TW201940121A - Wearable device, method and storage medium for joint activity detection for helping user's health or exercise risk management - Google Patents

Abstract

Disclosed is a wearable device for joint activity detection, which comprises a wearable member, a joint sensing unit and a wireless communication unit. The joint sensing unit comprises a plurality of sensors and is detachably mounted on the wearable member. When the wearable member mounted with the joint sensing unit is worn on the user, the sensors may detect the user's joint activity and correspondingly generate a plurality of sensing signals. The wireless communication unit is detachably and electrically coupled with the joint sensing unit and is used to output the sensing signals in a wireless manner, and thus a terminal device may receive the sensing signals. The invention may be expanded for various applications, such as an application of reminding the user to avoid or reduce sport injuries.

Description

Wearable device, method and storage medium for joint motion detection

The invention relates to a joint motion detection technology, and more particularly to a wearable device, method and storage medium for joint motion detection.

People's life, work, and posture during exercise have a great impact on their health, and modern people's congresses have problems with walking postures. If you can develop the correct posture from walking, the running posture and other sports postures will be more correct.

Among the joints that are closely related to human activities, the knee joint is the most important joint because it carries the largest body weight. The health of the knee directly affects daily life. For adults or seniors, long-term improper knee movements will cause knee damage in the future, resulting in inconvenience or inability to walk. For athletes' performance, the knee joint is more important, and the most common knee sports injuries are caused by excessive use of the knee.

In general, the correct way of knee movement must be checked with professional equipment or in a hospital. Although there are currently wearable devices for detecting walking postures, these devices focus on the application of exercise walking rhythm and caloric consumption. At present, there are no products on the market that are convenient for users to use, and can fully reflect and record people's joint activities in real time. Therefore, the conventional wearable device technology and its application still need to be breakthrough.

An embodiment of the present invention is to provide a joint motion detection technology, which effectively utilizes hardware resources provided by joint sensing and wireless transmission technology to generate a sensing signal capable of reflecting a user's joint motion, and can be used by a terminal The device performs recording and judgment processing based on these sensing signals, thereby facilitating the management of user health or exercise risk.

An embodiment of the present invention provides a wearable device for joint motion detection, which includes a wearer, a joint sensing unit, and a wireless communication unit. The joint sensing unit includes a plurality of sensors. The joint sensing unit is configured to be detachably disposed on a wearing part. When the wearing part having the joint sensing unit is worn on a user, these sensors are used In order to sense the joint activity of the user and generate a plurality of sensing signals correspondingly. The wireless communication unit is detachably and electrically coupled to the joint sensing unit, and is configured to wirelessly output the sensing signals.

In one embodiment, when a wearable part having a joint sensing unit is worn on a joint part of a user, the position where the sensors are disposed on the wearable part corresponds to the first proximity of the joint part of the user. Area to the second neighboring area.

In an embodiment, when a wearable part having a joint sensing unit is worn on a joint part of a user, the sensors are used to sense a first neighboring area to a second neighboring area adjacent to the joint part of the user. The motion changes and correspondingly generates these sensing signals over time.

In one embodiment, the joint sensing unit further includes a protective layer and a transmission portion. These sensors are disposed on a protective layer. The transmission part is extended from at least one side of the protective layer and has a connection line for electrically coupling the sensors, and the transmission part is used for electrically coupling with the wireless communication unit.

In an embodiment, when the wearable part having the joint sensing unit is worn on the joint part of the user, the position where the sensors are disposed on the protective layer corresponds to the first proximity of the joint part of the user. Area to the second neighboring area.

In some embodiments, the wearable device may be configured to be worn on various joint parts, and the joint parts may be knees, ankles, wrists, elbows, or other joint parts.

Another embodiment of the present invention provides a joint motion detection method for a terminal device. The method includes the following steps. Connect wirelessly with a wearable device that senses joint motion of the user. Receive a plurality of sensing signals output by the wearable device. According to these sensing signals, corresponding angular data of joint motion is generated. According to the change of the angle data, it is judged whether the joint motion of the user is correct. If it is determined that the joint motion of the user is incorrect according to the change of the angle data, the terminal device is caused to generate at least one prompt message.

In an embodiment, the step of determining whether the joint motion of the user is correct includes the following steps. Calculate the joint angle change rate based on the change of the angle data over time. Determine whether the joint angle change rate is greater than or equal to the threshold. If the joint angle change rate is greater than or equal to the threshold value, it is determined that the joint motion of the user is incorrect. If the joint angle change rate is less than the threshold value, it is determined that the joint motion of the user is correct.

