WO2022011787A1 - 智能笔节能方法 - Google Patents

智能笔节能方法 Download PDF

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Publication number
WO2022011787A1
WO2022011787A1 PCT/CN2020/110905 CN2020110905W WO2022011787A1 WO 2022011787 A1 WO2022011787 A1 WO 2022011787A1 CN 2020110905 W CN2020110905 W CN 2020110905W WO 2022011787 A1 WO2022011787 A1 WO 2022011787A1
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WIPO (PCT)
Prior art keywords
smart pen
processor
pressure switch
port
capacitor
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PCT/CN2020/110905
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English (en)
French (fr)
Inventor
卢启伟
陈方圆
卢炀
陈鹏宇
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深圳市鹰硕教育服务有限公司
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Publication of WO2022011787A1 publication Critical patent/WO2022011787A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3259—Power saving in cursor control device, e.g. mouse, joystick, trackball
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0383—Signal control means within the pointing device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0386—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry for light pen

Definitions

  • the present invention relates to the technical field of smart pens, in particular to a method for energy saving of smart pens.
  • the battery capacity of the smart pen itself is low, and at the same time, the smart pen itself has many components, resulting in a large power consumption of the smart pen.
  • the battery power of the smart pen cannot support the battery life of the smart pen for a long time, which affects the user's experience of using the smart pen.
  • the embodiments of the present invention provide a smart pen, which is used to provide a smart pen solution with simple structure, easy maintenance and high work efficiency by means of hardware structure and hardware structure combination, and the smart pen energy saving method ,include:
  • a first pressure switch is provided at the end of the smart pen, the first pressure quick switch can perform a switching operation in a reciprocating cycle, and the first end of the pressure switch is connected to the driving voltage;
  • a second pressure switch is arranged at the end of the refill of the smart pen, and when the pressure of the pen tip when writing on the writing paper exceeds a preset threshold, the second pressure switch generates a trigger signal;
  • the processor further determines whether the second pressure switch is in an on state, and if so, the processor controls the infrared transceiver circuit on the smart pen to send signals to the smart pen
  • the writing paper area emits infrared light signals, and by reading the reflected signals of the infrared light, the writing marks of the smart pen on the writing paper are further determined.
  • the method further includes:
  • the processor further determines whether the switch of the second pressure is in an off state within a preset time
  • the processor is controlled to enter a sleep state.
  • the setting of the first pressure switch at the end of the smart pen includes:
  • a movable part matched with the first pressure switch is arranged at the end of the smart pen, the movable part has a preset movement stroke, and when the first pressure switch is in an electrical connection state, the movable part is The movable member is at a first movement stroke, and the movable member is at a second movement stroke when the first pressure switch is in an off state.
  • the setting of the first pressure switch at the end of the smart pen further includes:
  • arranging a second pressure switch at the end of the refill of the smart pen includes:
  • the second end of the second pressure switch is connected to a second processor interface on the processor, so that the processor can detect the trigger signal based on the second processor interface.
  • the method further includes:
  • the processor After the infrared transceiver circuit emits an infrared light signal, the trajectory formed by the pen tip in the writing area is collected to form trajectory information, and the processor performs data conversion processing on the trajectory information through a preset data processing algorithm, form a track digital signal;
  • the track digital signal stored in the memory is sent to the target terminal.
  • the method further includes:
  • the power management circuit includes a first port, a second port, a third port and a fourth port;
  • the first port is used to provide a high-level power supply signal, and the first port is sequentially connected with the first resistor and the first inductor to form a high-level supply point;
  • the second port and the third port are used to provide a differential connection information channel
  • the fourth port provides a ground connection signal, and the fourth port is connected to the ground through a second inductor.
  • the high-level power supply point is connected to the first end of the first capacitor and the second capacitor in parallel, and the second end of the first capacitor and the second capacitor connected to ground;
  • the second port is connected to the first end of the second resistor, and the second end of the second resistor forms a first differential signal connection point;
  • the third port is connected to the first end of the third resistor, and the second end of the third resistor forms a second differential signal connection point;
  • the first end of the first resistor is connected to the first end of the first electrostatic discharge diode, and the second end of the first electrostatic discharge diode is connected to the ground;
  • the first end of the second resistor is connected to the first end of the second electrostatic discharge diode, and the second end of the second electrostatic discharge diode is connected to the ground;
  • the first end of the third resistor is connected to the first end of the third electrostatic discharge diode, and the second end of the third electrostatic discharge diode is connected to the ground;
  • the first port, the second port, the third port and the fourth port are arranged in parallel in the form of USB interfaces.
  • the method includes:
  • a fourth resistor, a Bluetooth chip, a third capacitor, a fourth capacitor and a light-emitting diode are arranged in the Bluetooth module;
  • the bluetooth chip includes a first bluetooth interface, a second bluetooth interface and a third bluetooth interface, and the first bluetooth interface is connected to the second end of the fourth resistor for receiving power signals;
  • a third capacitor and a fourth capacitor the first ends of the third capacitor and the fourth capacitor are connected to the second end of the fourth resistor, and the second ends of the third capacitor and the fourth capacitor are connected to the ground;
  • the first end of the light-emitting diode is connected to the second Bluetooth interface of the Bluetooth chip
  • the second end of the light-emitting diode is connected to the third processor interface of the processor
  • the second Bluetooth interface is connected to the second Bluetooth interface of the processor.
