CN212906231U - Bluetooth driving circuit of intelligent pen - Google Patents
Bluetooth driving circuit of intelligent pen Download PDFInfo
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- CN212906231U CN212906231U CN202021310118.1U CN202021310118U CN212906231U CN 212906231 U CN212906231 U CN 212906231U CN 202021310118 U CN202021310118 U CN 202021310118U CN 212906231 U CN212906231 U CN 212906231U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 42
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 230000004913 activation Effects 0.000 claims description 14
- 230000009466 transformation Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- General Physics & Mathematics (AREA)
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Abstract
The embodiment of the utility model discloses intelligence pen bluetooth drive circuit belongs to intelligence pen technical field, include: a power driving module; a pressure sensor; a processor comprising a first processor interface, a second processor interface, and a third processor interface; a switching transistor having a base end coupled to the third processor interface to facilitate a switching operation based on the drive signal; and the Bluetooth module is connected with the collector of the switch triode and used for driving the Bluetooth module to transmit the signal sent to the Bluetooth module by the processor through the transmitting antenna after the switch triode generates a closing operation. Through this scheme, can open the bluetooth information transmission operation fast based on pressure signal.
Description
Technical Field
The utility model relates to an intelligence pen technical field especially relates to an intelligence bluetooth drive circuit.
Background
Writing is a wonderful experience, writing on paper always has an attractive force, and people always desire to keep handwritten notes even in the information age. Especially in the aspect of intelligent education, when black technologies such as electromagnetic writing recognition, infrared dot matrix recognition and ultrasonic recognition are integrated into writing, various intelligent writing pens are provided.
The intelligent pen can print a layer of invisible dot matrix pattern on common paper as one type of the intelligent pen, the high-speed camera at the front end of the digital pen captures the motion track of a pen point at any time, meanwhile, the pressure sensor transmits pressure data back to the data processor, and finally, information is transmitted outwards through a Bluetooth or a USB line. The handwriting recording process and the writing process are synchronized. When writing, the dot matrix digital pen stores the characters or pictures written on the paper in the computer in the form of bitmap to form a document.
The intelligent pen is at the in-process of writing, needs the real-time trace signal of writing that gathers the intelligent pen to send away through wireless mode, and to near field transmission, bluetooth communication has low-power consumption, the stable advantage of signal transmission, for this reason, needs a brand-new simple structure, easy maintenance and the intelligent pen bluetooth drive circuit solution that work efficiency is high urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides an intelligence bluetooth drive circuit for through the mode of hardware architecture and hardware architecture combination, provide a simple structure, easy maintenance and the high intelligent bluetooth drive circuit solution of work efficiency, this intelligence bluetooth drive circuit includes:
the embodiment of the utility model provides an intelligence bluetooth drive circuit, include:
the power supply driving module is used for providing power supply for the intelligent pen and generating a power supply signal;
a pressure sensor generating a smart pen activation signal after sensing a pressing action of a smart pen;
the processor comprises a first processor interface, a second processor interface and a third processor interface, wherein the first processor interface is used for receiving a power supply signal, the second processor interface is connected with the pressure sensor and used for receiving an activation signal generated by the smart pen, and the third processor interface is used for generating a Bluetooth driving signal after the processor receives the activation signal;
a switching transistor having a base end coupled to the third processor interface to facilitate a switching operation based on the drive signal;
and the Bluetooth module is connected with the collector of the switch triode and used for driving the Bluetooth module to transmit the signal sent to the Bluetooth module by the processor through the transmitting antenna after the switch triode generates a closing operation.
According to the utility model discloses a concrete implementation mode, bluetooth module includes:
the first end of the second resistor is connected with the collector of the switching triode;
the Bluetooth chip comprises a first Bluetooth interface, a second Bluetooth interface and a third Bluetooth interface, wherein the first Bluetooth interface is connected with the second end of the second resistor and used for receiving a power supply signal.
According to the utility model discloses a concrete implementation mode, bluetooth module still includes:
and first ends of the fifth capacitor and the sixth capacitor are connected with the second end of the second resistor, and second ends of the fifth capacitor and the sixth capacitor are connected with the ground.
According to the utility model discloses a concrete implementation mode, bluetooth module still includes:
the first end of the light-emitting diode is connected with the second Bluetooth interface of the Bluetooth chip, the second end of the light-emitting diode is connected with the fourth processor interface of the processor, the second Bluetooth interface and the fourth processor interface are used for data transmission between the Bluetooth chip and the processor, and the light-emitting diode displays the frequency of the data transmission in a flashing mode.
