CN108968223B - Football shoes - Google Patents

Abstract

The invention discloses a football shoe, a shoe body and an intelligent system, wherein the shoe body comprises a vamp and a sole, the intelligent system comprises a first pressure sensor for detecting ball striking force, a second pressure sensor for detecting foot pressure, a detector for detecting acceleration of the foot during swinging, and a microprocessor for processing and calculating detected data, and the microprocessor is provided with a registering unit for storing a lowest pressure threshold value; the first pressure sensor is a flexible sensor, the first pressure sensor is arranged in the vamp, and the second pressure sensor, the detector and the microprocessor are all arranged in the sole; the output end of the first pressure sensor, the output end of the second pressure sensor and the output end of the detector are respectively and electrically connected with the corresponding input end of the microprocessor. After the structure is adopted, the shank swinging speed of the athlete during shooting can be obtained through the cooperation of the microprocessor, the two pressure sensors and the detector, namely, the instant explosive force during the sport of shooting.

Description

Football shoes

Technical Field

The present invention relates to a shoe, and more particularly to a soccer shoe.

Background

There are various types of shooting footworks in football, such as banana ball, heavy cannon ball, leaf ball, and hook ball, and the quality of a player's shot is related to the position of the player's shot, the force and the speed of the shot.

At present, intelligent football shoes for detecting hitting power during shooting training by a sporter, for example, an intelligent data acquisition system attached to various football shoes and an intelligent football shoe, an intelligent analysis system, an analysis method, a terminal and the like are researched, wherein the intelligent football shoes are respectively provided with a bulletin number of CN206714216U, an intelligent data acquisition system attached to various football shoes, a bulletin number of CN106490758A, an intelligent football shoe, an intelligent analysis system, an analysis method, a terminal and the like, and detection of shooting instant power is realized through a pressure sensor attached to a shoe body. However, the strength of the shooting explosion force is also particularly important for shooting quality, and a key factor for determining the strength of the shooting explosion force is the swing speed of the lower leg of an athlete during shooting, and the swing speed of the lower leg during shooting is not detected in football shooting training at present.

Based on this, the present inventors have conducted intensive studies on the basis of this, and have made the present invention.

Disclosure of Invention

The object of the present invention is to provide a football shoe which is able to detect the swing speed of the lower leg of an athlete when the athlete is shooting.

To achieve the above object, the solution of the present invention is:

a football shoe comprising a shoe body and an intelligent system, the shoe body comprising an upper and a sole, the upper and the sole being connected, the intelligent system comprising a first pressure sensor for detecting a ball striking force, a second pressure sensor for detecting a foot pressure, a detector for detecting an acceleration when the foot swings, and a microprocessor for processing and calculating the detected data, and the microprocessor having a first registering unit for storing a lowest pressure threshold;

the first pressure sensor is a flexible sensor, the first pressure sensor is arranged in the vamp, and the second pressure sensor, the detector and the microprocessor are all arranged in the sole; the output end of the first pressure sensor, the output end of the second pressure sensor and the output end of the detector are respectively and electrically connected with the corresponding input end of the microprocessor.

The first pressure sensor is a piezoelectric film sensor, and the piezoelectric film sensor is arranged in the interlayer of the vamp and is filled in the interlayer of the vamp.

The detector is a triaxial acceleration sensor, the intelligent system further comprises a triaxial angular velocity sensor and a triaxial electronic compass, the triaxial angular velocity sensor and the triaxial electronic compass are fixedly embedded in the sole, and an output shaft of the triaxial angular velocity sensor and an output end of the triaxial electronic compass are electrically connected with an input end of the microprocessor.

The three-axis acceleration sensor, the three-axis angular velocity sensor and the three-axis electronic compass are integrated into a whole to form a nine-axis sensor, and the microprocessor is provided with a data processing algorithm unit for converting data acquired by the nine-axis sensor into foot space motion tracks.

The microprocessor is also provided with a second registering unit for storing shooting footlaw data which are respectively matched with various foot space motion tracks.

The intelligent system also comprises a receiving terminal and a signal transceiver, wherein the microprocessor is in communication connection with the receiving terminal through the signal transceiver.

The receiving terminal is a mobile phone App or a monitoring platform.

The intelligent system further comprises a counter, and the output end of the counter is electrically connected with the input end of the microprocessor.

