An intelligent small shaft pressure sensor and system

Abstract

The present invention provides an intelligent small-axis pressure sensor and system, wherein the intelligent small-axis pressure sensor comprises an elastic body, wherein the elastic body comprises a force-bearing surface and a deformation surface perpendicular to the force-bearing surface, and a plurality of patches are evenly arranged on the deformation surface; a first rod connecting portion and a second rod connecting portion are respectively arranged on two opposite force-bearing surfaces of the elastic body, wherein the first rod connecting portion and the second rod connecting portion are used to realize connection with an external rod, and make the rod coaxial with the force-bearing surface, so that the intelligent small-axis pressure sensor is subjected to axial force, and can truly monitor the force condition of the rod, thereby solving the problem that the original measuring device is eccentrically connected and the measurement result is inaccurate.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, and in particular to an intelligent small-axis pressure sensor and system. Background Art

[0002] As construction technology becomes more complex and difficult, and the unit project volume becomes larger and larger, the requirements for tall formwork during the construction process are getting higher and higher. Therefore, monitoring of the frame becomes particularly important to ensure safety during the construction process. Summary of the invention

[0003] In view of this, the present invention provides an intelligent small axial pressure sensor and system, which solves the problem of eccentric connection between the sensor and the rod.

[0004] The first aspect of the present invention provides an intelligent small-axis pressure sensor, which includes an elastomer, which includes a force-bearing surface and a deformation surface perpendicular to the force-bearing surface, and a plurality of patches are evenly arranged on the deformation surface; a first rod connecting portion and a second rod connecting portion are respectively arranged on two opposite force-bearing surfaces of the elastomer, and the first rod connecting portion and the second rod connecting portion are used to achieve connection with an external rod, and make the rod coaxial with the force-bearing surface, so that the intelligent small-axis pressure sensor is subjected to axial force.

[0005] Preferably, the intelligent small-axis pressure sensor according to claim 1 is characterized in that: the elastic body is a cylindrical elastic body, the two end faces of the cylindrical elastic body are respectively the first force-bearing face and the second force-bearing face, and the side face of the cylindrical elastic body is the deformation face;

[0006] The first rod connecting portion is a first through hole disposed inside the elastic body, the first through hole is coaxial with the elastic body, and the first through hole extends from the first force-bearing surface to the inside of the elastic body and extends to the end surface of the second force-bearing surface;

[0007] The second rod connecting portion is a second through hole opened on the second force-bearing surface, the second through hole extends from the second force-bearing surface to the inside of the elastic body, and the second through hole is coaxial with the first through hole and the elastic body;

[0008] The diameter of the second through hole is greater than the diameter of the first through hole.

[0009] Preferably, the intelligent small axial pressure sensor comprises a shell, the shell is a cylindrical body with a hollow interior, and the elastic body is sleeved inside the shell;

[0010] The elastic body also includes a first clamping portion fixedly connected to the shell, and a second clamping portion matching the first clamping portion is disposed inside the shell.

[0011] Preferably, the first clamping portion is a circle of annular protrusions arranged on the side of the elastic body, the annular protrusions are arranged on the side of the upper end and / or the lower end of the elastic body, and the first clamping portion is integrally arranged with the elastic body; the second clamping portion is a circle of annular protrusions arranged on the inner side of the shell, which is arranged opposite to the annular protrusions arranged on the elastic body, and the second clamping portion is integrally arranged with the shell;

[0012] The outer diameter of the first clamping portion is equal to the inner diameter of the second clamping portion.

[0013] Preferably, a plurality of patch mounting grooves are evenly arranged on the outer surface at the center of the elastic body, and patches are mounted in the patch mounting grooves.

