Pressure sensing module, fitness mat and fitness system

Abstract

The utility model discloses a pressure sensing module, a fitness mat and a fitness system. The pressure sensing module comprises a conductive layer and a pressure change layer, the conductive layer comprises a high-resistance conductive film, and the high-resistance conductive film is electrically connected with the control module through a first conductor; the voltage change layer is located on one side of the high-resistance conductive film, and the voltage change layer is electrically connected with the control module through a second conductor; a gap is formed between the conductive layer and the pressure change layer when no external force exists, and the pressure change layer generates elastic deformation under the external force to reduce the gap. The utility model provides a pressure sensing module, a fitness mat and a fitness system. The manufacturing cost of the fitness mat can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a pressure sensing module, a fitness mat and a fitness system. Background Art

[0002] At present, as people pay more attention to healthy life, more and more practitioners use fitness mats to practice fitness movements. However, the existing fitness mats have the disadvantages of a large number of film layer structures and a high production cost. Utility Model Content

[0003] The utility model provides a pressure sensing module, a fitness mat and a fitness system, which can reduce the manufacturing cost of the fitness mat.

[0004] According to one aspect of the utility model, a pressure sensing module is provided, the pressure sensing module comprising: a conductive layer and a pressure-variable layer;

[0005] The conductive layer includes a high-resistance conductive film, and the high-resistance conductive film is electrically connected to the control module through a first conductor;

[0006] The pressure-variable layer is located on one side of the high-resistance conductive film, and the pressure-variable layer is electrically connected to the control module through a second conductor;

[0007] There is a gap between the conductive layer and the pressure-variable layer when no external force is applied, and the pressure-variable layer generates elastic deformation under the action of external force to reduce the gap.

[0008] Optionally, the conductive layer further comprises a low-resistance conductive film, and the low-resistance conductive film is attached to a surface of the high-resistance conductive film on a side away from the pressure-variable layer;

[0009] The low-resistance conductive film is electrically connected to the first conductor.

[0010] Optionally, the low-resistance conductive film is a conductive tape or a metal particle film composed of metal particles.

[0011] Optionally, the high-resistance conductive film includes a plurality of first through holes;

[0012] The vertical projection of the low-resistance conductive film on the high-resistance conductive film has no overlap with the first through hole;

[0013] A vertical projection of the pressure-variable layer on the high-resistance conductive film does not overlap with the first through hole.

[0014] Optionally, the pressure-variable layer includes a first conductive strip extending along a first direction and n second conductive strips arranged at intervals along the first direction, wherein n is greater than or equal to 2 and is an integer;

[0015] The first end of each of the second conductive strips is electrically connected to the first conductive strip.

[0016] Optionally, two adjacent second conductive strips include at least one first through hole between their vertical projections on the high-resistance conductive film.

[0017] Optionally, the high-resistance conductive film is a carbon film or a semiconductor material film;

[0018] The pressure-change layer is a metal foil.

[0019] Optionally, when no external force is applied to the pressure sensing module, the resistance range of the pressure sensing module is 7MΩ to 10MΩ;

[0020] When an external force acts on the pressure sensing module, the resistance range of the pressure sensing module is 4MΩ to 5MΩ.

[0021] Optionally, when no external force is applied to the pressure sensing module, the resistance range of the pressure sensing module is 3MΩ to 5MΩ;

[0022] When an external force acts on the pressure sensing module, the resistance range of the pressure sensing module is 140KΩ to 160KΩ.

[0023] Optionally, a vertical projection of the pressure-variable layer on the high-resistance conductive film and a vertical projection of the low-resistance conductive film on the high-resistance conductive film at least partially overlap.

[0024] According to another aspect of the utility model, a fitness mat is provided, the fitness mat comprising a pressure sensing layer, a first cushion layer and a second cushion layer;

[0025] The pressure sensing layer is located between the first cushion layer and the second cushion layer;

[0026] The pressure sensing layer includes a plurality of pressure sensing modules provided by any embodiment of the utility model.