  • the third processor interface is used for data transmission between the Bluetooth chip and the processor, and the light emitting diodes display the frequency of data transmission in the form of flashes.
  • the Bluetooth module further includes:
  • the first end of the third inductor is connected to the third Bluetooth interface of the Bluetooth chip
  • the first end of the fifth capacitor is connected to the second end of the third inductor
  • a Bluetooth transmitting antenna which is connected to the second end of the fifth capacitor
  • a fourth inductor the first end of the fourth inductor is connected to the second end of the third inductor, and the second end of the fourth inductor is connected to the ground.
  • the energy-saving method for a smart pen includes disposing a first pressure switch at the end of the smart pen, the first pressure quick switch can perform a switching operation in a reciprocating cycle, and a first end of the pressure switch is connected to a driving voltage;
  • a second pressure switch is arranged at the end of the refill of the smart pen. When the pressure of the pen tip on the writing paper exceeds a preset threshold, the second pressure switch generates a trigger signal;
  • a processor interface is connected to the second end of the first pressure switch.
  • the processor When the first pressure switch is in an electrical connection state, the processor starts a self-test process driven by the driving voltage; After the processor completes the self-checking process, the processor further determines whether the second pressure switch is in an on state, and if so, the processor controls the infrared transceiver circuit on the smart pen to send to the writing paper area of the smart pen The infrared light signal is emitted, and the writing trace of the smart pen on the writing paper is further determined by reading the reflected signal of the infrared light.
  • the solution of the present invention can effectively save energy on the smart pen.
  • FIG. 1 is a schematic flowchart of a smart pen energy saving method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a smart pen energy saving method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a smart pen energy saving method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a smart pen energy saving method according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a smart pen according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a circuit structure of a smart pen according to an embodiment of the present invention.
  • an embodiment of the present disclosure provides a smart pen energy saving method, including the following steps:
  • a first pressure switch is provided at the end of the smart pen, the first pressure switch can perform a switching operation in a reciprocating cycle, and a first end of the pressure switch is connected to a driving voltage.
  • the dot matrix digital pen can print a layer of invisible dot matrix pattern on ordinary paper.
  • the high-speed camera at the front of the digital pen captures the movement trajectory of the pen tip at any time, and the pressure sensor transmits the pressure data back to data processing. device, and finally transmit the information through Bluetooth or USB cable. Synchronize the handwriting recording process with the writing process.
  • the dot matrix digital pen stores the words or pictures written on the paper in the computer in the form of bitmaps to form documents.
  • the solution of the present application is carried out by taking the dot matrix pen as an example. Of course, the solution of the present application is not limited to the dot matrix pen itself, and other smart pens with similar functions to the dot matrix pen can adopt the solution of the present application.
  • a first pressure switch is provided at the end of the smart pen (see FIG. 5 ).
  • the state of the first pressure switch can be set to the closed state, after the first pressure switch is closed , the first pressure switch transmits the connected driving voltage to a component (eg, a processor) of the smart pen that needs to perform power supply operation, so that the voltage can be saved.
  • a component eg, a processor
  • the processor detects that the smart pen has not performed a writing operation for a long time, it can control the power management module to cut off the infrared transceiver The power supply of the module, communication module, and storage module enters standby mode. After the processor detects that the smart pen has not been writing for a long time, it can control the power management module to cut off the power supply of the infrared transceiver module, communication module, and storage module, and enter the standby mode. .
  • a second pressure switch is provided at the end of the refill of the smart pen, and when the pressure of the pen tip when writing on the writing paper exceeds a preset threshold, the second pressure switch generates a trigger signal.
  • the second pressure switch is arranged at the tip of the smart pen.
  • the first pressure switch When the first switch is in a closed electrical connection state, the first pressure switch automatically supplies power to the second pressure switch, thereby activating the second pressure switch.
  • the second pressure switch When the user writes on the writing paper with the smart pen, when the pressure of the pen tip exceeds the preset threshold, the second pressure switch automatically generates a trigger signal, which can be transmitted to the processor through the connecting line for further processing.
  • a first processor interface is specially provided in the processor, and the first processor interface is electrically connected to the second end of the first pressure switch, so that when the first pressure switch is in the closed state, the processor can Electrical operation, so as to carry out the self-test process. Through the self-test process, the processor can check whether the various components on the smart pen are in working condition.
  • the processor further determines whether the second pressure switch is in an on state, and if so, the processor controls the infrared transceiver circuit on the smart pen to send a message to the smart pen
  • the writing paper area of the pen emits infrared light signals, and by reading the reflected signals of the infrared light, the writing marks of the smart pen on the writing paper are further determined.
  • the infrared transceiver circuit on the smart pen can be controlled to the writing area on the writing paper.
  • the infrared light is emitted, and the user's writing marks on the writing paper are further determined by reading the reflected light of the infrared light.
  • the power supply of the smart pen can be managed, and the purpose of saving power is achieved.
  • the method further includes:
  • the processor further determines whether the switch of the second pressure is in an off state within a preset time.
  • the energy consumption of the processor can be further controlled, thereby further achieving the purpose of energy saving.