[0014] Preferably, the patch comprises:

[0015] A dual-axis inclination sensor, the dual-circumference inclination sensor is used to sense the deformation of the elastic body;

[0016] an A / D converter connected to the dual-axis tilt sensor, the A / D converter receiving the deformation amount sensed by the dual-axis tilt sensor and converting the deformation amount into a voltage value; and

[0017] A central control module connected to the A / D converter, the central control module receives the output value of the A / D converter and processes the output value

[0018] Preferably, a communication module may also be connected to the patch, and the communication module is connected to the central control module to realize the connection between the central control unit and an external device.

[0019] Preferably, the patch also includes a power module, which is respectively connected to the dual-axis inclination sensor, A / D converter, central control module and communication module to provide power for the dual-axis inclination sensor, A / D converter, central control module and communication module.

[0020] The second aspect of the present invention provides an intelligent small-axis pressure sensor system, which includes an intelligent small-axis pressure sensor, a wireless communication module connected to the intelligent small-axis pressure sensor, and a cloud server. The intelligent small-axis pressure sensor includes an elastomer, which includes a force-bearing surface and a deformation surface perpendicular to the force-bearing surface. A plurality of patches are evenly arranged on the deformation surface. After the force-bearing surface of the elastomer is subjected to force, the elastomer will deform. The patches sense the deformation of the elastomer, convert the deformation into a pressure value, and transmit the pressure value to the cloud server for storage.

[0021] Preferably, the intelligent small-axis pressure sensor system further includes a client, and the client communicates with the cloud server to display data measured by the intelligent small-axis pressure sensor.

[0022] The advantages and positive effects of the present invention are as follows: on the one hand, the present invention provides an intelligent small-axis pressure sensor, which can connect a rod to the intelligent small-axis pressure sensor coaxially. The connection method is that the axial force of the intelligent small-axis pressure sensor is subjected to axial force, and the force condition of the rod can be truly monitored, which solves the problem that the original measuring device is eccentrically connected and the measurement result is inaccurate, and the axial force is represented by voltage, and the axial pressure of the rod is digitized; on the other hand, the present invention provides an intelligent small-axis pressure sensor system, which shares the pressure value measured by the intelligent small-axis pressure sensor with the client through a cloud server. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a cube-shaped elastic body of the intelligent small axial pressure sensor of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the cylindrical elastic body of the intelligent small axial pressure sensor of the present invention;

[0025] Figure 3 It is a schematic diagram of the force structure of the elastic body of the cylinder of the intelligent small axial pressure sensor of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the intelligent small shaft pressure sensor of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the first clamping part of the cylindrical elastic body of the intelligent small axial pressure sensor of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the mutual cooperation between the intelligent small axial pressure sensor and the rod member of the present invention;

[0029] Figure 7 It is a structural schematic diagram of a patch of the intelligent small-axis pressure sensor of the present invention;

[0030] Figure 8 It is a circuit schematic diagram of the central control module of the intelligent small shaft pressure sensor of the present invention;

[0031] Fig. 9 It is a circuit principle diagram of the A / D converter of the intelligent small-axis pressure sensor of the present invention;

[0032] Fig.10 It is a circuit schematic diagram of a dual-axis tilt sensor of the intelligent small-axis pressure sensor of the present invention;

[0033] Fig.11 It is a circuit schematic diagram of the communication module of the intelligent small shaft pressure sensor of the present invention;

[0034] Fig.12 It is a circuit schematic diagram of a power module of the intelligent small-axis pressure sensor of the present invention;

[0035] Fig.13 is a structural block diagram of the intelligent small shaft pressure sensor system of the present invention;

[0036] Fig.14 It is a specific structural block diagram of the intelligent small-axis pressure sensor system of the present invention. DETAILED DESCRIPTION

[0037] In order to better understand the present invention, the present invention is further described below in conjunction with specific embodiments and drawings.