According to the utility model discloses a concrete implementation mode, bluetooth module still includes:
a first end of the third inductor is connected with a third Bluetooth interface of the Bluetooth chip;
a first end of the seventh capacitor is connected with the second end of the third inductor;
the Bluetooth transmitting antenna is connected with the second end of the seventh capacitor;
a first end of the fourth inductor is connected with a second end of the third inductor, and a second end of the fourth inductor is connected with ground.
According to the utility model discloses a concrete implementation mode, intelligence bluetooth drive circuit still includes:
the interface terminal comprises a first port and a second port, the first port is used for providing a high-level power signal, the first port is sequentially connected with a first resistor and a first inductor to form a high-level supply point, the second port provides a ground connection signal, and the second port is connected with the ground through a second inductor.
According to the utility model discloses a concrete implementation mode, intelligence bluetooth drive circuit still includes:
and the voltage transformation conversion chip is used for carrying out level conversion on the high-level power supply signal at the high-level supply point to form conversion voltage.
According to the utility model discloses a concrete mode of realization, the output of vary voltage conversion chip with the projecting pole of switch triode is connected.
According to the utility model discloses a concrete mode of realization, the input of voltage conversion chip is connected with the first end of first electric capacity and second electric capacity, the second end ground connection of first electric capacity and second electric capacity.
According to a specific implementation manner of the embodiment of the present invention, the output end of the voltage conversion chip is connected to the first ends of the third capacitor and the fourth capacitor, and the second ends of the third capacitor and the fourth capacitor are grounded;
the first end of the first resistor is connected with the first end of a first electrostatic discharge diode, and the second end of the first electrostatic discharge diode is connected with the ground.
The embodiment of the utility model provides an intelligent pen bluetooth drive circuit, including power drive module, power drive module provides power supply for intelligent pen, generates power signal; a pressure sensor generating a smart pen activation signal after sensing a pressing action of a smart pen; the processor comprises a first processor interface, a second processor interface and a third processor interface, wherein the first processor interface is used for receiving a power supply signal, the second processor interface is connected with the pressure sensor and used for receiving an activation signal generated by the smart pen, and the third processor interface is used for generating a Bluetooth driving signal after the processor receives the activation signal; a switching transistor having a base end coupled to the third processor interface to facilitate a switching operation based on the drive signal; and the Bluetooth module is connected with the collector of the switch triode and used for driving the Bluetooth module to transmit the signal sent to the Bluetooth module by the processor through the transmitting antenna after the switch triode generates a closing operation. Through this disclosed scheme, can carry out signal communication to the writing orbit of intelligent pen through the mode of bluetooth communication.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bluetooth driving circuit for an intelligent pen according to an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides an assembly structure schematic diagram of bluetooth module on intelligent pen.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the embodiment of the utility model provides an intelligence pen bluetooth drive circuit, including power drive module, pressure sensor, treater, switch triode and bluetooth module.
The power driving module includes a plurality of power components, for example, may include an interface terminal and a voltage conversion chip, and associated resistors, capacitors, inductors, and the like, and provides power supply for the smart pen to generate a power signal.
A pressure sensor may be provided at the tip of the smart pen, which generates a smart pen activation signal after sensing the pressing action of the smart pen, by which other working components on the smart pen can be activated, for example, a processor may be activated by the activation signal, and after the activation, the processor may control the switching transistor Q1 and the bluetooth module to work.
The processor is used for processing signals on the smart pen, and the processor may comprise a plurality of interfaces, for example, the processor comprises a first processor interface a1, a second processor interface a2 and a third processor interface a3, the first processor interface a1 is used for receiving power signals, the second processor interface a2 is connected with the pressure sensor and is used for receiving activation signals generated by the smart pen, and the third processor interface a3 is used for generating bluetooth driving signals after the processor receives the activation signals. Besides the above interfaces, other types of interfaces may be provided according to actual needs.
A switching transistor Q1 is used to supply a driving power to the bluetooth module, and a base terminal of the switching transistor Q1 is connected to the third processor interface a3 so as to generate a switching operation based on the driving signal.
Bluetooth module includes the bluetooth chip and the relevant resistance, electric capacity, inductance and the antenna etc. of being connected with the bluetooth chip, bluetooth module with switch triode Q1's collecting electrode is connected, is used for after switch triode Q1 produces the closed operation, drive bluetooth module sends the signal that the treater sent for bluetooth module and passes through the transmitting antenna and launch away.
