CN108733130A - A kind of Multifunctional operation knob and its action identification method - Google Patents

Abstract

The invention discloses a kind of Multifunctional operation knob and its action identification methods.The Multifunctional operation knob includes magnetic part, mobile holder and 3D hall sensors；3D hall sensors are fixed on a pcb board；Mobile holder corresponds to that 3D hall sensors are movable to be set on pcb board, mobile holder can in X direction with Y-direction movement；The movable setting of magnetic part is arranged on mobile holder, and with 3D hall sensor faces, and magnetic part can be rotated along Z-direction selectivity closer or far from 3D hall sensors and around Z-direction.By pressing, rotation or Multifunctional operation knob provided by the invention is pushed, can realize multiple functions, to reduce the quantity for controlling Multifunctional operation knob in equipment, while simplifying mechanical structure, improves the sealing performance of Multifunctional operation knob, reduce contact abrasion.

Description

A multifunctional operation button and its action recognition method

technical field

Embodiments of the present invention relate to the technical field of multifunctional operation buttons, and in particular, to a multifunctional operation button and an action recognition method thereof.

Background technique

With the development and popularization of the automobile industry, more and more multi-function operation buttons are used to control the human-computer interaction panel in the car, and the forms of control multi-function operation buttons are also diversified, including buttons, operation buttons, levers and push rods, etc. . These control multi-function operation buttons can control more and more functions of the vehicle, such as opening the air conditioner, adjusting the volume, adjusting the air volume, and menu selection on the central control screen. Since the number of control multi-function operation buttons is increasing, it is not conducive to the operation and the appearance of the whole vehicle, so modern cars require a multi-function operation button to be able to achieve multiple operations to achieve multiple functions.

Now, most of the multi-function control multi-function operation buttons use mechanical encoders to realize the functions corresponding to their rotation operations. However, mechanical encoders have problems such as complex mechanical structure, high design difficulty, large contact wear, poor dustproof and waterproof performance, no earthquake resistance and high cost.

Contents of the invention

The present invention provides a multifunctional operation button and its action recognition method, which can realize multiple corresponding functions by pressing, rotating or pushing operations, thereby reducing the number of multifunctional operation buttons in the device, simplifying the mechanical structure, and improving multiple functions. The sealing performance of the functional operation button reduces contact wear.

In the first aspect, the embodiment of the present invention provides a multifunctional operation button, including a magnetic part, a mobile bracket and a 3D Hall sensor;

The 3D Hall sensor is fixed and electrically connected to a circuit board;

The mobile bracket is pushably arranged on the circuit board;

The magnetic part is rotatably and depressibly arranged on the mobile bracket, and is arranged opposite to the 3D Hall sensor.

Optionally, the mobile bracket is provided with a moving mechanism, and the circuit board is provided with a guiding mechanism corresponding to the moving mechanism, and the moving mechanism cooperates with the guiding mechanism to realize the pushing action of the mobile bracket.

Optionally, the moving mechanism includes four sliding bars; the guiding mechanism includes four sliding slots corresponding to the sliding bars, and each sliding slot is in the shape of a cross.

Optionally, the multifunctional operation button further includes a magnetic component fixing mechanism, which is used to fix the magnetic component on the mobile bracket and drive the magnetic component to rotate.

Optionally, the multifunctional operation button further includes a top cover, the top cover covers the magnetic part fixing mechanism and the magnetic part, and is kept relatively fixed with the magnetic part through the magnetic part fixing mechanism, and is used for pressing and rotating actions.

Optionally, the top cover is connected to the mobile support through a recovery mechanism, and the recovery mechanism is used to restore the top cover to its original position.

Optionally, the magnetic member is a radially magnetized cylindrical or circular magnet.

In the second aspect, the embodiment of the present invention also provides an action recognition method for a multi-function operation button. The multi-function operation button is any one of the multi-function operation buttons described in the first aspect of the present invention. include:

Read the change value of the magnetic induction intensity in the sensing direction of the 3D Hall sensor during the action of the multi-function operation button through the 3D Hall sensor, wherein the sensing direction includes the mutually perpendicular X direction, Y direction and Z direction;

The operation action of the multi-function operation button is recognized according to the change value of the magnetic induction intensity in the induction direction.