In some embodiments, the change of the angular data includes at least one of the angular velocity change data and the angular acceleration change data.

In an embodiment, the method further includes: displaying the angle change of the joint motion of the user on the terminal device according to the change of the angle data within a time interval.

According to another embodiment of the present invention, a storage medium is provided, which records a program code for allowing a terminal device to perform the aforementioned joint motion detection method.

Accordingly, in the embodiment of the joint motion detection technology proposed above, the wearable device for joint motion detection is used to sense the joint motion of the user and correspondingly generate a plurality of sensing signals and output them wirelessly. In this way, the terminal device can use a wireless communication method to wirelessly connect with the wearable device, receive such sensing signals, present the angle change of the user's joints accordingly, and extend various applications, such as reminding the user to avoid or Applications to reduce sports injuries.

In order to fully understand the purpose, characteristics and effects of the present invention, the present invention will be described in detail through the following specific embodiments and the accompanying drawings, which will be described later.

Please refer to FIGS. 1 to 3. FIG. 1 is a schematic diagram of an embodiment of a wearable device 10 for joint motion detection according to the present invention. FIG. 2 is a view of joint motion and joint angle of the wearable device 10 of FIG. 3, and FIG. 3 is a block diagram of a part of the wearable device 10 of FIG. 1. As shown in FIG. 1, the wearable device 10 for joint motion detection includes a wearer 110, a joint sensing unit 120, and a wireless communication unit 130.

The joint sensing unit 120 is detachably disposed on the wearing device 110. As shown in FIG. 2, the joint sensing unit 120 includes a plurality of sensors 122, and the sensors 122 are detachably disposed on the wearing device 110. In addition, the wireless communication unit 130 is detachably and electrically coupled to the joint sensing unit 120.

For ease of explanation, FIG. 1 shows a wearable device 10 for a left or right foot of a user. In another embodiment, the wearable device may also include two groups of devices separated from each other for the user's feet, and each group of devices is implemented based on FIG. 1. In addition, the wearing device 110 is used to be worn by a user. The wearing device 110 may be any knuckle protector or an article with a similar shape, such as a long-barreled protector, a middle-barreled protector, a short-barreled protector, or sports pants. All in all, the implementation of the present invention is not limited by the above examples.

As shown in FIG. 1 and FIG. 2, when the wearing part 110 having the joint sensing unit 120 is worn on the user, the sensors 122 are used to sense the joint activity of the user and generate a plurality of corresponding ones. The sensing signals are used by the wireless communication unit 130 to wirelessly output the sensing signals.

In the embodiment shown in FIG. 1, when the wearing part 110 on which the joint sensing unit 120 has been set is worn on the user's knee, the sensors 122 are disposed at the position of the wearing part 110 (such as position P0). , At least two positions of P1, P1, P2) correspond to the area from the thigh to the calf adjacent to the user's knee. These sensors 122 are used to sense the movement changes of the area from the thigh to the lower leg of the user's knee and correspondingly generate these sensing signals over time to reflect the movement of the user's joints (such as the knee). Change of angle.

In order to reflect the change of the angle of the user's joints (such as knees), the positions set by the sensors 122 and their relative positional relationship can be used to define the angle of the joints (such as knees). For example, as shown in FIG. 1, when the user stands upright, the sensing signal output by the sensor 122 provided at the corresponding position P0, P1, P2 can be defined as the case where the angle of the joint is 0 degrees It is assumed here that the sensors 122 disposed at the positions P1 and P2 have the axes L1 and L2 as the measurement reference, and the axes L1 and L2 are coincident.

Furthermore, as shown in FIG. 2, when the user's knee is deformed, the axes L1 and L2 of the sensors 122 provided at the positions P1 and P2 intersect (eg, through the position P0) to generate an included angle θ, where the included angle θ Defined as the angle of the joint. For example, the magnitude of the included angle θ can be calculated by using at least the sensing signals output from the two sensors 122 disposed at the positions P1 and P2.

In addition, the magnitude of the included angle θ can also be calculated by using the sensing signals output from three or more sensors 122 disposed at the positions P0, P1, and P2. For example, these sensors 122 may be acceleration sensors, gyroscopes, or any inertial sensors, or a combination thereof. However, the implementation of the present invention is not limited by these examples, and as long as any sensor or other way to define the angle of joint motion can reflect the change of the angle of joint (such as knee) movement of the user, Both can be regarded as embodiments of the present invention. For example, these sensors 122 may also be implemented using an electronic goniometer or a torsiometer.

