WO2019047449A1

WO2019047449A1 - Force-sensing insole

Info

Publication number: WO2019047449A1
Application number: PCT/CN2018/000312
Authority: WO
Inventors: 郑庆生
Original assignee: 郑庆生
Priority date: 2017-09-06
Filing date: 2018-09-05
Publication date: 2019-03-14
Also published as: CN109947308A

Abstract

Provided is a force sensing insole that relates to the fields of daily necessities and medical kinematics, and in particular to gait analysis device hardware. Each insole is configured with two or more force-sensing devices. The force-sensing devices are respectively disposed at a rear end (1) portion and a forefoot (5) portion of the insole. Each force-sensing device has at least one touchscreen, and protruding structures are densely disposed inside the touchscreen.

Description

Force measuring insole

The invention relates to a force measuring insole, in particular to a force measuring hardware part of a force measuring insole, and can also be applied to a force measurement outside the shoe, such as a force measuring plate or other flexible flat force measuring device.

The existing force-measing insoles are mostly point-measuring forces, that is, working with multiple force-measuring points at the same time, mainly the pressure distribution of the force-receiving sole. The accuracy of dynamic data is limited, and the cost is high and the life is low, which is difficult to produce practical application value. The force point density is typically 4 force points per square centimeter, which does not reflect the motion characteristics of the foot.

For the convenience of description, the insole is divided into seven parallel sections according to the degree of weight bearing. The proportions of the names of the sections from front to back and the length of the front and rear of the soles are the front and back total length: 12%; , 12%; forefoot, 16%; palm, 10%; waist, 25%; hind paw, 13% and back, 12%. The inner side is distinguished by the position where the thumb portion is located, and the position where the fifth finger is located.

The seven-segment division of the sole can also be used in this way: the front end and the last end of the insole of the shoe are connected, and are vertically divided into seven parallel segments according to the aforementioned ratio. If there are no two points at the end of the front end, such as a line or two points, the middle point of the line or the middle point of the line connecting the two points is the front end of the front end. The inner and outer divisions are as described above.

The invention focuses on the dynamic change of the strength of the sole, increases the precision, reduces the cost, and prolongs the life. Specifically, the structure and technology of the resistive touch screen (hereinafter also referred to as a resistive screen or a resistive touch screen) are changed to form a new force measuring device, which is applied to the force measuring insole, mainly for measuring the foot. The trajectory of the bottom force point, thus collecting data, performing human gait analysis, focusing more on dynamic and human motion characteristics, contributing to the study of human motion laws, and rehabilitation medical research. From the perspective of gait analysis, the dynamic change of the force of the sole is more practical than static.

Resistive touch screen technology is a widely used open technology. A resistive touch screen is a sensor that converts the physical position of a touch point (X, Y) in a rectangular area into a voltage representing an X coordinate and a Y coordinate. Many LCD modules use a resistive touch screen that can use four, five, seven, or eight lines to generate the screen bias voltage while reading back the voltage at the touch point.

Component introduction. Resistive touch screen is a kind of sensor, which is basically a film plus glass structure. The adjacent side of the film and glass is coated with ITO (nano-indium tin oxide) coating. ITO has good conductivity and transparency. Sex. When touched, the ITO under the film will contact the ITO on the upper layer of the glass, and the corresponding electrical signal will be transmitted through the inductor, sent to the processor through the conversion circuit, and converted into X and Y values on the screen by calculation, and the point is completed. The selected action is presented on the screen.

working principle. The working principle of the resistive touch screen is mainly to realize the operation and control of the screen content through the principle of pressure sensing. The touch screen body part is a multi-layer composite film which is very compatible with the surface of the display, wherein the first layer is glass or plexiglass. The bottom layer, the second layer is a spacer layer, also called a spacer layer, which has many small transparent isolation points, which are also isolated and spaced, which are insulating elastic materials, the third layer is a multi-resin surface layer, and the surface is also coated with a layer. The transparent conductive layer is covered with a hardened, smooth and scratch-resistant plastic layer. The conductive layer and the glass layer sensor on the surface of the multi-powder surface layer are separated by a plurality of tiny compartments, and the current is passed through the surface layer. When the light-touch gauge is laminated, the bottom layer is contacted, and the controller simultaneously reads the symmetrical current from the four corners. Calculate the distance of the finger position. The touch screen utilizes two layers of highly transparent conductive layers to form a touch screen with a small distance between the two layers. When the finger touches the screen, the two conductive layers that are normally insulated from each other have a contact at the touch point position, because one conductive layer turns on the 5V uniform voltage field in the Y-axis direction, so that the voltage of the detection layer changes from zero to zero. Non-zero, after the controller detects this turn-on, it performs A/D conversion, and compares the obtained voltage value with 5V to obtain the Y-axis coordinate of the touch point. Similarly, the coordinates of the X-axis are obtained. It is the most basic principle common to all resistance technology touch screens.

The touch screen includes two transparent layers stacked on top of each other. The four-wire and eight-line touch screens are composed of two transparent resistive materials having the same surface resistance. The five-wire and seven-wire touch screens are composed of a resistive layer and a conductive layer, usually Use an elastic material to separate the two layers. When the pressure on the surface of the touch screen (such as pressing through a pen tip or finger) is large enough, contact is made between the top layer and the bottom layer. All resistive touch screens use a voltage divider principle to generate voltages that represent the X and Y coordinates. The voltage divider is implemented by connecting two resistors in series. The upper resistor (R1) is connected to the positive reference voltage (VREF) and the lower resistor (R2) is connected to ground. The voltage measurement at the junction of the two resistors is proportional to the resistance of the resistor below.

In order to measure a coordinate in a particular direction on a resistive touch screen, a resistive layer needs to be biased: one side of it is connected to VREF and the other side is grounded. Also, connect the unbiased layer to the high impedance input of an ADC. When the pressure on the touch screen is large enough to make contact between the two layers, the resistive surface is divided into two resistors. Their resistance is proportional to the distance from the touch point to the offset edge. The resistance between the touch point and the ground side is equivalent to the one below the voltage divider. Therefore, the voltage measured on the unbiased layer is proportional to the distance from the touch point to the ground side.

Component classification. Four-wire touch screen

The four-wire touch screen contains two resistive layers. One of the layers has a vertical bus on the left and right edges of the screen, and the other layer has a horizontal bus at the bottom and top of the screen. To make measurements in the X-axis direction, the left bus is biased to 0V and the right bus is biased to VREF. Connect the top or bottom bus to the ADC and make a measurement when the top and bottom layers are in contact.

To make measurements in the Y-axis direction, the top bus is biased to VREF and the bottom bus is biased to 0V. The ADC input is terminated to the left or right bus, and the voltage is measured when the top layer is in contact with the bottom layer. A simplified model of a four-wire touch screen when two layers are in contact. For a four-wire touch screen, the ideal connection method is to connect the bus biased to VREF to the positive reference input of the ADC and the bus set to 0V to the negative reference input of the ADC.

