CN112245895B

CN112245895B - Electronic protective tool based on gyroscope

Info

Publication number: CN112245895B
Application number: CN202011073357.4A
Authority: CN
Inventors: 金星辉
Original assignee: 金星辉
Current assignee: Xingyun Hengyu (Beijing) International Sports Technology Development Co.,Ltd.
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-15
Anticipated expiration: 2040-10-09
Also published as: CN112245895A

Abstract

The invention is suitable for the technical field of sports goods, and provides an electronic protector based on a gyroscope, which comprises: bottom plate, PCB board, MCU, gyroscope, buffer layer and protective layer. The basic principle of the invention is that two gyroscopes are used for detecting position coordinates of attack, one gyroscope is used for detecting attack strength, and attack position and attack strength are calculated and solved through MCU; in a further scheme, the pressure sensing pad is increased to obtain an attack area. According to the invention, the gyroscope is directly contacted with the PVC base plate, so that vibration conduction is carried out to the maximum extent; through evenly arranging many gyroscopes on the bottom plate, the forced induction pad is located the protective layer below. The gyroscope detection scheme has the advantages of strong anti-interference capability and output value related to impact force; according to the invention, the gyroscope and the pressure sensing pad are matched with the detection scheme, so that attack area data are further acquired, and multidimensional analysis and evaluation on the hitting power and the hitting effect are realized.

Description

Electronic protective tool based on gyroscope

Technical Field

The invention belongs to the technical field of sports goods, and particularly relates to an electronic protective tool based on a gyroscope.

Background

The protector is a protective device which is worn in fighting projects (such as taekwondo, free combat and the like) and is needed to ensure the safety of both athletes. Most of fighting games adopt traditional protectors with single functions and simple structures, and the protectors can only provide single protection for athletes, but cannot quantify fighting data. The score of the fighting exercise is the striking force and the striking frequency, the striking force is the accurate data which is difficult to obtain through the subjective judgment of the judge, meanwhile, effective striking can be performed only when the striking force reaches the specified threshold, but the striking frequency is difficult to accurately calculate due to the inaccurate characteristic brought by the subjectivity of the striking force judgment.

The electronic protective clothing is added with an electronic detection device on the basis of the traditional protective clothing, so that certain necessary data and states are detected and transmitted to a receiver in a wireless mode, and the match data of athletes are monitored in real time through the butt joint of the receiver and a judge system, so that objective data quantification is realized.

The current electronic protective tool generally adopts a piezoelectric sensor to detect the attack force. The piezoelectric sensor is a self-generating and electromechanical conversion type sensor based on piezoelectric effect, and is made of piezoelectric materials as sensitive elements. After the piezoelectric material is stressed, electric charges are generated on the surface, the electric charges form current, and further voltage signals are generated. The voltage signal is amplified and transformed into electric quantity output in direct proportion to the external force by the circuit, and the electric quantity output can be used as the striking force after secondary processing. However, the amount of charge generated is related to the area and the impact strength, and under the same impact strength, the larger the impact area is, the more the amount of charge generated is, and the higher the voltage signal generated finally is. In the electronic protective tool, the boxing glove has different sizes, the small-size boxing glove has small impact area and small signal when in striking, and the large-size boxing glove has large impact area and large signal when in striking. Therefore, the impact data generated by the boxing gloves with different sizes is different for the same strength, thereby causing inaccurate detection results.

Secondly, although the piezoelectric effect itself is an accurate effect, the output value of the actually manufactured piezoelectric sensor is not stable due to deformation, resistance of the connecting wires, wireless interference, and the like. On the other hand, the consistency of data output of different piezoelectric sensors is poor, resulting in insufficient data accuracy measured by products using such piezoelectric sensors.

Moreover, current electronic protective equipment based on piezoelectric sensor is mostly a monoblock plane, receives to strike the back and can't embody exact impact position on output data, is unfavorable for confirming and strikes the position.

In the prior art, a 3-axis gyroscope is arranged on an electronic protective tool to acquire motion parameters, but the maximum attack position cannot be well positioned by adopting the conventional 3-axis gyroscope for measurement, the measurement of position coordinates and attack strength is not accurate enough, and the current attack track cannot be reconstructed; in addition, in some cases where the attack is not perfect (e.g., the attack force is biased), the prior art cannot calculate a precise impact force trajectory.