The sole comprises a substrate and an insole laid on the substrate, other electronic components except the first pressure sensor and the second pressure sensor in the intelligent system are fixedly embedded in an integrated shell, and the integrated shell and the second pressure sensor are installed in the substrate through a mounting structure.

The mounting structure comprises a mounting groove group and a mounting box body embedded in the mounting groove group, the mounting groove group is arranged on the substrate, and the mounting box body is matched with the mounting groove group;

the installation box body is provided with a first accommodating cavity for fixing the integrated shell, a second accommodating cavity for fixing the second pressure sensor and a communicating cavity for fixing a lead, and the first accommodating cavity and the second accommodating cavity are communicated through the communicating cavity.

After the structure is adopted, the invention has the following beneficial effects: when the player hits the ball through the vamp, the first pressure sensor detects the pressure data of the moment of hitting the ball of the player, then the pressure data are transmitted to the microprocessor for processing, the pressure value of the moment of hitting the ball of the player is obtained, then the pressure value is compared with the lowest pressure threshold value in the register unit of the microprocessor, and whether the action of the player at the moment is a shooting action or not is judged. When the microprocessor judges that the shooting action is performed, the microprocessor obtains the time from the zero pressure value (namely, the foot lifting time is zero time) transmitted by the second pressure sensor which is similar to the current shooting state time to the time when the first pressure sensor detects the pressure value, the time is recorded as the calculation time, the microprocessor obtains the acceleration data at the current time and the calculation time of the current shooting state, and then the microprocessor calculates the speed value of the current shooting time through the integration of the acceleration data and the calculation time data, so that the shank swing speed of the athlete when shooting is obtained.

Further, through the cooperation of the nine-axis sensor, the first pressure sensor and the second pressure sensor, the microprocessor can obtain the foot swing speed at the moment of shooting at the current moment and the foot space motion track from foot lifting to shooting of the athlete, and the coach can obtain the foot swing speed at the moment of shooting and the shooting foot method type corresponding to the foot swing speed, so that the coach can train the athlete pertinently by shooting explosive force of the athlete under different shooting foot method types.

Further, the microprocessor can transmit the type of the shooting footmethod and the swing speed of the lower leg at the current moment to the mobile phone App, and the user can check the type and the swing speed in the mobile phone App.

Drawings

Fig. 1 is a schematic structural view of a soccer shoe according to the present invention.

Figure 2 is an exploded view of the sole of the shoe of the present invention.

Fig. 3 is a layout of electronic components integrated in a case in the present invention.

Fig. 4 is a circuit connection diagram of the present invention.

In the figure:

10-shoe body 11-vamp

12 sole 121 base

122-insole 21-second sensor

22-microprocessor 23-signal transceiver

24-nine axis sensor 25-counter

30-Integrated housing 41-upper sheet

411-first cover 412-second cover

413-connection 42-lower sheet

421-first groove 422-second groove

423-first connecting channel 51-third groove

52-fourth groove 53-second communicating channel

Detailed Description

In order to further explain the technical scheme of the invention, the invention is explained in detail by specific examples.

1-2, a soccer shoe includes a shoe body 10 and an intelligent system mounted on the shoe body 10, the shoe body including an upper 11 and a sole 12, the upper 11 and sole 12 being bonded together in a conventional manner; the intelligent system comprises a first pressure sensor, a second pressure sensor 21, a detector and a microprocessor 22, wherein the microprocessor 22 has a first register unit storing a minimum pressure threshold.

The shoe body 10 is a conventional shoe, and the upper 11 has a sandwich layer.

A first pressure sensor, which is a flexible pressure sensor for detecting the pressure of the ball striking event, is adhered to the upper 11 in the sandwich. Preferably, to ensure that the player does not miss the pressure data during the stroke, i.e., to ensure that the pressure data is detected completely during the stroke, the first pressure sensor 21 is filled in the sandwich of the upper 11. In this embodiment, the first pressure sensor is a flexible pressure sensor, such as a piezoelectric film sensor, the flexible pressure sensor is a commercially available sensor, and the flexible pressure sensor can perform passive operation.

