JP2024025122A - Information processing equipment, user terminals, information processing systems, programs, storage media - Google Patents

Abstract

[Problem] To enable a wheelchair user to recognize the degree to which his or her sitting posture is good or bad. SOLUTION: The information processing apparatus of the present invention is an apparatus including a score calculation unit that calculates a posture score based on seating data acquired by a sensing device. The user terminal of the present invention includes a receiving section and an output section, the receiving section is configured to receive a posture score calculated based on seating data, and the output section is configured to display the posture score received by the receiving section. It is something that The information processing system of the present invention includes a sensing device that acquires seating data, an information processing apparatus of the present invention, and a user terminal of the present invention, which are connected via a communication network. The program of the present invention is a program for causing a computer to function as the information processing device or user terminal of the present invention, and the storage medium of the present invention is a computer-readable storage medium that records the program. [Selection diagram] Figure 1

Description

The present invention relates to an information processing device, a user terminal, an information processing system, a program, and a storage medium that contribute to improving the sitting posture of a wheelchair user (hereinafter referred to as "sitting posture").

Conventionally, devices aimed at improving the sitting posture of wheelchair users include pelvic support belts to support the pelvis of a seated person (wheelchair user), thoracic support belts and belt attachments to support the thorax of the seated person. A sitting posture improving device (Patent Document 1) has been proposed.

JP2016-34296A

By the way, in the course of repeated research on measures that contribute to improving the effectiveness of exercise for wheelchair users, the applicant discovered that the quality of sitting posture affects the effectiveness of exercise, and that wheelchair users are aware of the importance of their own sitting posture. We found that by making people aware of their level of discomfort, they were able to improve their sitting posture, exercise effectiveness, and ability to perform daily activities.

In this regard, the sitting posture improvement device of Patent Document 1 aims to improve the sitting posture by physically supporting the seated person with a pelvic support belt and a thorax support belt. It was difficult to recognize the degree of good or bad sitting posture.

The present invention has been made in view of the above circumstances, and an object to be solved is to provide an information processing device, a user terminal, an information processing system, and a user terminal capable of making a wheelchair user aware of the quality of his or her sitting posture. Its purpose is to provide programs and storage media.

[Information processing device]
The information processing apparatus of the present invention includes a score calculation unit that calculates a posture score representing the degree of good or bad sitting posture of a wheelchair user based on seating data acquired by a sensing device.

[User terminal]
The user terminal of the present invention includes a receiving unit that receives a posture score indicating the degree of good or bad sitting posture of a wheelchair user, which is calculated based on sitting data acquired by a sensing device; This device includes an output unit that displays a posture score.

[Information processing system]
The information processing system of the present invention includes a sensing device that acquires seating data of a wheelchair user, an information processing device of the present invention, and a user terminal of the present invention, which are connected via a communication network.

[program]
The program of the present invention is a program for causing a computer to function as the information processing device of the present invention or the user terminal of the present invention.

[Storage medium]
The storage medium of the present invention is a computer-readable storage medium on which the program of the present invention is recorded.

According to the present invention, it is possible to make a wheelchair user aware of the quality of his or her sitting posture.

FIG. 1 is an overall configuration diagram showing an example of an information processing system. FIG. 1 is a schematic explanatory diagram showing an example of an installed sensing device. (a) is an explanatory diagram showing an example of the arrangement of seat sensors, and (b) is an explanatory diagram showing an example of the arrangement of rear sensors. FIG. 2 is an explanatory diagram showing an example of the configuration of a control unit and a sensor unit. Detailed explanatory diagram showing an example of a pressure sensor using conductive thread. (a) is an explanatory diagram showing an example of a lower garment side wearer, and (b) is an explanatory diagram showing an example of an upper garment side wearer. (a) is a block diagram showing an example of a hardware configuration of an information processing device, (b) is a block diagram showing an example of a storage configuration, and (c) is a block diagram showing an example of the functions of the information processing device. (a) An explanatory diagram showing an example of a user table, (b) an explanatory diagram showing an example of an exercise menu table. 5 is a flowchart showing an example of processing in a score calculation unit and an icon determination unit. 5 is a flowchart illustrating an example of a posture label issuance procedure. (a) and (b) are flowcharts showing an example of a posture label issuing procedure. (a) is an explanatory diagram of an example of a specific range in each quadrant of the seat surface, and (b) is an explanatory diagram of an example of a method for identifying the center of gravity axis. (a) to (c) are explanatory diagrams of examples of calculating posture scores, and (d) is an explanatory diagram showing an example of the relationship between posture scores and posture levels. (a) shows an example of a median icon, (b) shows an example of a hunched back icon, (c) shows an example of a left-leaning icon, and (d) shows an example of a right-leaning icon. An example of a correlation diagram between sitting posture (posture score) and ability to perform daily activities. 5 is a flowchart illustrating an example of a procedure for classifying the degree of disability. (a) is a block diagram showing an example of the hardware configuration of a user terminal, and (b) shows an example of an output section of the user terminal on which posture scores and posture icons are displayed.

(Embodiment)
An example of an embodiment of the present invention will be described with reference to the drawings. As an example, the information processing system shown in FIG. 1 includes a sensing device 10, an information processing apparatus 30, and a user terminal 50. The sensing device 10 and each user terminal 50 are communicably connected to the information processing apparatus 30 via a communication network N.

In this embodiment, the users include wheelchair users, physical therapists, caregivers (helpers), family members, medical personnel (doctors and nurses), insurance personnel, care managers, welfare equipment consultants, and local governments. is assumed.

For convenience of explanation, in the following, the user terminal 50 used by a wheelchair user will be referred to as a seating device user terminal or a wheelchair user terminal, and the user terminal 50 used by a person providing advice will be referred to as an advice provider terminal. be.

[Sensing device]
First, the sensing device 10 in the information processing system of this embodiment will be described with reference to the drawings. The sensing device 10 of this embodiment is an installation type sensing device 10 (seating device) that is installed on a wheelchair X for use.

As an example, the sensing device 10 shown in FIG. 2 includes a sensor unit 11 and a control unit 12. The sensor unit 11 is placed on the front side of the seat surface Xa and the back support Xb of the wheelchair , attached to the lower net, etc. The size of the control unit 12 can be adjusted according to the mounting position.