Disclosure of Invention

The invention aims to provide an electronic protector based on a gyroscope, and aims to solve the problems in the background technology.

The technical solution of the present invention is achieved as described above, and an electronic supporter based on a gyroscope, the electronic supporter including:

the PCB board is arranged on the bottom plate;

the MCU and the multiple gyroscopes are electrically connected with the PCB; the gyroscope is connected with the bottom plate;

the buffer layer is connected with the bottom plate; a groove for accommodating the PCB, the MCU and the gyroscope is formed in the buffer layer;

and the protective layer is connected with one surface of the buffer layer, which is far away from the bottom plate.

Preferably, the inner side of the protective layer is provided with a pressure sensing pad, and the pressure sensing pad comprises

A flexible substrate;

a multi-contact sensing board disposed on the flexible substrate; the multi-contact induction plate comprises array contacts which are arranged on the flexible substrate in a matrix mode, annular return springs which are convex upwards are annularly arranged on the peripheries of the array contacts, crimping points which are not contacted with the array contacts are arranged in the middle of the upper portions of the annular return springs, and each crimping point and the adjacent crimping points are electrically connected with each other to form a crimping net; insulating buffer filler is filled between the array contacts; the distance between the crimping point and the array contact is 0.3-1 mm;

and the upper electrode and the lower electrode are respectively connected with the crimping net and the array contact.

Preferably, the array contact is conductive metal protruding upwards in an annular shape, the pressure contact point is conductive metal protruding downwards in an annular shape, the annular return spring comprises an inner spring and an outer spring sleeved on the outer side of the inner spring, a gap is formed between the inner spring and the outer spring, and the pressure contact point in an annular structure is arranged in the gap.

Preferably, a net-shaped structure is compounded on the bottom plate at a position avoiding the groove, and the net-shaped structure is formed by parallel and crossed weaving of net wires made by mixing carbon fibers and rubber resin; the ratio of the carbon fibers to the rubber resin used for preparing the reticular structure is 1-1.5: 0.85; the diameter of the mesh structure is 4-10 mm;

the plane of the buffer layer corresponds to the cutting part of the mesh line of the mesh structure, the cutting depth of the plane of the buffer layer is 0.6-0.85% of the depth of the buffer layer, and the cutting part of the buffer layer is embedded into the mesh line of the mesh structure.

Preferably, the PCB is wrapped with a soft film colloid, the soft film colloid comprises a front soft film colloid completely wrapping the front side of the PCB and a side soft film colloid completely wrapping the side surface of the PCB, and the front soft film colloid and the side soft film colloid are integrally formed; the front soft film adhesive avoids the electronic component for coating;

a protective cover plate covers the PCB, and the periphery of the protective cover plate is bonded with the bottom plate; the protective cover plate is made of the same material as the bottom plate.

Preferably, the MCU and all or part of the gyroscope are integrally arranged on the PCB; the bottom plate is made of PVC, the buffer layer is made of hard sponge, the protective layer is made of PVC, and the insulating buffer filler of the pressure sensing pad is made of epoxy resin; the array contact is made of metal conductive particles, and the crimping points are made of conductive metal.

Preferably, the thickness of the PCB integrated with the MCU and the gyroscope is 2.8-3.2 mm; the thickness of the buffer layer is 4.8-5.2 mm; the thickness of a buffer layer between the gyroscope and the protective layer is 1.8-2.2 mm; the thickness of the pressure induction pad is 1-2.8 mm.

Preferably, a plurality of gyroscopes are uniformly distributed on the bottom plate, wherein at least three gyroscopes are uniformly distributed on the bottom plate, and the distance between any two adjacent gyroscopes is equal;

preferably, six gyroscopes are distributed on the bottom plate, wherein four rectangles are arranged in the middle of the bottom plate, and the remaining two rectangles are arranged in the middle of the two sides, so that the two gyroscopes and the two adjacent rectangles form an isosceles triangle.

