A flat-plate foot pressure detection system

Abstract

The present invention relates to a flat-plate foot pressure detection system, comprising: an outer packaging structure comprising a first packaging layer and a second packaging layer; a main support structure comprising a first support layer and a second support layer, the first support layer being provided with a first groove and a second groove, and the second support layer being provided with a third groove; a pressure sensing structure comprising a first pressure sensor and a second pressure sensor, the first pressure sensor being provided in the first groove, the second pressure sensor being provided in the second groove, and the pressure sensing structure being provided with electrode contacts; a data processor being provided in the third groove, the data processor comprising a spring pin printed circuit board, and the spring pin printed circuit board being connected to the electrode contacts. The main support structure is provided between the first packaging layer and the second packaging layer, and the first support layer is provided on the upper layer of the second support layer. The flat-plate foot pressure detection system is suitable for monitoring the foot pressure of patients with lower limb injuries.

Description

Technical Field

[0001] The invention relates to the technical field of sensors, and in particular to a flat-plate foot pressure detection system. Background Art

[0002] When people are standing or walking, the soles of their feet are under a certain amount of pressure, and the distribution of plantar pressure can reflect a person's health status. Usually, in the medical field, especially when tracking the injuries and recovery status of patients with lower limb injuries, doctors use observation and pressing to conduct subjective analysis and treatment. This method is inefficient and rough, while monitoring the distribution of plantar pressure on patients can intuitively feedback the extent of the patient's injury, making it easier for doctors to propose efficient and accurate treatment plans.

[0003] Existing optical imaging and carpet-type plantar pressure monitoring systems are limited by test time, test environment and complex test process, and are costly. It has been widely studied to integrate multiple flexible pressure sensors into smart insoles for plantar pressure detection. The application of smart insoles in the field of medical testing also involves the arrangement of the epitaxial wires connected to the pressure sensors, the arrangement of the hardware modules carrying data acquisition, information processing and wireless transmission, the arrangement of the charging lines, and the applicability of patients. For example, the existing smart insoles are integrated into the shoes, the hardware modules are placed in the appropriate position of the shoe surface, and the epitaxial conductive wires are tortuous, which has problems such as easy damage to the hardware and wires and short life; at the same time, it is also difficult for patients with lower limb injuries to put on and take off smart shoes because of the protective equipment they wear. Patent document CN110987142A proposes a portable foot shape and foot pressure detector and measurement method. Its main technical solution is to use multiple piezoelectric sensors to sense the plantar pressure signal. When a person stands on the pedal panel, the foot contacts the piezoelectric detection unit, which collects the plantar pressure and converts the plantar pressure into an electrical signal. The electrical signal is converted into a plantar pressure detection signal after amplification, conditioning, rectification and A / D conversion. This technology uses a piezoelectric pressure sensor. Compared with a piezoresistive pressure sensor, a DC amplifier is still required in the future, and there is leakage, and the cost is relatively high. Therefore, it is of great development significance to develop a low-cost and convenient detection device for monitoring plantar pressure in patients with lower limb injuries. Summary of the invention

[0004] Based on this, it is necessary to provide a flat-plate plantar pressure detection system for the problem of how to accurately and conveniently detect the plantar pressure of patients with lower limb injuries. The flat-plate plantar pressure detection system includes:

[0005] An outer packaging structure, the outer packaging structure comprising a first packaging layer and a second packaging layer;

[0006] A main support structure, the main support structure comprising a first support layer and a second support layer, the first support layer is provided with a first groove and a second groove, and the second support layer is provided with a third groove;

[0007] a pressure sensing structure, the pressure sensing structure comprising a first pressure sensor and a second pressure sensor, the first pressure sensor being disposed in the first groove, the second pressure sensor being disposed in the second groove, and the pressure sensing structure being provided with electrode contacts;

[0008] A data processor, the data processor is disposed in the third groove, the data processor comprises a spring pin printed circuit board, and the spring pin printed circuit board is connected to the electrode contact;

[0009] The main supporting structure is arranged between the first packaging layer and the second packaging layer, and the first supporting layer is located on the upper layer of the second supporting layer.

