High-speed high-precision dot-matrix handwriting pen
By employing the Hi2821V100 chip and a press-block-spring structure in the dot matrix stylus, the limitations of data transmission bandwidth and the fragility of the pen tip are solved, achieving high-speed and high-precision data transmission and pen tip protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN DISCOVERY DREAM ELECTRONICS SCI & TECH
- Filing Date
- 2025-03-07
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional dot matrix styluses suffer from bandwidth limitations during data transmission, leading to data loss, and the pen tip is easily damaged by drops.
The pen uses the Hi2821V100 chip to achieve high-speed and high-precision data transmission, and the pen tip is protected by a press block and spring structure to ensure that the pen tip retracts into the pen barrel to avoid damage in the event of a drop.
It achieves stable and reliable data transmission and pen tip protection, thereby improving teaching quality and extending the pen's lifespan.
Smart Images
Figure CN224383664U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dot matrix pen technology, specifically relating to a high-speed, high-precision dot matrix handwriting pen. Background Technology
[0002] As a new type of intelligent educational tool, the dot matrix pen can meet the writing needs of students and teachers in different scenarios, enabling real-time data recording and analysis. Dot matrix pen technology allows for real-time synchronization and sharing of written content, facilitating interactive teaching. Through the dot matrix pen, teachers can monitor students' writing progress in real time, increasing classroom interaction and improving teaching effectiveness.
[0003] In terms of data, due to the bandwidth limitations of traditional Bluetooth communication, data loss may occur under high concurrency conditions.
[0004] In terms of structure, existing dot-matrix styluses cannot effectively protect the pen tip in practical applications, posing a risk of damage due to accidental drops. Utility Model Content
[0005] In view of the problems mentioned above in the background technology, the purpose of this utility model is to provide a high-speed and high-precision dot matrix stylus.
[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0007] A high-speed, high-precision dot matrix stylus includes a pen barrel, a pen tail and a pen cap adapted to the pen barrel. The pen barrel has a battery slot inside, in which a battery is installed. A press-type start button is connected to the end of the battery slot and protrudes from the pen barrel. A PCB board is connected to the front end of the battery slot. A StarFlash HiV chip is installed on the PCB board. A pressure sensor and a high-speed camera are electrically connected to the PCB board.
[0008] The pen barrel is slidably mounted with a pen tip. The pen barrel is equipped with a mounting groove at the tail end of the pen tip. The mounting groove has an opening with a size larger than that of the pen tip. A pressing block is slidably mounted inside the mounting groove. The pressing block has an inclined surface. A spring connects the pressing block and the mounting groove. The pressure sensor is installed at the contact end between the pressing block and the pen tip.
[0009] Furthermore, the pen barrel is equipped with an indicator light connected to the PCB board. This design allows for direct identification of the current state of the dot matrix stylus.
[0010] Furthermore, the pen is equipped with a wireless charging head that is compatible with the battery. This design enables wireless charging and extends the battery's lifespan.
[0011] Furthermore, the pen barrel has a locking mechanism inside, which limits the movement of the pen tip and ensures that the pen tip can cooperate with the pressure sensor.
[0012] Furthermore, the pressure sensor is detachably mounted on the pressing block, and the outer side of the mounting groove is provided with a mounting port that matches the pressure sensor. With this design, the mounting groove can be inverted according to usage requirements, the pressing block can be discarded, and then the pressure sensor can be directly mounted on the mounting groove to achieve cooperation with the pen tip.
[0013] The beneficial effects of using this utility model are as follows:
[0014] This utility model adopts the Hi2821V100 chip technology to achieve high speed and high precision, while realizing stable and reliable data transmission, improving teaching quality, promoting personalized learning, and making a positive contribution to the development of education.
[0015] The structural design of this utility model allows the pen to be used only when the pressing block is pressed down. When the pen is dropped, i.e. when the pen barrel slips out of your hand, the pressing block will rise under the effect of the spring, losing its ability to resist the pen tip. Then, when the pen tip makes contact, it can retract into the pen barrel, forming a protection for the pen tip, making it less prone to damage and ensuring its service life. Attached Figure Description
[0016] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0017] Figure 1 This is a structural schematic diagram of an embodiment of a high-speed, high-precision dot matrix stylus of the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of a high-speed, high-precision dot matrix stylus without a pen cap according to an embodiment of this utility model.
