JPWO2013157519A1 - Body pressure sensing switch and feedback system including the same - Google Patents

Abstract

The body pressure sensing switch is mounted on the hole having a hard elastic plate having a hole whose upper surface is open, a pressure switch accommodated in the hole, and a portion larger than the diameter of the hole. And a fluid container that contains fluid. When pressure is applied to the fluid container, the fluid container is deformed so as to bite into the hole, and an ON / OFF signal is detected by the pressure switch.

Description

  The present invention relates to a body pressure sensing switch that detects a change in body pressure distribution according to body movement, and more particularly, a body pressure sensing switch that measures a foot pressure distribution by an ON / OFF signal according to a change in foot pressure, and the same. It is related with the provided feedback system.

The inventor has invented an insole sheet that can recognize the motion while stimulating the sole by increasing or decreasing the load, and the contents thereof have already been disclosed (Patent Document 1). Patent Document 1 recognizes a foot pressure center locus of a foot pressure distribution by sensing a change in load and visualizing an output electric signal. In order to operate the dome spring by the pressure change, the surface member in contact with the sole is limited to a rigid system for compressing body fluid of skin cells. Subsequent research revealed that there was difficulty in durability during repeated use. On the other hand, a feedback system in a large laboratory using a pressure sensor fully is disclosed in a gazette (Patent Document 2). Since Patent Document 2 is a complex and heavy system that obtains a foot pressure center locus of foot pressure distribution by a pressure sensor and controls the posture, it is limited in space and limited to simple motion control such as walking motion. It was. Further, the walking navigation system (Patent Document 3) is also a complicated system using a pressure sensor, and thus has a problem that it can be used only in a limited space.
Japanese Patent No. 4829257 JP 2002-336396 A Japanese Patent No. 4581087

  As the number of people who start walking and sports increases due to the rising health boom, there is an increasing need for correct walking and exercise form acquisition and guidance systems, but large-scale systems limited to specific movements have been announced However, there was no body pressure sensing switch that incorporated a foot pressure sensing function into general footwear to balance comfort and measure body balance.

  The present invention has been made in view of the above points, and a body pressure sensing switch that incorporates a foot pressure sensing function into a general footwear to achieve both comfort and measure a body balance, and a feedback system including the body pressure sensing switch The purpose is to provide.

  The present invention has been made in consideration of the above points, and when sensing a change in body pressure distribution according to body movement, a normal pressure sensor outputs a number of Newton "numeric values" to output the system. Instead of making it heavy, we adopted a method of incorporating it into footwear as a contact switch that conducts when pressure is applied to determine only ON / OFF. Specifically, a hole is opened in the upper part of the hard elastic member, a pressure switch is provided in the space below the hole, and a fluid is formed in a bag shape by a compressible and decompressible sheet (fluid partition wall in FIG. 2) in the upper space. The body pressure sensing switch has a structure in which a fluid storage portion is provided. In addition, the contact protrusion of elastic members, such as rubber | gum, was provided in the center part of the surface which contacts the pressure switch of a fluid accommodating part. As shown in FIG. 3, as the body pressure increases, the fluid housing portion bites into the hole space, and the fluid housing portion contacts the pressure switch to conduct an electrical signal, and the body pressure (particularly, foot pressure) decreases. It is detected that the fluid accommodating portion that has digged into the hole is restored and becomes non-conductive, and is output as an ON / OFF signal.

  The body pressure sensing switch according to the present invention and the feedback system provided with the body pressure sensing switch are provided with a hole having an upper opening in a hard elastic member, a pressure switch is provided in the hole space, and compression recovery is possible in the upper space. A body pressure sensing switch having a structure in which a fluid containing portion enclosing a fluid in a bag shape is provided by a sheet (fluid partition wall in FIG. 2) is used. In addition, the contact protrusion of elastic members, such as rubber | gum, was provided in the center part of the surface which contacts the pressure switch of a fluid accommodating part. Due to the increase in body pressure, the fluid accommodating part bites into the hole space, and the contact protrusion is brought into contact with the pressure switch to conduct. As the body pressure decreases, the fluid container that has bitten into the hole is restored and becomes non-conductive. An ON / OFF signal is output using this principle. By changing the size of the space (the hole diameter) of the rigid elastic member, the pressure required to obtain electrical continuity changes, so it is possible to generate an electrical signal only at locations above a certain pressure. Has characteristics. By converting the output signal into light or vibration, the motion can be sensed in a complex manner and the training effect can be enhanced.

