An on-screen knob and an electronic device

Abstract

The present application relates to an on-screen knob and an electronic device, including: a knob body and a sensing component respectively located on both sides of the screen. The knob body is provided with a magnetic ring, and a plurality of magnetic blocks are arranged in sequence along the circumferential direction of the magnetic ring, and the polarities of adjacent magnetic blocks are opposite. The sensing component at least includes a first linear Hall element, a plurality of second linear Hall elements, and an identification module. The identification module is used to determine the operation of the knob based on the magnetic field intensity obtained by the sensing component. Among them, in the reference state of the knob, the center position between the first linear Hall element and any adjacent magnetic block corresponds, and the plurality of second linear Hall elements respectively correspond to the positions of different magnetic blocks. The rotation and pressing functions of the on-screen knob in the present application can be independently realized, with little mutual interference and high stability. At the same time, multi-directional pressing recognition can be achieved, making it more convenient to use.

Description

Technical Field

[0001] The present application relates to the technical field of knobs, and particularly to an on-screen knob and an electronic device. Background Art

[0002] In current application scenarios such as automobiles, more and more large screens are used in in-vehicle central control large screens. For these large screens, virtual buttons on the touch screen are generally used as their control inputs, but the real operation effects of the original physical buttons cannot be achieved. At the same time, the inconvenient operability will also cause distraction of driving attention and lead to traffic accidents. For this reason, on-screen knobs emerge as the times require. The on-screen knob realizes the operation function of the knob without damaging the original vehicle-mounted screen.

[0003] For an on-screen knob, in the prior art, the knob is generally fixed on the screen, and an induction plate is placed on the back of the screen to detect the rotation and pressing actions of the knob and transmit them to the main control ECU for processing. Among them, a Hall element is arranged on the induction plate, and a magnet block with left-right grading is arranged on the knob. The Hall element is directly opposite to the magnet block and is located in the direction of the rotation axis. By rotating or translating the knob, the magnetic field generated by the induction magnet changes in angle or position, and rotation recognition is performed based on the change in the magnetic field angle or position. By pressing the knob, the magnetic field intensity generated by the induction magnet changes, and pressing recognition is performed based on the change in the magnetic field intensity.

[0004] However, the above technology has the following defects: This structure must arrange the magnet block and the Hall element in the direction of the rotation axis, which is not applicable to a knob with a hollow structure; it is easy to cause misrotation when only pressing, and it is easy to cause mispressing when only rotating. They are easy to interfere with each other, resulting in misoperation and poor stability. Summary of the Invention

[0005] Based on this, it is necessary to provide an on-screen knob and an electronic device that can stably resist interference in view of the above technical problems.

[0006] On the one hand, the present application provides an on-screen knob, including: a knob body and an induction component located on both sides of the screen respectively. In one embodiment, the knob body is provided with a magnetic ring. In one embodiment, a plurality of magnet blocks are arranged in sequence along the circumferential direction of the magnetic ring, and the polarities of adjacent magnet blocks are opposite in one embodiment. In one embodiment, the induction component includes at least one first linear Hall element, a plurality of second linear Hall elements, and a recognition module. In one embodiment, the recognition module is used to determine the operation of the knob based on the magnetic field intensity obtained by the induction component. Among them, in the reference state of the knob, in one embodiment, the center position between the first linear Hall element and any adjacent magnet block corresponds, and a plurality of second linear Hall elements in one embodiment correspond to the positions of different magnet blocks respectively.

[0007] In one embodiment, a through hole is provided in the knob body along the direction of its rotation axis, and in one embodiment, the magnetic blocks of the magnetic ring are arranged along the circumferential direction of the through hole.

[0008] In one embodiment, the through hole is used to transmit the display content on the screen, and in one embodiment, a transparent medium or a translucent medium is provided in the through hole.

[0009] In one embodiment, the knob body includes a rotating base and a rotating ring. In one embodiment, the rotating ring is sleeved on the rotating base, and in one embodiment, the magnetic ring is arranged inside the rotating ring.

