JP6381252B2 - Moving motion analysis apparatus and program - Google Patents

Description

  The present invention relates to a technique for evaluating a moving motion such as walking of a person using an acceleration sensor.

  Conventionally, rehabilitation for patients with gait disorders has been performed in medical facilities, nursing homes, and the like.

  In this rehabilitation, an instructor, such as a physical therapist, generally uses a patient's gait exercises to create a gait training program suitable for the patient and to understand the patient's recovery level. Is repeatedly evaluated.

  On the other hand, in recent years, an attempt has been made to measure acceleration generated during walking of a person using an acceleration sensor and to evaluate walking motion using the measurement result (see, for example, Patent Document 1, Abstract, etc.). ).

JP 2013-059489 A

  Generally, when an instructor such as a physical therapist evaluates a patient's walking motion, the instructor visually observes the patient's walking motion and evaluates it subjectively. For this reason, the evaluation results tend to vary depending on differences in the instructor's habits, proficiency level, evaluation timing, etc., making it difficult to objectively evaluate.

  Further, even in the existing walking evaluation technology using an acceleration sensor, a technology that enables objective evaluation of walking motion has not been established yet. In particular, careful observation of acceleration information about movements of interest in human movement is considered useful for evaluation, but no method has yet been established to efficiently perform such observations. .

  For example, after introduction of quantitative evaluation using an acceleration sensor, it is considered that the instructor needs to concentrate on visual evaluation and walking assistance during the walking of the patient, as in the past. ing. For this reason, the collected acceleration data is rarely confirmed in real time, and it is generally considered to be confirmed after the end of walking. On the other hand, in order to maximize the quantitative evaluation of walking motion, it is necessary to synchronize the visual evaluation and the analysis result of acceleration data on the same time axis, but it is necessary to synchronize both after the end of walking. It's not easy.

  Under such circumstances, there is a demand for a technique that enables an objective and efficient evaluation in a moving motion such as walking of a person.

The invention of the first aspect
Collecting means for collecting acceleration data representing acceleration at each time during the movement of the person using an acceleration sensor attached to the person;
Storage means for storing a time corresponding to a desired timing as a time of interest during the movement of the person from which the acceleration data is collected;
Display control for controlling the display unit to display the collected acceleration data in a predetermined display form and to display the position of the acceleration data at the time of interest and / or the time around the time of interest. And a mobile motion analysis apparatus comprising the means.

The invention of the second aspect is
The mobile motion analysis apparatus according to the first aspect is provided, wherein the display control unit controls the display unit so as to display a position on the display of acceleration data at the time of interest.

The invention of the third aspect is
The display unit is configured to display a display range of acceleration data in a part of a time period including the time of interest in a period during the movement of the person from which the acceleration data is collected. A moving motion analysis apparatus according to the first aspect for controlling is provided.

The invention of the fourth aspect is
The mobile motion analysis apparatus according to the third aspect, wherein the time zone has a time width corresponding to a predetermined number of steps of the person.

The invention of the fifth aspect is
In response to a predetermined operation by the operator during the movement of the person from which the acceleration data is collected, the storage means stores a time substantially the same as the time at which the operation was performed as the time of interest. The mobile motion analysis apparatus according to any one of the first to fourth aspects is provided.

The invention of the sixth aspect is
The storage means associates a plurality of types of operations with a plurality of types of interest times, stores the types of interest times associated with the types of operations performed by the operator,
The display control means controls the display unit to display the position on the display of acceleration data at the time of interest and / or the time around the time of interest and the type of the time of interest. Provided is a moving motion analysis apparatus of a viewpoint.

The invention of the seventh aspect
The storage means stores, as the time of interest, a time at which an acceleration represented by a part of the acceleration data occurs when a part of the collected acceleration data satisfies a predetermined condition. A moving motion analysis apparatus according to any one of the fourth aspects is provided.

The invention of the eighth aspect
The mobile motion analysis apparatus according to the seventh aspect, in which the storage unit stores, as the time of interest, a time at which an acceleration represented by the acceleration data exceeds a predetermined threshold value.

The invention of the ninth aspect is
The mobile motion analysis apparatus according to the eighth aspect, in which the predetermined threshold is set based on the acceleration data of the person collected in the past.

The invention of the tenth aspect is
The mobile motion analysis apparatus according to the seventh aspect, wherein the storage means stores, when the partial waveform of acceleration represented by the acceleration data approximates a predetermined waveform, the time when the partial waveform is generated as the time of interest. provide.

The invention of the eleventh aspect is
The mobile motion analysis apparatus according to the tenth aspect is provided, wherein the predetermined waveform is set based on the acceleration data of the person collected in the past.

The invention of the twelfth aspect is
A recording means for recording the moving image of the person in a period during the movement of the person from which the acceleration data is collected;
The display unit is configured to display a partial moving image recorded in a part of a time zone including the time of interest in a period during the movement of the person from which the acceleration data is collected. A mobile motion analysis apparatus according to any one of the first to eleventh aspects to be controlled is provided.

The invention of the thirteenth aspect is
The mobile motion analysis apparatus according to the twelfth aspect, wherein the display control unit controls the display unit so as to display a position on the display of acceleration data at the same time as the playback time of the moving image.

The invention of the fourteenth aspect is
The display control means provides the mobile motion analysis device according to any one of the first to thirteenth aspects, wherein the display unit is controlled to display a graph representing a time change of the acceleration. .

The invention of the fifteenth aspect is
The specifying means specifies acceleration data for accelerations in different first and second directions;
The display control means controls the display unit to display a map representing a histogram of accelerations in the first direction and the second direction at the same time. Any one of the first to thirteenth aspects. Provided is a moving motion analysis apparatus of three viewpoints.

The invention of the sixteenth aspect is
The specifying means specifies acceleration data for accelerations in different first and second directions;
The display control means controls the display unit so as to display a map representing a locus of acceleration in the first direction and the second direction at the same time. Any one of the first to thirteenth aspects. Provided is a moving motion analysis apparatus of three viewpoints.

The invention of the seventeenth aspect is
The mobile motion analysis device according to any one of the first to sixteenth aspects is provided, wherein the mobile motion is walking.

