JP6294794B2 - Load distribution display system, load distribution display method and program thereof - Google Patents

Description

  The present invention relates to a load distribution display system, a load distribution display method, and a program thereof that measure a load distribution of a measurement target and display the measurement result on a display unit.

  Rehabilitation (hereinafter abbreviated as “rehabilitation”) is performed on patients whose motor function has declined due to severe illness or long-term hospitalization due to illness. At this time, it is important to grasp the balance between the left and right body parts (for example, both the left and right feet). Therefore, a load distribution display system has been developed that measures and displays the load applied to the detection surface from the left and right feet by placing both the left and right feet of the patient on the detection surface.

  For example, although not for medical use, Patent Document 1 discloses an input interface device (measuring device) that measures a load distribution. This measuring apparatus has a configuration in which a plurality of detection cells having a dielectric layer are arranged in a matrix to form a detection surface, and a load applied to each detection cell is detected.

  For example, planar load distribution data detected by the detection surface is transmitted to an external information processing device or the like, and the information processing device forms a contour graph or the like representing the load distribution on the display unit based on the load distribution data. indicate. Moreover, the information processing apparatus can more easily grasp the balance of the patient's load by adding the load data detected by each detection cell and displaying the sum as a total load value.

JP 2012-13458 A

  However, the total load value obtained by adding the load data of a plurality of detection cells changes easily in a short time due to slight factors such as a change in the center of gravity of the patient and shaking. If the load total value changes in a short time in this way, even if the calculated load total value is displayed, the discriminability of the load total value by the user is reduced, and it is determined how much the load value is. Difficult to do.

  The present invention has been made in view of the above situation, and by rounding the load value based on the display resolution, the load display value can be easily recognized and the usability can be further improved. It is an object to provide a distribution display method and a program thereof.

In order to achieve the above object, the present invention is a load distribution display system that measures a load distribution of a measurement object by a pressure detection unit in which a plurality of detection cells are arranged, and displays the measurement result on a display unit. The load value calculating means for calculating the load value based on the load information for each of the plurality of detection cells and the display resolution prepared to be adjustable are automatically set, and the load value calculating means and the load value calculated, based on said display resolution set, have a, a load value display processing means for coarse load display value rounded to the load value,
The load value display processing means lowers the display resolution as the number of the detection cells in which the load information indicates a value equal to or greater than a threshold value increases . In order to achieve the above object, the present invention is a load distribution display system for measuring a load distribution of a measurement object by a pressure detection unit in which a plurality of detection cells are arranged and displaying the measurement result on a display unit. The load value calculating means for calculating the load value based on the load information for each of the plurality of detection cells and the display resolution prepared to be adjustable are automatically set, and the load value calculating means Load value display processing means for rounding the load value to obtain a coarse load display value based on the calculated load value and the set display resolution, and the load value display processing means comprises the measurement The display resolution is lowered as the amount of deviation between the theoretical value of the load applied from the object and the actual value detected from the measurement object by the pressure detection unit increases.

According to the above, since the load distribution display system has the load value display processing means, the calculated load value is rounded to obtain a coarse load display value, so that the user can easily recognize the load value to be measured. it can. In other words, even if the calculated load value repeatedly fluctuates, the load distribution display system displays the roughly rounded load display value, thereby suppressing the fluctuation of the load display value in a short time and easily. Display. Thereby, the load display value can be easily identified for the user. That is, the load distribution display system can further improve usability and can be used more effectively in, for example, rehabilitation. Further, the load value display processing means can display a load display value that sufficiently includes errors of a large number of detection cells by lowering the display resolution as the number of detection cells equal to or greater than the threshold value increases. Alternatively, the load value display processing means can obtain a load display value including a measurement error of the pressure detection unit by lowering the display resolution as the amount of deviation between the theoretical value and the actual measurement value increases. As a result, the user feels that the load increases or decreases in proportion, and can recognize the load display value without a sense of incongruity.

  In this case, the pressure detection unit measures body pressure received from the left and right body parts of the subject to be measured, and the load value calculation means includes a plurality of detection cells measured by the plurality of detection cells. Based on the load information, the left load total value and the right load total value, which are the load values of the left and right body pressures, are calculated, and the load value display processing means rounds the left load total value and the right load total value. It can be configured.

  Thus, the user can recognize the balance of the left and right body parts well by rounding the calculated left load total value and right load total value by the load value display processing means.

  Further, the load distribution display system calculates the load ratio of the left and right body pressures based on the left load total value and the right load total value calculated by the load value calculation means, and directly displays the display unit as a load ratio display. It is preferable to have a load ratio display processing means for displaying the above.

  Thus, the load distribution display system displays the load ratio of the left and right body parts together with the left load total value and the right load total value by having the load ratio display processing means, thereby further improving usability. Can do.

  Alternatively, based on the left load total value and the right load total value rounded by the load value display processing means, a load ratio between the left and right body pressures is calculated, and a load ratio display is displayed on the display unit as a load ratio display. The structure which has a processing means may be sufficient.

  In this way, the load distribution system displays the load ratio based on the left load total value and the right load total value rounded by the load value display processing means, thereby suppressing the load ratio display from fluctuating in a short time and easily. And display it stably. In particular, the display change of the left load display value and the right load display value and the display change of the load ratio occur at the same time, so that the user can easily recognize the load ratio of the left and right body pressures by checking the display contents without a sense of incongruity. it can.

In order to achieve the above object, the present invention provides a load distribution display method for measuring a load distribution of a measurement object by a pressure detection unit in which a plurality of detection cells are arranged and displaying the measurement result on a display unit. The load value calculation means calculates the load value based on the load information for each of the plurality of detection cells, and the load value display processing means automatically sets one of the display resolutions that can be adjusted. And based on the load value calculated by the load value calculation means and the set display resolution, the load value is rounded to a rough load display value, and the load information indicates a value equal to or greater than a threshold value. The display resolution is lowered as the number of detection cells increases . Furthermore, in order to achieve the above object, the present invention provides a load distribution display method for measuring a load distribution of a measurement object by a pressure detection unit in which a plurality of detection cells are arranged and displaying the measurement result on a display unit. The load value calculation means calculates the load value based on the load information for each of the plurality of detection cells, and the load value display processing means automatically selects one of the display resolutions that can be adjusted. While setting, based on the load value calculated by the load value calculation means and the set display resolution, the load value is rounded to a rough load display value, the theoretical value of the load applied from the measurement object, The display resolution is lowered as the amount of deviation from the actual measurement value detected by the pressure detection unit from the measurement object increases.