[0010] In one embodiment, the rotating base is provided with a fixing member for fixedly connecting with the screen. In one embodiment, the fixing member includes at least one or a combination of an adsorbing member, an attaching member, and a magnetic attracting member.

[0011] In one embodiment, the recognition module includes a rotation recognition unit and a pressing recognition unit. In one embodiment, the rotation recognition unit is used to determine the rotation operation of the knob based on the magnetic field intensities obtained by the first linear Hall element and any one of the second linear Hall elements. In one embodiment, the pressing recognition unit is used to determine the pressing operation of the knob based on the magnetic field intensities obtained by a plurality of second linear Hall elements in the knob gear state, where, in one embodiment, the knob gear state is the state when the second linear Hall element is located at the position of the magnetic block.

[0012] In one embodiment, a plurality of second linear Hall elements are evenly distributed along the circumferential direction of the magnetic ring. In one embodiment, the pressing recognition unit is further used to determine the pressing operations at different positions of the knob based on the magnetic field intensities obtained by the plurality of second linear Hall elements, where, in one embodiment, different positions of the knob include the positions where the second linear Hall elements are located and the positions between the second linear Hall elements.

[0013] In one embodiment, the recognition module further includes a data filtering unit for filtering the magnetic field intensities obtained by the first linear Hall element and the second linear Hall element.

[0014] On the other hand, the present application further provides an electronic device, which at least includes a screen and a on-screen knob as described in any one of the above embodiments provided on both sides of the screen.

[0015] In one embodiment, the screen is used to display corresponding knob information or operation information at the corresponding position of the on-screen knob according to the operation of the on-screen knob. In one embodiment, the knob information is the parameter information of the knob itself, and in one embodiment, the operation information is the parameter information of the object controlled by the knob.

[0016] For the above on-screen knob and electronic device, by separating the knob body and the induction component, which are respectively located on both sides of the screen, the knob body is provided with a magnetic ring, and a number of magnetic blocks are arranged in sequence along the circumferential direction of the magnetic ring, and the polarities of adjacent magnetic blocks are opposite. The induction component at least includes a first linear Hall element, a number of second linear Hall elements and an identification module. The identification module is used to determine the operation of the knob based on the magnetic field intensity obtained by the induction component. Among them, in the reference state of the knob, the center position between the first linear Hall element and any adjacent magnetic block corresponds, and a number of second linear Hall elements respectively correspond to the positions of different magnetic blocks. In this way, the rotation operation of the knob can be determined based on the magnetic field intensity obtained by the first linear Hall element and the second linear Hall element, and the pressing operation of the knob can be determined based on the magnetic field intensity obtained by the second linear Hall element. The rotation and pressing operations are independently implemented, and both the pressing and rotation can be realized separately, or the pressing and rotation functions can be realized simultaneously. At the same time, the knob can resist the pressing interference during rotation and the rotation interference during pressing, greatly increasing the stability of the knob. In addition, the overall structure is suitable for the application scenario of a hollow knob, greatly improving the practicability of the knob. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is the overall structure diagram of the on-screen knob in one embodiment;

[0019] Figure 2 It is the structural block diagram of the identification module in the on-screen knob in one embodiment.

[0020] Description of the Reference Numerals:

[0021] 1 - Knob body; 11 - Magnetic ring; 12 - Through hole; 13 - Rotating seat; 14 - Rotating ring; 2 - Induction component; 21 - First linear Hall element; 22 - Second linear Hall element; 23 - Identification module; 231 - Rotation identification unit; 232 - Pressing identification unit; 233 - Data filtering unit. Detailed Embodiments

[0022] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant accompanying drawings. Embodiments of the present application are shown in the drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned accompanying drawings are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "including / comprising" or "having" and the like specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0026] As described in the background art, there are technical problems in the prior art that the knob is not applicable to a hollow structure and has poor stability. For this reason, the present invention provides a technical solution for an on-screen knob and an electronic device.

