KR20130094074A - Apparatus for game using the weight load and the angle of joint for variable - Google Patents

Apparatus for game using the weight load and the angle of joint for variable Download PDF

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Publication number
KR20130094074A
KR20130094074A KR1020120015432A KR20120015432A KR20130094074A KR 20130094074 A KR20130094074 A KR 20130094074A KR 1020120015432 A KR1020120015432 A KR 1020120015432A KR 20120015432 A KR20120015432 A KR 20120015432A KR 20130094074 A KR20130094074 A KR 20130094074A
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South Korea
Prior art keywords
game
joint
angle
joint angle
measuring unit
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KR1020120015432A
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Korean (ko)
Inventor
이양수
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경북대학교 산학협력단
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Priority to KR1020120015432A priority Critical patent/KR20130094074A/en
Publication of KR20130094074A publication Critical patent/KR20130094074A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/20—Input arrangements for video game devices
    • A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
    • A63F13/213—Input arrangements for video game devices characterised by their sensors, purposes or types comprising photodetecting means, e.g. cameras, photodiodes or infrared cells
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/45—Controlling the progress of the video game

Abstract

PURPOSE: A game device using body weight and the angle of joints as variables is provided to measure body weight data and joint angle data according to the movement of user's lower limb and to use measured data as a command for performing a game, thereby inducing interest and concentrating on lower limb rehabilitation. CONSTITUTION: A game device comprises a display unit (400), a game module, and a control unit (300). The display unit shows a user a video game including a game space in which a graphic game element is able to perform at least one game motions by a command inputted from the outside. The game module comprises: a weight measuring unit (100) which is placed on the bottom, contacts the bottom surface of lower limb, and generates measured weight data by measuring a pressure value applied by the lower limb; and a joint angle measuring unit (200) which measures the angle of at least one joints of the lower limb and generates the measured joint angle data. The game module inputs a command for a game motion of the game element. The control unit generates a video game which is required to change the weight and the joint angle. The control unit controls a first game motion of the graphic game element according to the change of the measured pressure value. The control unit also controls a second game motion of the graphic game element according to the change of the measured joint angle value. [Reference numerals] (100) Load measuring unit; (200) Joint angle measuring unit; (201) Knee joint angle measuring unit; (202) Hip joint angle measuring unit; (203) Foot joint angle measuring unit; (300) Control unit; (400) Display unit; (700a) First individual game module; (700b) Second individual game module; (700n) Nth individual game module; (AA) Amplifier; (BB) Communication unit

Description

Game device using weight load and joint angle as variables {APPARATUS FOR GAME USING THE WEIGHT LOAD AND THE ANGLE OF JOINT FOR VARIABLE}

The present invention relates to a game device, and more particularly, to a game device for measuring the weight load and the angle of the joint, and using the measured value as a variable.

The present invention relates to a game device using a variable weight load and the angle of the joint that can be used for rehabilitation training of patients with paralysis symptoms in one leg (hereinafter, hemiplegic patients). In detail, the game device using the weight load and the angle of the joint as a variable simply measures the change in weight and the change in the joint angle on the lower limb, and the game using the change in the weight and the change in the joint angle as variables. Can be performed. In addition, the patient can recognize his or her condition through the game, and during the game, the patient becomes more motivated and interested in rehabilitation training.

Hemiplegia can generally be caused by stroke, traumatic brain injury, or cerebral palsy, and hemiplegia is an exercise paralysis in which one side of the body is paralyzed and the paralyzed muscles cannot be used to generate a force of the appropriate size at the required moment. In order to treat the hemiplegic patient, various methods such as strength training, muscle control training, stretching, and balance training can be used. On the other hand, as a rehabilitation training of upper extremity hemiplegic patients, the treatment to force the use of hemiplegic upper limbs is recognized as the most successful treatment among several rehabilitation treatment methods.

As a prior art of a device for the treatment of forced use of the lower extremities, there is an example of the "Positive Balance Rehabilitation Training Method" of patent application No. 1997-0028382. As shown in Figure 1, the balance trainer 10 which is a device for forced use of hemiplegia in the "posture balance rehabilitation training method" is a portion 11 for measuring the load on both sides of the lower limbs, and the user is not on either side It is composed of a portion 12 for informing the user of the measured value so as to compare whether a relatively large weight is loaded. Since the "posture balance rehabilitation training method" considers only the center movement of the load and does not consider the angle of the joint, it cannot determine which muscles have more severe paralysis symptoms and induce contraction of the paralyzed muscles. There is a problem in that it is not possible to effectively perform the training on the muscles.

In fact, in normal walking, the knee of one lower leg bends about 15 ° to support weight, and the other lower leg is raised. Then, the lower limb supporting the weight reaches the floor and at the same time stretches the knee, and the lower limb is performed by repeating the process of moving the center of gravity forward. Therefore, since the normal walking is performed not only by the center movement of the weight, but also by the occasional change in the joint angle of the lower leg, the angle of the joint is also an important parameter of walking. As an example of the normal gait, the exercise of the lower limb is performed while the center movement of the body weight and the change of the angle of the joint occur together.

However, hemiplegic patients with paraplegia are burdened to use the force to bend the knee due to paralysis, and try to move to the center of the knee without bending, the abnormal walking. In addition, even if the knees are bent forward, even if the center movement forward requires the force to straighten the bent knee, the knee bent the knee may not be stretched to lose the center and fall.

Therefore, the rehabilitation training apparatus for hemiplegic patients with lower limbs should be able to check whether the weight bearing is performed on both lower limbs in a balanced manner, and whether the joints are organically changed with the weight bearing.

As a device capable of measuring and jointly changing joints with weight load and training using the same, as shown in FIG. 2, a three-dimensional gait analysis using a force plate and three or more cameras (20) ). Since the three-dimensional gait analysis analyzes the images taken by the three or more cameras 21 in three dimensions, the process for this is complicated and takes a long time in the analysis process, which does not provide real-time feedback. Since installing the force plate 22 and the camera in the space, there is a disadvantage that requires a large space and expensive equipment. Thus, the 3D gait analysis is not used only for gait training.

