Knob module, knob control circuit, electronic equipment and control method thereof

Abstract

The invention discloses a rotary knob module, a rotary knob control circuit, electronic equipment and a control method thereof, and relates to the technical field of electronic equipment, the rotary knob module comprises a rotary knob cover, the rotary knob cover is connected to a rotating piece in a limiting mode, and the rotary knob cover penetrates through the rotating piece through a rotating shaft to be fixed to a rotary knob base plate; a wireless charging transmitting chip is arranged on the knob cover; the rotating member is provided with a wireless charging receiving chip corresponding to the wireless charging transmitting chip, and at least one vibration element electrically connected with the wireless charging receiving chip. According to the knob module provided by the invention, the technical problem that the vibration feedback strength of an existing knob is insufficient is solved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a knob module, a knob control circuit, an electronic device and a control method thereof. Background Art

[0002] A knob is a widely used device used to perform basic control functions, such as adjusting the volume of a radio or selecting different operating modes of a washing machine.

[0003] When using knob functions, vibration is often used to provide real-time feedback of user operation. However, most solutions use the body of the device as a vibration trigger, or use a brushless motor and control the motor's high-frequency forward and reverse motion to generate vibration feedback. However, due to both the transmission loss of the body vibration and the structural limitations of the brushless motor itself, the vibration is relatively weak.

[0004] Therefore, the existing knob still has the problem of insufficient vibration feedback strength. Summary of the Invention

[0005] The main purpose of this application is to propose a knob module, a knob control circuit, an electronic device and a control method thereof, aiming to solve the technical problem of insufficient vibration feedback force of existing knobs.

[0006] To achieve the above-mentioned purpose, the present application proposes a knob module, which includes a knob cover, which is limitedly connected to the rotating member and fixed to the knob substrate via a rotating shaft passing through the rotating member; A wireless charging transmitter chip is set on the knob cover; The rotating member is provided with a wireless charging receiving chip corresponding to the wireless charging transmitting chip, and at least one vibration element electrically connected to the wireless charging receiving chip.

[0007] In one embodiment, a first distance exists between the knob cover and the rotating member in the radial direction and / or the axial direction, so that the rotating member maintains a distance from the knob cover during vibration.

[0008] In one embodiment, the wireless charging transmitting chip includes a wireless charging transmitting coil, and the wireless charging receiving chip includes a wireless charging receiving coil; The wireless charging transmitting coil and the wireless charging receiving coil are arranged relative to each other so that when the knob cover rotates, the wireless charging transmitting coil and the wireless charging receiving coil remain coupled.

[0009] In one embodiment, the knob cover includes a base, and a cylindrical protrusion on the base; The wireless charging transmitting coil is arranged on the base, and the wireless charging receiving coil is arranged on the top or bottom of the rotating member; And / or, the wireless charging transmitting coil is arranged on the side elevation of the cylindrical protruding member, and the wireless charging receiving coil is arranged on the inner side elevation of the rotating member.

[0010] In one embodiment, an emission array is provided on the side of the rotating member facing the knob cover, and a detection array is provided on the side of the rotating cover facing the emission array. The detection array includes multiple detection sensors for detecting the emission medium emitted by the emission array.

[0011] In one embodiment, the transmitting array includes a first transmitting end, a second transmitting end, and a third transmitting end; The detection array includes at least three detection sensors evenly distributed on a circumference, and adjacent detection sensors are spaced at a first position angle; The second position angle between the first transmitting end and the second transmitting end is a positive integer multiple of the first position angle; When the first emitting end and the second emitting end are aligned with the detection sensors, the projection position of the third emitting end is located at a middle position between any pair of adjacent detection sensors.

[0012] In one embodiment, the third position angle between the third transmitting end and the first transmitting end or the second transmitting end is N+1 / 2 times the first position angle, where N is an integer not less than zero.

[0013] In one embodiment, the first transmitting end is a first permanent magnet, the second transmitting end is a second permanent magnet, and the third transmitting end is a third permanent magnet, and the first permanent magnet, the second permanent magnet, and the third permanent magnet have the same magnetic field direction in the vertical direction; The detection sensor is a Hall sensor.

[0014] In addition, to achieve the above-mentioned object, the present application further provides a knob control circuit, which is applied to the above-mentioned knob module, wherein the knob control circuit includes a main control circuit provided on the knob cover, and a sub-control circuit provided on the knob member, wherein the main control circuit and the sub-control circuit are wirelessly connected; The main control circuit includes a main control unit, which is electrically connected to the power supply unit and the wireless charging transmitter chip respectively, and the power supply unit is electrically connected to the wireless charging transmitter chip; The sub-control circuit includes a sub-control unit, which is electrically connected to the wireless charging receiving chip and the power management unit respectively. The power management unit is electrically connected to at least one vibration element through the vibrator driving unit.

[0015] In one embodiment, the main control circuit further comprises a detection array, the detection array comprising at least three detection sensors; The detection array is electrically connected to the main control unit and the power supply unit respectively.

[0016] In addition, to achieve the above-mentioned purpose, the present application also provides an electronic device, which includes the above-mentioned knob control circuit.

[0017] In addition, to achieve the above-mentioned purpose, the present application also provides a control method of an electronic device, which is applied to the above-mentioned electronic device. The control method of the electronic device includes the following steps: The main control circuit turns on the wireless charging transmitter chip and establishes a wireless communication connection with the sub-control circuit; The main control circuit obtains the rotation state information of the knob module; The main control circuit generates a vibration control command according to the rotation state information, and sends the vibration control command to the sub-control circuit, so that the sub-control circuit controls the vibration element to vibrate according to the received vibration control command.

[0018] In one embodiment, an emission array is provided on a side of the rotating member facing the knob cover, and a detection array is provided on a side of the rotating cover facing the emission array. The detection array includes a plurality of detection sensors for detecting the emission medium emitted by the emission array. The steps of the main control circuit obtaining the rotation state information of the knob module include: The main control circuit obtains sensor signals of detection sensors in the detection array and determines alignment status information of the emission array and the detection array according to the sensor signals; The main control circuit determines the rotation position and / or rotation direction of the rotating member based on the alignment status information; The main control circuit uses the rotation position and / or rotation direction of the rotating member as the rotation state information of the knob module.