[0027] Optionally, the fitness mat provided in this embodiment further includes a first conductor, a second conductor and a control module;

[0028] The control module is used to collect the electrical signal between the conductive layer and the pressure-variable layer in each of the pressure sensing modules through the first conductor and the second conductor.

[0029] Optionally, the fitness mat provided in this embodiment further includes a printed circuit board;

[0030] Each of the pressure-changing layers is located on the surface of the printed circuit board;

[0031] The printed circuit board is located on a side of the pressure-variable layer away from the high-resistance conductive film;

[0032] Each of the voltage-change layers is electrically connected to the control module through the printed circuit board.

[0033] Optionally, the printed circuit board includes second through holes having a number equal to that of the first through holes;

[0034] A vertical projection of the second through hole on the first cushion layer at least partially overlaps with a vertical projection of the first through hole on the first cushion layer.

[0035] Optionally, the printed circuit board is connected to the high-resistance conductive film by sewing thread or adhesive;

[0036] The vertical projection of the low-resistance conductive film on the high-resistance conductive film does not overlap with the sewing line;

[0037] The vertical projection of the low-resistance conductive film on the high-resistance conductive film does not overlap with the adhesive;

[0038] The vertical projection of the pressure-variable layer on the high-resistance conductive film does not overlap with the sewing line;

[0039] A vertical projection of the pressure-variable layer on the high-resistance conductive film has no overlap with the adhesive.

[0040] Optionally, the first conductor and / or the second conductor is a wire.

[0041] According to another aspect of the present invention, a fitness system is provided. The fitness system includes a terminal device and a plurality of fitness mats provided by any embodiment of the present invention, wherein the fitness mats are communicatively connected to the terminal device.

[0042] The present embodiment provides a pressure sensing module, which includes a two-layer structure, one of which is a conductive layer and the other is a piezoelectric layer. The conductive layer includes a high-resistance conductive film. The high-resistance conductive film is electrically connected to the control module through a first conductor, and the pressure-variable layer is electrically connected to the control module through a second conductor. The pressure-variable layer can be deformed under the action of an external force, thereby changing the resistance of the pressure sensing module. It can be seen that the pressure sensing module provided by the present embodiment can sense external pressure, and the number of pressure film layers provided by the present embodiment is relatively small, which can reduce the production cost of the pressure sensing module.

[0043] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 It is a structural schematic diagram of a pressure sensing module provided according to an embodiment of the utility model;

[0046] Figure 2 It is a structural schematic diagram of a conductive layer provided according to an embodiment of the utility model;

[0047] Figure 3 It is a structural schematic diagram of a pressure-variable layer provided according to an embodiment of the utility model;

[0048] Figure 4 is a structural schematic diagram of another pressure sensing module provided according to an embodiment of the utility model;

[0049] Figure 5 It is a schematic diagram of the structure of another conductive layer provided according to an embodiment of the utility model;

[0050] Figure 6 It is a structural schematic diagram of a fitness mat provided according to an embodiment of the utility model;

[0051] Figure 7 It is a schematic diagram of the structure of a pressure sensing layer provided according to an embodiment of the utility model;

[0052] Figure 8 is a schematic structural diagram of another pressure sensing layer provided according to an embodiment of the utility model;

[0053] Fig. 9 It is a structural schematic diagram of another pressure sensing module provided according to an embodiment of the utility model. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0056] Figure 1 is a structural schematic diagram of a pressure sensing module provided according to an embodiment of the utility model, Figure 2 is a schematic structural diagram of a conductive layer provided according to an embodiment of the utility model, Figure 3 is a schematic diagram of a structure of a pressure-variable layer provided according to an embodiment of the utility model, with reference to Figure 1-Figure 3 The pressure sensing module provided in this embodiment includes a conductive layer 110 and a pressure-variable layer 120; the conductive layer 110 includes a high-resistance conductive film 111, and the high-resistance conductive film 111 is electrically connected to the control module 200 through a first conductor 101; the pressure-variable layer 120 is located on one side of the high-resistance conductive film 111, and the pressure-variable layer 120 is electrically connected to the control module 200 through a second conductor 102; there is a gap between the conductive layer 110 and the pressure-variable layer 120 when there is no external force, and the pressure-variable layer 120 generates elastic deformation under the action of an external force to reduce the gap.