Five-wire touch screen. The five-wire touch screen uses a resistive layer and a conductive layer. The conductive layer has a contact, usually at the edge of one side. There is one contact at each of the four corners of the resistive layer. To measure in the X-axis direction, the upper left and lower left corners are biased to VREF, and the upper right and lower right corners are grounded. Since the left and right corners are the same voltage, the effect is similar to that of the bus connected to the left and right sides, similar to the method used in the four-wire touch screen. To measure along the Y-axis, the upper left and upper right corners are offset to VREF, and the lower left and lower right corners are offset to 0V. Since the upper and lower corners are respectively the same voltage, the effect is substantially the same as the bus connecting the top and bottom edges, similar to the method used in the four-wire touch screen. The advantage of this measurement algorithm is that it keeps the voltages in the upper left and lower right corners constant; but if grid coordinates are used, the X and Y axes need to be reversed. For a five-wire touch screen, the best way to connect is to connect the upper left corner (offset to VREF) to the positive reference input of the ADC and the lower left corner (offset to 0V) to the negative reference input of the ADC.

Seven-line touch screen. The seven-line touch screen is implemented in the same way as the five-line touch screen except that one line is added to the upper left and lower right corners. When performing a screen measurement, connect one line in the upper left corner to VREF and the other line to the positive reference end of the SAR ADC. At the same time, one line in the lower right corner is connected to 0V, and the other line is connected to the negative reference end of the SAR ADC. The conductive layer is still used to measure the voltage of the voltage divider.

Eight-line touch screen. In addition to adding one line to each bus, the eight-wire touch screen is implemented in the same way as a four-wire touch screen. For the VREF bus, one line is used to connect VREF and the other line is used as the positive reference input for the DAC ADC's digital-to-analog converter. For the 0V bus, one line is used to connect 0V and the other line is used as the negative reference input for the DAC ADC's digital-to-analog converter. Any of the four wires on the unbiased layer can be used to measure the voltage of the voltage divider.

SAR structure. There are many ways to implement SAR, but its basic structure is very simple. This structure saves the analog input voltage (VIN) in a track/holder, and the N-bit register is set to an intermediate value (ie, 100...0 with the most significant bit set to 1) to perform a binary lookup algorithm. Therefore, the output of the digital-to-analog converter (DAC) (VDAC) is one-half of VREF, where VREF is the reference voltage of the ADC. After that, perform a comparison to determine if VIN is less than or greater than VDAC:

1. If VIN is less than VDAC, the comparator output is logic low and the most significant bit of the N-bit register is cleared.

2. If VIN is greater than VDAC, the comparator output is logic high (or 1) and the most significant bit of the N-bit register is held at 1.

Thereafter, the control logic of the SAR moves to the next bit, and the bit is forced high, and the next comparison is performed. The SAR control logic will repeat the above sequence operation until the last bit. When the conversion is complete, an N-bit data word is obtained in the register.

An example of a 4-bit conversion process is shown, with the Y-axis and the thick line representing the output voltage of the DAC. In this example:

1. In the first comparison, VIN is shown to be less than VDAC, so bit [3] is set to zero. The DAC is then set to 0b0100 and a second comparison is performed.

2. In the second comparison, VIN is shown to be greater than VDAC, so bit [2] remains at 1. Subsequently, the DAC is set to 0b0110 and a third comparison is performed.

3. In the third comparison, bit [1] is set to zero. The DAC is then set to 0b0101 and the last comparison is performed.

4. In the last comparison, bit VIN is greater than VDAC and bit [0] remains at 1.

Contact inspection. All touch screens can detect if a touch has occurred by pulling one of the layers with a weak pull-up resistor and pulling the other layer with a strong pull-down resistor. If the measured voltage of the pull-up layer is greater than a certain logic threshold, it indicates that there is no touch, and vice versa. The problem with this approach is that the touch screen is a huge capacitor and it may be necessary to increase the capacitance of the touch screen leads in order to filter out the noise introduced by the LCD. A weak pull-up resistor connected to a large capacitor can lengthen the rise time and may result in the detection of a false touch.

Four- and eight-wire touch screens can measure contact resistance, RTOUCH. RTOUCH is approximately proportional to the touch pressure. To measure the touch pressure, you need to know the resistance of one or two layers in the touch screen. The formula gives the calculation method. It should be noted that if the measured value of Z1 is close to or equal to 0 (when the touch point is close to the grounded X bus during the measurement process), some problems will occur in the calculation, which can be effectively improved by using the weak pull-up method.

Advantages and disadvantages. The advantage of the resistive touch screen is that its screen and control system are relatively cheap, the response sensitivity is very good, and whether it is a four-wire resistive touch screen or a five-wire resistive touch screen, they are a completely isolated working environment, not afraid of dust and Water vapor can adapt to all kinds of harsh environments. It can be touched with any object and has better stability. The disadvantage is that the outer film of the resistive touch screen is easily scratched and the touch screen is not available, and the multilayer structure causes a large loss of light. For handheld devices, it is often necessary to increase the backlight to compensate for the problem of poor light transmission, but this also Will increase battery consumption.

The advantages of resistive touch screens can be categorized as:

1. Resistive touch screen has high precision and can reach the level of pixel. The maximum resolution is up to 4096x4096.

2. The screen is not affected by dust, moisture and oil, and can be used in lower or higher temperature environments.

3. Resistive touch screen uses pressure sensing to facilitate the identification of force.

4. Resistive touch screens are relatively inexpensive due to proven technology and low barriers.

The disadvantages of resistive touch screens can be categorized as:

1. Resistive touch screen can be designed as multi-touch, but when two points are pressed at the same time, the pressure of the screen becomes unbalanced, resulting in errors in touch, so the realization of multi-touch is difficult.

2. The resistive touch screen is relatively easy to damage the touch of the screen due to scratches and the like.

As a prior art and a mature technology, the resistive touch screen has been fully disclosed, and the description is not repeated.

In the resistive screen of the present invention, the driving mode may also be referred to as a digital switch mode. Resistive screens are also divided into two categories, one is the traditional 4/5/8-line resistive screen, which determines the X and Y coordinates by detecting the output voltage generated by the ITO resistor divider at the contact point. Position, this kind of resistance screen can not achieve multi-touch, because the resistance division caused by multiple contacts is very complicated, so that the contact position and the output voltage can not form a uniform law, so it can not be determined.

Another type of resistive screen driving mode is called digital switch mode. It uses two layers of ITO as the horizontal sensing line and the vertical driving line. The contact between the driving line and the sensing line is equivalent to a switch. When they are not in contact, they are insulated from each other, and after the contact occurs, a short circuit occurs between them, which is equivalent to the switch closing. When driving, the sensing line usually applies a high level by a pull-up resistor, and at the same time, a negative pulse voltage is applied to each column at a certain frequency on the driving line, so that when scanning the column where the contact is located, due to the touch The point switch is closed to form a DC path such that the voltage at the line of the contact is pulled low to form a negative pulse, thus detecting the position of the contact. Since the driving line is sequentially scanned, the position of a plurality of contacts can be detected.

However, when multiple contacts are present at the same time, in some cases, a misjudgment may occur, which is also called "aliase". As shown in the figure below, among the three contacts, where the contact 1 and the contact 2 are in the same row, the contact 2 and the contact 3 are in the same column, when scanning C0, the voltage of R1 is pulled down due to the presence of the contact 1, However, since the switch of the contact 2 is also closed, a short circuit between C0 and C5 is caused, so that the voltage of C5 is also pulled low, even if C5 is not scanned at this time; at the same time, the contact in the same column as the contact 3 Short-circuiting R5 and C5 also causes the R5 voltage to be pulled low, so that the circuit detects two contacts in the interval of scanning C0, and the contacts of C0-R5 are actually non-existent, that is, pseudo-points. The method of eliminating or reducing the generation of pseudo-points is mainly to improve the reaction speed of reading the sensing line voltage. Since there is ITO resistance between the contacts, the signal transmission takes a certain time, for example, after the R1 voltage in the above example is pulled down, Will not immediately cause the C5 voltage to drop to 0, but to pass a certain RC delay, the same, the role between C5 to R5 also takes some time, then if you can grab the cycle before the R5 begins to fall on the sensing line The sampling, pseudo-points will not happen.