Please refer to FIG. 4A, which is a schematic diagram of an embodiment based on the circuit of FIG. 3. In the embodiment of FIG. 4A, the joint sensing unit 120A includes a protective layer 121, two sensors 122, and a transmission unit 125. The protective layer 121 is used to protect at least these sensors 122. For example, the sensor 122 may be disposed on the protective layer 121, or the sensor 122 may be partially or completely covered by the protective layer 121. The transmission part 125 is extended from at least one side of the protective layer 121 and has a connection line 126 electrically coupled to the sensors 122. The transmission unit 125 is further used to be electrically coupled with the wireless communication unit 130. The protective layer 121 and the transmission portion 125 may be implemented by using a thin film layer or other protective soft and windable materials.

Please refer to FIG. 4B, which is a schematic diagram of another embodiment of the circuit of FIG. 3. In the embodiment of FIG. 4B, the joint sensing unit 120B has three sensors 122. However, the implementation of the present invention is not limited by this example. For example, the number of these sensors 122 and the manner in which they are set can also be configured differently in the area according to the needs of detection accuracy or product specifications.

For example, the wearer 110 may be configured as a structure capable of accommodating at least a joint sensing unit. Please refer to FIG. 5A and FIG. 5B. FIG. 5A is a schematic cross-sectional view of an embodiment of the wearing member 110 in FIG. 1, and FIG. 5B is a partially enlarged schematic view of a partial cross-section of FIG. 5A. As shown in FIG. 5A, the wearing member 110 has a cylindrical structure, for example, for the user to wear. As shown in FIG. 5B, part C of the wearable article 110 may be configured to have a first layer 111 and a second layer 112, and an accommodation space 113 between the first layer 111 and the second layer 112. The accommodating joint sensing unit 120A (or 120B) shown in FIG. 4A (or FIG. 4B) is accommodated therein. For example, part or all of the joint sensing unit 120A is accommodated in the accommodation space 113. In addition, the first layer 111 and the second layer 112 may include at least one of cotton, textile, rubber-like material, and functional cloth. However, the implementation of the present invention is not limited by these examples, and any method that can at least allow the joint sensing unit 120 to be detachably disposed on the wearing device 110 can be used as an embodiment of the present invention.

Next, please refer to FIG. 6A to FIG. 6C, which are schematic diagrams of examples in which the wearable device according to the present invention can be applied to detect a joint part of a human body. In the above-mentioned embodiment of the wearable device, when the wearing part 110 having the joint sensing unit 120 is worn on the user's knee, the positions where the sensors 122 are disposed on the protective layer 121 correspond to the user The joint region K (such as the knee) is adjacent to the first adjacent region G1 (such as the thigh) to the second adjacent region (such as the lower leg), as shown in FIG. 6A.

In addition, the wearable device according to FIG. 1 can also be configured and applied to other joint parts, such as ankle, wrist, elbow, or other suitable joint parts. For example, the wearing part of the wearable device according to FIG. 1 may also be configured in the shape of an ankle protector or socks. When the wearing parts that have been provided with the above-mentioned joint sensing unit are worn on the user's feet, the positions where the sensors 122 are disposed on the protective layer 121 correspond to the user's joint site K (such as ankle) adjacent to The first neighboring region G1 (such as the lower leg) to the second neighboring region (such as the sole of the foot), as shown in FIG. 6B.

As another example, the wearing part of the wearable device according to FIG. 1 may also be configured in the shape of a wrist guard or a glove. When the wearing parts that have been provided with the above-mentioned joint sensing unit are worn on the user's hand, the positions where the sensors 122 are disposed on the protective layer 121 correspond to the vicinity of the joint part K (such as the wrist) of the user. The first neighboring region G1 (such as the arm) to the second neighboring region (such as the palm), as shown in FIG. 6C. According to the above, the implementation of the present invention is not limited by these examples.

In brief, when a wearable part provided with a joint sensing unit is worn on a certain joint part of a user, these sensors are used to sense a first neighboring area to a second neighboring area adjacent to the joint part of the user. The motion changes and correspondingly generates these sensing signals over time.