As an example, the sensor unit 11 shown in FIGS. 2 and 3(a) and 3(b) includes a sensor sheet 13, a sensor 14, and a seat cover 15. The sensor unit 11 of this embodiment includes a seat part 11a that is arranged on the seat surface Xa of the wheelchair X to detect the pressure applied to the seat surface Xa, and a seat part 11a that is arranged on the front surface of the backrest Xb of the wheelchair X to detect the pressure applied to the seat surface Xa. It is provided with a back portion 11b that detects the pressure applied to the back Xb.

The sensor sheet 13 is a sheet to which a sensor 14 is attached. The sensor sheet 13 of this embodiment includes a seat sheet 13a and a back sheet 13b. Although various materials can be used for the sensor sheet 13, in this embodiment, a sheet made of a flexible and waterproof material is used. In this embodiment, the seat sheet 13a and the back sheet 13b are constructed as separate bodies, but they can also be constructed as an integrated body.

The sensor 14 detects the pressure applied to the buttocks and back of a seated wheelchair user and converts it into an electrical signal. A pressure sensor, a load vector sensor, or the like can be used as the sensor 14.

In this embodiment, a pressure sensor with an effective sensor area of 39.6 mm x 39.6 mm, a thickness of 0.20 to 1.25 mm, a pressure sensitive range of 0.2 to 20 N, and a minimum sensitivity of 20 to 100 g is used as the sensor 14. There is. This pressure sensor is a type of thick polymer film, and its resistance value decreases when pressure (load) is applied to the sensor section. If the resistance characteristics of this pressure sensor are shown graphically, it will be a curve in which the resistance value gradually decreases as the load increases.

The sensor 14 is arranged as an independent sensor at each measurement point. In the control unit 12, the load (pressure) applied to each sensor 14 is calculated by back calculation from the electrical resistance measured for each sensor 14. By using such a pressure sensor as the sensor 14, the pressure applied to each sensor 14 can be specified as an absolute value, regardless of the measured values of other sensors 14.

As shown in FIGS. 2 to 4, in this embodiment, 32 sensors 14a (hereinafter referred to as "seat sensors") are mounted on the seat seat 13a, and 16 sensors (hereinafter referred to as "back sensors") are mounted on the back seat 13b. ) 14b is provided.

The 32 seat sensors 14a provided on the seat seat 13a are located in the area where the left and right thighs of the wheelchair user are located (thigh area) and the area where the buttocks are located (buttock area) in plan view. They are arranged in a substantially U-shape.

Each of the parts corresponding to the two arms of the U-shape constitutes the thigh region, and the part corresponding to the connecting part of this U-shape (the part that connects the two arms) constitutes the buttocks. Configure the area. The seat seat 13a is provided with a non-installation area 14c where the seat sensor 14a is not installed.

The non-installation area 14c here refers to the eight directions (top, bottom, left in FIG. 3(a) and FIG.・Right, upper right, lower right, upper left, lower left. One direction and two or more of the upper right, lower right, upper left, and lower left, or (c) three or more of the upper right, lower right, upper left, and lower left are surrounded by the seat sensor 14a that is currently installed. This includes the areas where

By providing a non-installation area 14c in the seat seat 13a (seat portion 11a) where the seat sensors 14a are not placed, the number of seat sensors 14a can be minimized. As a result, the time required to transmit data to the information processing device 30 (external device) can be shortened, and a system that can convey information to wheelchair users in real time can be constructed.

Specifically, in each thigh area, from the front side to the back side, they are arranged in the order of 3, 1 piece, 3 pieces, 1 piece, and in the buttocks area, from the front side to the back side. They are arranged in rows of 7, 5, and 4.

In the thigh region, there are locations where many seat sensors 14a are arranged in the left and right direction (three in the illustrated example) and where there are fewer seat sensors 14a, such as 3, 1, 3 to 1, 3, 1. By providing the locations (one in the illustrated example) alternately along the front-rear direction, there are locations where the seat surface sensors 14a are arranged in a fishbone shape.

In addition, the buttock area has seven seat sensors 14a in the front and four in the rear, so that the front has no non-installation area 14c and the rear has a non-installation area 14c. It has a location where it is placed.

The arrangement of the seat sensor 14a shown here is only an example, and the seat sensor 14a may be arranged in other ways.

As shown in FIGS. 2 to 4, the 16 back sensors 14b provided on the back sheet 13b are arranged 4, 4, 4, 4 at equal intervals from top to bottom. There is. The arrangement of the back sensor 14b shown here is an example, and the arrangement of the back sensor 14b may be other than this.

In the following explanation, the seat 13a is divided into four areas divided by a front-rear dividing line L1 that divides the seat 13a evenly in the front and back and a left-right divider line L2 that divides the seat 13a equally in the left and right as shown in FIG. 3(a). The area is called the first quadrant A1, the lower right area is called the second quadrant A2, the upper left area is called the third quadrant A3, and the upper right area is called the fourth quadrant A4.

In addition, the area on the left side (first quadrant A1 and third quadrant A3) of the left-right dividing line L2 in FIG. Area B2, the area above the front-rear dividing line L1 (third quadrant A3 and fourth quadrant A4) is called front area B3, and the area below it (first quadrant A1 and second quadrant A2) is called rear area B4. That's what it means.

The seat cover 15 covers the sensor sheet 13 and the sensor 14 attached to the sensor sheet 13. The seat cover 15 of this embodiment includes a seat cover 15a that covers the seat seat 13a and the seat sensor 14a, and a back cover 15b that covers the back seat 13b and the back sensor 14b. Although various materials can be used for the seat cover 15, in this embodiment, a sheet made of a flexible and waterproof material is used.

The control unit 12 is a unit for controlling the sensor unit 11. As shown in FIG. 4, the control unit 12 of this embodiment includes a microcomputer 16, a battery 17, and a communication module 18. The microcomputer 16, battery 17, and communication module 18 are housed in a storage box 19.

The microcomputer 16 processes signals acquired by the seat sensor 14a and the back sensor 14b, and transmits the signals to the information processing device 30 via the communication module 18. The microcomputer 16 includes a microcomputer board 16a and various electronic components 16b mounted on the microcomputer board 16a. For example, an Arduino or the like can be used for the microcomputer board 16a.