  The body pressure sensing switch and the feedback system including the body pressure sensing device according to the present invention have a relatively small body pressure when the body pressure distribution is sensed by the pressure switch. An ON / OFF signal can be generated. On the other hand, when the hole area is small, the ON / OFF signal can be generated only when a considerably large body pressure is applied. By changing the hole area and controlling the amount of biting into the pressure switch of the fluid storage part, the body pressure distribution can be selectively output as a constant pressure ON / OFF signal. As a result, a complicated heavy system that controls posture based on output data of body pressure distribution sensed by a conventional pressure sensor can be made into a very simple system.

  Embodiments of the present invention will be described below with reference to the drawings. However, such examples do not limit the technical scope of the present invention.

  FIGS. 1-7 is a figure for demonstrating the structure of the body pressure sensing switch in the 1st Embodiment of this invention. Body pressure sensing switch is incorporated in shoes, sandals, slippers, socks, underwear, etc. to sense foot pressure distribution with ON / OFF signal, and measures foot pressure distribution by outputting ON / OFF signal. Can do.

  FIG. 1 is a top view of a footwear base A equipped with a body pressure sensing switch according to a first embodiment of the present invention. On the footwear base A, twelve pressure switches 7 are attached at predetermined foot positions to catch foot pressure. The pressure switch is a switch that is turned on when a pressure equal to or higher than a predetermined threshold is detected, and is turned off when the pressure is lower than the predetermined threshold. Although the footwear base A for the right foot is illustrated, the pressure switch is also provided at a symmetrical position in the footwear base for the left foot. Although not shown, the pressure switch 7 has an output end connected by wiring, and an ON / OFF signal is transmitted to the output control unit via the output end.

  FIG. 2 is a sectional side view of the main part of the body pressure sensing switch B according to the first embodiment of the present invention. The body pressure sensing switch includes a rigid elastic plate 1 having a hole 6 whose upper surface is open, a pressure switch 7 accommodated in the hole 6, and a portion having a diameter larger than the diameter of the hole 6. 6, and a fluid container 4 that accommodates fluid. When pressure is applied to the fluid container 4, the fluid container 4 is deformed so as to bite into the hole, and the pressure switch 7 The ON / OFF signal is output by the pressure switch. A contact protrusion 8 is attached to the side of the fluid storage portion 4 facing the pressure switch 7. The fluid storage part 4 stores the fluid inside by the fluid partition wall 5.

  The fluid container 4 is compressed by increasing or decreasing the foot pressure, and an ON / OFF signal can be output by contacting the pressure switch in the hole of the rigid elastic member. As described above, the pressure switch has a function of conducting when body pressure (foot pressure) is applied and non-conducting when body pressure is released. Any device that can exhibit such a function can be used instead of the pressure switch.

  It is desirable that the elastic member 2 of the second layer is a hard and bendable member and only the fluid containing portion is compressed. The protruding height that faces the sole of the fluid storage portion 4 embedded in the second-layer elastic member 2 may be flat or protrude.

  FIG. 3 is a side cross-sectional view of the main part when the body pressure sensing switch B according to the first embodiment of the present invention is operated, and the second layer fluid containing part 4 is compressed in the region W1. To do. The fluid containing portion 4 compressed in the area W1 is inserted into the hole opening 9 having an area W2 smaller than the area W1, and the contact protrusion 8 comes into contact with the pressure switch 7. The fluid storage unit 4 is stored in a fluid partition wall 5 such as water, gel, or air that can flow, but may be a recoverable member such as silicon.