In addition, a method of measuring a patient's gait by installing a joint angle measuring device in the lower limb of the patient has been proposed, but the complexity of the configuration of the joint angle measuring device is expensive, and it is difficult to mount and remove the joint angle measuring device to the patient. There is this.

Therefore, the weight load and joint change of the user can be measured and displayed to the user in real time, and the game can be played using the same, but the weight load and the angle of the joint that can be easily configured with low-cost equipment as a variable You need a game device.

The present invention is to solve the problems of the prior art, to measure the state of the lower extremity hemiplegia by measuring the weight load and the angle of the joint, and to propose a game device using the measured weight load data and the angle data of the joint In addition, the present invention, in measuring the angle of the joint, by directly measuring the angle of the joint to any one or more of the knee joint, ankle joint, hip joint, or indirectly by measuring the angle of the lower joint joint It is an object of the present invention to propose a game device capable of measuring a paralyzed muscle and performing a game using the measured weight load data and joint angle data.

In addition, the present invention in the game device using the weight load and the angle of the joint, by measuring the movement of the joint in two dimensions to display the current state of the patient in real time, the user is trying to recognize and improve their state The purpose is to enable feedback to be carried out through the process of doing so. It is also an object of the present invention to provide a game device that can measure the movement of the joint using a low-cost device of a simple configuration.

In addition, the present invention, after mounting the game device, by using the user's left and right movement of the weight and the angle of the lower limb when the user performs the game and training through it to induce the user's interest and to rehabilitation training The purpose is to propose a more immersive game device.

In order to solve the above problems, the present invention, a user of a video game including a graphic game element and a game space configured to perform at least one game operation by a command inputted from the outside of the graphic game element A display unit for showing; A load measuring part placed on the bottom of the lower leg and in contact with the lower surface of the lower leg to measure the pressure applied by the lower leg to generate measured load data, and measuring joint angle values of at least one joint of the lower leg. A personal game module including a joint angle measurer for generating measured joint angle data, and for inputting the command for the game operation of the game element; Generate the video game required to vary the load applied to the lower limb and the lower limb joint angle, and control the first game motion of the graphical game element of the video game in accordance with the change in the measured pressure value; And a controller configured to control a second game operation of the graphic game element of the video game according to the measured change in the leg joint angle value.

The joint angle measuring unit may include a goniometer attached to at least one joint of the lower limb, the knee angle measuring unit measuring the angle of the knee joint, the ankle joint angle measuring unit and the hip joint angle measuring the angle of the ankle joint. It may include at least one of the hip joint angle measuring unit.

In addition, the joint angle measuring unit may indirectly measure the reduction and enlargement of the lower leg joint angle, wherein the joint angle measuring unit is a tilting sensor or a gyro sensor attached to the lower or thigh. It may be any one of an accelerometer attached to the knee joint, a magnetometer measuring the distance between the reference point and a specific part of the user's body or an ultrasonic range finder.

The first game operation may be a movement in one direction of the graphic game element in the game space and a movement in the opposite direction.

In addition, the personal game module is provided with at least two, each of the personal game module is connected to one control unit, it is configured to allow at least two or more users to play the same game together using the personal game module individually Can be.

In addition, the present invention, the display unit for showing a video game including a graphic game element and a game space that is configured to perform at least one game operation by the command input from the outside; A load measuring part placed on the bottom of the lower leg, in contact with the lower surface of the lower leg, measuring a pressure value applied by the lower leg to generate measured load data, and measuring the angle value of the lower leg to measure the measured angle data. A personal game module including an angle measuring unit for generating the input of the command for the game operation of the game element; Generate the video game required to vary the load applied to the lower limb and the lower limb joint angle, and control the first game motion of the graphical game element of the video game in accordance with the change in the measured pressure value; And a controller for controlling a second game operation of the graphic game element of the video game according to the measured change of the lower leg angle value.

The angle measuring unit includes a goniometer attached to at least one joint, the knee angle measuring unit for measuring the angle of the knee joint, the ankle joint angle measuring unit for measuring the angle of the ankle joint and hip joint measuring the angle of the hip joint It may include any one or more of the angle measuring unit.

In addition, the angle measuring unit may indirectly measure the reduction and enlargement of the angle of the lower limb. The angle measuring unit may include a tilting sensor or a gyro sensor attached to the lower leg or the thigh, an accelerometer attached to the knee joint, a magnetometer measuring a distance between a reference point and a specific part of the user's body or It may be any one of the ultrasonic range finder.

The first game operation may be a movement in one direction of the graphic game element in the game space and a movement in the opposite direction.

In addition, the personal game module is provided with at least two, each of the personal game module is connected to one control unit, it is configured to allow at least two or more users to play the same game together using the personal game module individually Can be.

The present invention also provides a display unit for displaying a video game to a user, the video game including at least one graphic game element and a game space configured to perform at least one game operation by a command inputted from the outside; A load measuring unit placed on the bottom of the lower leg and in contact with the lower surface of the lower leg to measure the pressure value applied by the lower leg to generate measured load data; A joint angle measuring unit configured to directly measure joint angle values of at least one of the knee joints, ankle joints, and buttocks of the lower leg or indirectly measure the angles of the lower leg joints to generate measured joint angle data; And generate the video game required to vary the load applied to the lower extremity and the joint angle of one of the joints of the lower extremity and in accordance with the change in the measured pressure value of the first graphical game element of the video game. And a controller for controlling a first game motion and controlling a second game motion of a second graphic game element of the video game according to the measured change in the joint angle.

The joint angle measuring unit may include at least one of a knee angle measuring unit measuring an angle of a knee joint, an ankle joint measuring unit measuring an ankle joint angle, and a hip joint angle measuring unit measuring an angle of a hip joint. .

