Intelligent sensing insole

Abstract

The invention discloses a smart sensing insole having a pressure sensing layer (e.g., a pressure plate) that includes sensors as sensing points that sense pressure and location distribution when foot pressure changes, each sensor coupled to a sensing module, the area of the sensing points being between 3-50% or 3-70% of the total bottom area of the insole; the sensing point positions at least comprise a pressure peak position, a pressure center area and a foot arch shape position.

Description

Technical Field

[0001] The invention relates to a shoe insole, in particular to an intelligent sensing shoe insole with a sensing function. Background Art

[0002] The feet bear the weight of the body. According to medical literature and related research, the feet are closely related to physical health. Plantar pressure is an important indicator of gait patterns. The measurement of plantar pressure distribution has important indicative significance in the fields of biomechanics, rehabilitation medicine, sports training, shoemaking, etc. The pressure test plates and test benches currently used have spatial limitations. The existing sensors for testing plantar pressure have sensing units that contact the human foot, which are easily worn due to frequent contact with the sole of the foot, are not conducive to long-term wear and testing, and cannot provide sufficient health information.

[0003] Prior art The patent application with Taiwan Announcement No. TW201729704A includes a pressure sensor, a temperature sensor, and a humidity sensor. The pressure sensor, the temperature sensor, and the humidity sensor are formed on the surface of the insole body, not in the interlayer. The disadvantage is that the sensor is easily worn and the user feels uncomfortable. The length, width, and thickness of each sensor can be 1mm×3mm×0.02mm. It is obvious that each single individual device is used, so it does not have mass production efficiency, and no special areas are targeted. There is no priority for configuration based on cost-effectiveness, and there is no specific location for specific sensor configuration. This prior art is a random configuration, so it is impossible to capture data at key locations, resulting in distortion.

[0004] With the rapid development of cloud computing, wireless communication technology and artificial intelligence, health systems integrating various sensors, wireless communication and intelligent computing have become the focus of research and development. Therefore, in view of this, collecting health information seems to be urgent and necessary. The present invention proposes a smart sensing insole to facilitate the assessment of plantar pressure. Summary of the invention

[0005] The present invention can fully measure the information of the foot. The purpose of the present invention is to provide a smart insole that improves the sensing effect. The present invention discloses a smart sensing insole, comprising: a pressure sensing layer, comprising a sensor configuration, the sensor as a sensing point, sensing the pressure change and position distribution when the foot pressure changes, and the area of ​​the sensing point accounts for 3-50% or between 3-50% of the total insole bottom area. The factors considered for the sensing point configuration position include: pressure peak position, pressure center area or arch shape position, wherein the first position range (priority configuration) includes: big toe area, first toe joint area, fifth toe joint area, heel area; the second position range (secondary configuration) includes: middle toe joint area, lateral longitudinal arch close to heel area, transverse arch middle area, lateral longitudinal arch close to transverse arch area. The third position range (last configuration) includes: medial longitudinal arch close to transverse arch area, medial longitudinal arch close to heel area.

[0006] The present invention includes a foot sensing module coupled to the pressure sensing layer to receive foot sensing data; the foot sensing module is configured at the arch of the smart sensing insole. The present invention may also include an inertial sensor, an infrared sensor, and a GPS, which are configured at the arch of the smart sensing insole.

[0007] In another embodiment, the present invention includes a wireless transmission / reception module, coupled to the foot sensing module, and wirelessly coupled to an external mobile device. The foot information received and processed by the foot sensing module can be displayed by the external mobile device, wherein the foot information includes one or any combination of the following: foot pressure distribution, weight distribution ratio of body weight to left and right feet, gait, step frequency, and foot pressure center. The foot information can be uploaded to a big data database via the mobile device, and the big data database uses blockchain as the communication architecture.

[0008] In one embodiment, the foot sensing module can be used to collect foot information and display it in real time through a mobile device to obtain personal foot pressure information and establish the relationship between exercise and foot pressure. The foot sensing module is connected to one or any combination of a pressure sensing device, an inertial sensor, an infrared sensor, an accelerometer, a gyroscope, and a GPS. All foot information can be processed to obtain foot pressure distribution and foot blood circulation status data.

[0009] In another aspect of the present invention, the present invention can achieve accurate pressure and motion measurement, whether it is uphill or downhill motion, through accurate sensing data, it is conducive to motion analysis. The present invention can provide motion sensing and management, and provide details of each process. Based on the above, the present invention proposes to solve the shortcomings of the prior art. According to one aspect of the present invention, the present invention can be used to collect foot information and store it in a cloud big data database through a mobile device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram showing the structure of the present invention is shown.