  The pressure switch 7 and the contact protrusion 8 have a gap in a hole space 6 of an arbitrarily determined size, and are electrically connected and disconnected by the vertical movement of the fluid partition wall 5 having a height H2 larger than the compression sinking height H1 due to an increase in load. The gap for repeating is stably secured.

  FIG. 4 is a diagram showing a unit in which a plurality of body pressure sensing switches B are arranged. For example, the movement of a patient sleeping on a bed on which the sheet is laid can be detected. The body pressure is not limited to the pressure on the sole (foot pressure), and may be the pressure of any part of the body.

  FIG. 5 is a diagram showing the output control unit C and the vibration lighting marker D. The output control unit C receives an ON / OFF signal from each body pressure sensing switch B, and transmits an ON / OFF signal of a predetermined body pressure sensing switch B selected in advance to the vibration lighting marker D. The ON / OFF signal output from the output control unit C is received by the vibration lighting marker D. The vibration lighting marker D is attached so as to come into contact with a specific part (for example, a joint) of a human body, and has a function of generating predetermined vibration, sound, light, or the like in accordance with the received ON signal.

  FIG. 6 is a configuration diagram of a feedback system using the body pressure sensing switch according to the first embodiment of the present invention. It comprises a body pressure sensing switch B, an output control unit C, and a vibration lighting marker (output means) D. Each body pressure sensing switch C mounted on the footwear pedestal A outputs a change in foot pressure as an ON / OFF signal and transmits the output, and the output control unit C (1-12) receives the signal and selects it. A control signal corresponding to the ON / OFF signal of the body pressure sensing switch C is transmitted to the vibration lighting marker D, and the vibration lighting marker D repeats vibration and lighting according to the received signal. D1 shows a vibration generator as an example, and D2 shows a lighting fixture.

  As shown in FIG. 7, by arbitrarily controlling the selection switch of the output control unit C, for example, when the body pressure sensing switch B corresponding to the foot pressure center locus of the exemplary foot pressure distribution outputs an ON signal, or When the body pressure sensing switch B corresponding to the foot pressure center locus of the wrong form outputs an ON signal, the output control unit C controls the signal and sends it to the vibration lighting marker D, thereby leading to the correct form. It can also play a role of navigation. Information on the visual stimulus illuminated by the vibration lighting marker D can be directly displayed in real time by a mirror, a video, or the like.

  When the ON / OFF signal is received and analyzed by a personal computer, changes in foot pressure during walking can be monitored in time series. For example, in walking where the front foot lands, the front foot switch is turned on. Even in this case, even if a slight difference occurs in the time when the thumb is turned on between the thumb side and the little finger side, it is possible to detect the difference. Next, when the heel part changes to a landing state, the forefoot part is turned off, and the heel part switch is turned on instead. It is also possible to detect a time shift in which the left side and the right side of the heel part are turned on. By monitoring such changes in the ON / OFF state over time, changes in the foot pressure distribution when walking in an ideal manner, and changes in the foot pressure distribution when walking in the back of the cat instead. Information such as can be obtained.

  The vibration generating device D1 of the vibration lighting marker D is a small device such as a vibration motor used in a mobile phone, and the lighting device D2 is a device that generates light such as an LED.

  The output control unit C selectively controls the signal output to the vibration lighting marker D with a program suitable for the purpose of the operation in order to feed back the foot pressure information to the vibration lighting marker D for stimulating the joints and muscles. .

  FIG. 7 is a reference diagram in which the center of gravity pattern of X1 having a poor posture becomes the center of gravity pattern of X2 having a good posture by the control of the output control unit C and the vibration lighting marker D.

  Some effects of the present invention are such that sound, vibration, light, and other stimuli generated by signals output according to body movements can be sensed in a complex and simultaneous manner, so that in body movements such as walking and sports Sense of balance of the center of gravity, such as how you are moving, will be much easier to recognize. Furthermore, since it is possible to share mechanical information such as balance of the center of gravity that is difficult to understand visually or tactile information that is difficult to express linguistically when standing on the instructor side such as sports, Much more rational exercise guidance than before is possible.