In addition, the wireless communication unit 130 may be implemented as a wireless communication module supporting Bluetooth (various Bluetooth versions 1.0 to 4.0 or above), Zigbee or other wireless communication specifications. In addition, the wireless communication unit 130 may be configured with other circuits or components, such as a memory, a power circuit, or a battery. In practice, the wireless communication unit 130 can be implemented to be detachably attached to the wearing part 110. For example, the wireless communication unit 130 is covered with a ring-shaped, button-shaped, or any-shaped casing so as to be conveniently attached to the wearable 110 such as the side of the joint supporter or the side of the joint supporter or other positions. In short, the implementation of the present invention is not limited by the above examples. For example, the wireless communication unit 130 may be implemented to be detachably received in an accommodation space as shown in FIG. 5B.

In addition, after the joint sensing unit 120 and the wireless communication unit 130 are completely separated from the wearing part 110, the user can perform a cleaning process on the wearing part 110. In this way, the user no longer has to bear the risk of damage to the internal electronic components due to the cleaning of the smart wearable device exclusive in the conventional technology.

According to the above-mentioned embodiment of the wearable device 10 for joint motion detection, a user may detachably set the joint sensing unit 120 and the wireless communication unit 130 of the wearable device 10 on the wearable 110 to sense movement, life, Or related data on joint activity at work, which helps further data analysis and application. For example, the wearable device 10 may record or analyze data and temporarily store the data, or transmit the data to a terminal device for data analysis and application.

In addition, in an embodiment, the wireless communication unit 130 may be implemented by using a chip integrated with a control module and a wireless communication module. In another embodiment, a control module (such as a microprocessor, a microcontroller, or a logic control circuit) or a memory may be further provided in the wearable device 10, so that the wireless communication unit 130 is electrically coupled to the control module. Group or memory.

For example, the above control module can perform various controls on the joint sensing unit 120 or the wireless communication unit 130 (or the wireless communication module), or enter various operation modes, such as a power saving mode, an offline mode, or a connection mode. In an embodiment, the control module may determine whether the user is sitting, resting, or other stationary activities to cause the wearable device 10 to enter the power saving mode according to the change of the sensing signal. For example, the judgment condition may be set as to whether, after a time interval (such as 3 to 5 minutes or more), the sensing signal continues to change within a small range, or whether the angle of the joint motion corresponding to the sensing signal continues to Changes within a small range or below the threshold (such as within 5 degrees). If the conditions of this judgment are satisfied, the control module may set at least one of the joint sensing unit 120 and the wireless communication unit 130 in a power saving mode to save power. As another example, when the wireless communication unit 130 fails to connect with the terminal device, the control module may set the joint sensing unit 120 or the wireless communication unit 130 to an offline mode, and the control module may perform data recording or preliminary analysis and Data or related results are temporarily stored. For another example, when the wireless communication unit 130 can be connected to a terminal device, the control module may set the joint sensing unit 120 or the wireless communication unit 130 in a connection mode to temporarily store the data of the sensing signal or temporarily in the offline mode. The stored data is transmitted to the terminal device. In addition, in these embodiments regarding the operation mode, the wireless communication unit 130 may replace the control module, and the wireless communication unit 130 may control the operation mode of the joint sensing unit 120.

Please refer to FIG. 7, which is a schematic diagram of the communication between the wearable device 10 and the terminal device 20 of FIG. 1. When the wearable 110 having the joint sensing unit 120 is worn by the user, the wireless communication unit 130 of the wearable device 10 wirelessly outputs the plurality of sensing signals generated by the joint sensing unit 120 to the terminal device 20 . The terminal device 20 can perform data processing and judgment according to this, so as to provide the user with relevant information during the joint movement as feedback, such as whether there is an incorrect or abnormal situation in the angle change mode of the joint movement of the user. For example, the terminal device 20 is a mobile device, a smart device, or any computing device. The terminal device 20 may include a processing unit and a communication unit to execute a system program, an operating system, or an application program, and may further include a display unit to display a use interface corresponding to any of these programs.

Please refer to FIG. 8, which is a flowchart of an embodiment of a joint motion detection method according to the present invention. As shown in FIG. 8, the joint motion detection method is applied to a terminal device, and the method includes the following steps.