[0019] In one embodiment, the transmitting array includes a first transmitting end, a second transmitting end, and a third transmitting end; the detecting array includes at least three detecting sensors evenly distributed on a circumference; After synchronously detecting that the first transmitting end and the second transmitting end are aligned with the detection sensor, determining the rotation position of the rotating member according to the setting positions of the two detection sensors that detect the alignment; The main control circuit determines the rotation position of the rotating member according to the alignment state information and the setting position of the detection sensor that detects the alignment after detecting the alignment of the third transmitting end; The main control circuit uses the rotation position of the rotating part as the rotation state information of the knob module.

[0020] In one embodiment, the step of determining the rotation direction of the rotating member by the main control circuit according to the alignment status information includes: The main control circuit determines, based on the alignment state information, after detecting that the current alignment state is that the third transmitter is aligned with the detection sensor, that the setting position of the detection sensor that detects the current alignment of the third transmitter is the first detection position, and sets the projection position of the third transmitter as the second detection position when the detection sensor detects the alignment of the first transmitter and the second transmitter next time; Alternatively, after detecting that the current alignment state is that the first transmitting end and the second transmitting end are aligned with the detection sensor, the projection position of the third transmitting end at this time is determined as the first detection position, and the setting position of the detection sensor at which the alignment of the third transmitting end is detected next time is used as the second detection position; The main control circuit uses the direction from the first detection position to the second detection position as the rotation direction of the rotating member, and uses the rotation direction of the rotating member as the rotation state information of the knob module.

[0021] The technical solution of the present application provides a knob module, comprising a knob cover, which is positionally connected to a rotating member and secured to a knob base via a rotating shaft passing through the rotating member. The knob cover is provided with a wireless charging transmitter chip and at least one vibration element electrically connected to the wireless charging transmitter chip, while the rotating member is provided with a wireless charging receiver chip corresponding to the wireless charging transmitter chip. Thus, the present application, on the one hand, disposes at least one vibration element on the rotating member, so that when a user rotates the rotating member, the vibration of the vibration element is directly transmitted from the rotating member to the user. Compared to the vibration feedback from the body or a brushless motor, the vibration feedback provided by the vibration element on the rotating member is clearer, and richer vibration feedback can be provided by adjusting the driving parameters of the vibration element, such as the duty cycle and period. On the other hand, the present application achieves contactless power supply to the vibration element through the combination of a wireless charging transmitter chip and a wireless charging receiver chip. This is more stable and reliable than a circuit connection method using spring contact, and eliminates the risk of circuit connection failure due to excessive wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of an embodiment of a knob module provided by this application; Figure 2 A schematic diagram of the coil arrangement of the knob module involved in an embodiment of the present application; Figure 3This is a coil structure diagram of the knob module involved in an embodiment of the present application; Figure 4 This is a structural diagram of another embodiment of the knob module provided by the present application; Figure 5 Schematic diagram of the transmitting array and receiving array provided in this application; Figure 6 This is a circuit diagram of a knob control circuit according to an embodiment of the present application; Figure 7 A flowchart of a feasible embodiment of the present application; Figure 8 A flowchart of a control method for an electronic device provided in this application; Figure 9 A schematic diagram of a scenario for identifying a rotation angle according to an embodiment of the present application; Figure 10 This is a schematic diagram of another scenario for identifying the rotation angle involved in an embodiment of the present application.

[0024] Description of Figure Numbers: 100, knob cover; 101, base; 102, cylindrical protrusion; 110, wireless charging transmitter chip; 111, wireless charging transmitter coil; 120, detection array; 121, detection sensor; 130, main control circuit; 131, main control unit; 132, power supply unit; 200, rotating member; 210, wireless charging receiving chip; 211, wireless charging receiving coil; 220, vibration element; 230, transmitting array; 231, first transmitting end; 232, second transmitting end; 233, third transmitting end; 240, sub-control circuit; 241, sub-control unit; 242, power management unit; 243, vibrator driving unit; 300, rotating shaft; 400, knob substrate.

[0025] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0027] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] This application proposes a knob module.

[0030] See also Figure 1 In one embodiment of the present application, the knob module includes a knob cover 100, which is limitedly connected to the rotating member 200. The knob cover 100 passes through the rotating member 200 through the rotating shaft 300 and is fixed to the knob substrate 400; The knob cover 100 is provided with a wireless charging transmitter chip 110; The rotating member 200 is provided with a wireless charging receiving chip 210 corresponding to the wireless charging transmitting chip 110 , and at least one vibration element 220 electrically connected to the wireless charging receiving chip 210 .

[0031] It should be noted that the vibration element 220 is an element that can generate mechanical vibration, such as a rotor motor, a linear motor, etc.

[0032] like Figure 1As shown, the knob module includes a knob cover 100, and the rotating member 200 has a concave cavity for accommodating the knob cover 100 or the lower structure of the knob cover 100, so that the knob cover 100 is limitedly connected to the rotating member 200. The knob cover 100 passes through the rotating member 200 through the rotating shaft 300 and is fixed to the knob substrate 400, so that the rotating member 200 can rotate around the rotating shaft 300 relative to the knob cover 100 and the knob substrate 400. The rotating member 200 can be circular, polygonal, irregular, etc. in the top view direction, and this embodiment does not limit this. The vibration element 220 can be set at any position on the rotating member 200. Of course, in order to ensure the consistency of the vibration feeling, multiple vibration elements 220 can be set evenly distributed in multiple directions on the rotating member 200. Because the vibration element 220 on the rotating member 200 requires electrical energy to operate, the knob cover 100 is equipped with a wireless charging transmitter chip 110, and the rotating member 200 is equipped with a wireless charging receiver chip 210 corresponding to the wireless charging transmitter chip 110. At least one vibration element 220 is electrically connected to the wireless charging receiver chip 210. The wireless charging transmitter chip 110 on the knob cover 100 can convert electrical energy into an alternating magnetic field. The wireless charging receiver chip 210 on the rotating member 200 captures this alternating magnetic field and generates electrical energy to drive the vibration element 220 to operate. Therefore, on the one hand, this embodiment sets at least one vibration element 220 on the rotating member 200. Therefore, when the user rotates the rotating member 200, the vibration of the vibration element 220 is directly transmitted from the rotating member 200 to the user. Compared with the vibration feedback of the body or the brushless motor, the vibration feedback brought by the vibration element 220 on the rotating member 200 is clearer, and by adjusting the driving parameters such as the duty cycle and period of the vibration element 220, more abundant vibration feedback can be provided. On the other hand, this embodiment realizes contactless power supply to the vibration element 220 through the combination of the wireless charging transmitter chip 110 and the wireless charging receiver chip 210. With this contactless structure, this embodiment has a more stable working state compared to contact circuit connections, such as those using spring clips.

