JP2015195840A - information processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing system capable of appropriately grasping a user's movement with a configuration in which a burden on the user wearing footwear is small.SOLUTION: An information processing system 10 includes an inner sole 12 incorporating a sensor 14, and a support 16 to which a power source 18, a signal analysis part 20, and a wireless communication part 22 are attached. The inner side 16A of the support 16 accommodates wiring 15 that covers an internal wall surface of a heel part, and transmits a detection signal of the sensor 14 to the signal analysis part 20, inside. As the sensor 14, a sensor is used that deforms by a user's movement, and outputs a value of voltage generated according to an amount of the deformation as a detection result.

Description

  The present invention relates to an information processing system.

  In recent years, detection of a user's movement has been performed for the purpose of promoting nursing care and rehabilitation, promoting health, and developing sports performance. For example, the movement information of a user wearing footwear is measured by providing a sensor on the footwear and analyzing the output from the sensor (see, for example, Patent Literature 1 and Patent Literature 2).

JP 2007-151117 A Special table 2009-517168

  However, in the conventional technology, there is a case where a burden is placed on a user who wears footwear. For example, there is a concern that the wiring for outputting the detection result may be caught when wearing footwear or walking. In addition, with the conventional technology described above, there has been a concern that it is impossible to appropriately grasp the movement of the user wearing the footwear.

  An object of the present invention is to provide an information processing system capable of appropriately grasping a movement of a user with a configuration in which the burden on the user wearing the footwear is small.

  An information processing system of the present invention is built in an insole inserted into footwear, detects a movement of a user wearing the footwear, and outputs a signal representing a detection result; and a heel of the footwear connected to the insole A support device that is mounted so as to cover the inner side and the outer side of the wall surface of the unit from above, a wiring that is provided in a portion of the support member that covers the inner side of the wall surface, and that transmits the signal; and A signal processing unit that is attached to a portion covering the outside of the wall surface, processes the signal transmitted via the wiring, and outputs a processing result.

  The sensor of the information processing system of the present invention is deformed by a user's movement and outputs a voltage generated according to the deformation amount as the signal.

  The sensor of the information processing system of the present invention includes a reaction force meter and an accelerometer.

  In addition, the signal processing unit of the information processing system according to the present invention compares a predetermined signal based on a reference motion with a signal representing the detection result, and analyzes the user's motion based on the comparison result. Perform the process.

  Moreover, the information processing system of this invention is provided in the part which covers the outer side of the said wall surface of the said support tool, and is provided with the transmission part which transmits the process result output from the said signal processing part to the exterior wirelessly.

  Moreover, the said transmission part of the information processing system of this invention is provided in the position which hits the back side of a heel part, when the said support tool is mounted | worn on the said wall surface.

  The signal processing unit of the information processing system of the present invention is provided at a position corresponding to the outer leg side when the support is mounted on the wall surface.

  The information processing system according to the present invention further includes a power source for driving the signal processing unit, and the power source is provided at a position corresponding to the inner leg side of the foot when the support is mounted on the wall surface. Yes.

  According to the present invention, it is possible to obtain an effect that a user's movement can be appropriately grasped with a configuration in which the burden on the user who wears footwear is small.

It is the perspective view which showed the information processing system which concerns on this Embodiment. It is the perspective view which showed the information processing system which concerns on this Embodiment. It is the figure which looked at the state where information processing system concerning this embodiment was equipped in shoes from the upper part. It is the figure which looked at the state where the information processing system concerning this embodiment was attached to shoes from the outer leg side. It is the figure which looked at the state where the information processing system concerning this embodiment was attached to shoes from the inner leg side. It is a functional block diagram of the information processing system concerning this embodiment. It is a figure which shows the specific example of the correspondence of the deformation amount of a sensor, and the voltage which generate | occur | produces. It is a figure which shows the example of arrangement | positioning of the sensor which concerns on this Embodiment. It is a flowchart showing an example of the process performed in the signal analysis part which concerns on this Embodiment. It is a figure which shows the example of the reaction force at the time of a toe slipping. It is a functional block diagram of the modification of the information processing system which concerns on this Embodiment.

  Hereinafter, an example of the present embodiment will be described with reference to the drawings.