[0027] In one embodiment, refer to Figure 1 and Figure 2, a on - screen knob is provided, including: a knob body 1 and an induction component 2 located on both sides of the screen respectively. The knob body 1 is provided with a magnetic ring 11. A plurality of magnetic blocks are arranged in sequence along the circumferential direction of the magnetic ring 11, and the polarities of adjacent magnetic blocks are opposite. The induction component 2 at least includes a first linear Hall element 21, a plurality of second linear Hall elements 22, and an identification module 23. The identification module 23 is used to determine the operation of the knob based on the magnetic field intensity obtained by the induction component 2. Among them, in the reference state of the knob, the center position between the first linear Hall element 21 and any adjacent magnetic block corresponds, and the plurality of second linear Hall elements 22 respectively correspond to the positions of different magnetic blocks.

[0028] Specifically, the knob body of this embodiment is provided with a magnetic ring. The magnetic ring is formed by arranging a plurality of magnetic blocks in sequence to form a ring, and the polarities of adjacent magnetic blocks are set to be opposite, that is, the plurality of magnetic blocks are arranged in a ring in the order of "... S, N, S, N, S...", and the magnetic poles of the magnetic blocks face the screen side. Among them, the plurality of magnetic blocks can be embedded in a ring - shaped fixing member to form a magnetic ring. The ring - shaped fixing member can be the knob itself or a component fixedly connected to the knob. Preferably, in this embodiment, the magnetic ring is combined with the knob body, and the knob body and the magnetic ring rotate coaxially and synchronously.

[0029] Specifically, the induction component of this embodiment at least includes a first linear Hall element, a plurality of second linear Hall elements, and an identification module. The linear Hall element of this embodiment outputs different voltage signals as the magnetic field changes. The specific principle is: the output voltage of the linear Hall is proportional to the magnetic field intensity passing through itself. According to the magnetic field characteristics and intensity, its output voltage rises or falls. By the change of the magnetic field intensity, the change of the corresponding position data can be known, and the relationship between the output voltage and the polarity and intensity of the induced magnetic field is fixed. For example, if the N - pole approaches the Hall circuit from the back, the output voltage decreases; if the S - pole approaches from the back, the output voltage increases; if approaching from the front, the output state is exactly opposite to approaching from the back. It should be noted that the first linear Hall element and the second linear Hall element in this embodiment belong to the same type of element in terms of actual principle. In this embodiment, for the sake of structural and functional distinction, "first" and "second" are used for distinction to facilitate a better understanding of the technical solution of this embodiment. The identification module of this embodiment determines the operation of the knob based on the magnetic field intensity obtained by the induction component. Among them, the identification module can specifically judge the knob operation based on a processor or a micro - control unit, or can also judge the knob operation based on a voltage comparison circuit.

[0030] Specifically, in the reference state of the knob in this embodiment, the center position between the first linear Hall element and any adjacent magnetic block is corresponding, and several second linear Hall elements are respectively corresponding to the positions of different magnetic blocks. Among them, the reference state of the knob is the starting state of the knob rotation and also the reference for the knob rotation judgment. The center position between the magnetic blocks is the position where the magnetic field intensity between the magnetic blocks is zero, and the position of the magnetic block is the position of the N pole or S pole in the magnetic ring. The position of the N pole corresponds to the maximum value of the positive magnetic field intensity, and the position of the N pole corresponds to the maximum value of the reverse magnetic field intensity.

[0031] In the reference state of the knob in this embodiment, the recognition module can determine the rotation operation of the knob based on the magnetic field intensities obtained by the first linear Hall element and the second linear Hall element: specifically, different rotation operations of the knob in different directions correspond to different regular changes in the magnetic field intensity. For example, when the knob rotates and the first linear Hall element moves relative to the magnetic ring towards its adjacent N-pole side, the change rule of the magnetic field intensity obtained by the first linear Hall element is: 0 → Max mT → 0 → Min mT → 0... On the contrary, when the first linear Hall element moves relative to the magnetic ring towards its adjacent S-pole side, the change rule of the magnetic field intensity obtained by the first linear Hall element is: 0 → Min mT → 0 → Max mT → 0... In this way, the recognition module can judge and identify the rotation direction of the knob, and can determine the rotation amount of the knob according to the magnetic field change period. For example, each N-pole magnetic block is set with one gear position. The above from 0 → Min mT → 0 → Max mT → 0 realizes the rotation of one gear position. Another example is that each N-pole and S-pole magnetic block is set with one gear position. The above from 0 → Min mT → 0 → Max mT → 0 realizes the rotation of two gear positions.