The invention discloses a striking force detection and data processing system applied to the electronic protector based on the gyroscope, which comprises an acquisition system at the end of the electronic protector and an external data processing system connected with the acquisition system;

the acquisition system of the electronic protective tool end comprises

The MCU processing module is used for adding a time stamp and an identification code of detection equipment to characteristic parameters of the hitting force and the hitting position, filtering, detecting, verifying and positioning the collected data to obtain two output values of the attack position and the attack strength, packaging the two output values into monitoring data and transmitting the monitoring data to the wireless communication module;

the striking characteristic acquisition module is configured to acquire striking force parameters borne by the electronic protector through a plurality of gyroscopes; collecting the hitting range and the specific position pressure parameters born by the electronic protective tool through the pressure sensing pad;

the wireless communication module is configured to upload the acquired data to an external data processing system;

the external data processing system comprises

The striking track model building module is configured to sequence the acquired force data born by the gyroscopes, take the numerical values of the first three gyroscopes, namely the three gyroscopes closest to the attack position, and build a striking track initial model with position coordinates and attack force according to the data of the three gyroscopes; acquiring the parameters of the striking area and the position pressure collected by the pressure sensing pad, and establishing a striking area condition model; superposing the striking area condition model to the striking track initial model, and correcting and adjusting the striking track initial model to obtain a striking force track model of the striking force distribution condition;

the maximum striking force determining module is configured to calculate a central striking position in a space dimension according to the striking force track model and acquire maximum striking force data according to the central striking position;

and the striking force evaluation module is configured to comprehensively judge according to the effective striking range and the striking force of the striking force track model and grade the striking effect.

Preferably, the external data processing system further comprises

And the striking force evaluation weighting module is configured to perform secondary scoring on the striking effect according to the specific position of the effective striking range where the maximum striking force is located, and when the maximum striking force is located at the center position of the effective striking range (namely the attack position is not deviated), the scoring is weighted.

The third aspect of the invention discloses a preparation method of the electronic protector based on the gyroscope, which comprises the following steps:

cutting the reticular structure and the buffer layer to be the same as the bottom plate;

the plane of the buffer layer corresponds to the part of the net wire of the net-shaped structure to be cut, the cutting depth of the plane of the buffer layer is 0.6-0.85% of the depth of the buffer layer, and the cutting part of the buffer layer is embedded into the net wire of the net-shaped structure to form a whole;

forming holes in the positions, corresponding to the gyroscope, the PCB and the connecting line, of the buffer layer with the net structure, wherein the holes of the buffer layer just accommodate the protruding gyroscope, the PCB and the connecting line; then, firmly sticking one surface of the buffer layer embedded into the reticular structure on the bottom plate;

coating soft film colloid on the front surface and the side surface of the PCB, standing, bonding the bottom surface of the PCB on the bottom plate at the position of the groove after drying, and coating the soft film colloid to avoid the electronic component;

covering the PCB with a shallow disc type protective cover plate, wherein the edge of the protective cover plate is bonded with the bottom plate;

and covering and bonding a board with the size larger than that of the bottom board above the PCB to be used as a PCB protection board.

The invention provides an electronic protector based on a gyroscope, which consists of a bottom plate, a PCB (printed circuit board), an MCU (micro control unit), the gyroscope, a buffer layer and a protective layer. The invention adopts gyroscopes to replace piezoelectric sensors in the prior scheme, and adopts the basic principle that at least two gyroscopes are used for detecting position coordinates of attack at a striking position, one gyroscope is used for detecting attack strength, modeling is carried out through data of the gyroscopes to simulate impact conditions, and attack positions and attack strength are calculated through an MCU; the gyroscope is directly contacted with the PVC base plate, so that vibration conduction is performed to the maximum extent; the plurality of gyroscopes are uniformly distributed on the bottom plate, and the distances between two adjacent gyroscopes are equal or approximately equal, so that the gyroscopes are ensured to basically cover all areas on the bottom plate, each point on the bottom plate is at least within the maximum distance limit with one gyroscope, vibration attenuation caused by long-distance vibration transmission is avoided, and the calculated attack force is ensured not to change along with the attack position.

In the improvement scheme of the second aspect, the pressure sensing pad is additionally arranged on the electronic protective tool to accurately position the attack position, the attack position condition is superposed to the attack track model solved by the gyroscope data, the attack track model is corrected and adjusted, the attack center position is calculated according to the first data and the coordinate of the attack force of the gyroscope, and the maximum attack force is obtained, so that the attack track (attack area) model is more accurately established, and the scoring system is more perfect. The pressure sensing pad further makes up the defects that the gyroscope cannot accurately position the striking range and establish an accurate striking track model; the striking track model obtained by the method can be used for objectively evaluating the capability level of a striker in multiple directions, directly obtaining whether the striking action of the striker is standard from the striking track model, judging whether the striking posture is the optimal striking posture according to the striking position and the strength, and further providing a basis for later grade. The structure of the double springs and the annular pressure contact points in the pressure sensing pad can bear larger striking pressure, the compactness is higher, and the deformation is avoided; further avoiding the bottom device from being subjected to excessive impact force.