[0033] In a feasible embodiment, there is a first distance between the knob cover 100 and the rotating member 200 in the radial direction and / or the axial direction, so that the rotating member 200 maintains a distance from the knob cover 100 during the vibration process.

[0034] In this embodiment, a first distance is provided between the knob cover 100 and the rotating member 200 in the radial and / or axial directions. The first distance can be determined based on the vibration amplitude of the vibrating element 220 in the rotating member 200. The first distance is positively correlated with the vibration amplitude of the vibrating element 220; that is, the greater the vibration amplitude, the greater the first distance. This ensures that the rotating member 200 always maintains a certain distance from the knob cover 100 during vibration, thereby preventing collision and friction. This ensures that the knob cover 100 and the rotating member 200 always maintain a non-contact state, further reducing wear on the knob cover 100 and the rotating member 200.

[0035] In one feasible embodiment, the wireless charging transmitting chip 110 includes a wireless charging transmitting coil 111 , and the wireless charging receiving chip 210 includes a wireless charging receiving coil 211 ; The wireless charging transmitting coil 111 and the wireless charging receiving coil 211 are arranged opposite to each other, so that when the rotating member 200 rotates, the wireless charging transmitting coil 111 and the wireless charging receiving coil 211 remain coupled.

[0036] In this embodiment, the wireless charging transmitter chip 110 includes at least a wireless charging transmitter coil 111. The wireless charging transmitter chip 110 may also include auxiliary units such as a rectifier circuit unit, a resonant network unit, and a voltage regulator unit. The wireless charging receiver chip 210 includes at least a wireless charging receiver coil 211. The wireless charging receiver chip 210 may also include auxiliary units such as a rectifier circuit unit, a resonant network unit, and a voltage regulator unit. The wireless charging transmitter coil 111 and the wireless charging receiver coil 211 are arranged relative to each other, that is, the geometric centers of the wireless charging transmitter coil 111 and the wireless charging receiver coil 211 coincide with each other and their normal directions are consistent. This improves coupling efficiency while ensuring that the wireless charging transmitter coil 111 and the wireless charging receiver coil 211 remain coupled when the rotating member 200 rotates.

[0037] In a feasible embodiment, the knob cover 100 includes a base 101 and a cylindrical protrusion 102 on the base 101; The wireless charging transmitting coil 111 is disposed on the base 101 , and the wireless charging receiving coil 211 is disposed on the bottom or top of the rotating member 200 ; And / or, the wireless charging transmitting coil 111 is disposed on a side elevation of the cylindrical protruding member 102 , and the wireless charging receiving coil 211 is disposed on an inner side elevation of the rotating member 200 .

[0038] In one example, Figure 1As shown, the wireless charging transmitter chip 110 can be arranged on the base 101 of the knob cover 100, and the wireless charging receiving coil 211 is arranged at the bottom of the rotating member 200. The base 101 of the knob cover 100 and the bottom of the rotating member 200 are arranged facing each other, which can improve the coupling efficiency of the alternating magnetic field between the wireless charging receiving coil 211 on the bottom of the rotating member 200 and the wireless charging transmitter chip 110 on the base 101. In another example, as Figure 2 As shown, in this embodiment, the base 101 of the knob cover 100 is provided with a cylindrical protrusion 102. Thus, the wireless charging transmitter coil 111 is disposed on the side elevation of the cylindrical protrusion 102, and the wireless charging receiver coil 211 is disposed on the inner side elevation of the rotating member 200. It is understood that the area of ​​the wireless charging receiver coil 211 can cover the entire inner side elevation of the rotating member 200, or only a portion of the inner side elevation of the rotating member 200. The area of ​​the wireless charging transmitter coil 111 can cover the entire side elevation of the cylindrical protrusion 102 to ensure the stability of the alternating magnetic field received by the wireless charging transmitter coil 111, thereby making the output current of the wireless charging transmitter chip more stable. In another example, the wireless charging transmitter coil 111 is disposed on the base 101 and the side elevation of the cylindrical protrusion 102, while the wireless charging receiver coil 211 is disposed on the bottom of the rotating member 200 and the inner side elevation of the rotating member 200. In this embodiment, in the above-mentioned assembly state, a coupling can be formed between the wireless charging transmitting coil 111 and the wireless charging receiving coil 211, and the coupling can always be kept stable during the rotation of the rotating member 200 to ensure stable energy supply to the vibration element 220. As for the coil structure of the wireless charging transmitting coil 111 and the wireless charging receiving coil 211, the solution of arranging the coils on the side elevation in this embodiment is not suitable for fixing them by means of winding coils. Therefore, Figure 3 As shown, in this embodiment, the coil structure of the wireless charging transmitting coil 111 and the wireless charging receiving coil 211 can be a planar structure. Figure 3 The orange lines in the middle represent wires, and the green rectangle represents an integrated circuit board. The wireless charging transmitter coil 111 and the wireless charging receiver coil 211 can be arranged on the integrated circuit board. The integrated circuit board is then bent so that the wireless charging transmitter coil 111 is aligned with the side elevation of the cylindrical protrusion 102, and the wireless charging receiver coil 211 is aligned with the inner side elevation of the rotating member 200. This creates a pair of parallel wireless charging transmitter coils 111 and wireless charging receiver coils 211 based on the side elevation of the cylindrical protrusion 102. As a result, when the wireless charging receiver coil 211 on the rotating member 200 rotates about the rotation axis 300, a stable coil distance and a nearly stable coupling state are maintained.

[0039] In a feasible embodiment, an emitting array 230 is provided on the side of the rotating member 200 facing the knob cover 100, and a detection array 120 is provided on the side of the knob cover 100 facing the emitting array 230. The detection array 120 includes a plurality of detection sensors 121 for detecting the emitting medium emitted by the emitting array 230.

[0040] In this embodiment, an emitting array 230 is disposed on the side of the rotating member 200 facing the knob cover 100. This emitting array 230 can include at least one emitting terminal, which can emit an emitting medium (e.g., magnetism, light, sound waves, etc.) that can be detected by the detection sensors 121 in the detection array 120. Therefore, when the intensity of the emitting medium (e.g., magnetic field intensity, light intensity, sound wave intensity, etc.) detected by the detection sensor 121 exceeds a certain threshold, it can be determined that the detection sensor 121 is aligned with the emitting terminal. The number of detection sensors 121 in the detection array 120 can be determined based on actual needs, for example, three, six, or eight.