[0038] The present invention provides an intelligent small shaft pressure sensor, such as Figure 1 and Figure 2 As shown, the intelligent small-axis pressure sensor includes an elastomer 10, and the elastomer 10 includes a force-bearing surface 101 and a deformation surface 102 perpendicular to the force-bearing surface 101. A plurality of patches 20 are evenly arranged on the deformation surface 102. After the force-bearing surface 101 of the elastomer 10 is subjected to force, the elastomer 10 will deform. The patches 20 sense the deformation amount of the elastomer 10 and convert the deformation amount into a pressure value.

[0039] Specifically, during the use of the intelligent small-axis pressure sensor, the force surface 101 of the elastomer 10 is perpendicular to the direction of the external force, that is, the direction of the external force is the axial direction of the central axis 103 of the elastomer 10; the force surface 101 of the elastomer 10 receives the external force, and the elastomer 10 will deform under the action of the external force, specifically, the deformation surface 102 arranged perpendicular to the force surface 101 will deform, and the deformation amount will be sensed by the patch 20 arranged on the deformation surface 101, and the patch 20 senses the deformation amount of the elastomer 10 and converts the deformation amount into a pressure value, thereby realizing the measurement of the force on the elastomer 10.

[0040] The elastic body may be a cylinder, a cube, or a cuboid, and its shape does not constitute a limitation to the present invention.

[0041] Figure 1 A schematic diagram showing that the elastic body is a cube is shown. When the elastic body is a cube, any two opposite faces serve as force-bearing faces, and the remaining faces serve as deformation faces.

[0042] In one embodiment of the present invention, the elastic body 10 is a cylindrical elastic body, such as Figure 2 and Figure 3 As shown, the end face of the cylindrical elastic body is a force-bearing surface 101, and the side face of the cylindrical elastic body is a deformation surface 102; a plurality of patches 20 are evenly arranged on the side face of the elastic body, that is, the deformation surface 102, and the elastic body 10 is deformed by force, and the patches 20 sense the deformation amount of the elastic body 10 and convert the deformation amount into a pressure value. Specifically, when the force-bearing surface 101 of the elastic body 10 is subjected to a force perpendicular to the force-bearing surface 101, that is, along the direction of the central axis 103 of the elastic body 10, the elastic body 10 will deform under the action of the force, which is specifically reflected in that the side face of the elastic body 10, that is, the deformation surface 102, will deform, and the deformation amount will be sensed by the patches 20 arranged on the outer surface of the elastic body 10, and the patches 20 sense the deformation amount of the elastic body and convert the deformation amount into a pressure value, thereby realizing the measurement of the force on the elastic body.

[0043] Furthermore, if Figures 4 to 6 As shown, a first rod connecting portion 105 and a second rod connecting portion 106 are respectively provided on two opposite force-bearing surfaces 101 of the elastic body 10, and the first rod connecting portion 105 and the second rod connecting portion 105 are used to realize connection with an external rod and make the rod coaxial with the force-bearing surface, so that the intelligent small axial pressure sensor is subjected to axial force.

[0044] The two end faces of the elastomer 10 are respectively a first force-bearing face 1011 and a second force-bearing face 1012; the first rod connecting portion 105 is a first through hole arranged inside the elastomer 10, the first through hole is coaxial with the elastomer, and the first through hole extends from the first force-bearing face to the inside of the elastomer, extending all the way to the end face of the second force-bearing face 1012; the second rod connecting portion 106 is a second through hole opened on the second force-bearing face 1012, the second through hole extends from the second force-bearing face to the inside of the elastomer 10, and the second through hole is coaxial with the first through hole and the elastomer; the diameter of the second through hole is larger than the diameter of the first through hole.