[0010] In one embodiment, two sensing areas are printed on the surface of the first packaging layer, and the second packaging layer has the same shape and size as the first packaging layer.

[0011] In one of the embodiments, the first groove and the second groove are symmetrically arranged on the first supporting layer, and the positions of the first groove and the second groove are aligned one-to-one with the two sensing areas in the layer direction; the first groove is provided with a first contact hole, and the second groove is provided with a second contact hole.

[0012] In one of the embodiments, the outer packaging structure, the main supporting structure and the pressure sensing structure are divided into a front end sole area, a middle end arch area, and a rear end heel area in terms of layer structure; the first groove and the second groove are arranged at corresponding positions on the first supporting layer and the first packaging layer on the sensing area layer positions, for placing the first pressure sensor and the second pressure sensor; the third groove is arranged on the second supporting layer for placing the printed circuit board; the electrode contact is arranged in the arch area of ​​the pressure sensing structure.

[0013] In one embodiment, the spring pin printed circuit board includes a first spring pin printed circuit board and a second spring pin printed circuit board, the spring pins of the first spring pin printed circuit board pass through the first support layer through the first contact holes, and the spring pins of the second spring pin printed circuit board pass through the first support layer through the second contact holes.

[0014] In one embodiment, the pressure sensing structure includes a sensing layer, an intermediate layer and an electrode layer, wherein the sensing layer is located above the intermediate layer, and the electrode layer is located below the intermediate layer.

[0015] In one of the embodiments, pressure-sensitive points are arranged on the sensing layer; the electrode layer includes interdigitated electrodes, the pressure-sensitive points and the interdigitated electrodes are aligned with each other one-to-one in the layer direction, the interdigitated electrodes are connected to electrode contacts, and the electrode contacts are arranged at a first contact hole and a second contact hole.

[0016] In one embodiment, the data processor includes a first circuit board and a second circuit board, a printed circuit board, a data processing module, a data acquisition module, a data transmission module and a battery, the first pressure sensor is connected to the first spring pin printed circuit board, the second pressure sensor is connected to the second spring pin printed circuit board, the first circuit board is connected to the first spring pin printed circuit board, the second circuit board is connected to the second spring pin printed circuit board, the first circuit board and the second circuit board are connected to the printed circuit board respectively, and the printed circuit board is provided with a data transmission module, a data acquisition module, a data processing module and a battery.

[0017] In one of the embodiments, a switch and a charging port are provided on the second supporting layer, the switch is connected to a printed circuit board, and the charging port is connected to the battery.

[0018] In one of the embodiments, it includes: a terminal device, and the data processor is connected to the terminal device.

[0019] The present invention provides a low-cost flat-plate plantar pressure detection system with a detachable plantar pressure sensor. The entire detection device is flexible, easy to carry, and is not affected by objective factors such as the test site and test time, and can better meet the needs of patients with lower limb injuries to monitor plantar pressure. Through structural design, the plantar pressure sensor in this flat-plate plantar pressure detection system is flexible and detachable, which is easy to replace; the tester stands in a designated measurement area, and the sensing area is designed and arranged according to the shape of the sole, so the detection positions are more and more accurate; at the same time, the plantar pressure signals of each sensing area are simulated and converted into digital signals, and wirelessly transmitted to terminals such as mobile phones, and can intuitively reflect the relative size of the force at each site of the sole through display methods such as thermal maps and force value maps, which is convenient and fast; the piezoresistive pressure sensing structure is adopted and the preparation process does not require complex and special processing technology, and the preparation cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall appearance diagram of an embodiment of a flat-plate foot pressure detection system provided by the present invention;

[0021] Figure 2 A structural diagram of an embodiment of a flat-plate foot pressure detection system provided by the present invention;

[0022] Figure 3 A diagram of a first support layer of an embodiment of a flat-plate foot pressure detection system provided by the present invention;

[0023] Figure 4 This is a diagram of a pressure sensing structure placed on the first supporting layer of an embodiment of a flat-plate plantar pressure detection system provided by the present invention.