[0041] In a feasible embodiment, the transmitting array 230 includes a first transmitting end 231 , a second transmitting end 232 and a third transmitting end 233 ; The detection array 120 includes at least three detection sensors 121 evenly distributed on the circumference, and adjacent detection sensors 121 have a first position angle between them; The second position angle between the first transmitting end 231 and the second transmitting end 232 is a positive integer multiple of the first position angle; When the first emitting end 231 and the second emitting end 232 are aligned with the detection sensors 121 , the projection position of the third emitting end 233 is located in the middle position between any pair of adjacent detection sensors 121 .

[0042] It should be noted that the first transmitting end 231, the second transmitting end 232, and the third transmitting end 233 in the transmitting array 230 can be transmitting units such as permanent magnets, infrared light emitters, and laser emitters that can emit a detectable transmitting medium (such as magnetism or light). The detection sensor 121 is a sensor that can detect the transmitting medium, such as a Hall effect sensor, an infrared light sensor, or a laser sensor.

[0043] like Figure 4 As shown, an emitting array 230 is provided on the side of the rotating member 200 facing the knob cover 100, and the emitting array 230 includes a first emitting end 231, a second emitting end 232 and a third emitting end 233. A detection array 120 is provided on the side of the knob cover 100 facing the emitting array 230, and the detection array 120 includes at least three detection sensors 121 evenly distributed on the circumference, and a first position angle is formed between adjacent detection sensors 121.

[0044] by Figure 4and Figure 5 For example, the detection array 120 includes six detection sensors 121 evenly distributed on the circumference, and the first position angle is 60°. Figure 4 The red dotted circles in the figure represent the projections of the first, second, and third transmitting terminals 231, 232, and 233 onto the plane of the detection array 120. The second position angle between the first and second transmitting terminals 231, 232 is a positive integer multiple of the first position angle. When the first and second transmitting terminals 231, 232 are aligned with the detection sensors 121, the projection of the third transmitting terminal 233 is located midway between any pair of adjacent detection sensors 121. That is, the third position angle between the third transmitting terminal 233 and either the first or second transmitting terminal 231, 232 is N + 1 / 2 times the first position angle, where N is an integer not less than zero. It is understood that the alignment of the transmitter (first transmitter 231, second transmitter 232, third transmitter 233) with the detection sensor 211 here refers to the state where the projection position of the transmitter coincides with the setting position of the detection sensor 211. Whether the transmitter and the detection sensor 211 are aligned can be determined by whether the magnetic field intensity detected by the detection sensor 211 is greater than a predetermined magnetic field threshold, or whether the light intensity is greater than a predetermined energy threshold. Figure 4 It can be seen that during the rotation process, since the second position angle between the first transmitting end 231 and the second transmitting end 232 is a positive integer multiple of the first position angle, when the first transmitting end 231 is aligned with the detection sensor 211, the second transmitting end 232 is necessarily aligned with the other detection sensor 211. Similarly, when the second transmitting end 232 is aligned with the detection sensor 211, the first transmitting end 231 is necessarily aligned with the other detection sensor 211. In this case, the projection position of the third transmitting end 233 falls midway between any pair of adjacent detection sensors 211. Furthermore, when the third transmitting end 233 is aligned with the detection sensor 211, the projection positions of the first transmitting end 231 and the second transmitting end 232 fall midway between the corresponding adjacent detection sensors 211.

[0045] In some feasible embodiments, the third position angle between the third transmitting end and the first transmitting end or the second transmitting end is N+1 / 2 times the first position angle, where N is an integer not less than zero.

[0046] In this embodiment, taking the detection array 120 as an example, which includes six detection sensors 121 evenly distributed on a circumference, when the second position angle between the first transmitting end 231 and the second transmitting end 232 in the transmitting array 230 is 1 times the first position angle, the position angles between the first transmitting end 231, the second transmitting end 232, and the third transmitting end 233 in the transmitting array 230 can be a combination of 60°, 150°, and 150°, a combination of 60°, 90°, and 210°, a combination of 60°, 30°, and 270°, etc. Similarly, when the second position angle between the first transmitting end 231 and the second transmitting end 232 in the transmitting array 230 is 2 times the first position angle, the position angles between the first transmitting end 231, the second transmitting end 232, and the third transmitting end 233 in the transmitting array 230 can be a combination of 120°, 90°, and 150°, a combination of 120°, 30°, and 210°, etc. Taking the detection array 120 as an example, which includes eight detection sensors 121 evenly distributed around a circumference, the angles between the first transmitting end 231, the second transmitting end 232, and the third transmitting end 233 in the transmitting array 230 can be 90°, a combination of 157.5° and 112.5°, a combination of 135°, 112.5°, and 112.5°, etc. Generally speaking, when the angles between the first transmitting end 231, the second transmitting end 232, and the third transmitting end 233 are closer in value, that is, when the transmitting ends are as far away from each other as possible, the distribution of the transmitting medium (e.g., magnetic field) emitted by the first transmitting end 231, the second transmitting end 232, and the third transmitting end 233 is more uniform, thereby reducing mutual interference and improving detection stability. Therefore, this embodiment can select a set of angle combinations with the smallest standard deviation and / or range of the position angles between the first transmitting end 231, the second transmitting end 232 and the third transmitting end 233 in the transmitting array 230, such as the angle combinations of 120°, 90° and 150°.

[0047] In some feasible embodiments, the first transmitting end 231 is a first permanent magnet, the second transmitting end 232 is a second permanent magnet, and the third transmitting end 233 is a third permanent magnet, and the first permanent magnet, the second permanent magnet, and the third permanent magnet have the same magnetic field direction in the vertical direction; The detection sensor 121 is a Hall sensor.

[0048] In this embodiment, permanent magnets can be used as the first transmitting end 231, the second transmitting end 232, and the third transmitting end 233, and correspondingly, a Hall sensor is used as the detection sensor 121. Compared with the situation where transmitting ends such as infrared light and lasers also require additional energy supply, permanent magnets do not need additional energy supply through the circuit, which can effectively reduce the energy supply pressure between the wireless charging transmitting chip 110 and the wireless charging receiving chip 210, and reduce the energy consumption of the rotating part 200. And because the Hall sensor realizes position detection by detecting changes in the magnetic field, it is not sensitive to environmental pollutants such as dust, oil, fog, liquid, and changes in light, so it has stronger adaptability to the environment. In addition, the combination of the Hall sensor and the permanent magnet has a simpler structure, is easy to install and maintain, and has lower costs.