A communication module 18 for transmitting data acquired by the sensor 14 to the information processing device 30 is connected to the microcomputer 16 . For example, a 3GIM (3G IoT Module) or the like can be used as the communication module 18.

The communication module 18 may also be equipped with a GPS (Global Positioning System) function. When using the communication module 18 equipped with a GPS function, it is possible to obtain not only location information data of a wheelchair user, but also data regarding movement speed from the location information and travel time. A module with GPS functionality can also be provided separately from the communication module 18.

As shown in FIG. 4, in this embodiment, one microcomputer board 16a is connected to each of the 16 sensors 14. A sensor 14 is connected to each microcomputer board 16a by wire, and each microcomputer board 16a acquires data from the 16 sensors 14 assigned to it.

Serial communication is performed between each microcomputer board 16a, and data acquired by each microcomputer board 16a is transmitted to the information processing device 30 via the common communication module 18. Although the case where a plurality of microcomputer boards 16a are used is taken as an example here, it is also possible to configure so that all the sensors 14 are connected to one microcomputer board 16a.

A common battery 17 is connected to each microcomputer board 16a, and power is supplied from the battery 17 to each microcomputer board 16a. As the battery 17, an existing lithium ion secondary battery or the like can be used. The battery 17 and each microcomputer board 16a are connected within the storage box 19.

In the information processing system of this embodiment, acquired data is transmitted to the information processing device 30 every few seconds in order to convey information to a wheelchair user in real time. Data can be sent at shorter or longer intervals. The transmitted data is processed in the information processing device 30. Processing in the information processing device 30 will be described later.

The configuration of the sensing device 10 described above is an example, and the sensing device 10 may have a configuration other than this as long as the intended purpose can be achieved.

-Other embodiment 1 of sensing device-
In the embodiment described above, the sensor unit 11 is an example in which the sensor sheet 13 to which the sensor 14 is attached is covered with the sheet cover 15, but a thin film such as polyimide is used as the sensor sheet 13, and a predetermined coating is applied to the thin film. It is also possible to use a sensor in which several sensors 14 are mounted and covered with a seat cover 15 such as urethane foam (one-piece sensor). In this case, the connector and cord connected to the sensor 14 should also fit inside the urethane foam. The single-piece sensor is preferably constructed to have a thickness of approximately 3 to 5 mm.

The thin film can have a thickness of about 0.1 to 1.0 mm, preferably about 0.1 to 0.5 mm. The sensor sheet 13 may also be a flexible printed circuit board (FPC) in which a conductive foil such as copper foil is bonded to a base film such as a polyimide thin film.

The cushions of Wheelchair There are various types of cushions, such as those with uneven surfaces, and if a fabric-like sensor like the one disclosed in Patent Document 1 is placed on a cushion with uneven surfaces, the seat pressure will be reduced when the sensing part falls between the uneven surfaces. Accurate detection may not be possible.

On the other hand, with the sheet-shaped sensor unit 11 described above, the seat surface sensor 14a does not fall between the unevenness of the cushion, and the seat pressure can be accurately detected.

In addition, when using a single-piece sensor, both the part placed on the seat surface Xa and the part placed in front of the backrest Xb can be combined into a single-piece sensor, or each of both can be separately made into a single-piece sensor. You can also. When the sensor unit 11 is a single-piece sensor, it may be configured such that it can be folded in half, for example, in left and right halves, taking into consideration the folding direction of the wheelchair X.

-Other embodiment 2 of sensing device-
In the embodiment described above, a pressure sensor (see FIGS. 3(a) and 3(b)), which is a type of thick polymer film, is used as an example of the sensor 14, but it is also possible to use something other than this as the sensor 14. Can be done. For example, as the sensor 14, a pressure sensor configured using a conductive thread (hereinafter referred to as "conductive thread") 114 as shown in FIG. 5 can be used.

In the sensor 14 shown in FIG. 5, two conductive threads 114, one on the positive electrode side and the other on the negative electrode side, are sewn in a spiral shape to a resistance cloth 117 sewn to a base cloth 116 using a sewing thread 115. Each conductive thread 114 is passed through a bobbin thread (not shown). The shape of the conductive thread 114 to be sewn is not limited to a spiral shape, but may also have other shapes.

The part of the base cloth 116 without the resistance cloth 117 becomes a conductive wire region, and one end of each conductive thread 114 sewn into the resistance cloth 117 in a spiral shape protrudes from the resistance cloth 117 and is sewn to the conductive wire region. An electrode 118 is formed. A control unit 12 is connected to the lower garment side wearer 111 and the upper garment side wearer 112 via electrodes 118.

In this embodiment, a polyamide conductive thread is used as the conductive thread 114, a polyester thread is used as the sewing thread 115, a felt cloth material is used as the base cloth 116, and a carbon mesh cloth material is used as the resistance cloth 117. Materials other than these may also be used for the conductive thread 114, sewing thread 115, base cloth 116, and resistance cloth 117.

The areas where the two conductive threads 114 on the positive electrode side and the negative electrode side are sewn each serve as sensing areas, and like the seat sensor 14a and the back sensor 14b described above, even a sensor configured using the conductive threads 114, The pressure applied to each sensor 14 can be specified as an absolute value.

-Other embodiment 3 of sensing device-
In the embodiment, a seating device is used as an example of the sensing device 10, but a wearable device worn by a wheelchair user may also be used as the sensing device 10.

As a wearable device, for example, a device equipped with a sensor on a lower garment or upper garment that can be worn by a wheelchair user as shown in FIGS. 6(a) and 6(b) can be used. . A jacket is a garment worn on the upper body, and corresponds to a so-called top. In addition, lower clothing refers to clothing worn on the lower half of the body, and corresponds to so-called bottoms.

As an example, the wearable device shown in FIGS. 6(a) and 6(b) includes a lower garment side attachment 111 (FIG. 6(a)) worn on the lower body, and an upper garment side attachment 112 (FIG. 6(b)) worn on the upper body. )). The lower garment side wearing tool 111 of this embodiment has a form like long pants, and includes two leg covering parts 111a in which the wearer's legs are accommodated, and a rise-side covering part in which the region from the base of the legs to the waist region is accommodated. 111b.