The first graphic game element and the second graphic game element may be the same game element, and the first game action and the second game action may be different from each other.

In addition, the first graphic game element may be a character and the second graphic game element may be a game element operated by the character.

In addition, the first game operation may be a movement in one direction of the graphic game element in the game space and a movement in the opposite direction.

The control unit may be configured to generate a user's exercise data as a result of a video game and display it on the display unit.

In addition, the joint angle measuring unit may indirectly measure the reduction and enlargement of the lower leg joint angle, wherein the joint angle measuring unit, a tilting sensor (tilting sensor) attached to the lower leg or thigh, an accelerometer (accelerometer) attached to the knee joint The apparatus may be a magnetometer or an ultrasonic range finder for measuring the distance between the reference point and a specific part of the user's body.

According to a game apparatus according to an embodiment of the present invention, load data and joint angle data are measured according to the movement of the lower limb of the user, and the measured data act as a command for game play, so that the user is more immersed with interest. There is an advantage to work on rehabilitation training.

According to the game device according to an embodiment of the present invention, the load data and the joint angle data is measured according to the movement of the user's lower limb, and the game element of the game element is performed in real time based on the measured data. There is an advantage in that real-time feedback on movement is possible.

According to the game device according to an embodiment of the present invention, the joint angle value of the lower limb of the user can be directly measured, and indirectly measured by using a load measuring unit having a simple structure. It has the advantage of being simpler and cheaper. In particular, since the configuration of the joint angle measuring unit becomes simple, the user can easily mount and detach the joint angle measuring unit, thereby reducing the inconvenience of the conventional method.

According to the game device according to an embodiment of the present invention, since the game can be performed in connection with another user, competition is induced, thereby increasing the immersion in training than when training alone.

1 illustrates a state of using a rehabilitation trainer using a weight load of the prior art.
2 is a view showing a three-dimensional gait analysis using three cameras and a force plate in the prior art.
3 is a diagram illustrating a configuration of a game device according to an embodiment of the present invention.
4 is a diagram illustrating a configuration of a game device according to another embodiment of the present invention.
5A and 5B show a force plate and a scale as load measuring units.
6 shows an electric goniometer as a joint angle measuring unit.
7 illustrates a variable resistance goniometer as a joint angle measuring unit.
FIG. 8 illustrates that an electric goniometer is used for the ankle joint and the hip joint as a joint angle measuring unit, and a variable resistance goniometer is used for the knee joint.
9 shows a motion capture goniometer as a joint angle measurer.
10 illustrates a capture device as a joint angle measurer.
FIG. 11 is a diagram illustrating a skeletal model of a patient formed using the depth image acquired by the capture device shown in FIG. 10.
12 illustrates a tilt sensor as a joint angle measuring unit.
13 shows an accelerometer as a joint angle measuring unit.
FIG. 14 illustrates an ultrasonic range finder as a joint angle measurer. FIG. 15 illustrates a flowchart of the controller.
16 is a diagram illustrating an example in which a first embodiment of a game implemented by a game device according to an embodiment of the present invention is displayed on a display unit.
17 is a diagram illustrating an example in which a second embodiment of a game implemented by a game device according to an embodiment of the present invention is displayed on a display unit.
18 is a diagram illustrating an example in which a third embodiment of a game implemented by a game device according to an embodiment of the present invention is displayed on a display unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

3 is a view showing the configuration of a game device according to an embodiment of the present invention, Figure 4 is a view showing the configuration of a game device according to another embodiment of the present invention, the game device of FIG. It is a game apparatus, and the game apparatus of FIG. 4 is a single game apparatus.

Referring to FIG. 3, a game apparatus according to an embodiment of the present invention includes a plurality of personal game modules 700, a controller 300, and a display unit 400.

The personal game module 700 is an input means for inputting a specific command for performing a game by detecting a user's training motion. The personal game module 700 includes a load measuring unit 100 and a joint angle measuring unit 200. The game device according to the present invention may generate a game using data input by the personal game module 700 as a game variable.

3 and 4, in the game device according to the present invention, the multiplayer game device and the single player game device differ only in the number of individual game modules. That is, the multiplayer game apparatus shown in FIG. 3 is provided with a plurality of personal game modules 700 in order for a plurality of users to play a game together. Since two or more personal game modules 700 are provided, two or more people may simultaneously play a game. On the other hand, the single-player game device shown in Figure 4 is configured so that only one individual game module is provided so that one person can play the game alone.

When the game apparatus according to the present invention is configured for multiplayer, the personal game module 700 is provided in plural to be used individually by a plurality of game users, and the control unit 300 is provided with each individual game module 700. Connected by wire or wireless. The display unit 400 may be provided for each user, or multiple users may share one display unit 400.

Hereinafter, the function of each component will be described in detail.

The load measuring unit 100 is a part for measuring a weight load that changes according to a user's movement, and is formed at a position in contact with the lower surface of the lower leg so that the weight load applied to the lower leg can be measured. The load measuring unit 100 may be formed to measure for both lower limbs, on the other hand, it may be formed to measure only for one lower limb, where one lower limb may be paralyzed.

As the load measuring unit 100, as shown in FIG. 5A, a force plate 110 including one or more pressure sensors that directly or indirectly contact the lower surface of the lower surface may be used. The pressure sensor may change its state by pressure, and measure the weight of the body loaded on the lower leg through the changed state of the pressure sensor. In addition, by forming at least one pressure sensor on each lower portion of the lower surface on the lower surface of the lower leg, it is possible to measure the weight loaded on each portion of the lower surface of the lower leg.

In addition, as shown in Figure 5 (b), the load measuring unit 100, a scale 120 including an elastic mechanism that directly or indirectly contact the lower surface of the lower body, an electronic scale using a load cell, strain gauge ( strain gauges can be used. The elastic mechanism included in the scale 120 may change its state by weight load on the lower limb and measure the weight of the weight on the lower limb. The changing state of the elastic mechanism may be volume or length, but is not limited to the above examples. The joint angle measuring unit 200 may directly or indirectly measure the angle of the lower limb joint.

