JP2020081413A - Motion detection device, motion detection system, motion detection method and program - Google Patents

Abstract

To start an exercise test in response to the motion of a subject.SOLUTION: A motion detection device includes: a start control unit for receiving a command of start of an exercise test, and controlling the start of measurement for the test; a posture detection unit for detecting the posture of a region by using measurement data of an acceleration sensor and an angular velocity sensor being worn in the body region of the user; a time acquisition unit; a motion state detection unit for detecting the motion state of the user, by using the posture detected by the posture detection unit and the elapsed time acquired by the time acquisition unit; and a display control unit for outputting an image showing the results of the test. The motion state detection unit detects an initial state of the motion state and a first state of the motion state. The start control unit starts the measurement for the test when the motion state becomes the first state from the initial state after having received the command.SELECTED DRAWING: Figure 9

Description

The present invention relates to a motion detection device, a motion detection system, a motion detection method, and a program.

There are various tests that measure the motor function during rehabilitation and the motor function of the elderly. For example, as a method of measuring a motor function, an eye open one leg standing test and a TUG (Timed up and go) test are known. This method of measuring motor function may be used as part of the criteria for diagnosing locomotor instability. In addition, musculoskeletal instability is a disease concept that refers to a state in which there is a decrease in balance ability and locomotion ability due to a muscular organ disease that causes a decline in motor function with aging, and the risk of withdrawal or falling is increased. ..

The TUG test is a test in which a subject stands up from a chair, turns around a target object provided in front of the chair, and measures the time until the subject sits on the chair again. And, it is said that the deterioration of cognitive function may induce a feature that it takes time from turning to starting walking in the TUG test.

For example, in a TUG test, there is a terminal device that detects a turning time required for a subject to turn around a target object (see, for example, Patent Document 1). In the TUG test, the terminal device of Patent Document 1 detects the turning time required for the subject to turn around the target object based on the motion information about the waist of the subject. The terminal device of Patent Document 1 provides at least one of the result of the test for evaluating the attention function of the subject, the result of the test for evaluating the memory function of the subject, and the result of the test for evaluating the language function of the subject, and the turnover time. Based on this, the cognitive function of the subject is evaluated.

JP, 2018-29706, A

When starting the TUG test, the terminal device of Patent Document 1 outputs the voice "preparation" and then the voice "start". The subject begins the action for the TUG test with the "start" voice signal. For example, a test subject whose cognitive function has deteriorated may not be able to start a test motion at the timing of the "start" voice signal. In addition, the test subject cannot start the test operation at his own timing.

Therefore, the motion detection device, the motion detection system, the motion detection method, and the program of the present disclosure aim to start a motion test in response to the motion of the subject.

A motion detection device according to an aspect of the present invention includes a start control unit that receives a command to start a motion test and controls the start of measurement for the test, an acceleration sensor attached to a body part of a user, and an angular velocity. An attitude detection unit that acquires measurement data of acceleration and angular velocity of each sensor and that detects the attitude of the body part using the measurement data, a time acquisition unit that acquires elapsed time, and the attitude detection unit that detects the attitude. An operation state detection unit that detects the operation state of the user using the posture and the elapsed time acquired by the time acquisition unit, and display control that outputs an image indicating the result of the test including the operation state. And a motion state detection unit that detects an initial state of the motion state and a first state of the motion state in which the amount of change in the posture from the initial state is a first predetermined amount, and The start control unit starts measurement for the test when the operation state changes from the initial state to the first state after receiving the command.

According to the technology of the present disclosure, it becomes possible to start a motion test in response to the motion of the subject.

The figure which shows an example of a structure of the operation|movement detection system which concerns on embodiment. A perspective view showing an example of composition of a measuring instrument concerning an embodiment. The figure which shows the mounting example to the test subject's body of the measuring device which concerns on embodiment. The figure which shows the mounting example to the test subject's body of the measuring device which concerns on embodiment. Block diagram showing an example of a hardware configuration of a measuring instrument according to an embodiment Block diagram showing an example of a hardware configuration of a terminal according to an embodiment Block diagram showing an example of a hardware configuration of a server device according to an embodiment The figure which shows an example of the functional structure of the measuring instrument which concerns on embodiment. The figure which shows an example of the functional structure of the terminal which concerns on embodiment. The figure which shows an example of the functional structure of the server apparatus which concerns on embodiment. The flowchart which shows an example of operation|movement of the eye open one leg standing test in the operation|movement detection system which concerns on embodiment. The figure which shows an example of the flow of the one-leg standing test with the eyes open in the motion detection system according to the embodiment. The figure which shows an example of the start screen of the motor function test which concerns on embodiment. Flowchart showing an example of the operation of the TUG test in the operation detection system according to the embodiment The figure which shows an example of the flow of the TUG test in the operation|movement detection system which concerns on embodiment. The figure which shows the example of each operation|movement of the test subject in the TUG test which concerns on embodiment. The figure which shows an example of the time series data of the measurement data of the measuring device in the TUG test which concerns on embodiment. The figure which shows an example of the display screen of the evaluation result which concerns on embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the present specification and the drawings, components having substantially the same functional configuration are designated by the same reference numerals, and duplicate description will be omitted.

(Embodiment)
<Structure of motion detection system 1000>
The configuration of the motion detection system 1000 according to the embodiment will be described. The motion detection system 1000 automatically detects each motion of a subject who wears the measuring instrument 1 and performs a motor function test. In the present embodiment, the motor function test is the eye open one leg standing test and the TUG test, but the motor function test is not limited to this and may be any motor function test. The motor function test is an example of the motor test.

In the one-leg standing test with the eyes open, the subject raises one foot from the floor by about 5 cm with both hands on the waist and standing upright. Then, the time for which the subject can stand up after raising one foot from the floor by about 5 cm is measured. For example, the duration until the subject's body shakes greatly and tends to fall or the raised foot touches the floor surface is measured.

In the TUG test, the test subject stands up from a posture of sitting on a chair, walks, folds back at a mark point 3 m ahead of the chair, and sits on the chair again. Then, the time required from when the subject starts to rise from the chair to when he/she sits on the chair again is measured. Such a TUG test is also called a "3m TUG test".

For example, according to the functional evaluation criteria for locomotor instability of the Japan Orthopedic Association, as a part of the diagnostic criteria for locomotor instability, a person having a motor function corresponding to the following functional evaluation criteria is defined.
(1) The duration of the one-leg standing test with the eyes open must be less than 15 seconds.
(2) The 3m TUG test time is 11 seconds or more.

FIG. 1 is a diagram showing an example of the configuration of a motion detection system 1000 according to an embodiment. As shown in FIG. 1, the motion detection system 1000 includes a measuring instrument 1, a terminal 2, and a server device 3. The measuring instrument 1 is attached to the body of a subject and measures the movement of the attachment site. The terminal 2 acquires the measurement result from the measuring instrument 1, detects the motion of the subject using the measurement result, and presents the detection result to the subject. The server device 3 acquires the detection result and the like from the terminal 2 and accumulates the detection result, and further provides the accumulated detection result data to the terminal 2. The terminal 2 is an example of a motion detection device, and the server device 3 is an example of an information processing device.

In the present embodiment, the terminal 2 and the server device 3 communicate with each other and send and receive information and commands. The terminal 2 and the server device 3 may be indirectly connected via the communication network 4, or may be directly connected via wired communication or wireless communication. In the present embodiment, the terminal 2 and the server device 3 are connected via the communication network 4. The communication network 4 may be the Internet, a wired LAN (Local Area Network), a wireless LAN, a mobile communication network, a telephone line communication network, or any other communication network using wired or wireless communication. In this embodiment, the communication network 4 is the Internet.

In the present embodiment, one server device 3 is connected to one terminal 2, but it may be connected to a plurality of terminals. Also, a plurality of server devices 3 may be provided.