The seat surface sensor 14a of the seating device 10 has a region on the back side of the thighs (thigh region) of both leg covering portions 111a and a region on the back side of the buttocks (buttock region) of the thigh side covering portion 111b. A corresponding sensor 113 (hereinafter referred to as "lower garment side sensor 113a") is provided, and corresponds to the non-installation region 14c of the seating device 10 in the region where the cloth material constituting the lower garment side wearing tool 111 is present. A non-installation area is provided.

By providing a non-installation area where the lower garment side sensors 113a are not arranged even in the area where the cloth material constituting the lower garment side wearing equipment 111 exists, the number of lower garment side sensors 113a can be reduced as in the case of the seating device 10. As a result, the time for transmitting data to the information processing device 30 (external device) can be shortened, and a system that can convey information to wheelchair users in real time can be constructed. .

It should be noted that the parts other than the thigh region and the buttocks region of the lower garment side wearable device 111 can also be treated as non-installation regions where the sensor 113 is not provided, and in this case, the non-installation region includes both leg coverings. It also includes a space portion between the portions 111a where there is no cloth material constituting the lower garment side wearer 111.

In addition, the upper garment side wearing tool 112 of this embodiment has a T-shirt-like form and includes a body portion 112a and both sleeve portions 112b. A sensor 113 (hereinafter referred to as "jacket side sensor 113b") corresponding to the back sensor 14b of the seating device 10 is provided on the back side (back area) of the body portion 112a.

For the lower garment side sensor 113a and the upper garment side sensor 113b, a pressure sensor which is a type of thick polymer film as shown in FIGS. 3(a) and 3(b) or a conductive thread 114 as shown in FIG. A configured pressure sensor or the like can be used.

When pressure sensors configured using conductive threads 114 are used as the lower garment side sensor 113a and the upper garment side sensor 113b, the cloth material forming the lower garment side wearer 111 and the upper garment side wearer 112 is used as the base cloth 116. be able to.

[Information processing device]
The information processing device 30 is a device that acquires, processes, aggregates, records, and updates data transmitted from the sensing device 10, as well as responds to requests from each user terminal 50. In this embodiment, the information processing device 30 is constructed in a cloud environment.

The information processing device 30 can also be configured with one or two or more computers. Further, the installation area of the information processing device 30 may be within Japan or outside Japan.

As shown in FIG. 7A, the information processing device 30 of this embodiment includes a processor 31, a memory 32, a storage 33, a communication section 34, an input section 35, and an output section 36 as main components. Each of these elements is electrically connected through a bus 37.

Although not shown, the information processing device 30 is configured to include a power source, a storage device, an uninterruptible power source, a backup device, etc. so that services can be stably provided to a plurality of user terminals 50. is preferable.

The processor 31 centrally controls each component connected via a bus 37, and is composed of, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The processor 31 loads application programs necessary for executing processes from the storage 33 into the memory 32, and executes each process.

The memory 32 is a main storage device that stores data and instructions, and is composed of, for example, a ROM (Read Only Memory) or a RAM (Random Access Memory).

The storage 33 is an auxiliary storage device that stores programs and data, and includes, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), a flash memory, or the like. As shown in FIG. 7B, the storage 33 stores a database 33b in addition to a program (application program) 33a of the information processing system of this embodiment.

The database 33b is provided with various tables, such as a user table 33c that stores data on wheelchair users, and an exercise menu table 33d that stores data related to exercise menus.

FIG. 8(a) shows an example of the user table 33c. The user table 33c shown in FIG. 8(a) is composed of items such as "user ID", "level of care required", and "disability type". The items of the user table 33c described here are just examples, and the user table 33c can also include items other than these. Additionally, unnecessary items can be omitted.

FIG. 8(b) shows an example of the exercise menu table 33d. The exercise menu table 33d shown in FIG. 8(b) is composed of the following items: "Exercise Menu No.", "Item", "Number of Exercises/Time", "Execution Place", and "Exercise Side". The items of the exercise menu table 33d described here are just examples, and the exercise menu table 33d can also include items other than these. Additionally, unnecessary items can be omitted.

The communication unit 34 is an interface for communicating with the sensing device 10 and each user terminal 50 via the communication network N, and uses TCP/IP, Bluetooth Low Energy (registered trademark), and Bluetooth (registered trademark). , 3G, 4G (LTE), 5G, and other communication standards.

The communication section 34 includes a receiving section 34a and a transmitting section 34b. The receiving unit 34a receives signals from each user terminal 50, decodes the received signals, and transmits the decoded signals to the processor 31. The transmitter 34b transmits the information transmitted from the processor 31 to each user terminal 50.

The input unit 35 is a device for inputting information, and includes, for example, a keyboard, a touch screen, a mouse, a voice input device, and the like. The output unit 36 is a device for outputting information, and includes a display, a printer, and the like.

Next, the functions of the information processing device 30 will be explained. FIG. 7(c) is a functional block diagram of the information processing device 30 of this embodiment. The information processing device 30 of this embodiment includes a data acquisition section 301, a score calculation section 302, an icon determination section 303, and an exercise menu determination section 304 as main components.

The data acquisition unit 301 is a functional unit that acquires data. The data acquired by the data acquisition unit 301 includes various data acquired by the sensing device 10 (e.g., sitting pressure, sitting time, etc.), as well as various data related to wheelchair users input at the time of user registration of this information processing system. (For example, user ID, name, height, weight, age, degree of disability, site of disability, etc.).

The score calculation unit 302 calculates the degree of good or bad sitting posture of the wheelchair user based on the sitting data (more specifically, the sitting pressure data that is data related to the pressure applied to the seat surface) acquired by the data acquisition unit 301. This is a functional unit that calculates a posture score representing the posture. As shown in FIG. 9, the score calculation unit 302 performs label issuing processing S001, counting processing S002, and score calculation processing S003.

The label issuing process S001 is a process of issuing a posture label representing a posture in a predetermined time (hereinafter referred to as "unit time"). In this embodiment, the unit time is set to 5 minutes, and posture labels are issued 12 times per hour. The unit time can be set arbitrarily, and can be made longer or shorter than 5 minutes.

In this embodiment, four types of posture labels are set: "median", "hunchback", "right side", and "left side". The types of posture labels may be other than these, and the number can be greater or less than four types.