Therefore, increasing the clock frequency obviously reduces the probability of occurrence of pseudo-points, and can increase the frequency by 10 to 100 times. From 100KHz to >5MHz, the pseudo-point can be basically eliminated, but the frequency is too fast and the contact sensing occurs on the upper right side of the panel. No, because the upper right contact has the largest resistance to the driving line input and the sensing line output, and the transmission delay is also the largest. At this time, the scanning frequency is too fast, causing a "drop point", so this becomes a trade-off problem.

The solution is also very simple, adding signals SFT and SEN that control the timing of the driving line and the sensing line respectively. When the delay of SEN and SFT is reduced, the pseudo-point can be eliminated. When the delay of SEN SFT is increased, the missing point can be avoided. The method can be adjusted to reduce the delay when scanning the driving line on the left side of the screen, and increase the delay when scanning to the right side, so that the best of both worlds. More detailed instructions can be found here.

Companies currently working on resistive multi-touch solutions in addition to atmel, as well as Stantum, Touchco, Samsung, etc., the low cost is its biggest advantage.

The resistive touch screen referred to in the present invention also refers to a resistive touch screen structure, which may be a direct use of a resistive touch screen, or may be changed and improved in its structure. The resistive touch screen is also referred to as a resistive screen.

A force measuring insole characterized in that each insole is equipped with a force measuring device, the force measuring device has a resistive touch screen structure, and the resistive touch screen structure (the resistive touch screen structure in this patent document is also referred to as a resistive screen or a touch screen) may be four Line five-line seven-line eight-line or digital switch mode.

The invention firstly is a simple application of the resistive touch screen technology, and the resistive screen can be adjusted according to the needs of materials and parameters. For example, since it is only for the force measurement function, it does not need to be used with the display screen like a mobile phone and a tablet computer, so the material does not consider the light transmission property, and the spacer object of the spacer layer does not consider the light transmission property, however, in order to maintain the existing The consistency of the technical principle is convenient for explanation, and the title of the resistive screen, the electronic touch screen or the resistive touch screen is still maintained in the specification of the present invention. For example, because the force applied by the foot is greater than the finger, it is necessary to increase the hardness of the upper layer or the lower layer or select other materials, and the height of the partition layer can also be increased to meet the needs of the foot force measurement. The first layer was originally a glass or plexiglass bottom layer and could be changed to a soft material. In the present invention, the resistive touch screen is also referred to as a resistive touch screen, or simply as a resistive screen. In general, the change in the force of the sole is mainly reflected in the three parts, namely the heel, the medial forefoot and the forefoot. The corresponding force insole positions are: the posterior, the medial forefoot and the forefoot. The inner side is distinguished by the position where the thumb portion is located, and the position where the fifth finger is located.

The force measuring insole of the present invention has a force measuring device having a resistive screen structure. It can be a four-wire, five-wire, six-wire, seven-wire, eight-wire resistive screen structure. This is a combination of resistance screens. It can stack up and down different resistance screens to collect different levels of force. The more resistance screens, the wider the range of force. Can distinguish between ordinary walking, and a variety of forces to run and jump. The specific identification is completed by software. For example, when the normal walking, the sensitive screen data of high sensitivity can be used by itself, and the resistive screen with low sensitivity will not respond. When running and jumping, the resistive screen with low sensitivity will react, and the low sensitivity will also respond, and feedback of the stress level can be obtained.

The identification of forces of various sizes is achieved by varying the height of the resistive touch screen barrier. The adjustment of the sensitivity can also be achieved by changing the hardness of the underlying material of the surface of the resistive screen and the height of the spacer. It is also an option to change the hardness of the spacer of the spacer. After all, the spacer formed by the support of the spacer is formed.

The force-bearing insole of the present invention has a resistive screen compartment having a height greater than 5 microns, 10 microns, 20 microns, 100 microns, 300 microns, 600 microns or 1200 microns. Because the strength of the foot is large, the height of the compartment is lower than 4 micrometers, and it is easy to form a long electrical triggering state, and the sense of force is lost, and the trigger signal is also filtered by software. The method of increasing the height of the partition is simple, and it is sufficient to increase the height of the spacer.

The force measuring insole of the present invention has a force measuring device, and the distance between the spaced objects of the lower layer resistive screen spacer layer is larger than the upper layer. That is, the density of the lower layer resistive screen spacer layer is smaller than the upper layer, and is mainly for the intermediate force receiving portion. Thus, the lower layer of the resistive screen can be sensitive, because the lower layer of the upper resistive screen is generally harder, and the density of the spaced objects is large, which is not conducive to force triggering.

The force measuring insole of the present invention has a force measuring device, and the distance between the spaced objects of the spacer layer in the middle portion of the lower layer resistive screen is larger than that of the upper layer. Because the middle part is the main area of force measurement.

In the force-relief insole of the present invention, there is a resistive screen which is entirely recessed. The common resistive screen is flat. The recessed design of the present invention, the resistive screen is entirely recessed downward, is suitable for the shape of the foot bone, improves the precision, conforms to the shape similar to the bone surface, and can also avoid the folding of the foot movement. Bending causes damage to the product, which helps to extend the life of the product. Other touch screens may also be in an overall recessed state.

A force measuring insole is characterized in that: each insole is installed with a touch screen structure, and the touch screen structure can be a resistive screen structure, a surface acoustic wave screen structure, an electromagnetic screen structure, a capacitive screen structure, and a nano touch film structure. The touch screen structure has insulated elastic isolation points and adjacent raised structures.

In the force measuring insole of the present invention, the force measuring device has a resistive screen structure, and the bottom layer and/or the surface layer has a convex structure with a spacing layer, which is staggered with the elastic isolation points of the resistive screen. Simply put, the third layer and/or the first layer adds a raised structure to the second layer. The height of the raised structure is greater than 1 micron, 2 micron, 5 micron, 30 micron, 80 micron, 150 micron. Because the sole has a thick soft fat pad, the bottom surface of the foot bone is not sharp, especially the heel bone is a curved bottom surface. The triggering force on the resistive screen will be relatively small, and even the data cannot be collected, just like handwriting. In the case of no reaction, it is more accurate to trigger with nails and stylus. Such a convex structure design is advantageous for triggering, especially in a resistive screen having a large interlayer height, which is equivalent to transferring the function of the resistive screen stylus to the inside, and the convex structure is equivalent to adding a special contact inside, convex The structure is also referred to as a bump, a bump, and a raised point. The height of the raised structure increases, the sensitivity of the resistive screen structure can be increased, and the direction of force and the speed of motion can be amplified, and the direction of motion of the force is fully expressed, and the measurement accuracy is further increased, which is suitable for slow motion measurement and is convenient for comprehensive judgment. . The greater the height of the raised structure, the more sensitive the display of the force, adding a force measurement method. The increase of the raised structure is sufficient to achieve the prior art, which can be larger than the isolation point of the isolation layer, the precision of the manufacturing is required to be lower than the isolation point, and the translucency of the material need not be considered. The bump point and the substrate layer connected thereto are plated with a conductive layer, and the conductive layer of the film can be sprayed and laminated.