Joint angle measuring unit 200 of the method of directly measuring the angle of the lower limb joint is a hip joint angle measuring unit 202 for measuring the angle of the hip joint, including the knee angle measuring unit 201 for measuring the angle of the knee joint, It includes any one or more of the ankle joint angle measuring unit 203 for measuring the angle of the ankle joint.

In this case, the joint angle measuring unit 200 may use an electric goniometer 210, a variable resistance goniometer 220, and a motion capture goniometer 230 to measure angles of joints (knee joints, ankle joints, and hip joints). have.

6 illustrates an electric goniometer 210 that can be used as the joint angle measuring unit 200. As shown in FIG. 6, the electric goniometer 210 has a flexible bar 211 formed of a flexible material so that the joint can be bent together as the joint is bent, and the flexible bar 211 is bent together with the joint. And an attachment support 212 connected with a portion of the lower limb and the flexible bar 211 so that it can be squeezed. The attachment support 212 of the electric goniometer 210 is attached to the upper and lower portions of the joint to be measured, and is also connected to the flexible bar 211 located in the same direction as the joint to be measured.

The knee joint angle measuring unit 201 forms the attachment support 212 on the thigh and the calf, and connects the flexible support 211 positioned in the same direction as the direction in which the attachment support 212 and the knee are bent, and the knee joint is bent. The angle of the knee joint is measured through the degree of bending of the flexible bar 211 bent together. The ankle joint angle measuring unit 203 configures the attachment support 212 in the calf and the foot, and the flexible bar 211 connected to the attachment support 212 is bent together as the angle of the ankle is changed to the flexible bar 211. Measure the angle of the ankle through bending. In addition, the hip joint angle measuring unit 202 attaches the attachment support 212 to the waist and thighs, and the flexible bar 211 and the attachment support (12) positioned in the same direction as the angle of the hip joint changed when the leg is lifted ( 212), the angle of the hip joint is measured by the degree of bending of the flexible bar (211).

7 illustrates a variable resistance goniometer 220 used as a joint angle measuring unit 200. As shown in FIG. 7, the variable resistance goniometer 220 includes a variable resistor 221 whose resistance value changes according to the angle of the joint, and an attachment support 222 for fixing the variable resistor 221 to the lower surface. do. The attachment support 222 is a thigh and calf in the case of the knee joint angle measuring unit 201, the calf and foot in the case of the ankle joint angle measuring unit 203, such as the attachment support 212 of the electrometer (210), Hip joint angle measurement unit 202 is located on the waist and thighs. The variable resistor 221 included in the variable resistance goniometer 220 is formed such that the resistance adjusting unit for changing the resistance moves together with the joint, and the resistance value of the variable resistor 221 changes as the angle of the joint changes. As a result, the angle of the joint may be measured through a resistance value that changes according to the angle of the joint.

In addition, as illustrated in FIG. 8, the joint angle measuring unit 200 may use a different goniometer used in the knee joint and hip joint angle measuring unit. For example, the knee joint angle measuring unit 201 may be used as the variable resistance goniometer 220, and the ankle joint and hip joint angle measuring units 203 and 202 may be used as the electric angle measuring machine 210. This is only an example, and it is obvious that the joint angle measuring unit 200 may be used in other combinations.

9 illustrates the use of the motion capture goniometer 230 as the joint angle measurement unit 200. The motion capture goniometer 230 includes a patch 231 that can be attached to the joint and the upper and lower portions of the joint, and a camera 232 that can recognize the position of the patch 231. Accordingly, the joint angle measuring unit 200 recognizes the position of the patch 231 attached to the lower leg through the camera 232, and recognizes the angle of the joint that is changed as the lower leg moves, and determines the position of the joint through the position of the patch 231. The angle can be measured. The location of the patch 231 depends on the knee, ankle and hip angle measurements. For example, the knee joint angle measuring unit 201 is attached to the thigh and the calf of the knee and the upper and lower portions of the knee joint, and the joint angle measurement unit 203 is attached to the ankle joint, foot and calf. In the case of the hip joint angle measuring unit 202, the patch 231 is attached to the hip joint, waist and thigh. In addition, the patch 231 is preferably attached to the side where the camera 232 is visible, so that the camera 232 can recognize, and more preferably, the joint is moved when lifting the lower limb and when the knee is bent. In order to be able to measure the changing angle, it is desirable to attach it to the side of the lower leg.

FIG. 13 shows a capture device as a joint angle measurer, and FIG. 14 shows a skeletal model of a patient formed using a depth image obtained by the capture device shown in FIG. 13. In the game device according to the present embodiment, the measurement of the joint angle of one lower leg of the rehabilitation patient and the detection of the position or motion of the other lower leg of the rehabilitation patient are implemented by the capture device 280. The capture device 280 of this embodiment is used to visually monitor the lower extremity of the patient. Capture device 280 is configured to acquire depth images of the patient. Capture device 280 may be configured to capture video with depth information via any suitable technique, such as time-of-flight (TOF), structured light, stereo images, and the like. Thus, capture device 280 may include a depth camera, a video camera, a stereo camera, and / or other suitable capture devices. In addition, the capture device 280 may include two or more physically separated cameras to view the patient from different angles to obtain visual stereo data. The depth image may comprise a plurality of observed pixels, each observed pixel having an observed depth value. The observed depth value includes depth information of the patient observed from the capture device 280. The controller 300 may be configured to receive a depth image from the capture device 280 to represent the lower limb of the patient as a model. A model that includes two or more body parts may also include one or more joints j1-j7. Each joint may allow one or more body parts to move relative to one or more other body parts. In addition, each body part of the model may include one or more structural members, ie bones, where the joints are located at the intersection of adjacent bones. Some bones may correspond to the anatomical bones of the patient and some bones may not have corresponding anatomical bones of the patient. Bones and joints may collectively construct a skeletal model, which may be a component of the model. The skeletal model can include one or more skeletal members and joints between adjacent skeletal members for each body part. When the patient undergoes rehabilitation training, the capture device 280 acquires a depth image of the patient's body, including both sides of the patient. The controller 300 forms the skeleton model 290 of the patient using the depth image acquired by the capture device 280. In addition, the controller 300 may detect the skeletal model 290 of the formed patient to sense the angle of one lower leg and the position or motion of the other lower leg.