Compared with the existing scheme of adopting a piezoelectric sensor, the piezoelectric sensor has the following advantages:

1. the acceleration of the gyroscope is related to the impact strength and the material of the protective clothing, and in the same protective clothing, although the size is different, the material is the same, so that in practical application, the output value of the electronic protective clothing is only related to the impact strength; therefore, the gyroscope has high accuracy of attack detection, is not influenced by an attack area, and can position an attack position within a certain accuracy range.

2. The pressure sensing pad is connected with the array contacts to obtain the hitting power area, so that data processing is not complicated, a hitting area track model can be established by combining the pressure sensing pad with gyroscope data, and the maximum hitting power and the hitting effectiveness can be better evaluated; the pressure sensing cushion can sense a large pressure range by adjusting structural parameters, and the practicability is high.

3. The hard net structure embedded in the buffer layer is connected with the bottom plate into a whole, the buffer effect of the buffer layer can be reduced, impact force is effectively guided to the bottom plate, and therefore the accuracy of gyroscope detection data is further guaranteed.

4. The damage that the plate body caused when receiving strong impact is then avoided in the plastic film parcel of PCB board, and wherein electronic components avoids the parcel to guarantee its effective heat dissipation, the gyroscope parcel is avoided receiving the strike damage by high strength glue.

Drawings

Fig. 1 is a schematic structural diagram of an electronic supporter based on a gyroscope according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another electronic supporter based on a gyroscope according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a pressure-sensitive pad according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an electronic brace composed of a 6-piece gyroscope provided by an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a system for impact force detection and data processing according to an embodiment of the present invention.

In the drawings: 1. a base plate; 2. a PCB board; 3. MCU; 4. a gyroscope; 5. a buffer layer; 6. a protective layer; 7. a pressure sensing pad; 8. a network structure; 20. a protective cover plate; 70. a flexible substrate; 71. an array contact; 73. pressing a contact point; 74. crimping the net; 75. insulating buffer filler; 76 an inner spring; 77. an outer spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1, an electronic brace based on a gyroscope 4 according to an embodiment of the present invention includes:

the PCB comprises a bottom plate 1, wherein a PCB 2 is arranged on the bottom plate 1;

the MCU 3 and the multiple gyroscopes 4 are electrically connected with the PCB 2; the gyroscope 4 is connected with the bottom plate 1;

the buffer layer 5 is connected with the bottom plate 1; a groove for accommodating the PCB 2, the MCU 3 and the gyroscope 4 is formed in the buffer layer 5;

and the protective layer 6 is connected with one surface of the buffer layer 5, which is far away from the bottom plate 1.

The gyroscope 4 is an angular motion detection device around one or two axes orthogonal to the rotation axis with respect to the inertial space using a momentum moment sensitive housing of a high-speed rotation body, and an angular motion detection device made by using other principles is also referred to as a gyroscope 4 having the same function. According to the invention, the gyroscope 4 is used as a detection component instead of a piezoelectric sensor, when an attack falls on the sensor in the working process of the electronic protector, radial acceleration is generated in the sensor, and the magnitude of the acceleration is the actual impulse. In practical application, in order to avoid great impact on the gyroscope 4 due to excessive attack force, the gyroscope 4 with a small size should be used as much as possible, and the smaller the size of the gyroscope 4 is, the less the gyroscope is easily damaged, the more stable the work is and the longer the service life is. However, the size of the gyroscopes 4 cannot be made too small, and if the gyroscopes 4 are too small, the attack cannot fall on the gyroscopes 4, the radial impacts act directly on the buffer layer 5 between the gyroscopes 4, the buffer layer 5 conducting the impacts to the gyroscopes 4 by the tangential direction. In this process, the shock is converted into a shock and falls exponentially during transmission. This results in that the output signal intensity farther from the gyroscope 4 is smaller than the output signal intensity closer to the gyroscope 4, and when the distance reaches a certain degree, the magnitude intensity signal changes randomly and cannot be restored by the model. The source of this problem is that the buffer layer 5 is relatively soft and has a strong buffer performance, which results in an extremely poor shock transmission performance, and a large amount of shock is absorbed by the medium and cannot be transmitted to the gyroscope 4. Therefore, a hard plate (i.e., the base plate 1) is required to perform vibration conduction instead of the original sponge.

