Intelligent touch pen

Abstract

The utility model relates to the technical field of electronic equipment, and provides an intelligent touch pen which comprises a first body part and a second body part, and one end of the first body part is provided with a touch part; the second body part is detachably assembled at the other end of the first body part, the second body part comprises a first inertial measurement unit, a UWB antenna and a UWB chip, the first inertial measurement unit and the UWB antenna are electrically connected with the UWB chip, the UWB antenna is used for being in wireless communication connection with a receiving device, and the UWB chip is electrically connected with the first inertial measurement unit. And the receiving equipment can position the direction of the intelligent touch pen based on the signal transmitted by the UWB antenna. According to the intelligent touch pen, accurate control over a cursor can be achieved, the practicability of the flying mouse function is improved, the writing weight can be reduced through detachable assembly, the practicability of the touch control and writing functions is improved, the second body part can be selected and matched, and the requirements of different users are met.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and in particular to an intelligent stylus. Background Technology

[0002] Current styluses include active and passive pens. Passive pens mimic the touch effect of fingers, using a pen tip made of conductive material to achieve capacitive touch, requiring no active pressure and offering simple functionality. Active pens, on the other hand, can actively transmit and receive signals, enabling wireless communication with electronic devices, intelligently recognizing and analyzing user writing behavior, and incorporating integrated circuits for richer functionality.

[0003] With the advancement of educational technology, large-screen educational displays are increasingly appearing in schools. Teachers typically control the screen remotely using a stylus, requiring them to hold the stylus for extended periods. Precise laser pointing solutions cannot be used in teaching scenarios due to safety concerns. Therefore, a related technology involves adding an IMU (Inertial Measurement Unit) to the stylus to enable its air mouse function. However, IMU positioning algorithms have limitations, failing to accurately control the cursor on the screen and exhibiting severe shaking and drifting issues, resulting in poor practicality. Utility Model Content

[0004] This invention provides an intelligent stylus to solve the problems of low positioning accuracy and poor practicality of the air mouse function in existing styluses.

[0005] This utility model provides an intelligent stylus, comprising:

[0006] A first body portion, one end of which has a touch portion;

[0007] The second body is detachably assembled to the other end of the first body. The second body includes a first inertial measurement unit, a UWB antenna, and a UWB chip. The first inertial measurement unit and the UWB antenna are electrically connected to the UWB chip. The UWB antenna is used for wireless communication with a receiving device, enabling the receiving device to locate the direction of the smart stylus based on the signal emitted by the UWB antenna.

[0008] According to the present invention, the first body part further includes a wireless communication processing module and a first communication interface. The touch part and the first communication interface are respectively electrically connected to the wireless communication processing module. The wireless communication processing module is used to wirelessly connect with the receiving device.

[0009] The second body also includes a second communication interface, the UWB chip is electrically connected to the second communication interface, and the second communication interface is contact-connected to the first communication interface.

[0010] According to the present invention, the first body part further includes a second inertial measurement unit, which is electrically connected to the wireless communication processing module.

[0011] According to the present invention, a smart stylus is provided, wherein the first communication interface and the second communication interface have corresponding detection terminals. The detection terminals of the first communication interface are electrically connected to the wireless communication processing module, and the detection terminals of the second communication interface are electrically connected to the UWB chip. The wireless communication processing module can interrupt data communication with the second inertial measurement unit according to the signal received by the detection terminals.

[0012] According to the present invention, a smart stylus is provided with a first magnetic element at one end of the first body part away from the touch part, and a second magnetic element at one end of the second body part. The first magnetic element and the second magnetic element attract each other to assemble and connect the first body part and the second body part.

[0013] According to the present invention, a smart stylus is provided in which the first body part is provided with a first communication interface, the second body part is provided with a second communication interface, the end of the first body part away from the touch part is provided with a receiving groove, the first communication interface is disposed in the receiving groove, and the second communication interface is inserted into the receiving groove.

[0014] According to the present invention, a smart stylus is provided in which the receiving groove and the second communication interface are in a circumferential upper limit fit in the first body part.