[0011] Figure 2A The pressure sensing layer proposed by the present invention is shown.

[0012] Figure 2B The pressure sensing layer proposed by the present invention is shown.

[0013] Figure 3 The functional block diagram of the smart sensing insole and the mobile device of the present invention is shown.

[0014] Figure 4 A functional block diagram showing the cloud server and mobile device of the present invention.

[0015] Main component symbols

[0016] 10: Insole

[0017] 12: Pressure sensing layer

[0018] 12a: Pressure sensor

[0019] 14: Arch pad

[0020] 16:Sensor module

[0021] 101: Smart Sensing Insoles

[0022] 103: Mobile Device

[0023] 105: Cloud Network

[0024] 107: Cloud Server

[0025] 108: Big Data Database

[0026] 109: Pressure sensing layer

[0027] 116: Foot sensing module

[0028] 132: Wireless transmission / reception module

[0029] 138: Pressure sensor

[0030] 139: Infrared sensor 139

[0031] 140: Inertial Sensor

[0032] 142,142a: Processor

[0033] 143,143a: User Interface

[0034] 144,144a:Internet Interface

[0035] 145: Wireless transmission / reception module

[0036] 146,146a: Storage device

[0037] 148: AI calculation module

[0038] 1091: Longitudinal wire

[0039] 1092: Horizontal wire DETAILED DESCRIPTION

[0040] Here, the present invention will be described in detail with respect to specific embodiments of the invention and their viewpoints. Such descriptions are for explaining the structure or step flow of the present invention, which are for illustrative purposes and do not limit the scope of the present invention. Therefore, in addition to the specific embodiments and preferred embodiments in the specification, the present invention can also be widely implemented in other different embodiments. The following describes the implementation of the present invention by means of specific specific embodiments, and people familiar with this technology can understand the effectiveness and advantages of the present invention through the contents disclosed in this specification. In addition, the present invention can also be used and implemented through other specific embodiments, and the various details described in this specification can also be applied based on different needs, and various modifications or embellishments can be made without departing from the spirit of the present invention.

[0041] The present invention combines artificial intelligence AI and dynamic sensing technology. The integrated design allows users to wear shoes without feeling anything, but can accurately record and analyze the status of the feet, providing users with the most complete health management information. Real-time feedback information through the application APP not only helps with all-round health management, but also analyzes various characteristic data through exercise history, and fully evaluates the status to reduce risks. It is an indispensable tool for exercising and health management. The plantar pressure sensing of the present invention, in one embodiment, includes a pressure sensing plate, which obtains pressure values ​​during the measurement process, and obtains plantar pressure parameters and pressure distribution diagrams based on subsequent processing.

[0042] Figure 1 The schematic diagram of the architecture of the present invention is shown, including a cloud server 107, which is electrically connected to a large data database 108. The present invention can use a smart sensing insole 101 to collect foot information, monitor the user's foot pressure, blood oxygen (described later), etc. The smart sensing insole 101 can be communicatively connected to a mobile device (for example, an external computing electronic device such as a smart phone, a tablet computer, etc.) 103. The present invention includes an application installed in the mobile device, and the application receives and sends data instructions between the smart sensing insole 101, the mobile device 103 and the cloud server 105. The above application can operate based on an Android, Windows or iOS operating system platform, and can upload the collected relevant data / signals to the cloud server 107 for storage, and generate foot information after data analysis and calculation processing, and provide health management suggestions based on it.

[0043] Figure 2AA top view of the insole is shown, wherein the pressure sensing layer 12 is embedded inside the insole 10, and the pressure sensing layer 12 includes a plurality of pressure sensors 12a, each of which is used as a sensing point to sense the change in pressure and position distribution when the foot pressure changes. The pressure sensor 12a is electrically connected to the sensing module 16 via a wire 24. The shape of the pressure sensor 12a includes a rectangle, a triangle, a circle, a pentagon, a hexagon or any suitable shape. When the pressure sensor 12a is deformed by pressure, it causes a change in resistance, and the magnitude of the pressure is calculated by the change in resistance. The pressure sensing layer is integrated into the insole 10 in an integrally molded manner. The insole 10 may include a thermoplastic polyester elastomer layer (TPEE), and the insole 10 may also include an arch pad 14 integrated therein. The sensing module 16 collects the electronic signals of multiple pressure sensors, processes them and transmits the signals. The sensing module 16 is embedded in the arch pad 14 of the insole or integrally formed in the insole 10 to avoid or minimize contact and stimulation to the wearer's feet.

