence between the identification information (ID) of the wearing position 20 and the ID of the sensor 200 on the application of the motion state monitoring device 3. In addition, the wearing positions 20-1, 20-2, ..., etc. are collectively referred to as the wearing position 20.

[0045] In this embodiment, the wearing position 20 used in the motion test is selected from the wearing positions 20-1 to 20-11 according to the monitored object action selected by the user. In addition, the user is a user who uses the action status monitoring device 3, such as the subject P himself or a staff member who implements the motion test. Then, the subject P or the staff member wears the sensor 200 (in this figure, sensors 200-1, 200-2, 200-6, 20-7) that has established an association relationship with the selected wearing position 20 (in this figure, wearing positions 20-1, 20-2, 20-6, 20-7) of the subject P's body, and starts the motion test.

[0046] In addition, although a plurality of sensors 200 are prepared that are respectively associated with a plurality of wearing positions 20, the number of wearing positions 20 to be prepared may be one. In addition, the number of sensors 200 to be prepared may also be one.

[0047] The sensor 200 starts measuring according to the start of the motion test and sends the measurement information to the motion state monitoring device 3. The measurement information may include acceleration information, angular velocity information or quaternion information. In addition, the measurement information may include the components of each measurement axis direction (X-axis direction, Y-axis direction, Z-axis direction) mentioned above. Moreover, the sensor 200 stops measuring according to the end of the motion test.

[0048] The motion state monitoring device 3 monitors the motion state of the target part of the body of the subject P during the motion test. In addition, the motion state monitoring device 3 analyzes, evaluates and manages information related to the motion state. The motion state monitoring device 3 includes, for example, a computer device. Specifically, the motion state monitoring device 3 may include a personal computer, a notebook computer, a mobile phone, a smart phone, a tablet terminal or other communication terminal devices capable of inputting and outputting data. In addition, the motion state monitoring device 3 may also include a server computer. In this embodiment, the motion state monitoring device 3 is set as a tablet terminal for illustration.

[0049] The motion state monitoring device 3 is used by the user during and before and after the exercise test. The motion state monitoring device 3 accepts the selection of the monitored motion from the user and notifies the user of the wearing position 20 corresponding to the target part. In addition, the motion state monitoring device 3 sends a measurement start or measurement stop request to the sensor 200 according to the start or end of the exercise test.

[0050] In addition, the action state monitoring device 3 outputs measurement-related information as a measurement result according to the measurement information received from the sensor 200. Here, the measurement-related information represents information related to the measurement information, and may include the measurement information itself. In addition, the measurement-related information may also be information that has undergone various transformations on the measurement information. Moreover, the measurement-related information may also be information that has undergone calculations based on the measurement information. The measurement-related information may also include information related to the above-mentioned action state. In addition, the information related to the above-mentioned action state may also include the measurement-related information. In other words, the information related to the action state is information based on the measurement-related information, and may also include the measurement-related information itself.

[0051] The action state monitoring device 3 can also be connected to an external server (not shown) via a network in a communicative manner. The external server can be a computer device or a cloud server on the Internet. In this case, the action state monitoring device 3 can send the measurement-related information of the subject P or information related to the action state stored by itself to the external server.

[0052] Here, use Figure 2 to Figure 7 , the wearing mechanism of the measuring instrument 2 is described. Figure 2 to Figure 7 This is an explanatory diagram illustrating a wearing mechanism of the sensor 200 of the measuring instrument 2 in the operation state monitoring system 1 according to the first embodiment. Figure 3 Shows Figure 2 Stereoscopic diagram.

[0053] like Figure 2 as well as Figure 3 As shown, the measuring instrument 2 has a holding portion 210 as a wearing mechanism (wearing tool). Therefore, the measuring instrument 2 has a sensor 200 and a holding portion 210. Here, in order to explain the wearing mechanism of the measuring instrument 2, an αβγ orthogonal coordinate axis system is introduced. The extending direction of the holding portion 210 is set as the α-axis direction, and the two directions orthogonal to the α-axis are set as the β-axis direction and the γ-axis direction. In addition, the αβγ orthogonal coordinate axis system may correspond to the XYZ orthogonal coordinate axis system as the measuring axis, or it may not correspond.

[0054] The holding portion 210 holds the sensor 200. The holding portion 210 is also referred to as a wearing pad. The holding portion 210 may also include a bag 211 formed of a stretchable member. The bag 211 may also include cloth as a material. In addition to the bag 211, the holding portion 210 may also include cloth as a material. In addition, as a stretchable member, not limited to cloth, the bag 211 may also include a stretchable resin member such as rubber and plastic.

[0055] The bag 211 has an insertion port 212 extending in one direction. The one direction is, for example, the α direction. The bag 211 holds the sensor 200 inserted from the insertion port 212 inside. The bag 211 is, for example, a quadrilateral shape having sides extending in the α-axis direction and sides extending in the β-axis direction. In addition, as long as the bag 211 can hold the sensor 200 inside, it is not limited to the quadrilateral shape, and may also be an elliptical shape, etc. In addition, the bag 211 may include a cutout such as a hole in a part, and may also include a part different from other parts. The insertion port 212 is, for example, formed on the side of the bag 211 on the +β-axis direction side. And the sensor 200 is inserted from the insertion port 212 to the -β-axis direction. In addition, the insertion port 212 only needs to extend in one direction, and is not limited to the side of the bag 211 on the +β-axis direction side, and may also be formed in the central part of the bag 211.

[0056] When the holding part 210 holding the sensor 200 in the bag 211 is worn on the target part of the body of the subject P, the holding part 210 is worn on the target part in such a manner that the bag 211 is stretched in one direction. When the bag 211 is stretched in one direction, for example, in the α-axis direction, the insertion port 212 is also stretched in the α-axis direction. Thus, it is possible to suppress the insertion port 212 from opening in the β-axis direction and the γ-axis direction, and it is possible to suppress the sensor 200 from falling out of the bag 211.

[0057] For example, the surface of the -γ axis direction side of the holding portion 210 may also have a joint portion including an adhesive material or the like. The holding portion 210 is worn on the target part through the joint portion. The joint portion may also include a Velcro. The holding portion 210 may also be worn by a Velcro. In addition, the holding portion 210 may also be worn on the target part by a joint member such as a hook or a buckle.