[0015] According to the present invention, a smart stylus is provided, wherein the first communication interface is provided with multiple contacts, the second communication interface is provided with multiple pins, the multiple contacts and the multiple pins are arranged in a one-to-one correspondence, one end of the pin is electrically connected to the UWB chip, and the other end passes through the first magnetic component.

[0016] According to the present invention, the first body part further includes a battery, a charging interface and a wireless charging module, wherein the charging interface, the wireless charging module and the wireless communication processing module are electrically connected to the battery.

[0017] According to the present invention, a smart stylus is provided, wherein the touch unit includes a pen tip and a pressure sensor, the pressure sensor is electrically connected to the wireless communication processing module, and the pen tip is in contact with the sensing end of the pressure sensor.

[0018] This utility model provides an intelligent stylus with a detachable first body and a second body. The first body has a touch unit, and the second body has a first inertial measurement unit, a UWB antenna, and a UWB chip. The second body is a separate UWB module that can be detachably assembled with the first body. This UWB module enables precise mouse positioning, similar to laser-guided pointing, improving the positioning accuracy of the stylus's air mouse function. This allows for precise cursor control, reducing hand fatigue caused by prolonged air mouse use and enhancing the practicality of the air mouse function. Users can detach the second body when the UWB pointing and positioning function is not needed to reduce the stylus's weight, further improving the practicality of touch and writing functions. Users can also choose to add the second body as an option to meet the needs of different users. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the intelligent stylus provided by this utility model.

[0021] Figure 2 This is a hardware structure block diagram of the intelligent stylus provided by this utility model.

[0022] Figure 3 This is a cross-sectional view of the intelligent stylus provided by this utility model.

[0023] Figure 4 yes Figure 3 A magnified view of part A circled in the diagram.

[0024] Figure 5 This is a schematic diagram of the end structure of the second body part of the intelligent stylus provided by this utility model.

[0025] Figure label:

[0026] 1. First body part; 10. First housing; 11. Touch part; 111. Pen tip; 112. Pressure sensor; 12. Wireless communication processing module; 13. First communication interface; 131. Contact point; 14. Second inertial measurement unit; 15. First magnetic component; 16. Battery; 17. Button assembly; 18. First circuit board; 19. Charging interface; 2. Second body part; 20. Second housing; 21. First inertial measurement unit; 22. UWB antenna; 23. UWB chip; 24. Second communication interface; 241. Pin; 25. Second magnetic component; 26. Second circuit board. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of the embodiments of this utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "first" and "second" are numbered for the purpose of clearly identifying product components and do not represent any substantial difference. The terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances. Furthermore, "multiple" means two or more.

[0029] The following is combined with Figures 1-5 This invention describes the intelligent stylus pen.

[0030] like Figure 1 and Figure 2 As shown, the smart stylus provided in this embodiment of the present invention includes a first body portion 1 and a second body portion 2. One end of the first body portion 1 has a touch portion 11. The second body portion 2 is detachably mounted to the other end of the first body portion 1. The second body portion 2 includes a first inertial measurement unit 21, a UWB antenna 22, and a UWB chip 23. The first inertial measurement unit 21 and the UWB antenna 22 are electrically connected to the UWB chip 23. The UWB antenna 22 is used for wireless communication with a receiving device, enabling the receiving device to locate the direction of the smart stylus based on the signal emitted by the UWB antenna 22.

[0031] Optionally, see Figure 1The first body part 1 is the pen body of the smart stylus, and the second body part 2 is the pen cap of the smart stylus. The two are assembled to form an external structure similar to an ordinary writing pen.

[0032] The UWB antenna 22 is used to convert the Ultra Wide Band (UWB) signal generated by the UWB chip into electromagnetic waves for radiation, and to convert the received electromagnetic waves into electrical signals for processing by the UWB chip. The UWB chip 23 is used to generate, receive, and process UWB signals, and calculate the position of the stylus relative to the receiving device. Correspondingly, the receiving device is equipped with a UWB receiving module, which receives the UWB signals emitted by the stylus, decodes and processes the UWB signals to determine the distance and angle of the stylus relative to the receiving device, and converts them into the position of the cursor on the receiving device.