[0044] In one embodiment, the smart sensing insole 101 of the present invention includes a pressure sensing layer 109 (eg, Figure 2B As shown), it is used to detect the sole pressure, the pressure distribution of the left and right feet, the gait, and the step frequency. In one embodiment, a pressure plate can be used. The present invention has a pressure sensing layer 109 embedded in the insole. The pressure sensing layer 109 includes an array configuration composed of a longitudinal wire 1091 and a transverse wire 1092. The intersection of the longitudinal wire 1091 and the transverse wire 1092 serves as an individual pressure sensing point (sensor). When the foot pressure changes, the pressure value and position distribution are sensed. The pressure sensing layer 109 is electrically connected to the sensing module through a wire. It is worth noting that the longitudinal wire 1091 here includes a vertical wire and a longitudinal inclined wire, and the longitudinal inclination angle is between 1-30 degrees with the vertical direction. The transverse wire 1092 includes a horizontal wire and a transverse inclined wire, and the transverse inclination angle is between 1-30 degrees with the horizontal direction. The longitudinal wires 1091 and transverse wires 1092 divide the insole area into at least 10-120 blocks, depending on the laying sensing density; one embodiment is to construct 20-100 blocks, and another embodiment is to construct 30-80 blocks, which can take into account both cost-effectiveness and better sensing density. The configuration of the longitudinal inclined wires and the transverse inclined wires is to reconcile the matrix with the sole shape, and the longitudinal inclined wires or the transverse inclined wires can include straight lines or curves. The area of ​​the sensing point accounts for 3%-50% of the total insole bottom area, and another embodiment is 10%-40%. This value is obtained based on the experimental group and the control group through multiple experiments. It can be verified that the area range will not cause discomfort to the user and will not reduce the sensing performance. The present invention can collect the pressure distribution status, confirm the pressure center position, determine whether the center is offset when the user is standing, and determine that the abnormal pressure distribution can prompt the walking posture.

[0045] Through the research and experience accumulation of this case, the pressure sensing configuration position can be divided into at least three position ranges. Too many sensors do not help to obtain better data, so the sensors should be configured in effective places. Through the research and experience accumulation of this case, the configuration position can be divided into at least three position ranges. The main considerations are the pressure peak position, the pressure center area, and the position where the arch shape difference is expressed. The first position range 1000 is the first priority deployment range, including: the big toe area, the first toe joint area, the fifth toe joint area, and the heel area. The second position range 2000 is the second priority deployment range, including: the middle toe joint area, the lateral longitudinal arch close to the heel area, the middle area of ​​the transverse arch, and the lateral longitudinal arch close to the transverse arch area. The third position range 3000 is the third priority deployment range, including: the medial longitudinal arch close to the transverse arch area, and the medial longitudinal arch close to the heel area. According to cost and benefit, the above-mentioned sequence configuration and configuration quantity can be used, and when there are more needs, it can be deployed in other areas outside the above three position ranges.

[0046] FIG. 2 is a schematic diagram. To facilitate the display of the longitudinal conductive line 1091 and the transverse conductive line 1092 , the spanning ranges 1000 , 2000 , and 3000 are not drawn. However, in fact, the above ranges can be spanned.

[0047] The vertical conductor 1091 and the horizontal conductor 1092 form an array configuration, and the intersection of the two lines forms a pressure sensing point. In one embodiment, the pressure sensing layer 109 includes a resistive pressure sensing component, and the resistive pressure sensing line is composed of a conductive polymer, and the conductive polymer changes resistance as the pressure changes. Applying force can make the conductive particles contact, thereby increasing the current passing through the sensing line and calculating the pressure value. Another embodiment uses capacitive pressure sensing. Capacitive pressure sensing uses a diaphragm to separate the vertical wire and the horizontal wire. When the diaphragm is deformed by pressure, the gap between the diaphragm and the two wires changes, further causing a change in capacitance, and the pressure is calculated by the change in capacitance.

[0048] In another implementation, if Figure 3 It is shown that the smart sensing insole 101 can have a built-in inertial sensor 140. The inertial sensor 140 includes a three-axis accelerometer and a three-axis gyroscope to sense static and dynamic physical values ​​of the foot. The inertial sensor 140 can be configured at the arch of the foot, or in a block formed by the longitudinal wire 1091 and the transverse wire 1092 interweaving.