According to the utility model discloses a concrete implementation mode, bluetooth module includes:
a second resistor R2, a first end of the second resistor R2 being connected to the collector of the switching transistor Q1;
the Bluetooth chip comprises a first Bluetooth interface b1, a second Bluetooth interface b2 and a third Bluetooth interface b3, wherein the first Bluetooth interface b1 is connected with the second end of the second resistor R2 and used for receiving a power supply signal.
According to the utility model discloses a concrete implementation mode, bluetooth module still includes:
a fifth capacitor C5 and a sixth capacitor C6, wherein first ends of the fifth capacitor C5 and the sixth capacitor C6 are connected with a second end of the second resistor R2, and second ends of the fifth capacitor C5 and the sixth capacitor C6 are connected with the ground.
According to the utility model discloses a concrete implementation mode, bluetooth module still includes:
the light emitting diode D2, a first end of the light emitting diode D2 is connected to the second bluetooth interface b2 of the bluetooth chip, a second end of the light emitting diode D2 is connected to the fourth processor interface a4 of the processor, the second bluetooth interface b2 and the fourth processor interface a4 are used for data transmission between the bluetooth chip and the processor, and the light emitting diode D2 shows a frequency of the data transmission in a form of flashing.
According to the utility model discloses a concrete implementation mode, bluetooth module still includes:
a third inductor L3, wherein a first end of the third inductor L3 is connected with a third Bluetooth interface b3 of the Bluetooth chip;
a seventh capacitor C7, a first end of the seventh capacitor C7 being connected to the second end of the third inductor L3;
the Bluetooth transmitting antenna is connected with the second end of the seventh capacitor C7;
a fourth inductor L4, a first terminal of the fourth inductor L4 is connected to the second terminal of the third inductor L3, and a second terminal of the fourth inductor L4 is connected to ground.
According to the utility model discloses a concrete implementation mode, intelligence bluetooth drive circuit still includes:
the interface terminal comprises a first port and a second port, wherein the first port is used for providing a high-level power supply signal, the first port is sequentially connected with a first resistor R1 and a first inductor L1 to form a high-level supply point, the second port provides a ground connection signal, and the second port is connected with the ground through a second inductor L2.
According to the utility model discloses a concrete implementation mode, intelligence bluetooth drive circuit still includes:
and the voltage transformation conversion chip is used for carrying out level conversion on the high-level power supply signal at the high-level supply point to form conversion voltage.
According to the utility model discloses a concrete mode of realization, the output of vary voltage conversion chip with switching triode Q1's projecting pole is connected.
According to the embodiment of the present invention, the input terminal of the voltage conversion chip is connected to the first terminals of the first capacitor C1 and the second capacitor C2, and the second terminals of the first capacitor C1 and the second capacitor C2 are grounded.
According to a specific implementation manner of the embodiment of the present invention, the output end of the voltage conversion chip is connected to the first ends of the third capacitor C3 and the fourth capacitor C4, and the second ends of the third capacitor C3 and the fourth capacitor C4 are grounded;
the first end of the first resistor R1 is connected to the first end of the first esd diode D1, and the second end of the first esd diode D1 is connected to ground.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a bluetooth drive circuit of smart pen which characterized in that includes:
the power supply driving module is used for providing power supply for the intelligent pen and generating a power supply signal;
a pressure sensor generating a smart pen activation signal after sensing a pressing action of a smart pen;
the processor comprises a first processor interface, a second processor interface and a third processor interface, wherein the first processor interface is used for receiving a power supply signal, the second processor interface is connected with the pressure sensor and used for receiving an activation signal generated by the smart pen, and the third processor interface is used for generating a Bluetooth driving signal after the processor receives the activation signal;
a switching transistor having a base end coupled to the third processor interface to facilitate a switching operation based on the drive signal;
and the Bluetooth module is connected with the collector of the switch triode and used for driving the Bluetooth module to transmit the signal sent to the Bluetooth module by the processor through the transmitting antenna after the switch triode generates a closing operation.
2. The smart pen bluetooth driver circuit of claim 1, wherein the bluetooth module comprises:
the first end of the second resistor is connected with the collector of the switching triode;
the Bluetooth chip comprises a first Bluetooth interface, a second Bluetooth interface and a third Bluetooth interface, wherein the first Bluetooth interface is connected with the second end of the second resistor and used for receiving a power supply signal.