  In addition, it has become possible to easily introduce mechanical information such as center of gravity balance in sports and rehabilitation guidance, which has traditionally relied on visual information such as external forms. It becomes possible to greatly increase.

  FIG. 8 is a diagram showing a configuration example of a body pressure sensing switch according to the second embodiment of the present invention. In the second embodiment, a general seat switch 7 a is used as the pressure switch 7. The pressure switch 7 is provided as a single film sheet 3 in which a plurality of sheet switches 7a are sandwiched between two layers of film. The ON / OFF signal from the sheet switch 7a is sent to the communication module 30 via the wiring 25 printed on the film. The material of the wiring 25 is a member with low resistance such as copper, silver, or gold.

  The sheet switch 7a is held between two films, and a plurality of resists (spacers) 20 are arranged between the switches 7a in accordance with the height of the sheet switch 7a. Are formed as a single flat film sheet 3.

  The resist 20 is a projection for securing an air layer 21 between them to secure a space for facilitating the restoration of the deflection of the switch even in a sealed state. The resist 20 is a two-layer film made of an insulating material or the like. Are spaced apart in the form of columns.

  The communication module 30 is a module compatible with Bluetooth (registered trademark), Wi-Fi, and the like. Since the purpose of the system is achieved simply by transmitting a simple ON / OFF binary signal, a module equipped with a large-capacity CPU is unnecessary and can be manufactured at a very low cost.

  FIG. 9 is a sectional side view of the main part of the body pressure sensing switch according to the second embodiment of the present invention. The state which covered the elastic system member 2 to the fluid partition 5 whole is shown, and the fluid part is comprised with elastic restoring members 4a, such as a silicon | silicone or rubber | gum.

  The elastic member 2 is preferably a member having a hardness that can support the foot pressure uniformly, and a weak load change is caught in the area C1 region (see FIG. 10) where the supporting force is relatively small. A force acts in the vertical direction on the elastic restoring member 4a.

  The groove 35 is a space for facilitating the vertical movement of the elastic member 2 and is formed so as to surround the pressure switch 7 (seat switch 7a). By forming in the lower part of the elastic system member 2, the movement of the surface layer part of the elastic system member 2 which touches a sole can be made smooth.

  By providing the groove 35, the body fluid of the dermis cells on the sole surface accompanying the load change moves smoothly, and the response performance of pushing and restoring the C1 region of the switch portion is improved.

  The C2 region between the switches has a larger supporting force than the C1 region by the adjustment spacer 10 and the resist 20.

  The adjustment spacer 10 is a spacer for forming a space between the sheet switch 7a and the contact projection 8 in a state where the position corresponding to the hole 6 is open and no pressure is applied, and the load change is adjusted. The threshold value of the pressure to be caught can be adjusted by the thickness of the spacer 10 and the opening area.

  The elastic restoring member 4a and the contact protrusion 8 may be an integral structure of the same material, and the shape and hardness are determined by the threshold value of the foot pressure to be obtained.

  Further, when a threshold value for detecting a change in body pressure is set by using the vertical movement in which the elastic restoring member 4a bites or deforms into the opening portion of the adjusting spacer 10, the elastic system member 2 and the elastic restoring member 4a The contact protrusion 8 can be integrally molded, and the sheet switch 7a can be pushed in or released by the difference in the support force between C1 and C2, thereby connecting / disconnecting conduction.

  The sheet switch reinforcing plate 1a is a hard plate for preventing the deformation of the sheet switch 7a as in the case of the first-layer hard member 1, and is easily reinforced by locally reinforcing to match the size of the foot. It can be cut with etc. The sheet switch reinforcing plate 1a may be locally disposed under the sheet switch 7a, but may be attached to the entire lower surface of the film sheet that houses the sheet switch 7a. The layer structure of the sheet switch reinforcing plate 1a, the film sheet 3, and the adjustment spacer 10 is an elastic plate that performs the function of the hard elastic plate 1 in the first embodiment, and the sheet switch 7a is attached to the layer structure. It becomes the structure accommodated in the provided hole part.