The density of the raised structures is greater than 10, 20, 30, 100, 500, 1000, 3000, 5000 per square centimeter. The higher the density, the higher the accuracy. They are suitable for early rehabilitation, mid-term rehabilitation, post-rehabilitation, daily life, daily fitness, regular exercise, sexual training, and competitive training.

The convex structure may be a cylindrical, conical, conical trigger point, and the magnitude of the force may be determined by the size of the contact surface.

In the above-mentioned convex structure, a part of the top surface is an insulating material, and the state of the triggering is maintained after the force is applied, so that the trigger density can be adjusted to avoid the judgment error of the trigger point being too dense, and the mechanical effect after the pressure is not affected. Such a convex structure accounts for more than ten percent, twenty or more, thirty or more, and forty percent of the total number of convex structures.

The force-relief insole of the present invention has a convex structure on the bottom layer or the surface layer of the resistive screen, and the convex structure has a hardness of less than Shore 90 (HA) or Rubber International Hardness 90 (IRHD). The smaller the hardness of the convex portion, the smaller the wear during the touch, which is beneficial to prolong the service life, and can also better display the touch area, thereby judging the magnitude and direction of the force. The implementation manner may be that a convex structure is made of a rubber material, and a conductive material is added to the surface of the rubber material.

In the force-applying insole of the present invention, the force measuring device has a resistive screen structure, and the bottom layer or the surface layer has a convex structure with a spacing layer, the convex structure may be a conductive rubber, or a conductive layer may be superposed on the convex portion. The conductive rubber may be silver plated glass, silver plated with silver, silver, gold or other conductive particles distributed in the silicone rubber, and the conductive particles are contacted by pressure to achieve good electrical conductivity. It has a convex contact function, and it can also measure the strength according to the density of the conductive particles as a different arrangement of conductivity. With conductive rubber, it can also protect the conductive layer or the resistive layer of the opposite layer, avoiding the abrasion and deformation caused by the hard friction, and prolonging the life of the product.

The force measuring insole of the present invention has a convex structure on the bottom layer or the surface layer of the resistive screen, and the height thereof has a portion or a layer larger than 15%, 30%, 45%, 60%, 75% of the height of the spacer layer. 90%, this design can be adjusted according to different purposes, the height of the raised structure is larger, the easier it is to trigger, and the more sensitive it can be applied to the mechanical test of walking walk; the lower the height, the less likely it is to trigger. It is suitable for strenuous sports such as sprinting, middle running sports, ball sports, intensive exercises, general fitness, and daily life.

In the force-relief insole of the present invention, the bottom layer or the surface layer of the resistive screen may have a convex structure in the opposite direction to the spacer layer, that is, a protrusion to the outside of the spacer layer, so that when pressed, the convex point portion can generate a larger Power, forming a trigger, has the same effect as a writing pen, and has greater value in a particular part. These raised points have more than ten adjacent points where the spacing is evenly distributed. The upper part of these raised points can also be added with a layer of plate, which is equivalent to the package, to avoid the entry of debris, resulting in false alarms.

The force measuring insole of the present invention, the spacer object of the resistive screen spacer layer, may be a conductive rubber. The spacer is insulated from the adjacent two layers of electrical conductors, so that the spaced objects can also be connected to the circuit to become a force measuring point, and the denser the spaced objects, the higher the measurement accuracy. This can also be a new way of application.

The force measuring insole of the present invention has four or more force measuring devices mounted on each insole. An added force measuring device, placed on the inside of the palm of the hand, is used to measure the force of the thumb, which is important for sports shoes.

The force measuring insole of the present invention can have a multi-layered superposition design. The height of the spacer layer of the lower resistive screen is greater than the upper layer. This design facilitates layered force measurement.

The force measuring insole of the present invention, the spacer object of the spacer of the resistive screen, is a conductive rubber. Such a spaced object can also be connected to the circuit to become a force measuring point, and the denser the spacing object, the higher the measurement accuracy. This can also be a new way of application.

The force measuring insole of the present invention can be mounted with a semiconductor pressure sensor, a piezoelectric crystal, a piezoelectric ceramic, a piezoelectric polymer, a piezoelectric rubber, and a composite piezoelectric material in a barrier layer of a resistive screen. The function is the same as above, and the above materials can also be used in the elastic spacer and/or the convex structure, and connected to the chip and the analysis device through independent wires to form a multi-mechanical combined force measurement mode, as long as the insulation and mutual insulation with the conductive layer are performed, Avoid false triggers as much as possible.

In the force-relief insole of the present invention, the hardness of the forefoot portion and/or the rear end portion is greater than the hardness of the waist portion. The basis of the force measurement needs stability, and the forefoot is the focus of the force measurement. If the hardness of the part is not enough, the data will be distorted. However, there are few stress points and force points in the waist position, and even the force measurement point can be omitted, and the softness is better. It is avoided that the bending force of the foot is transmitted to the force measurement point due to excessive hardness in the middle during the movement, which affects the measurement accuracy. .

The force-relief insole of the present invention has a hardness of greater than Shore 90 (HA) or Rubber International Hardness 90 (IRHD) for the forefoot bottom and/or the rear end. Avoid deformation of the sole and unevenness of foreign objects or other causes of interference with the force measurement. From the quasi-determination of the force measurement, the harder the underlayer of the insole, the smaller the interference of the sole factor.

The force measuring insole of the present invention has a resistive screen whose inner pressure is higher than 1.2 atmospheres and 1.5 atmospheres. This can replace the effect of the spacers on the compartment with internal pressure, making the force measurement more continuous.

The force-relief insole of the present invention has a conductive layer or a resistive layer of a resistive screen and has a plurality of strips. That is to say, the conductive layer or the resistive layer is changed from one plane to a plurality of parallel lines, and the upper and lower layers form an interlaced structure of the warp and weft lines. Like the coordinates, the positioning can be more accurately and the circuit design can be simplified.

The force-measing insole of the present invention can also be packaged together by using two layers of conductive plates and a combined force-measuring device with an elastic insulating isolating layer (composed of elastic insulating isolation points). The elastic isolation layer composed of the elastic isolation points is between the two conductive plates, and the conductive layers are opposite. One or two of the conductive plates may be elastic, and the conductive layer of one of the conductive plates is divided by the insulator into parallel with each other. Insulated conductive strips, each of which has its own lead, and the elastic insulating isolation points can be joined together. Successfully, an insulating spacer is mounted on the insulator beside the conductive strip, so that the opposite side conductive plate is energized to form A plurality of parallel micro-switches are insulated from each other when the force is not applied. When the force is applied to a certain extent, the upper and lower communication are triggered, and each of the conductive strips corresponds to a line, the position accuracy is better, and the quantity processing is simpler. If two layers of such structures are superimposed on each other, such as the vertical overlapping of the conductive strips, the latitude and longitude lines are formed, and any position can be judged. In order to increase the sensing accuracy, it is also possible to add bump points to the conductive layer, and it is easier to form a trigger. Insulation spacers can be wrapped with PVDF material to form a piezoelectric and piezoresistive mode for simultaneous force measurement.