[0033] The first inertial measurement unit 21 measures the motion state of the second body 2 in three-dimensional space, including its attitude, velocity, and acceleration. It integrates various sensors, including a gyroscope and an accelerometer. This motion state information, combined with the position information measured by the UWB chip 23, allows for the precise acquisition of continuous real-time information on the motion state of the second body 2, which is then converted into a cursor trajectory on the receiving device. This enables precise control of the cursor, allowing for shaking and drifting, thus reducing hand fatigue from prolonged use of the air mouse function and improving its practicality.

[0034] The first body part 1 has a touch unit 11 at one end, and the second body part 2 is detachably assembled to the first body part 1. This allows the second body part 2 to be detached when the user needs to use the touch or writing functions of the touch unit 11 for extended periods, reducing the weight of the smart stylus and thus minimizing hand fatigue during prolonged writing. The second body part 2 can be an optional component of the smart stylus; users can purchase only the first body part 1, reducing costs and meeting the needs of different users.

[0035] The intelligent stylus provided in this embodiment of the invention comprises a detachable first body part 1 and a second body part 2. The first body part 1 has a touch unit 11, and the second body part 2 has a first inertial measurement unit 21, a UWB antenna 22, and a UWB chip 23. That is, the second body part 2 is a separate UWB module detachably assembled with the first body part 1. This UWB module enables precise mouse positioning with laser-like pointing performance, improving the positioning accuracy of the stylus's air mouse function, achieving precise cursor control, reducing hand fatigue caused by prolonged use of the air mouse function, and enhancing the practicality of the air mouse function. Users can detach the second body part 2 when the UWB pointing and positioning function is not needed to reduce the weight of the stylus, further improving the practicality of touch and writing functions. Users can also choose to equip the second body part 2 as an option to meet the purchasing needs of different users.

[0036] In this embodiment of the invention, the first body part 1 can be used as a passive pen that can be used independently, and correspondingly, the touch unit 11 is a passive touch unit. Alternatively, the first body part 1 can be used as an active pen that can be used independently, and correspondingly, the touch unit 11 is an active pen-type touch unit. When the first body part 1 is an active pen, the first body part 1 also includes a wireless communication processing module 12, which is used to send the touch signals, position information, and pressure sensing data generated by the touch unit 11 to a receiving device. Users can select different forms of the first body part 1 and the second body part 2 for assembly as needed.

[0037] In some embodiments of this invention, the first body part 1 further includes a wireless communication processing module 12 and a first communication interface 13. The touch unit 11 and the first communication interface 13 are electrically connected to the wireless communication processing module 12, which is used for wireless communication with a receiving device. The second body part 2 further includes a second communication interface 24, and the UWB chip 23 is electrically connected to the second communication interface 24. The second communication interface 24 is in contact with the first communication interface 13. In this embodiment, the first body part 1 can be used as an active pen.

[0038] The wireless communication processing module 12 can be a Bluetooth chip, utilizing its data processing and communication functions, such as a BLE (Bluetooth Low Energy) chip, to reduce the power consumption of the stylus. Alternatively, the wireless communication processing module 12 includes a Bluetooth chip and a processor, with the processor processing data and the Bluetooth chip sending and receiving signals.

[0039] The first body unit 1 also includes a coding module and a radio frequency antenna. The wireless communication processing module 12 is connected to the radio frequency antenna via a radio frequency amplifier. The coding module generates and transmits coding signals, including information such as the position, movement trajectory, and pressure of the pen tip. The coding module transmits this signal to the radio frequency antenna via the wireless communication processing module 12, and the radio frequency antenna sends it to the receiving device, enabling the receiving device to recognize and respond to the operation of the stylus.

[0040] Specifically, such as Figure 3 As shown, the first body part 1 includes a first housing 10, a touch unit 11 and a first communication interface 13 respectively disposed at both ends of the first housing 10, and a wireless communication processing module 12 disposed inside the first housing 10. The second body part 2 includes a second housing 20, a second communication interface 24 disposed at one end of the second housing 20, and a first inertial measurement unit 21, a UWB antenna and a UWB chip disposed inside the second housing 20. The first housing 10 and the second housing 20 are detachably assembled.