The score calculation unit 302 executes the label issuing process according to the procedure shown in FIGS. 10 and 11(a) and 11(b). In the following explanation, the average value of the seating pressure applied to the specific range R1 of the first quadrant A1 of the seat 13a in FIG. The average value of the applied seating pressure is the second seating pressure X2, the average value of the seating pressure applied to the specific range R3 of the third quadrant A3 is the third seating pressure The average value is called the fourth seating pressure X4.

Further, as shown in FIG. 12(b), the center of gravity axis is specified by the value Y in the Y-axis direction of the seat sheet 13a. The following describes the process for issuing a posture label using these concepts.

(1) First, as shown in Fig. 10, the difference between the first seating pressure X1 and the second seating pressure It is determined whether or not the value (hereinafter referred to as "reference threshold value") is equal to or less than Xt (S101).
(2) In (1) above, when it is determined that the first difference is less than the reference threshold value Xt, the difference between the third seating pressure X3 and the fourth seating pressure X4 (hereinafter referred to as "second difference") It is determined whether the second difference is less than or equal to the reference threshold value Xt (S102).
(3) In (2) above, when it is determined that the second difference is less than or equal to the reference threshold Xt, the value of the center of gravity axis (hereinafter referred to as "center of gravity axis value") ) is less than Yt (S103).
(4) In (3) above, when it is determined that the center of gravity axis value Y is less than the center of gravity axis threshold Yt, a posture label of "median" (hereinafter referred to as "median label") is issued (S104).
(5) In (3) above, when it is determined that the center of gravity axis value Y is not less than the center of gravity axis threshold Yt, a posture label of "hunchback" (hereinafter referred to as "hunchback label") is issued (S105).
(6) In the above (2), when it is determined that the second difference is not equal to or less than the reference threshold value Xt, it is determined whether the third seating pressure X3 is greater than the fourth seating pressure X4 (S106).
(7) In (6) above, if it is determined that the third seating pressure X3 is greater than the fourth seating pressure X4, a "leftward" posture label (hereinafter referred to as "leftward label") is issued (S107) .
(8) In the above (6), when it is determined that the third seating pressure X3 is smaller than the fourth seating pressure X4, a "right-side" posture label (hereinafter referred to as "right-side label") is issued (S108) .
(9) In (1) above, when it is determined that the first difference is not less than the reference threshold value Xt, the process moves to the process of FIG. It is determined whether or not (S201).
(10) In (9) above, if it is determined that the first seating pressure X1 is greater than the second seating pressure X2, the second difference (the absolute value of the difference between the third seating pressure X3 and the fourth seating pressure X4) It is determined whether or not it is less than or equal to the reference threshold value Xt (S202).
(11) In (10) above, if it is determined that the second difference is less than or equal to the reference threshold value Xt, a left-sided label is issued (S203).
(12) In the above (10), when it is determined that the second difference is not less than the reference threshold value Xt, it is determined whether the third seating pressure X3 is greater than the fourth seating pressure X4 (S204).
(13) In (12) above, if it is determined that the third seating pressure X3 is greater than the fourth seating pressure X4, a left-side label is issued (S205), and the third seating pressure If it is determined that there is no label, a right-side label is issued (S206).
(14) In (9) above, when it is determined that the first seating pressure X1 is not greater than the second seating pressure and the fourth seating pressure X4) is less than or equal to the reference threshold value Xt (S207).
(15) In the above (14), if it is determined that the second difference is less than or equal to the reference threshold value Xt, a right-side label is issued (S208).
(16) In the above (14), when it is determined that the second difference is not less than the reference threshold value Xt, it is determined whether the third seating pressure X3 is greater than the fourth seating pressure X4 (S209).
(17) In the above (16), if it is determined that the third seating pressure X3 is greater than the fourth seating pressure X4, a left-side label is issued (S210). If it is determined that there is no label, a right-side label is issued (S211).

The score calculation unit 302 repeats the steps (1) to (17) a predetermined number of times and issues one posture label each time. In this embodiment, since the unit time is set to 5 minutes, posture labels are issued 12 times per hour.

The number of times the posture label is issued is determined based on the time for which the posture score is calculated (hereinafter referred to as "calculation target time") and the unit time. For example, if the calculation target time is 3 hours and the unit time is 5 minutes, the posture label will be issued 36 times.

In this embodiment, a minimum riding time is set, and when the actual vehicle time is greater than or equal to the minimum riding time, the actual vehicle time becomes the calculation target time, and when the actual vehicle time is less than the minimum riding time, the minimum riding time is the calculation target time. Become.

For example, if the minimum riding time is set to 3 hours and the unit time is 5 minutes, if the actual vehicle time is 2 hours, which is shorter than the minimum riding time, the minimum riding time will be calculated and a posture label will be issued 36 times. will be done. Note that the minimum riding time may be longer or shorter than 3 hours.

After completing the label issuing process S001, the score calculation unit 302 executes the counting process S002. Count processing S002 is processing for counting the number of times posture labels are issued. In this process, the number of times each type of posture label has been issued within the calculation target time is counted.

For example, if posture labels are issued 36 times during a 3-hour calculation period, the median label is issued 12 times, the hunched back label is issued 6 times, the left-sided label is issued 0 times, and the right-sided label is issued 0 times. The number of issuances is counted for each type of posture label, such as six times.

After completing counting of posture labels, the score calculation unit 302 executes score calculation processing S003. The score calculation process S003 is a process of calculating a posture score representing the degree of good or bad sitting posture of the wheelchair user using the counting results of the posture labels.

In this embodiment, the number of points used to calculate the posture score (hereinafter referred to as "calculation score") is set in advance for each posture label. Specifically, 100 points are set for a median label, 50 points for a hunchback label, and 30 points for a left-sided label and a right-sided label. This score is just an example, and the calculation score for each posture label may be other than this.

In addition, in this embodiment, a minimum riding time (3 hours in the above example) is set, and for the portion less than that time (portion for which a posture label is not issued), the posture label is set to "no data" and the posture score is set. The calculation points used for calculation are set to 0 points.

For example, if the minimum riding time is 3 hours and the actual vehicle time is 2 hours, the 1 hour (12 posture labels) that is less than the minimum riding time will be marked as "no data" and the calculation points used to calculate the posture score will be 0. points are used.