The MCU 3 is a micro controller Unit (Microcontroller Unit), also called a single-chip microcomputer or a single-chip microcomputer, which properly reduces the frequency and specification of the central processing Unit, and integrates the peripheral interfaces such as memory, counter, USB, a/D conversion, UART, PLC, DMA, etc., even the LCD driving circuit on a single chip to form a chip-level computer, which is used for different combination control in different applications. Here, connect MCU 3 and gyroscope 4 all on PCB board 2, be equipped with corresponding power supply unit and gyroscope 4 interface etc. on PCB board 2. The data detected by the gyroscope 4 are directly provided for the MCU 3, the MCU 3 carries out filtering, detection, verification, positioning and other calculations on the data through a built-in mathematical model to obtain two output values of an attack position and an attack strength, and then a special wireless communication link can be used for transmitting the data to a receiver for subsequent processing.

The presence of the buffer layer 5 prevents the attack from directly falling on the gyroscope 4, preventing the gyroscope 4 from being damaged by excessive impact. Buffer layer 5 appearance is the same with PVC bottom plate 1, slots in the position that gyroscope 4, PCB board 2, MCU 3 correspond, later firmly must paste buffer layer 5 on the PVC board, and outstanding gyroscope 4, PCB board 2, MCU 3 are just held to buffer layer 5's recess. Therefore, the whole of the PVC plate, the gyroscope 4, the PCB 2, the MCU 3, and the buffer layer 5 forms a protector having no protrusion on the surface. At this time, no matter where the attack occurs, since the contact area of the glove is much larger than that of the gyroscope 4, most of the impact is received by the buffer layer 5, and the effect of protecting the gyroscope 4 is achieved. And finally, covering a protective layer 6 on the surface of the exposed buffer layer 5 to further protect the gyroscope 4, the PCB 2, the MCU 3 and the like.

Specifically, adopt the PVC board as the hard board (being bottom plate 1) of conduction vibrations, the advantage of PVC board is, and hardness is higher, and is durable, and the pliability is better simultaneously, when the conduction vibrations, can bend into cylindrically, wraps up sportsman's health. In the design, gyroscope 4 directly contacts with the PVC board, uses high strength glue to wrap up gyroscope 4 wholly to link firmly on the PVC board, the at utmost shakes the conduction.

The buffer layer 5 is made of hard sponge, and the impact loss of the hard sponge is small.

In a preferred embodiment of the present invention, the thickness of the buffer layer 5 between the gyroscope 4 and the protective layer 6 is 1.8 to 2.2 mm. Specifically, the thickness of the buffer layer 5 between the gyroscope 4 and the protective layer 6 is about 2mm, so that the direct contact between the gyroscope 4 and the protective layer 6 made of PVC material is avoided, and the effect of further protecting the gyroscope 4 is achieved.

Specifically, the thickness of the PCB integrated with the MCU and the gyroscope is 2.8-3.2 mm; the thickness of buffer layer is 4.8 ~ 5.2 mm.

As a preferred embodiment of the present invention, as shown in fig. 2-3, a pressure sensing pad 7 is disposed inside the protection layer 6, and the pressure sensing pad 7 comprises

A flexible substrate 70;

a multi-contact sensor board disposed on the flexible substrate 70; the multi-contact induction plate comprises array contacts 71 arranged on the flexible substrate 70 in a matrix manner, annular return springs protruding upwards are annularly arranged on the periphery of the array contacts 71, a pressure contact point 73 which is not contacted with the array contacts 71 is arranged in the middle of the upper part of each annular return spring, and each pressure contact point 73 and the adjacent pressure contact point 73 are electrically connected with each other to form a pressure contact net 74; insulating buffer filler 75 is filled between the array contacts 71; the distance between the press contact 73 and the array contact 71 is 0.3-1 mm;

the upper and lower electrodes of the pressure contact net 74 and the array contact 71 are connected, respectively.