The second pressure sensor is embedded in the sole 12, and is used for detecting the pressure of the foot, the pressure value of the second pressure sensor 21 is zero when the athlete lifts the foot, and the pressure value of the second pressure sensor is zero when the athlete falls to the ground. A detector, which is a conventional acceleration sensor or a three-axis acceleration sensor in the present embodiment, is installed in the sole 12, and is used to detect acceleration of the player when striking the ball. A microprocessor 22 is installed in the sole, and the microprocessor 22 is used for processing and calculating data detected by the first pressure sensor, the second pressure sensor 21 and the detector.

The output end of the first pressure sensor, the output end of the second pressure sensor 21 and the output end of the detector are respectively and electrically connected with the corresponding input end of the microprocessor.

When the feet of a player strike the vamp 11 of the football shoe, the piezoelectric film sensor detects pressure data at the moment of striking the ball by the player, the pressure data are transmitted to the microprocessor 22 for processing, the pressure value of the player at the current moment is obtained, and then the pressure value is compared with the lowest pressure threshold value in the registering unit of the microprocessor 22 to judge whether the action of the player at the current moment is a shooting action. The microprocessor 22 determines two conditions: (1) If the pressure value is smaller than the lowest pressure threshold value, judging that the ball is normally passed; (2) And judging that the shooting is performed if the pressure value is greater than or equal to the lowest pressure threshold value.

When the microprocessor 22 determines the first condition, the microprocessor 22 will delete the pressure data record, the acceleration data record and the calculation time record at the current time.

When the microprocessor 22 judges the second situation, the microprocessor 22 obtains the time from the zero pressure value transmitted by the second pressure sensor 21 with the similar moment of the current shooting state (namely, the moment of lifting the foot is the zero moment) to the moment when the first pressure sensor detects the pressure value, the time is recorded as the calculation time, the microprocessor 22 obtains the acceleration data of the current moment and the calculation time of the current shooting state, and then the microprocessor 22 calculates the speed value of the current shooting moment through the integration of the acceleration data and the calculation time data, so that the swing speed of the lower leg when shooting can be obtained, and the strength of the shooting explosive force of the athlete can be known. In addition, the microprocessor 22 can also acquire the pressure value of the first pressure sensor, so as to acquire the batting force data of the shooting moment.

Preferably, the invention further comprises a receiving terminal and a signal transceiver 23, and the microprocessor 22 is in communication connection with the receiving terminal through the signal transceiver 23, so as to transmit the data processed by the microprocessor 22 to the receiving terminal for viewing. At the same time, the user may modify the data in the register unit of the microprocessor 22, such as the lowest pressure threshold, through the receiving terminal. The receiving terminal is a mobile phone App or a monitoring platform, and in this embodiment, the receiving terminal is a mobile phone App. In addition, the communication connection may be a conventional bluetooth connection, or may be another wireless connection.

Preferably, the intelligent system further comprises a three-axis angular velocity sensor and a three-axis electronic compass, wherein the three-axis angular velocity sensor and the three-axis electronic compass are fixedly embedded in the sole 12, the output ends of the three-axis angular velocity sensor and the three-axis electronic compass are respectively and electrically connected with the corresponding input ends of the microprocessor, and the three-axis angular velocity sensor, the three-axis electronic compass and the three-axis acceleration sensor are integrated into a whole to form a conventional nine-axis sensor 24. The method comprises the steps of acquiring acceleration of each moment (taking moment of a athlete lifting foot as zero point) through a triaxial acceleration sensor, calculating speed of each moment through the acceleration, then calculating motion distances of the foot on x, y and z axes of space through the speed and time, wherein the motion distances comprise motion distances of lifting the foot, leg taking and the like, acquiring motion deflection angles and deflection speeds of the foot through a triaxial angular velocity sensor and a triaxial electronic compass, calculating the motion distance of the foot in any direction through the motion distances, wherein the motion distance reacted at each moment can reflect the space height and the relative motion position of the foot, and obtaining continuous motion distance, foot height, deflection angle and deflection speed of the foot at the space position through serial connection at each moment, namely, obtaining the motion track of the foot space through serial connection at each moment. In addition, the microprocessor is provided with a data processing algorithm unit, and the data processing algorithm unit is used for processing the data detected by the nine-axis sensor 24 through a conventional Kalman filtering algorithm in the data processing algorithm unit to obtain the foot space motion trail of the athlete. Preferably, the microprocessor further comprises a second register unit for storing a plurality of shooting footage information respectively matched with the spatial motion trail of each foot. Wherein the first register unit and the second register unit constitute a register unit.