The force measuring insole of the present invention is provided with a force measuring device at the rear end of the insole, the inner side of the forefoot, the outer side of the forefoot, the inner side of the palm front and the outer side of the waist. These five positions have been able to monitor the normal foot movement trajectory, and the rest of the measurements are of little significance, which is meaningful from the perspective of material saving.

Since the resistive screen of the present invention does not consider translucency, the conductive layer and the resistive layer can have more options, and any existing conductive and resistive materials can be used.

The force measuring device of the force measuring insole of the invention can also be assembled by combining a plurality of resistive screens on one plane, and one more trigger point for one resistive screen, forming a multi-point triggering, and more comprehensive data can be obtained.

The bottom surface hardness of the force measuring device of the invention is greater than Shore 99 (HA) or Rubber International Hardness 90 (IRHD), Shore 14 (HD), 30 (HD), 88 (HD), 20 HRA; also can be used in the force measuring insole The lowermost layer is fitted with a hard plate with a hardness greater than Shore 90 (HA) or Rubber International Hardness 99 (IRHD), Shore 14 (HD), 30 (HD), 88 (HD), 20 HRA; The hard plate may be a glass, plastic and/or metal material or a hard synthetic material having a thickness greater than 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm or 1 mm.

The force measuring insole of the present invention has a bottom surface hardness of greater than Shore 99 (HA) or Rubber International Hardness 90 (IRHD) for mountaineering, Shore 14 (HD) for jogging, and 30 (HD) for long distance running. 88 (HD) for combat training and 20 HRA for ball sports. A hard plate can also be installed on the lowermost layer of the force-test insole, which has a hardness greater than Shore 90 (HA) or Rubber International Hardness 99 (IRHD) for mountaineering, and Shore 14 (HD) for jogging. 30 (HD) for long distance training, 88 (HD) for combat training, and 20 HRA for ball sports. At present, the measuring devices of the resistive screen type are made of soft materials, and the human body feels comfortable, but in the measurement of the plantar, it is easily interfered by the foreign matter of the sole. Therefore, the present invention uses a hard material as the bottom layer to block interference and avoid Data is distorted. The bottom surface or hard plate may be a glass, plastic and/or metal material or a hard synthetic material having a thickness greater than 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm or 1 mm, respectively adapted to different movements And different types of materials and materials, the hardness of the material must reach a certain thickness to block the interference underneath.

The solution of the invention may also be: an insulating isolation point and an area where the adjacent convex structure is located, the internal air pressure is higher than the standard atmospheric pressure, and may be 1.2 times or more, 1.5 times or more, 2 times or more, and 3 times or more of the standard atmospheric pressure.

The solution of the invention can also seal the space with the elastic isolation point and the convex structure, and the internal pressure of the space is higher than the standard atmospheric pressure, which can be 1.2 times or more, 1.5 times or more, 2 times or more, and 3 times or more of the standard atmospheric pressure. Applicable to rehabilitation shoes, fitness shoes and sports shoes, it is beneficial to avoid the fatigue of the support points, but also easy to rebound, reducing the occurrence of ghosts. At the same time, the number of isolation points can be reduced, and the central area is uniformly distributed in a matrix with less than forty isolation points. When the internal air pressure is high, the isolation point can be reduced and eliminated, the true shape and area of the contact point can be detected, and the central area data detection amount is the largest and most important, and it is beneficial to reduce the isolation point when the internal pressure is sufficient.

The solution of the invention is only for the hardware part of the force measuring insole, and the software will apply for another case.

The advantages of the present invention are compared to existing force measuring insoles. The force measurement point is more dense, and the response to the trajectory of the force point is more accurate and continuous, and has more research value and rehabilitation research value than the static force distribution. The cost is greatly reduced, which is less than one-third of the existing insole products, and it has the significance and practical value of popularization.

Compared with the existing resistive touch screen, the improved scheme is more suitable for the foot measurement, and the material selection does not need to consider the light transmission and the cost is lower than the direct application. The product life of the solution of the invention is also longer and more accurate than the existing piezoresistive force insole.

The force measuring insole of the present invention is characterized in that each insole is equipped with a force measuring device, and the force measuring device can have an infrared touch screen technology structure, which is emitted by infrared rays mounted on the outer frame of the touch screen. Formed with the receiving sensing element, an infrared detecting net is formed on the surface of the screen, and any touch object can change the infrared rays on the contact to realize the touch screen operation. The infrared touch screen is implemented in a similar way to surface acoustic wave touch, using infrared emitting and receiving sensing components. These components form an infrared detection net on the surface of the screen, and an object (such as a finger) that is touch-operated can change the infrared rays of the electric shock, and is converted into a coordinate position of the touch to achieve an operational response. In the infrared touch screen, the circuit board device arranged on the four sides of the screen has an infrared transmitting tube and an infrared receiving tube, corresponding to forming an infrared matrix intersecting horizontally and vertically. Infrared touch screen working principle: Infrared touch screen is an infrared matrix densely placed in the X and Y directions in front of the screen. It is detected by non-stop scanning whether infrared rays are blocked by objects and locate the user's touch. As shown in the figure below, this type of touch screen is equipped with an outer frame on the front of the display, and a circuit board is designed in the outer frame, so that the infrared transmitting tube and the infrared receiving tube are arranged on the four sides of the screen, and the infrared matrix which is horizontally and vertically intersected is formed one by one. After every scan, if all the infrared tubes are accessible, the green light is on, indicating that everything is normal. When there is a touch, the finger or other object will block the horizontal and vertical infrared rays passing through the position. When the touch screen scans and finds that there is an infrared light blocked, the red light is on, indicating that the infrared light is blocked, there may be a touch, and immediately change to another The coordinates are re-scanned. If another axis is found, there is also an infrared block. The yellow light is on, indicating that the touch is detected, and the position of the two infrared traps that are found to be blocked is reported to the host, and the position of the touch point on the screen is determined through calculation.

Applying to the foot force measurement, the structure can be packaged, and the upper and lower layers of the touch screen are mounted with planar objects, such as plastic plates, and the two layers of planar objects are separated by soft objects, and the same as the elastic isolation points of the resistance screen are formed. In the optical channel, when the plane is under pressure, the soft object is deformed, and the light is blocked to find the point of stress. The upper and lower plane objects can also be mounted with a raised structure, which is oriented in the direction of the elastic isolation point and interlaced with the elastic isolation points, thereby increasing the effect of the widening effect, increasing the triggering effect and increasing the sensitivity. It is also possible to enclose the light in a channel, such as a pipe. The transmitting and receiving sensing elements are installed at both ends of the pipe. These channels are arranged in a plane to achieve the function of the plane sensing pressure. The plane arrangement can also be superimposed up and down, and the vertical and vertical latitude and longitude lines are arranged to form precise coordinates.

The structure can be used in combination with the resistive screen structure. In the periphery of the resistive screen structure, the infrared technology touch screen structure is installed, and the space of the elastic isolation point inside the resistive screen is used as the optical channel, and the current resistive screen has a small thickness. Appropriate increase in thickness, you can. The upper and lower sides may also have a convex structure in the middle, which is interlaced with the elastic isolation points to increase the trigger probability.

The infrared technology touch screen structure described above, the infrared light emitting and receiving sensing original, may also be other visible and invisible light emitting and receiving sensing originals, or may be laser emitting and laser sensing originals. Other light and electromagnetic wave transmitting and receiving sensing elements are also possible.

