Multifunctional intelligent handwriting pen and system

Abstract

The utility model discloses a multifunctional intelligent handwriting pen and a system. The intelligent handwriting pen comprises a main control module, a DSP (Digital Signal Processor) module, a pressure sensing module, a communication module and an input module, the input module comprises an OID read-write unit, a key unit and a microphone unit, the OID read-write unit is used for reading written data on an OID code, the microphone unit is used for collecting voice data, the key unit is connected with the main control module, and the OID read-write unit is connected with the DSP module; the main control module is respectively connected with the DSP module, the OID read-write unit, the key unit and the microphone unit; the communication module is in communication connection with the main control module and the electronic equipment. After the pressure sensor obtains a pen point pressure sensing signal, writing data are obtained through the OID read-write unit and can be transmitted to the upper computer through the communication unit to be displayed, voice data can be collected through the microphone unit, and the intelligent pen is convenient to record, rich in function, good in applicability and capable of being widely applied to the technical field of intelligent pens.

Description

Technical Field

[0001] The utility model relates to the technical field of smart pens, and in particular to a multifunctional smart stylus pen and a system. Background Art

[0002] In daily work and study, taking notes is indispensable, and with the development of technology, taking notes can now be done with a smart stylus.

[0003] When in use, the existing intelligent stylus can only perform simple handwriting input, has a single function and poor applicability. Utility Model Content

[0004] In view of this, an object of the embodiments of the present utility model is to provide a multifunctional smart stylus pen and system with rich functions and good applicability.

[0005] In a first aspect, an embodiment of the utility model provides a multifunctional smart stylus, including a main control module, a DSP module, a pressure sensing module, a communication module and an input module;

[0006] The input module includes an OID read / write unit, a key unit and a microphone unit. The OID read / write unit is used to read the written data on the OID code, the microphone unit is used to collect voice data, the key unit is connected to the main control module, and the OID read / write unit is connected to the DSP module;

[0007] The pressure sensing module is used to obtain a pressure sensing signal of the pen tip of the smart stylus, and the pressure sensing module includes a pressure sensor, a first resistor, a second resistor and a first capacitor, the output end of the pressure sensor is connected to the first end of the first resistor, the second end of the first resistor is grounded, the first end of the first capacitor is respectively connected to the first end of the first resistor and the main control module, the second end of the first capacitor is grounded, the first end of the second resistor is connected to an input power supply, and the second end of the second resistor is connected to the input end of the pressure sensor;

[0008] The main control module is connected to the DSP module, the OID reading and writing unit, the key unit and the microphone unit respectively;

[0009] The communication module is respectively connected to the main control module and the electronic device for communication, and the electronic device is used to display the display data sent by the main control module.

[0010] Optionally, the microphone unit includes a first chip and a first chip peripheral circuit, the first chip peripheral circuit includes a third resistor, a fourth resistor, a second capacitor and a third capacitor, the first end of the third resistor is respectively connected to the first output end of the first chip and the first end of the second capacitor, the second end of the third resistor is connected to the first end of the third capacitor, the first end of the fourth resistor is respectively connected to the second output end of the first chip and the second end of the second capacitor, and the second end of the fourth resistor is connected to the second end of the third capacitor.

[0011] Optionally, the main control module includes a chip LQFP64 and a chip LQFP64 peripheral circuit.

[0012] Optionally, the smart stylus further includes a storage module, and the storage module is connected to the chip LQFP64.

[0013] Optionally, the storage module includes a chip GD25Q64 and a peripheral circuit of the chip GD25Q64.

[0014] Optionally, the input module further includes a USB input interface, and the USB input interface is connected to the chip LQFP64.

[0015] Optionally, the USB input interface includes an overvoltage protection circuit, which includes a second chip, a fourth capacitor, a fifth capacitor, a sixth capacitor and a fifth resistor, the first end of the fourth capacitor is connected to the second end of the fifth resistor, the first end of the fifth resistor is connected to the input power supply, the second end of the fourth capacitor is grounded, the first ends of the five capacitors are respectively connected to the input power supply and the input end of the second chip, the second ends of the five capacitors are grounded, the output end of the second chip is connected to the first end of the six capacitors, and the second ends of the six capacitors are grounded.

[0016] Optionally, the smart stylus further includes a power module, and the power module is respectively connected to the OID reading and writing unit, the button unit, the microphone unit, the first chip, the main control module and the DSP module.

[0017] Optionally, the smart stylus further includes a clock module, and the clock module is connected to the main control module.