The invention of the eighteenth aspect is
Collecting acceleration data representing acceleration at each time during the movement of the person using an acceleration sensor attached to the person;
A storage step of storing a time corresponding to a desired timing as a time of interest during the movement of the person from which the acceleration data is collected;
A display control step for controlling the display unit to display the collected acceleration data in a predetermined display form and to display a position on the display of acceleration data at the time of interest and / or a time around the time of interest. And a moving motion analysis method comprising:

The invention of the nineteenth aspect is
An acceleration sensor attached to a person,
Collecting means for collecting acceleration data representing acceleration at each time during the movement of the person using the acceleration sensor;
Storage means for storing a time corresponding to a desired timing as a time of interest during the movement of the person from which the acceleration data is collected;
Display control means for controlling the display unit to display the collected acceleration data in a predetermined display form and to display a position on the display of the acceleration data at the time of interest and / or a time around the time of interest. And a moving motion analysis system comprising:

The invention of the twentieth aspect is
A program for causing a computer to function as the mobile motion analysis apparatus according to any one of the first to seventeenth aspects is provided.

  Here, “displaying the position on the display of acceleration data” means displaying in such a form that the position can be recognized by the operator, for example, displaying a mark indicating the position, This includes displaying the position in a different color or pattern from the other positions. Further, “displaying the range on the display of acceleration data” means displaying the range in a form that can be recognized by the operator. For example, a mark indicating the range is displayed, or the range is displayed. Display in a different color or pattern from other ranges. In addition, “type of interest time” is displayed when information on the type of interest time is displayed in association with the position or range on the display of acceleration data at the interest time. Display with a color, pattern, shape, or the like corresponding to the type.

  According to the invention of the above aspect, it is possible to objectively and efficiently evaluate a person's movement.

It is a figure showing roughly composition of a walk analysis system. It is a figure which shows the structure of the hardware of the acceleration sensor module and walk analysis apparatus which concern on 1st embodiment. It is a functional block diagram which shows the functional structure of the acceleration sensor module and walking analysis apparatus which concern on 1st embodiment. It is a functional block diagram which shows the functional structure of an acceleration data analysis part. It is a flowchart which shows the flow of a process in the walk analysis system which concerns on 1st embodiment. It is a figure which shows the example of a display of the screen for data acquisition which concerns on 1st embodiment. It is a figure which shows the example of a display of the screen for data analysis which concerns on 1st embodiment (the 1). It is a figure which shows the example of a display of the screen for data analysis which concerns on 1st embodiment (the 2). It is a figure which shows the example of a display of the screen for data analysis which concerns on 1st embodiment (the 3). It is a figure which shows the example of a display of the screen for data analysis which concerns on 1st embodiment (the 4). It is a figure which shows the example of a display of the screen for data analysis which concerns on 1st embodiment (the 5). It is a figure which shows the example of a display of the screen for data analysis which concerns on 1st embodiment (the 6). It is a figure which shows the structure of the hardware of the acceleration sensor module 2 and the walk analysis apparatus 3 which concern on 2nd embodiment. It is a functional block diagram which shows the functional structure of the acceleration sensor module 2 and the walk analysis apparatus 3 which concern on 2nd embodiment. It is a flowchart which shows the flow of a process in the walk analysis system 1 which concerns on 2nd embodiment. It is a figure which shows the example of a display of the screen for data acquisition which concerns on 2nd embodiment. It is a figure which shows the example of a display of the screen for data analysis which concerns on 2nd embodiment (the 1). It is a figure which shows the example of a display of the screen for data analysis which concerns on 2nd embodiment (the 2). It is a figure which shows the example of a display of the screen for data analysis which concerns on 2nd embodiment (the 3). It is a figure which shows the example of a display of the screen for data analysis which concerns on 2nd embodiment (the 4). It is a flowchart which shows an example of the flow of a process in the walk analysis system 1 of this modification in 1st embodiment. It is a figure for demonstrating the example of a setting of time stamp automatic input conditions.

  Embodiments of the invention will be described below. The invention is not limited thereby.

  FIG. 1 is a diagram schematically showing a configuration of a gait analysis system (system) 1. The gait analysis system 1 is an example of the movement analysis system in the invention.

  The walking analysis system 1 includes an acceleration sensor module 2 and a walking analysis device 3 as shown in FIG. The acceleration sensor module 2 is attached to the center of the lower back of the patient 10 using an adhesive pad or a band. The walking analysis device 3 is used by the operator 11 to carry or operate. The walking analysis device 3 is an example of the mobile motion analysis device in the invention.

(First embodiment)
FIG. 2 is a diagram illustrating a hardware configuration of the acceleration sensor module 2 and the gait analyzer 3 according to the first embodiment.

  As shown in FIG. 2, the acceleration sensor module 2 includes a processor 21, an acceleration sensor 22, a memory 23, a communication I / F (interface) 24, and a battery 25. doing. The gait analysis device 3 is a computer terminal such as a smart phone, a tablet computer, or a notebook PC, and includes a processor 31, a display 32, an operation unit 33, and the like. , A memory 34, a communication I / F 35, and a battery 36. In this example, the walking analysis device 3 is a smartphone. Note that the processor 21 and the processor 31 are not limited to a single processor, but may be a plurality of processors.

  FIG. 3 is a functional block diagram showing functional configurations of the acceleration sensor module 2 and the walking analysis device 3 according to the first embodiment.

  As shown in FIG. 3, the acceleration sensor module 2 includes an acceleration sensor unit 201, a sampling unit 202, and a transmission unit 203. The sampling unit 202 and the transmission unit 203 are realized by the processor 21 reading out and executing a predetermined program stored in the memory 23.

  The acceleration sensor unit 201 outputs an analog signal corresponding to the acceleration component in almost real time with respect to the acceleration component in each of the x, y, and z axes in the three-dimensional orthogonal coordinate system based on the sensor body. Output to.

The sampling unit 202 samples the analog signal at a predetermined sampling frequency and converts it into digital acceleration data. The sampling frequency is, for example, 128 Hz. The sampling unit 202 outputs acceleration data at a scale where, for example, 1 g (gravitational acceleration) = 9.8 m / s ² = acceleration data value 128. Here, the positive and negative acceleration components are positive on the right side, on the front side, and on the upper side.

  The transmission unit 203 wirelessly transmits the acceleration data representing the sampled acceleration component at each time in almost real time.

  In this example, in the acceleration sensor module 2, the x-axis direction, the y-axis direction, and the z-axis direction of the sensor body are the RL (Right-Left) direction, AP (Anterior-Posterior) direction, and SI of the patient 10, respectively. (Superior-Inferior) It is attached to match the direction. The RL direction, the AP direction, and the SI direction are also referred to as a sagittal direction, a coronal direction, and an axial direction, respectively. In this example, it is assumed that the posture (inclination and orientation) of the acceleration sensor module 2 does not change during walking of the patient 10.