Furthermore, in order to achieve the above object, the present invention provides a computer capable of displaying a measurement result of a load distribution of a measurement object measured by a pressure detection unit in which a plurality of detection cells are arranged on a display unit. A load distribution display program to be executed, wherein the computer automatically selects one of a load value calculation means for calculating a load value based on load information for each of the plurality of detection cells, and an adjustable display resolution. The load value is rounded to a rough load display value based on the load value calculated by the load value calculation means and the set display resolution, and the load information is a value equal to or greater than a threshold value. the number of the detection cell showing a load value display processing means for Ru lowering the display resolution according to increased including those to function as a. Furthermore, in order to achieve the above object, the present invention provides a computer capable of displaying a measurement result of a load distribution of a measurement object measured by a pressure detection unit in which a plurality of detection cells are arranged on a display unit. The load distribution display program executed in step (i), wherein the computer has one of a load value calculation means for calculating a load value based on load information for each of the plurality of detection cells, and an adjustable display resolution. The load value is automatically set, and based on the load value calculated by the load value calculation means and the set display resolution, the load value is rounded to obtain a rough load display value, and the theory of the load applied from the measurement target As the amount of deviation between the value and the actual value detected from the measurement object by the pressure detection unit increases, the load value display processing means for reducing the display resolution is caused to function. Including the.

  According to the present invention, by rounding the load value based on the display resolution, the load display value can be easily recognized, and usability can be further improved.

It is explanatory drawing which shows roughly the whole structure of the load distribution display system which concerns on one Embodiment of this invention. 2A is a plan view showing the measurement apparatus of FIG. 1, FIG. 2B is a side view of the measurement apparatus of FIG. 2A, and FIG. 2C is a diagram in which the rear case of the measurement apparatus of FIG. It is a top view which shows a state. It is a block diagram which shows the internal structure of the measuring device and terminal device of FIG. It is explanatory drawing which shows the load screen information displayed on the display screen of the terminal device of FIG. It is a functional block diagram constructed | assembled in implementation of the load distribution display method by the measurement side control part and terminal side control part of FIG. FIG. 6A is a chart schematically showing a data map included in the display resolution setting unit of FIG. 5, and FIG. 6B is an illustrative explanation of the left load display value when the display resolution is applied to the left load total value. FIG. It is a graph which shows the relationship between the load from a measuring object, and the load total value which a load distribution display system calculates.

  Hereinafter, the load distribution display system and the load distribution display program according to the present invention will be described in detail with reference to the accompanying drawings by giving preferred embodiments in relation to the load distribution display method.

  The load distribution display system 10 according to the present embodiment recognizes the load balance of the body part of the patient C (subject) and retrains the body part in rehabilitation or the like for recovery of motor function. Used for. As shown in FIG. 1, the load distribution display system 10 includes a measuring device 12 and a terminal device 14 (information processing device).

  The staff P such as a physical therapist makes the patient C stand upright on the measuring device 12 during rehabilitation, and detects the load applied from both feet of the patient C by the measuring device 12. The measuring device 12 planarly detects such body pressure (hereinafter referred to as foot pressure) from the sole C1, which is the left and right body parts of the patient C. That is, the foot pressure distribution state is measured as the load distribution.

  Further, the terminal device 14 acquires the load data d and the load distribution data Df (foot pressure distribution state) measured by the measuring device 12, and the staff P and the patient C (hereinafter collectively referred to as the user U) confirm them. Generate easy screen information. The staff P can check the load balance of the foot pressure of the patient C while holding the terminal device 14 and looking at the display, and can give an instruction to the patient C to exercise for rehabilitation.

  Needless to say, the load distribution display system 10 is not limited to the measurement and display of foot pressure. For example, the load distribution display system 10 may sit on the measuring device 12 with the buttocks and measure and display the pressure applied from the buttocks. Further, the load distribution display system 10 is not limited to use during rehabilitation, and can be used in various forms such as motor function diagnosis, health check, exercise training, game, and the like. Furthermore, the measuring device 12 and the terminal device 14 can be used freely according to the usage form. For example, since the user U recognizes his / her load balance, the measuring device 12 and the terminal device 14 can be used alone. Good.

  Hereinafter, a specific configuration of the load distribution display system 10 will be described. The measuring device 12 includes a housing 16 configured to have a strength that does not break even when a large weight is applied. The housing 16 includes a measurement unit 18 formed in a substantially flat plate shape, and a device storage unit 20 connected to one end side (front side) of the measurement unit 18. The measurement unit 18 is a portion on which a patient C as a measurement target rides, and a pressure detection unit 22 (see also FIG. 3) is provided therein.

  A known configuration such as a capacitance type load sensor can be applied to the pressure detection unit 22. For example, a capacitance type load sensor can be configured by forming a dielectric layer with conductive rubber or the like, and disposing electrodes extending in the form of a substrate and a long plate on the upper and lower surfaces of the dielectric layer. A plurality of electrodes are arranged along the surface direction of the measurement unit 18, and the upper electrode and the lower electrode are orthogonal to each other, whereby the detection cell 24 (which can hold the capacitance between the upper and lower electrodes) ( 2A). The pressure detection unit 22 formed by arranging a plurality of detection cells 24 is deformed by applying pressure in the downward direction (direction perpendicular to the surface direction) from the sole C1 on the measurement unit 18. (The thickness is changed), and the capacitance of each detection cell 24 is changed. Therefore, the measuring device 12 can measure the pressure applied to the cell itself by detecting the capacitance of the detection cell 24 and obtain the load data d (pressure value: load information). Further, the measuring device 12 can construct load distribution data Df (matrix pressure value: load distribution information) which is a planar load distribution state from the load data d of each detection cell 24 in a matrix.