  First, FIG.1 and FIG.2 shows the perspective view of an example of the information processing system of this Embodiment. 3 to 5 show an example of a state in which the information processing system of the present embodiment is attached to shoes. FIG. 3 is a top view of a state where the shoe is mounted on a shoe. FIG. 4 is a view of a state where the shoe is mounted on a shoe, as viewed from the outer leg side. FIG. 5 is a view of a state in which the shoe is mounted on the shoe as viewed from the inner leg side. Furthermore, FIG. 6 shows a functional block diagram of an example of the information processing system 10.

  The information processing system 10 according to the present embodiment includes an insole 12 having a built-in sensor 14 and a support 16. The insole 12 and the support 16 are connected to each other and can be attached to and detached from the shoe 8 integrally.

  The insole 12 has a built-in sensor 14 that detects the movement of a user who wears the shoes 8 (hereinafter referred to as “user”). The processing system 10 is fixed to the shoe 8. In the present embodiment, the sensor 14 has two types of sensors, a reaction force meter 14A and an accelerometer 14B. Hereinafter, the reaction force meter 14A and the sensor 14B are collectively referred to as the sensor 14.

  The reaction force meter 14 </ b> A detects a stress applied to the back of the shoe 8. The reaction force meter 14A used in the present embodiment uses a sensor that generates and outputs a voltage according to the amount of deformation that is bent and deformed by a user's movement, and is driven without requiring a power source.

  When the sensor is deformed, an ion concentration gradient is generated due to a pressure difference between the inside and the outside, a potential difference is generated, and the generated potential difference can be output as a voltage. A specific example of the sensor is a polymer sensor. FIG. 7 shows a specific example of the correspondence relationship between the deformation amount of the sensor and the generated voltage. As shown in FIG. 7, the deformation amount (push deformation amount) and the generated voltage have a contrasting relationship.

  The reaction force meter 14A of the present embodiment detects a deformation amount in the foot length (so-called size) direction, a deformation amount in the foot width direction, and a deformation in two directions, and detects a voltage corresponding to the deformation amount. Output each as a result. Therefore, two wirings 15 are required for one reaction force meter 14A, and when n reaction force meters 14A (n is an integer of 1 or more) are provided, n × 2 wirings 15 are provided. The wiring 15 passes through the inside of the insole 12 from the reaction force meter 14 </ b> A, is taken out as a flat cable from the heel portion, and is stored in the inner side 16 </ b> A of the support 16.

  In order to detect the movement of the user, the sensor 14 is preferably provided at the three locations of the toe and finger base portion 50, the arch portion 52, and the heel portion 54 shown in FIG. A plurality of sensors 14 may be provided at each of the three locations, or a plurality of reaction force meters 14A and a plurality of accelerometers 14B may be provided.

  In the present embodiment, the sensor 14 provided on the toe and the base 50 of the finger detects kicking and bending of the finger. The sensor 14 provided in the arch portion 52 detects a rotational moment. The sensor 14 provided in the heel portion 54 detects landing and serves as a reference for walking.

  Needless to say, the position and type of the sensor 14 are not limited to the present embodiment, and can be changed according to the purpose of the analysis.

  Further, the insole 12 and the sensor 14 may be integrally formed. The sensor 14 may be a surface sensor.

  The support 16 has an inner side 16A and an outer side 16B. As shown in FIGS. 3 to 5, the support 16 is mounted so as to cover a wall surface of the heel portion of the shoe 8, a so-called back tie portion that wraps the heel. When attaching the information processing system 10 to the shoe 8, place the insole 12 inside the shoe 8, straddle the edge of the heel (upper wall surface), and the outer side 16B to the outside, It is attached so as to be covered with the support 16.

  The support 16 can be easily attached to the shoe 8 by being formed of a material having elasticity such as rubber.

  The inner side 16A is mounted so as to cover the inner wall side of the heel portion of the shoe 8. A wiring 15 for transmitting a signal representing the detection result of the sensor 14 (hereinafter referred to as “detection signal”) is housed inside the internal side 16A. The wiring 15 is a cable and has a function of transmitting a detection signal extracted from the heel portion of the insole 12 to the signal analysis unit 20. A specific example of the wiring 15 is a flat cable. In addition, by forming the support 16 with a material having elasticity, it is possible to disperse stress applied to the wiring 15 housed in the inner side 16A due to deformation such as elongation of the shoe 8.