[0058] like Figure 4 As shown, the bag 211 may also include a cover 213 that covers the insertion port 212. That is, the bag 211 may also include a storage portion 214 and a cover 213. The storage portion 214 is a portion for storing the sensor 200. The cover 213 is a rectangular shape extending in the α-axis direction along the insertion port 212. The portion of the cover 213 on the +β-axis direction side is connected to the portion of the bag 211 on the +β-axis direction side. The portion of the cover 213 on the -β-axis direction side is open. The cover 213 covers the insertion port 212.

[0059] The storage portion 214 and the cover 213 can be formed of elastic components. Therefore, when the holding portion 210 is worn on the target part in a manner that the bag 211 is stretched in one direction, the cover 213 is closely attached to the insertion port 212. This can prevent the insertion port 212 from opening in the β-axis direction and the γ-axis direction, and prevent the sensor 200 from falling out of the bag 211.

[0060] like Figure 5As shown, the measuring instrument 2 may also include a wearing portion 220. Therefore, the measuring instrument 2 includes a sensor 200, a holding portion 210, and a wearing portion 220. The wearing portion 220 is a component that is worn on the target part. The wearing portion 220 is sometimes called a belt, for example. The wearing portion 220 is, for example, in the shape of a belt extending in the α-axis direction. The wearing portion 220 may also be formed by a component having elasticity. Therefore, the wearing portion 220 may also include a component that stretches in one direction. The wearing portion 220 mounts the holding portion 210 on a portion of the wearing portion 220. For example, the holding portion 210 is mounted on the surface of the wearing portion 220 on the γ-axis direction side. Thus, the holding portion 210 is worn on the target part via the wearing portion 220 that stretches in one direction. The holding portion 210 may also be mounted on the wearing portion 220 by the aforementioned joint portion. The holding portion 210 may also be mounted on the wearing portion 220, for example, by a Velcro tape. In addition, the holding part 210 can also be attached to the wearing part 220 by a fastener such as a hook or a buckle. The wearing part 220 is stretched in one direction and worn on the target part. Thus, the insertion port 212 of the holding part 210 can be prevented from opening.

[0061] like Figure 6 As shown, the holding portion 210 and the wearing portion 220 may also form a hole 215 and a hole 225 in a portion corresponding to a predetermined position of the target part. In addition, when the wearing portion 220 is not provided, the holding portion 210 may also form a hole 215 in a portion corresponding to a predetermined position of the target part. The hole 215 and the hole 225 may be circular or rectangular. The hole 215 is set to a shape that prevents the sensor 200 from falling off the holding portion 210. For example, the diameter of the hole 215 is smaller than the length of the sensor 200. The hole 225 is set to a shape that prevents the sensor 200 and the holding portion 210 from falling off the wearing portion 220. For example, the diameter of the hole 225 is smaller than the length of the sensor 200 and the holding portion 210. The hole 215 and the hole 225 may have the same shape or different shapes.

[0062] By forming the holes 215 and 225, the sensor 200 can contact the target part. Thus, the sensor 200 can perform contact-based detection. In addition, when the sensor 200 performs detection based on inspection light such as infrared rays, since objects that block the light can be excluded, the accuracy of the detection can be improved.

[0063] Preferably, the portions of the retaining portion 210 and the wearing portion 220 on the body side of the subject P are black. In addition, when the wearing portion 220 is provided, only the portion of the wearing portion 220 on the body side of the subject P may be black. In the case where the sensor 200 performs detection based on inspection light such as infrared rays, the sensor 200 detects reflected light reflected from the target part of the subject P. Therefore, preferably, the sensor 200 detects reflected light only from the target part. Therefore, when the portions of the wearing portion 220 etc. on the body side of the subject P are all black except the hole 225, it is possible to suppress the reflected light from the portion other than the target part from being detected by the sensor 200.

[0064] like Figure 7 As shown, the sensor 200 may also include a light emitting unit 216. The light emitting unit 216 may include, for example, a light emitting component such as an LED (Light Emitting Diode). The light emitting unit 216 may, for example, indicate whether the power supply of the sensor 200 is turned on or off, or indicate the remaining amount of the battery. In addition, the light emitting unit 216 may also indicate that the detection is in progress, or may indicate that the detection is finished. The light emitting unit 216 may also indicate a predetermined state other than the above.

[0065] The holding portion 210 may also include a transparent portion 217. The transparent portion 217 may include, for example, a portion that is thinner than other portions of the holding portion 210. In addition, the transparent portion 217 may include a transparent member. The transparent portion 217 may also be provided at a hole or cutout in the bag 211. In addition, the transparent portion 217 may not be provided only at a portion of the bag 211, but may be provided across the entire bag 211. In this way, the holding portion 210 may also include a transparent portion 217 that transmits light emitted by the light emitting portion 216 provided on the sensor 200.

[0066] Since the holding unit 210 includes the transparent portion 217 , the information displayed by the sensor 200 can be notified to the subject P and users such as staff.

[0067] The sensor 200 is worn on the target part via the holding part 210 or via the holding part 210 and the wearing part 220. Thus, the sensor 200 is worn at the wearing position 20 of the target part.

[0068] Here, the wearing direction of the sensor 200 is described. Figure 8 FIG. 2 is a diagram illustrating the wearing direction of the sensor 200 in the measuring instrument 2 in the operation state monitoring system 1 according to the first embodiment. Figure 8 As shown in FIG. 1 , the wearing direction of the sensor 200 is the wearing direction of the sensor 200 relative to the reference direction D. Figure 8In the diagram, the reference direction D is defined as the axial direction of the wearing portion 220 (e.g., a band) worn on the target part (e.g., the right upper arm). Moreover, the wearing direction indicates the relative direction of the sensor 200 with respect to the reference direction D as the axial direction. Specifically, the wearing direction is specified based on the angle (referred to as the wearing angle) θ1 formed by the reference direction D and the measuring axis A of the sensor 200. The measuring axis A can be specified in advance, for example, it can be any one of the α-axis, β-axis, and γ-axis of the sensor coordinate system. For example, Figure 8 As shown, when the wearing angle θ1 is 0°, the sensor 200 is worn so that the measurement axis A is parallel to the reference direction D. When the wearing angle θ1 is 90°, the sensor 200 is worn so that the measurement axis A is orthogonal to the reference direction D. In addition, the wearing angle θ1 is not limited to 0° and 90°. In this way, the wearing direction of the sensor 200 may be a wearing direction of the sensor 200 relative to a direction predetermined according to the target part.