Meanwhile, the joint angle measuring unit 200 indirectly measures the angle of the lower limb joint, such as a tilting sensor, a gyro sensor, an accelerometer, a magnetic sensor, an ultrasonic rangefinder, and the like. This can be used.

FIG. 12 shows an inclination sensor as a joint angle measuring unit, FIG. 13 shows an accelerometer as a joint angle measuring unit, and FIG. 14 shows an ultrasonic range finder as a joint angle measuring unit.

Referring to FIG. 12, the joint angle of the lower limb may be indirectly measured by measuring the inclination of the thigh or the lower thigh using the inclination sensor 240 or the gyro sensor. To this end, the tilt sensor 240 or the gyro sensor may be attached to a part of the thigh or the lower thigh. When the user bends or unfolds the lower extremity joint while the user attaches the tilt sensor 240 or the gyro sensor to the thigh or the lower leg, the tilt of the attachment site is measured by the tilt sensor 240 or the gyro sensor and the lower extremity is measured using the measured value. The angle of the joint can be calculated.

Referring to FIG. 13, an angle of the lower leg may be indirectly measured by attaching an accelerometer to a portion of the lower leg to measure acceleration of the lower leg. The accelerometer may be attached to various parts of the lower limb, but is preferably attached to the front of the knee joint. When the lower limb is bent, the knee joint moves forward, and when the lower limb is extended, the knee joint moves backward. Therefore, the knee joint angle can be indirectly measured by measuring the acceleration of the knee joint using an accelerometer.

In addition, when the foot is in contact with the floor, the body moves downward when the lower limb is bent and the body moves upward when the lower limb is unfolded. Therefore, the distance between the reference point and a specific part of the user's body is measured using a magnetic sensor and an ultrasonic rangefinder. By measuring, the angle of the lower limb joint can be measured indirectly.

Specifically, in order to indirectly measure the angle of the joint using a magnetometer, a permanent magnet is attached to a specific part of the user's body, such as a waist, and the magnetometer is measured outside the hemiplegic lower extremity. When the lower leg is bent, the distance between the permanent magnet and the magnetometer is close, so the magnetic force is increased. On the contrary, the distance between the magnet and the magnetometer is shortened, so the magnetic force is reduced. By using this change in magnetic force, the absolute distance between the magnetometer and the permanent magnet can be measured or the relative movement between the magnetometer and the permanent magnet can be measured.

In the case of using an ultrasonic range finder as the joint angle measuring unit, the angle of the lower limb joint may be indirectly measured. Referring to FIG. 14, when the ultrasound generator 261 is installed on the floor and the user bends or stretches the lower limbs while the ultrasound reflector 262 is attached to a specific part of the body, for example, the waist, the ultrasound generator 261 and the ultrasound reflector 262 are provided. The distance between) gets closer or farther away. Thus, by measuring the distance measured by the ultrasonic rangefinder 230 according to the change in the angle of the lower limb joint of the user can be indirectly measured the change in the angle of the lower limb joint.

As described above, the load measuring unit 100 measures the weight load that changes according to the movement of the user, respectively, the joint angle measuring unit 200 by measuring the angle of the lower joint, the load measuring unit 100 and The joint angle measuring unit 200 may be an input means for playing a game.

In addition, the personal game module 700 of the game device according to the present invention is an amplifier and converter 500 for converting data measured in real time in the load measuring unit 100 and the joint angle measuring unit 200 into an electrical signal. It may further include. The amplifier and converter 500 may be included in the load measuring part 100 and the joint angle measuring part 200, but may be formed as separate parts. In addition, the amplifier and the converter 500 may be included in the controller 300.

The controller 300 generates the result data to be displayed on the display unit 400 through the measurement data measured by the load measuring unit 100 and the joint angle measuring unit 200. In addition, the controller 300 stores a game program that a user plays. The controller 300 may store two or more game programs, and the user may select and play any one of the stored game programs. The game stored in the controller 300 may be an existing game, or may be a new game that does not exist. The controller 300 may add a new game or delete an existing game as needed. The controller 300 collects measurement data measured by the load measuring unit 100 and the joint angle measuring unit 200 of the user, generates the result data using the collected data, and uses the result data as a game variable. The game program is driven, and output information of the game program is transmitted to the display unit 400.

15 is a flowchart illustrating a process of generating result data in the controller 300.

The controller 300 controls the load measuring unit 100 and the joint angle measuring unit 200 to simultaneously read or simultaneously measure values from the load measuring unit 100 and the joint angle measuring unit 200. The value read from the measurement unit 100 is the load data of the measurement data, and the value read from the joint angle measurement unit 200 is generated as the joint angle data of the measurement data. As described above, since the joint angle measuring unit 200 includes one or more of the knee joint angle measuring unit, the ankle joint angle measuring unit 203, and the hip joint angle measuring unit, the control unit 300 according to each of the knee joint of the measured data Generated as angle data, ankle joint angle data, and hip joint angle data.

In addition, the control unit 300 counts until the load data of the measurement data is substantially the same value thereafter, and generates the time up to this time as the time data of the measurement data. The reason for generating the temporal data is that the hemiplegic limb movement time may be different from the normal limb movement time. For example, the hemiplegia can be shorter than the time the normal lower extremity moves or may take more time because the hemiplegia is too hard and difficult to move when walking. Therefore, the game apparatus of the present invention measures the time during the movement of the hemiplegic lower limb and generates time data of the measurement data so that it can be compared with the time during the normal lower limb movement. Thereafter, the controller generates the time data of the generated measurement data as the time comparison data from the time data of the reference data.