  As shown in FIGS. 1 and 2A, the patient C stands upright in a direction orthogonal to the front-rear direction in which the measurement unit 18 and the device storage unit 20 of the measurement device 12 are aligned 90 °. Therefore, for example, in a state where the patient C is on the measuring device 12, the device housing portion 20 is positioned on the left side. A guide line 26 for guiding the arrangement of both feet may be printed on the upper surface (detection surface 18a) of the measurement unit 18 that overlaps the pressure detection unit 22 described above. The guide line 26 is composed of a rectangular frame line 26a and a center line 26b extending in the front-rear direction at the center in the width direction of the frame line 26a, and the main ball and the heel are arranged in the front-rear direction across the center line 26b. To guide. Accordingly, the patient C can smoothly ride on the detection surface 18a in accordance with the guide line 26. In addition, with respect to the detection surface 18a having a constant upper surface and lower surface thickness, the left and right ends of the measurement unit 18 are gradually thinned by drawing a circular arc in cross section, thereby forming a smooth slope 18b.

  In addition, a hinge portion 28 is provided in the middle portion in the front-rear direction of the measurement portion 18, and the measurement portion 18 is divided into a front case 30 and a rear case 32 with the hinge portion 28 as a base point. The patient C places the left foot on the front case 30 and the right foot on the rear case 32 based on the hinge 28. As shown in FIG. 2B, the rear case 32 is rotated 180 ° relative to the front case 30 by the hinge portion 28. Thereby, the detection surface 18a of the front case 30 and the detection surface 18a of the rear case 32 are stored facing each other, and the pressure detection unit 22 can be protected.

  In a state where the front case 30 and the rear case 32 overlap with each other, as shown in FIG. 2C, the measurement unit 18 is substantially halved in a plan view, so that the measurement device 12 can be easily carried. Moreover, the surface on the opposite side to the detection surface 18a of the front case 30 and the rear case 32 includes a plurality of convex portions 34 arranged side by side in the front-rear and left-right directions. The plurality of convex portions 34 prevent the measuring device 12 from being displaced by supporting the measuring portion 18 with an elastic and high frictional force.

  The device accommodating portion 20 is formed in a rectangular shape having a thickness that matches the thickness of the front case 30 and the rear case 32 being overlapped, and has a short front-rear width and a long left-right width (matching the left-right width of the measurement unit 18). ing. A handle 20a is provided at the front end of the device housing portion 20 for gripping the measuring device 12 when carrying it. As shown in FIG. 3, a measurement side control unit 36, a battery 38, and a communication module 40 are provided inside the device housing unit 20. An operation button 42 for driving the measuring device 12 is provided on the outer surface of the device housing unit 20.

  The measurement side control unit 36 is configured as a computer including an arithmetic processing unit, a storage unit, an input / output unit, and the like (not shown). A measurement program 44 is stored in the storage unit of the measurement-side control unit 36. The measurement-side control unit 36 performs various measurement processes when the arithmetic processing unit executes the measurement program 44. For example, the pressure detection unit 22 is operated to acquire matrix-shaped load data d (that is, load distribution data Df), and the load distribution data Df acquired by operating the communication module 40 is transmitted to the outside.

  The communication module 40 is a communication device for the measurement device 12 to perform wireless communication with an external device. The communication module 40 transmits the load distribution data Df from the measurement device 12 to the terminal device 14 under the control of the measurement side control unit 36. The communication module 40 can also receive a control signal from the terminal device 14. As the communication module 40, for example, a module adopting a short-range wireless communication standard such as a wireless LAN or Bluetooth (registered trademark) can be applied. Note that the measurement device 12 and the terminal device 14 may be configured to perform data communication through a wired connection such as a USB or other communication line.

  The operation button 42 constitutes an operation unit for the user U to operate the measuring device 12. For example, the operation button 42 includes a power button 42a for turning on / off the power supply, a measurement operation button 42b for starting and resetting measurement, and the like.

  The battery 38 supplies power to a configuration (pressure detection unit 22, measurement-side control unit 36, communication module 40, etc.) that is electrically driven in the measurement device 12. Note that the power source of the measuring device 12 is not limited to the battery 38, and various configurations can be employed. For example, power may be supplied from an external power source by a power plug (not shown).

  On the other hand, the terminal device 14 is an information processing device that receives the load distribution data Df from the measurement device 12 and performs display based on the load distribution data Df. The terminal device 14 includes a terminal-side control unit 50, a communication module 52, a display unit 54, an operation unit 56, a camera 58, a battery 60, and the like as internal devices. The terminal device 14 is preferably one that the user U can easily carry. For example, as the terminal device 14, a portable information terminal such as a tablet terminal or a PDA, a mobile phone including a smartphone, a laptop computer, a wearable computer, or other information communication device can be applied. Below, the case where a tablet terminal is applied as the terminal device 14 is demonstrated. The information processing apparatus is not limited to a portable configuration, and may be a mounting type such as a desktop computer.

  The terminal-side control unit 50 constitutes an information processing unit (computer) including an arithmetic processing unit, a storage unit, an input / output unit, and the like (not shown). Further, a load distribution display program 51 is stored in the storage unit of the terminal side control unit 50 so as to be executable. The load distribution display program 51 may be attached to, for example, the measuring device 12 and is installed as an application of the terminal device 14 by connecting the terminal device 14 and the measuring device 12 so as to communicate with each other. Of course, the load distribution display program 51 can also be acquired via a network or a medium (not shown). In the terminal device 14, under the operation of the user U, the arithmetic processing unit reads and executes the load distribution display program 51, constructs a functional unit to be described later, and generates screen information.