[0045] During the use of the intelligent small-axis pressure sensor, the rod 50 to be detected is connected to the intelligent small-axis pressure sensor, and the first rod 501 is connected to the first rod connecting portion 105. Specifically, the first rod 501 is sleeved inside the first rod connecting portion 105, and one end of the first rod 501 and the first rod connecting portion 105 is sleeved with a first sleeve portion 5011 and a first limiting portion 5012. The diameter of the first sleeve portion 5011 matches the inner diameter of the first rod connecting portion 105. The first sleeve portion 5011 is sleeved inside the first rod connecting portion 105 and is limited by the first limiting portion 5012 to prevent the first rod 501 from extending wirelessly inside the elastomer; the second rod 502 is connected to the second rod connecting portion 106. Specifically, the second rod 502 is sleeved inside the second rod connecting portion 106. The second rod 502 A second sleeve portion 5021 is provided, and a second limiting portion 1061 is further provided inside the second rod connecting portion 106 , and the second limiting portion prevents the second rod 502 from extending unrestrictedly inside the elastic body.

[0046] The first rod 501 and the second rod 502 are connected to the elastomer through the first rod connecting portion 105 and the second rod connecting portion 106 respectively. Because the first rod connecting portion 105 and the second rod connecting portion 106 are coaxial with the elastomer 10, the first rod 501 and the second rod 502 are coaxial with the elastomer 10, so that the axial force of the intelligent small axial pressure sensor can truly monitor the force condition of the rod, thereby solving the problem of eccentric connection of the original measuring device and inaccurate measurement results.

[0047] Furthermore, the first rod connecting portion 105 and the first sleeve portion 5011 , as well as the second rod connecting portion 106 and the second sleeve portion 5021 are connected via threads.

[0048] Furthermore, if Figure 4 and Figure 5 As shown, in this embodiment, the intelligent small axial pressure sensor includes a housing 30 , and the housing 30 is a cylindrical body with a hollow interior. The elastic body 10 is sleeved inside the housing 30 .

[0049] Furthermore, the elastic body 10 further includes a first clamping portion 104 fixedly connected to the housing 30 , and a second clamping portion 301 matching the first clamping portion 104 is disposed inside the housing 30 .

[0050] Specifically, the first clamping portion 104 is a circle of annular protrusions arranged on the side of the elastic body 10, the annular protrusions are arranged on the side of the upper end and / or the lower end of the elastic body 10, and the first clamping portion 104 is integrally arranged with the elastic body 10; the second clamping portion 301 is a circle of annular protrusions arranged on the inner side of the shell 30, which is arranged opposite to the annular protrusions arranged on the elastic body 10, and the second clamping portion 301 is integrally arranged with the shell 30. Further, the outer diameter of the first clamping portion 104 is equal to the inner diameter of the second clamping portion 301. The outer diameter of the first clamping portion 104 is equal to the inner diameter of the second clamping portion 301, so that the outer diameter of the first clamping portion 104 and the second clamping portion 30 are clamped.

[0051] Furthermore, the second clamping portion 301 of the shell 30 is provided with a fixing hole 302 arranged opposite to the first clamping portion 104, and the fixing hole 302 extends outward from the inner wall of the first clamping portion 104 to the outer surface of the shell 30. A fixing bolt is provided in the fixing hole 302 for achieving a fixed connection between the elastic body 10 and the shell 30.

[0052] The fixing bolts are used to fix the shell 30 and the elastic body 10 so that the elastic body 10 is fixed inside the shell 30 , thereby preventing the elastic body 10 from being displaced relative to the shell 30 under the action of external pressure and preventing the elastic body 10 from being separated from the protection of the shell 30 .

[0053] In this embodiment, the elastic body is sleeved inside the housing, wherein the first clamping portion and the second clamping portion are arranged opposite to each other, so as to achieve preliminary fixation of the elastic body in the housing; further, the fixing bolt is screwed into the fixing hole to achieve further fixation of the elastic body. A plurality of fixing holes are evenly arranged axially on the housing to achieve uniform force on the elastic body.

[0054] Furthermore, a plurality of patch mounting grooves 40 are evenly arranged at the center position of the side surface of the elastic body 10 , and the patches 20 are mounted in the patch mounting grooves 40 .