[0069] The reference direction D is a direction that does not change relative to the wearing direction of the sensor 200 even if the subject part is moved during the monitoring object movement. In other words, even if the subject part is moved during the monitoring object movement, the angle (e.g. Figure 8 In other words, the reference direction D is a direction that changes in conjunction with the absolute direction of the sensor 200 during the movement of the monitored object. Here, the "absolute direction" refers to a direction based on the gravity direction or the horizontal direction. For example, it can be a direction based on the coordinate system (X) relative to the subject P. S , Y S , Z S ) defines the direction. S The Y axis is a horizontal axis in the front-back direction relative to the subject P, S The Z axis is a horizontal axis in the left-right direction relative to the subject P, S The axis is a vertical axis in the direction of gravity. Therefore, the reference direction D is a direction that changes in conjunction with the sensor 200 with respect to the absolute direction during the movement of the monitored object.

[0070] Here, in the present embodiment, the reference direction D can be defined according to the target part. For example, when the wearing portion 220 (e.g., a belt) is worn on the target part, there is a preferred wearing direction fixed to the target part. For example, when the target part is an arm, from the viewpoint of easy wearing or easy movement, it is preferred that the wearing portion 220 is worn in a manner that its reference direction D is roughly parallel to the axial direction of the arm (that is, the extension direction of the arm). On the contrary, it is difficult to wear in a manner that the reference direction D is roughly orthogonal to the axial direction of the arm. Therefore, the axial direction of the wearing portion 220 as the reference direction D can be predefined according to the target part. In this way, the wearing direction of the sensor 200 can also be the wearing direction of the sensor 200 relative to the axial direction of the wearing portion 220 worn on the target part.

[0071] In addition, although Figure 8 In the embodiment, the sensor 200 is worn on the target part using a wearing part 220 such as a belt, but the wearing part 220 may be omitted. In this case, the sensor 200 may be worn on clothes or skin via a holding part 210. In this case, the reference direction D is also a direction predefined according to the target part, such as the axial direction of the target part.

[0072] In the present embodiment, the wearing mechanism (holding portion 210 and wearing portion 220, etc.) of the measuring instrument 2 may also include a changing mechanism for changing the wearing direction of the sensor 200. The changing mechanism may be any mechanism as long as it is a mechanism that can change the wearing direction of the sensor 200. For example, in the case where the holding portion 210 has a joint that can be used repeatedly, the wearing direction can be freely changed. In addition, in the case where the sensor 200 is worn on the target part using a belt or a connector between the belt and the clothes, after the sensor 200 is worn in a manner roughly consistent with the reference direction D, the wearing direction thereof can be changed using a knob that is linked to the connector. In addition, in the case where the sensor 200 is worn using a connector having a shape that can clamp the sensor 200 in multiple wearing directions, the sensor 200 can be worn in one of the wearing directions selected therefrom.

[0073] In addition, in the present embodiment, the reference direction D can be specifically defined in advance according to the target part at the beginning, that is, in a stationary state. Fig. 9 FIG. 2 is a diagram for explaining the initial reference direction D in the operation state monitoring system 1 according to the first embodiment. Fig. 9 As shown in FIG. 1 , the absolute direction of the initial reference direction D is specified for each target part. In the figure, the absolute direction of the initial reference direction D is determined by using the Z SThe angle θ0 can be defined based on the average skeleton of a human being. In this embodiment, the initial reference direction D of the upper arm is relative to the Z axis. S The axis is directed outward, for example, the angle θ0 of the right upper arm can be set to 5°.

[0074] In addition, the initial reference direction D of the forearm is relative to the Z direction of the upper arm. S The angle θ0 of the right forearm may be set to 10°. The angle θ0 of each part may be set for each subject P based on attribute information such as the subject P's age, gender, height or weight.

[0075] Thus, even when the initial reference direction D changes depending on the target part, the initial reference direction D can be specifically defined. Therefore, at least the initial wearing direction can be converted into an absolute direction that is a unique index with respect to the subject P.

[0076] The sensor 200 involved in this embodiment is configured to be able to change the wearing direction. Therefore, the user can freely set the wearing direction of the sensor 200, thereby improving convenience. In addition, by setting a preferred direction based on the sensor 200, the accuracy of the measurement result can be improved.

[0077] Hereinafter, the wearing direction relative to the reference direction D is simply referred to as “wearing direction”.

[0078] Fig.10 The block diagram is a diagram illustrating a measuring instrument 2 and an action state monitoring device 3 in the action state monitoring system 1 involved in the first embodiment. As described above, the action state monitoring system 1 includes a measuring instrument 2 and an action state monitoring device 3. The measuring instrument 2 has a sensor 200. In the figure, the sensor 200 is a sensor 200 that has established an association relationship with a wearing position 20 selected based on the action of the monitored object among the prepared sensors 200-1 to 200-11. The sensor 200 is set to be paired and calibrated with the action state monitoring device 3 in advance. In addition, the number of sensors 200 is not limited to one, and it can also be two or more.

[0079] The operation state monitoring device 3 includes a wearing direction detection unit 30, an acquisition unit 31, a control processing unit 32, a display unit 33, and a storage unit 34. The wearing direction detection unit 30, the acquisition unit 31, the control processing unit 32, the display unit 33, and the storage unit 34 have functions as a wearing direction detection unit, an acquisition unit, a control processing unit, a display unit, and a storage unit.

[0080] The wearing direction detection unit 30 detects the wearing direction of the sensor 200. As described above, the wearing direction of the sensor 200 can be either the wearing direction of the sensor 200 relative to a direction predetermined according to the target part, or the wearing direction of the sensor 200 relative to the axial direction of the wearing part 220 worn on the target part.