Optionally, the magnetic part in the multi-function operation button is a radially magnetized magnet, and the radial direction is parallel to the XY plane; the operation action of the multi-function operation button is recognized according to the change value of the magnetic induction intensity in the sensing direction, including:

Normalize the change value of the magnetic induction intensity in the induction direction;

Draw the magnetic induction intensity change curve in the induction direction according to the normalized magnetic induction intensity change value;

The change parameter of the magnetic induction intensity change curve is compared with the set parameter, and the operation action of the multi-function operation button is recognized.

Optionally, the change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button, including:

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the X direction gradually increases, and/or the magnetic induction intensity in the Y direction gradually increases, and the change in the magnetic induction intensity in the Z direction is always 0, then it is determined that there is more The operation action of the function operation button is a pressing action.

Optionally, the change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button, including:

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity change curve in the X direction changes according to the first sinusoidal curve, and the magnetic induction intensity change curve in the Y direction changes according to the second sinusoidal curve, the first sinusoidal curve and the second sinusoidal curve If the phase difference is 90°, and the change of the magnetic induction intensity in the Z direction is always 0, then it is determined that the operation action of the multi-function operation button is a rotation action.

Optionally, when determining that the operation action of the multi-function operation button is a rotation action, it also includes:

The rotation angle of the multi-functional operation button is determined according to the phase change amount of the first sinusoidal curve or the second sinusoidal curve.

Optionally, the change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button, including:

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the Z direction changes, it is determined that the operation action of the multi-function operation button is a push action; or,

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the X direction gradually decreases, and the changes in the magnetic induction intensity in the Y direction and Z direction are always 0, then it is determined that the operation action of the multi-function operation button is a push action; or ,

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the Y direction gradually decreases, and the change in the magnetic induction intensity in the X direction and the Z direction is always 0, then it is determined that the operation action of the multi-function operation button is a push action .

Optionally, the push action includes a push action in the X direction and a push action in the Y direction, and the direction of the magnetic field is parallel to the X direction; determining that the operation action of the multi-function operation button is a push action includes:

If the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity in the Z direction gradually increases, it is determined that the operation action of the multi-function operation button is a push action in the positive X direction;

If the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity in the Z direction gradually decreases, it is determined that the operation action of the multi-function operation button is a push action in the negative X direction;

If the magnetic induction intensity in the X direction decreases gradually, and the magnetic induction intensity changes in the Y direction and the Z direction are always 0, then it is determined that the operation action of the multi-function operation button is a push action in the Y direction.

In the multifunctional operation button provided by the embodiment of the present invention, the magnetic part is rotatably and depressibly arranged on the mobile bracket, the mobile bracket is pushably arranged on the circuit board, and the 3D Hall sensor is fixed and electrically connected to the circuit board. Set opposite to the magnetic part, by pressing, rotating the magnetic part or pushing the mobile bracket, the magnetic part and the 3D Hall sensor will move relative to each other, and the 3D Hall sensor will process the change of the magnetic field intensity sensed and convert it into an electrical signal Send it to the external processor, and the external processor judges the specific operation action according to the electrical signal, and sends out the corresponding control signal to realize the corresponding function.

Description of drawings

Fig. 1 is an assembly diagram of a multifunctional operation button provided by Embodiment 1 of the present invention;

Fig. 2 is a flow chart of a method for recognizing the action of a multi-functional operation button provided in Embodiment 2 of the present invention;

FIG. 3 is a flowchart of an action recognition of a multi-function operation button provided by Embodiment 2 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