[0055] Furthermore, if Figure 6 As shown, the patch 20 includes a dual-axis tilt sensor 201, an A / D converter 202 connected to the dual-axis tilt sensor 201, and a central control module 203 connected to the A / D converter 202. The dual-axis tilt sensor 201 is used to sense the deformation of the elastomer 10 and transmit the deformation to the A / D converter 202. The A / D converter 202 receives the deformation sensed by the dual-axis tilt sensor 201 and converts the deformation into a voltage value, and then transmits the voltage value to the central control module 203. The central control module 203 receives the output value of the A / D converter 202 and processes the output value.

[0056] In a preferred embodiment of the present invention, Figures 7 to 9 As shown, the central control module uses STM32F103C8, the dual-axis tilt sensor uses SCA100T, and the A / D converter uses LTC1865. The data input terminal MOSI and the data output terminal MISO of the dual-axis tilt sensor SCA100T are respectively connected to PA7 and PA6 of the central control module STM32F103C8 to realize data transmission between the dual-axis tilt sensor SCA100T and the central control module STM32F103C8, the chip select terminal CSB of the dual-axis tilt sensor SCA100T is connected to PA4 of the central control module STM32F103C8 to realize the selection of the dual-axis tilt sensor SCA100T, the clock input terminal SCK of the dual-axis tilt sensor SCA100T is connected to PA5 of the central control module STM32F103C8 to input a clock signal for the dual-axis tilt sensor SCA100T; the dual-axis tilt sensor S The X-axis output OUT-1 and the Y-axis output OUT-2 of CA100T are respectively connected to the analog input terminals CH0 and CH1 of the A / D converter LTC1865, and the analog signal of the dual-axis inclination sensor SCA100T is input to the A / D converter LTC1865. The data input terminal SDI and the data output terminal SDO of the A / D converter LTC1865 are respectively connected to the PB11 and PB10 of the central control module STM32F103C8, so as to realize data transmission between the central control module STM32F103C8. In addition, the clock signal input terminal of the A / D converter LTC1865 is connected to the PB9 of the central control module STM32F103C8, and the clock signal is input to the A / D converter LTC1865.

[0057] Furthermore, if Fig.10As shown, the patch 20 may also be connected to a communication module 204 , and the communication module 204 is connected to the central control module 203 to implement data transmission between the central control module 203 and an external device.

[0058] The communication module can be a wireless communication module and / or a wired communication module. In one embodiment of the present invention, the communication module is a 485 communication module. Specifically, the 485 communication module uses chip SP3485. The driving input terminal DI and the receiving output terminal RO of the 485 communication module SP3485 are respectively connected to PA9 and PA8 of the central control module STM32F103C8 to realize data transmission between the central control module STM32F103C8 and the 485 communication module SP3485. The driver output / receiver input terminals A and B of the 485 communication module SP3485 are connected to an external device to realize data transmission between the external device and the 485 communication module SP3485.

[0059] The 485 communication module is connected to the transmission line. Furthermore, the housing 30 is provided with a threading hole 303 for the transmission line to pass through, so as to facilitate data transmission between the patch 20 and external equipment.

[0060] In another embodiment of the present invention, the communication module may also be a wireless communication module, through which remote data transmission may be achieved.

[0061] Furthermore, if Fig.11 As shown, the patch 20 also includes a power module 205, which is respectively connected to the dual-axis inclination sensor 201, the A / D converter 202, the central control module 203 and the communication module 204 to provide power for the dual-axis inclination sensor 201, the A / D converter 202, the central control module 203 and the communication module 204.

[0062] When the elastomer of the present invention is subjected to external pressure, the force-bearing surface of the elastomer will receive an axial pressure, and the elastomer will deform under the action of the pressure. Specifically, a deformation surface arranged perpendicular to the force-bearing surface will deform, and the deformation amount will be sensed by a patch arranged on the deformation surface. The patch senses the deformation amount of the elastomer and converts the deformation amount into a pressure value, thereby realizing the measurement of the force on the elastomer.