The measuring instrument 1 and the terminal 2 communicate with each other via wireless communication to exchange information and commands. The wireless communication between the measuring instrument 1 and the terminal 2 is short-range wireless communication such as Bluetooth (registered trademark), NFC, and ZigBee, but is not limited to this. For example, the communication between the measuring instrument 1 and the terminal 2 may be wireless LAN or wired communication.

Each of the measuring instrument 1, the terminal 2, and the server device 3 may be configured by one or more devices. When the device is composed of two or more devices, the two or more devices may be arranged in one device or may be separately arranged in two or more separate devices. In the present description and claims, "device" can mean not only one device but also a system composed of a plurality of devices.

The terminal 2 is an information processing device having a communication function and capable of displaying an image. An example of the terminal 2 is a computer device, and specifically, a notebook PC (Personal Computer), a mobile device, a smart device such as a smartphone and a tablet terminal, a wearable PC, a desktop PC, or the like. Although the terminal 2 is described as a tablet terminal in the present embodiment, the terminal 2 is not limited to this.

The server device 3 is an information processing device having a communication function. The server device 3 may form a cloud server on the Internet. In the present embodiment, the server device 3 is a computer device, but is not limited to this.

The measuring instrument 1 is a device that measures a moving direction and a moving amount of the measuring instrument 1. In the present embodiment, the measuring instrument 1 has an acceleration sensor and an angular velocity sensor, and measures the acceleration and the angular velocity of the measuring instrument 1. Specifically, the measuring instrument 1 has a triaxial acceleration sensor and a triaxial angular velocity sensor, and measures the amount of movement of the XYZ axes in the triaxial directions and the rotation angle around the triaxial that are set for each sensor. It should be noted that the acceleration sensor and the angular velocity sensor are not limited to the triaxial acceleration sensor and the triaxial angular velocity sensor, and may be sensors of two axes or less.

FIG. 2 is a perspective view showing an example of the configuration of the measuring instrument 1 according to the embodiment. As shown in FIG. 2, the measuring instrument 1 includes a measuring unit 1a having an acceleration sensor and an angular velocity sensor, and a band-shaped band 1b for mounting the measuring unit 1a on the body of a subject. The measuring unit 1a is attached to the band 1b. A connector is arranged at the end of the band 1b. The structure of the connector may be any structure as long as the end portion is connected to another portion of the band 1b. For example, the connector may be a fastener such as a hook and a snap, or a hook and loop fastener such as Velcro (registered trademark). Further, the band 1b may be stretchable so that it can be worn on various parts of the subject's body.

3 and 4 are diagrams showing an example of mounting the measuring instrument 1 according to the embodiment on the body of a subject. As shown in FIGS. 3 and 4, the measuring instrument 1 is attached to a measurement target site in the body of the subject in accordance with the motor function test, such as the thigh and the chest of the subject.

<Hardware configuration of measuring instrument 1>
FIG. 5 is a block diagram showing an example of the hardware configuration of the measuring instrument 1 according to the embodiment. As shown in FIG. 5, the measuring instrument 1 includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, a memory 104, and a communication interface (I/F). 105, an acceleration sensor 106, and an angular velocity sensor 107 are included as constituent elements. The components are connected to each other via, for example, a bus or wired communication, but may be connected via wireless communication.

The CPU 101 is composed of a processor and the like, and controls the operation and overall operation of each unit of the measuring instrument 1. The ROM 102 is composed of a non-volatile semiconductor storage device or the like, and stores various programs and various parameters that operate in the measuring instrument 1. The RAM 103 is composed of a volatile semiconductor memory device or the like, and is used as a work area of the CPU 101. The RAM 103 provides a storage area for temporarily storing data when performing various kinds of signal processing.

The memory 104 stores various information such as data used in various programs and measurement data of the acceleration sensor 106 and the angular velocity sensor 107. The memory 104 is configured by a storage device such as a volatile or non-volatile semiconductor memory, an HDD (Hard Disk Drive), or an SSD (Solid State Drive). The memory 104 may include the ROM 102 and/or the RAM 103.

The program is stored in advance in the ROM 102, the memory 104, or the like. The program is read by the CPU 101 from the ROM 102 or the memory 104 to the RAM 103 and expanded. The CPU 101 executes each coded instruction in the program expanded in the RAM 103.

The program is not limited to the ROM 102 and the memory 104, but may be stored in a storage medium such as a flash memory card and various programs recorded in the storage medium may be read. In addition, the program may be transmitted to the communication I/F 105 or the like via a wired network, a wireless network, broadcasting, or the like, and may be loaded into the RAM 103 or the like.

The functions realized by the CPU 101 described above may be realized by a program execution unit such as the CPU 101, a circuit, or a combination of the program execution unit and the circuit. For example, such a function may be realized by an LSI (Large Scale Integration) that is an integrated circuit. Such a function may be individually implemented on a single chip, or may be implemented on a single chip so as to include a part or all of the functions. As an LSI, an FPGA (Field Programmable Gate Array) that can be programmed after the LSI is manufactured, a reconfigurable processor in which connection and/or settings of circuit cells inside the LSI can be reconfigured, or a plurality of devices for specific purposes An ASIC (Application Specific Integrated Circuit) in which functional circuits are integrated may be used.

The communication I/F 105 is a connection device for connecting to the terminal 2. The communication I/F 105 is connected to the terminal 2 via wireless communication.

Under the control of the CPU 101, the acceleration sensor 106 detects acceleration in the three XYZ-axis directions and outputs an acceleration signal to the CPU 101 or the memory 104. The XYZ axes are axes preset in the acceleration sensor 106.

Under the control of the CPU 101, the angular velocity sensor 107 detects angular velocities around the three XYZ axes and outputs an angular velocity signal to the CPU 101 or the memory 104. That is, the angular velocity sensor 107 detects the angular velocity in the yawing direction, the pitching direction, and the rolling direction around the XYZ axes. The XYZ axes are axes preset in the angular velocity sensor 107, and are the same as the XYZ axes of the acceleration sensor 106 in the present embodiment. When the XYZ axes are different between the angular velocity sensor 107 and the acceleration sensor 106, the mutual relationship may be acquired in advance and stored in the memory 104 or the like. The angular velocity sensor 107 may operate in synchronization with the acceleration sensor 106 under the control of the CPU 101.

<Hardware configuration of terminal 2>
FIG. 6 is a block diagram showing an example of the hardware configuration of the terminal 2 according to the embodiment. As shown in FIG. 6, the terminal 2 includes a CPU 201, a ROM 202, a RAM 203, a memory 204, a communication I/F 205, a network I/F 206, an input device 207, a display device 208, and a timer 209. Include as a component. The components are connected to each other via, for example, a bus or wired communication, but may be connected via wireless communication. The configurations and functions of the CPU 201, ROM 202, RAM 203, memory 204, and communication I/F 205 are the same as those of the CPU 101, ROM 102, RAM 103, memory 104, and communication I/F 105 of the measuring instrument 1.

The network I/F 206 is a connection device for connecting to the communication network 4 and other devices. The network I/F 206 is connected to the server device 3 via the communication network 4.

The input device 207 is a device that receives an operation input by a user. The input device 207 may include input devices such as buttons, dials, keys, a mouse, a touch panel, and a microphone for voice input. Although not limited thereto, in the present embodiment, the input device 207 includes a touch panel and a microphone.

The display device 208 displays various screens under the control of the CPU 201. The display device 208 may be a display such as a liquid crystal panel, an organic EL (Electroluminescence), and an inorganic EL. The display device 208 may include a speaker for audio output. Although not limited to this, in the present embodiment, the display device 208 is a touch panel that also serves as the input device 207.

The timer 209 measures time. The timer 209 may measure either time or elapsed time. The timer 209 outputs the measured time to the CPU 201 or the memory 204. The CPU 201 stores the acceleration signal and the angular velocity signal acquired from the measuring instrument 1 via the communication I/F 105 and the measurement time of the timer 209 in the memory 204 in association with each other.