[0081] Specifically, the wearing direction detection unit 30 may detect the wearing direction of the sensor 200 based on the output of the sensor 200 when the sensor 200 is worn. In this case, the wearing direction detection unit 30 detects the wearing direction of the sensor 200 based on the Z value obtained from the sensor 200 during calibration. S The information of the Z axis and the angle information of the sensor 200 from the static state during calibration to the time of wearing are used to determine the angle of the sensor 200 relative to the Z axis. S By adopting this method, the wearing direction detection unit 30 can detect the wearing direction of the sensor 200.

[0082] In addition, for example, the wearing direction detection unit 30 may also have a wearing direction detection sensor and a wearing direction detection mechanism that are separately arranged near each sensor 200. Moreover, the wearing direction detection mechanism may also be configured so that a current flows according to the angle between the measuring axis A of the sensor 200 and the reference direction D. The wearing direction detection sensor detects the current. Thus, the wearing direction is detected based on the magnitude of the detected current. In addition, when a wearing portion 220 such as a belt is used when wearing the sensor 200, the wearing direction detection sensor and the wearing direction detection mechanism may also be arranged on the wearing portion 220. In addition, the wearing direction detection sensor and the wearing direction detection mechanism may also be included in the measuring instrument 2. The wearing direction detection unit 30 may also obtain information on the wearing direction based on the output from the wearing direction detection sensor.

[0083] In addition, for example, the wearing direction detection unit 30 may detect the wearing direction of the sensor 200 based on the captured image of the worn sensor 200. For example, the wearing direction detection unit 30 may include a wearing direction detection camera disposed in front of, behind, or above the subject P. Furthermore, the wearing direction detection unit 30 may detect the wearing direction of the sensor 200 by capturing the sensor 200 and performing image processing such as pattern matching on the captured image. In addition, the wearing direction detection camera may be included in the measuring instrument 2, and the wearing direction detection unit 30 may obtain an image from the wearing direction detection camera and obtain the information on the wearing direction based on the image.

[0084] Furthermore, when the wearing direction of the sensor 200 can be adjusted by a knob or the like linked to the connector, the wearing direction detection unit 30 may detect the wearing direction based on the movement amount of the knob.

[0085] In this embodiment, the wearing direction detection unit 30 detects the wearing direction of the sensor 200 in the initial state, that is, in the static state immediately before measurement, and supplies the control processing unit 32 with information on the detected wearing direction.

[0086] The acquisition unit 31 acquires the measurement information of the sensor 200 worn on the target part. In the present embodiment, the acquisition unit 31 receives and acquires the measurement information from the sensor 200. However, the present invention is not limited thereto, and the acquisition unit 31 may also acquire the measurement information indirectly from an external computer (not shown) that stores the measurement information. The acquisition unit 31 supplies the acquired measurement information to the control processing unit 32.

[0087] The control processing unit 32 controls the sensor 200 and each component of the operation state monitoring device 3. In addition, the control processing unit 32 performs a tagging process to establish a correspondence between the wearing direction of the sensor 200 and the measurement-related information in the wearing direction. In addition, the control processing unit 32 outputs the measurement-related information after the tagging process that establishes a correspondence between the wearing direction of the sensor 200 and the sensor 200 to an output unit such as the display unit 33. In addition, the control processing unit 32 may store the measurement-related information after the tagging process in the storage unit 34.

[0088] In addition, the control processing unit 32 may also output the measurement-related information by using an algorithm that performs machine learning using the wearing direction and the measurement-related information as learning data. Specifically, the control processing unit 32 may perform machine learning using the algorithm using, for example, the wearing direction and the measurement-related information associated with the wearing direction as learning data in advance. Furthermore, the control processing unit 32 may also output measurement-related information different from the input measurement-related information by using the algorithm and based on the input wearing direction or the input measurement-related information.

[0089] The display unit 33 is an example of an output unit, and is a display that displays the measurement-related information supplied from the control processing unit 32. In the present embodiment, the display unit 33 may also be a touch panel configured together with an input unit (not shown). In addition, the output unit may include a voice output unit that outputs the measurement-related information in the form of voice, a data output unit that outputs in a predetermined data format, a transmission unit that transmits the measurement-related information to an external server, etc., instead of the display unit 33 or in addition to the display unit 33.

[0090] The storage unit 34 includes a storage medium for storing information required for various processes of the operation state monitoring device 3. The storage unit 34 may store the measurement-related information after the tagging process, but this is not essential when the output unit includes the transmission unit.

[0091] Next, the operation state monitoring method according to the first embodiment will be described. Fig.11 The flowchart exemplifies the operation state monitoring method using the operation state monitoring system 1 according to the first embodiment. Fig.12 This is a diagram illustrating an example of a display screen of the display unit 33 before measurement starts in the operation state monitoring system 1 according to the first embodiment. Fig.13 This is a diagram illustrating an example of a display screen of the display unit 33 when measurement is completed in the operation state monitoring system 1 according to the first embodiment.

[0092] After the user selects a monitoring target action, determines the wearing position 20 based on the monitoring target action, and wears the sensor 200 at the wearing position 20 corresponding to the monitoring target action, the monitoring starts. Fig.11 In the following example, the control processing unit 32 is set to process the measurement information as measurement-related information.

[0093] First, as shown in step S11 , the wearing direction detection unit 30 in the operation state monitoring device 3 detects the wearing direction of the sensor 200 based on the fact that the subject P and the sensor 200 are in a stationary state.

[0094] Next, as shown in step S12, the control processing unit 32 initializes the output value of the sensor 200. Specifically, the control processing unit 32 corrects the output value of the sensor 200 in the static state immediately before the measurement to 0. Sometimes, even if the sensor 200 is calibrated, it is impossible to make the output error such as drift error 0, and the error increases with the passage of time. Therefore, the output error from the start to the end of the measurement can be minimized by this step. However, when the output error is slight, this step can also be omitted.

[0095] Next, as shown in step S13, the control processing unit 32 determines whether to start the measurement by the sensor 200. If the control processing unit 32 starts the measurement by the sensor 200 in step S13 (in the case of yes), the process proceeds to step S14. On the other hand, if the control processing unit 32 does not start the measurement by the sensor 200 in step S13 (in the case of no), the process shown in step S13 is repeatedly executed.