In the present invention, the nine-axis sensor 24 is sold in the market, and is commonly applied to model plane unmanned plane, robot, antenna holder, concentrating solar energy, ground and underwater equipment, virtual reality or product equipment for measuring high dynamic three-dimensional gesture such as human motion analysis.

The nine-axis sensor 24 is used to collect the data in the above calculation time and transmit the data to the data processing algorithm unit of the microprocessor 22 for processing and calculation. Specifically, when the second pressure sensor 21 detects a zero pressure value, the second pressure sensor 21 transmits the detected zero pressure value (the foot of the athlete is lifted) to the microprocessor 22, the microprocessor 22 sends a working instruction to the nine-axis sensor, the nine-axis sensor 24 starts working until the first pressure sensor detects the pressure value (when the goal is shot), the first pressure sensor transmits the detected pressure value to the microprocessor, the microprocessor 22 sends a stopping instruction to the nine-axis sensor, and then the nine-axis sensor transmits data acquired in the calculation time to a data processing algorithm unit of the microprocessor 22 for processing, so that the foot space motion track from foot lifting to goal of the athlete at the current goal shooting moment is obtained, and a user can judge the current type of the goal shooting method of the athlete through the foot space motion track.

It should be noted that, when the microprocessor 22 determines that the motion of the player at the current moment is normal pass according to the above description, the microprocessor 22 will delete the data record of the nine-axis sensor 24 in the current calculation time; if the microprocessor 22 determines that the player's current moment is a shooting action based on the foregoing, the microprocessor 22 processes and calculates the data collected by the nine-axis sensor in the manner described above.

According to the football shoe, through the cooperation of the nine-axis sensor 24 and the first pressure sensor and the second pressure sensor, the microprocessor 22 can obtain the foot swing speed at the moment of shooting at the current moment and the foot space motion track of the athlete from foot lifting to shooting, and a coach can obtain the foot swing speed at the moment of shooting and the shooting foot method type corresponding to the foot swing speed, so that the coach can train the athlete in a targeted manner on shooting explosive forces of the athlete under different shooting foot method types. Furthermore, the microprocessor 22 can transmit the shooting footage type at the current moment to the mobile phone App, where the user can view.

Preferably, the invention further comprises a power unit, wherein the output end of the power unit is electrically connected with the power input end of the microprocessor. The power supply unit may be an existing conventional rechargeable wireless power supply unit.

Preferably, the sole 12 is further embedded with a counter 25 for counting the number of shots, and an output end of the counter is electrically connected to an input end of the microprocessor. And, the count times of the counter and the foot space movement track in the microprocessor 22 are synchronously recorded in the mobile phone App.

In the present invention, this microprocessor is an existing conventional controller, such as the microcontroller model MSP 432.

In the present invention, the sole 12 includes a base 121 and an insole 122, the insole 122 is laid on the base 121 in a conventional manner, and the bottom of the sole 12 is provided with cleats. The electronic components except the first pressure sensor and the second pressure sensor in the intelligent system are all installed in an integrated housing 30, the other electronic components include the microprocessor 22, the signal transceiver 23, the nine-axis sensor 24 and the counter 25, and the microprocessor 22 is located at the central position of the integrated housing 30, and the signal transceiver 23, the nine-axis sensor 24, the counter and the power supply unit are all wound around the outside of the microprocessor 22 with the microprocessor 22 as the center. And, the microprocessor 22, the signal transceiver 23, the nine-axis sensor 24 and the counter 25 are electrically connected by wires (defined as wire one) in the manner described above, respectively. Also, the integrated housing 30 and the first pressure sensor 21 are both mounted in the base 121 by a mounting structure. The output end of the first pressure sensor 21 is electrically connected to the input end of the microprocessor 22 through a wire (defined as a wire two), i.e. one end of the wire two penetrates into the integrated housing and is electrically connected to the input end of the microprocessor 22.