  As shown in FIG. 3, the gait analysis device 3 includes an operation unit 301, a display unit 302, a patient information reception unit 303, a reception unit 304, an acceleration data acquisition control unit 305, and a time stamp input. A control unit 306, a data analysis unit 307, a clock unit 308, a display control unit 309, a storage unit 310, and an overall control unit 311 are included. The patient information reception unit 303, the acceleration data acquisition control unit 305, the time stamp input control unit 306, the data analysis unit 307, the clock unit 308, the display control unit 309, and the overall control unit 311 are stored in the memory 34 in the processor 31. This is realized by reading and executing a predetermined program. The acceleration data acquisition control unit 305 is an example of a collecting unit in the invention. The time stamp input control unit 306 is an example of a storage unit in the invention. The data analysis unit 307 and the display control unit 309 are examples of display control means in the invention.

  The operation unit 301 receives an operation of the operator 11. The operation unit 301 includes, for example, a touch panel, a touch pad, a keyboard, a mouse, and the like. The operator 11 is an instructor such as a doctor or a physical therapist, for example.

  The display unit 302 displays an image. The display unit 302 is configured by, for example, a liquid crystal panel, an organic EL panel, or the like.

  The clock unit 308 has a clock function and outputs information representing time. The time may be relative to a certain timing.

  The patient information accepting unit 303 accepts input of patient information and causes the storage unit 312 to store the input patient information.

  The reception unit 304 wirelessly receives the acceleration data transmitted from the transmission unit 203 of the acceleration sensor module 2. Note that standards such as Bluetooth (registered trademark) can be used for wireless communication between the transmission unit 203 and the reception unit 304, for example.

  The acceleration data acquisition control unit 305 controls the reception unit 304 and the storage unit 312 to acquire the acceleration data of the patient 10. The acceleration data acquisition control unit 305 collects acceleration data at each time from the start to the end of data collection. The acceleration data is accompanied by time information when the data was acquired. The time is specified based on the output of the clock unit 308.

  The time stamp input control unit 306 performs control to accept time stamp input at a timing desired by the operator 11 during data collection. Here, the input of the time stamp is a so-called stamping. In the case of this example, the operator 11 performs a predetermined operation during the data collection period. In response to the operation, the time stamp input control unit 306 stores the time when the operation is performed as the interest time ti. The time stamp can be input any number of times as long as data is being collected. The time is specified based on the output of the clock unit 308.

  The data analysis unit 307 analyzes the collected acceleration data and outputs the analysis result. In this example, at this time, the interest time ti represented by the input time stamp is matched with the acquisition time of the acceleration data, and the acceleration data acquired at the interest time ti and the surrounding time are specified. Details of the data analysis unit 307 will be described later.

  The display control unit 309 displays the collected acceleration data on the screen of the display unit 302 in a predetermined display form, and displays acceleration data at least one of the interest time ti and the surrounding time represented by the input time stamp. The display unit 302 is controlled so that the position on the display is recognizable. In this example, the analysis result of acceleration data is displayed.

  The storage unit 310 stores input patient information, collected acceleration data, a time of interest ti represented by a time stamp, an analysis result of acceleration data, and the like. These pieces of information are stored in a database 41 connected to the gait analysis device 3 via a LAN (Local Area Network) or the Internet (Internet), an external storage medium 42, or the like as necessary. The Examples of the storage medium 42 include a DVD-ROM and a memory card.

  The overall control unit 311 comprehensively controls each unit constituting the walking analysis apparatus 3. In this example, the overall control unit 311 performs switching control of the operation mode of the gait analysis device 3 according to the operation of the operator 11 as one function.

  Here, details of the data analysis unit 307 will be described. The acceleration data analysis unit 307 performs analysis processing on the collected acceleration data and outputs the analysis result. A plurality of analysis processes are prepared. The acceleration data analysis unit 307 executes analysis processing specified by the operator 11. In this example, as an analysis process to be executed, an acceleration component in a predetermined direction at each time is specified based on the collected acceleration data, and an acceleration waveform graph showing a time change of the acceleration component or 2 acquired at the same time. Data representing a two-dimensional map or the like based on a direction acceleration component is generated. At this time, in these graphs and two-dimensional maps, data representing the time of interest ti represented by the input time stamp and the mark indicating the display position of the acceleration data at that time are also generated.

  FIG. 4 is a functional block diagram showing a functional configuration of the acceleration data analysis unit 307. The data analysis unit 307 includes an acceleration component specifying unit 71, a time-of-interest matching processing unit 72, and a graph / map generation unit 73, as shown in FIG.

The acceleration component specifying unit 71 specifies acceleration components a _x , a _y , a _z in the left-right direction, the front-rear direction, and the vertical direction of the patient 10 at each sampling time of the data collection period based on the collected acceleration data. . In this example, it is assumed that these acceleration components a _x , a _y , and a _z are calculated and specified as acceleration components generated by pure motion of the patient 10 by removing the gravitational acceleration g component. However, it may be specified more simply in a form including the component of gravitational acceleration g. Further, the horizontal direction, the front-rear direction, and the vertical direction are assumed to be a horizontal left-right direction, a horizontal traveling direction, and a vertical direction, respectively. However, the x-axis direction, the y-axis direction, and the z-axis direction based on the sensor body of the acceleration sensor module 2 may be more simply used.

  The interest time matching processing unit 72 matches the interest time ti represented by the input time stamp with the acquisition time of the acceleration data, and associates the interest time ti with the acceleration data acquired at the interest time ti. To do.

  The graph / map generator 73 generates data of an acceleration waveform graph G1 representing the temporal change of the specified acceleration component in each direction. In addition, the graph / map generator 73 generates two-dimensional map data represented by plotting acceleration components in two directions acquired at the same time. As a two-dimensional map, for example, in a two-dimensional coordinate system having two axes of a lateral acceleration component ax and a longitudinal acceleration component ay, the acceleration component in the two directions at each time is plotted and the locus is drawn. A two-dimensional trajectory map M1 can be considered. Further, for example, in the same two-dimensional coordinate system, a two-dimensional histogram map M2 can be considered in which acceleration components in the two directions at each time are plotted and the frequency of the plot is shown for each coordinate. Further, the graph / map generator 73 displays the acceleration data at the time of interest ti represented by the time stamp for each input time stamp in the acceleration waveform graph G1, the two-dimensional trajectory map M1, and the two-dimensional histogram M2. Data of a time stamp mark Ti indicating the upper position is generated.

  Hereafter, the flow of processing in the walking analysis system 1 according to the first embodiment will be described.

  FIG. 5 is a flow diagram showing a processing flow in the walking analysis system 1 according to the first embodiment.