[0096] Here, if Fig.12, there is shown a display image 300 ( 1 ) before the start of measurement displayed by the display unit 33 . The display image 300 ( 1 ) includes a plurality of display areas 302 , 304 , 305 , 306 , 309 , and 310 .

[0097] Icon images representing a plurality of wearing positions 20 that are candidates for wearing the sensor 200 are displayed in the display area 302. The wearing position 20 (positions shown as "1", "2", "6", and "7" in the figure) corresponding to the selected measurement action may also be highlighted in the display area 302. Thus, the user can easily visually confirm the wearing position 20, and thus can smoothly perform the exercise test.

[0098] Here, when the user clicks the icon image representing the wearing position 20 in the display area 302, an image (not shown) representing the wearing direction of the sensor 200 associated with the wearing position 20 is displayed. Therefore, the user can easily understand the wearing direction of each sensor 200 through the image.

[0099] The rotation angles of the sensors 200-1, 200-2, ..., 200-11 associated with the wearing positions 20-1, 20-2, ..., 20-11 are two-dimensionally displayed in the display area 304. The rotation angles displayed here dynamically change according to the movement of the sensor 200 linked to the movement of the subject P. Therefore, the user can identify the sensor 200 whose power is turned off or the sensor 200 that is not operating normally through the display area 304 before starting the measurement.

[0100] Alternatively, the wearing directions of the sensors 200 - 1 , 200 - 2 , ... 200 - 11 associated with the wearing positions 20 - 1 , 20 - 2 , ... 20 - 11 may be visually displayed on the display area 304 . Therefore, the user can intuitively understand the wearing directions of the sensors 200 via the display area 304 .

[0101] In the case where a plurality of sensors 200 are used in the exercise test, input operation buttons for collectively calibrating the plurality of sensors 200 are displayed in the display area 305 . This allows the user to easily request calibration of each of the plurality of sensors 200 via the display area 305 .

[0102] An input operation button for starting an exercise test, that is, starting measurement by the sensor 200 , is displayed in the display area 306 . This allows the user to easily request the start of measurement by the sensor 200 via the display area 306 .

[0103] The display area 309 displays the measurement-related information of each sensor 200 used. Before the measurement starts, the measurement-related information is not displayed. The display area 310 displays the motion state index of the target part of each monitored target action being performed. Before the measurement starts, the motion state index of the target part is not displayed.

[0104] Then, if Fig.11 As shown in step S14 shown in FIG. 1 , the control processing unit 32 acquires the measurement information from the sensor 200 via the acquisition unit 31 .

[0105] Next, as shown in step S15, the control processing unit 32 uses the measurement information as measurement-related information and adds information on the wearing direction of the sensor 200 as a tag to the measurement-related information. In this way, the wearing direction and the measurement-related information can be associated with each other.

[0106] Next, as shown in step S16 , the control processing unit 32 supplies the measurement-related information after the tagging process to the display unit 33 for display.

[0107] Next, as shown in step S17, the control processing unit 32 determines whether the measurement performed by the sensor 200 is completed. In step S17, if the control processing unit 32 has completed the measurement (in the case of yes), the process is completed. On the other hand, if the control processing unit 32 has not completed the measurement (in the case of no) in step S17, the process returns to step S14.

[0108] In addition, in the above example, the operation state monitoring device 3 waits for the processing of step S12, and judges whether the measurement implemented by the sensor 200 has started in step S13. However, instead, the operation state monitoring device 3 may perform the processing of step S12 after the processing of step S11, according to the situation that the measurement implemented by the sensor 200 has started (yes in step S13). In this case, the control processing unit 32 may also advance the processing to step S14 after executing the processing of step S12 or in parallel with the execution of the processing. In addition, the operation state monitoring device 3 may also repeatedly perform the processing shown in step S13 when the measurement implemented by the sensor 200 has not started (no in step S13).

[0109] In addition, although in the above example, the operation state monitoring device 3 uses the measurement information as the measurement-related information, it is also possible to use the measurement information that has been subjected to various conversion processes instead of or in addition to the measurement information. The conversion process may include a conversion process from quaternion information to rotation angles around the X-axis, Y-axis, and Z-axis. S The rotation angle of the axis is the roll angle, around the Y S The rotation angle of the axis represents the pitch angle, around the ZS The rotation angle of the axis represents the yaw angle. The control processing unit 32 uses the quaternion information to calculate the rotation angles around the X-axis, Y-axis and Z-axis of the sensor coordinate system, and converts them into yaw angle, roll angle and pitch angle. In addition, the conversion process may include normalization, standardization or synthesis of the diagram. In this case, the control processing unit 32 may also replace step S15, or on the basis of step S15, attach the information of the wearing direction of the sensor 200 as a label to the measurement information after the conversion process, so that the wearing direction and the measurement information after the conversion process establish a corresponding relationship.

[0110] exist Fig.13 , a display image 300(2) displayed on the display unit 33 at the end of measurement is shown. The display image 300(2) includes a plurality of display areas 302, 304, 305, 306, 309, and 310, similarly to the display image (1). The display areas 302 and 304 of the display image 300(2) are Fig.12 The display area 302 and the display area 304 of the displayed image 300 ( 1 ) are the same.

[0111] The wearing direction of each sensor 200 used may be displayed near the icon image indicating the wearing position 20 in the display area 302, or may be displayed when the user clicks the icon image. Thus, the user can intuitively understand the wearing direction of the sensor 200 used.

[0112] The display area 308 displays an input operation button for ending the exercise test, that is, stopping the measurement by the sensor 200 . This allows the user to easily request the stop of the measurement by the sensor 200 via the display area 308 .

[0113] The display area 309 displays measurement-related information of each sensor 200 used. The surrounding X based on the output of a part of the sensors 200-1, 200-2, 200-6, and 200-7 used, is displayed in time series. S , Y S and Z S Therefore, the display area 309 cooperates with the display area 304 to output the measurement-related information corresponding to the wearing direction of the sensor 200 used through the above display, so that the wearing condition and its measurement result can be correspondingly associated and understood by the user. As a result, the user can distinguish and analyze, evaluate or use the measurement results according to the wearing conditions.