The score calculation unit 302 executes posture score calculation processing based on the following [Formula 1].
[Formula 1]
{(Number of times the median label is issued x Scores for calculating the median label) ÷ (Calculation target time x Number of posture labels issued per hour)} + {(Number of times the hunched back label is issued x Points allocated for calculating the hunched back label) ÷ (Calculation) Target time x Number of posture labels issued per hour)} + {(Number of left-sided labels issued x Calculation points for left-sided labels) ÷ (Calculation target time x Number of posture labels issued per hour)} + {(Right-sided labels) Number of times of issuance x Points for calculation of right-side labels) ÷ (Calculation target time x Number of posture labels issued per hour)} + {(Number of "No data" times x Points for calculation of "No data") ÷ (Calculation target Time x number of posture labels issued per hour)}

FIGS. 13(a) to 13(c) show examples of calculating posture scores. The calculation example in FIG. 13(a) is when the actual vehicle time is 2 hours, the calculation example in FIG. 13(b) is when the actual vehicle time is 3 hours, and the calculation example in FIG. 13(c) is when the actual vehicle time is 4 hours. This is an example. In both calculation examples, the minimum riding time is set to 3 hours and the unit time is set to 5 minutes. In addition, the posture score is rounded to the nearest whole number.

[Posture score calculation example 1]
In the example of FIG. 13A, the minimum riding time (3 hours) is the calculation target time, and the posture label is issued 36 times. In this example, the number of times of the midline label is 12, the number of times of the hunched back label is 6, the number of left-sided labels is 0, the number of right-sided labels is 6, and the number of no data is 12. Applying this to the above [Formula 1], the posture score is calculated as 47 points.

[Posture score calculation example 2]
In the example of FIG. 13(b), the actual vehicle time (3 hours) is the calculation target time, and the attitude label is issued 36 times. In this example, the number of times the center label is used is 18, the number of times the hunchback label is used is 9, the number of left-side labels is 6, the number of right-side labels is 3, and the number of no data is 0. Applying this to the above [Formula 1], the posture score is calculated as 70 points.

[Posture score calculation example 3]
In the example of FIG. 13(c), the actual vehicle time (4 hours) is the calculation target time, and the attitude label is issued 48 times. In this example, the number of times the center label is used is 10, the number of times the hunchback label is used is 10, the number of left-sided labels is 20, the number of right-sided labels is 8, and the number of no data is 0. Applying this to the above [Formula 1], the posture score is calculated as 49 points.

As shown in FIG. 13(d), in this embodiment, posture levels are set according to posture scores. Specifically, a posture score of 81 points or higher is "Level 4," a posture score of 61 to 80 points is "Level 3," a posture score of 41 to 60 points is "Level 2," and a posture score of 40 points or less is "Level 2." The case is set to "level 1".

As shown in FIG. 9, when the posture label counting process S002 is completed, the icon determining unit 303 executes the icon determining process S004 based on the result of the counting process.

The icon determination process S004 is a process of determining a posture icon that is a pattern of the posture at the calculation target time from among preset posture icons. In this embodiment, four types of posture icons shown in FIGS. 14(a) to 14(d) are set in advance.

The posture icon in FIG. 14(a) is a "midline icon" indicating that the posture is in the median, the posture icon in FIG. 14(b) is a "hunchback icon" indicating that the posture is in a hunched position, and the posture icon in FIG. 14(c) is The posture icon is a "left-leaning icon" indicating that the posture is tilted to the left, and the posture icon in FIG. 14(d) is a "right-leaning icon" indicating that the posture is leaning to the right.

In this embodiment, the posture indicated by the posture label issued the most times within the calculation target time is determined as the posture icon. For example, if the most midline labels were issued within the calculation time period, the "center icon" would be used, if the most hunchback labels were issued, the "hunchback icon" would be used, and if the most left-sided labels were issued, the "hunchback icon" would be used. The "left icon" is determined as the posture icon, and the "right icon" is determined as the posture icon if the most labels are issued than the right one.

In addition, in case there are two or more labels that have been issued many times, it is possible to prioritize the posture icons. In this case, when there are two or more labels that have been issued many times, the posture icon with the higher priority can be selected.

The posture score calculated through the above steps and the determined posture icon are transmitted to the user terminal 50 by the transmitter 34b. In addition to transmitting both the posture score and the posture icon to the user terminal 50, the transmitting section 34b can also transmit only one of them to the user terminal 50.

The exercise menu determining unit 304 is a functional unit that selects and determines an optimal exercise menu from preset exercise menus based on the posture score, posture level, etc. calculated by the score calculation unit 302. .

In this embodiment, the exercise menu is determined according to the posture score. Specifically, while the posture score is low, an exercise menu with a small exercise load is selected, and as the posture score improves, an exercise menu with a large exercise load is selected.

Exercise load can be adjusted by exercise items and exercise intensity. The exercise item refers to the type of exercise, and the exercise intensity refers to the intensity of the physical burden placed on the performer during exercise.

The exercise items include not only commonly known menus but also original menus devised by the user. In this embodiment, menus are roughly divided into menus that can be performed on a wheelchair and menus that can be performed in a place other than a wheelchair. All of the content is designed to be carried out by wheelchair users.

Examples of exercises performed on a wheelchair include push-ups, weight shifts, side raises, back extensions, trunk rotations, arm curls, and leg presses. Examples of exercises performed outside of a wheelchair include shoulder rotations, push-ups, and puppy movements. There are positions, leg swings, sit-ups, leg extensions, ham curls, etc. Note that even if the menu is the same, it may not be possible to execute it depending on the degree of disability of the wheelchair user, so it is preferable to divide the menu into several levels.

The exercise intensity includes the execution time and the number of executions. The exercise intensity can also be set based on the heart rate when performing each exercise item. For example, a wheelchair user is asked to perform a plurality of exercise items in advance, and the heart rate for each exercise item is measured. This data can be obtained for a plurality of people, and the exercise intensity for each exercise item can be set based on the data.

In this embodiment, a reference intensity (hereinafter referred to as "reference intensity") is set for each exercise item, and a weighting factor is set for each posture score. The weighting rate can be set arbitrarily.

In this embodiment, as an example, "Level 1" with the lowest posture score has 0.7 points, "Level 2" has 0.8 points, "Level 3" has 0.9 points, and Level 4 has 1.0 points. 0 point is set as the multiplication rate for weighting.