[0041] When the first housing 10 and the second housing 20 are assembled and connected, the first communication interface 13 and the second communication interface 24 are in contact; when the first housing 10 and the second housing 20 are separated, the first communication interface 13 and the second communication interface 24 are separated. When the first communication interface 13 and the second communication interface 24 are in contact, a communication connection is established between the UWB chip 23 and the wireless communication processing module 12. The UWB chip 23 can be upgraded via OTA through the wireless communication processing module 12.

[0042] The UWB chip 23 can integrate IMU algorithm and UWB algorithm. The first inertial measurement unit 21 transmits the measured motion state information to the UWB chip 23. The UWB chip 23 fuses the position information of the stylus with the motion state information to obtain the precise pointing information of the stylus. The pointing information is then transmitted to the receiving device through the UWB antenna 22.

[0043] Alternatively, the IMU algorithm and UWB algorithm can be integrated into the wireless communication processing module 12. The wireless communication processing module 12 fuses the stylus position information and motion state information to obtain the stylus's precise pointing information, which is then transmitted to the receiving device via the UWB antenna 22. This reduces the power consumption of the second body 2. When the wireless communication processing module 12 is a BLE chip, the stylus's power consumption can be significantly reduced.

[0044] In some embodiments of this utility model, the first body part 1 further includes a second inertial measurement unit 14, which is electrically connected to the wireless communication processing module 12.

[0045] The second inertial measurement unit 14 measures the motion state of the first body part 1 in three-dimensional space, including its attitude, velocity, and acceleration. It integrates various sensors, including a gyroscope and an accelerometer. Thus, the first body part 1 integrates touch control and air mouse functionality. Even without the second body part 2, the user can still operate the air mouse through the first body part 1, meeting the needs of users who do not require precise positioning.

[0046] In some embodiments of this invention, the first communication interface 13 and the second communication interface 24 have corresponding detection terminals. The detection terminals of the first communication interface 13 are electrically connected to the wireless communication processing module 12, and the detection terminals of the second communication interface 24 are electrically connected to the UWB chip 23. The wireless communication processing module 12 can interrupt data communication with the second inertial measurement unit 14 based on the signal received from the detection terminals.

[0047] When the second body part 2 is assembled and connected to the first body part 1, and the first communication interface 13 and the second communication interface 24 are correctly electrically connected, the UWB chip 23 receives a specific detection signal from the detection terminal of the first communication interface 13, and then interrupts the data communication between the second inertial measurement unit 14 and the wireless communication processing module 12 based on the detection signal. At this time, the stylus only realizes the air mouse function through the UWB module in the second body part 2.

[0048] When the second body part 2 is separated from the first body part 1, if the UWB chip 23 does not receive the aforementioned detection signal, or receives another detection signal, the second inertial measurement unit 14 is activated. At this time, the stylus implements the air mouse function through the second inertial measurement unit 14 within the first body part 1.

[0049] like Figure 4 As shown, in some embodiments of this utility model, a first magnetic element 15 is provided at the end of the first body part 1 away from the touch part 11. A second magnetic element 25 is provided at one end of the second body part 2. The first magnetic element 15 and the second magnetic element 25 attract each other to assemble and connect the first body part 1 and the second body part 2.

[0050] It is understood that the first communication interface 13 and the second communication interface 24 are magnetic interfaces. The first magnetic element 15 is located inside the first communication interface 13, and the second magnetic element 25 is located inside the second communication interface 24. The magnetic attraction between the first magnetic element 15 and the second magnetic element 25 keeps the first communication interface 13 and the second communication interface 24 in a connected state.

[0051] Furthermore, the first body part 1 is provided with a first communication interface 13, and the second body part 2 is provided with a second communication interface 24. The end of the first body part 1 away from the touch part 11 is provided with a receiving groove, the first communication interface 13 is disposed in the receiving groove, and the second communication interface 24 is inserted into the receiving groove.