As shown in step S110, the terminal device 20 is wirelessly connected with the wearable device 10 for sensing joint motion of the user. As shown in step S120, the terminal device 20 receives a plurality of sensing signals output by the wearable device 10. As shown in step S130, the terminal device 20 generates angle data corresponding to the joint motion according to these sensing signals. As shown in step S140, the terminal device 20 determines whether the joint motion of the user is correct according to the change of the angle data. As shown in step S150, if it is determined that the joint motion of the user is incorrect according to the change of the angle data, the terminal device 20 may generate at least one prompt message. The prompt message is displayed on the user interface of the terminal device 20, or presented in any manner such as tactile (such as vibration) or sound.

As described above, the terminal device 20 can use the processing unit and the communication unit of the terminal device 20 to repeatedly execute the method, thereby obtaining the angle change of the joint part of the user during the movement, and extending various applications, such as reminding the user to avoid Applications to reduce sports injuries. In addition, the above method can be implemented as an application program for the terminal device 20 to execute.

In addition, if it is determined that the joint motion of the user is correct according to the change of the angle data, as shown in step S160, the terminal device 20 may perform other processing. In addition, in an example, if the condition of the incorrect joint movement is improved by the user's self-adjusted posture, and the terminal device 20 determines that the joint movement is correct, the terminal device 20 may also generate at least one prompt message. In short, the implementation of the present invention is not limited by these examples.

In step S110, the terminal device 20 is wirelessly connected to the wearable device 10 using, for example, Bluetooth or Zigbee wireless communication. The wearable device 10 and the terminal device 20 are paired or identified, so as to confirm each other to ensure that the connection is safe and normal.

In step S120, the terminal device 20 receives a plurality of sensing signals output by the wearable device 10. For example, the plurality of sensing signals obtained by simultaneously sensing the movement between the first adjacent area G1 (such as the thigh) adjacent to the joint part K (such as the knee) to the second adjacent area (such as the lower leg) can be detected by the terminal device 20 receive.

In step S130, the terminal device 20 generates angle data corresponding to the joint motion according to the sensing signals. For example, the terminal device 20 can obtain the angle data of the corresponding joint movement according to the sensing signals of the gyroscope or the acceleration sensor. For example, please refer to FIG. 2. To simplify the description, assuming that the positions P0, P1, and P2 are on the same plane, the processing unit of the terminal device 20 sets The sensing signals output by the sensors generate relative coordinates (x1, y1), (0, y0), and (x2, y2), respectively. The processing unit of the terminal device 20 can obtain the magnitude of the included angle θ based on the three-point coordinates, and use the magnitude of the included angle θ as the angle data. In addition, FIG. 2 and the above description are just examples, and the meaning or calculation of the angle of joint motion is not limited by this example. For example, the angle of joint motion can also be defined as the obtuse angle generated by the intersection of the two axes L1 and L2 in FIG. 2.

In addition, different definitions of angle data and changes in angle data can be set according to the needs of various different application scenarios or different products, and steps S110 to S140 can be implemented accordingly to determine whether the user's joint activity is correct. . In this way, a variety of different implementations can be generated based on the method of FIG. 8, wherein the definition of the angle data and the change of the angle data is related to the type of data obtained, the calculation method of the data, and the determination method to determine whether the joint activity is correct. For example, the angle data can be defined as including the included angle as described above, and the change of the angle data can also be defined as including the rate of change of the included angle with time. However, the implementation of the present invention is not limited by this example. For another example, the angle data may include angle change data, and derive angular speed change data and angular acceleration change data. The change of the angle data may include the change of the angular velocity and the change of the angular acceleration, and it is possible to judge whether the user's joint movement is correct according to the change of the angle data.

Please refer to FIG. 9, which is a flowchart of an embodiment of step S140 of determining whether the joint motion of the user is correct in FIG. 8. As shown in FIG. 9, step S140 may include the following steps. As shown in step S210, the joint angle change rate is calculated according to the change of the angle data with time. As shown in step S220, it is determined whether the joint angle change rate is greater than or equal to a threshold value. As shown in step S230, if the joint angle change rate is greater than or equal to the threshold value, it is determined that the joint motion of the user is incorrect. As shown in step S240, if the joint angle change rate is less than the threshold value, it is determined that the joint motion of the user is correct.

In addition, for example, the wearable device 10 performs sensing at intervals, such as 100, 200, or more detections per second. The terminal device 20 receives a plurality of sensing signals that simultaneously sense different positions (such as positions P1 and P2 shown in FIG. 1) at a certain point in time, and these sensing signals can be converted into angle data through step S130. Therefore, within a time interval, the terminal device 20 can collect multiple sets of angle data for the same joint site at different points in time. Such angle data can also be regarded as a function value of the angle of joint movement that changes with time.