This multiplication factor is used to adjust exercise intensity. Specifically, the exercise intensity can be adjusted by multiplying the above-mentioned reference intensity by a corresponding multiplication factor. For example, if the standard intensity is set to "10 times of execution," for a person at "Level 4," the exercise intensity will be 10 times (10 times the number of times of execution multiplied by 1.0), which is the exercise intensity of "Level 1". For a person, the exercise intensity is the number of times of execution 10 multiplied by 0.7, which is 7 times.

As described above, by weighting the exercise intensity according to the posture score, an exercise menu with a low exercise intensity will be selected while the posture score is low, and an exercise menu with a high exercise intensity will be selected as the posture score improves. Become so. In other words, the exercise intensity can be set so as to follow the curve in FIG. 15.

That is, as shown in FIG. 15, when the posture score is low (the posture score is referred to as "SS"), the amount of increase in exercise intensity ( The amount of increase in the exercise intensity is set as ΔU (SS). If the posture score is higher than this (the posture score is referred to as "SL". In this case, SS<SL). , the amount of increase in exercise intensity (the amount of increase in exercise intensity is defined as ΔU (SL)) with respect to the above-described predetermined increase (ΔS) from the posture score (SL) is calculated as the increase in the above-mentioned low posture score “SS”. (In other words, ΔU (SL) > ΔU (SS).), thereby increasing exercise efficiency.

When setting an exercise menu, in addition to the posture score, it is also possible to take into account the wheelchair user's degree of disability, gender, age, purpose of exercise, etc.

When considering the degree of disability, wheelchair users are classified into several classes according to the degree of disability, and a weighting factor is set for each class. Classification can be performed in various ways, for example, according to the flow shown in FIG.

As shown in FIG. 16, in this classification method, it is first determined whether the wheelchair user is able to extend the elbow (S301), and if the wheelchair user is unable to do so, the wheelchair user is classified into "Class 1". Classify.

Next, for the person who can extend the elbow, it is determined whether the wrist is paralyzed, specifically whether the grip strength is at least a predetermined value (for example, 10 kg) (S302), and if the grip strength is less than the predetermined value In this case, the wheelchair user is classified as "Class 2".

Next, it is determined whether the person without wrist paralysis (grip strength is above a predetermined value) can maintain a forward leaning posture in a sitting position for a predetermined period of time (for example, 5 to 10 seconds) (S303), and if the person is unable to maintain the forward leaning posture. In this case, the wheelchair user is classified as "Class 3". The forward-leaning posture here means a posture in which the head is positioned in front of the sitting bones.

Next, for those who can maintain a forward-leaning posture in a sitting position for a predetermined period of time, it is determined whether or not the person can maintain a standing posture for a predetermined period of time (for example, 10 seconds or more) without support (S304), and the standing posture is adjusted. If the wheelchair user cannot maintain the standing position, the wheelchair user is classified as "class 4", and if the wheelchair user can maintain the standing posture, the wheelchair user is classified as "class 5".

As described above, after classifying wheelchair users into five classes according to the degree of disability, a weighting factor is set for each class. The multiplication rate can be set arbitrarily, but in this embodiment, as an example, the multiplication rate is 0.6 points for "class 1" where the degree of disability is severe, and the multiplication rate for "class 2" is 0.7 points. , the multiplication rate for "class 3" is set as 0.8 points, the multiplication rate for "class 4" is set as 0.9 points, and the multiplication rate for "class 5" is set as 1.0 points.

This multiplication rate is used as a value for adjusting exercise intensity. Specifically, the exercise intensity can be adjusted by multiplying the above-mentioned reference intensity by a corresponding multiplication factor. For example, if the standard intensity is set to 10 times, for a person in "class 5", the exercise intensity will be 10 times the number of times performed multiplied by 1.0, and for a person in "level 1" If so, the exercise intensity will be the number of times of execution (10 times) multiplied by 0.6 (6 times).

Similarly, when considering gender, a weighting factor is set for each gender. Although the weighting rate can be set arbitrarily, in this embodiment, the weighting rate is set to 1.0 point for "male" and 0.9 point for "female".

Similarly, when considering age, a weighting factor is set for each age. The weighting rate can be set arbitrarily, but in this embodiment, "age" is set to "19 years old or younger," "20 years old to 44 years old," "45 years old to 64 years old," "65 years old to 74 years old," and "75 years old." The system categorizes children into five age groups: 15 years old and above, and sets a weighting factor for each age group.

Specifically, 1.0 points for "under 19 years old" and "20 to 44 years old," 0.9 points for "45 to 64 years old," 0.8 points for "65 to 74 years old," A weighting factor of 0.7 points has been set for those aged 75 and over.

Similarly, when considering the purpose of exercise, a weighting factor is set for each purpose of exercise. The purpose of exercise can be set arbitrarily, but in this embodiment, ``muscle gain,'' ``diet,'' ``increase physical strength,'' ``increase balance ability,'' ``improve sports competitiveness,'' ``improve posture,'' ``prevent stiff shoulders,'' ``improve flexibility,'' and Preventing bedsores and improving daily activities are set as exercise objectives, and a multiplication rate is set for each exercise objective.

Specifically, 1.1 points were awarded for ``increasing muscle mass,'' ``dieting,'' ``increasing physical strength,'' ``increasing balance ability,'' and ``improving sports competitiveness,'' and ``improving posture,'' ``preventing stiff shoulders,'' ``improving flexibility,'' and ``preventing bedsores.'' A weighting factor of 1.0 points is set for "Improvement in daily activities."

The exercise menu set in the above manner is stored in the exercise menu table 33d (FIG. 7(b)) of the database 33b constructed in the storage 33, and the exercise menu determination unit 304 selects an exercise menu that meets the conditions. Select and decide from the menu table 33d.

The configuration of the information processing device 30 described here is an example, and the information processing device 30 may have a configuration other than this as long as the intended purpose can be achieved.

[User terminal]
The user terminal 50 is an information communication device used by wheelchair users, physical therapists, caregivers, family members, medical personnel, insurance personnel, and the like. The user terminal 50 can be composed of a PC, a tablet, a smartphone, or the like.