[0018] In a second aspect, an embodiment of the utility model provides a multifunctional smart stylus system, comprising the above-mentioned smart stylus, a medium printed with an OID code, and an electronic device, wherein the smart stylus is communicatively connected with the electronic device.

[0019] The implementation of the utility model embodiment includes the following beneficial effects: the utility model embodiment provides a multifunctional intelligent stylus, including: a main control module, a DSP module, a pressure sensing module, a communication module and an input module; the input module includes an OID reading and writing unit, a key unit and a microphone unit, the OID reading and writing unit is used to read the writing data on the OID code, the microphone unit is used to collect voice data, the key unit is connected to the main control module, and the OID reading and writing unit is connected to the DSP module; the pressure sensing module is used to obtain the pressure sensing signal of the pen tip of the intelligent stylus, and the pressure sensing module includes a pressure sensor, a first resistor, a second resistor and a first The output end of the pressure sensor is connected to the first end of the first resistor, the second end of the first resistor is grounded, the first end of the first capacitor is respectively connected to the first end of the first resistor and the main control module, the second end of the first capacitor is grounded, the first end of the second resistor is connected to the input power supply, and the second end of the second resistor is connected to the input end of the pressure sensor; the main control module is respectively connected to the DSP module, the OID read-write unit, the button unit and the microphone unit; the communication module is respectively connected to the main control module and the electronic device, and the electronic device is used to display the display data sent by the main control module. After the pressure sensor obtains the pen pressure signal, it obtains the writing data through the OID read-write unit, and can transmit it to the host computer for display through the communication unit, and can collect voice data through the microphone unit, which is convenient for recording, rich in functions and good in applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural block diagram of a multifunctional smart stylus provided by an embodiment of the utility model;

[0021] Figure 2 It is a circuit schematic diagram of the main control module provided by the embodiment of the utility model;

[0022] Figure 3 is a circuit schematic diagram of a microphone unit provided in an embodiment of the utility model;

[0023] Figure 4 This is a circuit diagram of the DSP module provided by the embodiment of the utility model

[0024] Figure 5 It is a circuit schematic diagram of the OID unit provided in an embodiment of the utility model;

[0025] Figure 6 It is a circuit schematic diagram of the pressure sensing module provided by the embodiment of the utility model;

[0026] Figure 7 It is a circuit schematic diagram of a power module provided by an embodiment of the utility model;

[0027] Figure 8 It is a circuit schematic diagram of a storage module provided by an embodiment of the utility model;

[0028] Fig. 9 It is a circuit schematic diagram of an overvoltage protection circuit provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0031] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, unless otherwise specified, "plurality" means two or more.

[0032] First, refer to Figure 1 , the embodiment of the utility model provides a multifunctional intelligent stylus, including a main control module, a DSP module, a pressure sensing module, a communication module and an input module;

[0033] The input module includes an OID read / write unit, a key unit and a microphone unit. The OID read / write unit is used to read the written data on the OID code, the microphone unit is used to collect voice data, the key unit is connected to the main control module, and the OID read / write unit is connected to the DSP module;

[0034] The pressure sensing module is used to obtain a pressure sensing signal of the pen tip of the smart stylus, and the pressure sensing module includes a pressure sensor, a first resistor, a second resistor and a first capacitor, the output end of the pressure sensor is connected to the first end of the first resistor, the second end of the first resistor is grounded, the first end of the first capacitor is respectively connected to the first end of the first resistor and the main control module, the second end of the first capacitor is grounded, the first end of the second resistor is connected to an input power supply, and the second end of the second resistor is connected to the input end of the pressure sensor;

[0035] The main control module is connected to the DSP module, the OID reading and writing unit, the key unit and the microphone unit respectively;

[0036] The communication module is respectively connected to the main control module and the electronic device for communication, and the electronic device is used to display the display data sent by the main control module.

[0037] It should be noted that the control method of the main control module adopts the existing control method.

[0038] Specifically, the corresponding information is input to the main control module through the key unit, and the main control module controls the corresponding module to work. When it is necessary to obtain voice data and / or written data, the corresponding information is input through the key unit, and the main control module drives the microphone unit to collect voice data and / or drives the OID (Optical Identification) read-write unit to read the written text information. The pen tip pressure information is obtained through the pressure sensor of the pressure sensing module, and the pen tip pressure information is filtered and processed by the first resistor and the first capacitor and input to the main control module. The main control module sends a corresponding drive signal to drive the OID read-write unit, and the OID read-write unit starts to read the writing track information of the pen tip, and sends the writing track information (that is, writing data) to the DSP (Digital Signal Processor) module for processing to obtain the corresponding writing information (text information or graphic information). The corresponding information is input through the key unit, and the main control module sends the writing information to electronic devices such as mobile phones, cloud and / or conference screens through the communication module, and displays it in real time on the conference screen. It can also generate corresponding record information after writing and voice collection. The record information is the recorded writing information and voice data. It has various functions to meet different usage needs and has strong applicability.