The force measuring insole of the present invention is characterized in that each insole is equipped with a force measuring device, and the force measuring device can have a surface acoustic wave touch screen structure. Surface acoustic waves are mechanical waves that propagate along the surface of a medium. The touch screen is composed of a touch screen, a sound wave generator, a reflector and a sound wave receiver, wherein the sound wave generator can transmit a high frequency sound wave across the screen surface, and when the finger touches the screen, the sound wave on the contact is blocked, thereby Determine the coordinate position. The surface acoustic wave touch screen is not affected by environmental factors such as temperature and humidity. The resolution is extremely high, it has excellent scratch resistance, long life (50 million times without failure), and it can maintain clear and translucent image quality. Without drift, just install One time correction; there is a third axis (ie pressure axis) response, which is most suitable for use in public places. The touch screen portion of the surface acoustic wave touch screen can be a flat, spherical or cylindrical glass plate mounted in front of the plasma display screen. This glass plate is just a piece of pure tempered glass. It is different from other touch screen technologies without any film and cover. Vertical and horizontal ultrasonic transducers are fixed in the upper left and lower right corners of the glass screen, and two corresponding ultrasonic receiving transducers are fixed in the upper right corner. The four perimeters of the glass screen are engraved with a 45° angle from the sparse to densely spaced reflective stripes.

Applying to the foot force measurement, the structure can be packaged, and a planar object such as a soft plastic plate is mounted on the touch screen structure, and the two layers of planar objects are separated by a soft elastic object to form an acoustic wave channel, when the plane is under pressure. The soft plastic plate type object is deformed, and the sound wave is blocked to find the force point. The upper and lower planes can also be mounted with a convex structure, which is oriented in the direction of the elastic isolation point and interlaced with the elastic isolation points, thereby also increasing the effect of widening the barrier, increasing the triggering effect and increasing the sensitivity. It is also possible to enclose the sound waves in a channel, such as a pipe. The transmitting and receiving sensing elements are installed at both ends of the pipe. These channels are arranged in a plane to achieve the function of the plane sensing pressure. The plane arrangement can also be superimposed up and down, and the vertical and vertical latitude and longitude lines are arranged to form precise coordinates.

The structure can be used in combination with the resistive screen structure. The surface wave touch screen structure is installed around the resistive screen structure described above, and the space of the elastic isolation point inside the resistive screen structure is used as the acoustic wave channel, and the current resistive screen has a small thickness. Moderately increase the thickness, you can. Also suitable for sound waves of other forms and intensities.

The force measuring insole of the present invention is characterized in that the insole is equipped with a force measuring device, and the force measuring device can have a capacitive touch screen structure. The capacitive touch screen is constructed by plating a transparent thin film conductor layer on the glass screen and adding a protective glass to the conductor layer. The double glass design completely protects the conductor layer and the inductor. Capacitive touch screens are coated with a transparent, special metal conductive material on the glass surface. When the finger touches the metal layer, the capacitance of the contact changes, so that the frequency of the oscillator connected to it changes, and the position of the touch can be determined by measuring the frequency change. Since the capacitance varies with temperature, humidity, or grounding conditions, its stability is poor, and drift often occurs. The capacitive touch screen is plated with narrow electrodes on all four sides of the touch screen to form a low voltage alternating electric field in the conductive body. When the screen is touched, due to the electric field of the human body, a coupling capacitor is formed between the finger and the conductor layer, and the current from the four electrodes flows to the contact, and the current intensity is proportional to the distance from the finger to the electrode, and the controller located behind the touch screen is The ratio and strength of the current are calculated, and the position of the touch point is accurately calculated. The dual glass of the capacitive touch screen not only protects the conductors and sensors, but also effectively prevents external environmental factors from affecting the touch screen. Even if the screen is stained with dirt, dust or oil, the capacitive touch screen can accurately calculate the touch position.

For foot measurement, you can replace the glass with other materials with the same or similar electrical properties, or use high-strength glass. At the same time, two layers of planar structure are installed on the touch screen structure, one layer is an elastic insulating layer with holes, or may be an insulating layer like a resistive screen, such as insulating rubber, which is laid on the surface of the capacitive touch screen structure, and the insulating layer is Above, is a conductive planar layer having a convex structure corresponding to the hole of the insulating layer, the protruding structure extending into the hole of the rubber layer or the gap of the elastic insulating isolation point, the height of the convex structure is lower than the insulation The thickness of the layer, the conductive plane layer may be a conductive rubber or a capacitive screen stylus material, and the conductive layer may also have a conductive line connected to the outside or connected to the human body. Such a combination, when there is no pressure on the upper conductive plane of the package, has no contact reaction, and when subjected to pressure, the conductive layer of the pressed portion contacts the capacitive touch screen structure downward to form a trigger, and the pressed position can be determined. The higher the convex structure and the corresponding hole density of the insulating layer, the higher the positional accuracy. The biggest advantage is that it can be multi-touch, and the external interference is reduced and the stability is increased after packaging.

The force measuring insole of the present invention is characterized in that the insole is equipped with a force measuring device, and the force measuring device has an electromagnetic induction touch screen structure. The basic principle of the electromagnetic induction touch screen is determined by the magnetic field change during the operation of the electromagnetic pen and the sensor under the panel. Electromagnetic touch requires a special stylus. The stylus is equipped with an electromagnetic wave transmitting circuit, and its electromagnetic signal is emitted through the tip of the electromagnetic pen. At the rear of the screen, an electromagnetic receiving plate is provided, and the grid-shaped antenna can receive the electric wave emitted by the electromagnetic pen. In this way, according to the location of the receiving signal antenna and the electromagnetic strength, after processing, the electromagnetic touch screen can calculate the coordinates of the touch point, thereby achieving the purpose of positioning.

Applied to the foot measurement, two layers of planar structure can be installed on the touch screen structure, one layer is an elastic insulating layer with holes, such as an insulating rubber layer, or an elastic isolation point insulating layer similar to a resistive screen, tiled in electricity The surface of the magnetic induction touch screen structure, the upper surface of the insulating layer, is another planar layer having a convex structure corresponding to the hole of the insulating layer, the convex structure extending into the hole of the rubber layer, and the height of the convex structure is lower than The thickness of the insulating layer, the top end of the convex structure is mounted with an electromagnetic emitter, and each emitter can share a transmitting circuit. In such a combination, when there is no pressure in the upper plane, there is no contact reaction, and when the pressure is applied, the upper layer of the lower portion of the pressed portion contacts the electromagnetic induction touch screen structure to form a trigger, and the pressed position can be determined. The raised structure may also have a resistive screen pressure sensitive pen structure to detect the pressure level.

The force measuring insole of the present invention is characterized in that the insole is equipped with a force measuring device, and the force measuring device has an optical touch screen structure. It is mounted on the top left and right corners of the two CCD cameras to accurately detect multiple pressure point locations. The LED light in the upper left corner of the top emits light, which is reflected by the surrounding reflection bar and enters the CCD camera in the upper right corner. Similarly, the light emitted by the LED light in the upper right corner is transmitted to the CCD camera on the left side. The dense light is in the touch area. A light net is formed inside. When the touch point enters the ray net, the emitted light of the point forms an angle with the received light, and the CCD camera at both ends and the straight line formed by the two lights and the two cameras form two angles, so that The coordinates of this point are accurately recorded by the controller, and the principle of multi-touch is the same!