The reference data is reference data for comparing measured data, and similar to the measured data including any one or more of load data, knee angle data, ankle joint angle data, hip joint angle data, and time data, reference data, load data, One or more of knee joint angle data, ankle joint angle data, hip joint angle data, and time data. The reference data may be measured or predicted data generated from a lower extremity of a normal person similar to the basic information of a user previously stored in a device, or measured in real time from a lower extremity, which is opposite to the hemiplegic lower extremity that generates the measured data. May be data. If the data are measured in real time in normal lower limbs, either the measured data or the reference data is selected to compare when both lower limbs are in the same state. It is desirable to compare the current values of the data.

The controller 300 may generate load comparison data and joint angle comparison data by comparing the load data and the joint angle data of the measured data with the load data and the joint angle data of the reference data. As described above, the joint angle data includes any one or more of knee joint angle data, ankle joint angle data, and hip joint angle data, and accordingly, the joint angle comparison data includes knee joint angle comparison data, ankle joint angle comparison data, and hip joint angle comparison. It includes at least one of the data.

In order to generate the load comparison data and the joint angle comparison data, when comparing the measured data with the reference data, it is only necessary to check whether the two are similar, so that one or more of subtraction and division can be selected and used. In the case of subtraction, the difference is generated as comparison data, and in the case of division, the ratio is generated as comparison data. In order to generate the comparative data in the present invention, it is obvious that it is possible to use both of the above methods or to select one of them.

Thereafter, the controller 300 generates state data that can numerically know the degree of hemiplegia through the load comparison data and the joint angle comparison data. The state data may be generated by adding or multiplying the load comparison data and the joint angle comparison data. In addition, the operation for obtaining the state data is merely an example, and it is obvious that the state data can be obtained using other calculation methods.

Meanwhile, the controller 300 serves as a game server that provides a game environment so that a user can play a game with another user using the personal game module 700. All users may play the same game, or each user may play a different kind of game. Meanwhile, although FIG. 3 illustrates that a plurality of personal game modules 700 are provided in one controller 300, one controller 300 may be provided per individual game module 700, and each controller ( 300 may be directly connected to each other or may be connected through a server.

The game program referred to in the present invention refers to a game that a user can play alone or with another person using the personal game module 700. In the game that can be controlled by the controller 300 of the present invention, there is at least one game element or game character controlled by the controller 300, and the position or movement of each character or control of the game element operated by the character is controlled by the game. It may be a game such as sports, a strategy simulation game, a casual game, and the like, which are important factors for the situation, and may be configured to control the movement of the character according to the user's rehabilitation exercise according to the current game situation. Here, the game element operated by the character means a weapon or a tool used by the character. A simulation game is a game in which a simulated situation similar to reality is played on a video screen or a computer, for example, a car driving game, an airplane control game, and a simulation battle game. On the other hand, casual game refers to a game operated by simple game rules as opposed to a strategy simulation game that requires a long period of skill or a high level of game operation skills. Examples of such casual games include puzzle games and racking games. However, the type of game that can be controlled by the control unit 300 according to the present invention is not limited to the above-described game type, and in view of the spirit of the present invention, the control unit 300 generates a character according to the user's rehabilitation exercise according to the game situation. The game that can control the movement of the is included in the scope of the present invention.

The game controlled by the controller 300 according to the present invention may include a game element implemented as a graphic and a game space configured to perform a specific game operation.

The game element is an element constituting a game in a virtual game space, and means that a specific game operation can be performed by a user. The game element may be implemented in various forms according to the type of the game executed by the controller. For example, a game element may be a user controlled car in a car racing game, a puzzle piece in a puzzle game, a cursor in a simulation game to select a specific character or a specific part of a game screen, In a martial arts game you can become a character who fights.

The game action performed by the game element refers to any action performed by the user's intention and performed by the game element in the game space. For example, a game action performed by a game element may be a direction change or acceleration and deceleration in a left and right direction of a car controlled by a user in a car racing game, and a puzzle piece may be moved or puzzled in a specific direction in a puzzle game. It can be a change of direction of a piece, in a simulation game it can be a movement of a cursor in a specific direction or a selection of a specific character or menu, and in a martial art game it can be a movement of a fighting character, a punch or a kick. .

In the case of the game apparatus of the present invention, the load data measured by the load measuring unit 100 and the joint angle data measured by the joint angle measuring unit 200 may serve as commands input for the game operation of the game element. That is, the load data may act as a first command input for the first game motion of the game element, and the joint angle data may act as a second command input for the second game motion of the game element. Accordingly, the game element of the game implemented by the controller 300 may perform at least one game operation by the user's rehabilitation operation, and the complex various rehabilitation operation of the user may act as a command of various game operations of the game element. Can be. When a specific command is input by a user, the controller stores a specific game action of a game element that is performed in response to a specific command so that the game element can perform a specific game action. By instruction, game elements on the game perform specific game actions.

In another embodiment of the present invention, the control unit calculates the amount of exercise of the user using the data measured while the video game is in progress, and based on this display the amount of exercise of the user as a result of the video game or rehabilitation exercise on the display unit It may include modules that allow it to be.

The display unit 400 outputs the game information generated by the controller 300 as an image and displays the image to the user. The display unit 400 may display basic information including a user's name, age, weight, height, and the like on the game screen to the user. In addition, the display unit 400 displays the result data generated by the control unit 300 to the user. The display unit 400 may use a dedicated monitor, an electronic board, an LED window, a general computer monitor, and the like, which can display contents to be displayed to a user in a game device.

Hereinafter, specific embodiments of the game mentioned in the present invention will be described.