  Further, the terminal-side control unit 50 appropriately controls the internal devices of the terminal device 14 based on the execution of the load distribution display program 51. Further, the terminal-side control unit 50 may be configured to control the operation of the measurement device 12 (power on / off, measurement by the pressure detection unit 22, reset, etc.) by wireless communication or wired communication.

  The communication module 52 is a communication device for the terminal device 14 to perform wireless communication with an external device. As the communication module 52, a module that implements the same short-range wireless communication standard as the communication module 40 of the measuring apparatus 12 is applied. The communication module 52 opens a communication line with the measuring device 12 under the control of the terminal-side control unit 50 and receives load distribution data Df transmitted from the measuring device 12. The terminal device 14 may include a plurality of types of communication modules, and may be configured to be simultaneously connected to an external device such as a computer or a printer in addition to the measurement device 12.

  The display unit 54 is mounted to display the screen information generated by the terminal-side control unit 50, and exposes a large display screen 54a on one surface of the flat housing of the tablet terminal. When measuring the foot pressure, the load distribution data Df measured by the measuring device 12 is displayed on the display screen 54a in an appropriate display form (see FIG. 4). For example, the display unit 54 may be configured by a liquid crystal display, an organic EL display, or the like. Further, the display unit 54 may be separated from the terminal device 14 or may be provided at a position away from the terminal device 14.

  The operation unit 56 is provided for the user U to operate the terminal device 14. In the tablet terminal, the touch panel stacked on the display screen 54a of the display unit 54 serves as the operation unit 56, and processing corresponding to the operation is performed by appropriately operating the screen information displayed on the display screen 54a with a finger or the like. . In addition to the touch panel, the operation unit 56 can include a push button 56 a provided on the casing of the terminal device 14 or an external connection device (such as a mouse or a keyboard) that can operate the terminal device 14.

  The camera 58 has a function of shooting an image (still image or moving image) with a shooting lens (not shown) provided in the terminal device 14. The terminal-side control unit 50 may prompt the user to take an image of the patient C along with the acquisition of the load distribution data Df by the measurement device 12 by executing the load distribution display program 51. The captured image of the patient C can be used effectively during rehabilitation by displaying it on the display unit 54 together with the load distribution data Df.

  The battery 60 supplies power to the internal equipment of the terminal device 14. Note that various configurations can be applied to the power supply of the terminal device 14 as in the measurement device 12.

  Next, the load screen information IF displayed on the display unit 54 of the terminal device 14 will be described with reference to FIG. The terminal device 14 displays the load distribution image portion 62, the load total value image portion 64, and the load ratio image portion 66 as the load screen information IF by receiving and processing the load distribution data Df measured by the measuring device 12.

  Specifically, the load distribution image unit 62 is displayed as a large contour graph (gradation of hue change) in the center of the display screen 54 a of the display unit 54. The load distribution image unit 62 displays a rectangular display frame line 62a simulating the guide line 26 of the measuring apparatus 12, and displays a plurality of ruled lines 62b in a grid pattern in the display frame line 62a. In addition, a display center line 62c is displayed at the left and right center and the top and bottom center of the display frame line 62a. In the display frame line 62a, the foot pressure distribution state is displayed based on the measured load distribution data Df.

  The terminal-side control unit 50 color-codes the foot pressure stepwise according to the load data d detected by each detection cell 24 (for example, the color “purple” of the high wavelength according to the change from the low pressure value to the high pressure value). To a low wavelength color “red” in a stepwise manner). Therefore, when the load data d are close to each other, they are colored in the same color. As a result, the left and right foot prints corresponding to the load data d are displayed in the load distribution image portion 62. For example, the periphery of the foot shape (toes, arches, etc.) is displayed in purple, blue, or light blue color coding due to the low pressure value. The pressure value is slightly higher at the inner portion than the periphery of the foot shape, so that the color is displayed in green or yellow. Furthermore, it is displayed in orange or red due to the high pressure value applied from the front side of the footprint or the heel.

  In addition, on the load distribution image portion 62, based on the load distribution state, the center-of-gravity position information 68 of the patient C (a position where the load can be balanced on the two-dimensional plane) is displayed in an overlapping manner. The terminal-side control unit 50 may allow the user U to recognize the movement of the gravity center position according to the time change by continuously storing and displaying the locus of the gravity center position information 68 for a certain period of time.

  On the other hand, the load total value image portion 64 is a portion where the load data d detected by each detection cell 24 is added and a numerical value is displayed. The terminal-side control unit 50 can separately process the load distribution of the left and right body parts, separately calculates the total load value of the left foot and the right foot, and outputs the left load display value and the right load display value. Display separately. In the load screen information IF according to the present embodiment, the left load image portion 64a is disposed on the left side and the lower side of the load distribution image portion 62, and the right load image portion 64b is disposed on the right side and the lower side of the load distribution image portion 62. It is arranged. Moreover, the terminal side control part 50 displays the numerical value (total load total value) which added up all the load values of both feet as a total load display value on the total load image part 64c. The total load image part 64c is arranged above the load distribution image part 62 and at the center of the left and right.

  And when the terminal side control part 50 displays the total load total value (left load total value, right load total value, total load total value) on the load total value image part 64, the resolution is deliberately changed. (I.e., round the numerical value to make it rough). This configuration will be described in detail later.

  The load ratio image portion 66 is a ratio of the left load total value to the total value of the left load total value and the right load total value (left load ratio) and a ratio of the right load total value (right load). Ratio). The left load ratio image portion 66a is arranged on the left side of the load distribution image portion 62 and above the left load image portion 64a, and the right load ratio image portion 66b is on the right side of the load distribution image portion 62 and the right load image portion 64b. Is disposed above. The left load ratio and the right load ratio are displayed as a bar graph (left load ratio bar graph, right load ratio bar graph) and numerical values (left load ratio display value, right load ratio display value). Thereby, it becomes easy for the user U to recognize a load ratio sensuously.