  • the disposing the first pressure switch at the end of the smart pen includes: disposing a movable component matched with the first pressure switch at the end of the smart pen, so The movable member has a preset movement stroke, when the first pressure switch is in an electrical connection state, the movable member is at the first movement stroke, and when the first pressure switch is in a disconnected state, all The movable member is at the second movement stroke.
  • arranging the first pressure switch at the end of the smart pen further includes:
  • the second pressure switch can be powered on in time when the first pressure switch is in an electrically connected state.
  • the disposing the second pressure switch at the end of the refill of the smart pen includes: connecting the second end of the second pressure switch with the second processing on the processor The processor interface is connected so that the processor detects the trigger signal based on the second processor interface.
  • the method further includes:
  • a camera acquisition module may be used to collect a trajectory formed by the pen tip in the writing area to form trajectory information, the processor uses a preset data processing algorithm, the The track information is processed by data conversion to form a track digital signal;
  • the method further includes:
  • a power management circuit includes a first port, a second port, a third port and a fourth port, wherein the first port, the second port, the third port and the fourth port can be integrated as interface terminals through the The mode exists, so that the user can directly operate each port through the interface terminal.
  • the interface terminal can be operated according to various standard interfaces. For example, the interface terminal can be set by adopting the protocol standard of the USB port, and the first port, the second port, the third port and the fourth port can be set accordingly.
  • the first port is used to provide a high-level power supply signal, and the first port is sequentially connected with the first resistor and the first inductor to form a high-level supply point; the second port and the third port are used for A differential connection information channel is provided; the fourth port is for providing a ground connection signal, and the fourth port is connected to the ground through a second inductance.
  • the high-level power supply point is connected to the first end of the first capacitor and the second capacitor in parallel, and the second end of the first capacitor and the second capacitor connected to ground;
  • the second port is connected to the first end of the second resistor, the second end of the second resistor forms a first differential signal connection point;
  • the third port is connected to the first end of the third resistor , the second end of the third resistor forms a second differential signal connection point;
  • the first end of the first resistor is connected to the first end of the first electrostatic discharge diode, and the second end of the first electrostatic discharge diode connected to the ground;
  • the first end of the second resistor is connected to the first end of the second electrostatic discharge diode, the second end of the second electrostatic discharge diode is connected to the ground;
  • the first end of the third resistor is connected to the ground
  • the first end of the third electrostatic discharge diode is connected to the ground, and the second end of the third electrostatic discharge diode is connected to the ground;
  • the method includes: setting a fourth resistor, a Bluetooth chip, a third capacitor, a fourth capacitor, and a light-emitting diode in a Bluetooth module;
  • the Bluetooth chip includes a first Bluetooth interface, The second bluetooth interface and the third bluetooth interface, the first bluetooth interface is connected with the second end of the fourth resistor for receiving the power signal;
  • the third capacitor and the fourth capacitor, the third capacitor and the fourth The first end of the capacitor is connected to the second end of the fourth resistor, the second end of the third capacitor and the fourth capacitor is connected to the ground;
  • the first end of the light emitting diode is connected to the second end of the Bluetooth chip Bluetooth interface connection, the second end of the light-emitting diode is connected with the third processor interface of the processor, and the second Bluetooth interface and the third processor interface are used to perform communication between the Bluetooth chip and the processor.
  • the light-emitting diodes display the frequency of data transmission in the form of flashes. In this way, a stable power input
  • the Bluetooth module further includes:
  • a third inductor the first end of the third inductor is connected to the third Bluetooth interface of the Bluetooth chip with a fifth capacitor, the first end of the fifth capacitor is connected to the second end of the third inductor, the Bluetooth a transmitting antenna, the Bluetooth transmitting antenna is connected to the second end of the fifth capacitor, the fourth inductor, the first end of the fourth inductor is connected to the second end of the third inductor, the fourth inductor The second end is connected to ground.
  • the infrared transceiver circuit includes an infrared emission module and an infrared acquisition module; the infrared emission module includes an infrared diode and a seventh resistor connected in series, and the first end of the infrared diode is connected to a seventh resistor.
  • the infrared acquisition module includes a fifth resistor, A sixth resistor, an infrared induction triode and a sixth capacitor; the first end of the fifth resistor is connected to the collector of the switching triode, and the second end of the fifth resistor is connected to the emitter of the infrared induction triode ; the first end of the sixth resistor is connected with the second end of the fifth resistor, and the second end of the sixth resistor is connected with the base end of the infrared induction triode; the first end of the sixth capacitor is connected The terminal is connected to the base terminal of the infrared sensing triode, and the second terminal of the sixth capacitor is connected to the fourth interface of the processor.
  • the embodiment of the present disclosure also includes a first pressure switch and a second pressure switch, wherein the first pressure switch is directly connected to the fifth interface of the processor, and the fifth interface of the processor can monitor the first pressure switch in real time.
  • the second pressure switch is sequentially connected with the operational amplifier, the ninth resistor and the third switch triode.
  • the inverting input terminal of the operational amplifier is connected to the base terminal of the third switching transistor, and is grounded through the eighth resistor.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • the energy-saving operation of the smart pen can be performed based on different states of the smart pen.