[0049] In addition, the present application also proposes a knob control circuit.

[0050] See also Figure 6 In one embodiment of the present application, a knob control circuit is applied to the knob module as described above. The knob control circuit includes a main control circuit 130 provided on the knob cover 100 and a sub-control circuit 240 provided on the rotating member 200. The main control circuit 130 and the sub-control circuit 240 are wirelessly connected. The main control circuit 130 includes a main control unit 131, which is electrically connected to a power supply unit 132 and the wireless charging transmitter chip 110. The power supply unit 132 is electrically connected to the wireless charging transmitter chip 110. The sub-control circuit 240 includes a sub-control unit 241 , which is electrically connected to the wireless charging receiving chip 210 and the power management unit 242 . The power management unit 242 is electrically connected to at least one vibration element 220 via a vibrator driving unit 243 .

[0051] Figure 6The green arrows represent power transmission routes, and the black arrows represent signal transmission routes. This embodiment proposes a knob control circuit for use with the above-described knob module. The knob control circuit includes a main control circuit 130 disposed on the knob cover 100 and a sub-control circuit 240 disposed on the rotating member 200. The main control circuit 130 and the sub-control circuit 240 are wirelessly connected. For example, the main control unit 131 of the main control circuit 130 and the sub-control unit 241 of the sub-control circuit 240 may be provided with a wireless transceiver module, thereby enabling wireless communication between the main control circuit 130 and the sub-control circuit 240. The main control circuit 130 includes a main control unit 131, which is electrically connected to a power supply unit 132 and a wireless charging transmitter chip 110, respectively. The power supply unit 132 is electrically connected to the wireless charging transmitter chip 110. The power supply unit 132 may include a power supply interface and a power management unit. The power management unit can convert and distribute the power input from the power supply interface to provide a matching power supply to each component in the main control circuit 130. The power supply interface is used to connect to an external power source (such as a battery or AC power supply). The sub-control circuit 240 includes a sub-control unit 241, which is electrically connected to the wireless charging receiving chip 210 and the power management unit 242. The power management unit 242 is electrically connected to at least one vibration element 220 via a vibrator drive unit 243. The wireless charging receiving chip 210 can receive the alternating magnetic field emitted by the wireless charging transmitting chip 110 and convert it into electrical energy, thereby powering the sub-control unit 241 and the vibrator drive unit 143, which in turn drives the vibration element 220 to vibrate.

[0052] In a feasible embodiment, the main control circuit 130 further includes a detection array 120 , and the detection array 120 includes at least three detection sensors 121 ; The detection array 120 is electrically connected to the main control unit 131 and the power supply unit 132 respectively.

[0053] In this embodiment, if the transmitting array 230 is a permanent magnet array, which does not require power, the wireless charging receiving chip 210 does not need to be electrically connected to the transmitting array 230. If the transmitting array 230 is a laser emitter, infrared light emitter, or other power-required component, the wireless charging receiving chip 210 can be electrically connected to the transmitting array 230, or an independent power supply can be provided for the transmitting array 230. The main control circuit 130 also includes a detection array 120, which includes at least three detection sensors 121. The detection array 120 is electrically connected to the main control unit 131 and the power supply unit 132. In addition, the main control circuit 130 may also include a touch screen display for receiving touch input to the touch screen display and providing feedback on the touch input (such as adjusting the display content or executing a corresponding operation). For example, the touch screen display can be provided on the knob cover 100 and electrically connected to the main control unit 131 and the power supply unit 132. The main control circuit 130 may further include a host computer communication interface for communicating with a host computer, which is used to control the device of the knob control circuit. Figure 7 As shown, the main control unit 131 executes the process on the left, while the sub-control unit 241 executes the process on the right. After the device is powered on, step A01 is executed by the main control circuit 130, and the main control unit 131 begins operation and turns on the wireless charging transmitter chip 110. Step A02 is executed by the sub-control circuit 240, and the wireless charging receiver chip 210 then powers the sub-control circuit 240, and the sub-control unit 241 begins operation. Step A03 is executed by the main control circuit 130, and the main control unit 131 and sub-control unit 241 establish a wireless communication connection, simultaneously obtaining touch input information from the touch display and rotation input information from the detection array 120, thereby detecting touch input and rotation input. Step A04 is executed by the sub-control circuit 240, and the sub-control unit 241 establishes a wireless communication connection with the main control unit 131. Step A07 is executed by the main control circuit 130, and the main control unit 131 determines whether there is rotation input. Step A08 is executed by the main control circuit 130. If there is a rotation input, the main control unit 131 can send a corresponding vibration instruction to the sub-control unit 241 through a wireless communication link. Step A09 is executed by the sub-control circuit 240, and the sub-control unit 241 controls the vibration element 110 to vibrate. Step A05 is executed by the main control circuit 130, and the main control unit 131 can also determine whether there is a touch input. Step A06 is also executed by the main control circuit 130. If there is a touch input, the main control unit 131 adjusts the display content of the touch screen according to the touch input. In addition, step A10 is executed by the main control circuit 130, and the main control unit 131 can also transmit the input information corresponding to the rotation input or touch input to the host computer through the host computer communication interface for the host computer to process.

[0054] In addition, the present application also proposes an electronic device, which includes the above knob control circuit.

[0055] Exemplarily, the electronic device may be a device having a knob module, such as a car center console, a head-mounted display device, headphones, speakers, a radio, a washing machine, etc.

[0056] The specific structure of the knob control circuit in the electronic device refers to the above embodiments. Since the electronic device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments.

[0057] In addition, the present application also proposes a control method for an electronic device.

[0058] See also Figure 8 In one embodiment of the present application, a method for controlling an electronic device is applied to the above electronic device, and the steps of the method for controlling the electronic device include: Step S10: The main control circuit turns on the wireless charging transmitter chip and establishes a wireless communication connection with the sub-control circuit; Step S20: The main control circuit obtains the rotation state information of the knob module; In step S30 , the main control circuit generates a vibration control command according to the rotation state information, and sends the vibration control command to the sub-control circuit, so that the sub-control circuit controls the vibration element to vibrate according to the received vibration control command.

[0059] It should be noted that the rotation state information is information describing the rotation state of the rotating part, such as the rotation position, rotation direction, rotation speed, etc.

[0060] In addition, it should be noted that the main body for executing the control method of the electronic device in this embodiment is the main control circuit.