In step S140, the terminal device 20 determines whether the angle change of the joint motion of the user is correct (or meets the requirements) at the terminal device 20 according to the change of the angle data within a time interval (such as 1 to 10 minutes, etc.). Please refer to FIG. 10, which is a schematic diagram illustrating an example of changes in the angle of joint motion. As shown in FIG. 10, for example, it is the time difference of the angle change (about 0 to 35 degrees) of the joint area of the knee during movement. For example, when the user exerts force, if the action takes the shortest time at 0 to 5 degrees, the time difference is 10 milliseconds; the action at 5 to 10 degrees, that is, the time difference is 12 milliseconds; 10 to 15 It takes the longest time, and the time difference is 15 milliseconds.

Because the structure of the human body's joints includes two cartilages for relative rotational movement, there is joint fluid between the cartilage and the cartilage. The joint fluid is used to cushion the friction between the cartilage and avoid direct contact between the cartilage and wear or damage. cause some damages. If a person suddenly exerts force, that is, when performing joint motion very quickly within a short period of time, the joint fluid may fail to cooperate and cause direct contact or friction between the two cartilages to cause injury. Therefore, the change of the angle of the joint in the ideal is shown as a straight line E1 indicated by a dashed line in FIG. 11, that is, the angle of the joint changes ideally when the person moves.

However, in fact, as each person's activity mode or habit is different, the change in the angle of the actual joint movement may be presented as a curve E2 indicated by a solid line in FIG. 11. In other words, in the process of changing the angle of joint motion, there may be large changes at certain points in time, such as X1 and X2 are where the absolute value of the slope on the curve E2 is larger. If the absolute value of the slope is more frequent than the normal situation or the age of the user, the user may cause joint damage. Therefore, as shown in FIG. 8 above, steps S140 to S150 are used to determine this situation and generate a prompt signal to the user when this situation occurs.

In addition, please refer to FIG. 12, which is a schematic diagram of another example of a possible change in the angle of joint motion. As shown in FIG. 12, the straight line E3 is an ideal situation, and the curve E4 reflects the possible change rate of the angle with time when the joint moves. The angle change rate can be set as a primary differential or a secondary differential (such as a numerical differential) of the angle of the joint motion. Therefore, in an embodiment, the terminal device 20 may be configured to determine the joint motion of the user based on the differential of the angle of the joint motion within a time interval (such as 1 to 10 minutes, etc.) according to step S140 of FIG. 9 described above. Whether the angle changes are correct (or meet the requirements). The threshold can be set to a certain value according to the user's age, personal preferences, or other conditions. When the user applies a wearable device for joint motion detection, the terminal device 20 judges whether the angle change of the joint motion of the user is correct (or meets the judgment condition) according to the threshold value; if the judgment result is incorrect, it can generate Prompt signals for recording or letting users know, and can give further suggestions, such as advising users to stop exercise or improve posture or to consult a physician.

In addition, in practice, the above method may further include the step of using a chart, data, or animation to present a change in the angle of the joint motion, such as displaying any one of FIG. 10 to FIG. 12 on the display screen of the terminal device 20 Diagram, but the implementation of the present invention is not limited by this example.

In some embodiments, the terminal device 20 may further determine whether the user is running or walking according to the size and type of the sensing signals such as the frequency of changes in the sensing signals. If the determination result of step S250 is that the posture of the user is abnormal when walking, a prompt message may be generated to advise the user to stop running or walking. In addition, the terminal device 20 may also selectively provide other sports-related information or suggestions, so that the user can make a judgment.

Furthermore, in an embodiment, the terminal device 20 allows the user to select a motion mode, so that the terminal device 20 can determine whether the user's joint activity is correct according to the joint position changes or trajectories in the motion mode. . For example, the sport mode is set to one of jogging, sprinting, long-distance running, marathon, golf, throwing, volleyball, basketball or jumping modes. The terminal device 20 may compare with the joint activity change or trajectory (that is, the corresponding reference function or reference pattern) in the motion mode and record the joint activity in the user's movement to obtain a judgment result. For example, using the foregoing It is judged by comparing the curves in the examples of FIGS. 10 to 12 with a reference function.

In still another embodiment, the wearable device may also include two sets of devices separated from each other for the user's left and right joint parts (such as the knees of both legs), and each set of devices is implemented based on FIG. 1. In this example, the terminal device 20 needs to be paired and confirmed with two groups of devices, and the related matters are processed separately for each group of devices, that is, the method described above can also be applied to this embodiment. In addition, the change in joint activity of two joint parts (such as the knees of two legs) can also be compared with a reference function or pattern to determine whether it is correct.