  Since the wiring 15 of the present embodiment is housed in the inner side 16A and is disposed in the support tool 16 or between the support tool 16 and the shoe 8, there is no direct contact with the user.

  The outer side 16B is mounted so as to cover the outer wall side of the heel portion of the shoe 8. A power source 18, a signal analysis unit 20, and a wireless communication unit 22 are attached to the external side 16B.

  The power supply 18 has a function of supplying power for driving the signal analysis unit 20 and the wireless communication unit 22. A specific example of the power supply 18 is a button battery. The power supply 18 is attached to a position corresponding to the inner leg (inner crotch) side when the information processing system 10 is attached to the shoe 8. In the present embodiment, the power source 18 is attached at a position corresponding to the inner leg side because there is little fear of malfunctioning even when vibration occurs due to contact with the opposite foot during walking or the like.

  The signal analysis unit 20 includes a signal conversion unit 30 and a signal processing unit 32. The signal conversion unit 30 has a function of converting an analog detection signal transmitted from the sensor 14 via the wiring 15 into a digital signal. Further, when there are a plurality of sensors 14, the detection signal transmitted from each sensor 14 individually, that is, in parallel, is converted into a serial signal.

  The signal processing unit 32 has a function of detecting the movement of the user wearing the shoes 8 by performing a predetermined analysis, which will be described in detail later, on the detection signal converted by the signal conversion unit 30. The signal processing unit 32 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The CPU has a function of controlling the operation of the signal analysis unit 20, and various programs including programs used for analysis performed by the CPU are stored in advance in the ROM. The RAM has a function of temporarily storing various data, and has a function of storing data serving as a reference for analysis. The signal processing unit 32 may be realized by, for example, a semiconductor integrated circuit, more specifically, an ASIC (Application Specific Integrated Circuit) or the like.

  The signal analysis unit 20 is attached to a position corresponding to the outer leg when the information processing system 10 is attached to the shoe 8. By attaching to the outer leg side, it is possible to suppress malfunction due to vibration caused by contact with the opposite foot during walking or the like.

  The wireless communication unit 22 has a wireless antenna 22A. The wireless communication unit 22 has a function of wirelessly communicating the analysis result of the signal analysis unit 20 to the external wireless communication device 40. A specific example of the wireless communication unit 22 is WiFi (Wireless Fidelity). A specific example of the wireless communication device 40 includes a portable device such as a smartphone.

  The wireless communication unit 22 is attached to a position corresponding to the rear side of the heel part when the information processing system 10 is attached to the shoe 8.

  The power source 18, the signal analysis unit 20, and the wireless communication unit 22 are each housed in a waterproof case.

  Next, the operation of the information processing system 10 according to the present embodiment will be described. FIG. 9 is a flowchart showing an example of processing performed by the signal analysis unit 20. The process shown in FIG. 9 is executed when the signal analysis unit 20 is turned on.

  First, in step S <b> 100, the signal conversion unit 30 of the signal analysis unit 20 receives a detection signal representing a detection result from the sensor 14 via the wiring 15.

  Next, in step S <b> 102, the signal analysis unit 20 converts the received analog analog in parallel format into a serial digital signal used in the signal processing unit 32 and outputs the digital signal to the signal processing unit 32.

  In the next step S104, the signal processing unit 32 analyzes the user's movement based on the detection signal converted by the signal processing unit 32.

  As a specific example of the analysis, a case will be described in which the information processing system 10 detects the movement of the user's foot and analyzes whether there is a fear of falling to prevent the user from falling.

  There are two main causes for the fall.

  As one cause, it is considered that the foot does not go up, that is, walking with a foot. In particular, elderly people and the like tend to become slippers without consciousness when walking. The characteristics of the movement in the case of a foot are that the reaction force is small and the reaction force cycle (landing cycle) is shorter than that of normal walking. In order to analyze whether or not walking is a gait, it is preferable to use the sensor 14 disposed on the toe and the base 50 of the finger.

  FIG. 10 shows an example of the reaction force when the toes are walking. The waveform of the reaction force caused by walking with a foot is different from the waveform caused by walking during normal operation. In the example shown in FIG. 10, it can be seen that the landing cycle is short and the foot is not raised. Therefore, it is possible to determine whether or not the walking is a pedestrian walking by comparing the waveforms of the detection results with reference to the waveform of walking during normal times. In the case of pedestrian walking, there is a fear of falling as an analysis result.