The aforementioned mounting structure includes a mounting groove set and a mounting box body, the mounting groove set is disposed on the substrate 121, and the mounting box body is adapted to the shape and size of the mounting groove set. The mounting box body comprises an upper sheet 41 and a lower sheet 42 which are mutually covered, wherein the upper sheet 41 and the lower sheet which are mutually covered are uniformly arranged into a first section, a second section and a middle section; when the upper sheet 41 is detached, the lower sheet 42 is provided with a first groove 421, a second groove 422 and a first communicating channel 423, the first groove 421 and the second groove 422 are respectively and correspondingly positioned at the first section and the second section of the upper sheet 41, the first communicating channel 423 is correspondingly positioned at the middle section of the upper sheet 41, the first groove 421 and the second groove 422 are communicated together through the first communicating channel 423, the first groove 421 is matched with the integrated housing 30, the second groove 422 is matched with the second pressure sensor 21, the upper sheet 41 is provided with a first cover part 411, a second cover part 412 and a connecting part 412 for connecting the first cover part 411 and the second cover part 412, after the upper sheet 41 and the lower sheet 42 are mutually covered, a first accommodating cavity is formed between the first cover part 411 and the first groove 421, a second accommodating cavity is formed between the second cover part 412 and the second groove 421, a communicating cavity is formed between the first connecting channel 422 and the connecting part 413, the first accommodating cavity is used for fixedly embedding the integrated housing 30 in the second accommodating cavity 21 for fixedly embedding the second pressure sensor in the wire.

The installation groove group comprises a third groove 51, a fourth groove 52 and a second communication channel 53, the third groove 51 and the fourth groove 52 are communicated together through the second communication channel 53, the third groove 51 is matched with the first section of the installation box body 40, the fourth groove 52 is matched with the second section of the installation box body 40, the second communication channel 53 is matched with the middle section of the installation box body 40, the third groove 51 is used for the first section to be embedded in, the fourth groove 52 is used for the second section to be embedded in, the second communication channel 53 is used for the middle section to be embedded in, and therefore the installation box body 40 can be fixedly embedded in the installation groove group. Preferably, to ensure wear comfort, a smooth transition is provided between the upper surface of the mounting case and the upper surface of the base 12.

According to the football shoe, the electronic components except the first pressure sensor are conveniently and respectively arranged in the mounting box body through the arrangement of the mounting box body and the mounting groove group, the electronic components in the embodiment comprise the first pressure sensor, the second pressure sensor, the microprocessor 22, the power supply unit, the nine-axis sensor and the counter, and the mounting box body is embedded in the base 12 of the sole 12, so that after a player wears the football shoe, the comfort of the football shoe is not affected, and the electronic components are hidden in the football shoe, so that the overall aesthetic property of the football shoe is not affected.

The working process of the invention is as follows: taking a primary shooting as an example, firstly, opening a mobile phone Bluetooth for connection operation, and connecting a signal transceiver with a mobile phone App Bluetooth; then putting on football shoes to walk, opening an intelligent system in a mobile phone App, transmitting an activating signal to a microprocessor 22 through a signal transceiver 23, triggering the microprocessor 22 to start the electronic components, then when the feet of the athlete lift the feet, the microprocessor 22 receives a zero pressure value detected by a second pressure sensor 21, transmits a working instruction to a nine-axis sensor 24 to start working, and the microprocessor 22 starts timing, until the athlete touches the ball and shoots a gate, the first pressure sensor transmits the detected pressure value to the microprocessor, the microprocessor transmits a stopping instruction to the nine-axis sensor 24 to stop working, and meanwhile, the microprocessor 22 stops timing, at the moment, the microprocessor 22 compares the pressure value detected by the first pressure sensor with the lowest pressure threshold in a register unit to judge whether the action of the athlete is a shooting action, when the action is judged to be the shooting action, a counter 25 counts, and the microprocessor processes and calculates data transmitted by the three-axis acceleration sensor in the nine-axis sensor to obtain the swinging speed at the moment, and also obtains the pressure value detected by the first pressure sensor 24 when the athlete touches the ball and shoots the gate, and the foot, namely, the data of the foot is transmitted by the foot-swing speed sensor and the foot-swing speed sensor is corresponding to a foot-swing motion track of the mobile phone, and a foot-contact motion track is processed by a foot-contact space and a wireless motion track, and a foot-contact-time transmission method, and a foot-contact motion type is obtained, and a foot-swing motion track is obtained, and a foot swing motion type is used. If the athlete does not act as a shooting action, the microprocessor deletes the data acquired by the nine-axis sensor and the data acquired by the first pressure sensor and the second pressure sensor in the calculation time.