[0049] In another embodiment, the smart sensing insole 101 is equipped with an infrared sensor 139, which has a red light / infrared light source, for blood oxygen and blood pressure detection. Blood pressure detection can use optical sensing of subcutaneous blood flow, and then obtain blood pressure data through a known algorithm. The principle of blood oxygen detection through transmission is that when blood is sent to the extremities, it will produce a slight volume change with the heart rate. It uses red light and infrared light sources to illuminate, pass through the tissue and receive the light. The difference in the influence of slight volume changes on light intensity is converted into a signal and the blood oxygen concentration is calculated.

[0050] like Figure 3 As shown, the smart sensing insole 101 can be for the left foot or the right foot. The two are symmetrical structures. The icon only shows one of them. It should be known that it can be applied to both feet. The smart sensing insoles 101 of both feet are electrically connected to mobile devices 103, such as smart phones or tablet computers. Data can be received and sent through the wireless transmission / reception module 132. The wireless transmission / reception module 132 is matched with wireless telecommunication specifications, such as WiFi, Bluetooth, RFID, NFC, 5G or any other future wireless communication specifications. The wireless transmission module 132 is connected to the antenna to send and receive data.

[0051] The smart sensing insole 101 communicates with the external mobile device 103. The smart sensing insole 101 includes a foot sensing module 116 embedded in the arch of the insole, which is used to receive and analyze foot pressure distribution and foot blood circulation data, and transmit the above data to a remote computing device or server through a wireless transmission / reception (TX / RX) module 132 located in the foot sensing module 116.

[0052] The foot sensing module 116 can execute software applications, which include a microprocessor and a storage unit. The microprocessor can be a microcontroller, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic circuit, or other digital data processing device that executes instructions to perform processing operations according to the present invention. The microprocessor can execute various application programs stored in the storage unit, including executing firmware algorithms. The storage unit can include a read-only memory (ROM), a random access memory (RAM), an electrically erasable programmable ROM (EEPROM), flash memory, or any memory generally used in computers.

[0053] Figure 3The foot sensing module 116 signal is displayed to be transmitted / received via a wireless transmission / reception (TX / RX) module 132. In one embodiment, the wireless transmission / reception module 132 may be a wireless data transmission / reception device with Bluetooth, WiFi or similar functions. In other words, the wireless transmission / reception module 132 matches wireless telecommunication specifications, such as WiFi, Bluetooth, RFID, NFC, 5G or any other future wireless communication specifications. The foot sensing module 116 may be electrically connected to the pressure sensor 138 in the pressure sensing layer 109 via a connection terminal, or connected to an infrared sensor 139 or an inertial sensor 140. The foot sensing module 116 also includes a processing system (e.g., one or more microprocessors), a memory, and the like.

[0054] The left or right smart sensing insole 101 includes additional sensors, such as accelerometers, gyroscopes, GPS, etc., and a power supply device to supply power to each component. It should be understood that the foot sensing module 116 can provide a computer program / algorithm to control the collection and storage of data (e.g., the user's foot pressure distribution data or pressure data interacting with the ground, the user's foot blood circulation status, etc.), and these programs / algorithms can be stored and / or executed.

[0055] The mobile device 103 includes a processor 142, a user interface 143, an Internet interface 144 and a storage device 146, which are respectively connected to the processor 142. The user interface 143 includes one or more input devices (e.g., a touch screen, a voice input device, etc.), one or more audio output devices (e.g., a speaker, etc.) and / or one or more visual output devices. The Internet interface 144 includes one or more networking devices (e.g., a wireless local area network (WLAN) device, a wired LAN device, a wireless wide area network (WWAN) device, etc.; the storage device 146 includes a flash memory device. The wireless transmission / reception (TX / RX) module 145 can transmit / receive data with the wireless transmission / reception (TX / RX) module 132.

[0056] In one embodiment, the big data database 108 is connected to the cloud server 107. Figure 1 and Figure 4, the big data database 108 is electrically connected to the AI ​​calculation module 148. In one embodiment, the AI ​​calculation module 148 disposed in the cloud server 107 can analyze the information data collected by the big data database 108. The AI ​​algorithm may include a series of steps: pre-filtering and normalizing the input signal, extracting time domain and frequency domain features, and using a convolutional neural network (CNN) model to output classification results. Similarly, the cloud server 107 includes a user interface 143a, an Internet interface 144a, a storage device 146a, and each is connected to a processor 142a. In one embodiment, regardless of the type of exercise, accurate sensing data is obtained through insoles to facilitate appropriate health management. After AI analysis of the user's weight, speed, pressure and other data, the exercise is analyzed. The above is a function that previous insole technology and sports watches cannot achieve.