[0114] The display area 310 displays the motion state index of the object part of each monitored object action performed. The motion state index is an index indicating the motion state of the object part when the monitored object action is performed. The control processing unit 32 calculates the motion state index of the object part based on the measurement-related information of the sensor 200. For example, when the monitored object action is "right elbow flexion and extension", the measurement-related information of the sensors 200-1 and 200-2 at the wearing positions 20-1 and 20-2 is used. In this case, the control processing unit 32 can calculate the motion state index based on the difference in the measurement-related information of the sensors 200-1 and 200-2. Specifically, the control processing unit 32 calculates the three-dimensional rotation angle as the motion state index based on the difference in quaternion information of the sensors 200-1 and 200-2. In this case, the rotation angle is calculated in the order of around the Z axis →Y axis →X axis, and converted into a rotation angle around the X axis. S , Y S and Z S The rotation angle of the axis. In addition, the calculation order of the rotation angle can also be predetermined according to the monitoring object and the action. The display area 310 displays the action state indicators of a part of the monitoring object actions in the implemented monitoring object actions in time series.

[0115] According to this embodiment, in the measuring instrument 2, the holding part 210 includes a bag 211 formed of a stretchable member. The bag 211 has an insertion port extending in one direction. When the holding part 210 holding the sensor 200 in the bag 211 is worn on the target part, the holding part 210 can be worn on the target part in such a manner that the bag 211 is stretched in one direction. Thus, the time spent on wearing the sensor 200 can be reduced, and the sensor 200 can be prevented from falling off.

[0116] The bag 211 may include a cover 213 covering the insertion port 212. This can further prevent the sensor 200 from falling. The holding portion 210 may be worn on the target part via the wearing portion 220 extending in one direction. This can fix the wearing direction of the sensor 200.

[0117] The operating state monitoring system 1 associates the wearing direction of the sensor 200 with the measurement result and outputs the result. Therefore, the operating state monitoring system 1 can appropriately manage the measurement result according to the wearing direction of the sensor 200, thereby improving convenience.

[0118] Furthermore, the operation state monitoring system 1 automatically detects the initial wearing direction of the sensor 200. Therefore, the wearing direction can be appropriately set according to the preference of the subject P or the staff, and can be easily associated with the measurement results.

[0119] <Implementation method 2>

[0120] Next, Embodiment 2 is described. This embodiment is characterized in that the measurement results are processed according to the wearing direction. The structure and function of the operation state monitoring system 1 according to Embodiment 2 are the same as those of the operation state monitoring system 1 according to Embodiment 1, and therefore, the description thereof is omitted.

[0121] The control processing unit 32 of the motion state monitoring system 1 performs arithmetic processing corresponding to the wearing direction for the measurement information or the measurement-related information. The arithmetic processing here may be arithmetic processing for canceling and suppressing the influence of the wearing direction when, for example, the measurement-related information also changes according to the wearing direction when the object part moves in the same way with the same monitoring object action. In particular, the control processing unit 32 uses the quaternion information to calculate the rotation angles around the X-axis, Y-axis, and Z-axis and converts them into the rotation angles around the X-axis. S Axis, Y S Axis and Z S In the case of the rotation angle of the axis, it is necessary to convert the four-dimensional vector data into three-dimensional data. In this calculation process, there is a problem that the obtained rotation angles are different depending on the order in which the rotation angles around the axes are calculated, and the results cannot be correctly compared. In order to suppress such an influence, it is preferred to predetermine the calculation order of the rotation angles. Here, since the preferred calculation order of the rotation angles depends on the wearing direction of the sensor 200, it is effective to predetermine the calculation order corresponding to the wearing direction of the sensor 200.

[0122] Therefore, in the operation state monitoring system 1, the control processing unit 32 performs the operation processing using the operation processing table 320 that defines the operation processing method according to the wearing direction. Furthermore, the control processing unit 32 outputs the operation processing result to the output unit in a manner corresponding to the initial wearing direction of the sensor 200.

[0123] Fig.14 2 is a diagram illustrating the data structure of the calculation processing table 320 used by the control processing unit 32 in the operation state monitoring system 1 according to the second embodiment. Fig.14As shown, the calculation processing table 320 is a table that associates the wearing angle θ1 with the calculation order of the rotation angle. For example, the calculation processing table 320 stipulates that when the wearing angle θ1 is 0°, the rotation angle around each axis is calculated in the order of X axis→Z axis→Y axis. In addition, when the wearing angle θ1 is 90°, the calculation processing table 320 stipulates that when the wearing angle θ1 is 90°, the rotation angle around each axis is calculated in the order of Y axis→Z axis→X axis. By referring to the calculation processing table 320, the control processing unit 32 can easily perform the preferred calculation processing corresponding to the wearing direction.

[0124] Furthermore, although the calculation processing table 320 defines the order of calculating the rotation angle according to the wearing direction of the sensor 200 , the calculation order of the rotation angle may be defined according to the wearing direction and the target part or the monitoring target action instead.

[0125] In addition, the calculation table 320 may include calculation parameters used in the calculation process instead of the calculation order of the rotation angle or in addition to the calculation order of the rotation angle. In this case, the calculation parameter may be a constant specified according to the wearing angle θ1 or a predefined function with the wearing direction θ1 as a variable.

[0126] Thus, according to the second embodiment, the control processing unit 32 can easily compare and use a plurality of measurement results regardless of the wearing direction of the sensor 200. In addition, in the second embodiment, the same effects as those of the first embodiment are also achieved.

[0127] <Implementation method 3>

[0128] Next, the motion state monitoring system involved in Embodiment 3 is described. This embodiment is characterized in that the wearing direction of the sensor 200 is also detected during the action of the monitored object in addition to the initialization. Since the structure of the motion state monitoring system 1 involved in Embodiment 3 is the same as that of the motion state monitoring system of Embodiment 1 and Embodiment 2, the description is omitted. However, in the motion state monitoring system 1 involved in Embodiment 3, the wearing direction detection unit 30 detects the wearing direction in the measurement of the sensor 200 in addition to the initialization. Moreover, in the motion state monitoring system 1, the control processing unit 32 outputs the measurement-related information after the event in a manner that establishes a corresponding relationship with the wearing direction after the event based on the event of detecting a change in the wearing direction in the measurement of the sensor 200.