[0063] Specifically, the patch includes a dual-axis inclination sensor, an A / D converter connected to the dual-axis inclination sensor, and a central control module connected to the A / D converter. The dual-axis inclination sensor is used to sense the deformation of the elastomer and transmit the deformation to the A / D converter. The A / D converter receives the deformation sensed by the dual-axis inclination sensor and converts the deformation into a voltage value, which is then transmitted to the central control module. The central control module receives the output value of the A / D converter and processes the output value.

[0064] During the use of the intelligent small-axis pressure sensor of the present invention, the first rod 501 and the second rod 502 are connected to the elastomer through the first rod connecting portion 105 and the second rod connecting portion 106 respectively. Because the first rod connecting portion 105 and the second rod connecting portion 106 are coaxial with the elastomer 10, the first rod 501 and the second rod 502 are coaxial with the elastomer 10, and the cross-sections of the first rod 501 and the second rod 502 are respectively attached to the first force-bearing surface and the second force-bearing surface of the intelligent small-axis pressure sensor. When the cross-sections of the first rod and the second rod are subjected to force, the force will be transmitted to the elastomer, and the elastomer will be deformed under the force, and then the patch senses the force and converts the force into a voltage value, thereby realizing the measurement of the force.

[0065] Furthermore, the present invention also provides an intelligent small shaft pressure sensor system, such as Fig.14 As shown, the intelligent small-axis pressure sensor system includes an intelligent small-axis pressure sensor, a wireless communication module connected to the intelligent small-axis pressure sensor, and a cloud server 60. The intelligent small-axis pressure sensor includes an elastomer, and the elastomer includes a force-bearing surface and a deformation surface perpendicular to the force-bearing surface. A plurality of patches are evenly arranged on the deformation surface. After the force-bearing surface of the elastomer is subjected to force, the elastomer will deform. The patch senses the deformation amount of the elastomer, converts the deformation amount into a pressure value, and transmits the pressure value to the cloud server for storage. The user can access the cloud server at any time to read the data.

[0066] Specifically, the patch 20 includes a dual-axis inclination sensor 201, an A / D converter 202 connected to the dual-axis inclination sensor 201, and a central control module 203 connected to the A / D converter 202. The dual-axis inclination sensor 201 is used to sense the deformation of the elastomer 10 and transmit the deformation to the A / D converter 202. The A / D converter 202 receives the deformation sensed by the dual-axis inclination sensor 201 and converts the deformation into a voltage value, and then transmits the voltage value to the central control module 203. The central control module 203 receives the output value of the A / D converter 202 and processes the output value.

[0067] The patch 20 may also be connected to a communication module 204 , which is connected to the central control module 203 to implement data transmission between the central control module 203 and an external device.

[0068] The patch 20 also includes a power module 205, which is connected to the dual-axis tilt sensor 201, the A / D converter 202, the central control module 203 and the communication module 204 respectively to provide power for the dual-axis tilt sensor 201, the A / D converter 202, the central control module 203 and the communication module 204.

[0069] In this embodiment, the communication module 204 is a wireless communication module, and the central control module 203 communicates with the cloud server 60 through the wireless communication module. The central control module 203 transmits the measurement data to the cloud server 60 for storage, and can send instructions to the central control module 203 through the cloud server 60.

[0070] Furthermore, the intelligent small-axis pressure sensor system further includes a client 70 , and the client 70 communicates with the cloud server 60 to display data measured by the intelligent small-axis pressure sensor.