[0032] Furthermore, in this embodiment, on the basis of the above first linear Hall element, a second linear Hall element is also combined for rotation operation recognition. Among them, corresponding to the situation of the knob rotation in the above example, assuming that the second linear Hall is arranged at the position of the N-pole magnetic block in the reference state, then in both rotation directions, the change rule of the magnetic field intensity obtained by the second linear Hall element is: Max mT → 0 → Min mT → 0 → Max mT. In this way, it can assist in judging whether the knob rotates. That is, when the second linear Hall element detects the above change rule, it recognizes that the knob has rotated, and can recognize the rotation amount of the knob. Combining with the first linear Hall element, the rotation direction of the knob can be obtained. At the same time, the second linear Hall element can also filter out the interference of pressing during the knob rotation. Among them, during the knob rotation, if there is a pressing, it can be directly recognized from the second linear Hall element, thereby filtering out the interference of pressing and making the judgment of the knob rotation more stable and reliable.

[0033] In this embodiment, in the reference state of the knob, the recognition module can determine the pressing operation of the knob based on the magnetic field intensity obtained by the second linear Hall element: specifically, the position where the knob is pressed corresponds to the position of the second linear Hall element. When there is a pressing operation of the knob at the position of the second linear Hall element, since the distance between the second linear Hall element and the magnetic block decreases, the absolute value of the magnetic field intensity increases accordingly. Thus, based on the change in the magnetic field intensity, it can be recognized whether there is a pressing operation of the knob at the position of the second linear Hall element.

[0034] The above-mentioned on-screen knob separates the knob body and the induction component, which are located on both sides of the screen respectively. The knob body is provided with a magnetic ring, and a plurality of magnetic blocks are arranged in sequence along the circumferential direction of the magnetic ring. The polarities of adjacent magnetic blocks are opposite. The induction component at least includes a first linear Hall element, a plurality of second linear Hall elements and a recognition module. The recognition module is used to determine the operation of the knob based on the magnetic field intensity obtained by the induction component. Among them, in the reference state of the knob, the center position between the first linear Hall element and any adjacent magnetic block corresponds, and a plurality of second linear Hall elements respectively correspond to the positions of different magnetic blocks. Thus, based on the magnetic field intensity obtained by the first linear Hall element and the second linear Hall element, the rotation operation of the knob can be determined, and based on the magnetic field intensity obtained by the second linear Hall element, the pressing operation of the knob can be determined. The rotation and pressing operations are independently realized. It can realize pressing and rotation respectively, or can realize the functions of pressing and rotation at the same time. At the same time, when the knob rotates, it can resist the pressing interference, and when it is pressed, it can resist the rotation interference, which greatly improves the stability of the knob. In addition, the overall structure is applicable to the application scenario of a hollow knob, which greatly improves the practicability of the knob.

[0035] In one embodiment, referring to Figure 1 , a through hole 12 is formed in the knob body 1 along its rotation axis direction, and the magnetic blocks of the magnetic ring 11 are arranged along the circumferential direction of the through hole 12. Specifically, the through hole 12 of the knob body 1 passes through the center of the magnetic ring 11, and the central axis of the through hole 12 serves as the rotation axis for the rotation of the magnetic ring 11. Thus, the application scenario of a hollow knob can be satisfied.