Embodiment one

Embodiment 1 of the present invention provides a multifunctional operation button. FIG. 1 is an assembly diagram of the multifunctional operation button provided in Embodiment 1 of the present invention. As shown in FIG. 1 , the multifunctional operation button includes a magnetic part 100 and a mobile bracket 200 and a 3D hall sensor 300 . Wherein, the 3D Hall sensor 300 is fixed and electrically connected to a circuit board 400 . The mobile bracket 200 is pushably disposed on the circuit board 400 . The magnetic element 100 is rotatably and depressibly disposed on the mobile bracket 200 , and is disposed opposite to the 3D Hall sensor. As shown in FIG. 1 , by pressing the operation, the magnetic part 100 can move downward relative to the 3D Hall sensor 300 in the Z direction, approaching the 3D Hall sensor 300; by rotating the operation, the magnetic part 100 can rotate around the magnetic The vertical axis of the component 100 rotates; through the pushing operation, the mobile bracket 200 is pushed to translate in the X direction and the Y direction in the horizontal plane, and then drives the magnetic component 100 to translate in the X direction and the Y direction in the plane where it is located. The magnetic component 100 is relative to the 3D The Hall sensor 300 moves along the X direction and the Y direction. Wherein, the X direction, the Y direction and the Z direction are perpendicular to each other. During the relative movement between the magnetic element 100 and the 3D Hall sensor 300 , the 3D Hall sensor 300 is used to detect the change of the magnetic induction in the X, Y and Z directions. Specifically, when the magnetic member 100 and the 3D Hall sensor 300 move relative to each other, the magnetic flux passing through the 3D Hall sensor 300 along the X, Y, and Z directions changes, causing changes in the magnetic induction in the X, Y, and Z directions, respectively. change, the 3D Hall sensor 300 converts the change of the magnetic induction intensity into an electrical signal, and transmits it to the external processor through the circuit on the circuit board 400, and the external processor judges the specific operation action according to the electrical signal, and sends out a corresponding The control signal to realize the corresponding function.

In the multifunctional operation button provided by the embodiment of the present invention, the magnetic part is rotatably and depressibly arranged on the mobile bracket, the mobile bracket is pushably arranged on the circuit board, and the 3D Hall sensor is fixed and electrically connected to the circuit board. And it is set opposite to the magnetic part. By pressing, rotating the magnetic part or pushing the mobile bracket, the magnetic part and the 3D Hall sensor will move relative to each other, causing the change of the magnetic induction intensity inside the 3D Hall sensor, and the 3D Hall sensor will magnetically induce The change of the intensity is converted into an electrical signal and transmitted to an external processor. The external processor judges the specific operation action according to the electrical signal, and sends a corresponding control signal to realize the corresponding function.

Continuing to refer to FIG. 1 , optionally, the mobile bracket 200 is provided with a moving mechanism, and the circuit board is provided with a guiding mechanism corresponding to the moving mechanism, and the moving mechanism cooperates with the guiding mechanism to realize the pushing action of the mobile bracket. Optionally, the moving mechanism includes four sliding bars 201 distributed in a cross shape; the guiding mechanism includes four sliding slots 401 corresponding to the sliding bars 201, and each sliding slot 401 is in a cross shape. It should be noted that the above-mentioned sliding bar 201 and chute 401 are only one way to realize the four-way movement of the mobile bracket 200. In other embodiments, the moving mechanism and the guiding mechanism can also be in other forms. This will not be repeated here.

Continuing to refer to FIG. 1 , optionally, the multi-function operation button further includes a magnetic component fixing mechanism 501 , and the multi-function operation button further includes a top cover 500 . Optionally, the magnetic component fixing mechanism 501 may be a buckle, which is disposed inside the top cover 500 and used to fix the magnetic component 100 on the mobile bracket 200 . The top cover 500 covers the magnetic component fixing mechanism 501 and the magnetic component 100 , and is relatively fixed with the magnetic component 100 through the magnetic component fixing mechanism 501 for pressing and rotating actions. Specifically, the pressing action and the rotating action can be realized by pressing and rotating the top cover 500 .

Optionally, the top cover 500 is connected to the mobile bracket 200 through a recovery mechanism (not shown in the figure), and the recovery mechanism is used to restore the top cover 500 to an initial position. In one embodiment, the recovery mechanism may be a spring recovery mechanism, which is used to restore the top cover 500 and the magnetic component 100 to their original positions after the pressing action is completed.

Continuing to refer to FIG. 1 , optionally, the magnetic member 100 is a radially magnetized cylindrical or circular magnet. Correspondingly, the interior of the top cover 500 is a cylindrical cavity. The mobile support 200 has a circular tubular structure, and the top cover 500 is fastened on the mobile support 200 .