[0024] Figure 5 A diagram of a second support layer of an embodiment of a flat-plate foot pressure detection system provided by the present invention;

[0025] Figure 6 An assembly diagram of the second support layer of an embodiment of a flat-plate plantar pressure detection system provided by the present invention;

[0026] Figure 7 A structural diagram of a pressure sensing layer and an electrode layer in a pressure sensor of an embodiment of a flat-plate foot pressure detection system provided by the present invention;

[0027] Figure 8 A diagram of the pressure sensor structure of an embodiment of a flat-plate foot pressure detection system provided by the present invention;

[0028] Figure Number:

[0029] 1- first packaging layer;

[0030] 2-sensing area;

[0031] 3- Second packaging layer;

[0032] 4- first supporting layer;

[0033] 5- second supporting layer;

[0034] 6- first groove;

[0035] 7- second groove;

[0036] 8-first contact hole;

[0037] 9- second contact hole;

[0038] 10- a first pressure sensor;

[0039] 11- second pressure sensor;

[0040] 12-pressure sensitive points;

[0041] 13-interdigitated electrodes;

[0042] 14-sensing layer;

[0043] 15-middle layer;

[0044] 16-electrode layer;

[0045] 17- third groove;

[0046] 18- switch;

[0047] 19-Charging port;

[0048] 20-first spring pin printed circuit board;

[0049] 21-second spring pin printed circuit board;

[0050] 22-a first circuit board;

[0051] 23- second circuit board;

[0052] 24-printed circuit board;

[0053] 25-data processing module;

[0054] 26-Battery;

[0055] 27-data transmission module;

[0056] 28-data acquisition module;

[0057] 29-Electrode contacts. DETAILED DESCRIPTION

[0058] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0063] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0064] See attached Figure 1 An embodiment of the present invention provides a flat-plate type plantar pressure detection system, characterized in that the flat-plate type plantar pressure detection system comprises:

[0065] An outer packaging structure, the outer packaging structure comprising a first packaging layer 1 and a second packaging layer 3;

[0066] A main support structure, the main support structure comprises a first support layer 4 and a second support layer 5, the first support layer 4 is provided with a first groove 6 and a second groove 7, the second support layer 5 is provided with a third groove 17;

[0067] A pressure sensing structure, the pressure sensing structure comprising a first pressure sensor 10 and a second pressure sensor 11, the first pressure sensor 10 is arranged in the first groove 6, the second pressure sensor 11 is arranged in the second groove 7, and the pressure sensing structure is provided with an electrode contact 29;

[0068] A data processor is disposed in the third groove 17 , and the data processor includes a spring pin printed circuit board, and the spring pin printed circuit board is connected to the electrode contact 29 .

[0069] The main supporting structure is arranged between the first packaging layer 1 and the second packaging layer 3 , and the first supporting layer 4 is located on the upper layer of the second supporting layer 5 .

[0070] In this embodiment, the overall appearance of the flat-plate foot pressure detection system proposed by the present invention is as follows: Figure 1 As shown, the side appearance of the flat panel device includes a first packaging layer 1, a first supporting layer 4, a second supporting layer 5 and a second packaging layer 3 from top to bottom. Figure 2 The first pressure sensor 10 and the second pressure sensor 11 can be directly placed in the first groove 6 and the second groove 7 according to the left and right feet. At this time, the electrode contacts 29 in the first pressure sensor 10 and the second pressure sensor 11 can contact the spring needle, completing the connection between the pressure sensing structure and the data processor and used to detect the plantar pressure. The plantar pressure sensor is detachable and replaceable.

[0071] The first packaging layer 1: Two sensing areas 2 in the shape of the sole of the foot are printed on the surface, which are consistent with the placement positions of the first pressure sensor 10 and the second pressure sensor 11 in the lower layer in the layer direction, showing the measurement area of ​​the flat-plate sole detection device.