<Hardware configuration of server device 3>
FIG. 7 is a block diagram showing an example of the hardware configuration of the server device 3 according to the embodiment. As shown in FIG. 7, the server device 3 includes a CPU 301, a ROM 302, a RAM 303, a memory 304, a network I/F 305, an input device 306, and a display device 307 as constituent elements. The components are connected to each other via, for example, a bus or wired communication, but may be connected via wireless communication.

The configurations and functions of the CPU 301, the ROM 302, the RAM 303, and the memory 304 are the same as those of the CPU 101, the ROM 102, the RAM 103, and the memory 104 of the measuring instrument 1. The configurations and functions of the network I/F 305, the input device 306, and the display device 307 are similar to those of the network I/F 206, the input device 207, and the display device 208 of the terminal 2.

<Functional configuration of measuring instrument 1>
FIG. 8 is a diagram showing an example of a functional configuration of the measuring instrument 1 according to the embodiment. As shown in FIG. 8, the measuring device 1 includes a wireless communication unit 11, a device control unit 12, an acceleration measuring unit 13, and an angular velocity measuring unit 14 as functional components.

The function of the wireless communication unit 11 is realized by the communication I/F 105 and the like. The wireless communication unit 11 wirelessly communicates with the terminal 2 and transmits the acceleration data and the angular velocity data measured by the acceleration measuring unit 13 and the angular velocity measuring unit 14 to the terminal 2.

The function of the acceleration measuring unit 13 is realized by the acceleration sensor 106, the CPU 101, and the like. The acceleration measuring unit 13 converts the acceleration signal measured by the acceleration sensor 106 into acceleration data and outputs the acceleration data to the device control unit 12. The acceleration data includes the direction and value of acceleration.

The function of the angular velocity measuring unit 14 is realized by the angular velocity sensor 107, the CPU 101, and the like. The angular velocity measuring unit 14 converts the angular velocity signal measured by the angular velocity sensor 107 into angular velocity data, and outputs the angular velocity data to the device control unit 12. The angular velocity data includes the direction and value of the angular velocity.

The function of the device control unit 12 is realized by the CPU 101 and the like. The device control unit 12 controls the operation and overall operation of each unit of the measuring instrument 1. For example, the device control unit 12 may synchronize the operations of the acceleration sensor 106 and the angular velocity sensor 107. The device control unit 12 associates the acceleration data and the angular velocity data measured at the same timing with each other, and transmits them to the terminal 2 via the wireless communication unit 11. Further, the device control section 12 may store the associated acceleration data and angular velocity data in the memory 104.

<Functional configuration of terminal 2>
FIG. 9 is a diagram showing an example of a functional configuration of the terminal 2 according to the embodiment. As shown in FIG. 9, the terminal 2 includes an input unit 21, a wireless communication unit 22, a network communication unit 23, and an automatic determination control unit 24 as functional components. Furthermore, the automatic determination control unit 24 includes a selection control unit 241, a time acquisition unit 242, a posture detection unit 243, a motion state detection unit 244, a start control unit 245, an end control unit 246, and an evaluation unit 247. The display control unit 248 and the storage unit 249 are included as functional components.

The function of the input unit 21 is realized by the input device 207 and the like. The input unit 21 receives commands and the like from the user.

The function of the wireless communication unit 22 is realized by the communication I/F 205 or the like. The wireless communication unit 22 wirelessly communicates with the measuring instrument 1 and acquires acceleration data and angular velocity data from the measuring instrument 1.

The function of the network communication unit 23 is realized by the network I/F 206 or the like. The network communication unit 23 communicates with the server device 3 via the communication network 4 and transmits the result of the motor function test to the server device 3, or the server device 3 records historical data and/or statistics of the result of the motor function test. Get the data.

The function of the automatic determination control unit 24 is realized by the CPU 201, the memory 204, and the like. The automatic determination control unit 24 controls the terminal 2 so as to automatically start and end the motor function test. Further, the automatic determination control unit 24 controls the presentation of the result of the motor function test to the subject.

The function of the selection control unit 241 is realized by the CPU 201 or the like. The selection control unit 241 receives the selection of the motor function test from the plurality of motor function tests via the input to the input unit 21 by the user. Further, the selection control unit 241 determines to execute the control corresponding to the accepted motor function test, and starts the control. That is, the selection control unit 241 starts the selected motor function test. The selection control unit 241 outputs the determination result to the time acquisition unit 242, the posture detection unit 243, and the like. In the present embodiment, the plurality of motor function tests are an eye open one leg standing test and a TUG test.

The function of the time acquisition unit 242 is realized by the timer 209 or the like. The time acquisition unit 242 acquires the elapsed time from the start point of the motor function test by the selection control unit 241 and outputs it to the operation state detection unit 244 and the like.

The function of the posture detection unit 243 is realized by the CPU 201 and the like. The posture detection unit 243 detects the posture of the measuring instrument 1 using the acceleration data and the angular velocity data acquired from the terminal 2. Specifically, the posture detection unit 243 detects the rotation angle of the measuring instrument 1 around the XYZ axes of the acceleration sensor 106 and the angular velocity sensor 107. Further, the posture detection unit 243 converts the rotation angle of the measuring instrument 1 around the XYZ axes, detects the rotation angles around the three orthogonal reference axes Xs, Ys, and Zs, and the operation state detection unit 243. To 244.

The Xs axis, the Ys axis, and the Zs axis are axes for the subject wearing the measuring instrument 1, and are set by the posture detection unit 243. The Zs axis is a vertical axis in the direction of gravity with respect to the subject. The Xs axis is a horizontal axis in the front-back direction with respect to the subject. The Ys axis is a horizontal axis in the left-right direction with respect to the subject. The rotation angle around the Zs axis indicates the yaw angle of the subject's posture. The rotation angle around the Xs axis indicates the roll angle of the posture of the subject. The rotation angle around the Ys axis indicates the pitch angle of the posture of the subject. The rotation angle around the XsYsZs axis indicates the posture of the subject.

The rotation angle around the XsYsZs axis may be detected by any known method. For example, a Quaternion value obtained by signal processing the acceleration signal and the angular velocity of the acceleration sensor 106 and the angular velocity sensor 107 is converted into a rotation matrix and further converted into an Euler angle. Then, the yaw angle, the roll angle, and the pitch angle can be obtained from the Euler angle.

The function of the operation state detection unit 244 is realized by the CPU 201 and the like. The motion state detection unit 244 detects the motion state of the subject using the rotation angle around the XsYsZs axis detected by the posture detection unit 243 and the elapsed time acquired by the time acquisition unit 242. Specifically, the operation state detection unit 244 detects each operation state of the subject in the motor function test from the rotation angle around the XsYsZs axis, and further, based on the elapsed time, the time required for the change between the operation states. To detect.

For example, the storage unit 249 stores in advance, for each motor function test, a rotation angle about the XsYsZs axis corresponding to each operation state included in the motor function test. The motion state detection unit 244 may detect the motion corresponding to the acquired rotation angle around the XsYsZs axis by referring to the relationship between the rotation angle around the XsYsZs axis and the motion stored in the storage unit 249. ..

In addition, the operating state detection unit 244 determines the initial operating state. After receiving the command to start the motor function test from the selection control unit 241, the operation state detection unit 244 does not change the operation state of the subject for a predetermined initial duration, that is, the rotation angle around the XYZ axes is If it does not change, the operation state at that time is determined as the initial state. The fact that the rotation angle around the XYZ axes does not change means that the amount of change in the rotation angle around the XYZ axes is equal to or less than a threshold value.

The posture detection unit 243 acquires the orientation of the XYZ axes in the initial state, and acquires the relationship between the XYZ axes and the XsYsZs axes. The posture detection unit 243 subsequently converts the XYZ axis coordinate system into the XsYsZs axis coordinate system based on this relationship.