Abstract

一种智能笔节能方法，属于智能笔技术领域，包括：在智能笔的末端设置第一压力开关（S101）；在智能笔的笔芯尾部设置第二压力开关，当笔尖在书写纸上书写时的压力超过预设阈值后，第二压力开关生成触发信号（S102）；将智能笔处理器的第一处理器接口与第一压力开关的第二端连接（S103）；在处理器完成自检流程之后，处理器进一步判断第二压力开关是否于导通状态，若是，则处理器控制智能笔上的红外收发电路向智能笔的书写纸区域发射红外光信号，并通过读取红外光的反射信号，来进一步的确定智能笔在书写纸上的书写痕迹（S104）。能够基于智能笔的不同状态对智能笔进行节能操作。

Description

智能笔节能方法 技术领域
本发明涉及智能笔技术领域，尤其涉及一种智能笔节能方法。
背景技术
书写是一种很奇妙的体验，在纸上书写永远有着一种魅力，即便是在信息化时代，人们总是渴望保存手写笔记的愿望。特别是在智慧教育方面，当电磁书写识别、红外点阵识别、超声波识别等黑科技融入到书写之中，便有了各式各样的智能书写笔。
现有技术中，由于智能笔中各个组件较多，在使用智能笔的过程中，会由于智能笔本身电池容量较低，而同时智能笔本身元器件较多，导致智能笔电量消耗较大，智能笔的电池电量不能长期支持智能笔的续航，影响了用户对于智能笔的使用体验。
因此，亟需一种全新的结构简单、易维护且工作效率高的智能笔节能解决方案。
发明内容
有鉴于此，本发明实施例提供了一种智能笔，用以通过硬件结构及硬件结构组合的方式，提供一种结构简单、易维护且工作效率高的智能笔解决方案，该智能笔节能方法，包括：
在智能笔的末端设置第一压力开关，所述第一压力快关能够往复循环执行开关操作，所述压力开关的第一端与驱动电压连接；
在所述智能笔的笔芯尾部设置第二压力开关，当笔尖在书写纸上书写时的压力超过预设阈值后，所述第二压力开关生成触发信号；
将所述智能笔处理器的第一处理器接口与所述第一压力开关的第二端连接，当所述第一压力开关处于电连接状态时，所述处理器在所述驱动电压的驱动下启动自检流程；
在所述处理器完成自检流程之后，所述处理器进一步判断所述第二压力 开关是否处于导通状态，若是，则处理器控制所述智能笔上的红外收发电路向所述智能笔的书写纸区域发射红外光信号，并通过读取所述红外光的反射信号，来进一步的确定所述智能笔在书写纸上的书写痕迹。
根据本公开实施例的一种具体实现方式，所述方法还包括：
所述处理器进一步判断预设时间内第二压力是否开关处于断开状态；
若是，则控制所述处理器进入休眠状态。
根据本公开实施例的一种具体实现方式，所述在智能笔的末端设置第一压力开关，包括：
在所述智能笔的末端设置与所述第一压力开关配套连接的可移动部件，所述可移动部件具有预设的移动行程，在所述第一压力开关处于电连接状态时，所述可移动部件在第一移动行程处，在所述第一压力开关处于断开状态时，所述可移动部件在第二移动行程处。
根据本公开实施例的一种具体实现方式，所述在智能笔的末端设置第一压力开关，还包括：
将所述第一压力开关的第一端与所述智能笔驱动电压的供应点进行连接；
将所述第一压力开关的第二端与所述第二压力开关的第一端进行连接。
根据本公开实施例的一种具体实现方式，所述在所述智能笔的笔芯尾部设置第二压力开关，包括：
将所述第二压力开关的第二端与处理器上的第二处理器接口进行连接，以便于所述处理器基于所述第二处理器接口来检测所述触发信号。
根据本公开实施例的一种具体实现方式，所述方法还包括：
在所述红外收发电路发射红外光信号之后，采集所述笔尖在所述书写区域形成的轨迹，形成轨迹信息，所述处理器通过预设的数据处理算法，所述轨迹信息进行数据转换处理，形成轨迹数字信号；
存储所述处理器形成的轨迹数字信号；
在所述智能笔与目标终端通信连接成功之后，将所述存储器中存储的轨 迹数字信号发送给所述目标终端。
根据本公开实施例的一种具体实现方式，所述方法还包括：
设置电源管理电路，所述电源管理电路包括第一端口、第二端口、第三端口及第四端口；
所述第一端口用于提供高电平电源信号，所述第一端口依次与第一电阻和第一电感连接，形成高电平供应点；
所述第二端口和所述第三端口用于提供差分连接信息通道；
所述第四端口为提供地连接信号，所述第四端口通过第二电感与地连接。
根据本公开实施例的一种具体实现方式，所述高电平供电点与并联的第一电容和第二电容的第一端连接，所述第一电容和所述第二电容的第二端与地连接；
所述第二端口与第二电阻的第一端连接，所述第二电阻的第二端形成第一差分信号连接点；
所述第三端口与第三电阻的第一端连接，所述第三电阻的第二端形成第二差分信号连接点；
所述第一电阻的第一端与第一静电放电二极管的第一端连接，所述第一静电放电二极管的第二端与地连接；
所述第二电阻的第一端与第二静电放电二极管的第一端连接，所述第二静电放电二极管的第二端与地连接；
所述第三电阻的第一端与第三静电放电二极管的第一端连接，所述第三静电放电二极管的第二端与地连接；
所述第一端口、所述第二端口、所述第三端口及所述第四端口以USB接口的形式平行设置。
根据本公开实施例的一种具体实现方式，所述方法包括：
在蓝牙模块中设置第四电阻、蓝牙芯片、第三电容、第四电容和发光二极管；
所述蓝牙芯片包括第一蓝牙接口、第二蓝牙接口和第三蓝牙接口，所述第一蓝牙接口与所述第四电阻的第二端连接，用于接收电源信号；