Embodiment two

Embodiment 2 of the present invention provides an action recognition method for a multi-function operation button. The multi-function operation button is any of the multi-function operation buttons described in Embodiment 1 of the present invention. FIG. 2 is a method provided by Embodiment 2 of the present invention. The flow chart of the action recognition method of the multi-function operation button, as shown in Figure 2, the action recognition method of the multi-function operation button includes:

S1: Read the change value of the magnetic induction intensity in the sensing direction of the 3D Hall sensor during the action of the multi-function operation button through the 3D Hall sensor, wherein the sensing direction includes the mutually perpendicular X direction, Y direction and Z direction.

Continuing to refer to FIG. 1 , during the relative movement between the magnetic member 100 and the 3D Hall sensor 300 , the 3D Hall sensor 300 is used to detect changes in the magnetic induction in X, Y and Z directions. Specifically, when the magnetic member 100 and the 3D Hall sensor 300 move relative to each other, the magnetic flux passing through the 3D Hall sensor 300 along the X, Y, and Z directions changes, causing changes in the magnetic induction in the X, Y, and Z directions, respectively. Variety.

S2: Identify the operation action of the multi-function operation button according to the change value of the magnetic induction intensity in the sensing direction.

The 3D Hall sensor 300 converts the change of magnetic induction intensity into an electrical signal, and transmits it to the external processor through the circuit on the circuit board 400, and the external processor judges the specific operation action according to the electrical signal, and issues a corresponding control signal to realize the corresponding function.

The action recognition method of the multi-function operation button provided by the embodiment of the present invention uses the 3D Hall sensor to read the change value of the magnetic induction intensity in the sensing direction of the 3D Hall sensor during the action process of the multi-function operation button, and the 3D Hall sensor The change of the magnetic induction intensity is converted into an electrical signal, which is sent to the external processor. The external processor judges the specific operation action according to the electrical signal, and sends a corresponding control signal to realize the corresponding function.

Optionally, the magnetic part in the multi-function operation button is a radially magnetized magnet, and the radial direction is parallel to the XY plane; the operation action of the multi-function operation button is recognized according to the change value of the magnetic induction intensity in the sensing direction, including:

Normalize the change value of the magnetic induction intensity in the induction direction, that is, convert the dimensioned value into a dimensionless value and become a scalar, so that the absolute value of the physical system value becomes a certain relative value relationship. Specifically, the 3D Hall sensor identifies the maximum value of the change of the magnetic induction intensity in the X, Y, and Z directions, and converts the change value of the magnetic induction intensity in the X, Y, and Z directions to the maximum value during the operation into a percentage value.

According to the change values of the magnetic induction intensity in the X, Y and Z directions after normalization, the magnetic induction intensity change curves in the X, Y and Z directions are drawn respectively.

The change parameter of the magnetic induction intensity change curve is compared with the set parameter, and the operation action of the multi-function operation button is recognized.

Optionally, the change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button, including:

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the X direction gradually increases, and/or the magnetic induction intensity in the Y direction gradually increases, and the change of the magnetic field intensity in the Z direction is always 0, then it is determined that there is more The operation action of the function operation button is a pressing action.

During the pressing operation, the magnetic element 100 approaches the 3D Hall sensor 300 along the Z direction, and there is no displacement and no rotation in the X and Y directions. Since the direction of the magnetic field is parallel to the XY plane, the vector sum of the magnetic flux on the XY plane is always zero, that is, there is no change in the magnetic induction intensity in the Z direction. The closer to the magnetic element 100 , the greater the magnetic flux density. If the magnetic part 100 is in the initial position, the magnetic field direction is parallel to the X direction, then the magnetic flux in the YZ plane becomes larger; if the magnetic part 100 is in the initial position, the magnetic field direction is parallel to the Y direction, then the magnetic flux in the XZ plane becomes larger; If the magnetic element 100 is at the initial position, the direction of the magnetic field is neither parallel to the X direction nor parallel to the Y direction, the magnetic fluxes on the YZ plane and the XZ plane both become larger and larger. Based on this, the external processor judges that the operation action of the multi-function operation button is a pressing action.

Optionally, the change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button, including:

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity change curve in the X direction changes according to the first sinusoidal curve, and the magnetic induction intensity change curve in the Y direction changes according to the second sinusoidal curve, the first sinusoidal curve and the second sinusoidal curve If the phase difference is 90°, and the change of the magnetic induction intensity in the Z direction is always 0, then it is determined that the operation action of the multi-function operation button is a rotation action.