[0036] In one embodiment, the through-hole is used to transmit the display content on the screen, and a transparent medium or a translucent medium is provided in the through-hole. Specifically, the through-hole of this embodiment can be used to transmit the display content on the screen. Among them, the screen can display corresponding knob information or operation information at the corresponding position of the on-screen knob according to the operation of the on-screen knob. The knob information is the parameter information of the knob itself, such as gear position, direction operation indication, status indication, etc. The operation information is the parameter information of the object controlled by the knob. For example, if the knob is used to control the temperature, the temperature information can be displayed. If the knob is used to control the wind force, the wind force information can be displayed, etc. Further, in order to better transmit the display content on the screen, a transparent medium or a translucent medium can be provided in the through-hole, such as a plane mirror, a plano-convex lens, to enhance the display effect of the display content. The transparent medium or the translucent medium can also be, for example, transparent or translucent plastic, glass, etc.

[0037] In one embodiment, the through-hole of this embodiment can also be used as the installation space of the knob for installing other components. For example, a touch button for interacting with the touch screen can be provided in the through-hole of the knob. For another example, a decorative piece can be provided in the through-hole of the knob to indicate the function of the knob. For another example, a thermometer or a hygrometer can be provided in the through-hole of the knob to indicate the environmental parameters around the knob, etc. In this way, the extended function of the knob can be greatly improved.

[0038] In one embodiment, referring to Figure 1 , the knob body 1 of this embodiment includes a rotating base 13 and a rotating ring 14. The rotating ring 14 is sleeved on the rotating base 13, and a magnetic ring 11 is provided in the rotating ring 14. Specifically, referring to Figure 1 , the rotating base 13 can be a hollow cylindrical structure, and a contact surface extends on the side in contact with the screen. The rotating ring 14 is sleeved on the rotating base 13. A texture structure can be provided on the outer side of the rotating ring 14 to facilitate increasing the contact force of the knob operation. The magnetic ring 11 is provided in the rotating ring 14 and rotates synchronously with the rotating ring 14. Among them, the magnetic ring 11 and the rotating ring 14 can be integrally formed, that is, the magnetic block is directly embedded in the rotating ring 14 to form the magnetic ring 11. The magnetic ring 11 and the rotating ring 14 can be two components, that is, the magnetic block can also be embedded in a connecting piece to form the magnetic ring 11, and the magnetic ring 11 is connected to the rotating ring 14 through the connecting piece.

[0039] In one embodiment, the rotating base of this embodiment is provided with a fixing member for fixedly connecting with the screen, and the fixing member includes at least one or a combination of an adsorbing member, an attaching member, a magnetic member, etc. Specifically, the fixing member is, for example, an adhesive tape, a suction cup, a magnet, etc. The adhesive tape fixes the knob base on the screen by adhesion, the suction cup fixes the knob base on the screen by adsorption, and the magnet fixes the knob base on the screen by magnetic attraction. In this way, the above methods can achieve the fixed or detachable connection between the knob body and the screen without damaging the screen, ensuring the integrity of the screen and improving the user-friendliness of the knob.

[0040] In one embodiment, refer to Figure 2 , the recognition module 23 of this embodiment includes a rotation recognition unit 231 and a pressing recognition unit 232. The rotation recognition unit 231 is used to determine the rotation operation of the knob based on the magnetic field intensities obtained by the first linear Hall element and any one of the second linear Hall elements. The pressing recognition unit 232 is used to determine the pressing operation of the knob based on the magnetic field intensities obtained by several second linear Hall elements in the knob gear state, where the knob gear state is the state when the second linear Hall element is located at the position of the magnetic block.

[0041] Specifically, the rotation recognition unit of this embodiment determines the rotation operation of the knob based on the magnetic field intensities obtained by the first linear Hall element and any one of the second linear Hall elements. Among them, in this embodiment, the second linear Hall element is combined with the first linear Hall element to identify the rotation operation of the knob. In this way, when the knob rotates, the interference of knob pressing can be filtered, greatly improving the stability of the knob. For the specific recognition principle, refer to the above text and will not be elaborated here.