The flexible substrate can be realized by coating a flexible PI film on the existing glass substrate, and the Polyimide (PI) film is a film-type insulating material formed by performing polycondensation, film-forming and imidization on pyromellitic dianhydride and diaminodiphenyl ether in a strong polar solvent. The PI film is the best flexible substrate material at present due to the excellent high temperature resistance, mechanical property and chemical stability. The insulating buffer filler of the pressure sensing pad is made of epoxy resin; the array contact is made of metal conductive particles, and the metal can be one or more of copper, nickel, gold and the like; the pressure contact is made of conductive metal, and the metal conductive particles can be gold nanoparticles, copper nanoparticles and the like; the thickness of the pressure sensing pad is 1-2.8 mm in practical application. When the induction pad is impacted, the compression joint net is pressed down to enable the compression joint point to be in contact with the array contact to form a conductive path, external impact pressure is sensed by the distributed array contact, the contact number represents the area size of the pressure, and the two-dimensional distribution of the contact represents the direction distribution of the pressure; the characterization result is accurate; the size of the applied external force in the transverse direction can be determined by measuring the current or the resistance, the size of the applied external force in the longitudinal direction can be determined by combining the vibration size of the gyroscope, and the hitting force can be well described in a three-dimensional mode.

In a modified embodiment, in order to ensure that the press contact point and the annular return spring are not easily deformed when subjected to an impact force, the array contact 71 is made of an annular upward convex conductive metal, the press contact point 73 is made of an annular downward convex conductive metal, the annular return spring comprises an inner spring 76 and an outer spring 77 sleeved outside the inner spring 76, a gap is formed between the inner spring 76 and the outer spring 77, and the press contact point 73 in an annular structure is arranged in the gap. The common pressure sensor has insufficient structural rigidity, and is very easy to damage as a hitting force detection device; the double-layer spring has better rigidity and toughness, can deform to contact with the array contact under the action of the striking force, and the compression joint net restores to the original shape under the action of the reset spring when the striking force is removed.

As another embodiment of the present invention, as shown in fig. 2, a net-shaped structure 8 is combined on the bottom plate 1 at a position avoiding the groove, and the net-shaped structure 8 is formed by parallel and cross weaving of net wires made of a mixture of carbon fibers and rubber resin; the ratio of the carbon fibers to the rubber resin used for preparing the reticular structure 8 is 1-1.5: 0.85; the mesh diameter of the net-shaped structure 8 is 4-10 mm;

the plane of the buffer layer 5 corresponds to the cutting part of the mesh wire of the mesh structure 8, the cutting depth of the plane is 0.6-0.85% of the depth of the buffer layer, and the cutting part of the buffer layer 5 is embedded into the mesh wire of the mesh structure 8. Although the buffer layer employed in the embodiment of fig. 1 of the present invention has a small thickness, the loss is small; in a further scheme, the transverse transmission of the striking force is better met by arranging the net-shaped structure, and the impact loss is reduced as much as possible. On the other hand, the net-shaped structure and the bottom plate are integrated, and the net-shaped structure is similar to the reinforcing ribs of the bottom plate, so that the thickness of the bottom plate in the transverse direction is different, and the toughness is increased.

In another embodiment, in order to better protect the PCB from being damaged under the impact force, the PCB 2 is wrapped with a film adhesive, the film adhesive comprises a front film adhesive completely wrapping the front surface of the PCB and a side film adhesive completely wrapping the side surface of the PCB, and the front film adhesive and the side film adhesive are integrally formed; the front soft film adhesive avoids the electronic component for coating; so as to ensure the effective heat dissipation of the electronic components.

In a specific example, as shown in fig. 2, a protective cover plate 20 is further covered above the PCB 2, and the periphery of the protective cover plate 20 is bonded to the bottom plate; the protective cover plate 20 is made of the same material as the bottom plate 1. The PCB 2 cannot utilize the advantage of small size like the gyroscope 4 due to large size, most of impacts are avoided, if the attack directly falls on the PCB 2, more than half of the impacts are borne by the PCB 2, and the service life of the PCB 2 is not prolonged. Therefore, the PCB board 2 must be protected. The PCB is wrapped by the soft film colloid in a specific mode, so that the PCB has better toughness, and can be deformed and bent to a certain extent even if being subjected to larger impact force, so that the PCB is protected from being damaged. On the other hand, after the flexible film colloid is wrapped, the pressure above the PCB body is easy to lose, therefore, a piece of large-size PVC is covered above the PCB 2 to be used as the protective cover plate 20, because the size of the protective cover plate 20 is larger than that of the PCB, and the strength and the hardness of the protective cover plate are both higher, when the protective cover plate is attacked, the protective cover plate 20 firstly receives impact, the PVC plate 2 transmits the impact to the bottom plate 1 through a contact point with the bottom plate 1, the PCB 2 is protected, and the loss in the vibration transmission process is reduced as much as possible.