[0071] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. An intelligent small-axis pressure sensor, characterized in that: The intelligent small-axis pressure sensor comprises an elastic body, the elastic body comprises a force-bearing surface and a deformation surface perpendicular to the force-bearing surface, and a plurality of patches are evenly arranged on the deformation surface; a first rod connecting part and a second rod connecting part are respectively arranged on two opposite force-bearing surfaces of the elastic body, the first rod connecting part and the second rod connecting part are used to realize connection with an external rod, and make the rod coaxial with the force-bearing surface, so that the axial force of the intelligent small-axis pressure sensor is applied; the elastic body is a cylindrical elastic body, the two end surfaces of the cylindrical elastic body are respectively the first force-bearing surface and the second force-bearing surface, and the side surface of the cylindrical elastic body is the deformation surface; The first rod connecting portion is a first through hole disposed inside the elastic body, the first through hole is coaxial with the elastic body, and the first through hole extends from the first force-bearing surface to the inside of the elastic body and extends to the end surface of the second force-bearing surface; The second rod connecting portion is a second through hole opened on the second force-bearing surface, the second through hole extends from the second force-bearing surface to the inside of the elastic body, and the second through hole is coaxial with the first through hole and the elastic body; The diameter of the second through hole is greater than the diameter of the first through hole.

2. The intelligent small-axis pressure sensor according to claim 1 is characterized in that: The intelligent small axial pressure sensor comprises a shell, which is a cylindrical body with a hollow interior, and the elastic body is sleeved inside the shell; The elastic body also includes a first clamping portion fixedly connected to the shell, and a second clamping portion matching the first clamping portion is disposed inside the shell.

3. The intelligent small-axis pressure sensor according to claim 2 is characterized in that: The first clamping portion is a circle of annular protrusions arranged on the side of the elastic body, the annular protrusions are arranged on the side of the upper end and / or the lower end of the elastic body, and the first clamping portion is integrally arranged with the elastic body; the second clamping portion is a circle of annular protrusions arranged on the inner side of the shell, which is arranged opposite to the annular protrusions arranged on the elastic body, and the second clamping portion is integrally arranged with the shell; The outer diameter of the first clamping portion is equal to the inner diameter of the second clamping portion.

4. The intelligent small-axis pressure sensor according to claim 2 is characterized in that: The outer surface of the elastic body at the center position is evenly provided with a plurality of patch mounting grooves, and patches are mounted in the patch mounting grooves.

5. The intelligent small-axis pressure sensor according to claim 4 is characterized in that: The patch includes: a dual-axis tilt sensor, the dual-axis tilt sensor is used to sense the deformation amount of the elastic body; An A / D converter connected to the dual-axis inclination sensor, the A / D converter receives the deformation amount sensed by the dual-axis inclination sensor and converts the deformation amount into a voltage value; and a central control module connected to the A / D converter, the central control module receives the output value of the A / D converter and processes the output value.

6. The intelligent small-axis pressure sensor according to claim 5, characterized in that: The patch may also be connected to a communication module, which is connected to the central control module to achieve connection between the central control unit and an external device.

7. The intelligent small-axis pressure sensor according to claim 6, characterized in that: The patch also includes a power module, which is connected to the dual-axis tilt sensor, A / D converter, central control module and communication module respectively to provide power for the dual-axis tilt sensor, A / D converter, central control module and communication module.

8. An intelligent small-axis pressure sensor system, characterized in that: The intelligent small-axis pressure sensor system includes an intelligent small-axis pressure sensor, a wireless communication module connected to the intelligent small-axis pressure sensor, and a cloud server. The intelligent small-axis pressure sensor includes an elastomer, which includes a force-bearing surface and a deformation surface perpendicular to the force-bearing surface. A plurality of patches are evenly arranged on the deformation surface. After the force-bearing surface of the elastomer is subjected to force, the elastomer will deform. The patches sense the deformation of the elastomer, convert the deformation into a pressure value, and transmit the pressure value to the cloud server for storage.

9. The intelligent small-axis pressure sensor system according to claim 8, characterized in that: The intelligent small-axis pressure sensor system also includes a client, and the client communicates with the cloud server to display data measured by the intelligent small-axis pressure sensor.

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