[0052] Specifically, see Figure 4 The first communication interface 13 is located inside the first housing 10. The end face of the first communication interface 13 and the first housing 10 form a receiving groove. The second communication interface 24 is inserted into the receiving groove, which can improve the stability of the connection between the first communication interface 13 and the second communication interface 24.

[0053] Furthermore, the second communication interface 24 protrudes beyond the second housing 20. The shape of the protruding portion of the second communication interface 24 is adapted to the receiving groove. When the second communication interface 24 is inserted into the receiving groove, the outer surfaces of the first housing 10 and the second housing 20 are flush. (See Figure 1) Figure 1 and Figure 3 This improves the structural consistency of the first body part 1 and the second body part 2 after assembly.

[0054] Optionally, the receiving slot and the second communication interface 24 are engaged in a circumferential upper limit fit on the first body portion 1. It is understood that the receiving slot can restrict the second communication interface 24 from rotating relative to the first communication interface 13 about the axial direction of the first body portion 1. This further improves the stability of the connection between the first communication interface 13 and the second communication interface 24.

[0055] In one specific embodiment, the receiving slot is a "D"-shaped slot, which can be used to prevent the second communication interface 24 from being mistakenly inserted into the receiving slot, and can also restrict the rotation of the second communication interface 24 relative to the first communication interface 13. The receiving slot can also be other shapes, such as hexagonal slots or rectangular slots, which can also restrict the relative rotation of the two communication interfaces.

[0056] In this embodiment of the invention, the first communication interface 13 is provided with multiple contacts 131, and the second communication interface 24 is provided with multiple pins 241. The multiple contacts 131 and the multiple pins 241 are arranged in a one-to-one correspondence. One end of the pin 241 is electrically connected to the UWB chip 23, and the other end passes through the first magnetic component 15. (See attached diagram.) Figure 4 .

[0057] Optionally, the first communication interface 13 and the second communication interface 24 are serial communication interfaces. Specifically, the first communication interface 13 has five connection terminals, including a power terminal, a ground terminal, a transmit terminal, a receive terminal, and a detection terminal. Correspondingly, as... Figure 5 As shown, the second communication interface 24 has five connection terminals that correspond one-to-one with the first communication interface 13.

[0058] Specifically, the first body part 1 also includes a first circuit board 18, on which electronic components such as the wireless communication processing module 12, the first communication interface 13, and the second inertial measurement unit 14 are disposed. Multiple contacts 131 are electrically connected to the first circuit board 18 via a flexible circuit board. The second body part 2 also includes a second circuit board 26, on which the first inertial measurement unit 21 and the UWB chip 23 are disposed. The UWB antenna 22 is connected to the second circuit board 26 via a flexible circuit board. One end of the pin 241 is electrically connected to the UWB chip 23 via the second circuit board 26, and the other end passes through the first magnetic component 15.

[0059] It should be noted that the connection terminal of the second communication interface 24 can also be set as a contact, and the connection terminal of the first communication interface 13 can be set as a pin, which is inserted into the second magnetic component 25.

[0060] In this embodiment of the utility model, such as Figure 2 As shown, the first body part 1 also includes a battery 16, a charging interface 19, and a wireless charging module. The charging interface 19, the wireless charging module, and the wireless communication processing module 12 are electrically connected to the battery 16.

[0061] Specifically, the first body unit 1 also includes a power module and a charging management chip. The charging interface 19 and the wireless charging module are electrically connected to the battery 16 via the charging management chip. The battery 16 is electrically connected to the wireless communication processing module 12 via the power module to ensure stable current and voltage waveforms output from the battery 16 to the wireless communication processing module 12. The charging interface 19 is not limited to Type-C. An overvoltage protection chip is also connected between the charging interface 19 and the charging / discharging management chip. The overvoltage protection chip is electrically connected to the wireless communication processing module 12 via the power module to provide overvoltage protection.

[0062] Optionally, the charge / discharge management chip is connected to a fuel gauge, which is electrically connected to the wireless communication processing module 12 for detecting the battery level. The wireless communication processing module 12 is also connected to an indicator light, which can control the indicator light to emit different colors of light based on the battery level detected by the fuel gauge, so as to convey the stylus's battery level information to the user.