In some embodiments, a record of changes or trajectories of joint activity may be further stored in the terminal device 20 or an external server, so that the user can review or compare with new records in the future, which allows the user to understand self-adjustment. Effect or progress.

In addition, in some embodiments, a computing device readable storage medium is provided, which records code of a method for enabling a terminal device (such as the aforementioned mobile device or a computing device of a smart device) to perform joint activity detection, wherein The method includes any embodiment or any combination of the methods according to FIG. 8 or FIG. 9. For example, the code is one or more programs or program modules. If used to implement steps S110 to S150 according to FIG. 8, the codes of these modules work together and can be used in any suitable order. carried out. When the terminal device executes this code, it can cause the terminal device to execute any one of the methods of joint motion detection based on FIG. 8. The computer can read the storage medium, such as firmware, ROM, RAM, memory card, optical information storage medium, magnetic information, or any other type of storage medium or memory, but the implementation of the present invention is not limited to this Example restrictions.

In addition, in some embodiments of the wearable device 10, the foregoing steps S130, S140, S150 or any of the embodiments thereof can also be applied to the wearable device 10. For example, in the example where the wearable device 10 has a control module, the control module of the wearable device 10 may perform the processing of the sensing signal based on steps S130 or S130 to S150. For example, the control module of the wearable device 10 may generate angle data of the joint motion, or determine whether the joint motion of the user is correct or generate a prompt message based on the change of the angle data. The wearable device 10 may further be provided with a prompting light (such as an LED), an oscillator or a buzzer, and the prompting message may be presented in any manner such as visually, tactilely or soundly. In addition, the wearable device 10 may be configured to temporarily store the prompt message in the memory of the wearable device 10. Alternatively, the wearable device 10 may be configured to transmit the angle data or the prompt message to the terminal device for further processing by the terminal device. For example, the terminal device further determines whether the joint movement is correct (or meets the requirements) based on the angular data output by the wearable device 10, or the terminal device presents it in any manner such as visually, tactilely or soundly according to the prompt message. According to the above-mentioned embodiments, the wearable device 10 can be implemented as a function capable of autonomously processing angle data or judging whether the joint movement is correct (or meet requirements), so that the user can obtain a more convenient use experience. In addition, the foregoing embodiment can be further combined, so that the wearable device 10 can have different operation modes, for example, the aforementioned power saving mode, offline mode, or connection mode. In this way, the wearable device 10 can more flexibly perform joints in response to changes in different usage environments, such as sufficient external computing resources (such as when connected to a terminal device) or lack (such as when the terminal device is disconnected or offline). Activity detection or judgment, and can be extended to various applications, such as applications to remind users to avoid or reduce sports injuries.

Accordingly, in the embodiment of the joint motion detection technology proposed above, the wearable device for joint motion detection is used to sense the joint motion of the user and correspondingly generate a plurality of sensing signals and output them wirelessly. In this way, the terminal device can use a wireless communication method to wirelessly connect with the wearable device, receive such sensing signals, present the angle change of the user's joints accordingly, and extend various applications, such as reminding the user to avoid or Applications to reduce sports injuries. In this way, the wearable device for joint activity detection can effectively utilize the hardware resources provided by joint sensing and wireless transmission technology to generate a sensing signal that can accurately reflect the user's joint activity, so that the terminal device can be extended to apply to Enhanced functions to help manage user health or exercise risk.

The present invention has been disclosed in the foregoing with a preferred embodiment, but those skilled in the art should understand that this embodiment is only for describing the present invention, and should not be interpreted as limiting the scope of the present invention. In addition, those skilled in the art may combine and combine different embodiments or examples and features of the different embodiments or examples described in this specification as embodiments of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the scope of the patent application.