  In addition, about the normal walk, you may use the research result generally performed. For example, for normal walking, non-patent literature is the measurement of the reaction force of the sole when walking a normal person, Ichiro Takahama, Masahiro Fujita, Hiroshi Saeki, Hideki Shibahara, Precision Machinery 44, No. 8, p63-70. , August 1978, etc. may be used.

  In general, walking data varies depending on age, sex, and walking environment (uphill, downhill, flat ground, etc.). For this reason, it is preferable to acquire the normal walking data of the user who uses the shoes 8 from the sensor 14 in advance and store the acquired data in the HDD or the like of the signal processing unit 32 as comparison data for comparison. .

  Another cause is thought to be staggered to support its own weight on one foot. In order to return the inclination of the shaft, a force to return the inclination is applied to the muscles of the soles of the feet, and a rotational moment is generated. The rotational moment is different from the normal movement. In order to measure the rotational moment at the time of one leg standing, it is preferable to use the sensor 14 disposed on the arch portion 52. By observing the fluctuation of the sensor 14, it is possible to determine whether or not the self-weight balance function is satisfied. If the self-weight balance function is unsatisfactory, the analysis results indicate that there is a fear of falling.

  As described above, the signal processing unit 32 according to the present embodiment analyzes whether or not there is a fear of falling by comparing the normal walking data (waveform or the like) with the received detection result.

  In the next step S106, it is determined whether or not an analysis result indicating that there is a fear of falling is obtained. If there is no fear of falling, the process returns to step S100 and this process is repeated. On the other hand, if there is a fear of falling, the process proceeds to step S108.

  In step S <b> 108, the signal processing unit 32 outputs an analysis result indicating that the wireless communication unit 22 has a fear of falling. The wireless communication unit 22 outputs the analysis result to the wireless communication device 40. Thereby, the surrounding person (for example, caregiver) who received the analysis result indicating that there is a fear of falling by the wireless communication device 40 can predict the user's falling and act.

In the next step S110, it is determined whether or not to end. For example, when a predetermined end condition is satisfied, such as when the power supply 18 is turned off, this processing is ended. On the other hand, if the end condition is not satisfied, the process returns to step S100 and repeats this process. As described above, the information processing system 10 according to the present embodiment includes the insole 12 with the built-in sensor 14, the power supply 18, The signal analysis part 20 and the support tool 16 to which the radio | wireless communication part 22 was attached are provided. The inner side 16 </ b> A of the support 16 covers the inner wall surface of the heel part, and houses the wiring 15 that transmits the detection signal of the sensor 14 to the signal analysis unit 20. As the sensor 14, a sensor that is deformed by a user's movement and outputs a voltage generated according to the deformation amount as a detection result is used.

  The signal analysis unit 20 compares the detection result of the sensor 14 with the data during normal walking to analyze the user's movement (for example, the presence or absence of a fall), and the wireless communication unit 22 uses the wireless communication unit 22 to analyze the analysis result. Output to 40.

  As described above, in the information processing system 10 according to the present embodiment, the sensor 14 built in the insole 12 detects the user's movement, and the signal processing unit 32 can analyze the user's movement based on the detection result. Therefore, it is possible to appropriately grasp the movement of the user. Further, since the sensor 14 is deformed by the user's movement and outputs a voltage generated according to the deformation amount as the detection result, the user's movement can be properly grasped with a simpler configuration. .

  Further, in this way, in the information processing system 10 according to the present embodiment, since the wiring 15 is housed in the inner side 16A of the support 16, there is no direct contact with the user. Therefore, there is no concern that the user may get caught when taking off the shoes 8 and putting them on. Moreover, since it is not necessary to provide wiring outside, the burden on the user wearing the shoes 8 is reduced. Moreover, since it does not contact a user, it becomes difficult for the wiring 15 to receive restrictions of a user's movement.

  Moreover, since the information processing system 10 of this Embodiment can be mounted | worn by inserting the insole 12 in the shoes 8, and covering a heel part with the support tool 16, it can apply to many types of shoes. . Moreover, even when changing to other shoes, it is only necessary to wear and cure the information processing system 10.