[0042] Specifically, the pressing recognition unit of this embodiment determines the pressing operation of the knob based on the magnetic field intensities obtained by several second linear Hall elements in the knob gear state. Among them, in the knob gear state, that is, when the second linear Hall element is located at the position of the magnetic block, the pressing of the knob is recognized. On the one hand, taking this as the detection position of knob pressing, the sensitivity of the magnetic field intensity of the knob to distance change is the largest, and the pressing state of the knob can be determined more accurately in this way. On the other hand, taking this as the detection position of knob pressing and not detecting the pressing state at other positions, the magnetic field intensity of the first linear Hall element is zero and does not change with pressing. In this way, when the knob is pressed, it will not be misjudged as a real rotation, and the rotation of the knob will not affect the recognition of knob pressing, greatly improving the stability of the knob. For the specific recognition principle, refer to the above text and will not be elaborated here.

[0043] In one embodiment, refer to Figure 1, in this embodiment, a plurality of second linear Hall elements 22 are evenly distributed along the circumferential direction of the magnetic ring 11. The pressing recognition unit is further configured to determine the pressing operations at different positions of the knob based on the magnetic field intensities obtained by the plurality of second linear Hall elements 22. Among them, different positions of the knob include the positions where the second linear Hall elements 22 are located and the positions between the second linear Hall elements 22. Specifically, referring to Figure 1 , in this embodiment, a second linear Hall element 22 can be provided at the positions of the four magnetic blocks on the upper, lower, left, and right of the knob to identify the pressing operations at the four points, that is, if the absolute value of the magnetic field intensity at a certain point increases, it means that there is a press at this point. It should be noted that for the second linear Hall element corresponding to the position of the N pole of the magnetic block, when the knob is pressed here, the magnetic field intensity of the second linear Hall element increases: Min mT + Inc mT. For the second linear Hall element corresponding to the position of the S pole of the magnetic block, when the knob is pressed here, the magnetic field intensity of the second linear Hall element decreases: Min mT - Inc mT, and Inc mT is the change amount of the magnetic field intensity when pressed.

[0044] Further, in the actual process, when a point is pressed, the magnetic field intensities of its adjacent points will also increase slightly. Therefore, the pressing recognition module has a filtering function. Specifically, a magnetic field change amount or a pressing threshold for pressing can be set, and it is recognized as a pressing operation when the conditions are met, otherwise, it is filtered out.

[0045] Further, based on the second linear Hall elements at the above four points, the upper left, lower left, upper right, and lower right four directions can also be recognized. Among them, for these four points, the pressing recognition unit recognizes based on the magnetic field intensities obtained by two adjacent second linear Hall elements of the pressing point. When the absolute values of the magnetic field intensities of two adjacent second linear Hall elements both increase or decrease, it means that there is a knob pressing operation at the position between them.

[0046] In one embodiment, referring to Figure 2 , the recognition module 23 of this embodiment further includes a data filtering unit 233 for filtering the magnetic field intensities obtained by the first linear Hall element and the second linear Hall element. Specifically, in addition to filtering the magnetic field intensity change data of slightly pressed during the actual pressing process mentioned above, in the actual operation process of this embodiment, invalid values or mutation values will also be generated due to external environmental interference and other factors. For these data, this embodiment filters them through the data filtering unit 233 to avoid interfering with the normal use of the knob.

[0047] In one embodiment, an electronic device based on any of the above embodiments is provided, which at least includes a screen and on-screen knobs as described in any of the above embodiments provided on both sides of the screen.

[0048] In one embodiment, the screen is configured to display corresponding knob information or operation information at the corresponding position of the on-screen knob according to the operation of the on-screen knob. The knob information is the parameter information of the knob itself, and the operation information is the parameter information of the object controlled by the knob. Specifically, the knob information includes, for example, gear position, direction operation indication, status indication, etc. The operation information includes, for example, if the knob is used to control temperature, the temperature information can be displayed; if the knob is used to control wind force, the wind force information can be displayed, etc. In this way, the diversified display meets the personalized and diversified requirements of the knob.

[0049] For the specific definition of the electronic device, reference can be made to the definition of the on-screen knob in the above text, which will not be elaborated here.