During the rotation operation, the magnetic member 100 rotates about the central axis without displacement in the X direction, the Y direction and the Z direction. Since the direction of the magnetic field is parallel to the XY plane, the vector sum of the magnetic flux on the XY plane is always zero, that is, there is no change in the magnetic induction intensity in the Z direction. The magnetic induction intensity change curves in the X direction and the Y direction are two sinusoidal curves with a phase difference of 90°. Based on this, the external processor judges that the operation action of the multi-function operation button is a rotation action.

Optionally, when determining that the operation action of the multi-function operation button is a rotation action, it also includes:

The rotation angle of the multi-functional operation button is determined according to the phase change amount of the first sinusoidal curve or the second sinusoidal curve. Specifically, when the magnetic member 100 is in the initial position, the direction of the magnetic field is parallel to the X direction and points to the positive direction of X as an example. At the initial position, the magnetic flux in the YZ plane is the largest in the positive direction, and the magnetic flux in the XZ plane is zero, that is, the X direction is at this time The magnetic induction intensity in the Y direction is the largest, and the magnetic induction intensity in the Y direction is zero. Rotate clockwise 90°, in the first quadrant of the corresponding curve, as the phase angle increases, the magnetic flux in the YZ plane decreases gradually until it reaches zero; the magnetic flux in the XZ plane gradually increases until it reaches the positive maximum value, that is, the magnetic flux in the X direction The magnetic induction gradually decreases from the positive maximum until it is zero, and the magnetic induction in the Y direction gradually increases from zero to the positive maximum. The external processor determines the rotation angle of the multi-function operation button according to the corresponding relationship between the phase and the magnetic induction intensity. The determination of the rotation angle in other quadrants is similar to the determination of the rotation angle in the first quadrant, and will not be repeated here.

Optionally, when determining that the operation action of the multi-function operation button is a rotation action, it also includes:

The rotation direction of the multi-functional operation button is determined according to the phase change amount of the first sinusoidal curve or the second sinusoidal curve. Specifically, when the magnetic member 100 is in the initial position, the direction of the magnetic field is parallel to the X direction and points to the positive direction of X as an example. At the initial position, the magnetic flux in the YZ plane is the largest in the positive direction, and the magnetic flux in the XZ plane is zero, that is, the X direction is at this time The magnetic induction intensity in the Y direction is the largest, and the magnetic induction intensity in the Y direction is zero. Within the range of 90°clockwise rotation, the magnetic induction intensity in the Y direction increases positively; when it is rotated counterclockwise, within the range of 90°, the magnetic induction intensity in the Y direction increases negatively. The external processor uses this to determine the direction of rotation.

Optionally, the change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button, including:

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the Z direction changes, it is determined that the operation action of the multi-function operation button is a push action; or,

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the X direction gradually decreases, and the changes in the magnetic induction intensity in the Y direction and Z direction are always 0, then it is determined that the operation action of the multi-function operation button is a push action; or ,

If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the Y direction decreases gradually, and the magnetic induction intensity changes in the X and Z directions are always 0, then it is determined that the operation action of the multi-function operation button is a push action.

Optionally, the push action includes a push action in the X direction and a push action in the Y direction. Take the magnetic field direction parallel to the X direction as an example when the magnetic member 100 is in the initial position, the sum of the magnetic flux vectors in the XY direction is zero, and the magnetic flux in the YZ plane is positive. direction is the largest, and the XZ plane magnetic flux vector sum is zero, that is, the magnetic induction intensity in the X direction is positive at this time, the magnetic induction intensity in the Y direction is zero, and the magnetic induction intensity in the Z direction is zero; the operation action of the multi-function operation button is determined to be a push action, include:

If the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity in the Z direction gradually increases positively, it is determined that the operation action of the multi-function operation button is a push action in the positive X direction;

If the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity in the Z direction gradually decreases (increases in the negative direction), then it is determined that the operation action of the multi-function operation button is a push action in the X negative direction;

If the magnetic induction intensity in the X direction decreases gradually, and the magnetic induction intensity changes in the Y direction and the Z direction are always 0, then it is determined that the operation action of the multi-function operation button is a push action in the Y direction.