[0061] In this embodiment, the main control circuit activates the wireless charging transmitter chip and establishes a wireless communication connection with the sub-control circuit. The wireless charging receiver chip in the sub-control circuit then converts the alternating magnetic field received from the wireless charging transmitter chip into electrical energy, which powers the sub-control unit and the vibrator element. This energy can also be used to power any transmitting arrays that require it. After the main control circuit establishes a wireless communication connection with the sub-control circuit, this embodiment enables signal transmission via the wireless communication link between the main control unit and the sub-control circuit. The main control circuit can then obtain rotational state information about the knob module and generate a vibration control command based on this information. This vibration control command can then be sent to the sub-control circuit via the wireless communication link between the main control unit and the sub-control circuit. The sub-control circuit then controls the vibrating element to vibrate according to the received vibration control command. The rotational state information describes the rotational state of the rotating element in the knob module, such as leftward, rightward, or to a specified rotational position. In this embodiment, the rotational state of the knob module is identified using various sensors (such as Hall effect sensors, infrared sensors, and laser sensors).

[0062] An emitting array is provided on the side of the rotating member facing the knob cover, and a detection array is provided on the side of the rotating cover facing the emitting array. The detection array includes a plurality of detection sensors for detecting the emission medium emitted by the emitting array. Step S20 includes steps S21 to S23: Step S21: The main control circuit obtains sensor signals from detection sensors in the detection array, and determines alignment status information between the emission array and the detection array based on the sensor signals; Step S22: the main control circuit determines the rotation position and / or rotation direction of the rotating member according to the alignment status information; In step S23 , the main control circuit uses the rotation position and / or rotation direction of the rotating member as the rotation state information of the knob module.

[0063] It should be noted that an emitting array is provided on the side of the rotating member facing the knob cover. The emitting array may include at least one emitting end, which can emit an emitting medium such as magnetism, light, or sound waves for detection by the detection sensors in the detection array. Therefore, when the intensity of the emitting medium (such as magnetic field intensity, light intensity, sound wave intensity, etc.) detected by the detection sensor exceeds a certain threshold, it can be determined that the detection sensor is aligned with the emitting end.

[0064] In this embodiment, the main control circuit obtains the sensor signal of the detection sensor in the detection array, and determines the alignment status information of the emission array and the detection array according to the sensor signal. Figure 9 As shown, Figure 9The red dotted circle in the middle represents the projected position of the transmitter onto the plane of the detection array. Therefore, when the projected position of the transmitter coincides with the detection sensor, the detection sensor can detect the transmitting medium emitted by the transmitter, thereby confirming alignment with the detection sensor. Taking the case of a single transmitter in the transmitter array as an example, as the rotating member of this embodiment rotates relative to the knob cover about the axis, the transmitter also rotates. When the detection sensor detects alignment with the transmitter, it indicates that the projected position of the transmitter coincides with the set position of the detection sensor. Therefore, the set position of the detection sensor aligned with the transmitter can be used as the rotational position of the rotating member. Furthermore, the rotational direction can be determined based on this change in rotational position, i.e., the direction from the current rotational position to the next rotational position. For example, in the case of a transmitter array comprising a first transmitter, a second transmitter, and a third transmitter, since the angle between the first and second transmitters at the second position is a positive integer multiple of the angle at the first position, when the first and second transmitters are aligned with the detection sensor, the projected position of the third transmitter is midway between any pair of adjacent detection sensors. Therefore, during the rotation of the rotating member, the dual emitters (composed of the first and second emitters) and the single emitter (composed of the third emitter) in the emitter array alternately align with the detection sensors in the detection array. Therefore, based on the alignment status information, the main control circuit can, after detecting that the current alignment status is that the first and second emitters are aligned with the detection sensor, determine the projected position of the third emitter on the detection array based on the positions of the two aligned detection sensors and the aforementioned third position angle (i.e., the angle between the third emitter and the first or second emitter). In this embodiment, the projected position of the third emitter can be used as the rotational position. Based on the alignment status information, after detecting that the third emitter is aligned with the detection sensor, the main control circuit uses the position of the detection sensor aligned with the third emitter as the new rotational position. The main control circuit uses the change in rotational position as the rotational status information of the knob module. In another example, based on the alignment status information, after detecting that the current alignment status is that the third emitter is aligned with the detection sensor, the main control circuit uses the position of the detection sensor aligned with the third emitter as the rotational position. Based on the alignment status information, the main control circuit determines the projected position of the third transmitter on the detection array the next time the detection sensor detects alignment between the first and second transmitters. The projected position is used as the new rotational position based on the placement of the two detection sensors that detected the alignment and the aforementioned third position angle. The main control circuit uses the change in rotational position as the rotational status information of the knob module.

[0065] The embodiment of the present application controls the vibration element on the rotating part to directly vibrate, thereby providing a clearer vibration feedback to the user when the rotating part is turned. Furthermore, by adjusting the driving parameters of the vibration element, such as the duty cycle and period, richer vibration feedback can be provided. Furthermore, the combination of the wireless charging transmitter chip and the wireless charging receiver chip provides contactless energy for the vibration element, and the wireless communication connection between the main control circuit and the sub-control circuit enables wireless communication. Compared with the use of contact circuit connection methods, this embodiment effectively avoids the hidden dangers that may be caused by contact wear.

[0066] In one feasible embodiment, an emitting array is provided on a side of the rotating member facing the knob cover, the emitting array including a first emitting end, a second emitting end, and a third emitting end; a detection array is provided on a side of the rotating cover facing the emitting array, the detection array including at least three detection sensors evenly distributed on the circumference; step S22 includes steps A10 to A30: Step A10: After synchronously detecting alignment of the first transmitting end and the second transmitting end detection sensors based on the alignment status information, the main control circuit determines the rotational position of the rotating member based on the placement positions of the two detection sensors that detected the alignment; Step A20: After detecting the alignment of the third transmitting end detection sensor, the main control circuit determines the rotation position of the rotating member according to the setting position of the detection sensor that detects the alignment based on the alignment status information; In step A30 , the main control circuit uses the rotation position of the rotating member as the rotation state information of the knob module.