[0057] Specifically, the pressure sensing module 100 provided in this embodiment can sense external pressure. When the pressure sensing module 100 is subjected to external pressure, the gap between the conductive layer 110 and the pressure-variable layer 120 will change, thereby changing the contact area between the high-resistance conductive film 111 and the pressure-variable layer 120, and changing the electrical signal between the high-resistance conductive film 111 and the pressure-variable layer 120, thereby changing the resistance / voltage of the pressure sensing module 100. This embodiment can determine whether the pressure sensing module 100 is subjected to external pressure based on the change in resistance of the pressure sensing module 100. For example, continue to refer to Figure 1The pressure sensing module 100 provided in this embodiment can be applied to a fitness mat, and the pressure sensing module 100 can be electrically connected to the control module 200 in the fitness mat. The control module 200 includes a voltage-dividing resistor R, a voltage detection device, and a power supply. The positive electrode of the power supply is electrically connected to the high-resistance conductive film 111 through the first conductor 101. The voltage detection device is used to detect the voltage of the voltage-dividing resistor R. The voltage of the pressure sensing module 100 is determined by detecting the voltage of the voltage-dividing resistor R, thereby determining whether the pressure sensing module 100 is subjected to external pressure. The high-resistance conductive film 111 and the pressure-variable layer 120 are both conductive.

[0058] The present embodiment provides a pressure sensing module, which includes a two-layer structure, one of which is a conductive layer and the other is a piezoelectric layer. The conductive layer includes a high-resistance conductive film. The high-resistance conductive film is electrically connected to the control module through a first conductor, and the pressure-variable layer is electrically connected to the control module through a second conductor. The pressure-variable layer can be deformed under the action of an external force, thereby changing the resistance of the pressure sensing module. It can be seen that the pressure sensing module provided by the present embodiment can sense external pressure, and the number of pressure film layers provided by the present embodiment is relatively small, which can reduce the production cost of the pressure sensing module.

[0059] Optional, Figure 4 is a structural diagram of another pressure sensing module provided according to an embodiment of the utility model, Figure 5 is a schematic diagram of a structure of another conductive layer provided according to an embodiment of the utility model, referring to Figure 4 and Figure 5 The conductive layer 110 further includes a low-resistance conductive film 112 , which is attached to the surface of the high-resistance conductive film 111 away from the pressure-variable layer 120 ; the low-resistance conductive film 112 is electrically connected to the first conductor 101 .

[0060] Specifically, the low-resistance conductive film 112 is attached to the first surface of the high-resistance conductive film 111, which means that no matter whether the pressure sensing module 100 is subjected to external pressure, the low-resistance conductive film 112 is always completely in contact with the high-resistance conductive film 111. The low-resistance conductive film 112 is attached to the first surface of the high-resistance conductive film 111, and the high-resistance conductive film 111 can support the low-resistance conductive film 112, so there is no need to set up an additional support structure for the low-resistance conductive film 112, thereby reducing the manufacturing cost and the number of film layers of the pressure sensing module 100.

[0061] Optional, continue to refer to Figure 5 The low-resistance conductive film 112 is a conductive tape or a metal particle film composed of metal particles.

[0062] Specifically, the low-resistance conductive film 112 is set as a conductive tape. When manufacturing the conductive layer 110, the conductive tape can be directly attached to the high-resistance conductive film 111, thereby improving the manufacturing efficiency of the conductive layer 110, thereby improving the manufacturing efficiency of the pressure sensing module. In addition, the conductive tape has low cost, which can reduce the manufacturing cost of the pressure sensing module.