  In step S0, the acceleration sensor module 2 is attached to the waist of the patient 10 as a preparation stage.

  In step S1, patient information input is accepted.

  Specifically, the operator 11 operates the operation unit 301 of the gait analyzer 3 and directly inputs patient information of the patient 10. The patient information receiving unit 303 stores the directly input patient information in the storage unit 312. The patient information includes, for example, the patient ID number, name, age, sex, date of birth, and the like. It should be noted that acceleration data of the patient 10 to be described later, an analysis result of the acceleration data, and the like are stored in the storage unit 312 in association with the patient information.

  In step S2, the data acquisition mode is selected as the operation mode.

  Specifically, the operator 11 performs an operation of selecting the data acquisition mode as the operation mode. The overall control unit 311 sets the operation mode to the data acquisition mode according to the operation. The acceleration data acquisition control unit 305 causes the receiving unit 304 to start receiving acceleration data. Then, the display control unit 310 causes the display unit 302 to display a data acquisition screen.

  FIG. 6 is a diagram illustrating a display example of the data acquisition screen according to the first embodiment.

  Here, the data acquisition screen N11 as shown in FIG. The data acquisition screen N11 includes an acceleration waveform display window W1, a data collection start / end button B1, and a time stamp button B2.

  The acceleration waveform display window W1 displays acceleration components in three directions, left, right, front, back, and top, which are specified based on the acceleration data received by the receiving unit 304. The acceleration data acquisition control unit 305 displays the acceleration component represented by the received acceleration data in this window almost in real time regardless of whether data is being collected or not.

  The data collection start / end button B1 is a button used when the operator 11 instructs the start and end of data collection. When the acceleration data acquisition control unit 305 recognizes that this button has been tapped when data collection is not being performed, it starts data collection in response thereto. In addition, when the acceleration data acquisition control unit 305 recognizes that this button has been tapped during data collection, it ends data collection in response thereto.

  The time stamp button B2 is a button used when the operator 11 instructs to input a time stamp. When the time stamp input control unit 306 recognizes that this button has been tapped during data collection, the time stamp input control unit 306 stores the time at that time as the interest time ti.

  In step S3, acceleration data collection is started.

Specifically, the operator 11 taps the data collection start / end button B1. In response to this operation, the acceleration data acquisition control unit 305 starts processing for storing the received acceleration data in the storage unit 312. Next, the operator 11 causes the patient 10 to walk for a while at the patient's own standard walking speed. Walking is usually about 5 to 20 m in distance, about 20 seconds to 3 minutes in time, and about 10 to 40 steps in number of steps. Based on the output of the acceleration sensor unit 201, the sampling unit 202 of the acceleration sensor module 2 calculates acceleration components A _x , A _y , and A _z in the x-axis direction, the y-axis direction, and the z-axis direction during walking of the patient 10. Sampling and measuring. The transmission unit 203 of the acceleration sensor module 2 transmits acceleration data representing the measured acceleration component almost in real time. During this time, the receiving unit 304 sequentially receives the acceleration data transmitted from the transmitting unit 203, and the storage unit 312 stores the received acceleration data in association with the time at that time.

  In step S4, input of a time stamp is accepted.

  Specifically, when the time stamp input control unit 306 recognizes that the time stamp button B2 is tapped during data collection, the time stamp input unit 306 stores the time at that time in the storage unit 312 as the time of interest ti. For example, the operator 11 taps this button and inputs a time stamp so that an acceleration waveform at that time can be easily found later when the patient 10 performs an action that the patient 10 cares about. Note that when the time stamp is input, the time stamp input control unit 306 may emit a signal sound or vibration for notifying that. Thereby, the operator 11 can confirm that the input of the time stamp has been performed reliably without looking at the display unit or the like.

  In step S5, the collection of acceleration data is terminated.

  Specifically, the operator 11 has the patient 10 finish walking. Next, the operator 11 taps the data collection start / end button B1. In response to this operation, the acceleration data acquisition control unit 305 ends the process of storing the acceleration data in the storage unit 312.

  In step S6, the data analysis mode is selected as the operation mode.

  Specifically, the operator 11 performs an operation of selecting the data analysis mode as the operation mode. The overall control unit 311 sets the operation mode to the data analysis mode according to the operation. The acceleration data acquisition control unit 305 causes the receiving unit 304 to finish receiving the acceleration data.

In step S7, acceleration components a _x , a _y , and a _z in the left-right direction, the front-rear direction, and the vertical direction of the patient 10 at each sampling time are specified.

  Specifically, the acceleration component specifying unit 71 specifies acceleration components in the left-right direction, the front-rear direction, and the up-down direction of the patient 10 at each sampling time of the data collection period based on the collected acceleration data.

  In step S8, the interest time ti represented by the input time stamp is matched with the data acquisition time, and the interest time matching processing unit 72 calculates the interest time ti represented by the input time stamp and the acceleration data acquisition time. Matching is performed to associate the interest time ti with the acceleration data acquired at the interest time ti.

  In step S9, a graph / map or the like is generated.

  Specifically, the graph / map generation unit 73 generates data of an acceleration waveform graph G1 representing the temporal change of the specified acceleration component in each direction. In addition, the graph / map generator 73 generates two-dimensional map data represented by plotting acceleration components in two directions acquired at the same time. In this example, a two-dimensional histogram map M1 and a two-dimensional trajectory map M2 are considered as the two-dimensional map. The two-dimensional histogram map M1 is, for example, a two-dimensional coordinate system having two axes of predetermined two-direction acceleration components, for example, a left-right acceleration component ax and a front-rear acceleration component ay. It is a map which plots an acceleration component and represents the frequency of the plot for every coordinate. The two-dimensional trajectory map M2 is, for example, a map in which the trajectory of plotted points is plotted by plotting acceleration components in the two directions at each time in the same two-dimensional coordinate system. Further, the graph / map generator 73 generates acceleration data (acceleration component) at the time of interest ti represented by the time stamp for each input time stamp in the graph G1, the two-dimensional histogram map M1, and the two-dimensional trajectory map M2. ) Of the time stamp mark Ti indicating the position on the display.

  In step S10, the generated graph map is displayed.

  Specifically, the display control unit 310 causes the display unit 302 to display a data analysis screen.

  7 to 12 are diagrams illustrating display examples of the data analysis screen according to the first embodiment.

  Here, a data analysis screen N12 as shown in FIGS. The data analysis screen N12 includes an acceleration waveform graph G1, a two-dimensional histogram map M1, a two-dimensional trajectory map M2, a time stamp mark Ti, and the like. The data analysis screen is displayed using a plurality of pages. 7 to 12 are examples in the case where the time stamp is input twice at intervals during data collection.