[0039] In some optional real-time examples, the main control module includes a chip LQFP64 and a chip LQFP64 peripheral circuit.

[0040] In some optional real-time examples, the microphone unit includes a first chip and a first chip peripheral circuit, the first chip peripheral circuit includes a third resistor, a fourth resistor, a second capacitor and a third capacitor, the first end of the third resistor is respectively connected to the first output end of the first chip and the first end of the second capacitor, the second end of the third resistor is connected to the first end of the third capacitor, the first end of the fourth resistor is respectively connected to the second output end of the first chip and the second end of the second capacitor, and the second end of the fourth resistor is connected to the second end of the third capacitor.

[0041] Specifically, refer to Figure 2-3 The main control module adopts the chip LQFP64, and the microphone unit adopts the first chip MIC1. The corresponding voice data is collected through the first chip MIC1 of the microphone unit, and the collected voice data is sent to the main control chip LQFP64 through the first output end (pin 1) of the first chip MIC1 and the second output end (pin 2) of the first chip MIC1. The specific voice data is filtered through the third resistor R26, the fourth resistor R27, the second capacitor C26 and the third capacitor C27 to filter the interference noise, and the ripple is filtered through the capacitors C22 and C28, and then connected to the pin 53 (MICP) of the main control chip LQFP64 through the endpoint MICP, and connected to the pin 54 (MICN) of the main control chip LQFP64 through the endpoint MICN, so that the collected voice data is sent to the main control chip LQFP64. Pin 4 of the first chip MIC1 is connected to pin 50 (MIC_BIAS) of the main control chip LQFP64 through the endpoint MIC_BIAS, and pin 3 of the first chip MIC1 is connected to pin 56 (VSSA) of the main control chip LQFP64 through the endpoint VSSA, thereby receiving the driving voltage sent by the main control chip LQFP64 to drive the first chip MIC1 to work.

[0042] In some optional embodiments, referring to Figure 4-5The OID read / write unit reads the written data on the OID code, specifically the writing medium printed with the OID code, through the read / write chip 02_OID. Pin LDO_3V3 of the read-write chip 02_OID is connected to the power supply, and pin OID_RES of the read-write chip 02_OID is connected to pin 21 of the main control chip LQFP6, so as to receive a reset signal for reset; pin OID_2wire_SCK of the read-write chip 02_OID is respectively connected to pin 36 of the main control chip LQFP6 and pin P0.9 of the DSP chip 01_DSP, and pin OID_2wire_SDIO of the read-write chip 02_OID is respectively connected to pin 37 of the main control chip LQFP6 and pin P0.8 of the DSP chip 01_DSP, so as to send read-write instructions to the read-write chip 02_OID through the main control chip LQFP6, and the read-write chip 02_OID reads the written data and sends the written data to the DSP chip 01_DSP for processing. After processing, it can be sent to the storage module for storage, or sent to other electronic devices through the communication module.

[0043] In some optional embodiments, referring to Figure 6 The pressure sensing module includes a pressure sensor J1, a first resistor R9, a second resistor R8 and a first capacitor C4. The pressure sensor J1 obtains the pen tip pressure sensing information, and then outputs it through pin 1. After filtering the interference through the first resistor R9 and the first capacitor C4, it is transmitted to the endpoint P_SENSOR, and the pen tip pressure sensing information is transmitted to the pin 41 of the main control chip LQFP6 through the endpoint P_SENSOR. The first end of the second resistor R8 is connected to the input power supply, and after matching the input power supply, the voltage is input to the pressure sensor J1, thereby driving the pressure sensor J1 to work.

[0044] In some optional embodiments, the smart stylus also includes a power module, and the power module is respectively connected to the OID reading and writing unit, the button unit, the microphone unit, the first chip, the main control module and the DSP module.