[0129] Fig.15 The flowchart exemplifies the operation state monitoring method using the operation state monitoring system 1 according to the third embodiment. Fig.15 The steps shown are Fig.11In addition to the steps shown in FIG. 1 , there are steps S20 to S21. Fig.11 The same steps as those shown are marked with the same symbols and the description is omitted.

[0130] In accordance with the fact that the display unit 33 displays the measurement-related information in step S16, the wearing direction detection unit 30 determines whether a wearing direction change event is detected, as shown in step S20. In step S20, for example, when the subject P intentionally changes the wearing direction during the monitored action, or when the wearing direction of the sensor 200 changes unintentionally during the monitored action, a wearing direction change event is detected.

[0131] Specifically, the wearing direction detection unit 30 can determine that a wearing direction change event has been detected when the difference in the wearing directions before and after, i.e., the difference in the wearing angle θ1, is greater than a predetermined threshold. The wearing direction detection at this time can use the same method as the initial wearing direction detection.

[0132] Alternatively, the wearing direction detection unit 30 may detect a wearing direction change event based on a change in the measurement-related information over time. For example, when the wearing direction detection unit 30 detects a discontinuous change greater than a predetermined threshold in the time series information of the measurement-related information, it may be determined that a wearing direction change event has been detected. Whether it is a discontinuous change can be determined by whether the difference between the measurement-related information before and after is greater than the predicted value by a predetermined threshold or more.

[0133] In step S20, if the wearing direction detection unit 30 determines that a wearing direction change event is detected (in the case of yes), the process proceeds to step S21. On the other hand, in step S20, if the wearing direction detection unit 30 does not determine that a wearing direction change event is detected (in the case of no), the process proceeds to step S17.

[0134] In step S21, the control processing unit 32 updates the wearing direction of the sensor 200 associated with the measurement-related information to the wearing direction after the change event. Then, the control processing unit 32 advances the process to step S17.

[0135] Thus, according to the third embodiment, the motion state monitoring system 1 detects the change in the measurement of the wearing direction of the sensor 200, establishes a correspondence relationship between the changed wearing direction and the measurement-related information, and outputs it. Therefore, even if the wearing direction is changed intentionally or unintentionally in the middle of the monitored object's action, the motion state monitoring system 1 can establish a correspondence relationship between the subsequent measurement results and the changed wearing direction and manage them. In addition, in the third embodiment, the same effects as those of the first and second embodiments are achieved.

[0136] In addition, the present disclosure is not limited to the above-mentioned embodiment, and can be appropriately changed within the scope not departing from the gist. For example, as other embodiments, the following can be listed.

[0137] <Other Embodiment 1>

[0138] In the first embodiment, the control processing unit 32 in the operation state monitoring system 1 establishes a correspondence relationship between the measurement-related information and the relative wearing direction of the sensor 200 with respect to the reference direction D, and outputs the same. However, the control processing unit 32 may convert the relative wearing direction detected by the user into an absolute direction, and replace the wearing direction, or establishes a correspondence relationship between the measurement-related information and the absolute direction, and outputs the same, based on the wearing direction.

[0139] For example, the control processing unit 32 can add the initial wearing direction θ1 of the sensor 200 to the detected initial wearing direction θ1. Fig. 9 The initial reference directions D and Z are shown S The angle between the axes is θ0, and the initial measurement axis A and Z S The control processing unit 32 calculates the wearing angle θ1' between the axes. Then, the control processing unit 32 establishes a corresponding relationship with the measurement-related information as information indicating the initial absolute direction of the sensor 200 and outputs it. In addition, the absolute direction of the sensor 200 during measurement can be calculated based on the initial absolute direction of the sensor 200, the rotation angle of the sensor 200 as the measurement result of the sensor 200, and the change amount of the wearing angle during measurement. By adopting this method, the user can analyze the measurement results considering more detailed measurement conditions, thereby improving the analysis accuracy.

[0140] <Other Embodiment 2>

[0141] In the second embodiment, the control processing unit 32 in the operation state monitoring system 1 performs arithmetic processing corresponding to the wearing direction for the measurement information or the measurement-related information. However, instead of or in addition to this, the control processing unit 32 may perform arithmetic processing corresponding to the absolute direction of the above-mentioned sensor 200 for the measurement information or the measurement-related information. In this case, the arithmetic processing table 320 may also associate the wearing angle θ1' described in the other embodiment 1 with the arithmetic parameters of the arithmetic processing specified according to the wearing angle θ1'. Thus, the control processing unit 32 can easily compare and use the measurement results regardless of the orientation of the sensor 200.

[0142] In the above-mentioned embodiment, the present disclosure is described as a hardware configuration, but the present disclosure is not limited thereto. The present disclosure can also implement each process involved in the operation state monitoring method by causing a processor to execute a computer program, for example, an operation state monitoring program.

[0143] In the above-mentioned embodiment, the computer is composed of a computer system including a personal computer, a word processor, etc. However, the present invention is not limited thereto, and the computer can also be composed of a server of a LAN, a host computer (personal computer) communication, a computer system connected to the Internet, etc. In addition, it is also possible to disperse the functions of each device on the network and constitute the computer by the entire network.

[0144] Fig.16 The schematic structure diagram of the operation state monitoring device 3 including a computer involved in the above-mentioned embodiment is shown as an example. Fig.16 As shown, the action state monitoring device 3 may also include a processor PRC, a memory MMR, a storage device STR, and a user interface UI. The storage device STR stores the processing performed by each structure of the action state monitoring device 3 as a program. In addition, the processor PRC reads the program from the storage device STR into the memory MMR and executes the program. Thus, the processor PRC implements the functions of each structure in the action state monitoring device 3. The user interface UI may also include input devices such as a keyboard, a mouse, and a camera, and output devices such as a display, a printer, and a speaker.

[0145] Each structure of the action state monitoring device 3 can also be implemented by dedicated hardware. In addition, part or all of each structural element can also be implemented by a general or dedicated circuit (Circuitry), a processor PRC, etc. or a combination thereof. These can be composed of a single chip or a plurality of chips connected via a bus. Part or all of each structural element can also be implemented by a combination of the above-mentioned circuits, etc. and programs. In addition, as a processor PRC, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an FPGA (Field-programmable Gate Array), a quantum processor (quantum computer control chip), etc. can be used.