A first example of a game that can be implemented by the game device of the present invention is a game similar to Tetris.

Referring to FIG. 16, a game similar to the Tetris (hereinafter referred to as a brick building game) aims to stack bricks so that no gap is formed between adjacent bricks. On the screen of the display unit 400, a brick 424 and a space 422 for stacking the bricks 424 are displayed. The brick 424 can move in the left and right directions and is configured to rotate clockwise or counterclockwise. In the present game, the game element is a brick 424, and the game action of the game element is the left and right movement of the brick 424 and the rotation in the clockwise or counterclockwise direction.

When the brick 424 begins to descend from the top of the space 422 of the game screen, the user determines which part of the space 422 in which direction to stack the brick. As a method of moving the brick 424 from the current position to the left and right directions, when the user moves the weight to the left lower leg, the brick 424 moves to the left, and if the user moves the weight to the right lower leg, the brick 424 moves to the right. It can be configured to. Further, as a method of rotating the direction of the brick 424, it may be configured to rotate the brick 424 by changing the angle of the joint of the hemiplegic lower limb. If the brick 424 is piled up without empty space, the game continues by removing bricks of completely stacked layers without empty space, but when the space 422 where the space for stacking bricks is full becomes full, the game is full. It ends.

FIG. 17 illustrates a display screen on which a game is displayed to give a second embodiment of a game that can be executed using the present invention. The game shown in FIG. 17 is a game in which an obstacle is jumped while moving along a predetermined route on a virtual track.

The display unit 400 screen includes a character 411 controlled by a user in a virtual space of the game, a character 412 controlled by another user or a computer, a track 414 on which the character will travel, and a character. The obstacle 416 to jump and jump is displayed. The user may move the weight left and right to move the character 411 on the screen from side to side, and maintain the state in which the weight is moved to continue the movement in the left and right directions of the character 411. At this time, the distance in which the character 411 moves from side to side at a time is proportional to the size of the weight on the leg, the movement in one direction of the character 411 in proportion to the time to maintain the weight on one leg. In addition, the user may change the angle of the joint so that the character 411 jumps to jump over the obstacle, wherein the jump height of the character 411 is proportional to the amount of change in the angle of the joint of the user. That is, in this game, the game element is the character 411 controlled by the user, and the game action of the game element performed by the user's intention is to move the character 411 in the left and right directions and to maintain the movement in one direction. And jump. Depending on the game settings, the character 411 can be configured to enable a game action that pushes or grabs another character in order to hinder the running of another character 412, which may be a user's weight shift and joint angle change. Can be set to be implemented by combining.

When the track 414 on the display 400 screen approaches the user side, i.e., when the screen scrolls down, the user left the weight along the direction in which the track 414 is bent so that the character 411 does not leave the track 414. Alternatively, the character 411 is moved left and right by moving to the right. In addition, the user changes the angle of the joint so that the character 411 jumps over the obstacle 416. If the character 411 does not leave the track 414 or fail to jump over the obstacle 416, the forward of the character 411 may be delayed or set to start again from the starting line. In addition, by varying the angle of the joint continuously can be configured to throw a weapon to another character (412). In other words, the weapon is a game element operated by the character 411.

When the user plays the game alone, the game may be progressed in a manner of shortening the track completion time, and when the user of the multiplayer plays the same game, the game may be progressed in a ranking competition manner.

As a third embodiment of the game that can be implemented by the game device of the present invention, there is a fruit picking game as shown in FIG. One or more fruits 432 and a hand-shaped cursor 434 are displayed on the display unit 400, and the cursor moves left and right by left and right movement of the weight, and the cursor moves downward or upward by reducing and expanding the joint angle of the lower limb. It is configured to move. After the predetermined time passes after the cursor 434 moves to the fruit 432 by the user's operation, the fruit 432 disappears and the score is increased. As the patient's ability to play games improves, the fruits displayed on the screen in order to increase the training difficulty are gradually changed from a smaller size, such as watermelon to apple. As described above, various games may be implemented by the game device of the present invention as well as the track game and the brick-laying game as an example to describe a game that may be implemented by the game device of the present invention. When a user performs leg training through the device, interest is triggered and the user can immerse themselves without getting tired of the training.

In addition, the data obtained through the game can be used to evaluate the user's lower limb rehabilitation training performance. For example, in a track game, the number of failures to pass an obstacle, the number of track departures, and the time to complete a track may be the evaluation criteria of rehabilitation training. In the brick building game, the duration of the rehabilitation training and the number of stacked bricks may be the evaluation criteria. Can be. Such game performance content may be output to the user after the game ends, and at this time, the exercise amount information of the user may be output together.

As described above, the game device proposed by the present invention not only checks the weight load on the lower limbs, but also measures the angle of a joint including any one or more of the knee, ankle, and hip joints, Analyze the user's hemiplegic status. This can improve the tendency of patients with hemiplegic patients who want to move without using joints, and can train to move joints and weights while performing organically.

In addition, the present invention is to combine the game with the lower limb rehabilitation training, the user may be interested in the training, can induce the user to perform the repetitive operation without boring.

The game device may be a target for hemiplegic patients, and furthermore, it is natural in view of the object of the present invention that a patient with both paraplegics or a patient without paralysis but with poor balance ability.