[0045] Specifically, refer to Figure 7, the power module includes a power management chip 03_POWER, and the power management chip 03_POWER manages the power. Specifically, the voltage VBAT is provided by the battery BT1, and the DC voltage USB_5V is input through the USB. Therefore, the DC voltage can be input through the USB to power the smart stylus, and the battery BT1 can also be charged. At the same time, the battery BT1 is used to power when there is no input voltage on the USB. After the switch SW1 is closed, the power management chip 03_POWER is turned on and provides power. The power management chip 03_POWER transmits the voltage of the battery BT1 to each module of the smart stylus through the pin BAT_DET, and the power management chip 03_POWER transmits the voltage input from the USB to each module of the smart stylus through the pin USB_DET, provides voltage to the key unit through the pin SW_VOL_DET, and transmits different voltages to each part of the smart stylus through the pins BAT_CHRG, PVDD, LDO_3V3, and KEEP_PWR. The reset signal sent by the main control chip LQFP64 is received through the pin RST, thereby resetting.

[0046] In some optional embodiments, the smart stylus further includes a storage module, and the storage module is connected to the chip LQFP64.

[0047] In some optional embodiments, the storage module includes a chip GD25Q64 and a peripheral circuit of the chip GD25Q64.

[0048] Specifically, refer to Figure 8 The memory chip GD25Q64 of the memory module stores writing data and voice data, specifically, the memory chip GD25Q64 is connected to the pin 13 of the main control chip LQFP64 through the pin 1 of the memory chip GD25Q64 to receive the enable signal; the memory chip GD25Q64 is connected to the pin 11 of the main control chip LQFP64 through the pin 2 of the memory chip GD25Q64, the memory chip GD25Q64 is connected to the pin 9 of the main control chip LQFP64 through the pin 3 of the memory chip GD25Q64, the memory chip GD25Q64 is connected to the pin 10 of the main control chip LQFP64 through the pin 5 of the memory chip GD25Q64, the memory chip GD25Q64 is connected to the pin 12 of the main control chip LQFP64 through the pin 6 of the memory chip GD25Q64, and the memory chip GD25Q64 is connected to the pin 8 of the main control chip LQFP64, thereby receiving the writing data, voice data or other data sent by the main control chip, and extracting and using it from the memory chip GD25Q64 when it needs to be extracted. The working voltage is input to the pin 8 of the memory chip GD25Q64.

[0049] In some optional embodiments, the input module further includes a USB input interface, and the USB input interface is connected to the chip LQFP64.

[0050] In some optional embodiments, the USB input interface includes an overvoltage protection circuit, which includes a second chip, a fourth capacitor, a fifth capacitor, a sixth capacitor and a fifth resistor, the first end of the fourth capacitor is connected to the second end of the fifth resistor, the first end of the fifth resistor is connected to the input power supply, the second end of the fourth capacitor is grounded, the first ends of the five capacitors are respectively connected to the input power supply and the input end of the second chip, the second ends of the five capacitors are grounded, the output end of the second chip is connected to the first end of the six capacitors, and the second ends of the six capacitors are grounded.

[0051] Specifically, refer to Fig. 9 Pin 3 of the second chip U6 in the overvoltage protection circuit inputs the voltage USB_5V input by the USB input interface, and filters interference through the fourth capacitor C38, the fifth capacitor C39 and the fifth resistor R51; after voltage stabilization by the second chip U6, a stable 5V voltage is output, and filtered through the sixth capacitor C40, thereby ensuring that the voltage USB_5V input by the USB input interface is stable.

[0052] In some optional embodiments, the smart stylus further includes a clock module, and the clock module is connected to the main control module.

[0053] Specifically, the clock module includes a clock chip, which generates a corresponding crystal oscillator signal to the clock chip through a crystal oscillator. The clock chip generates a corresponding clock signal and sends the clock signal to pin 28 of the main control chip LQFP64.

[0054] The implementation of the utility model embodiment includes the following beneficial effects: the utility model embodiment provides a multifunctional intelligent stylus, including a main control module, a DSP module, a pressure sensing module, a communication module and an input module; the input module includes an OID reading and writing unit, a key unit and a microphone unit, the OID reading and writing unit is used to read the writing data on the OID code, the microphone unit is used to collect voice data, the key unit is connected to the main control module, and the OID reading and writing unit is connected to the DSP module; the pressure sensing module is used to obtain the pressure sensing signal of the pen tip of the intelligent stylus, and the pressure sensing module includes a pressure sensor, a first resistor, a second resistor and a first The output end of the pressure sensor is connected to the first end of the first resistor, the second end of the first resistor is grounded, the first end of the first capacitor is respectively connected to the first end of the first resistor and the main control module, the second end of the first capacitor is grounded, the first end of the second resistor is connected to the input power supply, and the second end of the second resistor is connected to the input end of the pressure sensor; the main control module is respectively connected to the DSP module, the OID read-write unit, the button unit and the microphone unit; the communication module is respectively connected to the main control module and the electronic device, and the electronic device is used to display the display data sent by the main control module. After the pressure sensor obtains the pen pressure signal, it obtains the writing data through the OID read-write unit, and can transmit it to the host computer for display through the communication unit, and can collect voice data through the microphone unit, which is convenient for recording, rich in functions and good in applicability.