Applied to the plantar force measurement, the structure can be packaged, and the upper and lower layers are mounted with planar objects, such as plastic plates. The two layers of planar objects are separated by soft elastic objects, such as elastic isolation points, forming light passages, when the plane is subjected to When the pressure is applied, the soft object is deformed, and the light is blocked and the force point is found. There may also be a raised structure between the two planar objects to increase the trigger sensitivity.

The force measuring insole of the present invention is characterized in that each insole is equipped with a force measuring device, and the force measuring device has a nano touch film structure. Nano-touch film, which is called “touch film”, is composed of two thin films with a grid of nano-wires interlaced by X and Y axes. Each matrix unit can sense The touch of a human hand. The touch signal of the hand is transmitted to the microchip controller connected to the nanowire, and the microcontroller transmits the signal to the computer through the interface, and the computer recognizes the position of the touch on the screen. In the touch film products, the core components such as sensors and film substrates are made of cutting-edge nano-scale materials, so some dealers call the touch film "nano touch film".

Touch film, also known as touch film, nano touch film, nano touch film, English name iFoil or interactive foil or touch foil or Touch film, is a transparent film, can be separated by a substrate (refers to non-metal substrate, including glass) , Acrylic board, wood board, plastic, etc.) accurately sense the touch of the human hand, is the core component of the precise positioning device such as touch screen, mainly to solve the problem of precise touch positioning. From PET film (polyethylene terephthalate, a high temperature resistant, corrosion resistant transparent flexible plastic), nanowires (referred to as ultrafine wires prepared by sintering of metal nanoparticles), control boards and driver software, The main four parts are composed.

Touch principle: The X-axis nanowire and the Y-axis nanowire are encapsulated in a PET film by a digital packaging automation device according to a certain rule, thereby forming an induction matrix, and each matrix unit is a proximity sensor. The sensing unit can sense different orientations. The matrix units form a holographic touch sensing matrix, and the sensing signal is input into the control chip by the touch sensing matrix, and then the control chip eliminates noise and transmits the effective touch signal to the upper layer driver software. Thereby achieving precise positioning, triggering action, and implementing touch function.

The sensing principle of nano-touch film belongs to the principle of improved projection capacitor. The ITO layer (indium tin oxide, which is often needed in the manufacturing process of capacitive touch screen and liquid crystal screen) is replaced by nano-wire layer. High-precision measurement algorithms accurately calculate signal changes. The nano touch film without ITO layer is one of the main features different from other projected capacitive touch screens.

The nano-touch film structure is used for the measurement of the sole of the foot, and the capacitive screen scheme, that is, the scheme of adding the plate, the isolation point and the convex structure, the requirement for the transparency of the material is lower, and the tougher material can be replaced. Get better force measurement. A little inductive touch turns into a pressure-sensitive touch.

The force measuring device of the present invention can also be increased in size, used alone or in combination as a flat force measuring device, for example, a plurality of force measuring devices are assembled together in an array plane, and can also be combined in multiple layers and tiled. On the floor, the plane area is up to or greater than 50 cm by 100 cm, which replaces the current gait analysis force plate, measures the gait data of the shoes, and compares and corrects the data in the shoes. It is also possible to refine the flexible touch sensor as a robot.

The force measuring device of the invention can be installed in the sole, such as the midsole and/or the outsole, and integrated with the shoes to become a professional smart shoe.

The force measuring insole of the present invention is characterized in that each insole is equipped with two or more force measuring devices, the force measuring devices are respectively installed on the rear end and the forefoot of the insole, and the force measuring device has a resistive screen A touch screen structure or a capacitive touch screen structure or a nano touch film structure or a surface wave touch screen structure or an electromagnetic screen structure or an infrared touch screen structure.

The force measuring insole of the present invention is characterized in that three or more force measuring devices are installed on each insole, the force measuring devices are respectively installed on the rear end and the forefoot of the insole, and the force measuring device has a resistive screen touch screen. Structure or capacitive touch screen structure or nano touch film structure or surface wave touch screen structure or electromagnetic screen structure or infrared touch screen structure.

The force measuring insole of the present invention is characterized in that each insole is equipped with two or more force measuring devices, the force measuring devices are respectively installed on the rear end and the forefoot of the insole, and the force measuring device has a piezoelectric layer. The film (PVDF) is a unique polymer sensing material that outputs a voltage signal with respect to changes in pressure or tensile force, making it an ideal dynamic strain gauge. After the electrical signal is amplified, the position of the force point and the magnitude of the force can be judged.

The force measuring insole has two or more layers of force measuring devices superimposed on each other. Suitable for rehabilitation exercises.

The force measuring insole has a force measuring device with four or more layers in one portion superposed on each other. Suitable for everyday life.

The force measuring insole has a measuring device with six or more layers at a portion superimposed on each other. Suitable for fitness exercises.

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The force measuring insole has a layer of 8 or more layers of force measuring devices superimposed on each other. Suitable for competitive sports.

The mutual superposition of the force measuring devices may be an increase of the same structure or an increase of different structures.

The various configurations of the inventive solution require a chip or hardware that combines high sampling frequencies with data acquisition frequencies greater than 500 Hz, 1 kHz, 10 kHz, 30 kHz, 50 kHz, 100 kHz. Used for rehabilitation, daily life, fitness, intensive sports, competitive sports and laboratory research. The data acquisition frequency can be the frequency of data acquisition for pressure, voltage, current or acousto-optic electromagnetic changes. The chip with high sampling frequency can also be used for the structure of the resistive screen, and also for the structure of the capacitive screen, the surface acoustic wave screen structure and the electromagnetic screen structure. For example, the touch screen controller ADS7843 is a dedicated touch screen control chip produced by BB, which is available in a small 16-pin thin package. The chip has a 12-bit A/D converter, which acts as a bridge between the touch screen and the CPU. It can convert the analog voltage of the contacts on the touch screen into digital signals to accurately determine the coordinate position of the contacts. The supply voltage Vcc of the ADS7843 is 2.7 to 5V, the reference voltage VREF is 1V to +Vcc, and the input range of the conversion voltage is 0 to VREF. It supports both single-ended and differential measurements with a maximum conversion rate of 125kHz. Texas Instruments acquired Burr-Brown (BB) in 2000. There are many hardware devices that can meet the requirements.

The inventive solution can be equipped with a distance sensor and/or a speed acceleration sensor and/or an angular velocity sensor at the foot center of the insole. As a complement to the data, mutual verification is mutually confirmed.

The raised structure of the present invention has a density of more than 120, 150, 400, 1000, 5,000 and 10,000 per square centimeter.

The structural layer with elastic isolation points and convex structures of the solution of the present invention, the internal convex structure density may be greater than 120, 150, 400, 1000, 5000 and 10000 per square centimeter for rehabilitation exercises respectively. , daily life, fitness, intensive sports, competitive sports and laboratory research. The density of the raised structure may refer to an average density, or may refer to a partial region density above an area of one square centimeter, that is, at least one square centimeter of which has a raised structure density greater than the number.

The structural layer having the elastic isolation point and the convex structure of the solution of the invention may have a density of isolation points of more than 120, 150, 400, 1000, 5000 and 10000 per square centimeter.

The structural layer with elastic isolation points and convex structures of the solution of the invention may have a density of isolation points greater than 120, 150, 400, 1000, 5000 and 10000 per square centimeter for rehabilitation exercise and daily life. , fitness, intensive sports, competitive sports and laboratory research. The isolation point described in the solution of the present invention may be an existing transparent transparent support fulcrum support point of the resistive screen, or may be other insulating materials and elastic insulating materials. The density of the isolation points may refer to the average density, or may refer to the density of the partial regions above an area of one square centimeter, that is, at least one square centimeter, the density of the isolation points is greater than the above.