[0019] Figure 3 This is a schematic diagram of the internal structure of an embodiment of a high-speed, high-precision dot-matrix stylus of this utility model. Figure 1 ;
[0020] Figure 4 This is a schematic diagram of the internal structure of an embodiment of a high-speed, high-precision dot-matrix stylus of this utility model. Figure 2 ;
[0021] Figure 5 This is a cross-sectional structural diagram of an embodiment of a high-speed, high-precision dot matrix stylus of the present invention.
[0022] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;
[0023] The symbols for the main components are explained below:
[0024] 1. Pen barrel; 2. Pen tail; 3. Pen cap; 4. Battery slot; 5. Battery; 6. Press-type start button; 7. PCB board; 8. Pressure sensor; 9. High-speed camera; 10. Pen tip; 11. Mounting slot; 12. Opening; 13. Pressing block; 14. Angled surface; 15. Spring; 16. Indicator light; 17. Wireless charging head; 18. Bayonet. Detailed Implementation
[0025] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0026] like Figures 1-6 As shown, this utility model discloses a high-speed, high-precision dot matrix stylus, including a pen body 1, a pen tail 2 and a pen cap 3 adapted to the pen body 1. The pen body 1 has a battery slot 4 inside, and a battery 5 is installed in the battery slot 4. A press-type start button 6 is connected to the end of the battery slot 4. The press-type start button 6 protrudes from the pen body 1. A PCB board 7 is connected to the front end of the battery slot 4. A StarFlash Hi2821V100 chip is installed on the PCB board 7. A pressure sensor 8 and a high-speed camera 9 are electrically connected to the PCB board 7.
[0027] The pen barrel 1 is slidably mounted with a pen tip 10. The pen barrel 1 is mounted with a mounting groove 11 at the tail end of the pen tip 10. The mounting groove 11 has an opening 12 with a size larger than that of the pen tip 10. A pressing block 13 is slidably mounted inside the mounting groove 11. The pressing block 13 has an inclined surface 14. A spring 15 is connected between the pressing block 13 and the mounting groove 11. A pressure sensor 8 is mounted at the contact end between the pressing block 13 and the pen tip 10.
[0028] In this implementation case, when using a high-speed, high-precision dot matrix stylus, the Hi2821V100 chip is selected. The Hi2821V100 chip is a highly integrated 2.4GHz BLE / SLE SoC solution, integrating high-performance, ultra-low-power BLE5.4, SLE1.0, and RF circuitry. The RF circuitry includes a power amplifier (PA), a low-noise amplifier, an antenna, and power management modules. The Hi2821V100 SLE supports three bandwidths: 1M, 2M, and 4M, with a maximum physical layer speed of 8Mbps. The Hi2821V100 integrates a high-performance 32-bit microprocessor (MCU), built-in large-capacity SRAM and Flash memory, and supports running programs on the Flash memory. It also supports a hardware security engine and rich peripheral interfaces. These peripheral interfaces include USB 2.0 HighSpeed, SPI, UART, I2C, PWM, GPIO, PDM, and I2S / PCM, supporting 8-channel 12-bit 4Msps SAR ADC and 1-channel 16-bit 1Msps SAR ADC for high performance.
[0029] During use, when the pen tip 10 is subjected to force, the pressure sensor 8 is triggered, activating the high-speed camera 9, which takes pictures of the dot matrix that the pen tip 10 passes through at a rate of 100 frames per second. The efficient and accurate OID code recognition algorithm identifies the code value and transmits information such as dot matrix coordinates, handwriting sequence, pressure data, and movement speed to the outside through the star flash module, achieving the purpose of high speed and high precision.