  Further, since the sheet switch reinforcing plate 1a bites into the mold of the shoe sole and the body pressure sensing switch is substantially thinned, it can be easily inserted into a shoe that is generally marketed to improve usability. Of course, the sheet switch reinforcing plate 1a may be an integral hard plate that reinforces the entire film sheet 3.

  The thickness of the adjustment spacer 10 and the area of the opening can be adjusted both by pressing the switch and turning it on and off at the threshold value of the foot pressure motion analysis that the elastic restoring member 4a seeks.

  The most important element of the adjustment spacer 10 is to control the foot pressure action of the seat switch 7a by the amount of biting of the elastic restoring member 4a, and to stably secure a gap between the contact protrusion 8 and the seat switch 7a. A switch function capable of conducting / non-conducting can be realized by compressing (breaking) and restoring the elastic restoring member 4a.

  FIG. 10 is a cross-sectional view of the main part when the body pressure sensing switch according to the second embodiment of the present invention is operated. When the foot pressure in the portion C1 changes slightly, the foot pressure supporting force in the regions C1 and C2 Due to the difference, the second-layer elastic member 2 covering the slightly projecting sheet switch is compressed and deformed, and the elastic restoring member 4a is pushed into the adjustment spacer 10 so that the contact protrusion 8a pushes the upper part of the sheet switch 7a. As a result, the sheet switch 7a conducts and outputs an ON signal.

  The elastic restoring member 4a has a mountain shape (convex shape) with the center of the switch portion as the apex in order to ensure a thickness that can be restored, so that the deformation can be stably restored to the seat switch. And durability is improved.

  The material of the adjustment spacer 10 is a material having air permeability such as a hard system or a non-woven fabric, and it is desirable that there is a space with an air layer that does not give resistance to the compression restoring action of the elastic restoring member 4a.

  FIG. 11 is a diagram illustrating an example of output data of an ON / OFF signal from the sheet switch 7a. FIG. 11 shows examples of output signals from eight seat switches on the right foot side and nine seat switches on the left foot side. The timing of turning on / off each seat switch differs according to the change in the foot pressure distribution. By analyzing these timings, it is possible to analyze the posture and the like.

  As an example, for example, when analyzing the posture during skiing, the body pressure sensing switch according to the present embodiment is incorporated in the sole of the ski boot, and change data of the foot pressure distribution during the skiing can be obtained. . In addition, an impact sensor or the like is incorporated in the stock, and the timing (stock timing) at which the stock strikes the snow surface can be obtained by the impact sensor. Then, by integrating the timing data of the stock timing and the change data of the foot pressure distribution, the foot pressure distribution at the stock timing is extracted from the continuous change of the foot pressure distribution during the run, so that the posture at the stock timing It can be used for analysis. When the center of gravity of the foot pressure distribution at the stock timing is biased toward the heel side, an exemplary form can be easily learned based on the data so that it can be determined that the posture is backward tilted.

  Also, if the vibration lighting marker D described above is attached to the body of the skier, for example, if the information of the foot pressure distribution at the optimal stock timing and the state when the stock impact sensor is turned on can be recognized by sound or light, The inventors' experiments have revealed that it can be naturally corrected to an optimal form without being aware of the form.

  The most effective physical training method by experiment is for users who tend to be out of stock timing. First, let them walk without holding the stock, and use the analysis data of the binary signal to determine the left-right balance and the bias of the center of gravity position. As a result of the correction, the wrinkles were corrected in terms of data, and the stock timing was greatly improved.

  This is an experimental result that shows that adjusting the core balance is a quick way to learn the optimal form as a way to set the timing of “striking and striking” using equipment such as sports.

  The impact sensor used in combination with the body pressure sensing switch in the present embodiment is not limited to ski stock (or stock used for Nordic walking), but includes, for example, golf clubs, baseball bats, tennis clubs, table tennis rackets, and badminton. It can be applied to various tools such as a racket and a rope skipping intermediate portion, and a foot pressure timing at a predetermined timing can be extracted from a continuous change in foot pressure distribution.