[0063] In this embodiment of the invention, the first body part 1 further includes a button assembly 17, which is electrically connected to the wireless communication processing module 12 and is used to send control commands to the wireless communication processing module 12. The button assembly 17 may include a power button, a page-turning button, an audio button, an air mouse button, or other buttons, etc., to trigger the corresponding function of the stylus.

[0064] Optionally, the first body unit 1 also includes a microphone, which is connected to the wireless communication processing module 12 via an operational amplifier. This supports user audio recording, which is then uploaded to a receiving device for processing via the wireless communication processing module 12 and a radio frequency antenna.

[0065] like Figure 3 As shown in the embodiment of this utility model, the touch unit 11 includes a pen tip 111 and a pressure sensor 112. The pressure sensor 112 is electrically connected to the wireless communication processing module 12, and the pen tip 111 is in contact with the sensing end of the pressure sensor 112.

[0066] Specifically, the pen tip 111 is movably disposed on the first housing 10 along the axial direction of the first body 1, and one end of it is in contact with the sensing end of the pressure sensor 112. The pressure sensor 112 is connected to the pressure-sensitive interface on the first circuit board 18. The pressure sensor 112 is used to detect the pressure on the pen tip 111 and send the pressure data to the wireless communication processing module 12, and then to the receiving device via the radio frequency antenna.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A smart stylus, characterized in that, include: A first body portion, one end of which has a touch portion; The second body is detachably assembled to the other end of the first body. The second body includes a first inertial measurement unit, a UWB antenna, and a UWB chip. The first inertial measurement unit and the UWB antenna are electrically connected to the UWB chip. The UWB antenna is used for wireless communication with a receiving device, enabling the receiving device to locate the direction of the smart stylus based on the signal emitted by the UWB antenna.

2. The intelligent stylus according to claim 1, characterized in that, The first body part further includes a wireless communication processing module and a first communication interface. The touch unit and the first communication interface are electrically connected to the wireless communication processing module, and the wireless communication processing module is used to wirelessly connect with the receiving device. The second body also includes a second communication interface, the UWB chip is electrically connected to the second communication interface, and the second communication interface is contact-connected to the first communication interface.

3. The intelligent stylus according to claim 2, characterized in that, The first body part also includes a second inertial measurement unit, which is electrically connected to the wireless communication processing module.

4. The intelligent stylus according to claim 3, characterized in that, The first communication interface and the second communication interface have corresponding detection terminals. The detection terminals of the first communication interface are electrically connected to the wireless communication processing module, and the detection terminals of the second communication interface are electrically connected to the UWB chip. The wireless communication processing module can interrupt data communication with the second inertial measurement unit according to the signal received by the detection terminals.

5. The intelligent stylus according to claim 1, characterized in that, The first body portion has a first magnetic element at one end away from the touch portion, and the second body portion has a second magnetic element at one end. The first magnetic element and the second magnetic element attract each other to assemble and connect the first body portion and the second body portion.

6. The intelligent stylus according to claim 5, characterized in that, The first body part is provided with a first communication interface, the second body part is provided with a second communication interface, and the end of the first body part away from the touch part is provided with a receiving groove, the first communication interface is located in the receiving groove, and the second communication interface is inserted into the receiving groove.

7. The intelligent stylus according to claim 6, characterized in that, The accommodating slot and the second communication interface are in a circumferential upper limit fit on the first body part.

8. The intelligent stylus according to claim 6, characterized in that, The first communication interface has multiple contacts, and the second communication interface has multiple pins. The multiple contacts and the multiple pins are arranged in a one-to-one correspondence. One end of the pin is electrically connected to the UWB chip, and the other end passes through the first magnetic component.

9. The intelligent stylus according to claim 2, characterized in that, The first body also includes a battery, a charging interface, and a wireless charging module, wherein the charging interface, the wireless charging module, and the wireless communication processing module are electrically connected to the battery.

10. The intelligent stylus according to claim 2, characterized in that, The touch unit includes a pen tip and a pressure sensor. The pressure sensor is electrically connected to the wireless communication processing module, and the pen tip is in contact with the sensing end of the pressure sensor.

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