[0146] In addition, when part or all of the structural elements of the action state monitoring device 3 are implemented by multiple information processing devices, circuits, etc., the multiple information processing devices, circuits, etc. can be configured in a centralized manner or in a decentralized manner. For example, the information processing devices, circuits, etc. can also be implemented by a cloud server system, a cloud computing system, etc. as each connected via a communication network NW. In addition, the function of the action state monitoring device 3 can also be provided in the form of SaaS (Software as a Service).

[0147] The execution order of each process in the apparatus and method shown in the technical solution, the specification and the drawings can be implemented in any order unless it is specifically stated as "earlier than", "prior to", etc., and the output of the previous process is not used in the subsequent process. Even if the action flow in the technical solution, the specification and the drawings is described using "first", "next", etc. for convenience, it does not mean that it must be implemented in this order.

[0148] Any type of non-temporary computer-readable medium can be used to store the program and provide it to the computer. Non-temporary computer-readable media include any type of tangible storage media. Examples of non-temporary computer-readable media include: magnetic storage media (such as floppy disks, magnetic tapes, hard disk drives, etc.), optical magnetic storage media (such as optical magnetic disks), CD-ROM (Compact Disc Read Only Memory), CD-R (Recordable Compact Disc), CD-R / W (Rewritable Compact Disc), semiconductor memory (such as mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), Flash ROM, RAM (Random Access Memory), etc.). Any type of temporary computer-readable medium can be used to provide the program to the computer. Examples of temporary computer-readable media include electrical signals, optical signals, and electromagnetic waves. Temporary computer-readable media can provide the program to the computer via a wired communication line (such as wires and optical fibers) or a wireless communication line.

[0149] From the present disclosure described in this way, it is obvious that the embodiments of the present disclosure can be changed in many ways. Such changes should not be considered as departing from the spirit and scope of the present disclosure, and it is obvious to those skilled in the art that all such modifications are included in the scope of the technical solution.

Claims

1. An action state monitoring system for monitoring an action state of a target part of a body of a subject, comprising: A measuring instrument for measuring the action state; an action state monitoring device for monitoring the action state, The measuring instrument has: A sensor for detecting the action state; a holding portion for holding the sensor, The holding portion includes a bag formed by a stretchable member. The bag has an insertion port extending in one direction and holds the sensor inserted from the insertion port inside. When the holding portion holding the sensor in the bag is worn on the target site, the holding portion is worn on the target site in such a manner that the bag is stretched in the one direction.

2. The operating status monitoring system according to claim 1, wherein: The bag contains cloth as a material, and includes a cover that covers the insertion port.

3. The operating status monitoring system according to claim 1, wherein: The measuring instrument further includes a wearing portion to be worn on the target site. The holding portion is worn on the target site via the wearing portion extending in the one direction.

4. The operating state monitoring system according to claim 3, wherein: The holding portion and the wearing portion are provided with holes at portions corresponding to predetermined positions of the target part. The portion of the wearing portion close to the body is black.

5. The operating state monitoring system according to claim 3, wherein: The holding portion is mounted on the wearing portion by means of a hook and loop fastener.

6. The operating state monitoring system according to claim 1, wherein: The holding portion includes a transmissive portion that transmits light emitted by a light emitting portion provided on the sensor.

7. The operating status monitoring system according to claim 1, wherein: The operation status monitoring device comprises: an acquisition unit that acquires measurement information of the sensor worn on the target part; a wearing direction detection unit, which detects the wearing direction of the sensor; A control processing unit is configured to establish a correspondence relationship between measurement-related information associated with the measurement information and the wearing direction of the sensor and output the corresponding information.

8. The operating state monitoring system according to claim 7, wherein: The wearing direction of the sensor is a wearing direction of the sensor with respect to a direction predetermined according to the target part.

9. The operating state monitoring system according to claim 7, wherein: The wearing direction of the sensor is a wearing direction of the sensor with respect to an axial direction of a wearing portion worn on the target site.

10. The operating status monitoring system according to claim 7, wherein: The control processing unit, in response to detecting an event in which the wearing direction changes during measurement by the sensor, associates the measurement-related information after the event with the wearing direction after the event and outputs the information.

11. The operating status monitoring system according to claim 7, wherein: The control processing unit performs a calculation process according to the wearing direction on the measurement information or the measurement-related information, and outputs the calculation process result in correspondence with the wearing direction of the sensor.

12. A motion state monitoring method, which uses a motion state monitoring system to monitor the motion state of a target part of a subject's body, wherein: The operation status monitoring system comprises: A measuring instrument for measuring the action state; an action state monitoring device for monitoring the action state, The measuring instrument has: A sensor for detecting the action state; a holding portion for holding the sensor, The holding portion includes a bag formed by a stretchable member. The bag has an insertion port extending in one direction and holds the sensor inserted from the insertion port inside. When the holding part holding the sensor in the bag is worn on the target part, the holding part is worn on the target part in such a manner that the bag is stretched in the one direction. The action state monitoring method comprises: a step of acquiring measurement information of a sensor worn on the target part; A step of detecting a wearing direction of the sensor; A step of associating measurement-related information associated with the measurement information and the wearing direction of the sensor and outputting the associated information.

13. An action state monitoring program product, which causes a computer included in an action state monitoring system to execute a process for monitoring the action state of a target part of a body of a subject, The operation status monitoring system comprises: A measuring instrument for measuring the action state; an action state monitoring device for monitoring the action state, The measuring instrument has: A sensor for detecting the action state; a holding portion for holding the sensor, The holding portion includes a bag formed by a stretchable member. The bag has an insertion port extending in one direction and holds the sensor inserted from the insertion port inside. When the holding part holding the sensor in the bag is worn on the target part, the holding part is worn on the target part in such a manner that the bag is stretched in the one direction. The operation status monitoring program product enables the computer to execute the following steps, namely: a step of acquiring measurement information of a sensor worn on the target part; A step of detecting a wearing direction of the sensor; A step of associating measurement-related information associated with the measurement information and the wearing direction of the sensor and outputting the associated information.

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