  Next, with reference to FIG. 5, the functional part of the load distribution display system 10 that generates the load screen information IF will be described in detail. The measurement side control unit 36 of the measurement device 12 functionally constructs the load distribution acquisition unit 70 and the transmission data generation unit 71 by executing the measurement program 44.

  The load distribution acquisition unit 70 detects the capacitance by controlling the operation of the pressure detection unit 22, and acquires load data d for each detection cell 24. When detecting the capacitance, conversion to a voltage signal, amplification, correction, and the like may be appropriately performed. The transmission data generation unit 71 sets each load data d acquired by the load distribution acquisition unit 70 in a state where it can be transmitted to the terminal device 14 and sends a transmission instruction to the measurement side control unit 36 (or the terminal side control unit 50). Send regularly or irregularly.

  On the other hand, the terminal-side control unit 50 of the terminal device 14 executes the load distribution display program 51 to transmit the transmission data acquisition unit 72, the load distribution calculation unit 73, the load distribution display setting unit 74, the centroid position calculation unit 75, and the centroid display setting. Unit 76, load value calculation unit 77 (load value calculation unit), load value display processing unit 78 (load value display processing unit), load ratio display processing unit 79 (load ratio display processing unit), and screen information forming unit 80 To build.

  The transmission data acquisition unit 72 receives the load data d of each detection cell 24 transmitted from the transmission data generation unit 71 of the measurement device 12 and temporarily stores it in the memory in the terminal device 14. The load distribution calculation unit 73 appropriately corrects each load data d stored in the memory, and calculates each load value having a two-dimensional coordinate position according to each detection cell 24. That is, a planar distribution state of foot pressure is generated. The load distribution display setting unit 74 assigns a color according to each load value calculated by the load distribution calculation unit 73 and generates a load distribution image unit 62.

  The center-of-gravity position calculation unit 75 calculates the center of gravity of the entire load in two dimensions based on each load value calculated by the load distribution calculation unit 73. The center-of-gravity display setting unit 76 generates the center-of-gravity position information 68 to be displayed on the load distribution image unit 62 based on the center of gravity calculated by the center-of-gravity position calculation unit 75.

  On the other hand, the load value calculation unit 77 adds the respective load values of the load distribution calculation unit 73 to obtain a left load total value that is a load on the left side of the display center line 62c and a load on the right side of the display center line 62c. The right load total value and the total load total value that is the load in the display frame line 62a are calculated.

  The load value display processing unit 78 is a functional unit that lowers the display resolution of each load total value of the load value calculation unit 77 and sets each display value. Inside the load value display processing unit 78, a display resolution setting unit 81, a left load display setting unit 82, a right load display setting unit 83, and a total load display setting unit 84 are provided.

  The display resolution setting unit 81 has information on an adjustable display resolution (see FIG. 6A), and sets this display resolution. In particular, in the present embodiment, the display resolution is set based on the total load value calculated by the load value calculation unit 77. The left load display setting unit 82, the right load display setting unit 83, and the total load display setting unit 84 change the left load total value, the right load total value, and the total load total value based on the set display resolution, Left load display value, right load display value, total load display value.

  On the other hand, the load ratio display processing unit 79 is a functional unit that calculates and displays the load ratio based on the left load total value, the right load total value, and the total load total value calculated by the load value calculation unit 77. The load ratio display processing unit 79 includes a load ratio calculation unit 85, a left load ratio display setting unit 86, and a right load ratio display setting unit 87.

  The load ratio calculation unit 85 calculates a left load ratio that is a ratio of the left load to the total load and a right load ratio that is a ratio of the right load to the total load. The left load ratio display setting unit 86 generates a left load ratio display value and a left load ratio bar graph based on the left load ratio calculated by the load ratio calculation unit 85. The right load ratio display setting unit 87 generates a right load ratio display value and a right load ratio bar graph based on the right load ratio calculated by the load ratio calculation unit 85.

  Further, the screen information forming unit 80 arranges each display generated by each setting unit in the load distribution image unit 62, the load total value image unit 64, and the load ratio image unit 66 shown in FIG. Is displayed on the display unit 54.

  The load distribution display system 10 according to the present embodiment is basically configured as described above, and the load distribution display method of the load distribution display system 10 and the effects thereof will be described below.

  The load distribution display system 10 rounds the load total values (left load total value, right load total value, total load total value) measured and calculated by the above-described display resolution setting unit 81 (see FIG. 5). Process to display.

  Here, the total load value calculated by the load value calculation unit 77 is summed from the detection values (load data d) detected by the detection cells 24 of the measuring device 12 as described above. For this reason, the load data d of the plurality of detection cells 24 fluctuate even if the patient C slightly adjusts the load, and the load total value (particularly, the left load total value and the right load total value) increases or decreases in conjunction with this. To do. For example, even if the patient C intends to be stationary, the calculated total load value easily fluctuates due to body reaction (such as shaking). Therefore, if the calculated total load value is displayed on the display unit 54 as it is, the display value fluctuates in a short time and does not stabilize, and the information becomes difficult for the user U to see.

  The display resolution setting unit 81 automatically and stepwise adjusts the display resolution based on the total load value in order to eliminate the difficulty in viewing the display as described above. Specifically, the display resolution setting unit 81 includes a data map of resolution units corresponding to the range of the load total value as shown in FIG. 6A in the application. Then, based on the calculated total load value, the display resolution (resolution unit) is set with reference to the data map.

  For example, when the calculated total load value is in the range of 0 kg to 10 kg, the display resolution setting unit 81 sets the display resolution to 1 kg in units of resolution. Note that the total load value is calculated by the load value calculation unit 77 in gram units (that is, in the kilogram unit with three decimal points). The display resolution set by the display resolution setting unit 81 is sent to each load display setting unit (left load display setting unit 82, right load display setting unit 83, total load display setting unit 84) and displayed by each load display setting unit. The change process is performed. As a result, the load total value image portion 64 (left load image portion 64a, right load image portion 64b, total load image portion 64c) has discrete load display values (left load display values) of 1, 2, 3,. , Right load display value, total load display value).