第三电容和第四电容，所述第三电容和第四电容的第一端与所述第四电阻的第二端连接，所述第三电容和第四电容的第二端与地连接；
所述发光二极管的第一端与所述蓝牙芯片的第二蓝牙接口连接，所述发光二极管的第二端与所述处理器的第三处理器接口连接，所述第二蓝牙接口和所述第三处理器接口用于进行蓝牙芯片和处理器之间的数据传输，所述发光二极管通过闪光的形式展示数据传输的频率。
根据本公开实施例的一种具体实现方式，所述蓝牙模块还包括：
第三电感，所述第三电感的第一端与所述蓝牙芯片的第三蓝牙接口连接；
第五电容，所述第五电容的第一端与所述第三电感的第二端连接；
蓝牙发射天线，所述蓝牙发射天线与所述第五电容的第二端连接；
第四电感，所述第四电感的第一端与所述第三电感的第二端连接，所述第四电感的第二端与地连接。
本发明实施例提供的智能笔节能方法，包括在智能笔的末端设置第一压力开关，所述第一压力快关能够往复循环执行开关操作，所述压力开关的第一端与驱动电压连接；在所述智能笔的笔芯尾部设置第二压力开关，当笔尖在书写纸上书写时的压力超过预设阈值后，所述第二压力开关生成触发信号；将所述智能笔处理器的第一处理器接口与所述第一压力开关的第二端连接，当所述第一压力开关处于电连接状态时，所述处理器在所述驱动电压的驱动下启动自检流程；在所述处理器完成自检流程之后，所述处理器进一步判断所述第二压力开关是否处于导通状态，若是，则处理器控制所述智能笔上的红外收发电路向所述智能笔的书写纸区域发射红外光信号，并通过读取所述红外光的反射信号，来进一步的确定所述智能笔在书写纸上的书写痕迹，通过本发明的方案，能够有效的对智能笔进行节能。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要 使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本发明实施例提供的一种智能笔节能方法的流程示意图；
图2为本发明实施例提供的一种智能笔节能方法的流程示意图；
图3为本发明实施例提供的一种智能笔节能方法的流程示意图；
图4为本发明实施例提供的一种智能笔节能方法的流程示意图；
图5为本发明实施例提供的一种智能笔的结构示意图；
图6为本发明实施例提供的一种智能笔的电路结构示意图。
具体实施方式
下面结合附图对本发明实施例进行详细描述。
应当明确，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
参见图1，本公开实施例提供了一种智能笔节能方法，包括如下步骤：
S101，在智能笔的末端设置第一压力开关，所述第一压力快关能够往复循环执行开关操作，所述压力开关的第一端与驱动电压连接。
作为智能笔的一种，点阵数码笔，可以在普通纸张上印刷一层不可见的点阵图案，数码笔前端的高速摄像头随时捕捉笔尖的运动轨迹，同时压力传感器将压力数据传回数据处理器，最终将信息通过蓝牙或者USB线向外传输。做到笔迹记录过程与书写过程同步。当书写时，点阵数码笔将纸张上书写的文字或者图片以位图的形式存储在电脑中，形成文档。本申请的方案以点阵笔为例进行，当然，本申请的方案并不限于点阵笔本身，其他与点阵笔具有类似功能的智能笔均可以采用本申请的方案。
智能笔在使用的过程中，由于没有严格的节能管理方案，通常会导致电池中的能源消耗过快，影响智能笔中存储的电量的使用寿命。
为此，在智能笔的末端设置第一压力开关(参见图5)，当用户使用智能笔进行书写操作时，可以通过将第一压力开关的状态设置为闭合状态，在第一压力开关闭合之后，第一压力开关将连接的驱动电压传递给需要进行供电操作的智能笔的部件(例如，处理器)，从而能够节约电压。作为一种情况，当智能笔处于闭合状态的时间达到一预设值，且智能笔没有进行书写操作之后，处理器检测到智能笔长久没有进行书写操作后，可以控制电源管理模块，切断红外收发模块、通讯模块、存储模块的电源供应，进入待机模式处理器检测到智能笔长久没有进行书写操作后，可以控制电源管理模块，切断红外收发模块、通讯模块、存储模块的电源供应，进入待机模式。
S102，在所述智能笔的笔芯尾部设置第二压力开关，当笔尖在书写纸上书写时的压力超过预设阈值后，所述第二压力开关生成触发信号。
第二压力开关设置在智能笔的笔尖处，当第一开关处于闭合的电连接状态时，第一压力开关自动给第二压力开关供电，从而激活第二压力开关。当用户通过智能笔在书写纸上进行书写操作时，当笔尖的压力超过预设阈值之后，第二压力开关自动生成触发信号，该触发信号可以通过连接线传递给处理器进行下一步的处理。
S103，将所述智能笔处理器的第一处理器接口与所述第一压力开关的第二端连接，当所述第一压力开关处于电连接状态时，所述处理器在所述驱动电压的驱动下启动自检流程。
在处理器中专门设置第一处理器接口，第一处理器接口与第一压力开关的第二端电连接，这样一来，当第一压力开关处于关闭状态的情况下，处理器能够进行上电操作，从而进行自检流程。通过自检流程，处理器能够检查智能笔上的各个组成部件是否处于工作状态。
S104，在所述处理器完成自检流程之后，所述处理器进一步判断所述第二压力开关是否处于导通状态，若是，则处理器控制所述智能笔上的红外收发电路向所述智能笔的书写纸区域发射红外光信号，并通过读取所述红外光的反射信号，来进一步的确定所述智能笔在书写纸上的书写痕迹。