As shown in FIG. 17(a), the user terminal 50 of this embodiment includes a processor 51, a memory 52, a storage 53, a communication section 54, an input section 55, and an output section (display) 56 as main components. . Each of these elements is electrically connected through a bus 57.

The configurations of the processor 51, memory 52, storage 53, communication unit 54, input unit 55, output unit 56, and bus 57 are the same as those of the information processing device 30, so their description will be omitted here.

The receiving unit 54a of the communication unit 54 of this embodiment receives data from external devices such as the information processing device 30. Specifically, the posture score, posture icon, and the like transmitted from the information processing device 30 are received.

The output unit 56 is a functional unit that displays various information, and displays posture scores, posture icons, etc. transmitted from the information processing device 30. As shown in FIG. 17(b), in this embodiment, both the posture score and the posture icon are displayed on the output unit 56, but the display method may be other than these.

In addition to using the information processing system from a browser on their own user terminal 50, each user may also install a dedicated application on his or her user terminal 50 and use the application.

The configuration of the user terminal 50 described here is an example, and the user terminal 50 may have a configuration other than this as long as the intended purpose can be achieved.

(Other embodiments)
The present invention is not limited to the configuration of the embodiments described above, and various modifications and changes can be made without departing from the gist thereof.

The information processing system of the present invention only needs to function as a whole, and which functions are implemented in which devices can be designed in accordance with the information processing system to be constructed.

INDUSTRIAL APPLICABILITY The present invention can be suitably used as a device or system for calculating posture scores and determining exercise menus for users of various sitting devices, particularly as a device or system for calculating posture scores and determining exercise menus for wheelchair users. Can be done.

10 Sensing device 11 Sensor unit 11a Seat part 11b Back part 12 Control unit 13 Sensor sheet 13a Seat seat 13b Back seat 14 Sensor 14a Seat sensor 14b Back sensor 14c Non-installation area 15 Seat cover 15a Seat cover 15b Back cover 16 Microcomputer 16a Microcomputer board 16b Electronic component 17 Battery 18 Communication module 19 Storage box 30 Information processing device 31 Processor 32 Memory 33 Storage 33a Program 33b Database 33c User table 33d Exercise menu table 34 Communication section 34a Receiving section 34b Transmitting section 35 Input section 36 Output section 37 Bus 50 User terminal 51 Processor 52 Memory 53 Storage 54 Communication section 54a Receiving section 54b Transmitting section 55 Input section 56 Output section 57 Bus 111 Lower garment side wearer 111a Leg covering section 111b Rise side covering section 112 Upper garment side wearer 112a Body part 112b Sleeve part 113a Lower garment side sensor 113b Upper garment side sensor 114 Conductive thread 115 Sewing thread 116 Base cloth 117 Resistance cloth 118 Electrode 301 Data acquisition section 302 Score calculation section 303 Icon determination section 304 Exercise menu determination section A1 First quadrant A2 Second quadrant A3 Third quadrant A4 Fourth quadrant B1 Left side area B2 Right side area B3 Front side area B4 Rear side area L1 Front and rear dividing line L2 Left and right dividing line N Communication network R1 Specific range of the first quadrant of the seat seat R2 Seat seat Specific range in the second quadrant of the seat R3 Specific range in the third quadrant of the seat R4 Specific range in the fourth quadrant of the seat X Wheelchair Xa Seat Xb Back support
X1 First seating pressure X2 Second seating pressure X3 Third seating pressure X4 Fourth seating pressure Xt Reference threshold Y Center of gravity axis value Yt Center of gravity axis threshold

Claims (14)

An information processing device,
A score calculation unit that calculates a posture score representing the degree of good or bad sitting posture of a wheelchair user based on the sitting data acquired by the sensing device.
An information processing device characterized by: The information processing device according to claim 1,
The seating data is seating pressure data that is data regarding the pressure applied to the seating surface.
An information processing device characterized by: The information processing device according to claim 1,
A posture label representing a posture is issued every preset unit time, and a posture score is calculated using a score set for each type of posture label.
An information processing device characterized by: The information processing device according to claim 3,
The score calculation unit issues a posture label representing the posture multiple times per calculation target time.
An information processing device characterized by: The information processing device according to claim 3,
Equipped with an icon determining section,
The score calculation unit counts the number of times each posture label is issued within the calculation target time,
The icon determining unit determines a posture icon at the calculation target time from preset posture icons based on the count result of the score calculating unit.
An information processing device characterized by: The information processing device according to claim 5,
Equipped with a transmitter,
The transmission unit transmits the posture score calculated by the score calculation unit and/or the posture icon determined by the icon determination unit to the user terminal.
An information processing device characterized by: The information processing device according to claim 6,
The score calculation section is
a. The first pressure difference, which is the difference between the pressure applied to the first area of the seating surface and the pressure applied to the second area, calculated based on the seating pressure data a. A second pressure difference, which is the difference between the pressure applied to the third region of the seating surface and the pressure applied to the fourth region, which is calculated based on the seating pressure data c. Determine the posture label to be issued based on one or more criteria of the center of gravity position specified based on the sitting pressure data,
An information processing device characterized by: The information processing device according to claim 1,
comprising an exercise menu determining section that determines an exercise menu based on the posture score calculated by the score calculating section;
An information processing device characterized by: The information processing device according to claim 8,
The exercise menu was set according to the degree of disability of the wheelchair user.
An information processing device characterized by: The information processing device according to claim 9,
The exercise menu is set by taking into account one or more of the wheelchair user's age, gender, and exercise purpose, as well as the degree of the wheelchair user's disability.
An information processing device characterized by: A user terminal used by a user,
Equipped with a receiving section and an output section,
The receiving unit receives a posture score indicating the degree of good or bad sitting posture of the wheelchair user, which is calculated based on the sitting data acquired by the sensing device,
The output unit displays the posture score received by the reception unit.
A user terminal characterized by: An information processing system that determines an exercise menu for wheelchair users,
A sensing device that acquires seating data of a wheelchair user, an information processing device according to any one of claims 1 to 10, and a user terminal according to claim 11 are connected via a communication network. ,
An information processing system characterized by: A program for causing a computer to function as the information processing device according to any one of claims 1 to 10 or the user terminal according to claim 11. A computer-readable storage medium having recorded thereon the program according to claim 13.

Images