  On the first page of the data analysis screen N12, an acceleration waveform display window W1 is displayed as shown in FIG. The acceleration waveform display window W1 displays an acceleration waveform graph G1 representing temporal changes in acceleration components in the left, right, front, rear, and upper and lower directions for a time zone corresponding to at least a part of the data collection period. On the acceleration waveform graph G1, there are a first time stamp mark T1 indicating the time when the first time stamp is input and a second time stamp mark T2 indicating the time when the second time stamp is input. , Is displayed along with the time. The time displayed here is converted into an elapsed time from the start of acceleration data collection. Initially, the acceleration waveform graph G1 is displayed for the entire data collection period. In this state, when the operator 11 taps a desired location on the acceleration waveform graph G1, a graph around the tapped location is enlarged and displayed in the time axis direction. When a time stamp mark is selected by tapping, only the graph around the time stamp mark is cut out and displayed enlarged in the time axis direction. For example, when the first time stamp mark T1 is tapped, a graph around the first time stamp mark T1 is enlarged as shown in FIG. When the operator 11 swipes the graph on the touch panel, the time zone TB of the displayed graph is shifted, and the graph flows in the swipe direction. When the first page of the data analysis screen N12 is displayed, if the operator 11 swipes a place other than a graph to the left on the touch panel, the screen moves to the next second page.

  On the second page of the data analysis screen N12, a two-dimensional histogram map M1 is displayed as shown in FIG. On the two-dimensional histogram map M1, the first time stamp mark T1 indicating the position on the display of acceleration data at the time when the first time stamp is input, and the acceleration at the time when the second time stamp is input. A second time stamp mark T2 indicating the position on the data display is displayed together with the time. Initially, only the two-dimensional histogram map M1 is displayed. In this state, when the operator 11 taps the time stamp mark, a partial acceleration waveform graph G1 ′ in the time zone around the time of interest ti corresponding to the tapped time stamp mark is additionally displayed. For example, when the first stamp mark T1 in the two-dimensional histogram map M1 is tapped, as shown in FIG. 10, a partial acceleration waveform graph G1 in the time zone around the time of interest t1 corresponding to the first time stamp mark. 'Is displayed. This time zone has a time width corresponding to, for example, about ± 2 to 10 seconds with respect to the interest time t1, or about ± 2 to 10 steps with respect to the interest time t1. If the time width is defined by the number of steps, an appropriate range can be selected and cut out as an observation range regardless of the walking speed of the patient 10. The number of steps can be counted by counting the peak of the acceleration waveform. If the operator 11 swipes left on the touch panel while the second page of the data analysis screen N12 is displayed, the screen moves to the next third page. Swipe right to go back to the first page.

  On the third page of the data analysis screen N12, a two-dimensional trajectory map M2 is displayed as shown in FIG. On the two-dimensional trajectory map M2, the first time stamp mark T1 indicating the position on the display of acceleration data at the time when the first time stamp is input, and the acceleration at the time when the second time stamp is input. A second time stamp mark T2 indicating the position on the data display is displayed together with the time. Initially, only the two-dimensional trajectory map M2 is displayed. In this state, when the operator 11 taps the time stamp mark, a partial acceleration waveform graph G1 ′ in the time zone around the time of interest ti corresponding to the tapped time stamp mark is additionally displayed. For example, when the first stamp mark T1 in the two-dimensional trajectory map M2 is tapped, as shown in FIG. 12, a partial acceleration waveform graph G1 in the time zone around the time of interest ti corresponding to the first time stamp mark. 'Is displayed. On the two-dimensional trajectory map M2, the partial trajectory corresponding to this time zone is highlighted with the line color and thickness changed.

  On the two-dimensional trajectory map M2, a first plot mark P1 is displayed at the plot position of the acceleration component corresponding to the attention time A in the above time zone. On the partial acceleration waveform graph G1 ′, the second to fourth plot marks P2 to P4 are located at the acceleration component plot positions corresponding to the same time of interest A for each of the left, right, front and rear acceleration component waveforms. Is displayed. On the partial acceleration waveform graph G1 ′, a cursor C indicating the attention time A is further displayed. The operator 11 can move the cursor C manually or automatically, and can change the attention time A accordingly. The first to fourth plot marks P1 to P4 move in conjunction with the change in the attention time A.

  According to such a first embodiment, a desired interest time ti in which the operator 11 is interested during acceleration data collection is stored by inputting a time stamp, and the acceleration waveform graph G1 or two-dimensional map M1 of the patient 10 is stored. , M2 and the like indicate the position corresponding to the acceleration component acquired at the time of interest ti, so that the visual evaluation and the analysis result of the acceleration data can be easily synchronized on the same time axis. . Thereby, for example, the operator 11 concentrates on visual observation while collecting acceleration data, and inputs a time stamp when there is an action of interest of the patient 10, so that the visual evaluation and acceleration data are completed after walking. The analysis result can be easily synchronized on the time axis. Further, the operator 11 can confirm the information and analysis results of the acceleration related to the motion of the patient 10 who is interested without searching. Moreover, the synergistic effect between the visual evaluation and the analysis result of the acceleration data is further enhanced to enable the creation of a high-quality rehabilitation plan. Overall, an objective and efficient evaluation in the walking motion of the patient 10 becomes possible.

  Further, according to the first embodiment, the position corresponding to the acceleration component acquired at the time of interest ti in the two-dimensional map of the acceleration of the patient 10 is associated with the acceleration waveform when the acceleration component is obtained. Therefore, it is possible to evaluate the actions that the patient 10 is interested in from various aspects.

  Further, according to the first embodiment, the acceleration component plot mark P1 acquired at the attention time around the time of interest ti in the two-dimensional trajectory map M2 of the patient 10 acceleration and the acceleration waveform graph G1 at the same attention time. Since the acquired acceleration component plot marks P <b> 2 to P <b> 4 are displayed in conjunction with each other, it is possible to easily imagine what operation the patient 10 was performing around the time of interest ti.

(Second embodiment)
FIG. 13 is a diagram illustrating a hardware configuration of the acceleration sensor module 2 and the walking analysis device 3 according to the second embodiment. The difference from the first embodiment is that the walking analysis device 3 further includes a camera 37. The camera 37 is, for example, a digital camera built in a smartphone.

  FIG. 14 is a functional block diagram illustrating functional configurations of the acceleration sensor module 2 and the walking analysis device 3 according to the second embodiment. The difference from the first embodiment is that the walking analysis device 3 further includes an imaging unit 312 and a moving image data acquisition control unit 313. The imaging unit 312 and the moving image data acquisition control unit 313 are an example of a recording unit in the invention.