当第二压力开关发出的触发信号的频率大于第一阈值的情况下，可以认 为用户是通过智能笔进行正常的书写操作，此时可以控制智能笔上的红外收发电路向书写纸上的书写区域发射红外光，并通过读取红外光的反射光线，进一步的确定用户在书写纸上的书写痕迹。
通过上述实施例中的方案，能够对智能笔的电源进行了管理，得到了节约电能的目的。
参见图2，根据本公开实施例的一种具体实现方式，所述方法还包括：
S201，所述处理器进一步判断预设时间内第二压力是否开关处于断开状态。
S202，若是，则控制所述处理器进入休眠状态。
通过该实施例的方式，能够进一步的对处理器的能量消耗进行控制，从而进一步达到节能的目的。
根据本公开实施例的一种具体实现方式，所述在智能笔的末端设置第一压力开关，包括：在所述智能笔的末端设置与所述第一压力开关配套连接的可移动部件，所述可移动部件具有预设的移动行程，在所述第一压力开关处于电连接状态时，所述可移动部件在第一移动行程处，在所述第一压力开关处于断开状态时，所述可移动部件在第二移动行程处。通过这种设置可移动行程的方式，用于可以通过例如按压的方式，对第一开关执行开关操作。
参见图3，根据本公开实施例的一种具体实现方式，所述在智能笔的末端设置第一压力开关，还包括：
S301，将所述第一压力开关的第一端与所述智能笔驱动电压的供应点进行连接；
S302，将所述第一压力开关的第二端与所述第二压力开关的第一端进行连接。
通过这种设置方式，可以在第一压力开关处于电连接的状态下，及时的给第二压力开关进行供电操作。
根据本公开实施例的一种具体实现方式，所述在所述智能笔的笔芯尾部设置第二压力开关，包括：将所述第二压力开关的第二端与处理器上的第二 处理器接口进行连接，以便于所述处理器基于所述第二处理器接口来检测所述触发信号。
参见图4及图6，根据本公开实施例的一种具体实现方式，所述方法还包括：
S401，在所述红外收发电路发射红外光信号之后，可以采用摄像采集模块采集所述笔尖在所述书写区域形成的轨迹，形成轨迹信息，所述处理器通过预设的数据处理算法，所述轨迹信息进行数据转换处理，形成轨迹数字信号；
S402，存储所述处理器形成的轨迹数字信号；
S403，在所述智能笔与目标终端通信连接成功之后，将所述存储器中存储的轨迹数字信号发送给所述目标终端。
根据本公开实施例的一种具体实现方式，所述方法还包括：
设置电源管理电路，所述电源管理电路包括第一端口、第二端口、第三端口及第四端口，其中第一端口、第二端口、第三端口及第四端口可以通过集成为接口端子的方式存在，从而用户通过接口端子便可以直接对各个端口进行操作。该接口端子可以按照各种标准的接口来进行操作，例如，可以采用USB端口的协议标准来设置该接口端子，并以此设置第一端口、第二端口、第三端口及第四端口。
所述第一端口用于提供高电平电源信号，所述第一端口依次与第一电阻和第一电感连接，形成高电平供应点；所述第二端口和所述第三端口用于提供差分连接信息通道；所述第四端口为提供地连接信号，所述第四端口通过第二电感与地连接。
根据本公开实施例的一种具体实现方式，所述高电平供电点与并联的第一电容和第二电容的第一端连接，所述第一电容和所述第二电容的第二端与地连接；所述第二端口与第二电阻的第一端连接，所述第二电阻的第二端形成第一差分信号连接点；所述第三端口与第三电阻的第一端连接，所述第三电阻的第二端形成第二差分信号连接点；所述第一电阻的第一端与第一静电 放电二极管的第一端连接，所述第一静电放电二极管的第二端与地连接；所述第二电阻的第一端与第二静电放电二极管的第一端连接，所述第二静电放电二极管的第二端与地连接；所述第三电阻的第一端与第三静电放电二极管的第一端连接，所述第三静电放电二极管的第二端与地连接；所述第一端口、所述第二端口、所述第三端口及所述第四端口以USB接口的形式平行设置。通过该设置方式，能够保证接口端子在提供电源供应的过程中，提供稳定的电压输出，不容易受到智能笔上面不同部件电压波动的影响。
根据本公开实施例的一种具体实现方式，所述方法包括：在蓝牙模块中设置第四电阻、蓝牙芯片、第三电容、第四电容和发光二极管；所述蓝牙芯片包括第一蓝牙接口、第二蓝牙接口和第三蓝牙接口，所述第一蓝牙接口与所述第四电阻的第二端连接，用于接收电源信号；第三电容和第四电容，所述第三电容和第四电容的第一端与所述第四电阻的第二端连接，所述第三电容和第四电容的第二端与地连接；所述发光二极管的第一端与所述蓝牙芯片的第二蓝牙接口连接，所述发光二极管的第二端与所述处理器的第三处理器接口连接，所述第二蓝牙接口和所述第三处理器接口用于进行蓝牙芯片和处理器之间的数据传输，所述发光二极管通过闪光的形式展示数据传输的频率。通过这种方式，能够给蓝牙芯片提供稳定的电源输入，保证了蓝牙芯片信号发射的稳定性。
根据本公开实施例的一种具体实现方式，所述蓝牙模块还包括：
第三电感，所述第三电感的第一端与所述蓝牙芯片的第三蓝牙接口连接第五电容，所述第五电容的第一端与所述第三电感的第二端连接，蓝牙发射天线，所述蓝牙发射天线与所述第五电容的第二端连接，第四电感，所述第四电感的第一端与所述第三电感的第二端连接，所述第四电感的第二端与地连接。通过这种方式，能够给蓝牙模块提供稳定的发射线路，保证了智能笔书写轨迹能够及时的发送出去。