The function of the start control unit 245 is realized by the CPU 201 and the like. The start control unit 245 controls the start of measurement for the motor function test. The start control unit 245 acquires the operating state from the operating state detecting unit 244. The start control unit 245 acquires the initial state determined by the operation state detection unit 244. After acquiring the initial state, the start control unit 245 determines the timing when the amount of change in the rotation angle around the XsYsZs axis from the initial state reaches a predetermined amount as the measurement start timing for the motor function test.

Specifically, the operation state detection unit 244 detects the first state of the operation state in which the amount of change in the rotation angle around the XsYsZs axis from the initial state is a predetermined amount. The start control unit 245 determines the timing at which the first state is detected by the operating state detection unit 244 as the start timing. Therefore, the acceleration signal and the angular velocity signal acquired after the start timing are used as the result of the motor function test.

The function of the end control unit 246 is realized by the CPU 201 and the like. The end control unit 246 controls the end of measurement for the motor function test. The end control unit 246 acquires the operating state from the operating state detecting unit 244. The end control unit 246 measures the timing at which the amount of change in the rotation angle around the XsYsZs axis from the initial state becomes equal to or less than the threshold value after the last operation state in the motor function test is detected for the motor function test. Determine the end timing.

Specifically, the operation state detection unit 244 detects the second state of the operation state in which the amount of change in the rotation angle around the XsYsZs axis from the initial state is equal to or less than the threshold value. The start control unit 245 determines the timing at which the second state is detected by the operation state detection unit 244 as the end timing. Therefore, the acceleration signal and the angular velocity signal acquired after the end timing are not used for the result of the motor function test.

The function of the evaluation unit 247 is realized by the CPU 201 or the like. The evaluation unit 247 generates evaluation information that evaluates the result of the motor function test performed by the subject, and outputs the evaluation information to the display control unit 248. Specifically, the evaluation unit 247 acquires, from the operation state detection unit 244, operation information including each operation state detected by the operation state detection unit 244 and the required time between the operation states. Further, the evaluation unit 247 requests and acquires the historical data including the results of the subject's past motor function test from the server device 3. The history data includes the execution date and time of the motor function test performed by the subject in the past and the motion information in association with each other. The history data may include the evaluation result of the motor function test in association with the implementation date and time and the operation information.

Further, the evaluation unit 247 may request the server device 3 to obtain statistical data as a result of a motor function test of a general subject and acquire the statistical data. The statistical data is the statistical data of the results of each motor function test, and may be shown using various statistical values such as arithmetic mean value, geometric mean value, median value and mode value. For example, the statistical data may include statistical data for each sex, statistical data for each age, statistical data for each age group, and the like.

For example, the evaluation unit 247 detects the total required time from the start timing to the end timing of the motor function test from the motion information, and compares the total required time with the evaluation reference of the total required time stored in the storage unit 249. By doing so, the evaluation of the total required time may be determined.

The evaluation unit 247 may also generate an evaluation based on the history data by comparing the required time between each operation state included in the operation information with the required time between each past operation state.

In addition, the evaluation unit 247 may generate an evaluation based on the statistical data by comparing the total required time of the motor function test with the statistical value of the total required time. For example, the statistical value of the total required time may be a statistical value of the same gender as the subject, may be a statistical value of the same age or age group as the subject, is the same gender and the same age or age as the subject. It may be a statistic of a layer.

Further, the evaluation unit 247 associates the motion information of the motor function test with the date and time of execution of the motor function test, and transmits them to the server device 3. Further, the evaluation unit 247 may transmit the evaluation result to the server device 3 in association with the operation information and the implementation date and time. The server device 3 stores the information acquired from the evaluation unit 247 in the history information storage unit 33.

The function of the display control unit 248 is realized by the CPU 201 and the like. The display control unit 248 controls the screen displayed on the display device 208 of the terminal 2. For example, the display control unit 248 controls the screen displayed on the display device 208 at the start of the motor function test and the screen displaying the evaluation result. For example, the display control unit 248 converts the evaluation result output from the evaluation unit 247 into image data to be displayed on the screen. The display control unit 248 outputs the image data to the display device 208, but may output the image data to a device other than the terminal 2 via the network communication unit 23.

The function of the storage unit 249 is realized by the memory 204 or the like. The storage unit 249 stores various types of information and enables the stored information to be retrieved. For example, the storage unit 249 stores, for each motor function test, the relationship between the operating state and the rotation angle around the XsYsZs axis, the evaluation standard, and the like.

<Functional configuration of server device 3>
FIG. 10 is a diagram showing an example of a functional configuration of the server device 3 according to the embodiment. As shown in FIG. 10, the server device 3 includes a network communication unit 31, a device control unit 32, a history information storage unit 33, and a statistical information storage unit 34 as functional components.

The function of the network communication unit 31 is realized by the network I/F 305 or the like. The network communication unit 31 communicates with the terminal 2 via the communication network 4 to receive the result of the motor function test or the like, or in response to a request from the terminal 2, history data and/or statistics of the result of the motor function test. The data is transmitted to the terminal 2.

The functions of the history information storage unit 33 and the statistical information storage unit 34 are both realized by the memory 304 or the like. The history information storage unit 33 stores history data of each subject who has performed the motor function test using each terminal 2. The historical data of each subject includes the historical data of each motor function test. The history data of the motor function test may include the date and time of execution of the motor function test, the operation information of the motor function test, and the evaluation result of the motor function test in association with each other.

The statistical information storage unit 34 stores statistical data including statistical values of results of each motor function test of various subjects. The statistical data may be general-purpose statistical data acquired from outside the motion detection system 1000, or may be statistical data calculated from history data stored in the history information storage unit 33. In the latter case, the device control unit 32 may calculate the statistical data.

The function of the device control unit 32 is realized by the CPU 301 and the like. The device control unit 32 controls the operation and overall operation of each unit of the server device 3. For example, the device control unit 32 may control the input/output of information with respect to the history information storage unit 33 and the statistical information storage unit 34. Further, the device control unit 32 may calculate the statistical data of the statistical information storage unit 34 using the historical data of the historical information storage unit 33.

<Operation of Motion Detection System 1000>
[Behavior of eye-opening leg standing test]
Among the operations of the motion detection system 1000, the operation of the eye open leg standing test will be described. FIG. 11 is a flowchart showing an example of the operation of the eye open one leg standing test in the motion detection system 1000 according to the embodiment. FIG. 12 is a diagram showing an example of the flow of an eye open one leg standing test in the motion detection system 1000 according to the embodiment.

As shown in FIGS. 11 and 12, in step S101, the subject mounts the measuring instrument 1 on the thigh of the leg to be lifted in the one-leg standing test with the eyes open, as shown in FIG. The measuring instrument 1 may be attached to any part of the leg between the knee and the hip joint. Then, the subject activates an application program for carrying out the motor function test on the terminal 2. For example, the program may be started by the subject selecting an icon displayed on the screen of the terminal 2.

After starting the program, the terminal 2 displays a screen 2a as shown in FIG. 13, for example. FIG. 13 is a diagram showing an example of the start screen of the motor function test according to the embodiment. The screen 2a includes a subject column 2c including the subject's name, sex, age, date of birth, etc., an icon 2ba for selecting and executing the TUG test, and an icon 2bb for selecting and executing the eye open one leg standing test. And an icon 2bc for displaying the results of both tests. The screen 2a also includes an icon for changing the subject displayed in the subject column 2c, a band setting icon for setting the attachment site of the measuring instrument 1, and the like.

The subject touches or pushes the icon 2bb with a finger or the like in order to select the one-leg standing test with the eyes open. As a result, the selection control unit 241 of the terminal 2 instructs the time acquisition unit 242, the posture detection unit 243, and the like to start the control corresponding to the eye open one leg standing test. Since the measuring instrument 1 and the terminal 2 wirelessly communicate with each other, the terminal 2 may be operated by a person other than the subject.