  The imaging unit 312 images the subject, here the patient 10, and outputs the image data or moving image data.

  The moving image data acquisition control unit 313 controls the imaging unit 312 to acquire moving image data of the walking patient 10 in synchronization with the collection of acceleration data. The moving image data acquisition control unit 313 collects frame data (image data constituting the moving image) at each time from the start to the end of data collection. Frame data means image data constituting a moving image. The frame data is accompanied by time information when the data was acquired. The time is specified based on the output of the clock unit 308.

  In particular, the data analysis unit 307 performs matching between the interest time ti represented by the input time stamp and the acquisition time of the acceleration data and the frame data by the interest time matching processing unit 72, and obtains it at the same time as the interest time ti. Specified acceleration data and frame data are specified. Then, the specific information is reflected in the analysis result of the acceleration data, and the specific information is reflected in the moving image data.

  The display control unit 310 controls the display unit 302 to display the analysis result of the acceleration data and the moving image represented by the moving image data.

  The storage unit 312 stores moving image data in addition to analysis results such as input patient information, collected acceleration data, a time of interest ti represented by a time stamp, and a graph / map of acceleration data.

  Hereafter, the flow of processing in the walking analysis system 1 according to the second embodiment will be described.

  FIG. 15 is a flowchart showing the flow of processing in the walking analysis system 1 according to the second embodiment.

  In step A0, the acceleration sensor module 2 is attached to the waist of the patient 10 as a preparation stage.

  In step A1, patient information input is accepted.

  In step A2, the data acquisition mode is selected as the operation mode. Here, the display control unit 310 causes the display unit 302 to display a data acquisition screen.

  FIG. 16 is a diagram illustrating a display example of the data acquisition screen according to the second embodiment.

  Here, a data acquisition screen N 21 as shown in FIG. 16 is displayed on the display unit 302. The data acquisition screen N21 includes an acceleration waveform display window W1, a moving image display window W2, a data collection start / end button B1, and a time stamp button B2.

  The moving image display window W2 displays a moving image or a frame image based on the frame data output by the imaging unit 37. The moving image data acquisition control unit 308 displays the moving image F1 or the frame image f1 represented by the frame data output from the imaging unit 37 in this window almost in real time regardless of whether data is being collected.

  The acceleration waveform display window W1, the data collection start / end button B1, and the time stamp button B2 have the same functions as in the first embodiment.

  In step A3, collection of acceleration data and moving image data is started.

  Specifically, first, the operator 11 aligns the orientation of the imaging unit 37 with the patient 10 so that the patient 10 can be imaged. Next, the operator 11 taps the data collection start / end button B1. In response to this operation, the acceleration data acquisition control unit 305 starts processing for storing the acceleration data received by the receiving unit 304 in the storage unit 312. Further, in response to this operation, the moving image data acquisition control unit 308 starts processing for storing the frame data output from the imaging unit 37 in the storage unit 312. Next, the operator 11 causes the patient 10 to walk for a while at the patient's own standard walking speed. The storage unit 312 stores the acceleration data and the frame data in association with the time when they are obtained.

  In step A4, input of a time stamp is accepted.

  Specifically, when the time stamp input control unit 306 recognizes that the time stamp button B2 has been tapped by the operator 11 during data collection, the time at that time is stored in the storage unit 312 as the interest time ti. Let

  In step A5, the collection of acceleration data and moving image data is terminated.

  Specifically, the operator 11 has the patient 10 stop walking. Next, the operator 11 taps the data collection start / end button B1. In response to this operation, the acceleration data acquisition control unit 305 ends the process of storing the acceleration data in the storage unit 312. Further, in response to this operation, the moving image data acquisition control unit 308 ends the process of storing the frame data in the storage unit 312.

  In step A6, the data analysis mode is selected as the operation mode.

  Specifically, the operator 11 performs an operation of selecting the data analysis mode as the operation mode. The overall control unit 311 sets the operation mode to the analysis mode according to the operation. The acceleration data acquisition control unit 305 causes the receiving unit 304 to finish receiving the acceleration data. In addition, the moving image data acquisition control unit 308 causes the imaging unit 313 to finish outputting the frame data.

In Step A7, based on the collected acceleration data, acceleration components a _x , a _y , and a _z in the left-right direction, the front-rear direction, and the vertical direction of the patient 10 at each sampling time are specified.

  In step A8, the interested time matching processing unit 72 performs matching between the interested time ti represented by the input time stamp and the acquisition time of acceleration data and frame data. Then, the interest time ti is associated with the acceleration data and the frame data acquired at the interest time ti.

  In step A9, a graph / map is generated.

  Specifically, the graph / map generator 73 generates data of the acceleration waveform graph G1, the two-dimensional histogram map M1, and the two-dimensional trajectory map M2. Further, the graph / map generation unit 73, for each of the input time stamps in the acceleration waveform graph G1, the two-dimensional histogram map M1, and the two-dimensional trajectory map M2, the acceleration data at the time of interest ti represented by the time stamp. Data of the time stamp mark Ti indicating the position on the display is generated. In addition, the graph / map generation unit 73 generates control bar data of the moving image F1 based on the collected moving image data. The control bar CB includes a playback / stop button and a time axis slider bar SB representing the time axis t and the playback time tp. In the time axis slider bar SB, the graph / map generation unit 73 generates data of a time stamp mark Ti indicating the position of the time of interest ti represented by the time stamp for each time stamp input.

  In step A10, the generated graph / map and the recorded moving image are displayed.

  Specifically, the display control unit 310 causes the display unit 302 to display a data analysis screen.

  17 to 20 are diagrams illustrating display examples of a data analysis screen according to the second embodiment.

  In this case, the data analysis screen N22 as shown in FIGS. The data analysis screen N22 includes an acceleration waveform graph G1, a two-dimensional histogram map M1, a two-dimensional trajectory map M2, a moving image F1, a control bar CB, a time stamp mark Ti, and the like. The data analysis screen N22 is displayed using a plurality of pages. FIGS. 17 to 20 are examples when the time stamp is input twice at intervals during data collection.

  On the first page of the data analysis screen N22, as shown in FIG. 17, an acceleration waveform display window W1, a moving image display window W2, and a control bar CB are displayed. The acceleration waveform display window W1 displays an acceleration waveform graph G1 in three directions of left and right, front and rear, and up and down for a time zone TB corresponding to at least a part of the data collection period. The moving image display window W2 displays the moving image F1 of the patient 10 based on the collected moving image data for the same time zone TB. The control bar CB includes a playback / stop button B3 for the moving image F1, and a time axis slider bar SB representing the time axis of the time zone TB and the playback time tp therein.