[0057] In another viewpoint, the mobile device 103 combines with the algorithm system to process the data from the sensor in the shoe, and can analyze the pressure distribution, gait, step frequency, and center of pressure (COP). Foot pressure distribution plays a key role in human movement. The foot shape and walking (running) posture affect the posture and bone changes of the human body, as well as the performance and limit of athletes. The insole with an integrated sandwich sensor proposed by the present invention can obtain the parameter data of the foot pressure distribution of many users over time and space by setting the insole in the shoe, and upload it to an external computing device, such as a smart phone, a personal computer, a computer server, etc., by wireless transmission, and calculate and analyze and store it in the cloud system as a relevant big data database. Generally, traditional technologies lack visual / data-based learning standards to allow users to clearly understand every detail of the movement state. Help users understand the foot pressure distribution status to adjust the walking posture. Provide detailed trajectory during movement.

[0058] In addition, the smart sensing insole proposed by the present invention can also integrate the infrared sensor 139 to simultaneously provide the user with blood circulation status information. It breaks through the limitation that only medical institutions or sports research institutions can obtain data analysis in the past, so that more users can obtain exclusive personal foot information. In one embodiment, the above data is transmitted wirelessly, and combined with the application APP, it can be displayed in real time to visualize the above data. The analysis data stored in the big data database 108 of the present invention can not only provide consumers with their own health management, but also be combined with other industries to provide foot information for reference by hospitals and shoemaking industries. The big data database 108 uses blockchain as the communication architecture, the data cannot be changed, and the transmission is encrypted.

[0059] The present invention has a wireless charging induction coil, which is arranged on one side of the smart induction insole 101 to facilitate wireless charging and provide the power required by the smart induction insole. It is needless to say that the smart induction insole 101 has a rechargeable battery and a power supply module. In another embodiment, the wireless transmission / reception (TX / RX) module 132 can be replaced by or coexist with a USB (Universal Serial Bus) port for data transmission and wired charging.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention and its benefits are described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the claims of the present invention.

Claims

1. An intelligent sensing insole, characterized in that: Include: A foot sensing module is disposed in the insole; A pressure sensing layer, comprising a sensor as a sensing point to sense pressure changes, wherein the sensor is connected to the foot sensing module, and the area of ​​the sensing point accounts for 3%-50% or 3%-70% of the total insole bottom area; An inertial sensor connected to the sensing module; A wireless charging induction coil is disposed in the insole and coupled to the foot sensing module; and The wireless transmission / reception module is coupled to the foot sensing module.

2. The smart sensing insole according to claim 1, characterized in that: The inertial sensor includes an axial accelerometer, a gyroscope, or a combination thereof.

3. The smart sensing insole according to claim 1, characterized in that: Contains infrared light sensor, GPS or a combination of the above.

4. The smart sensing insole according to claim 1, characterized in that: The wireless transmission / reception module includes WiFi, Bluetooth, RFID, NFC, 5G or a combination of the above.

5. The smart sensing insole according to claim 1, characterized in that: It includes an external device coupled to the wireless transmission / reception module, which can display foot information through an external mobile device, wherein the foot information includes one or any combination of the following: foot pressure distribution, gait, step frequency, and pressure center.

6. The smart sensing insole according to claim 5, characterized in that: The external device is coupled to a cloud server, which includes an AI calculation module that executes the following steps: pre-filtering and normalizing the input signal, extracting time domain and frequency domain features, and using a convolutional neural network model to output classification results.

7. The smart sensing insole according to claim 6, characterized in that: The foot information is uploaded to a big data database via the mobile device.

8. The smart sensing insole according to claim 7, characterized in that: The big data database uses blockchain as its communication architecture to make the data impossible to change.

9. The smart sensing insole according to claim 1, characterized in that: The sensing point positions include the pressure peak position, the pressure center area, and the arch shape position.

10. The smart sensing insole according to claim 9, characterized in that: The first position range of the sensing point includes: the big toe area, the first toe joint area, the fifth toe joint area, and the heel area; the second position range of the sensing point includes: the middle toe joint area, the lateral longitudinal arch close to the heel area, the middle area of ​​the transverse arch, and the lateral longitudinal arch close to the transverse arch area.

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