[0030] When the pressing block 13 is in the pressed state, its end can contact the pen tip 10. At the same time, the setting of the inclined surface 14 can guide the tail end of the pen tip 10, so that the pen tip 10 is pushed out of the pen barrel 1 by force, thereby realizing the operation. Only when the pressing block 13 is in the pressed state can the pressure sensor 8 on the pressing block 13 cooperate with the pen tip 10. When the pen barrel 1 is dropped or not held, the pressing block 13 loses the pressing force. Under the effect of the spring 15, the pressing block 13 moves to the outside of the pen barrel 1, so that the tail of the pen tip 10 is facing the inclined surface 14. In this state, when the tip of the pen tip 10 is subjected to force, the pen tip 10 will move towards the mounting groove 11. In extreme cases, it can be completely retracted into the pen barrel 1, protecting the pen tip 10 from collision damage and ensuring its service life.
[0031] The preferred pen body 1 is equipped with an indicator light 16 connected to the PCB board 7. This design can directly identify the current state of the dot matrix stylus. In fact, the position and display state of the indicator light 16 can also be considered according to the specific situation.
[0032] The preferred pen tail 2 is equipped with a wireless charging head 17 that is compatible with the battery 5. This design enables wireless charging and extends the battery 5's battery life. In fact, the charging method for the battery 5 can also be considered depending on the specific situation, including but not limited to using a USB interface.
[0033] Preferably, the pen barrel 1 has a bayonet 18 inside. This design limits the movement of the pen tip 10, ensuring that the pen tip 10 can cooperate with the pressure sensor 8. In fact, measures to limit the movement of the pen tip 10 can also be considered depending on the specific situation.
[0034] The preferred pressure sensor 8 is detachably mounted on the pressing block 13. The outer side of the mounting groove 11 is provided with a mounting port that matches the pressure sensor 8. With this design, the mounting groove 11 can be inverted according to the usage requirements, discarding the pressing block 13, and then the pressure sensor 8 can be directly mounted on the mounting groove 11 to achieve cooperation with the pen tip 10. In fact, the installation position of the pressure sensor 8 and the functions of the dot matrix stylus can also be considered according to the specific situation. When the mounting groove 11 is installed inverted, the protection of the pen tip 10 will be lost. However, in contrast, it can be used without continuous pressing of the pressing block 13 during use.
[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A high-speed, high-precision dot-matrix stylus, comprising a pen barrel (1), a pen tail (2) adapted to the pen barrel (1), and a pen cap (3), characterized in that: The pen barrel (1) has a battery slot (4) inside, and a battery (5) is installed in the battery slot (4). A push-button start button (6) is connected to the end of the battery slot (4). The push-button start button (6) protrudes from the pen barrel (1). A PCB board (7) is connected to the front end of the battery slot (4). A StarSpark Hi2821V100 chip is installed on the PCB board (7). A pressure sensor (8) and a high-speed camera (9) are electrically connected to the PCB board (7). The pen barrel (1) is slidably mounted with a pen tip (10). The pen barrel (1) is mounted with a mounting groove (11) at the tail end of the pen tip (10). The mounting groove (11) has an opening (12) with a size larger than that of the pen tip (10). A pressing block (13) is slidably mounted inside the mounting groove (11). The pressing block (13) has an inclined surface (14). A spring (15) is connected between the pressing block (13) and the mounting groove (11). The pressure sensor (8) is mounted at the contact end between the pressing block (13) and the pen tip (10).
2. The high-speed, high-precision dot-matrix stylus according to claim 1, characterized in that: The pen (1) is equipped with an indicator light (16) that is connected to the PCB board (7).
3. The high-speed, high-precision dot-matrix stylus according to claim 2, characterized in that: The pen tail (2) is fitted with a wireless charging head (17) that is compatible with the battery (5).
4. A high-speed, high-precision dot-matrix stylus according to claim 3, characterized in that: The pen barrel (1) has a locking slot (18) inside.
5. A high-speed, high-precision dot-matrix stylus according to claim 4, characterized in that: The pressure sensor (8) is detachably installed on the pressing block (13), and the mounting groove (11) has a mounting port on the outside that matches the pressure sensor (8).