  In the acceleration waveform graph G1, the first time stamp mark T1 indicating the position on the display of the acceleration data at the time when the first time stamp is input, and the acceleration data at the time when the second time stamp is input. A second time stamp mark T2 indicating the position on the display is attached together with the time. The time displayed here is converted into an elapsed time since the start of collection of acceleration data and frame data.

  In the moving image display window W2, a frame image corresponding to the reproduction time tp is displayed. On the acceleration waveform graph G1, second to fourth plot marks P2 to P4 are displayed at the acceleration component plot positions corresponding to the same reproduction time tp for the waveforms of the acceleration components in the three directions. On the acceleration waveform graph G1, a cursor C indicating the position of the reproduction time tp is further displayed. The operator 11 can play / stop the moving image F1 by pressing the play / stop button B3, or manually move and play the moving image F1 by dragging and moving the slider of the time axis slider bar SB. The frame image of the moving image F1 and the positions of the first to fourth plot marks P1 to P4 are updated in conjunction with the change in the reproduction time tp. When the moving image F1 is reproduced, the cursor C also moves in accordance with the slider, and the first to fourth plot marks P1 to P4 move along a line representing the acceleration waveform.

  The acceleration waveform graph G1 is initially displayed for the entire data collection period. In this state, when the operator 11 taps a desired location on the acceleration waveform graph G1, the time zone TB represented by the time axis slider bar SB is changed to a time zone around the tapped location. As a result, the acceleration waveform graph G1 is displayed with the partial acceleration waveform graph G1 ′ around the tapped location enlarged in the time axis direction. For example, when the vicinity of the first time stamp mark T1 is tapped, as shown in FIG. 18, the time zone of the time axis slider bar is a predetermined center around the time of interest t1 corresponding to the first time stamp mark T1. The time zone is changed. This time zone has a time width corresponding to, for example, about ± 2 to 10 seconds with respect to the interest time t1, or about ± 2 to 10 steps with respect to the interest time t1. By changing the time zone, the graph around the first time stamp mark T1 is enlarged and displayed. If the operator 11 swipes leftward at a place other than the acceleration waveform display window W1 or the moving image display window W2 on the touch panel while the first page is displayed, the screen moves to the next second page.

  On the second page of the data analysis screen N22, a two-dimensional histogram map M1 is displayed as shown in FIG. In the two-dimensional histogram map M1, a first time stamp mark T1 corresponding to the first time stamp and a second time stamp mark T2 corresponding to the second time stamp are displayed together with the time. Yes. Initially, only the two-dimensional histogram map M1 is displayed. In this state, when the operator 11 taps the time stamp mark, the moving image display window W2 and the control bar CB are additionally displayed. The moving image display window W2 displays a partial moving image F1 ′ in the time zone TB around the time of interest ti corresponding to the tapped time stamp mark in response to an operation on the control bar CB. For example, when the first stamp mark T1 in the two-dimensional histogram map M1 is tapped, the moving image display window W2 is opened and the control bar CB is displayed as shown in FIG. Then, according to the operation on the control bar CB, a partial moving image F1 ′ in the time zone TB around the time of interest t1 corresponding to the first time stamp mark is displayed. Further, the time axis slider bar SB included in the control bar CB is provided with the first time stamp mark T1 at the position of the interest time t1 represented by the first time stamp. The operator 11 can confirm what kind of walking motion the patient 10 was performing around the time when the first time stamp was input by looking at these displays.

  If the operator 11 swipes left on the touch panel while the second page of the data analysis screen N22 is displayed, the screen moves to the next third page. Swipe right to go back to the first page.

  On the third page of the data analysis screen N22, a two-dimensional trajectory map M2 is displayed as shown in FIG. In the two-dimensional trajectory map M2, a first time stamp mark T1 corresponding to the first time stamp and a second time stamp mark T2 corresponding to the second time stamp are attached together with the time. . Initially, only the two-dimensional trajectory map M2 is displayed. In this state, when the operator 11 taps the time stamp mark, the moving image display window W2 and the control bar CB are additionally displayed. The moving image display window W2 displays a partial moving image in the time zone TB around the time of interest ti corresponding to the tapped time stamp mark in response to an operation on the control bar CB. For example, when the first time stamp mark T1 in the two-dimensional trajectory map M2 is tapped, the moving image display window W2 is opened and the control bar CB is displayed as shown in FIG. Then, in accordance with the operation on the control bar CB, a partial moving image F1 ′ in the time zone TB around the time of interest t1 represented by the first time stamp is displayed. A first time stamp mark T1 is attached to the time axis slider bar SB at the position of the time of interest t1 represented by the first time stamp. The operator 11 can confirm what kind of walking motion the patient 10 was performing around the time when the first time stamp was input by looking at these displays.

  According to the second embodiment, the time stamp can be associated with both the acceleration analysis result and the moving image. As a result, the operator 11 can confirm the walking of the patient 10 in the time zone around the time of interest ti represented by the time stamp not only with acceleration but also with a moving image, and the actual movement of the attention of the patient 10 can be confirmed. More specifically, it can be grasped with high accuracy. Accordingly, the operator 11 can reproduce and observe only the moving image of the portion of interest without reproducing and confirming all the captured moving images. That is, the operator 11 can easily reach the acceleration and the moving image near the time of interest represented by the time stamp, and can improve the walking evaluation workflow.

  Further, such a partial moving image can be cut out and viewed only by an operation of selecting a time stamp mark from a two-dimensional map of acceleration, and the operability is good.

(First modification)
In the first and second embodiments, the time stamp may be input automatically by setting a desired condition in advance.

  As conditions for automatically inputting the time stamp, for example, the following can be considered. (1) Acceleration exceeding the specified value was detected, (2) A specific acceleration change pattern was detected, (3) Acceleration deviating from the previous averaged velocity distribution at the time of the previous gait evaluation , Etc.

  For example, the time stamp input control unit 306 controls to input a time stamp representing the time in response to acquisition of acceleration data representing a predetermined value or waveform during collection of acceleration data. Further, for example, after collecting acceleration data, a search is performed for a time when acceleration data representing a predetermined value or waveform is acquired based on the collected acceleration data, and control is performed so as to retroactively input a time stamp representing the time. .

  FIG. 21 is a flowchart showing an example of a processing flow in the walking analysis system 1 of the present modification example in the first embodiment.

  The time stamp input control unit 306 sets automatic time stamp input conditions according to the operation by the operator 11 before starting the collection of acceleration data, for example, step A3 in the flow shown in FIG.