Taking the magnetic part 100 at the initial position, the direction of the magnetic field is parallel to the Y direction as an example, the sum of the magnetic flux vectors in the XY direction is zero, the sum of the magnetic flux vectors in the YZ plane is zero, and the positive direction of the magnetic flux in the XZ plane is the largest, that is, the magnetic induction in the Y direction at this time Positive maximum, the magnetic induction intensity in the X direction is zero, and the magnetic induction intensity in the Z direction is zero; the operation action of the multi-function operation button is determined to be a push action, including:

If the magnetic induction intensity in the Y direction gradually decreases, and the magnetic induction intensity in the Z direction gradually increases positively, it is determined that the operation action of the multi-function operation button is a push action in the positive Y direction;

If the magnetic induction intensity in the Y direction gradually decreases, and the magnetic induction intensity in the Z direction gradually decreases (increases in the negative direction), then it is determined that the operation action of the multi-function operation button is a push action in the negative direction of Y;

If the magnetic induction intensity in the Y direction decreases gradually, and the magnetic induction intensity changes in the X direction and the Z direction are always 0, then it is determined that the operation action of the multi-function operation button is a push action in the Y direction.

Fig. 3 is a flow chart of an action recognition of a multi-function operation button provided in Embodiment 2 of the present invention, as shown in Fig. 3, optionally, the recognition process includes:

Judging whether the change parameter of the magnetic induction intensity conforms to the setting parameter of the magnetic induction intensity during the pressing operation, if yes, judge that the action is a pressing operation; if not, continue to judge whether the changing parameter of the magnetic induction intensity meets the setting parameter of the magnetic induction intensity during the rotation parameter, if so, then judge that the action is a rotation operation; if not, then continue to judge whether the magnetic induction intensity change parameter meets the set parameter of the magnetic induction intensity change during the four-way push operation, if so, then judge that the action is a four-way push operation; if If not, it is judged that the action is a misoperation.

Among them, the setting parameters for judging whether the change parameter of the magnetic induction intensity conforms to the change of the magnetic induction intensity during the four-way push operation include:

Judging whether the change parameter of the magnetic induction intensity meets the set parameter of the change of the magnetic induction intensity during the +X direction pushing operation, if so, then judging that the action is a +X direction pushing operation;

Judging whether the change parameter of the magnetic induction intensity meets the setting parameter of the magnetic induction intensity change during the -X direction pushing operation, if so, then judging that the action is a -X direction pushing operation;

Judging whether the change parameter of the magnetic induction intensity meets the setting parameter of the magnetic induction intensity change during the +Y direction pushing operation, if so, then judging that the action is a +Y direction pushing operation;

It is judged whether the change parameter of the magnetic induction intensity meets the set parameter of the change of the magnetic induction intensity during the -Y direction push operation, and if so, it is judged that the action is a -Y direction push operation.

Optionally, when it is judged that the change parameter of the magnetic induction intensity does not match the set parameters of the change of the magnetic induction intensity during the push operation in the +X, -X, +Y and -Y directions, it is determined that the action is a misoperation.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (14)