[0063] A metal particle film may be formed by spraying or printing a low-resistance conductive material on the surface of the high-resistance conductive film 111 away from the voltage-change layer.

[0064] Optional, continue to refer to Figure 3 and Figure 5 The high-resistance conductive film 111 includes a plurality of first through holes 113 ; a vertical projection of the low-resistance conductive film 112 on the high-resistance conductive film 111 does not overlap with the first through holes 113 ; a vertical projection of the pressure-variable layer 120 on the high-resistance conductive film 111 does not overlap with the first through holes 113 .

[0065] Specifically, the fitness mat may include a first cushion layer and a second cushion layer. When the pressure sensing module provided in this embodiment is applied to the fitness mat, the pressure sensing module is located between the first cushion layer and the second cushion layer of the fitness mat. A plurality of first through holes 113 are provided on the high-resistance conductive film 111. Glue may be provided in the first through holes 113. The first cushion layer and the second cushion layer are adhered to each other through the glue in the first through holes 113, thereby improving the firmness of adhesion between the first cushion layer and the second cushion layer. The vertical projection of the low-resistance conductive film 112 on the high-resistance conductive film 111 is arranged to have no overlap with the first through hole 113, and the vertical projection of the pressure-variable layer 120 on the high-resistance conductive film 111 has no overlap with the first through hole 113, thereby preventing the pressure-variable layer 120 and the low-resistance conductive film 112 from blocking the first through hole 113, thereby further improving the firmness of adhesion between the first cushion layer and the second cushion layer.

[0066] Optional, continue to refer to Figure 3 The pressure-variable layer 120 includes a first conductive strip 122 extending along a first direction X and n second conductive strips 121 arranged at intervals along the first direction X, where n is greater than or equal to 2 and is an integer; the first end of each second conductive strip 121 is electrically connected to the first conductive strip 122.

[0067] Specifically, the length of the first conductive strip 122 is greater than the length of the second conductive strip 121, and the width of the first conductive strip 122 may be equal to the width of the second conductive strip 121. In this embodiment, the pressure-variable layer 120 includes the first conductive strip 122 and a plurality of second conductive strips 121, which can increase the contact area between the pressure-variable layer 120 and the high-resistance conductive film when the pressure sensing module is subjected to external pressure, thereby increasing the resistance change of the pressure sensing module. When the pressure sensing module provided by this embodiment is applied to a fitness mat, the accuracy of the control module in detecting whether the pressure sensing module is subjected to external pressure can be further improved.

[0068] Optional, continue to refer to Figure 3 and Figure 5 , at least one first through hole 113 is included between the vertical projections of two adjacent second conductive strips 121 on the high-resistance conductive film 111 .

[0069] Specifically, when the pressure sensing module provided in this embodiment is applied to a fitness mat, at least one first through hole 113 is provided between the vertical projections of two adjacent second conductive strips 121 on the high-resistance conductive film 111, so that the first cushion layer and the second cushion layer between the two adjacent second conductive strips 121 can be adhered to each other, thereby further improving the firmness of the adhesion between the first cushion layer and the second cushion layer.

[0070] Optionally, the high-resistance conductive film is a carbon film or a semiconductor material film; and the pressure-variable layer is a metal foil.

[0071] Specifically, the material of the carbon film may include plastic and carbon powder. The metal foil may be a double-sided conductive aluminum foil or copper foil.

[0072] Optionally, when there is no external force acting on the pressure sensing module, the resistance range of the pressure sensing module is 7MΩ to 10MΩ; when there is an external force acting on the pressure sensing module, the resistance range of the pressure sensing module is 4MΩ to 5MΩ.