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. . Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

100: load measurement unit 200: joint angle measurement unit
300: control unit 400: display unit
500: Amplifiers and Converters 600: Personal Game Modules

Claims (28)

A display unit for displaying a video game to a user, wherein the video game includes a graphic game element and a game space configured to perform at least one game operation by a command inputted from the outside;
A load measuring part placed on the bottom of the lower leg and in contact with the lower surface of the lower leg to measure the pressure applied by the lower leg to generate measured load data, and measuring joint angle values of at least one joint of the lower leg. A personal game module including a joint angle measurer for generating measured joint angle data, and for inputting the command for the game operation of the game element; And
Generate the video game required to vary the load applied to the lower limb and the lower limb joint angle, and control the first game motion of the graphical game element of the video game in accordance with the change in the measured pressure value, And a controller configured to control a second game operation of the graphic game element of the video game according to the measured change in the leg joint angle value. The method of claim 1,
The joint angle measuring unit,
A knee angle measurement unit including a goniometer attached to at least one joint of the lower limb, a knee angle measuring unit for measuring the angle of the knee joint, ankle joint angle measuring unit for measuring the angle of the ankle joint and hip joint angle measurement for measuring the angle of the hip joint A game device comprising at least one of the parts. The method of claim 1,
The joint angle measuring unit,
And a capture device to obtain a depth image of the lower limb. The method of claim 3,
The controller is configured to receive the depth image from the capture device to form a model of the lower limb. 5. The method of claim 4,
The controller is configured to calculate the angle of the lower limb by analyzing the model. The method of claim 3,
The capture device comprises a depth camera (depth camera). The method of claim 1,
The joint angle measuring unit is a game device, characterized in that for indirectly measuring the reduction and enlargement of the lower joint angle. The method of claim 7, wherein
The joint angle measuring unit,
Either a tilting or gyro sensor attached to the lower or thigh, an accelerometer attached to the knee joint, or a magnetometer or ultrasonic rangefinder that measures the distance between the reference point and a specific part of the user's body Game device. The method of claim 1,
And the first game operation is a movement in one direction of the graphic game element in the game space and a movement in the opposite direction. The method of claim 1,
At least two personal game modules are provided,
Each said personal game module is connected with one control part,
At least two users can play the same game together using the personal game module individually. A display unit for displaying a video game to a user, wherein the video game includes a graphic game element and a game space configured to perform at least one game operation by a command inputted from the outside;
A load measuring part placed on the bottom of the lower leg, in contact with the lower surface of the lower leg, measuring a pressure value applied by the lower leg to generate measured load data, and measuring the angle value of the lower leg to measure the measured angle data. A personal game module including an angle measuring unit for generating the input of the command for the game operation of the game element; And
Generate the video game required to vary the load applied to the lower limb and the lower limb joint angle, and control the first game motion of the graphical game element of the video game in accordance with the change in the measured pressure value, And a controller configured to control a second game operation of the graphic game element of the video game according to the measured change in the lower leg angle value. 12. The method of claim 11,
Wherein the angle measuring unit comprises:
A knee angle measurement unit including a goniometer attached to at least one joint, and measuring the angle of the knee joint, ankle joint angle measuring unit for measuring the angle of the ankle joint and hip joint angle measuring unit for measuring the angle of the hip joint A gaming device comprising one or more. 12. The method of claim 11,
Wherein the angle measuring unit comprises:
And a capture device to obtain a depth image of the lower limb. The method of claim 13,
The capture device comprises a depth camera (depth camera). 12. The method of claim 11,
The angle measuring unit indirectly measures the reduction and enlargement of the angle of the lower limb. 16. The method of claim 15,
The angle measuring unit may include a tilting sensor or a gyro sensor attached to the lower or thigh, an accelerometer attached to the knee joint, a magnetometer or an ultrasonic distance measuring a distance between a reference point and a specific part of the user's body. Game device, characterized in that any one of the measuring device. 12. The method of claim 11,
And the first game operation is a movement in one direction of the graphic game element in the game space and a movement in the opposite direction. 12. The method of claim 11,
At least two personal game modules are provided,
Each said personal game module is connected with one control part,
At least two users can play the same game together using the personal game module individually. A display unit configured to display a video game to a user, the video game including at least one graphic game element and a game space configured to perform at least one game operation by a command input from the outside;
A load measuring unit placed on the bottom of the lower leg and in contact with the lower surface of the lower leg to measure the pressure value applied by the lower leg to generate measured load data;
A joint angle measuring unit configured to directly measure joint angle values of at least one of the knee joints, ankle joints, and buttocks of the lower leg or indirectly measure the angles of the lower leg joints to generate measured joint angle data; And
Generate the video game required to vary the load applied to the lower extremity and the joint angle of one of the joints of the lower extremity, and according to the change of the measured pressure value, And a controller for controlling a game motion and controlling a second game motion of a second graphic game element of the video game according to the measured change in the joint angle. 20. The method of claim 19,
The joint angle measuring unit may include at least one of a knee angle measuring unit measuring an angle of a knee joint, an ankle joint measuring unit measuring an ankle joint angle, and a hip joint angle measuring unit measuring an angle of a hip joint. Game console. 20. The method of claim 19,
And the first graphic game element and the second graphic game element are the same game element, and wherein the first game action and the second game action are different. 20. The method of claim 19,
The first game motion is movement in the first direction of the first graphical game element in the game space and movement in the opposite direction,
And said second game operation is a movement in a second direction perpendicular to said first direction of said first graphical game element in said game space and a movement in the opposite direction. 20. The method of claim 19,
And the first graphic game element is a character and the second graphic game element is a game element operated by the character. 20. The method of claim 19,
The controller is a game device, characterized in that for generating a result of the exercise data of the user as a video game to display on the display unit. 20. The method of claim 19,
The joint angle measuring unit,
And a capture device to obtain a depth image of the lower limb. 26. The method of claim 25,
The capture device comprises a depth camera (depth camera). 20. The method of claim 19,
The joint angle measuring unit game device, characterized in that for indirectly measuring the reduction and enlargement of the lower joint angle. 28. The method of claim 27,
The joint angle measuring unit,
Game device, characterized in that any one of a tilting sensor (tilting sensor) attached to the lower or thigh, an accelerometer (attachment) attached to the knee joint, a magnetometer or an ultrasonic range finder to measure the distance between the reference point and a specific part of the user's body.
KR1020120015432A 2012-02-15 2012-02-15 Apparatus for game using the weight load and the angle of joint for variable KR20130094074A (en)

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