Next, in step S102, after the instruction of the selection control unit 241 is acquired, the time acquisition unit 242 starts measuring elapsed time, and the posture detection unit 243 receives the acceleration data and the angular velocity data of the measuring instrument 1 from the terminal 2. Get started.

Next, in step S103, the posture detection unit 243 acquires the relationship between the XYZ axes and the XsYsZs axes set in the measuring instrument 1 by using the acceleration data and the angular velocity data obtained from the measuring instrument 1, Initialize the attitude of the measuring instrument 1. After that, the posture detection unit 243 detects the rotation angle of the measuring instrument 1 around the XsYsZs axis. Specifically, the posture detection unit 243 detects the pitch angle of the measuring instrument 1 around the Ys axis. The process of step S103 corresponds to the item “0. start measurement preparation” in FIG.

Next, in step S104, the motion state detection unit 244 determines whether or not the initial state of the motion state of the subject has been detected. When the rotation angle around the XsYsZs axis of the measuring instrument 1 detected by the posture detecting section 243 does not change during the initial duration after the instruction of the selection control section 241, the operating state detecting section 244 does not change the measuring instrument 1 at that time. Posture, that is, the motion state of the subject is detected as an initial state. The posture of the measuring instrument 1 at this time is maintained in the initialized state. An example of the initial duration is 5 seconds, but is not limited to this. Hereinafter, the posture of the subject in the initial state is also referred to as “first reference posture”. In the first reference posture, the subject is upright.

When the initial state is detected (YES in step S104), operation state detection unit 244 proceeds to step S105. The state in which the initial state is detected corresponds to the item "1. Preparation for measurement" in FIG. The terminal 2 may notify the subject of the state of “1. measurement preparation completed” by voice.

When the initial state is not detected due to the subject's movement or the like (No in step S104), the motion state detection unit 244 ends the eye open one leg standing test. In addition, when the initial state is not detected, the operation state detection unit 244 may return to step S102. In this case, the operation state detection unit 244 may end the eye open one leg standing test when the series of steps S102 to S104 is repeated a predetermined number of times or more. Alternatively, when the operation state detection unit 244 cannot detect the initial state for a predetermined period longer than the initial duration even after repeating the series of processes of steps S102 to S104, the eye open one leg standing test ends. May be.

Next, in step S105, the operation state detection unit 244 determines whether the first state of the operation state of the subject has been detected. The motion state detection unit 244 detects, as the first state, a motion state in which the posture of the subject changes from the first reference posture by the first predetermined amount. Specifically, the operation state detection unit 244 detects, as the first state, the state in which the pitch angle of the measuring instrument 1 has changed upward from the initial state by the first predetermined amount. An example of the first predetermined amount is 10 degrees, but is not limited to this. The first state is a state in which an upright subject raises the leg on which the measuring instrument 1 is mounted to a state determined by the one-leg standing test with the eyes open. Hereinafter, the posture of the subject in the first state is also referred to as “second reference posture”.

When the first state is detected (YES in step S105), the operation state detection unit 244 proceeds to step S106. The state in which the first state is detected corresponds to the items “2. start of foot lift” to “3. completion of foot lift” in FIG. The terminal 2 may notify the subject by voice of the state of “3. foot lift completed”.

When the first state is not detected (No in step S105), the motion state detection unit 244 ends the eye open one leg standing test. The operation state detection unit 244 may end the eye open one leg standing test when the first state is not detected for a predetermined time after the initial state is detected.

In step S106, the operation state detection unit 244 determines whether the duration of the first state has reached the first predetermined time. The duration of the first state is the duration of a state in which the posture of the subject has changed from the first reference posture by the first predetermined amount or more. Therefore, the motion state detection unit 244 determines whether the state in which the posture of the subject has changed from the first reference posture by the first predetermined amount or more has continued for the first predetermined time. An example of the first predetermined time is 1 second, but is not limited to this. The first predetermined time is an example of the first period.

When the operation state detection unit 244 continues for the first predetermined time (YES in step S106), the operation state detection unit 244 proceeds to step S107. The state in which the first predetermined time is continued corresponds to the item “4. Foot lift complete” in FIG.

The operation state detection unit 244 ends the eye-opening one leg standing test when the test subject's foot is lowered and the test subject has not continued for the first predetermined time (No in step S106).

In step S107, the start control unit 245 determines the timing at which the duration of the first state reaches the first predetermined time as the measurement start timing for the eye open one leg standing test. Thereby, the acceleration and angular velocity data measured after the start timing is used as the test result. The process of step S107 corresponds to the item “4. One leg standing start” in FIG.

Next, in step S108, the operation state detection unit 244 determines whether the second state of the operation state of the subject has been detected. The motion state detection unit 244 detects a motion state in which the posture of the subject changes from the second reference posture by the second predetermined amount as the second state. Specifically, the operation state detection unit 244 detects, as the second state, the state in which the pitch angle of the measuring instrument 1 has changed downward from the first state by the second predetermined amount. In other words, the second state is a state in which the pitch angle of the measuring instrument 1 is an upward pitch angle less than the first predetermined amount with respect to the initial state. Therefore, the second state is a state in which the subject's legs are lower than the state determined by the one-leg standing test with the eyes open.

When the second state is detected (YES in step S108), the operation state detection unit 244 proceeds to step S109. When the second state is not detected (No in step S108), the motion state detection unit 244 repeats step S108 and continues the eye open one leg standing test.

In step S109, the end control unit 246 determines the timing at which the second state is detected as the measurement end timing for the eye open one leg standing test. After determining the end timing, the time acquisition unit 242 stops measuring the elapsed time, and the posture detection unit 243 stops acquisition of acceleration data and angular velocity data from the terminal 2. Then, the data of the acceleration and the angular velocity measured from the start timing to the end timing are used as the test result. The process of step S109 corresponds to the item “5. One leg standing end” in FIG. The terminal 2 may notify the subject of the state of “5. one leg standing end” by voice.

Next, in step S110, the evaluation unit 247 opens the eyes by using the detection time of each state detected by the operation state detection unit 244, the elapsed time between the states, the evaluation reference stored in the storage unit 249, and the like. Evaluate the results of the one-leg standing test.

Next, in step S111, the display control unit 248 displays the evaluation result of the evaluation unit 247 on the screen of the terminal 2.

[Operation of TUG test]
The operation of the TUG test among the operations of the operation detection system 1000 will be described. FIG. 14 is a flowchart showing an example of the operation of the TUG test in the operation detection system 1000 according to the embodiment. FIG. 15 is a diagram showing an example of the flow of a TUG test in the motion detection system 1000 according to the embodiment.

FIG. 16 is a diagram showing an example of each operation of the subject in the TUG test according to the embodiment. FIG. 17 is a diagram showing an example of time-series data of measurement data of the measuring instrument 1 in the TUG test according to the embodiment. FIG. 17 shows time-series data of the yaw angle and the pitch angle detected from the measurement data of the measuring instrument 1 by the attitude detection unit 243. The time-series data is associated with each operation in FIG.

As shown in FIGS. 14 and 15, in step S201, the subject wears the measuring instrument 1 on the chest as shown in FIG. The measuring instrument 1 may be attached to any part of the body between the shoulder and the waist. Then, the subject activates an application program for carrying out the motor function test on the terminal 2. After starting the program, the subject touches or pushes the icon 2ba with a finger or the like in order to select the TUG test on the screen 2a displayed on the terminal 2 as shown in FIG. 13, for example. Accordingly, the selection control unit 241 of the terminal 2 instructs the time acquisition unit 242, the attitude detection unit 243, and the like to start the control corresponding to the TUG test.

The processes of steps S202 and S203 are the same as steps S102 and S103 in the eye open one leg standing test, respectively. The process of step S203 corresponds to the item “0. start of measurement preparation” in FIG. 15 and corresponds to the state “0” in FIGS. 16 and 17. The motion state detection unit 244 detected the motion state of the test subject using the pitch angle detected by the posture detection unit 243 in the eye open one leg standing test, but in the TUG test, it used the pitch angle and the yaw angle. Detects the motion status of the subject.