10‧‧‧ Wearable

20‧‧‧Terminal device

110‧‧‧wear

111‧‧‧The first layer of wearables

112‧‧‧The second layer of wearables

113‧‧‧wearing space

120, 120A, 120B‧‧‧ Joint sensing unit

121‧‧‧ protective layer

122‧‧‧Sensor

125‧‧‧Transmission Department

126‧‧‧Connecting cable

130‧‧‧Wireless communication unit

Positions P0, P1, P2‧‧‧

K‧‧‧ joint parts

G1‧‧‧First neighboring area

G2‧‧‧Second Neighborhood

L1, L2‧‧‧ axis

S110 ~ S160‧‧‧step

S210 ~ S240‧‧‧step

E1, E3‧‧‧Straight

E2, E4‧‧‧ curves

Where the absolute value of the slope on the X1, X2‧‧‧ curve is larger

[FIG. 1] It is a schematic diagram of an embodiment of a wearable device for joint activity detection according to the present invention. [Fig. 2] It is a schematic diagram of joint activities and joint angles of the wearable device in Fig. 1 during use. [Fig. 3] is a block diagram of a part of the wearable device of Fig. 1. [Fig. [Fig. 4A] is a schematic diagram of an embodiment based on the circuit of Fig. 3. [FIG. 4B] is a schematic diagram of another embodiment based on the circuit of FIG. 3. [Fig. 5A] is a schematic cross-sectional view of an embodiment of the wearing device in Fig. 1. [Fig. [Fig. 5B] is a partially enlarged schematic diagram of a part of the cross section of Fig. 5A. [FIG. 6A] to [FIG. 6C] are schematic diagrams of examples in which the wearable device according to the present invention can be applied to detect a joint part of a human body. [Fig. 7] It is a schematic diagram of the communication between the wearable device and the terminal device of Fig. 1. [FIG. 8] It is a flowchart of an embodiment of a joint motion detection method according to the present invention. [Fig. 9] Fig. 9 is a flowchart of an embodiment of step S140 in Fig. 8. [Fig. 10] It is a schematic diagram showing an example of a change in the angle of motion of a joint. [Fig. 11] It is a schematic diagram showing an example of changes in the angle of ideal and possible joint motion. [Fig. 12] It is a schematic diagram showing another example of the change in the angle of possible joint motion.

Claims (10)

A wearable device for joint motion detection includes: a wearable part; a joint sensing unit including a plurality of sensors, the joint sensing unit is detachably disposed on the wearable part, and when When the wearing part provided with the joint sensing unit is worn on a user, the sensors are used to sense the joint activity of the user and correspondingly generate a plurality of sensing signals; and a wireless communication unit, It is detachably electrically coupled to the joint sensing unit for outputting the sensing signals wirelessly. The wearable device according to claim 1, wherein when the wearable part on which the joint sensing unit has been set is worn on a joint part of the user, the positions where the sensors are disposed on the wearable part correspond to A first adjacent area to a second adjacent area adjacent to the user's joint site. The wearable device according to claim 1, wherein the joint sensing unit further comprises: a protective layer, the sensors are disposed on the protective layer; and a transmission part, the transmission part is from the protective layer At least one side extends and has a connection line electrically coupled to the sensors, and the transmission portion is used to be electrically coupled to the wireless communication unit. The wearable device according to claim 3, wherein when the wearable part on which the joint sensing unit is provided is worn on a joint part of the user, the positions where the sensors are disposed on the protective layer correspond to A first adjacent area to a second adjacent area adjacent to the user's joint site. The wearable device according to claim 2 or 4, wherein the sensors are used to sense the user's when the wearable part on which the joint sensing unit is set is worn on the joint part of the user. The motion changes from the first adjacent area adjacent to the joint part to the second adjacent area and correspondingly generate the sensing signals over time. The wearable device according to claim 5, wherein the joint part is any one of a knee, an ankle, and a wrist. A joint motion detection method for a terminal device, the method includes: wirelessly connecting with a wearable device for sensing joint activity of a user; receiving a plurality of senses output by the wearable device Measurement signals; angle data corresponding to joint motion generated based on the sensing signals; determination of whether the user's joint motion is correct based on changes in the angle data; and determination of the user based on changes in the angle data When the joint motion is incorrect, the terminal device generates at least one prompt message. The method according to claim 7, wherein the step of determining whether the user's joint activity is correct includes: calculating a joint angle change rate based on the change of the angle data with time; judging whether the joint angle change rate is greater than or equal to a threshold If the rate of change of the joint angle is greater than or equal to the threshold value, it is determined that the joint activity of the user is incorrect; and if the rate of change of the joint angle is less than the threshold value, it is judged that the joint activity of the user is correct. The method according to claim 7, wherein the change in the angular data includes at least one of angular velocity change data and angular acceleration change data. A storage medium records a code for a terminal device to execute the method of joint activity detection according to any one of claims 7 to 9.