[0067] In the embodiments of the present application, a rotation detection method based on a single transmitter and dual transmitters is employed as a transmitting array. For example, the detection array comprises six detection sensors evenly distributed around a circumference. The first position angle between adjacent detection sensors is 60°. The second position angle between the first and second transmitters is a positive integer multiple of the first position angle. When the first and second transmitters are aligned with the detection sensors, the projection of the third transmitter is positioned midway between any pair of adjacent detection sensors. That is, the third position angle between the third transmitter and either the first or second transmitter is N + 1 / 2 times the first position angle, where N is an integer not less than zero. For example, the second position angle between the first and second transmitters is equal to the first position angle. The angles between the first, second, and third transmitters in the transmitting array can be any combination of 60°, 150°, and 150°; 60°, 90°, and 210°; 60°, 30°, and 270°, and so on. Similarly, the second position angle between the first and second transmitting ends in the transmitting array can be changed, for example, to twice the first position angle. The position angles between the first, second, and third transmitting ends in the transmitting array can be a combination of 120°, 90°, and 150°, or a combination of 120°, 30°, and 210°. For example, in a detection array including eight detection sensors evenly distributed around a circumference, the position angles between the first, second, and third transmitting ends in the transmitting array can be 90°, a combination of 157.5° and 112.5°, or a combination of 135°, 112.5°, and 112.5°.

[0068] Therefore, in this embodiment, as the rotating member rotates about the rotation axis relative to the knob cover, since the second position angle between the first and second emitting ends is a positive integer multiple of the first position angle, when the first emitting end is aligned with a detection sensor, the second emitting end is necessarily aligned with another detection sensor. Similarly, when the second emitting end is aligned with a detection sensor, the first emitting end is necessarily aligned with another detection sensor. In this case, the projection position of the third emitting end falls midway between any pair of adjacent detection sensors. Furthermore, when the third emitting end is aligned with a detection sensor, the projection positions of the first and second emitting ends fall midway between the corresponding adjacent detection sensors. Therefore, the main control circuit acquires sensor signals from the detection sensors in the detection array and determines alignment status information between the emitting array and the detection array based on the sensor signals. The alignment status information includes the number and location of detection sensors aligned with the emitting array. For example, if the detection sensors are Hall sensors, the sensor signals are the detected magnetic field strength values. Detection sensors whose detected magnetic field strength values ​​are greater than a predetermined magnetic field threshold are aligned with the emitting array. For example, if the detection sensor is an infrared sensor, the sensor signal is the detected light intensity value. The detection sensor whose detected light intensity value is greater than a predetermined light threshold is the detection sensor aligned with the emitting array. Based on the alignment status information, the main control circuit determines that the first and second emitting ends are aligned with the two detection sensors when two detection sensors simultaneously detect that the emitting ends are aligned. As an example, this embodiment can use the relative position between the setting positions of the two detection sensors that detected alignment and a predetermined directional position (e.g., directly above or below the knob module) as the rotational position of the rotating member. Alternatively, based on the setting positions of the two detection sensors that detected alignment and the angle between a third position (i.e., the angle between the third emitting end and the first or second emitting end), the projection position of the third emitting end on the detection array is determined and used as the rotational position of the rotating member. If only one detection sensor detects that the emitting ends are aligned, this indicates that the third emitting end is aligned with that detection sensor. The rotational position of the rotating member can then be determined based on the relative position between the setting position of the detection sensor that detected alignment and a predetermined directional position (e.g., directly above or below the knob module). Alternatively, the rotational position of the rotating member is determined based on the location of the detection sensor that detects alignment (i.e., the projected location of the third transmitting end on the detection array). In this embodiment, in addition to detecting the position where the third transmitting end is aligned with each detection sensor, it can also detect the position where the third transmitting end is located midway between adjacent detection sensors, as the first and second transmitting ends will be synchronously aligned with the two detection sensors. This means that with six detection sensors, twelve detection positions can be detected, and with eight detection sensors, sixteen detection positions can be detected.The configuration method of the transmitting array in this embodiment can increase the number of detection points based on the limited number of detection sensors, thereby achieving more precise rotation position detection. The main control circuit can then use the rotation position of the rotating member as the rotation state information of the knob module.

[0069] In a feasible embodiment, step S22 further includes steps A40 to A60: In step A40, the main control circuit, based on the alignment status information, after detecting that the current alignment status is that the third transmitter is aligned with the detection sensor, sets the setting position of the detection sensor that detects the current alignment of the third transmitter to the first detection position, and after the next detection of the alignment of the first and second transmitters with the detection sensor, sets the projection position of the third transmitter to the second detection position. Alternatively, in step A50, after detecting that the current alignment state is that the first transmitting end and the second transmitting end are aligned with the detection sensor, the projection position of the third transmitting end is set as the first detection position, and the setting position of the detection sensor at which the third transmitting end is next detected to be aligned is set as the second detection position; In step A60 , the main control circuit uses the direction from the first detection position to the second detection position as the rotation direction of the rotating member, and uses the rotation direction of the rotating member as the rotation state information of the knob module.

[0070] like Figure 10 As shown, Figure 10The red dotted circles in the middle represent the projected positions of the first, second, and third transmitters onto the plane of the detection array. Therefore, when these projected positions coincide with the detection sensors, the detection sensors can detect the emission medium emitted by the transmitters (the first, second, and third transmitters), thereby determining that the transmitters are aligned with the detection sensors. Based on the alignment status information, the main control circuit, upon detecting that the current alignment status is that the third transmitter is aligned with the detection sensor, sets the location of the detection sensor where the third transmitter was currently aligned as the first detection location. Then, during the next detection process, upon detecting that the first and second transmitters are aligned with the detection sensor, the projected position of the third transmitter is set as the second detection location. Alternatively, upon detecting that the current alignment status is that the first and second transmitters are aligned with the detection sensor, the projected position of the third transmitter at that time is set as the first detection location, and the location of the detection sensor where the third transmitter is currently aligned in the next detection process is set as the second detection location. The projected position of the third transmitter is the position of the third transmitter projected onto the detection array, which can be determined by the angle between the location of the detection sensor where the first and second transmitters are currently aligned and the third location. Then, the main control circuit uses the direction from the first detection position to the second detection position as the rotation direction of the rotating part, and uses the rotation direction of the rotating part as the rotation state information of the knob module. That is, when the direction from the first detection position to the second detection position is clockwise, the rotation direction of the rotating part is clockwise; when the direction from the first detection position to the second detection position is counterclockwise, the rotation direction of the rotating part is counterclockwise. The main control circuit can use the direction from the first detection position to the second detection position as the rotation direction of the rotating part, and use the rotation direction of the rotating part as the rotation state information of the knob module. Therefore, this embodiment can quickly identify the rotation direction of the rotating part by changing the setting position of the detection sensor aligned with the first transmitting end and the second transmitting end, or the detection sensor aligned with the third transmitting end.