[0055] In a second aspect, an embodiment of the utility model provides a multifunctional smart stylus system, comprising the above-mentioned smart stylus, a medium printed with an OID code, and an electronic device, wherein the smart stylus is communicatively connected with the electronic device.

[0056] It can be seen that the contents of the above smart stylus embodiments are all applicable to the present system embodiments, the functions specifically implemented by the present system embodiments are the same as those of the above smart stylus embodiments, and the beneficial effects achieved are also the same as those achieved by the above smart stylus embodiments.

[0057] In the description of this specification, the description with reference to the term "in a specific embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A multifunctional smart stylus, characterized in that: It includes a main control module, a DSP module, a pressure sensing module, a communication module and an input module; The input module includes an OID read / write unit, a key unit and a microphone unit. The OID read / write unit is used to read the written data on the OID code, the microphone unit is used to collect voice data, the key unit is connected to the main control module, and the OID read / write unit is connected to the DSP module; The pressure sensing module is used to obtain a pressure sensing signal of the pen tip of the smart stylus, and the pressure sensing module includes a pressure sensor, a first resistor, a second resistor and a first capacitor, the output end of the pressure sensor is connected to the first end of the first resistor, the second end of the first resistor is grounded, the first end of the first capacitor is respectively connected to the first end of the first resistor and the main control module, the second end of the first capacitor is grounded, the first end of the second resistor is connected to an input power supply, and the second end of the second resistor is connected to the input end of the pressure sensor; The main control module is connected to the DSP module, the OID reading and writing unit, the key unit and the microphone unit respectively; The communication module is respectively connected to the main control module and the electronic device for communication, and the electronic device is used to display the display data sent by the main control module.

2. The smart stylus according to claim 1, characterized in that: The microphone unit includes a first chip and a first chip peripheral circuit, the first chip peripheral circuit includes a third resistor, a fourth resistor, a second capacitor and a third capacitor, the first end of the third resistor is respectively connected to the first output end of the first chip and the first end of the second capacitor, the second end of the third resistor is connected to the first end of the third capacitor, the first end of the fourth resistor is respectively connected to the second output end of the first chip and the second end of the second capacitor, and the second end of the fourth resistor is connected to the second end of the third capacitor.

3. The smart stylus according to claim 1, characterized in that: The main control module includes a chip LQFP64 and a chip LQFP64 peripheral circuit.

4. The smart stylus according to claim 3, characterized in that: The smart stylus also includes a storage module, and the storage module is connected to the chip LQFP64.

5. The smart stylus according to claim 4, characterized in that: The storage module includes a chip GD25Q64 and a peripheral circuit of the chip GD25Q64.

6. The smart stylus according to claim 3, characterized in that: The input module also includes a USB input interface, and the USB input interface is connected to the chip LQFP64.

7. The smart stylus according to claim 6, characterized in that: The USB input interface includes an overvoltage protection circuit, which includes a second chip, a fourth capacitor, a fifth capacitor, a sixth capacitor and a fifth resistor, the first end of the fourth capacitor is connected to the second end of the fifth resistor, the first end of the fifth resistor is connected to the input power supply, the second end of the fourth capacitor is grounded, the first ends of the five capacitors are respectively connected to the input power supply and the input end of the second chip, the second ends of the five capacitors are grounded, the output end of the second chip is connected to the first end of the six capacitors, and the second ends of the six capacitors are grounded.

8. The smart stylus according to claim 2, characterized in that: The smart stylus also includes a power module, which is respectively connected to the OID reading and writing unit, the button unit, the microphone unit, the first chip, the main control module and the DSP module.

9. The smart stylus according to claim 1, characterized in that: The smart stylus also includes a clock module, and the clock module is connected to the main control module.

10. A multifunctional smart stylus system, characterized in that: The invention comprises the smart stylus as claimed in any one of claims 1 to 9, a medium printed with an OID code and an electronic device, wherein the smart stylus is communicatively connected with the electronic device.

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