根据本公开实施例的一种具体实现方式，所述红外收发电路包括红外发射模块和红外采集模块；所述红外发射模块包括串联的红外二极管和第七电阻，所述红外二极管的第一端与第二开关三极管的集电极连接，所述红外二极管的第二端与所述第七电阻的第一端连接，所述第七电阻的第二端接地； 所述红外采集模块包括第五电阻、第六电阻、红外感应三极管和第六电容；所述第五电阻的第一端与所述开关三极管的集电极连接，所述第五电阻的第二端与所述红外感应三极管的发射极连接；所述第六电阻的第一端与所述第五电阻的第二端连接，所述第六电阻的第二端与所述红外感应三极管的基端连接；所述第六电容的第一端与所述红外感应三极管的基端连接，所述第六电容的第二端与处理器第四接口连接。
作为另外一种方式，本公开实施例中还包括第一压力开关和第二压力开关，其中，第一压力开关直接和处理器第五接口连接，通过处理器第五接口，可以实时的监控第一压力开关的开合状态。第二压力开关依次与运算放大器、第九电阻和第三开关三级管连接。其中，运算放大器的反相输入端与第三开关三极管的基端连接，并通过第八电阻接地。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。
工业实用性
通过本申请的方案，能够基于智能笔的不同状态对智能笔进行节能操作。

Claims (10)

  1. 一种智能笔节能方法，其特征在于，包括：
    在智能笔的末端设置第一压力开关，所述第一压力快关能够往复循环执行开关操作，所述压力开关的第一端与驱动电压连接；
    在所述智能笔的笔芯尾部设置第二压力开关，当笔尖在书写纸上书写时的压力超过预设阈值后，所述第二压力开关生成触发信号；
    将所述智能笔处理器的第一处理器接口与所述第一压力开关的第二端连接，当所述第一压力开关处于电连接状态时，所述处理器在所述驱动电压的驱动下启动自检流程；
    在所述处理器完成自检流程之后，所述处理器进一步判断所述第二压力开关是否处于导通状态，若是，则处理器控制所述智能笔上的红外收发电路向所述智能笔的书写纸区域发射红外光信号，并通过读取所述红外光的反射信号，来进一步的确定所述智能笔在书写纸上的书写痕迹。
  2. 根据权利要求1所述的智能笔节能方法，其特征在于，所述方法还包括：
    所述处理器进一步判断预设时间内第二压力是否开关处于断开状态；
    若是，则控制所述处理器进入休眠状态。
  3. 根据权利要求1所述的智能笔节能方法，其特征在于，所述在智能笔的末端设置第一压力开关，包括：
    在所述智能笔的末端设置与所述第一压力开关配套连接的可移动部件，所述可移动部件具有预设的移动行程，在所述第一压力开关处于电连接状态时，所述可移动部件在第一移动行程处，在所述第一压力开关处于断开状态时，所述可移动部件在第二移动行程处。
  4. 根据权利要求3所述的智能笔节能方法，其特征在于，所述在智能笔的末端设置第一压力开关，还包括：
    将所述第一压力开关的第一端与所述智能笔驱动电压的供应点进行连接；
    将所述第一压力开关的第二端与所述第二压力开关的第一端进行连接。
  5. 根据权利要求2所述的智能笔节能方法，其特征在于，所述在所述智能笔的笔芯尾部设置第二压力开关，包括：
    将所述第二压力开关的第二端与处理器上的第二处理器接口进行连接，以便于所述处理器基于所述第二处理器接口来检测所述触发信号。
  6. 根据权利要求5所述的智能笔节能方法，其特征在于，所述方法还包括：
    在所述红外收发电路发射红外光信号之后，采集所述笔尖在所述书写区域形成的轨迹，形成轨迹信息，所述处理器通过预设的数据处理算法，所述轨迹信息进行数据转换处理，形成轨迹数字信号；
    存储所述处理器形成的轨迹数字信号；
    在所述智能笔与目标终端通信连接成功之后，将所述存储器中存储的轨迹数字信号发送给所述目标终端。
  7. 根据权利要求6所述的智能笔节能方法，其特征在于，所述方法还包括：
    设置电源管理电路，所述电源管理电路包括第一端口、第二端口、第三端口及第四端口；
    所述第一端口用于提供高电平电源信号，所述第一端口依次与第一电阻和第一电感连接，形成高电平供应点；
    所述第二端口和所述第三端口用于提供差分连接信息通道；
    所述第四端口为提供地连接信号，所述第四端口通过第二电感与地连接。
  8. 根据权利要求7所述的智能笔节能方法，其特征在于：
    所述高电平供电点与并联的第一电容和第二电容的第一端连接，所述第一电容和所述第二电容的第二端与地连接；
    所述第二端口与第二电阻的第一端连接，所述第二电阻的第二端形成第一差分信号连接点；
    所述第三端口与第三电阻的第一端连接，所述第三电阻的第二端形成第二差分信号连接点；
    所述第一电阻的第一端与第一静电放电二极管的第一端连接，所述第一静电放电二极管的第二端与地连接；
    所述第二电阻的第一端与第二静电放电二极管的第一端连接，所述第二静电放电二极管的第二端与地连接；
    所述第三电阻的第一端与第三静电放电二极管的第一端连接，所述第三静电放电二极管的第二端与地连接；
    所述第一端口、所述第二端口、所述第三端口及所述第四端口以USB接口的形式平行设置。
  9. 根据权利要求8所述的智能笔节能方法，其特征在于，所述方法包括：
    在蓝牙模块中设置第四电阻、蓝牙芯片、第三电容、第四电容和发光二极管；
    所述蓝牙芯片包括第一蓝牙接口、第二蓝牙接口和第三蓝牙接口，所述第一蓝牙接口与所述第四电阻的第二端连接，用于接收电源信号；