[0050] In the above-mentioned electronic device, the knob body and the sensing component are separated and located on both sides of the screen respectively. The knob body is provided with a magnetic ring, and a number of magnetic blocks are arranged in sequence along the circumferential direction of the magnetic ring. The polarities of adjacent magnetic blocks are opposite. The sensing component includes at least one first linear Hall element, a number of second linear Hall elements and an identification module. The identification module is used to determine the operation of the knob based on the magnetic field intensity obtained by the sensing component. Among them, in the reference state of the knob, the center position between the first linear Hall element and any adjacent magnetic block corresponds, and a number of second linear Hall elements correspond to the positions of different magnetic blocks respectively. In this way, based on the magnetic field intensity obtained by the first linear Hall element and the second linear Hall element, the rotation operation of the knob can be determined. Based on the magnetic field intensity obtained by the second linear Hall element, the pressing operation of the knob can be determined. The rotation and pressing operations are independently realized. It can either realize pressing and rotation separately or realize the functions of pressing and rotation simultaneously. At the same time, when the knob rotates, it can resist the interference of pressing, and when pressing, it can resist the interference of rotation, which greatly improves the stability of the knob. In addition, the overall structure is applicable to the application scenario of a hollow knob, which greatly improves the practicability of the knob.

[0051] In the description of this specification, the description with reference to terms such as "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or features described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0052] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as the scope described in this specification.

[0053] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A on-screen knob, characterized in that, Comprising: A knob body and an induction component respectively located on both sides of the screen. The knob body is provided with a magnetic ring, and a plurality of magnetic blocks are arranged in sequence along the circumferential direction of the magnetic ring. The adjacent magnetic blocks have opposite polarities. The induction component at least includes a first linear Hall element, a plurality of second linear Hall elements, and an identification module. The identification module is used to determine the operation of the knob based on the magnetic field intensity obtained by the induction component. Wherein, in the reference state of the knob, the center position between the first linear Hall element and any adjacent magnetic block corresponds, and a plurality of the second linear Hall elements respectively correspond to the positions of different magnetic blocks; The knob body is provided with a through hole along its rotation axis direction, and the magnetic blocks of the magnetic ring are arranged along the circumferential direction of the through hole; The knob body includes a rotating seat and a rotating ring, the rotating ring is sleeved on the rotating seat, and the magnetic ring is arranged inside the rotating ring; The identification module includes a rotation identification unit and a pressing identification unit. The rotation identification unit is used to determine the rotation operation of the knob based on the magnetic field intensity obtained by the first linear Hall element and any one of the second linear Hall elements. The pressing identification unit is used to determine the pressing operation of the knob based on the magnetic field intensity obtained by a plurality of the second linear Hall elements in the knob gear state. Wherein, the knob gear state is the state when the second linear Hall element is located at the position of the magnetic block; A plurality of the second linear Hall elements are evenly distributed along the circumferential direction of the magnetic ring. The pressing identification unit is further used to determine the pressing operations at different positions of the knob based on the magnetic field intensity obtained by the plurality of second linear Hall elements. Wherein, the different positions of the knob include the positions where the second linear Hall elements are located and the positions between the second linear Hall elements.

2. The on-screen knob according to claim 1, wherein The through hole is used to transmit the display content on the screen, and a transparent medium or a semi-transparent medium is provided in the through hole.

3. The on-screen knob according to claim 1, wherein The rotating seat is provided with a fixing member for fixedly connecting with the screen. The fixing member at least includes one or more combinations of an adsorbing member, an attaching member, and a magnetic attracting member.

4. The on-screen knob according to claim 1, characterized in that, The identification module further includes a data filtering unit for filtering the magnetic field intensity obtained by the first linear Hall element and the second linear Hall elements.

5. An electronic device, characterized in that, At least including a screen and a on-screen knob as described in any one of claims 1 to 4 provided on both sides of the screen.

6. The electronic device according to claim 5, wherein The screen is used to display corresponding knob information or operation information at the corresponding position of the on-screen knob according to the operation of the on-screen knob. The knob information is the parameter information of the knob itself, and the operation information is the parameter information of the object controlled by the knob.

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