  FIG. 22 is a diagram for explaining an example of setting a time stamp automatic input condition. The time stamp automatic input condition can be set by a method of setting a region of interest on past data as shown in FIG. For example, as shown in FIG. 22, the operator 11 determines a predetermined circular region as an acceleration region of interest ROI on a two-dimensional map of acceleration obtained in the past. The time stamp input control unit 306 automatically sets the time stamp when an acceleration exceeding the frame of the acceleration region of interest ROI is obtained, that is, when the composition of acceleration components in two predetermined directions exceeds a predetermined level. input. The acceleration region of interest ROI can be set so as to include almost the drawn area on the two-dimensional map, for example. In this case, when the shaking of the body of the patient 10 is larger than the past maximum shaking, a time stamp can be input at that timing.

  The time stamp input control unit 306 automatically sets the time stamp when acceleration exceeding the frame of the acceleration region of interest ROI occurs during collection of acceleration data, for example, step A5 in the flow shown in FIG. input.

  This time stamp automatic input may be used together with manual input.

  According to the first modified example, the time stamp can be automatically input when the patient 10 performs a specific operation, and the time stamp input operation can be omitted or the time stamp input operation can be omitted. Thus, the burden on the operator 11 can be reduced.

  Note that when the time stamp is automatically input, the time stamp input control unit 306 may emit a sound, vibration, or the like for notifying that. Thereby, the operator 11 can notify in real time the timing to which attention should be paid in the visual evaluation based on the acceleration data being collected.

  In addition, when setting automatic time stamp input conditions with reference to past data, operation data similar to a specific operation seen in the past, data of a larger operation compared to past operations, etc. It is possible to extract and change with time such as the improvement level of the patient 10 can be easily evaluated.

(Second modification)
In the first and second embodiments, a plurality of types of time stamps may be prepared and used separately. In the case of manual input, for example, a plurality of types of operations to be accepted are prepared, and the type of time stamp to be input is changed according to the type of operation performed by the operator 11. As a plurality of types of operations, for example, taps, long taps, swipes, etc., and operations of pressing any one of a plurality of types of buttons (hardware and software) can be considered. In the case of automatic input, for example, a plurality of time stamp automatic input conditions can be set, and the type of time stamp to be input is changed according to the conditions. The meaning of each type of time stamp may be associated with the type of interest, such as body shake or left / right wobble, or with the degree of interest, such as strong interest or weak interest.

  According to such a 2nd modification, a time stamp can be used properly according to the kind and grade of interest, etc., and more efficient walk evaluation can be expected. In particular, even when the time stamp is input a plurality of times, the reason for inputting each time stamp can be easily understood.

(Third Modification)
In the first and second embodiments, the time stamp input method is not limited to an operation of pushing a button displayed on the display unit 302 in a pseudo manner. For example, a method of inputting a time stamp in response to an operation of tapping or swiping with a finger at an unspecified place on the touch panel as the operation unit 301 mounted on the display unit 302 may be adopted. . Further, for example, a method is adopted in which a push button switch (not shown) and the gait analyzer 3 are connected by wire or wireless, and the operator 11 inputs a time stamp in response to an operation of pressing the push button switch. Also good. In the case of using the above method using the display unit 302, when preparing a plurality of types of time stamps, for example, a button is displayed for each type of time stamp, or the type of time stamp depending on the number of taps and the direction of swipe May be changed.

  According to such a third modification, better operability can be expected.

(Fourth modification)
In the first and second embodiments, the graph / map generator 73 generates and displays a mark indicating a position or range corresponding to acceleration data collected in a predetermined time zone including the time of interest ti represented by the time stamp. The control unit 310 may perform control so that the mark is displayed in the acceleration graph / map. Alternatively, the display control unit 310 highlights an area in a range corresponding to the acceleration data collected in the time zone in the acceleration graph / map by changing a color or a pattern from other areas. You may control.

  According to the fourth modified example, even if the timing at which the time stamp is input is deviated from the true time of interest due to an artificial or mechanical time lag, the operator 11 can move from the range to the true time of interest. It is possible to efficiently find and observe the position of the acceleration data acquired.

  The invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention.

  For example, in the above embodiment, the analysis result of the acceleration data is assumed to be a graph representing the time change of acceleration or a two-dimensional map obtained by plotting acceleration components in two directions at the same time. Is not limited to these.

  Further, for example, the above embodiment is an example in which the invention is applied to a walking motion of a person, but the invention can also be applied to other movement movements of a person, for example, a running movement of a person.

  Further, for example, the above embodiment is a mobile motion analysis device that analyzes acceleration data obtained from an acceleration sensor attached to a person as described above, but a program for causing a computer to function as such a device is also used. It is one of the embodiments of the invention.

1 Gait Analysis System 10 Patient 11 Operator 2 Acceleration Sensor Module 21 Processor 22 Acceleration Sensor 23 Memory 24 Communication I / F
25 Battery 201 Acceleration sensor unit 202 Sampling unit 203 Transmitting unit 3 Walking analysis device 31 Processor 32 Display 33 Operation unit 34 Memory 35 Communication I / F
36 battery 37 camera 301 operation unit 302 display unit 303 patient information reception unit 304 reception unit 305 acceleration data acquisition control unit 306 time stamp input control unit 307 data analysis unit 308 clock unit 309 display control unit 310 storage unit 311 overall control unit 312 Unit 313 Movie Data Acquisition Control Unit 41 Database 42 Storage Medium 71 Acceleration Component Specification Unit 72 Interest Time Matching Processing Unit 73 Graph / Map Generation Unit

Claims (3)

Collecting means for collecting acceleration data representing acceleration at each time during the movement of the person using an acceleration sensor attached to the person;
Storage means for storing a time corresponding to a desired timing as a time of interest during the movement of the person from which the acceleration data is collected;
Display control for controlling the display unit to display the collected acceleration data in a predetermined display form and to display the position of the acceleration data at the time of interest and / or the time around the time of interest. Means, and
The storage means stores, as the time of interest, a time at which an acceleration represented by a part of the acceleration data occurs when a part of the collected acceleration data satisfies a predetermined condition,
When the partial waveform of acceleration represented by the acceleration data approximates a predetermined waveform, the storage means stores the time when the partial waveform is generated as the time of interest.
Mobile motion analysis device. The mobile motion analysis apparatus according to claim 1 , wherein the predetermined waveform is set based on acceleration data of the person collected in the past.   A program for causing a computer to function as the mobile motion analysis apparatus according to any one of claims 1 to 2.