  Here, examples of processing (rounding processing) performed by each load display setting unit include “carrying down”, “carrying up”, “rounding off”, and the like. “Drawdown” is a rounding process in which a value equal to or less than the resolution unit is set to 0 (rounded down). For example, when the calculated load value is 1.400, 0.400 is set to 0 and the load value is set to 1. In the case of 500, 0.500 is set to 0 and 1 is set. “Rounding” is a rounding process that increases to the next higher value when there is a value equal to or lower than the resolution unit. For example, it is set to 2 when the load values are 1.400 and 1.500. “Rounding off” is a rounding process that rounds off at an intermediate value of the resolution unit. For example, when the load value is 1.400, it is rounded down to 1, and when the load value is 1.500, it is rounded up to 2. .

  Any of these rounding processes may be used when applying the display resolution, and the terminal-side control unit 50 may have a function of changing the setting mode of the rounding process by a user operation. Hereinafter, the rounding process of the display resolution will be described in detail on the assumption that “retraction” is performed.

  The display resolution setting unit 81 sets the display resolution to 2 kg in units of resolution when the calculated total load value is in the range of 10 kg to 20 kg. Thereby, discrete load display values of 10, 12, 14,... Are displayed in the load total value image portion 64. For example, as shown in Ex1 of FIG. 6B, if the left load total value calculated by the load value calculation unit 77 is 19.910, the left load display setting unit 82 displays 18 as the left load display value. .

  Furthermore, when the calculated total load value is in the range of 20 kg to 40 kg, the display resolution setting unit 81 sets the display resolution to 5 kg in units of resolution. As a result, discrete load display values 20, 25, 30,... Are displayed in the load total value image portion 64. For example, as shown in Ex2 of FIG. 6B, if the left load total value calculated by the load value calculation unit 77 is 26.224, the left load display setting unit 82 displays 25 as the left load display value. . Alternatively, as indicated by Ex3 in FIG. 6B, if the left load total value calculated by the load value calculation unit 77 is 39.953, the left load display setting unit 82 displays 35 as the left load display value. .

  Further, the display resolution setting unit 81 sets the display resolution to 10 kg in units of resolution when the calculated total load value is in the range of 40 kg. Thereby, discrete load display values of 40, 50, 60,... Are displayed in the load total value image portion 64. For example, as shown in Ex4 of FIG. 6B, if the left load total value calculated by the load value calculation unit 77 is 42.523, the left load display setting unit 82 displays 40 as the left load display value. . Alternatively, as shown in Ex5 of FIG. 6B, even if the left load total value calculated by the load value calculation unit 77 is 48.895, the left load display setting unit 82 displays 40 as the left load display value. To do.

  In this way, the load value can be easily recognized by the user U by automatically adjusting the display resolution based on the magnitude of the total load value calculated by the load value calculation unit 77. For example, when the load is small, the change in the load can be confirmed by the small resolution unit. Conversely, when the load is large, the resolution unit is also large, so that the load display is stabilized rather than the load change, and the display becomes easy to see.

  Note that when the left load total value and the right load total value are in different load value ranges, different resolution units are applied. For example, when the left load total value is 45.041 and the right load total value is 38.789, the resolution unit of 10 kg is applied to the left load total value, the left load display value is 40, and the resolution to the right load total value is obtained. A unit of 5 kg is applied and the total right load is 35. Thereby, the process in the load value display processing unit 78 is simplified, and the left load display value and the right load display value can be displayed favorably. Of course, the display resolution setting unit 81 may perform a process of matching the left and right resolution units, particularly the smaller resolution unit. For example, in the case of the above values, both the left load display value 45 and the right load display value 35 may be displayed by rounding both with a resolution unit of 5 kg based on the right load total value.

  Further, the display resolution of the total load total value may be changed using a different data map independently of the left load total value and the right load total value. For example, when the load value range is 1-20, the resolution unit is 1 kg, the load value range is 20-40, the resolution unit is 2 kg, the load value range is 40-80, the resolution unit is 5 kg, and the load value range is 80- The resolution unit can be 10 kg. Of course, the total load display value may be set using the data map of the left load total value and the right load total value. Further, the sum of the rounded values of the left load display value 40 and the right load display value 35 may be displayed as the total load display value.

  As described above, the load distribution display system 10 performs a process of reducing the display resolution as the total load value increases. As a result, in the portion where the total load value is small, the variation in the total load value can be shown well and the user U can be confirmed, and in the portion where the total load value is large, the total load value is stably indicated. The total load value can be identified. In this specification, the expression “decrease the display resolution” is used to mean that the load display value is coarser (the resolution unit is large and the display discrete width is large) with respect to the total load value. It is.

  Further, since the load distribution display system 10 can reduce the display resolution in a high load portion where the detection accuracy of the detection cell 24 is lowered, the detection error of the detection cell 24 is absorbed and the load U is used as a guide to the user U. Can be recognized. In particular, in rehabilitation in which the left and right load balance of the patient C is observed, it is sufficient that the left and right load balance can be generally recognized, and accuracy is not required. For this reason, even if the load display value is rounded, the user U can recognize the load without a sense of incongruity.

  The load distribution display system 10 is not limited to the above-described method for setting the display resolution in the load value display processing unit 78, and various methods can be used. For example, once the display resolution (resolution unit) is set, the load value display processing unit 78 may be configured to maintain the set display resolution even if the total load value falls below the load range.

  The display resolution may be set manually by the user U. For example, the load value display processing unit 78 of the terminal-side control unit 50 may display the display resolution setting screen on the display unit 54 and set the display resolution by the user U setting screen operation. In this case, the load value display processing unit 78 may be configured to set the load range and resolution unit in addition to whether or not the display mode to which the display resolution is applied is performed. Thereby, the load total value can be changed to the load display value by setting the display resolution reflecting the instruction of the user U. Furthermore, the load distribution display system 10 can freely design a method for setting the display display resolution, and several modifications of the load value display processing unit 78 will be described below.