Next, in step S204, the motion state detection unit 244 determines whether or not the initial state of the motion state of the subject has been detected. Hereinafter, the posture of the subject in the initial state is also referred to as “reference posture”. In the reference posture, the subject is sitting on the chair.

When the initial state is detected (YES in step S204), operation state detection unit 244 proceeds to step S205. The state in which the initial state is detected corresponds to the item “1. Preparation for measurement” in FIG. 15 and the state “0” in FIGS. 16 and 17. The terminal 2 may notify the subject of the state of “1. measurement preparation completed” by voice.

The operation state detection unit 244 ends the TUG test when the initial state is not detected due to the subject moving or the like (No in step S204). In addition, when the initial state is not detected, the operation state detection unit 244 may return to step S202, and when the series of processes of steps S202 to S204 is repeated a predetermined number of times or more, ends the TUG test. May be. Alternatively, the operating state detection unit 244 may end the TUG test when the initial state cannot be detected for a predetermined period longer than the initial duration.

Next, in step S205, the motion state detection unit 244 determines whether the first motion condition of the subject has been detected. The motion state detection unit 244 detects a motion state in which the posture of the subject changes from the reference posture by a third predetermined amount as the first state. Specifically, the operation state detection unit 244 detects, as the first state, the state in which the pitch angle of the measuring instrument 1 changes downward from the initial state by the third predetermined amount. An example of the third predetermined amount is 10 degrees, but is not limited to this. The first state is a state in which the seated subject bends forward to stand up.

When the first state is detected (YES in step S205), the operation state detection unit 244 proceeds to step S206.

When the first state is not detected (No in step S205), the operation state detection unit 244 ends the TUG test. The operation state detection unit 244 may end the TUG test when the first state is not detected for a predetermined time after detecting the initial state.

In step S206, the start control unit 245 determines the timing at which the first state is detected by the operation state detection unit 244 as the measurement start timing for the TUG test. Thereby, the acceleration and angular velocity data measured after the start timing is used as the test result. The process of step S206 corresponds to the item “2. start of standing up” in FIG. 15 and corresponds to the state “1” in FIGS. 16 and 17. The terminal 2 may notify the subject of the state of “2. start of standing up” by voice.

Next, in step S207, the motion state detection unit 244 determines whether or not the standing state of the subject has been detected. The motion state detection unit 244 detects a motion state in which the amount of change in the posture in the pitching direction from the reference posture is less than the third predetermined amount as the standing state. Specifically, the standing state is a state in which the amount of change in the pitch angle of the measuring instrument 1 from the initial state is downward and less than the third predetermined amount.

When the standing state is detected (YES in step S207), the operation state detection unit 244 proceeds to step S208. The state in which the standing state is detected corresponds to the item “3. Standing completed” in FIG. 15 and corresponds to the state “1” in FIGS. 16 and 17. In addition, when the standing state is not detected (No in step S207), the operation state detection unit 244 ends the TUG test. The operating state detection unit 244 may end the TUG test when the standing state is not detected for a predetermined time after the detection of the first state.

In step S208, the motion state detection unit 244 determines whether or not the outward walking motion of the subject has been detected. After detecting the standing state, the motion state detecting unit 244 detects the forward walking motion when the posture detecting unit 243 detects the forward acceleration of the subject.

When the walking motion on the outward path is detected (YES in step S208), the operation state detection unit 244 proceeds to step S209. The state in which the outward walking motion is detected corresponds to the item “4. Outward walking” in FIG. 15 and corresponds to the state “2” in FIGS. 16 and 17. Moreover, when the walking motion on the outward path is not detected (No in step S208), the operation state detection unit 244 ends the TUG test. The operation state detection unit 244 may end the TUG test when a walking operation is not detected for a predetermined time after detecting the standing state.

In step S209, the motion state detection unit 244 determines whether or not the turning motion of the subject has been detected. The motion state detection unit 244 detects, as a turning motion, a motion state in which the amount of change in the posture in the yawing direction from the reference posture exceeds the fourth predetermined amount. Specifically, in the turning motion, the amount of change in the yaw angle of the measuring instrument 1 from the initial state is counterclockwise with respect to the subject being more than a fourth predetermined amount, or clockwise with more than a fourth predetermined amount. To be in a certain state. An example of the fourth predetermined amount of yaw angle is 30 degrees, but is not limited to this.

If the turning motion is detected (YES in step S209), the motion state detection unit 244 proceeds to step S210. The state in which the turning motion is detected corresponds to the item “5. Start of turning” in FIG. 15 and corresponds to the state “3” in FIGS. 16 and 17. Further, when the turning motion is not detected (No in step S209), the motion state detection unit 244 ends the TUG test. The operation state detection unit 244 may end the TUG test when the turning operation is not detected for a predetermined time after detecting the walking state.

In step S210, the motion state detection unit 244 determines whether or not the walking motion of the subject on the return path has been detected. The motion state detection unit 244 detects a motion state in which the amount of change in the posture in the yawing direction from the reference posture is equal to or greater than a fifth predetermined amount as a backward walking motion. Specifically, the amount of change in the yaw angle of the measuring instrument 1 from the initial state in the backward movement is counterclockwise to the subject by a fifth predetermined amount or more, or clockwise by a fifth predetermined amount. The above is the state. An example of the fifth predetermined amount is 165 degrees, but is not limited to this.

When the backward walking motion is detected (YES in step S210), the motion state detection unit 244 proceeds to step S211. The state in which the walking motion on the return path is detected corresponds to the items "6. Turning completion" to "7. Walking on the return path" in Fig. 15, and corresponds to the state "4" in Figs. 16 and 17. Further, when the backward walking motion is not detected (No in step S210), the motion state detection unit 244 ends the TUG test. The operation state detection unit 244 may end the TUG test when a walking motion is not detected for a predetermined time after detecting the turning motion.

In step S211, the motion state detection unit 244 determines whether or not the turning motion of the subject has been detected. The motion state detection unit 244 detects, as a turning motion, a motion state in which the amount of change in the posture in the yawing direction from the reference posture is equal to or less than the sixth predetermined amount. Specifically, in the turning state, the amount of change in the yaw angle of the measuring instrument 1 from the initial state is counterclockwise to the subject at a sixth predetermined amount or less, or clockwise at a sixth predetermined amount or less. To be in a certain state. An example of the sixth predetermined amount of yaw angle is 150 degrees, but is not limited to this.

When the turning motion is detected (YES in step S211), the motion state detection unit 244 proceeds to step S212. The state in which the turning motion is detected corresponds to the item “8. Turning start” in FIG. 15 and corresponds to the state “5” in FIGS. 16 and 17. Moreover, the operation state detection part 244 complete|finishes a TUG test, when a turning operation|movement is not detected (No in step S211). In addition, the operation state detection unit 244 may end the TUG test when the turning motion is not detected for a predetermined time after the walking motion on the return path is detected.

In step S212, the motion state detection unit 244 determines whether or not the sitting motion of the subject has been detected. The motion state detection unit 244 detects, as a seating motion, a motion state in which the amount of change in the pitching direction posture from the reference posture exceeds the seventh predetermined amount. Specifically, the sitting motion is a state in which the downward change amount in the pitch angle of the measuring instrument 1 from the initial state is more than the seventh predetermined amount. An example of the seventh predetermined amount of pitch angle is, but is not limited to, 10 degrees.

When the sitting motion is detected (YES in step S212), the motion state detection unit 244 proceeds to step S213. The state in which the sitting motion is detected corresponds to the item “10. Start of sitting” in FIG. 15 and corresponds to the state “6” in FIGS. 16 and 17. In addition, when the sitting motion is not detected (No in step S212), the operation state detection unit 244 ends the TUG test. The operation state detection unit 244 may end the TUG test when the sitting motion is not detected for a predetermined time after detecting the turning motion.