3. The smart pen bluetooth driver circuit of claim 2, wherein the bluetooth module further comprises:
and first ends of the fifth capacitor and the sixth capacitor are connected with the second end of the second resistor, and second ends of the fifth capacitor and the sixth capacitor are connected with the ground.
4. The smart pen bluetooth driver circuit of claim 3, wherein the bluetooth module further comprises:
the first end of the light-emitting diode is connected with the second Bluetooth interface of the Bluetooth chip, the second end of the light-emitting diode is connected with the fourth processor interface of the processor, the second Bluetooth interface and the fourth processor interface are used for data transmission between the Bluetooth chip and the processor, and the light-emitting diode displays the frequency of the data transmission in a flashing mode.
5. The smart pen bluetooth driver circuit of claim 4, wherein the bluetooth module further comprises:
a first end of the third inductor is connected with a third Bluetooth interface of the Bluetooth chip;
a first end of the seventh capacitor is connected with the second end of the third inductor;
the Bluetooth transmitting antenna is connected with the second end of the seventh capacitor;
a first end of the fourth inductor is connected with a second end of the third inductor, and a second end of the fourth inductor is connected with ground.
6. The smart pen bluetooth driver circuit according to claim 5, further comprising:
the interface terminal comprises a first port and a second port, the first port is used for providing a high-level power signal, the first port is sequentially connected with a first resistor and a first inductor to form a high-level supply point, the second port provides a ground connection signal, and the second port is connected with the ground through a second inductor.
7. The smart pen bluetooth driver circuit according to claim 6, further comprising:
and the voltage transformation conversion chip is used for carrying out level conversion on the high-level power supply signal at the high-level supply point to form conversion voltage.
8. The smart pen bluetooth driver circuit of claim 7, wherein:
the output end of the voltage transformation conversion chip is connected with the emitting electrode of the switching triode.
9. The bluetooth driver circuit for smart pens according to claim 8, characterized in that:
the input end of the voltage transformation conversion chip is connected with the first ends of the first capacitor and the second capacitor, and the second ends of the first capacitor and the second capacitor are grounded.
10. The bluetooth driving circuit for smart pens according to claim 9, characterized in that:
the output end of the voltage transformation conversion chip is connected with the first ends of a third capacitor and a fourth capacitor, and the second ends of the third capacitor and the fourth capacitor are grounded;
the first end of the first resistor is connected with the first end of a first electrostatic discharge diode, and the second end of the first electrostatic discharge diode is connected with the ground.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310118.1U CN212906231U (en) | 2020-07-07 | 2020-07-07 | Bluetooth driving circuit of intelligent pen |
| PCT/CN2020/110953 WO2022007139A1 (en) | 2020-07-07 | 2020-08-25 | Intelligent pen bluetooth driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021310118.1U CN212906231U (en) | 2020-07-07 | 2020-07-07 | Bluetooth driving circuit of intelligent pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212906231U true CN212906231U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021310118.1U Active CN212906231U (en) | 2020-07-07 | 2020-07-07 | Bluetooth driving circuit of intelligent pen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212906231U (en) |
| WO (1) | WO2022007139A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203178932U (en) * | 2013-04-24 | 2013-09-04 | 刘建生 | Wireless digital pen |
| CN203909815U (en) * | 2014-04-18 | 2014-10-29 | 广州健新自动化科技有限公司 | RFID label reading-writing device |
| CN104932717B (en) * | 2015-05-24 | 2018-04-17 | 田雪松 | dot matrix digital pen |
| CN205548572U (en) * | 2016-02-02 | 2016-09-07 | 成都麦杰康科技有限公司 | Hand loop |
| CN108449690B (en) * | 2018-04-08 | 2020-12-01 | 歌尔股份有限公司 | Step counting method, Bluetooth headset and electronic equipment |
| KR102681717B1 (en) * | 2018-12-28 | 2024-07-05 | 삼성전자주식회사 | Electronic device for performing communication with pen input device having a pluarlity of input buttons and method for controlling thereof |
-
2020
- 2020-07-07 CN CN202021310118.1U patent/CN212906231U/en active Active
- 2020-08-25 WO PCT/CN2020/110953 patent/WO2022007139A1/en active Application Filing
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| WO2022007139A1 (en) | 2022-01-13 |
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Effective date of registration: 20211129 Address after: Room 301, building D, Hongwei Industrial Zone, No.6 Liuxian 3rd road, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN EAGLESOUL TECHNOLOGY Co.,Ltd. Address before: 518000 202b, 2nd floor, building 1, Jianda Industrial Park, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen YINGSHUO Education Service Co., Ltd |