[First Modification]
The load value display processing unit 90 according to the first modification is configured to change the display resolution when the change in the total load value (value vibration width or vibration frequency) is large. In this case, it is preferable that the load value display processing unit 90 sets the display resolution by determining that the total load value fluctuates a certain number of times within the set time. The display resolution (resolution unit) may be set according to the vibration width of the total load value.

  For example, the load value display processing unit 90 applies the load to the measuring device 12 and the time has elapsed (or the amount of increase in the load is reduced), and the total load value sent from the load value calculation unit 77 is 1 second. If it fluctuates five times or more, processing to lower the display resolution is performed. For example, if the fluctuation range of the load total value for 1 second is in the range of 32 kg to 34 kg, the intermediate value is set to 33 kg and the resolution unit of 2 kg is applied. That is, the load value display processing unit 78 displays 33 as the load display value on the load total value image unit 64 and continues to display this 33 until the load total value falls outside the range of 32 kg to 34 kg.

  If the total load value fluctuates more than 5 times per second in the range from 32 kg to 34 kg to 36 kg to 38 kg depending on how the user U applies the load, the load display value is set to 37 kg in 2 kg resolution unit. It is good to offset. For example, when the fluctuation range of the load total value is 31 kg to 35 kg, the load value display processing unit 90 applies the resolution unit of 5 kg even if the load display value is 33 kg.

  In short, the load value display processing unit 90 is configured to decrease the display resolution as the load total value fluctuates. As a result, the load value display processing unit 90 can round the load total value and roughen the load display value based on the vibration of the load total value, so that the display can be stabilized more reliably and the load display value can be displayed by the user. U can be confirmed even better.

[Second Modification]
The load value display processing unit 92 according to the second modification is configured to change the display resolution in accordance with the area of pressure (foot pressure) applied from the user U. Specifically, a process for lowering the display resolution is performed as the number of detection cells 24 whose load value indicates a value equal to or greater than a predetermined threshold increases.

  For example, in the load distribution image portion 62 shown in FIG. 4, when there is almost no red or orange portion in the displayed load distribution state, 1 kg is set as the resolution unit. As the red and orange portions of the load distribution state increase, the resolution unit is gradually increased to 2 kg, 5 kg, and 10 kg, that is, the display resolution is lowered.

  Here, because of the structure of the detection cell 24, the load from the user U becomes large, and if a predetermined load is exceeded, a detection error tends to occur. For this reason, if there are many detection cells 24 whose load is equal to or greater than a threshold value (a pre-measured high load value) (when there are many red portions on the load distribution screen), the error increases. Therefore, the load value display processing unit 92 can display a load display value that sufficiently includes an error amount of a large number of detection cells 24 by lowering the display resolution as the number of detection cells 24 equal to or greater than the threshold value increases. it can.

[Third Modification]
The load value display processing unit 94 according to the third modification is configured to change the display resolution in accordance with the characteristics of the detection cell 24 of the measuring device 12. That is, as shown by the solid line in FIG. 7, in the load distribution measurement, the load received from the measurement target (the sole C1) is theoretically proportional to the total load value calculated by the load value calculation unit 77. However, in actuality, it is measured with an actual measurement value separated from a theoretical value as indicated by a one-dot chain line in FIG. 7, for example, due to the characteristics of the detection cell 24 of the measurement device 12. In FIG. 7, when the load received from the measurement target is 30 kg, the total load value is also calculated as 30 kg, and the actual measurement value is less than or exceeds the theoretical value at other loads. It should be noted that the actual measurement values shown in FIG. 7 are merely examples, and it is a matter of course that the actual measurement values draw various curves depending on the configuration of the measurement device 12 and the like.

  The load value display processing unit 94 includes a data map (not shown) corresponding to the deviation amount between the theoretical value and the actual measurement value in advance, and sets the display resolution based on this data map. Thereby, the deviation of the actual measurement value can be rounded off and displayed so as to approximate the theoretical value. Specifically, as shown in FIG. 7, in the case of a small deviation amount A, a display resolution of 1 kg or 2 kg of resolution unit is set. In the case of a large deviation amount B as shown in FIG. 7, a display resolution of 5 kg or 10 kg is set as the resolution unit. As described above, by reducing the display resolution as the deviation amount between the theoretical value and the actual measurement value increases, a display including an error in actual measurement of the pressure detection unit 22 can be achieved. As a result, the user U feels that the load increases or decreases in proportion, and can recognize the load display value without a sense of incongruity.

  As described above, according to the load distribution display system 10 according to the present embodiment, since the load value display processing units 78, 90, 92, and 94 are included, the calculated total load value is rounded to obtain a rough load display value. The load applied from the user U can be easily recognized by the user U. That is, the load distribution display system 10 displays the load display value that is roughly rounded even if the calculated total load value repeatedly fluctuates, thereby suppressing the load display value from fluctuating easily in a short time. Stable display. Thereby, the load display value can be easily identified for the user U. That is, the load distribution display system 10 can further improve usability and can be used more effectively in, for example, rehabilitation.

  In this case, by reducing the display resolution of the calculated left load total value and right load total value, the user U can recognize the load balance between the left and right feet. Moreover, since the load distribution display system 10 includes the load ratio display processing unit 79, the load ratio of both the left and right feet is displayed together with the left load total value and the right load total value, so that the usability can be further improved. Further, the load distribution display system 10 can appropriately display the load display value by automatically setting the display resolution and omitting the user's setting operation.

  In the above description, the present invention has been described with reference to preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. Yes. For example, the load distribution display system 10 may be configured not only by the measurement device 12 and the terminal device 14 but also as a device in which the measurement function and the display function are integrated.

  The load distribution display system 10 may be configured to display a rough load ratio display (load ratio display value, load ratio bar graph) by rounding the load ratio. For example, as shown by the dotted line in FIG. 5, the load ratio display processing unit 79 receives the left load display value and the right load display value rounded by the left load display setting unit 82 and the right load display setting unit 83, and loads You may perform the process which reduces and displays the display resolution of ratio.