Next, in step S213, the operation state detection unit 244 determines whether the second state of the operation state of the subject has been detected. The motion state detection unit 244 detects, as a second state, a motion state in which the amount of change from the reference posture of the subject's posture is a third predetermined amount or less. Specifically, the operation state detection unit 244 is in a state where the pitch angle of the measuring instrument 1 is a downward pitch angle that is equal to or smaller than the third predetermined amount with respect to the initial state. Therefore, the second state is a state in which the subject is sitting on the chair.

When the second state is detected (YES in step S213), the operation state detection unit 244 proceeds to step S214. When the second state is not detected (No in step S213), the operation state detection unit 244 ends the TUG test. The operation state detection unit 244 may end the TUG test when the second motion is not detected for a predetermined time after the seating motion is detected.

In step S214, the end control unit 246 determines the timing at which the second state is detected as the end timing of the measurement for the TUG test. As a result, the acceleration and angular velocity data measured between the start timing and the end timing is used as the test result. Note that the process of step S214 corresponds to the item "11. sitting down" in FIG. 15 and corresponds to the state "0" in FIGS. 16 and 17. The terminal 2 may notify the subject of the state of "11. sitting finished" by voice.

Then, in step S215, the evaluation unit 247 uses the detection time of each state detected by the operation state detection unit 244, the elapsed time between the states, the evaluation criteria stored in the storage unit 249, and the like to perform the TUG test. Judge the evaluation.

Next, in step S216, the display control unit 248 displays the evaluation result of the evaluation unit 247 on the screen of the terminal 2. For example, the display control unit 248 may display the screen I as shown in FIG. FIG. 18 is a diagram showing an example of an evaluation result display screen according to the embodiment.

As shown in FIG. 18, the item at the top of the screen I shows the subject information. The items in the second step are the latest and past time required for the TUG test and the one-leg standing test with the eyes open, and the average value of the corresponding age group, which is an example of the statistical values of the time required for the TUG test and the one-leg standing test with the eyes open, The respective evaluation results are shown. The item in the third row indicates the time required for each of the latest and past operations of the TUG test. Note that the item in the third row may include an average value of the required time in the past for each operation, a statistical value of the required time for each operation, and the like. The fourth row shows graphically the latest and past evaluation results of the TUG test and the one-leg standing test with the eyes open. Note that the terminal 2 may display the screen I of FIG. 18 when the user touches or presses the icon 2bc on the start screen 2a of the motor function test in the terminal 2 illustrated in FIG.

As described above, the operation detection system 1000 operates by the processing of steps S210 to S216. Note that the processes of steps S210 to S216 do not include the process of determining the item “9. turning end” shown in FIG. 15, but the process may be included.

<Effects>
As described above, the terminal 2 as the motion detection device according to the embodiment receives the command to start the motor function test and controls the start of measurement for the motor function test, and the start controller 245. Of the acceleration sensor and the angular velocity sensor attached to the body part of the body, and the posture detection unit 243 that detects the posture of the body part using the measurement data and the time acquisition unit 242 that acquires the elapsed time. Using the posture detected by the posture detection unit 243 and the elapsed time acquired by the time acquisition unit 242, an operation state detection unit 244 that detects the operation state of the user, and a motor function test including the operation state. And a display control unit 248 that outputs an image showing the result. The operation state detection unit 244 detects the initial state of the operation state and the first state of the operation state in which the amount of change in posture from the initial state is the first predetermined amount, and the start control unit 245 accepts the above command. Then, when the operating state changes from the initial state to the first state, measurement for the motor function test is started.

According to the above configuration, the terminal 2 starts the measurement for the motor function test when the user's operation state changes to the predetermined operation state after the command to start the motor function test. Thereby, the terminal 2 can automatically start the measurement in response to the user's operation. This reduces the frequency with which the user or the like operates the terminal 2, and the user can easily perform the motor function test. Further, the user can start the operation for the motor function test at his own timing.

Further, the terminal 2 according to the embodiment may include an end control unit 246 that controls the end of measurement for the motor function test. Further, the motion state detection unit 244 detects the second state of the motion state in which the posture indicates the end of the measurement, and when the motion state becomes the second state, the termination control unit 246 terminates the measurement for the motor function test. You may. The second state may be an operation state in which the amount of change in posture from the initial state is equal to or less than the second predetermined amount.

According to the above configuration, the terminal 2 can automatically end the measurement for the motor function test in response to the user's operation. This reduces the frequency with which the user or the like operates the terminal 2, and the user can easily end the motor function test.

Moreover, in the terminal 2 according to the embodiment, the operation state detection unit 244 may detect the first state when the state in which the posture changes from the initial state by the first predetermined amount or more continues for the first period. According to the above configuration, measurement for the motor function test is started based on the first state as described above. Thereby, for example, in the one-leg standing test with the eyes open, the measurement can be started with the user surely raising the leg. Therefore, the accuracy of the results obtained from the one-leg standing test with the eyes open is improved.

Further, in the terminal 2 according to the embodiment, the posture detection unit 243 may detect at least one of the pitch angle and the yaw angle of the body part of the user as the posture. According to the above configuration, in a motor function test such as an eye open one leg standing test and a TUG test, it is possible to easily and highly accurately detect the operating state of the user.

In addition, the terminal 2 according to the embodiment may include the evaluation unit 247 that evaluates the motor function test performed by the user using the operating state. Furthermore, the display control unit 248 may output an image showing the evaluation result of the evaluation unit 247. According to the above configuration, the user or the like can confirm the level and the like of the result of the motor function test performed by the user.

Further, in the terminal 2 according to the embodiment, the evaluation unit 247 acquires the integrated evaluation result obtained by integrating the evaluation results of the plurality of motor function tests, and the display control unit 248 outputs the image showing the integrated evaluation result. May be. According to the above configuration, the user or the like can collectively check the levels and the like of the results of the plurality of motor function tests performed by the user.

Further, in the terminal 2 according to the embodiment, the evaluation unit 247 acquires the history data of the result of the motor function test, and the display control unit 248 stores the operation state detected by the operation state detection unit 244 and the history data. You may output the image which also shows. According to the above configuration, the user or the like can confirm by comparing the result of the motor function test performed by the user with the past history data.

In addition, the terminal 2 according to the embodiment may include a selection control unit 241 that receives a selection from a plurality of motor function tests and starts the selected motor function test. According to the above configuration, the terminal 2 can perform a plurality of motor function tests. Furthermore, the user can select and perform a motor function test from a plurality of motor function tests. The plurality of motor function tests may include an eye open one leg standing test and a TUG test.

The motion detection system 1000 according to the embodiment includes a measuring instrument 1 attached to a body part of a user and having an acceleration sensor and an angular velocity sensor, a terminal 2 communicating with the measuring instrument 1, and an information processing apparatus communicating with the terminal 2. And the server device 3 as. The server device 3 acquires the result of the motor function test from the terminal 2, accumulates it as history data, and outputs the history data to the terminal 2. According to the above configuration, the same effect as the terminal 2 according to the embodiment can be obtained.

<Other embodiments>
Although the example of the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. That is, various modifications and improvements are possible within the scope of the present invention. For example, various modifications of the embodiment and forms constructed by combining the constituent elements of different embodiments are also included in the scope of the present invention.

For example, the automatic determination control unit 24 of the terminal 2 according to the embodiment may not have all of the functions. At least one of the measuring instrument 1 and the server device 3 may include a part of the function of the automatic determination control unit 24. For example, the measuring instrument 1 may include at least part of the functions of the posture detection unit 243, the motion state detection unit 244, the time acquisition unit 242, and the like. For example, the server device 3 may include at least a part of the functions of the evaluation unit 247 and the like.