  Alternatively, a switch may be attached to a fixed place such as a wall or the ground, and a plurality of pieces of information shot by video, etc. may be integrated by sampling data of hitting and striking body motion, foot pressure distribution data, and the like.

  The impact sensor may be a mechanism that detects a predetermined operation, and may be a tact switch or a coil-type switch, and is turned on / off by vibration to cause a ball to bounce and contact chattering to be conducted. It is also possible to use a commercially available switch such as a switch or a conducting type.

1 is a top view of footwear in a first embodiment of the present invention. It is a sectional side view of the body pressure sensing switch in the first embodiment of the present invention. It is a sectional side view at the time of the effect | action of the body pressure sensing switch in the example of 1st embodiment of this invention. It is side sectional drawing of the footwear base A in the example of 1st embodiment of this invention. It is the figure which showed the output control unit C and the vibration lighting marker D in the example of 1st embodiment of this invention. It is a block diagram of the feedback system using the body pressure sensing switch by 1st embodiment of this invention. It is an application example of the system in the first embodiment of the present invention. It is a top view which shows the structure of the body pressure sensing switch in the 2nd embodiment of this invention. It is a principal part sectional side view of the body pressure control switch in the example of 2nd embodiment of this invention. It is principal part side sectional drawing at the time of the effect | action of the body pressure control switch in the example of 2nd embodiment of this invention. It is a figure which shows the output data example of the ON / OFF signal from the sheet switch 7a.

  B: body pressure sensing switch, C: output control unit, D: vibration lighting marker, 1: hard member, 1a: sheet switch reinforcing plate, 2: elastic member, 3: film sheet, 4: fluid housing part, 4a : Elastic restoring member, 5: fluid partition, 6: hole, 7: pressure switch, 7a: sheet switch, 8: contact protrusion, 10: adjustment spacer, 20: resist (columnar), 35: groove

Claims (5)

A hard elastic plate having a hole with an open upper surface;
A pressure switch received in the hole;
A fluid housing portion that has a portion larger than the diameter of the hole portion and is placed on the hole portion and accommodates a fluid, and when the pressure is applied to the fluid housing portion, the fluid housing portion is a hole. A body pressure sensing switch, wherein the body pressure sensing switch is deformed so as to bite into the part and an ON / OFF signal is detected by the pressure switch.   2. The body pressure sensing switch according to claim 1, wherein an elastic plate is laminated on the hard elastic plate, and the fluid accommodating portion is embedded in the elastic plate. An elastic plate having a hole with an open upper surface;
A pressure switch received in the hole;
An elastic restoring member that has a portion larger than the diameter of the hole and is placed on the hole, deforms when pressure is applied, and restores when released from the pressure;
The body pressure sensing switch, wherein when pressure is applied to the elastic restoring member, the elastic restoring member is deformed so as to bite into the hole, and an ON / OFF signal is detected by the pressure switch.   The elastic plate includes a hard plate on which the pressure switch is mounted, a film sheet laminated on the hard plate and containing the pressure switch, and laminated on the film sheet between the pressure switch and the elastic restoring member. The body pressure sensing switch according to claim 3, further comprising a spacer for forming a space, wherein the film sheet and the spacer form the hole. A rigid elastic plate having a hole with an open top surface, a plurality of pressure switches accommodated in the hole, and a portion having a portion larger than the diameter of the hole, and placed on the hole, When the pressure is applied to the fluid containing part, the fluid containing part is deformed so as to bite into the hole, and ON / OFF signals are detected by the plurality of pressure switches. Body pressure sensing switch,
An output control unit that receives ON / OFF signals from the plurality of pressure switches and outputs a control signal based on an ON / OFF signal from at least one pressure switch selected from the plurality of pressure switches;
And an output unit that receives the control signal and generates at least one of vibration, sound, and light based on the control signal.

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