The structural layer of the present invention having elastic isolation points and raised structures has a height greater than 15 microns, 25 microns, 50 microns, 100 microns, 200 microns, and 400 microns. The size of the isolation points determines the sensitivity to the size of the force, used for rehabilitation, daily life, fitness, intensive exercise, competitive sports and laboratory research.

The structural layer having the elastic isolation point and the convex structure of the solution of the present invention, the ratio of the height of the convex structure to the height of the elastic isolation point may be greater than 0.9:1, 0.85:1, 0.8:1, 0.7:1, 0.6:1, 0.5:1.

The structural layer having the elastic isolation point and the convex structure of the solution of the present invention, the ratio of the height of the convex structure to the height of the isolation point may be greater than 0.9:1, 0.85:1, 0.8:1, 0.7:1, 0.6:1, 0.5. : 1. Applicable to different exercise intensity and research precision, used for rehabilitation exercise, daily life, fitness exercise, intensive exercise, competitive sports and laboratory research. Also suitable for people of different weights.

The elastic isolation points of the solution of the present invention may be interconnected to form a honeycomb structure, or may be a combination of a rectangle, a square, a triangle, a pentagon, a hexagon and other polygons.

The structural layer of the elastic isolation point and the convex structure of the solution of the invention, in particular the resistive screen structural layer, the elastic isolation points may be connected to each other to form a honeycomb structure, or may be a rectangle, a square, a triangle, a pentagon, or a sixth. The combination of the edge shape and other polygons can make the mechanical support performance of the isolation point more stable, the force is more uniform, the resilience is better, and the contact point is more accurate for the convex structure design.

The inventive solution has two or more touch screen structures per insole, one of which is in the rear end region.

The structure of the present invention can be adapted to different uses of the product in any combination, regardless of the order.

The structures and combinations of the present invention can also be spliced to each other, increased in area, and applied to the force plate for correcting data differences between the shoe and the shoe.

The convex structure described in the solution of the present invention, especially the convex structure in the resistive screen structure, may be cylindrical or tapered, and is preferably cylindrical or conical, the cylindrical shape is convenient for processing, and the conical shape may be different according to different forces. Different contact areas will be produced, voltage and current will also be different, which can reflect more stress state, which is beneficial for data collection and analysis.

The power supply, the processor, the data recording device, the data storage device, and the data transmitting device used in the solution of the present invention can use existing mobile phone solutions and accessories, and can also use existing WiFi technology to transmit data such as Bluetooth, which are already mature technologies. , to the phone, computer, or server. Perform further analytical processing. No longer. Only the processing of data requires special software. The power circuit scheme can also adopt the existing handwriting board (computer handwriting input device) scheme. In the early days, there were many resistive screen structures and pressure touch modes, and the existing brands can be used for reference, such as Hanwang Ziguang General. The collected data can be implemented by existing storage devices, wired and wireless transmission devices, and can be continuously transmitted, or compressed by time segmentation, and compressed by time series compression packets.

The invention

BRIEF abstract

1 is a schematic view showing the distribution of seven segments of a force measuring shoe of the present invention.

According to Figure 1, the sole is divided into seven parallel segments from the back to the front according to the weight. The names of the segments are the rear end (1), the back palm (2), the waist block (3), and the back of the palm (4). Forefoot (5), palm front (6) and front end (7).

In Fig. 2, the inner side of the forefoot of the left foot is represented by (8), and the outer side is represented by (9).

In Fig. 3, the inner side of the forefoot of the right foot is represented by (8), and the outer side is represented by (9).

The medial lateral side and so on

Embodiment 1

A force measuring device is mounted on the rear end of the force insole, the inner side of the forefoot, the outer side of the forefoot, and the inner side of the palm. Each force measuring device is formed by superposing three resistive screen structures, and the three resistive screen structures are separated. The height of the layer gradually increases from top to bottom. The lowermost resistive screen has a 4 micron raised structure on the upper layer, and the distances of the respective raised structures are equally and evenly distributed.

Embodiment 2

A force measuring device is arranged on the rear end of the force measuring insole, the inner side of the forefoot, the outer side of the forefoot, the inner side of the palm front and the outer side of the waist. Each force measuring device is formed by superimposing four resistive screens, and four resistive screen structures are formed. The height of the interlayer gradually increases from top to bottom, and the lowermost resistive screen structure has a convex structure of 5 micrometers in the upper layer, and the distances of the respective convex structures are equally and evenly distributed.

The technical structural parts in the foregoing schemes can also be a separate embodiment.

Claims

A force measuring insole is characterized in that: each insole is installed with a touch screen structure, and the touch screen structure can be a resistive screen structure, a surface acoustic wave screen structure, an electromagnetic screen structure, a capacitive screen structure, and a nano touch film structure.
The force-shoe insole of claim 1 wherein the touch screen structure has an insulating resilient isolation point and an adjacent raised structure.
The force-measing insole of claim 2, wherein the chip or hardware connected to the touch screen structure has a data acquisition frequency greater than 500 Hz, 1 kHz, 10 kHz, 30 kHz, 50 kHz, 100 kHz.
The force-applying insole of claim 3 wherein the raised structure has a density of more than 120, 150, 400, 1000, 5,000 and 10,000 per square centimeter.
The force-cushion insole according to claim 3 and/or 4, characterized in that: the structural layer having elastic isolation points and convex structures, the isolation point density may be greater than 120, 150, 400, 1000 per square centimeter. , 5000 and 10,000.
A force-bearing insole according to claims 3, 4 and/or 5, characterized in that: the structural layer having an elastic isolation point and a convex structure, the ratio of the height of the convex structure to the height of the elastic isolation point may be greater than 0.9:1. , 0.85:1, 0.8:1, 0.7:1, 0.6:1, 0.5:1.
A force-bearing insole according to claims 3, 4, 5 and/or 6, wherein the elastic isolation points may be interconnected to form a honeycomb structure, or may be rectangular, square, triangular, pentagonal, or six. A combination of edges and other polygons.
A force-bearing insole according to claims 2, 3, 4, 5, 6 and/or 7, characterized in that: the insulating isolation point and the area of the adjacent raised structure, the internal air pressure is higher than the standard atmospheric pressure, which may be a standard 1.2 times or more, 1.5 times or more, 2 times or more, and 3 times or more of the atmospheric pressure.
A force-bearing insole according to claims 1, 2, 3, 4, 5, 6, 7 and/or 8 wherein each insole has two or more touch screen structures, one of which is at the rear end region.
A force-measing insole according to claims 1, 2, 3, 4, 5, 6, 7, 8 and/or 9 characterized in that the bottom surface of the force measuring device has a hardness greater than Shore 99 (HA) or rubber international hardness of 90. (IRHD), Shore 14 (HD), 30 (HD), 88 (HD), 20 HRA; a hard plate can also be installed on the lowermost layer of the force-test insole with a hardness greater than Shore 90 (HA) Or rubber international hardness 99 (IRHD), Shore 14 (HD), 30 (HD), 88 (HD), 20 HRA; bottom or hard plate, which may be glass, plastic and / or metal materials or hard synthetic The material has a thickness greater than 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm or 1 mm.