In some examples, the MCU and all or part of the gyroscope are integrally disposed on the PCB. MCU 3 and partial gyroscope 4 integration set up on PCB board 2, both saved the space, improved the reliability of electron protective equipment again.

A plurality of gyroscopes are uniformly distributed on the bottom plate, wherein at least three gyroscopes are uniformly distributed on the bottom plate, and the distance between any two adjacent gyroscopes is equal; in a preferred example, as shown in fig. 5, six gyroscopes are distributed on the bottom plate, wherein four rectangles are arranged in the middle of the bottom plate, and the remaining two rectangles are arranged in the middle of two sides, so that they form an isosceles triangle with two gyroscopes on adjacent rectangular sides.

Specifically, in the embodiment of the electronic protector with 6 gyroscopes 4 provided in fig. 4, 3 data interfaces are led out from the

PCB

2, 2 gyroscopes 4 are mounted on each interface, and 6 gyroscopes 4 are provided in total, and these 6 gyroscopes 4 provide the most original acceleration value of 6 points for the MCU 3. The bottom plate 1 is in a cross shape, four gyroscopes 4 in the middle of the bottom plate 1 are arranged in a rectangular shape, and the remaining two gyroscopes 4 are arranged in the middle of two sides of the bottom plate 1. In the attached drawing 2, the distances between two adjacent gyroscopes 4 are equal or approximately equal, and the equal distances are favorable for establishing a model, so that the accuracy of the model is improved, and the gyroscopes 4 can be ensured to cover all areas basically. And whole protective equipment is the cross, and every point all is in the maximum distance restriction with a gyroscope 4 at least on the protective equipment, has avoided the vibrations decay that long distance vibrations transmission arouses. Of course, the invention is not limited to the embodiments shown in the drawings.

As a preferred embodiment of the present invention, at least three gyroscopes 4 for acquiring data are provided, wherein two gyroscopes 4 are used for detecting the position coordinates of the attack, and the other gyroscope 4 is used for detecting the force of the attack.

In practice, the layout of the gyroscope 4 greatly affects the detection accuracy and sensitivity. If the gyroscopes 4 are not uniformly distributed, the data calculated by attacks at different positions will not be uniform. For one attack, there are three unknowns,

unknowns

1 and 2 are the X and Y values of the attack location coordinates, and unknowns 3 are the attack strength. The model for each attack therefore requires the coordinates of the three gyroscopes 4 to be resolved. After one attack, the forces borne by the gyroscopes 4 are sequenced, the numerical values of the top three gyroscopes 4 are taken, namely the three gyroscopes 4 closest to the attack position, and the attack calculation accuracy is highest due to the close positions of the three gyroscopes 4. Three unknown quantities of attack, namely the position coordinates of stress and the attack strength, can be calculated by substituting the data of the three gyroscopes 4 into a model.

The invention discloses a striking force detection and data processing system applied to the electronic protector based on the gyroscope, which is a preferred embodiment of the invention.

As shown in fig. 5, the acquisition system of the electronic shield terminal includes:

and the MCU processing module is used for adding a time stamp and an identification code of the detection device to the characteristic parameters of the striking force and the striking position, filtering, detecting, verifying and positioning the acquired data to obtain two output values of the attack position and the attack strength, packaging the two output values into monitoring data and transmitting the monitoring data to the wireless communication module.

The striking characteristic acquisition module is configured to acquire striking force parameters borne by the electronic protector through a plurality of gyroscopes; and acquiring the hitting range and specific position pressure parameters borne by the electronic protector through the pressure sensing pad.

And the wireless communication module is configured to upload the acquired data to an external data processing system.

The ambient data processing system includes:

the striking track model building module is configured to sequence the acquired force data born by the gyroscopes, take the numerical values of the first three gyroscopes, namely the three gyroscopes closest to the attack position, and build a striking track initial model with position coordinates and attack force according to the data of the three gyroscopes; acquiring the parameters of the striking area and the position pressure collected by the pressure sensing pad, and establishing a striking area condition model; and superposing the striking area condition model to the striking track initial model, and correcting and adjusting the striking track initial model to obtain the striking force track model of the striking force distribution condition.