Further, the motion detection system 1000 according to the embodiment automatically detects each motion of the subject in the motor function test, but the invention is not limited to this. The detection target of the motion detection system is not limited to the motor function test, and may be, for example, any motor test including a motor aptitude test and a motor performance test. Then, the motion detection system may automatically detect each motion of the subject in the exercise test.

Further, the present invention may be a motion detection method. For example, a motion detection method according to an embodiment of the present invention is a motion detection method for a motion detection device, including a step of receiving a command to start a motion test and controlling the start of measurement for the test, and Acquiring the measurement data of the acceleration and the angular velocity of the acceleration sensor and the angular velocity sensor attached to the body part of the body, and detecting the posture of the body part using the measurement data; The step of detecting the operation state of the user using the acquired posture and the acquired elapsed time; and the step of outputting an image showing the result of the test including the operation state. In the step of detecting a state, a step of detecting the initial state of the operation state and the first state of the operation state in which the amount of change in the posture from the initial state is a first predetermined amount, and controlling the start Then, when the operating state changes from the initial state to the first state after receiving the command, measurement for the test is started. According to this operation detecting method, the same effect as that of the terminal 2 can be obtained. Such an operation detection method may be realized by a circuit such as a CPU or LSI, an IC card or a single module.

Further, the present invention may be a program or a non-transitory computer-readable recording medium in which the program is recorded. Further, it goes without saying that the above program can be distributed via a transmission medium such as the Internet.

For example, a program according to an embodiment of the present invention is a program executed by a computer, which receives a command to start an exercise test and controls the start of measurement for the test, and a body part of the user. The measurement data of the acceleration and the angular velocity of each of the acceleration sensor and the angular velocity sensor attached to the body are acquired, the process of detecting the posture of the part using the measurement data, the process of acquiring the elapsed time, and the detected posture And detecting the operating state by using the acquired elapsed time and a process of detecting the operating state of the user and a process of outputting an image showing the result of the test including the operating state. In the process, the initial state of the motion state and the first state of the motion state in which the amount of change in the posture from the initial state is a first predetermined amount are detected, and in the process of controlling the start, the command When the operation state changes from the initial state to the first state after accepting, the measurement for the test is started. According to this program, the same effect as the terminal 2 can be obtained.

Moreover, all the numbers such as ordinal numbers and quantities used above are examples for specifically explaining the technique of the present invention, and the present invention is not limited to the exemplified numbers. Further, the connection relationship between the constituent elements is an example for specifically explaining the technique of the present invention, and the connection relationship for realizing the function of the present invention is not limited to this.

Further, the block division in the functional block diagram is an example, and even if a plurality of blocks are realized as one block, one block is divided into a plurality of blocks, and/or a part of the functions is transferred to another block. Good. Also, the functions of a plurality of blocks having similar functions may be processed in parallel or in time division by a single piece of hardware or software.

1 Measuring instrument 2 Terminal (motion detection device)
3 Server device (information processing device)
4 communication network 33 history information storage unit 34 statistical information storage unit 106 acceleration sensor 107 angular velocity sensor 241 selection control unit 242 time acquisition unit 243 posture detection unit 244 operation state detection unit 245 start control unit 246 end control unit 247 evaluation unit 248 display control 1000 Motion detection system

Claims (13)

A start control unit that receives a command to start a motion test and controls the start of measurement for the test,
An attitude detection unit that acquires measurement data of acceleration and angular velocity of each of the acceleration sensor and the angular velocity sensor attached to the body part of the user, and detects the attitude of the body part using the measurement data,
A time acquisition unit that acquires the elapsed time,
An operation state detection unit that detects the operation state of the user by using the posture detected by the posture detection unit and the elapsed time acquired by the time acquisition unit,
A display control unit for outputting an image showing the result of the test including the operation state,
The operating state detection unit detects an initial state of the operating state and a first state of the operating state in which the amount of change in the posture from the initial state is a first predetermined amount,
The operation detection device, wherein the start control unit starts measurement for the test when the operation state changes from the initial state to the first state after receiving the command. Further comprising an end control unit for controlling the end of measurement for the test,
The operation state detection unit detects a second state of the operation state in which the posture indicates the end of the measurement,
The operation detection device according to claim 1, wherein the end control unit ends the measurement for the test when the operation state becomes the second state. The motion detection device according to claim 2, wherein the second state is the motion state in which the amount of change in the posture from the initial state is equal to or less than a second predetermined amount. The operation state detection unit detects the first state when a state in which the posture has changed from the initial state by the first predetermined amount or more continues for a first period. Motion detection device. The motion detection device according to claim 1, wherein the posture detection unit detects at least one of a pitch angle and a yaw angle of the portion as the posture. Further comprising an evaluation unit that evaluates an exercise test performed by the user using the operating state,
The operation detection device according to claim 1, wherein the display control unit outputs an image showing an evaluation result of the evaluation unit. The evaluation unit acquires an integrated evaluation result obtained by integrating evaluation results of the plurality of exercise tests,
The operation detection device according to claim 6, wherein the display control unit outputs an image indicating the integrated evaluation result. The evaluation unit acquires history data of the test result,
The operation detection device according to claim 6, wherein the display control unit outputs an image that shows the operation state detected by the operation state detection unit and the history data together. The motion detection device according to claim 1, further comprising a selection control unit that receives a selection from a plurality of exercise tests and starts the selected exercise test. The motion detection device according to claim 9, wherein the plurality of exercise tests include an eye open one leg standing test and a TUG test. A measuring instrument that is attached to a body part of a user and has an acceleration sensor and an angular velocity sensor;
An operation detecting device that communicates with the measuring instrument, and an information processing device that communicates with the operation detecting device,
The motion detection device,
A start control unit that receives a command to start a motion test and controls the start of measurement for the test,
A posture detection unit that obtains measurement data of acceleration and angular velocity from each of the acceleration sensor and the angular velocity sensor, and detects the posture of the part using the measurement data;
A time acquisition unit that acquires the elapsed time,
An operation state detection unit that detects an operation state of the user by using the posture detected by the posture detection unit and the elapsed time acquired by the time acquisition unit,
A display control unit for outputting an image showing the result of the test including the operation state,
The operating state detection unit detects an initial state of the operating state and a first state of the operating state in which the amount of change in the posture from the initial state is a first predetermined amount,
The start control unit starts measurement for the test when the operation state changes from the initial state to the first state after receiving the command,
A motion detection system in which the information processing device acquires the test result from the motion detection device, accumulates the test result as history data, and outputs the history data to the motion detection device. A method for detecting motion of a motion detecting device, comprising:
Receiving a command to start a motion test and controlling the start of measurement for the test;
Acquiring measurement data of acceleration and angular velocity of each of the acceleration sensor and the angular velocity sensor attached to the body part of the user, and detecting the posture of the part using the measurement data,
A step to get the elapsed time,
Detecting the motion state of the user by using the detected posture and the acquired elapsed time;
Outputting an image showing the result of the test including the operating state,
In the step of detecting the operating state, an initial state of the operating state and a first state of the operating state in which the amount of change in the posture from the initial state is a first predetermined amount are detected,
In the step of controlling the start, after the command is accepted, when the operation state changes from the initial state to the first state, measurement for the test is started. A program to be executed by a computer,
A process of receiving a command to start a motion test and controlling the start of measurement for the test,
A process of acquiring measurement data of acceleration and angular velocity of each of the acceleration sensor and the angular velocity sensor attached to the body part of the user, and detecting the posture of the part using the measurement data;
The process of acquiring the elapsed time,
A process of detecting the motion state of the user by using the detected posture and the acquired elapsed time;
And outputting an image showing the result of the test including the operation state,
In the process of detecting the operation state, an initial state of the operation state, and a first state of the operation state in which the amount of change in the posture from the initial state is a first predetermined amount,
A program for starting measurement for the test when the operation state changes from the initial state to the first state after receiving the command in the process of controlling the start.

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