The microprocessor automatically filters out the unstable pressure value detected by the first pressure sensor, the unstable acceleration value detected by the nine-axis sensor 24 and the type of shooting footfall that cannot be identified, and also filters out the count associated with each unstable or unidentifiable data.

In addition, the mobile phone App is provided with data records of the left football shoe and the right football shoe.

The foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications that come within the scope of the following claims are intended to be embraced therein.

Claims (10)

1. The utility model provides a football shoe, includes shoes body and intelligent system, shoes body includes vamp and sole, the vamp with the sole is connected, its characterized in that: the intelligent system comprises a first pressure sensor for detecting the ball striking force, a second pressure sensor for detecting the foot pressure, a detector for detecting the acceleration of the foot when swinging, and a microprocessor for processing and calculating the detected data, wherein the microprocessor is provided with a first registering unit for storing the lowest pressure threshold value;

the first pressure sensor is a flexible sensor, the first pressure sensor is arranged in the vamp, and the second pressure sensor, the detector and the microprocessor are all arranged in the sole; the output end of the first pressure sensor, the output end of the second pressure sensor and the output end of the detector are respectively and electrically connected with the corresponding input end of the microprocessor;

when the player hits the ball through the vamp, the first pressure sensor detects the pressure data of the moment when the player hits the ball, then the pressure data are transmitted to the microprocessor for processing, the pressure value of the moment when the player hits the ball is obtained, then the pressure value is compared with the lowest pressure threshold value in the first register unit of the microprocessor, and whether the action of the player at the moment is a shooting action or not is judged; when the microprocessor judges that the shooting action is performed, the microprocessor obtains the time from the zero pressure value transmitted by the second pressure sensor, which is similar to the current shooting state, to the time when the first pressure sensor detects the pressure value, the time is recorded as the calculation time, the microprocessor obtains the acceleration data at the current moment and the calculation time of the current shooting state, and then the microprocessor calculates the speed value of the current shooting moment through the integration of the acceleration data and the calculation time data.

2. A football shoe according to claim 1, wherein: the first pressure sensor is a piezoelectric film sensor, and the piezoelectric film sensor is arranged in the interlayer of the vamp and is filled in the interlayer of the vamp.

3. A football shoe according to claim 1, wherein: the detector is a triaxial acceleration sensor, the intelligent system further comprises a triaxial angular velocity sensor and a triaxial electronic compass, the triaxial angular velocity sensor and the triaxial electronic compass are fixedly embedded in the sole, and an output shaft of the triaxial angular velocity sensor and an output end of the triaxial electronic compass are electrically connected with an input end of the microprocessor.

4. A football shoe according to claim 3, wherein: the three-axis acceleration sensor, the three-axis angular velocity sensor and the three-axis electronic compass are integrated into a whole to form a nine-axis sensor, and the microprocessor is provided with a data processing algorithm unit for converting data acquired by the nine-axis sensor into foot space motion tracks.

5. A football shoe according to claim 4, wherein: the microprocessor is also provided with a second registering unit for storing shooting footlaw data which are respectively matched with various foot space motion tracks.

6. A football shoe according to claim 1, wherein: the intelligent system also comprises a receiving terminal and a signal transceiver, wherein the microprocessor is in communication connection with the receiving terminal through the signal transceiver.

7. A football shoe as claimed in claim 6, wherein: the receiving terminal is a mobile phone App or a monitoring platform.

8. A football shoe according to claim 1, wherein: the intelligent system further comprises a counter, and the output end of the counter is electrically connected with the input end of the microprocessor.

9. A football shoe according to any one of claims 1 to 8, wherein: the sole comprises a substrate and an insole laid on the substrate, other electronic components except the first pressure sensor and the second pressure sensor in the intelligent system are fixedly embedded in an integrated shell, and the integrated shell and the second pressure sensor are installed in the substrate through a mounting structure.

10. A football shoe according to claim 9, wherein: the mounting structure comprises a mounting groove group and a mounting box body embedded in the mounting groove group, the mounting groove group is arranged on the substrate, and the mounting box body is matched with the mounting groove group;

the installation box body is provided with a first accommodating cavity for fixing the integrated shell, a second accommodating cavity for fixing the second pressure sensor and a communicating cavity for fixing a lead, and the first accommodating cavity and the second accommodating cavity are communicated through the communicating cavity.