[0073] Specifically, the conductive layer in the pressure sensing module provided in this embodiment includes a high-resistance conductive film and no low-resistance conductive film is provided. When an external force acts on the pressure sensing module, its resistance is lower than when no external force acts on it. It can be seen that the pressure sensing module provided in this embodiment can sense external force.

[0074] Optionally, when there is no external force acting on the pressure sensing module, the resistance range of the pressure sensing module is 3MΩ to 5MΩ; when there is an external force acting on the pressure sensing module, the resistance range of the pressure sensing module is 140KΩ to 160KΩ.

[0075] Specifically, the conductive layer in the pressure sensing module provided in this embodiment includes a high-resistance conductive film and a low-resistance conductive film. When an external force acts on the pressure sensing module, its resistance is much smaller than the resistance when no external force acts on it. It can be seen that when an external force acts on the pressure sensing module provided in this embodiment, its resistance will change greatly, so that it can sensitively detect whether the pressure sensing module is subjected to an external force.

[0076] Optionally, a vertical projection of the pressure-variable layer on the high-resistance conductive film and a vertical projection of the low-resistance conductive film on the high-resistance conductive film at least partially overlap.

[0077] Specifically, the vertical projection of the pressure-variable layer on the high-resistance conductive film and the vertical projection of the low-resistance conductive film on the high-resistance conductive film can completely overlap, so that the structure and size of the pressure-variable layer and the low-resistance conductive film can be set to be the same.

[0078] Figure 6 is a schematic diagram of a fitness mat provided according to an embodiment of the utility model, with reference to Figure 6 The fitness mat provided in this embodiment includes a pressure sensing layer 300, a first cushion layer 400 and a second cushion layer 500; the pressure sensing layer 300 is located between the first cushion layer 400 and the second cushion layer 500; the pressure sensing layer 300 includes a plurality of pressure sensing modules provided in any embodiment of the utility model.

[0079] Specifically, the fitness mat provided in this embodiment can be a yoga mat, a dance mat or other fitness mat. The fitness mat includes a plurality of pressure sensing modules provided in any embodiment of the utility model, which can reduce the production cost of the fitness mat. The first cushion layer 400 and the second cushion layer 500 can be used to protect the pressure sensing module from being damaged by foreign objects. In addition, the first cushion layer 400 and the second cushion layer 500 can effectively reduce the impact force of the user on the ground during exercise, thereby reducing the impact of noise on residents downstairs, and also protecting the function of the floor.

[0080] Figure 7 is a schematic diagram of a pressure sensing layer according to an embodiment of the present utility model, referring to Figure 7 , Figure 7 The high-resistance conductive film in the pressure sensing layer 300 shown includes a plurality of first through holes, and the conductive layer 110 in the pressure sensing layer includes a high-resistance conductive film and a low-resistance conductive film, and the low-resistance conductive film is electrically connected to the first conductor 101 . Figure 8 is a schematic diagram of the structure of another pressure sensing layer provided according to an embodiment of the utility model, referring to Figure 8 , Figure 8 The high-resistance conductive film in the pressure sensing layer shown does not include a through hole, and the conductive layer 110 includes a high-resistance conductive film, which is directly electrically connected to the first conductor 101. Adjacent conductive layers 110 in the pressure sensing layer 300 can be electrically connected to each other, and they can be electrically connected by wires or by conductive tapes.

[0081] Continue to refer Figure 7 or Figure 8 The fitness mat provided in this embodiment also includes a first conductor 101, a second conductor 102 and a control module 200; the control module 200 is used to collect the electrical signal between the conductive layer 110 and the pressure-variable layer 120 in each pressure sensing module through the first conductor 101 and the second conductor 102.