[0072] First support layer 4: According to the shape of the left and right feet, the first groove 6 and the second groove 7 are machined to place the plantar pressure sensor. The depth of the first groove 6 and the second groove 7 is consistent with the depth of the first pressure sensor 10 and the second pressure sensor 11. At the same time, the first contact hole 8 and the second contact hole 9 are reserved at the positions of the arch areas of the left and right feet in the first groove 6 and the second groove 7, so that the spring needle in the second support layer 5 can penetrate the support layer 6. Figure 3 The first pressure sensor 10 is placed inside the first groove 6, and the second pressure sensor 11 is placed inside the second groove 7, as shown. Figure 4 shown.

[0073] The second support layer 5 is machined to form a third groove 17 for placing the printed circuit boards 24 according to the arrangement of the printed circuit boards 24. Figure 5 As shown. Figure 6 As shown, the arrangement of each part of the printed circuit board 24 is as follows (from left to right): a first spring pin printed circuit board 20 to be connected to the first pressure sensor 10 of the left foot, a first circuit board 22 to be connected to the printed circuit board 24, a printed circuit board 24 to be equipped with a data processing module 25, a data transmission module 27, a data acquisition module 28 and a battery 26, a second circuit board 23 to be connected to the printed circuit board 24, and a second spring pin printed circuit board 21 to be connected to the second pressure sensor 11 of the right foot; in addition, a switch 18 and a charging port 19 are arranged outside the second supporting layer 5. In addition, the spring pins that are in contact with the pressure sensing structure are higher than the upper surface of the second supporting layer 5 and can be inserted into the first groove 6 and the second groove 7 of the first supporting layer 4, and the depth of the third groove 17 of the remaining part is consistent with the thickness of the printed circuit board 24 carrying each module.

[0074] The second packaging layer 3 has the same outer contour and the same material as the first packaging layer 1 and packages the lower surface of the flat plate.

[0075] In one embodiment, two sensing areas 2 are printed on the surface of the first packaging layer 1 , and the second packaging layer 3 has the same shape and size as the first packaging layer 1 .

[0076] In one of the embodiments, the first groove 6 and the second groove 7 are symmetrically arranged on the first supporting layer 4, and the positions of the first groove 6 and the second groove 7 are aligned one-to-one with the two sensing areas 2 in the layer direction; the first groove 6 is provided with a first contact hole 8, and the second groove 7 is provided with a second contact hole 9.

[0077] In one of the embodiments, the outer packaging structure, the main supporting structure and the pressure sensing structure are divided into a front end sole area, a middle end arch area, and a rear end heel area in terms of layer structure; the first groove and the second groove are arranged at corresponding positions on the first supporting layer and the first packaging layer on the sensing area layer positions, for placing the first pressure sensor and the second pressure sensor; the third groove is arranged on the second supporting layer for placing the printed circuit board; the electrode contact 29 is arranged in the arch area of ​​the pressure sensing structure.

[0078] In one embodiment, the spring pin printed circuit board includes a first spring pin printed circuit board 20 and a second spring pin printed circuit board 21, the spring pins of the first spring pin printed circuit board 20 pass through the first support layer 4 through the first contact holes 8, and the spring pins of the second spring pin printed circuit board 21 pass through the first support layer 4 through the second contact holes 9.

[0079] In one embodiment, the pressure sensing structure includes a sensing layer 14 , an intermediate layer 15 and an electrode layer 16 , wherein the sensing layer 14 is located above the intermediate layer 15 , and the electrode layer 16 is located below the intermediate layer 15 .

[0080] In this embodiment, the flat-plate plantar pressure detection system also includes the preparation of a plantar pressure sensing structure, wherein the plantar pressure sensing structure includes a sensing layer 14, an intermediate layer 15, and an electrode layer 16, which are composed of the sensing layer 14, the intermediate layer 15, and the electrode layer 16 from top to bottom. Figure 8 As shown,

[0081] Sensing layer 14: Prepare a well-dispersed and stable graphene sensing layer 14 slurry, use screen printing technology to print the sensing material on the PET substrate, and then put it in an oven to dry at 80°C for ≥15h to complete the preparation of the sensing layer 14. The arrangement of the sensing sites, such as Figure 7 As shown;

[0082] Intermediate layer 15: A PET substrate of suitable thickness is used, and the corresponding structure of the intermediate layer 15 is designed with reference to the pre-designed pattern of the sensing layer 14, and the preparation of the intermediate layer 15 is completed by laser cutting;

[0083] Electrode layer 16: adopt the structure of interdigital electrode 13, design electrode circuit, process the FPC electrode layer 16 that meets the requirements, and add electrode contact 29 at the terminal of each interdigital electrode 13. The area of ​​electrode contact 29 is located at the arch position, such as Figure 7 Show.