[0071] The above are merely exemplary embodiments of the present application and are not intended to limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A knob module, characterized in that: The knob module includes a knob cover, which is limitedly connected to the rotating member and fixed to the knob substrate via a rotating shaft passing through the rotating member; The knob cover is provided with a wireless charging transmitter chip; The rotating member is provided with a wireless charging receiving chip corresponding to the wireless charging transmitting chip, and at least one vibration element electrically connected to the wireless charging receiving chip.

2. The knob module according to claim 1, wherein: There is a first distance between the knob cover and the rotating member in the radial direction and / or the axial direction, so that the rotating member maintains a distance from the knob cover during vibration.

3. The knob module according to claim 1, wherein: The wireless charging transmitting chip includes a wireless charging transmitting coil, and the wireless charging receiving chip includes a wireless charging receiving coil; The wireless charging transmitting coil and the wireless charging receiving coil are arranged opposite to each other, so that when the knob cover rotates, the wireless charging transmitting coil and the wireless charging receiving coil remain coupled.

4. The knob module according to claim 3, wherein: The knob cover includes a base and a cylindrical protruding piece on the base; The wireless charging transmitting coil is arranged on the base, and the wireless charging receiving coil is arranged on the top or bottom of the rotating member; And / or, the wireless charging transmitting coil is arranged on the side elevation of the cylindrical protruding member, and the wireless charging receiving coil is arranged on the inner side elevation of the rotating member.

5. The knob module according to claim 1, wherein: An emission array is provided on the side of the rotating member facing the knob cover, and a detection array is provided on the side of the rotating cover facing the emission array. The detection array includes a plurality of detection sensors for detecting emission media emitted by the emission array.

6. The knob module according to claim 5, wherein: The transmitting array includes a first transmitting end, a second transmitting end and a third transmitting end; The detection array includes at least three detection sensors evenly distributed on a circumference, with adjacent detection sensors having a first position angle between them; A second position angle between the first transmitting end and the second transmitting end is a positive integer multiple of the first position angle; When the first emitting end and the second emitting end are aligned with the detection sensors, the projection position of the third emitting end is located in the middle position between any pair of adjacent detection sensors.

7. The knob module according to claim 6, wherein: A third position angle between the third transmitting end and the first transmitting end or the second transmitting end is N+1 / 2 times the first position angle, where N is an integer not less than zero.

8. The knob module according to claim 6, wherein: The first transmitting end is a first permanent magnet, the second transmitting end is a second permanent magnet, and the third transmitting end is a third permanent magnet, and the first permanent magnet, the second permanent magnet, and the third permanent magnet have the same magnetic field direction in the vertical direction; The detection sensor is a Hall sensor.

9. A knob control circuit, applied to the knob module according to any one of claims 1 to 8, characterized in that: The knob control circuit includes a main control circuit provided on the knob cover and a sub-control circuit provided on the knob member, wherein the main control circuit and the sub-control circuit are wirelessly connected; The main control circuit includes a main control unit, the main control unit is electrically connected to the power supply unit and the wireless charging transmitter chip respectively, and the power supply unit is electrically connected to the wireless charging transmitter chip; The sub-control circuit includes a sub-control unit, which is electrically connected to the wireless charging receiving chip and the power management unit respectively. The power management unit is electrically connected to at least one vibration element through a vibrator driving unit.

10. The knob control circuit according to claim 9, wherein: The main control circuit further includes a detection array, wherein the detection array includes at least three detection sensors evenly distributed on a circumference; The detection array is electrically connected to the main control unit and the power supply unit respectively.

11. An electronic device, characterized in that: The electronic device comprises the knob control circuit according to any one of claims 8 to 9.

12. A method for controlling an electronic device, characterized in that: Applied to the electronic device according to claim 11, the steps of the control method of the electronic device include: The main control circuit turns on the wireless charging transmitter chip and establishes a wireless communication connection with the sub-control circuit; The main control circuit obtains the rotation state information of the knob module; The main control circuit generates a vibration control command according to the rotation state information, and sends the vibration control command to the sub-control circuit, so that the sub-control circuit controls the vibration element to vibrate according to the received vibration control command.

13. The method for controlling an electronic device according to claim 12, wherein: An emission array is provided on a side of the rotating member facing the knob cover, and a detection array is provided on a side of the rotating cover facing the emission array. The detection array includes a plurality of detection sensors for detecting emission media emitted by the emission array. The step of the main control circuit acquiring the rotation state information of the knob module includes: The main control circuit acquires sensor signals of detection sensors in the detection array, and determines alignment status information of the emission array and the detection array according to the sensor signals; The main control circuit determines the rotation position and / or rotation direction of the rotating member according to the alignment status information; The main control circuit uses the rotation position and / or rotation direction of the rotating member as the rotation state information of the knob module.

14. The method for controlling an electronic device according to claim 13, wherein: The transmitting array includes a first transmitting end, a second transmitting end and a third transmitting end; the detecting array includes at least three detecting sensors evenly distributed on the circumference; The step of the main control circuit determining the rotation position of the rotating member according to the alignment state information includes: The main control circuit determines the rotation position of the rotating member according to the arrangement positions of the two detection sensors that detect the alignment after synchronously detecting the alignment of the first transmitting end and the second transmitting end based on the alignment status information; The main control circuit determines the rotation position of the rotating member according to the alignment state information and the setting position of the detection sensor that detects the alignment after detecting the alignment of the third transmitting end detection sensor; The main control circuit uses the rotation position of the rotating member as the rotation state information of the knob module.

15. The method for controlling an electronic device according to claim 14, wherein: The step of the main control circuit determining the rotation direction of the rotating member according to the alignment state information includes: The main control circuit, based on the alignment status information, after detecting that the current alignment status is that the third transmitting end is aligned with the detection sensor, sets the setting position of the detection sensor that detects the current alignment of the third transmitting end as the first detection position, and after detecting that the first transmitting end and the second transmitting end are aligned with the detection sensor next time, sets the projection position of the third transmitting end as the second detection position; Alternatively, after detecting that the current alignment state is that the first transmitting end and the second transmitting end are aligned with the detection sensor, the projection position of the third transmitting end is set as the first detection position, and the setting position of the detection sensor at which the alignment of the third transmitting end is detected next time is set as the second detection position; The main control circuit uses the direction from the first detection position to the second detection position as the rotation direction of the rotating member, and uses the rotation direction of the rotating member as the rotation state information of the knob module.

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