  In addition, in the information processing system 10 of this Embodiment, although the signal analysis part 20 demonstrated the case where a user analyzed whether a user falls based on the detection result of a sensor, it is not restricted to this. For example, you may use in order to grasp | ascertain a user's movement in rehabilitation or a sport. Moreover, you may use for detecting a user's movement and a position. The sensor 14 may be a sensor for detecting the position, and the signal analysis unit 20 may analyze whether the user has passed a predetermined position and output the analysis result. For example, it is possible to suppress wrinkles by analyzing whether or not the vehicle has passed through the entrance.

  Moreover, you may make it further provide the sensor (for example, GPS (Global Positioning System)) which detects a user's position.

  Moreover, although this Embodiment demonstrated the case where the analysis result of the signal analysis part 20 was output to the radio | wireless communication apparatus 40 by the radio | wireless communication part 22, it is not restricted to this. For example, FIG. 11 shows a functional block diagram of a modification of the information processing system according to the present embodiment. As shown in FIG. 11, a notification unit 60 may be provided to notify the analysis result to the user and the surroundings. As a specific example of such a notification unit 60, there are a unit that gives notification by blinking or lighting of light such as an LED, or a unit that emits a warning sound such as a buzzer. Further, as shown in FIG. 11, a nonvolatile storage unit 62 may be provided to store the analysis result. In this case, the analysis result stored in the storage unit 62 may be periodically transmitted to the wireless communication device 40 by the wireless communication unit 22. A specific example of the storage unit 62 is a non-volatile memory or the like. As a storage unit that stores data in a removable recording medium such as a removable SD card (registered trademark) or USB (Universal Serial Bus). Also good.

  Further, the expiration date of the power source 18 may be maintained by turning on the power source 18 when the load is detected using the reaction force meter 14A.

  Moreover, although this Embodiment demonstrated the case where the information processing system 10 was mounted | worn with the shoes 8 which have a wall surface (backstay) in a heel part, it applies to a sandal, a slipper, etc. which do not have a backstay as a reference example. May be. In this case, the support 16 may be provided so as to cover the lower part from the part that hits the upper or the heel part.

  Further, the power source 18, the signal analysis unit 20, and the wireless communication unit 22 may be attached to the outside of the external side 16B, or may be housed inside.

  In addition, the configuration, operation, and the like of the information processing system 10, the sensor 14, and the signal analysis unit 20 described in the present embodiment are examples, and can be changed according to the situation without departing from the gist of the present invention. Needless to say.

DESCRIPTION OF SYMBOLS 10 Information processing system 12 Insole 14 Sensor, 14A Reaction force meter, 14B Accelerometer 16 Support tool, 16A inner side, 16B External side 15 Wiring 18 Power supply 20 Signal analysis part 22 Wireless communication part

Claims (8)

A sensor that is built into an insole inserted into the footwear, detects the movement of the user wearing the footwear, and outputs a signal representing the detection result;
A support that is connected to the insole and is mounted so as to cover the inside and outside of the wall surface of the heel portion of the footwear from above;
A wiring for transmitting the signal provided in a portion of the support that covers the inside of the wall;
A signal processing unit that is attached to a portion of the support that covers the outside of the wall surface, processes the signal transmitted through the wiring, and outputs a processing result;
Information processing system with The sensor is deformed by a user's movement and outputs a voltage generated according to a deformation amount as the signal.
The information processing system according to claim 1. The sensor includes a reaction force meter and an accelerometer,
The information processing system according to claim 1 or 2. The signal processing unit compares a signal that is predetermined based on a reference motion with a signal that represents the detection result, and performs a process of analyzing the user's motion based on the comparison result.
The information processing system according to any one of claims 1 to 3. The transmitter is attached to a portion covering the outside of the wall surface of the support, and includes a transmission unit that wirelessly transmits a processing result output from the signal processing unit,
The information processing system according to any one of claims 1 to 4. The transmitter is provided at a position corresponding to the rear side of the heel when the support is mounted on the wall surface.
The information processing system according to claim 5. The signal processing unit is provided at a position corresponding to an outer leg side when the support is mounted on the wall surface.
The information processing system according to any one of claims 1 to 6. A power source for driving the signal processing unit, and the power source is provided at a position corresponding to the inner leg side of the foot when the support is mounted on the wall surface;
The information processing system according to any one of claims 1 to 7.