[0084] Using the contact sensing principle, the sensing layer 14, the intermediate layer 15 and the electrode layer 16 are assembled according to the outer contour of the plantar pressure sensing structure, and the assembled sample is placed in an oven at 60°C for ≥3h.

[0085] In one embodiment, the sensing layer 14 is provided with a pressure sensing point 12;

[0086] The electrode layer 16 includes interdigitated electrodes 13, the pressure sensing points 12 and the interdigitated electrodes 13 are aligned one-to-one with each other in the layer direction, the interdigitated electrodes 13 are connected to electrode contacts 29, and the positions of the electrode contacts 29 in the electrode layer 16 correspond to the first contact holes 8 and the second contact holes 9.

[0087] In this embodiment, the layer direction of the plurality of pressure-sensitive points 12 and the plurality of interdigital electrodes 13 refers to the stacking direction of the electrode layer, the intermediate layer, and the pressure-sensitive layer. The plurality of pressure-sensitive points 12 and the plurality of interdigital electrodes 13 are aligned one-to-one with each other in the layer direction, and the projections of the plurality of pressure-sensitive points 12 and the plurality of interdigital electrodes 13 can overlap with each other in the layer direction.

[0088] In one embodiment, the data processor includes a first spring pin printed circuit board 20 connected to the first pressure sensor 10, a first circuit board 22 and a second circuit board 23, a printed circuit board 24, a second spring pin printed circuit board 21 connected to the second pressure sensor 11, a first data processing module 25, a data transmission module 27 and a battery 26.

[0089] In one embodiment, the first circuit board 22 is connected to the first spring pin printed circuit board 20; the second circuit board 23 is connected to the second spring pin printed circuit board 21; the first circuit board 22 and the second circuit board 23 are respectively connected to the printed circuit board 24, and the printed circuit board 24 is provided with a data transmission module 27, a data acquisition module 28, a data processing module 25 and a battery 26.

[0090] In one embodiment, a switch 18 and a charging port 19 are disposed on the second supporting layer 5 . The switch 18 is connected to a printed circuit board 24 , and the charging port 19 is connected to a battery 26 .

[0091] In one of the embodiments, the flat-panel plantar pressure detection system is connected to the terminal device through the data processor, and the plantar pressure data is transmitted to the terminal device, and a thermal map of the overall force on the sole of the person being tested and the relative force value of the pressure on each specific sensing area 2 are displayed on the terminal device.

[0092] Detecting plantar pressure:

[0093] Turn on the main switch 18 of the flat-type plantar pressure detection system, match Bluetooth, and pre-connect the detection device with the mobile phone / tablet terminal. The patient being tested can directly stand on the plantar sensing area 2 indicated by the flat-panel detection device. At this time, the mobile phone / tablet terminal can directly present a thermal map of the overall force on the plantar of the person being tested, and can also switch out the relative force value of the pressure on each specific sensing site.

[0094] The technical solution provided by the present invention has the following beneficial effects:

[0095] (1) A flat-plate plantar pressure detection system is suitable for monitoring the plantar pressure of patients with lower limb injuries. Through structural design, the plantar pressure sensor in the flat-plate plantar pressure detection system is flexible and detachable, which is easy to replace. In addition, the detachable plantar pressure sensor can also be used in smart running shoes, which has a wide range of applications.