  Further, for example, the load ratio may be calculated from the rounded left load display value and the right load display value, and the load ratio may be further rounded and displayed. Thereby, since it is possible to display the load total value and the load ratio with a good resolution, it is easy for the user to confirm the load display value and the load ratio display.

  Alternatively, the load ratio display processing unit 79 may round the calculated load ratio based on the display resolution of the display resolution setting unit 81 and the left load total value and right load total value calculated by the load value calculation unit 77. Good. That is, the ratio (1%, 2%, 5%, 10%) can be changed according to the resolution unit (1 kg, 2 kg, 5 kg, 10 kg) of the display resolution setting unit 81. Thereby, since the load ratio of the left and right foot pressures can be displayed with a good resolution, the user can easily confirm the load ratio. Further, the load ratio display processing unit 79 may have a display resolution setting unit (not shown), and the display resolution may be lowered independently. As a method for reducing the display resolution of the load ratio display, the above-described method for reducing the load display value can be applied.

  Thus, the load distribution display system 10 can stably display the load ratio in conjunction with the load display value by lowering the display resolution of the load ratio display. Therefore, the user U can recognize the left and right load balance more easily.

DESCRIPTION OF SYMBOLS 10 ... Load distribution display system 12 ... Measuring apparatus 14 ... Terminal device 22 ... Pressure detection part 24 ... Detection cell 36 ... Measurement side control part 50 ... Terminal side control part 54 ... Display part 77 ... Load value calculation part 78, 90, 92 94 ... Load value display processing unit 79 ... Load ratio display processing unit 81 ... Display resolution setting unit d ... Load data Df ... Load distribution data U ... User

Claims (9)

A load distribution display system that measures a load distribution of a measurement target by a pressure detection unit in which a plurality of detection cells are arranged, and displays the measurement result on a display unit,
Load value calculating means for calculating a load value based on load information for each of the plurality of detection cells;
One of the display resolutions prepared for adjustment is automatically set, and the load value is rounded based on the load value calculated by the load value calculation means and the set display resolution. It possesses a load value display processing means for the load display value, and
The load value display processing means lowers the display resolution as the number of the detection cells in which the load information shows a value equal to or greater than a threshold value increases . A load distribution display system that measures a load distribution of a measurement target by a pressure detection unit in which a plurality of detection cells are arranged, and displays the measurement result on a display unit,
Load value calculating means for calculating a load value based on load information for each of the plurality of detection cells;
One of the display resolutions prepared for adjustment is automatically set, and the load value is rounded based on the load value calculated by the load value calculation means and the set display resolution. Load value display processing means to be a load display value,
The load value display processing means lowers the display resolution as the amount of deviation between the theoretical value of the load applied from the measurement object and the actual value detected by the pressure detection unit from the measurement object increases.
A load distribution display system characterized by that. In the load distribution display system according to claim 1 or 2 ,
The pressure detector measures body pressure received from left and right body parts of the subject to be measured,
The load value calculation means calculates a left load total value and a right load total value, which are the load values of left and right body pressures, based on a plurality of load information measured by the plurality of detection cells,
The load value display processing means rounds the left load total value and the right load total value. In the load distribution display system according to claim 3 ,
Load ratio display processing means for calculating a load ratio between the left and right body pressures based on the left load total value and the right load total value calculated by the load value calculation means and displaying the load ratio display as it is on the display unit. A load distribution display system characterized by comprising: In the load distribution display system according to claim 3 ,
Load ratio display processing means for calculating a load ratio of the left and right body pressures based on the left load total value and the right load total value rounded by the load value display processing means, and displaying the load ratio display on the display unit. A load distribution display system characterized by comprising: A load distribution display method for measuring a load distribution of a measurement object by a pressure detection unit in which a plurality of detection cells are arranged, and displaying the measurement result on a display unit,
The load value calculating means calculates a load value based on the load information for each of the plurality of detection cells,
The load value display processing means automatically sets one of display resolutions that can be adjusted, and based on the load value calculated by the load value calculation means and the set display resolution, A load distribution display method, wherein the load resolution is rounded to obtain a coarse load display value, and the display resolution is lowered as the number of the detection cells whose load information indicates a value equal to or greater than a threshold value increases . A load distribution display method for measuring a load distribution of a measurement object by a pressure detection unit in which a plurality of detection cells are arranged, and displaying the measurement result on a display unit,
The load value calculating means calculates a load value based on the load information for each of the plurality of detection cells,
The load value display processing means automatically sets one of display resolutions that can be adjusted, and based on the load value calculated by the load value calculation means and the set display resolution, The load value is rounded to obtain a coarse load display value, and the display resolution is lowered as the amount of deviation between the theoretical value of the load applied from the measurement target and the actual measurement value detected from the measurement target by the pressure detection unit increases.
A load distribution display method characterized by that. A load distribution display program executed by a computer capable of displaying a measurement result of a load distribution of a measurement object measured by a pressure detection unit in which a plurality of detection cells are arranged on a display unit,
The computer,
Load value calculating means for calculating a load value based on the load information for each of the plurality of detection cells;
One of the display resolutions prepared for adjustment is automatically set, and the load value is rounded based on the load value calculated by the load value calculation means and the set display resolution. a load display value, the load value display processing means for Ru lowering the display resolution according to the number of the detection cells the load information indicates a value greater than the threshold value is increased,
Load distribution display program to function as. A load distribution display program executed by a computer capable of displaying a measurement result of a load distribution of a measurement object measured by a pressure detection unit in which a plurality of detection cells are arranged on a display unit,
The computer,
Load value calculating means for calculating a load value based on the load information for each of the plurality of detection cells;
One of the display resolutions prepared for adjustment is automatically set, and the load value is rounded based on the load value calculated by the load value calculation means and the set display resolution. Load value display processing means for reducing the display resolution as the load display value increases as the amount of deviation between the theoretical value of the load applied from the measurement object and the actual value detected by the pressure detection unit from the measurement object increases.
Load distribution display program to function as.

Images