[0082] Specifically, in this embodiment, the first conductor 101 and the second conductor 102 can both be wires. When the conductive layer 110 does not include a low-resistance conductive film, the second conductor 102 can be a wire, the first conductor 101 can be a wire, or the first conductor 101 includes a conductive structure and a wire, wherein the conductive structure is attached to the surface of the high-resistance conductive film away from the pressure-variable layer 120, the conductivity of the conductive structure is greater than the conductivity of the high-resistance conductive film, the shape of the conductive structure can be the same as the shape of the pressure-variable layer 120, the high-resistance conductive film is electrically connected to the conductive structure, and the conductive structure is electrically connected to the wire. The control module 200 can detect the resistance value of each pressure sensing module, thereby determining the position of the pressure sensing module subjected to external pressure. The external pressure can be the pressure of the user stepping on it.

[0083] Continue to refer Figure 7 or Figure 8 The fitness mat provided in this embodiment also includes a printed circuit board 600; each pressure-change layer 120 is located on the surface of the printed circuit board 600; the printed circuit board 600 is located on the side of the pressure-change layer 120 away from the high-resistance conductive film; each pressure-change layer 120 is electrically connected to the control module 200 through the printed circuit board 600.

[0084] Specifically, the printed circuit board 600 includes a non-woven fabric and a second conductor 102 corresponding to each pressure-variable layer 120, a first end of each second conductor 102 is electrically connected to its corresponding pressure-variable layer 120, and a second end of each second conductor 102 is electrically connected to the control module 200. The pressure-variable layer 120 can be attached to the printed circuit board 600 by conductive adhesive.

[0085] Optionally, the printed circuit board includes second through holes equal in number to the first through holes; the vertical projections of the second through holes on the first cushion layer at least partially overlap with the vertical projections of the first through holes on the first cushion layer. In this way, glue can be placed in the first through holes and the second through holes, and the first cushion layer and the second cushion layer can be adhered to each other through the glue in the first through holes and the second through holes, thereby improving the firmness of the adhesion between the first cushion layer and the second cushion layer.

[0086] Optional, Fig. 9 is a schematic diagram of the structure of another pressure sensing module provided according to an embodiment of the utility model, referring to Fig. 9 The printed circuit board is connected to the high-resistance conductive film 111 through the sewing thread 103 or the adhesive. In this way, it is unnecessary to set a through hole in the high-resistance conductive film 111 and the printed circuit board.

[0087] Optional, continue to refer to Fig. 9The vertical projection of the low-resistance conductive film 112 on the high-resistance conductive film 111 does not overlap with the sewing line 103; the vertical projection of the low-resistance conductive film 112 on the high-resistance conductive film 111 does not overlap with the adhesive; the vertical projection of the pressure-variable layer 120 on the high-resistance conductive film 111 does not overlap with the sewing line 103; the vertical projection of the pressure-variable layer 120 on the high-resistance conductive film 111 does not overlap with the adhesive. This arrangement can prevent the sewing line 103 and the adhesive from affecting the electrical signal between the high-resistance conductive film 111 and the pressure-variable layer 120.

[0088] Optionally, the first conductor and / or the second conductor is a wire.

[0089] This embodiment further provides a fitness system, which includes a terminal device and a plurality of fitness mats provided by any embodiment of the utility model, wherein the fitness mats are communicatively connected with the terminal device.

[0090] Specifically, the terminal device can be a computer, a smart phone, or a smart watch.

[0091] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0092] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pressure sensing module, characterized in that: include: Conductive layer and pressure-transformable layer; The conductive layer includes a high-resistance conductive film, and the high-resistance conductive film is electrically connected to the control module through a first conductor; The pressure-variable layer is located on one side of the high-resistance conductive film, and the pressure-variable layer is electrically connected to the control module through a second conductor; There is a gap between the conductive layer and the pressure-variable layer when no external force is applied, and the pressure-variable layer generates elastic deformation under the action of external force to reduce the gap.

2. The pressure sensing module according to claim 1, characterized in that: The conductive layer further comprises a low-resistance conductive film, and the low-resistance conductive film is attached to the surface of the high-resistance conductive film on a side away from the pressure-variable layer; The low-resistance conductive film is electrically connected to the first conductor.