[0096] (2) The plantar pressure sensing structure is integrated into the tablet plantar pressure detection device, which has a large operating space and can integrate the related hardware modules into the tablet; and a main switch 18 and a charging port 19 are provided, so that the detection device can be turned on as needed and the device can be charged using a conventional Micro / Type-C interface charging cable, which is simple to operate and has strong universality;

[0097] (3) The tester stands in the designated measurement area, and the sensing area 2 is designed and arranged according to the shape of the sole of the foot, with more detection positions and more accuracy; at the same time, the sole pressure signal of each sensing area 2 is simulated and converted into a digital signal, which is wirelessly transmitted to a mobile phone or other terminal, and can intuitively reflect the relative size of the force at each site of the sole of the foot through display methods such as heat map and force value map, which is convenient and fast;

[0098] (4) The piezoresistive pressure sensing structure is adopted and the preparation process does not require complicated and special processing technology, so the preparation cost is low.

[0099] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A flat-plate foot pressure detection system, characterized in that: The flat-plate foot pressure detection system comprises: An outer packaging structure, the outer packaging structure comprising a first packaging layer and a second packaging layer; A main support structure, the main support structure comprising a first support layer and a second support layer, the first support layer is provided with a first groove and a second groove, and the second support layer is provided with a third groove; a pressure sensing structure, the pressure sensing structure comprising a first pressure sensor and a second pressure sensor, the first pressure sensor being disposed in the first groove, the second pressure sensor being disposed in the second groove, and the pressure sensing structure being provided with electrode contacts; A data processor, the data processor is disposed in the third groove, the data processor comprises a spring pin printed circuit board, and the spring pin printed circuit board is connected to the electrode contact; The main support structure is arranged between the first packaging layer and the second packaging layer, and the first support layer is located on the upper layer of the second support layer; Two sensing areas are printed on the surface of the first packaging layer, and the second packaging layer has the same shape and size as the first packaging layer; the first groove and the second groove are symmetrically arranged on the first supporting layer, and the positions of the first groove and the second groove are aligned with the two sensing areas one by one in the layer direction; the first groove is provided with a first contact hole, and the second groove is provided with a second contact hole; the outer packaging structure, the main supporting structure and the pressure sensing structure are divided into a front end sole area, a middle end arch area, and a rear end heel area in terms of the layer structure; the first groove and the second groove are arranged at corresponding positions on the layer positions of the sensing areas on the first supporting layer and the first packaging layer, for placing the first pressure sensor and the second pressure sensor; the third groove is arranged on the second supporting layer for placing the printed circuit board; the electrode contact is arranged in the arch area of ​​the pressure sensing structure; the spring pin printed circuit board includes a first spring pin printed circuit board and a second spring pin printed circuit board, the spring pins of the first spring pin printed circuit board pass through the first supporting layer through the first contact hole, and the spring pins of the second spring pin printed circuit board pass through the first supporting layer through the second contact hole.

2. The flat-plate foot pressure detection system according to claim 1, characterized in that: The pressure sensing structure includes a sensing layer, an intermediate layer and an electrode layer. The sensing layer is located above the intermediate layer, and the electrode layer is located below the intermediate layer.

3. The flat-plate foot pressure detection system according to claim 2, characterized in that: include: The sensing layer is provided with pressure sensing points; The electrode layer includes interdigitated electrodes, the pressure sensing points and the interdigitated electrodes are aligned with each other one-to-one in the layer direction, the interdigitated electrodes are connected to electrode contacts, and the electrode contacts are arranged at the first contact hole and the second contact hole.

4. The flat-plate foot pressure detection system according to claim 1, characterized in that: The data processor includes a first circuit board and a second circuit board, a printed circuit board, a data processing module, a data acquisition module, a data transmission module and a battery. The first pressure sensor is connected to the first spring pin printed circuit board, the second pressure sensor is connected to the second spring pin printed circuit board, the first circuit board is connected to the first spring pin printed circuit board, the second circuit board is connected to the second spring pin printed circuit board, the first circuit board and the second circuit board are connected to the printed circuit board respectively, and the printed circuit board is provided with a data transmission module, a data acquisition module, a data processing module and a battery.

5. The flat-plate foot pressure detection system according to claim 4, characterized in that: The second supporting layer is provided with a switch and a charging port, the switch is connected to the printed circuit board, and the charging port is connected to the battery.

6. The flat-plate foot pressure detection system according to claim 1, characterized in that: The flat-plate foot pressure detection system comprises: The data processor is connected to the terminal device.

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