    第三电容和第四电容，所述第三电容和第四电容的第一端与所述第四电阻的第二端连接，所述第三电容和第四电容的第二端与地连接；
    所述发光二极管的第一端与所述蓝牙芯片的第二蓝牙接口连接，所述发光二极管的第二端与所述处理器的第三处理器接口连接，所述第二蓝牙接口和所述第三处理器接口用于进行蓝牙芯片和处理器之间的数据传输，所述发光二极管通过闪光的形式展示数据传输的频率。
  10. 根据权利要求9所述的智能笔节能方法，其特征在于，所述蓝牙模块还包括：
    第三电感，所述第三电感的第一端与所述蓝牙芯片的第三蓝牙接口连接；
    第五电容，所述第五电容的第一端与所述第三电感的第二端连接；
    蓝牙发射天线，所述蓝牙发射天线与所述第五电容的第二端连接；
    第四电感，所述第四电感的第一端与所述第三电感的第二端连接，所述第四电感的第二端与地连接。
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Publication number Priority date Publication date Assignee Title
CN111796699B (zh) * 2020-07-17 2021-09-21 深圳市鹰硕教育服务有限公司 智能笔
CN112477472A (zh) * 2020-12-04 2021-03-12 北京万维智能技术有限公司 一种智能笔消除笔芯纵向活动量的方法
CN116229472B (zh) * 2023-05-11 2023-08-01 深圳棒棒帮科技有限公司 一种智能笔、书写信息采集系统及批改处理系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104615305A (zh) * 2015-02-07 2015-05-13 文成县刀锋科技有限公司 一种儿童电子绘画系统
CN104679293A (zh) * 2015-03-02 2015-06-03 深圳中电数码显示有限公司 一种多功能智能书写笔
CN104932717A (zh) * 2015-05-24 2015-09-23 田雪松 点阵数码笔
CN106534933A (zh) * 2016-11-23 2017-03-22 广州视源电子科技股份有限公司 交互设备、模式选择方法及系统
WO2018229662A1 (en) * 2017-06-16 2018-12-20 Ghahramani Barandagh Alireza Smart pen enhancing the pen holding skill of children

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201859401U (zh) * 2010-10-21 2011-06-08 广州视源电子科技有限公司 光学触控笔
WO2016122605A1 (en) * 2015-01-30 2016-08-04 Hewlett-Packard Development Company, L.P. Digital pen
CN106383600A (zh) * 2016-09-13 2017-02-08 合肥京东方光电科技有限公司 一种触摸笔、触控输入系统及其控制方法
CN107943327B (zh) * 2017-11-20 2023-07-25 广东工业大学 一种智能直写笔

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104615305A (zh) * 2015-02-07 2015-05-13 文成县刀锋科技有限公司 一种儿童电子绘画系统
CN104679293A (zh) * 2015-03-02 2015-06-03 深圳中电数码显示有限公司 一种多功能智能书写笔
CN104932717A (zh) * 2015-05-24 2015-09-23 田雪松 点阵数码笔
CN106534933A (zh) * 2016-11-23 2017-03-22 广州视源电子科技股份有限公司 交互设备、模式选择方法及系统
WO2018229662A1 (en) * 2017-06-16 2018-12-20 Ghahramani Barandagh Alireza Smart pen enhancing the pen holding skill of children

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Usb interface circuit diagram (DS2490S/PDIUSBD12)", ELECFANS.COM, ELECFANS, CN, 2 April 2018 (2018-04-02), CN, pages 1 - 2, XP009532898, Retrieved from the Internet <URL:http://m.elecfans.com/article/656109.html> *

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