3. The pressure sensing module according to claim 2, characterized in that: The low-resistance conductive film is a conductive adhesive tape or a metal particle film composed of metal particles.

4. The pressure sensing module according to claim 2, characterized in that: The high-resistance conductive film includes a plurality of first through holes; The vertical projection of the low-resistance conductive film on the high-resistance conductive film has no overlap with the first through hole; A vertical projection of the pressure-variable layer on the high-resistance conductive film does not overlap with the first through hole.

5. The pressure sensing module according to claim 4, characterized in that: The pressure-variable layer comprises a first conductive strip extending along a first direction and n second conductive strips arranged at intervals along the first direction, wherein n is greater than or equal to 2 and is an integer; The first end of each of the second conductive strips is electrically connected to the first conductive strip.

6. The pressure sensing module according to claim 5, characterized in that: Two adjacent second conductive strips include at least one first through hole between their vertical projections on the high-resistance conductive film.

7. The pressure sensing module according to claim 1, characterized in that: The high-resistance conductive film is a carbon film or a semiconductor material film; The pressure-changing layer is a metal foil.

8. The pressure sensing module according to claim 1, characterized in that: When there is no external force acting on the pressure sensing module, the resistance range of the pressure sensing module is 7MΩ to 10MΩ; When an external force acts on the pressure sensing module, the resistance range of the pressure sensing module is 4MΩ to 5MΩ.

9. The pressure sensing module according to claim 2, characterized in that: When there is no external force acting on the pressure sensing module, the resistance range of the pressure sensing module is 3MΩ to 5MΩ; When an external force acts on the pressure sensing module, the resistance range of the pressure sensing module is 140KΩ to 160KΩ.

10. The pressure sensing module according to any one of claims 2 to 6 and 9, characterized in that: A vertical projection of the pressure-variable layer on the high-resistance conductive film and a vertical projection of the low-resistance conductive film on the high-resistance conductive film at least partially overlap.

11. A fitness mat, characterized in that: It includes a pressure sensing layer, a first cushion layer and a second cushion layer; The pressure sensing layer is located between the first cushion layer and the second cushion layer; The pressure sensing layer includes a plurality of pressure sensing modules according to any one of claims 1-10.

12. The fitness mat according to claim 11, characterized in that: Also included is a first conductor, a second conductor, and a control module; The control module is used to collect the electrical signal between the conductive layer and the pressure-variable layer in each of the pressure sensing modules through the first conductor and the second conductor.

13. The fitness mat according to claim 11, characterized in that: Also included are printed circuit boards; Each of the pressure-changing layers is located on the surface of the printed circuit board; The printed circuit board is located on a side of the pressure-variable layer away from the high-resistance conductive film; Each of the voltage-change layers is electrically connected to the control module through the printed circuit board.

14. The fitness mat according to claim 13, characterized in that: The printed circuit board includes second through holes having the same number as the first through holes; A vertical projection of the second through hole on the first cushion layer at least partially overlaps with a vertical projection of the first through hole on the first cushion layer.

15. The fitness mat according to claim 13, characterized in that: The printed circuit board is connected to the high-resistance conductive film by sewing thread or adhesive; The vertical projection of the low-resistance conductive film on the high-resistance conductive film does not overlap with the sewing line; The vertical projection of the low-resistance conductive film on the high-resistance conductive film does not overlap with the adhesive; The vertical projection of the pressure-variable layer on the high-resistance conductive film does not overlap with the sewing line; A vertical projection of the pressure-variable layer on the high-resistance conductive film has no overlap with the adhesive.

16. The fitness mat according to claim 12, characterized in that: The first conductor and / or the second conductor is a wire.

17. A fitness system, characterized in that: It comprises a terminal device and a plurality of fitness mats according to any one of claims 11 to 16, wherein the fitness mat is communicatively connected with the terminal device.

Images