1. A multifunctional operation button, characterized in that it includes a magnetic part, a mobile bracket and a 3D Hall sensor; The 3D Hall sensor is fixed and electrically connected to a circuit board; The mobile bracket is pushably arranged on the circuit board; The magnetic part is rotatably and depressably arranged on the mobile bracket, and is arranged opposite to the 3D Hall sensor. 2. A multi-function operation button according to claim 1, characterized in that, the moving bracket is provided with a moving mechanism, and the circuit board is provided with a guiding mechanism corresponding to the moving mechanism, and the moving mechanism cooperates with the moving mechanism. The guide mechanism is used to realize the pushing action of the mobile bracket. 3. A multifunctional operation button according to claim 2, characterized in that, the moving mechanism includes four slide bars; the guide mechanism includes four slide slots corresponding to the slide bars, and the four sliding slots correspond to the slide bars. The chutes are arranged in a cross shape, and each of the chutes is in a cross shape. 4. The multifunctional operation button according to claim 1, further comprising a magnetic piece fixing mechanism, the magnetic piece fixing mechanism is used to fix the magnetic piece on the moving bracket and drive the magnetic piece The magnetic member rotates. 5. The multifunctional operation button according to claim 4, further comprising a top cover, the top cover covers the magnetic component fixing mechanism and the magnetic component, and is fixed by the magnetic component The mechanism is kept relatively fixed with the magnetic part, and is used for pressing action and rotating action. 6. A multifunctional operation button according to claim 5, characterized in that, the top cover is connected to the moving bracket through a recovery mechanism, and the recovery mechanism is used to restore the top cover to its original position . 7 . The multifunctional operation button according to claim 1 , wherein the magnetic member is a radially magnetized cylindrical or circular magnet. 8 . 8. An action recognition method for a multi-function operation button, characterized in that the multi-function operation button is the multi-function operation button according to any one of claims 1-7, and the action recognition method for the multi-function operation button comprises : Read the change value of the magnetic induction intensity in the sensing direction of the 3D Hall sensor during the action of the multi-function operation button through the 3D Hall sensor, wherein the sensing direction includes the mutually perpendicular X direction, Y direction and Z direction; The operation action of the multi-function operation button is identified according to the change value of the magnetic induction intensity in the induction direction. 9. The action recognition method of the multifunctional operation button according to claim 8, wherein the magnetic part in the multifunctional operation button is a radially magnetized magnet, and the radial direction is parallel to the XY plane; according to the The change value of the magnetic induction intensity in the sensing direction identifies the operation action of the multi-function operation button, including: Normalizing the change value of the magnetic induction intensity in the induction direction; Draw a magnetic induction intensity change curve in the induction direction according to the normalized magnetic induction intensity change value; The change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button. 10. The action recognition method of the multi-function operation button according to claim 9, characterized in that the change parameter of the magnetic induction intensity change curve is compared with the set parameter to identify the operation action of the multi-function operation button ,include: If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the X direction gradually increases, and/or the magnetic induction intensity in the Y direction gradually increases, and the magnetic induction intensity in the Z direction If the change is always 0, it is determined that the operation action of the multi-function operation button is a pressing action. 11. The action recognition method of the multi-function operation button according to claim 9, characterized in that the change parameter of the magnetic induction intensity change curve is compared with the set parameter, and the operation action of the multi-function operation button is recognized ,include: If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity change curve in the X direction changes according to the first sinusoidal curve, and the magnetic induction intensity change curve in the Y direction changes according to the second sinusoidal curve, the first If the phase difference between the first sinusoidal curve and the second sinusoidal curve is 90°, and the change of the magnetic induction intensity in the Z direction is always 0, it is determined that the operation action of the multi-function operation button is a rotation action. 12. The action recognition method of the multi-function operation button according to claim 11, characterized in that, when determining that the operation action of the multi-function operation button is a rotation action, further comprising: The rotation angle of the multi-function operation button is determined according to the phase change amount of the first sinusoid or the second sinusoid. 13. The action recognition method of the multi-function operation button according to claim 9, characterized in that the change parameter of the magnetic induction intensity change curve is compared with the set parameter, and the operation action of the multi-function operation button is recognized ,include: If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the Z direction changes, it is determined that the operation action of the multi-function operation button is a push action; or, If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity changes in the Y direction and the Z direction are always 0, then it is determined that the multi-function The operation action of the operation button is a push action; or, If the change parameter of the magnetic induction intensity change curve satisfies that the magnetic induction intensity in the Y direction decreases gradually, and the magnetic induction intensity changes in the X direction and the Z direction are always 0, then it is determined that the multi-function The operation action of the operation button is a pushing action. 14. The action recognition method of the multi-function operation button according to claim 13, wherein the pushing action includes the pushing action in the X direction and the pushing action in the Y direction, and the direction of the magnetic field is different from that in the X direction. Parallel; determine that the operation action of the multi-function operation button is a push action, including: If the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity in the Z direction gradually increases, it is determined that the operation action of the multi-function operation button is a push action in the positive X direction; If the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity in the Z direction gradually decreases, it is determined that the operation action of the multi-function operation button is a push action in the negative X direction; If the magnetic induction intensity in the X direction gradually decreases, and the magnetic induction intensity changes in the Y direction and the Z direction are always 0, then it is determined that the operation action of the multi-function operation button is the Y direction push action.