And the maximum striking force determining module is configured to calculate a central striking position in a space dimension according to the striking force track model and acquire maximum striking force data according to the central striking position.

And the striking force evaluation weighting module is configured to carry out secondary scoring on the striking effect according to the specific position of the effective striking range where the maximum striking force is located, and when the maximum striking force is located at the center position of the effective striking range, weighting is carried out on the scoring.

The striking position of a striking track initial model solved by gyroscope data and the maximum striking force of a striking center position are not accurate enough in the technical characteristics, a striking area S track is obtained by a striking area condition model, a plurality of gyroscope positions are marked on the striking area S track, the striking force conditions of the center position and all peripheral positions on the striking area S track, namely isobaric pressure charts, can be solved by the distribution of gyroscopes on the S track and the magnitude of the striking force, and the striking force data and the position data obtained by the technical characteristics are more accurate. Moreover, the system can also calculate the striking gesture state of the striker through the isobaric chart, and provides basis for the attack posture evaluation of the striker. According to the technical scheme, even if the striking force is unevenly distributed when striking is deviated, the striking track can still be well restored, and a basis is better provided for striking scoring.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A gyroscope-based electronic brace, the electronic brace comprising:

the PCB board is arranged on the bottom plate;

the protective layer is connected with one surface of the buffer layer, which is far away from the bottom plate;

the protective layer is provided with a pressure sensing pad at the inner side, and the pressure sensing pad comprises

A flexible substrate;

2. The gyro-based electronic protector of claim 1, wherein the array contacts are annular convex conductive metal, the pressure contact is annular convex conductive metal, the annular return spring comprises an inner spring and an outer spring sleeved outside the inner spring, a gap is provided between the inner spring and the outer spring, and the pressure contact in an annular configuration is disposed in the gap.

3. The gyro-based electronic protector according to claim 1, wherein a net structure is combined on the base plate at a position avoiding the grooves, and the net structure is woven by parallel and crossing net threads made of a mixture of carbon fibers and rubber resin; the ratio of the carbon fibers to the rubber resin used for preparing the reticular structure is 1-1.5: 0.85; the diameter of the mesh structure is 4-10 mm;

4. The gyroscope-based electronic protector of claim 1, wherein the PCB board is wrapped with a film adhesive, the film adhesive comprising a front film adhesive completely wrapping a front surface of the PCB board and a side film adhesive completely wrapping a side surface of the PCB board, the front film adhesive and the side film adhesive being integrally molded; the front soft film adhesive avoids the electronic component for coating;

5. The gyroscope-based electronic brace of claim 1, wherein the MCU, and all or a portion of the gyroscope, are integrally disposed on the PCB board; the bottom plate is made of PVC, the buffer layer is made of hard sponge, the protective layer is made of PVC, and the insulating buffer filler of the pressure sensing pad is made of epoxy resin; the array contact is made of metal conductive particles, and the compression joint is made of conductive metal;

the thickness of the PCB integrated with the MCU and the gyroscope is 2.8-3.2 mm; the thickness of the buffer layer is 4.8-5.2 mm; the thickness of a buffer layer between the gyroscope and the protective layer is 1.8-2.2 mm; the thickness of the pressure induction pad is 1-2.8 mm.

6. The gyro-based electronics brace of claim 1, wherein a plurality of said gyroscopes are evenly distributed on said base, wherein at least three of said gyroscopes are evenly distributed on said base and wherein the distance between any two adjacent gyroscopes is equal.

7. The gyroscopic-based electronic brace of claim 6, wherein six gyroscopes are distributed on the base plate, four of the six gyroscopes being arranged in a middle portion of the base plate, and the remaining two gyroscopes being arranged in a middle portion of the two sides so as to form an isosceles triangle with each of the two gyroscopes of the adjacent rectangular sides.

8. A hitting force detection and data processing system applied to the electronic gyroscope-based protector according to any one of claims 1-7, characterized by comprising an acquisition system at the end of the electronic protector and an external data processing system connected with the acquisition system;

the acquisition system of the electronic protective tool end comprises

the external data processing system comprises

9. A system for impact force detection and data processing according to claim 8 and wherein said external data processing system further comprises

10. A method of making a gyroscope-based electronic brace for use in accordance with claim 3, comprising the steps of:

cutting the net structure, wherein the shape of the buffer layer is the same as that of the bottom plate;