WO2021248692A1

WO2021248692A1 - Intelligent trajectory acquisition pen

Info

Publication number: WO2021248692A1
Application number: PCT/CN2020/110932
Authority: WO
Inventors: 卢启伟; 叶宗波; 彭祖明
Original assignee: 深圳市鹰硕教育服务有限公司
Priority date: 2020-06-08
Filing date: 2020-08-25
Publication date: 2021-12-16
Also published as: CN212515721U

Abstract

An intelligent trajectory acquisition pen, which relates to the technical field of intelligent pens, comprising: a pressure switch module, which is arranged on a pen tip part of the intelligent trajectory acquisition pen; an infrared light emitting circuit, which emits an infrared light signal to a writing region where the pen tip is in contact with a writing paper; a camera acquisition module, which acquires the trajectory formed by the pen tip in the writing region to form trajectory information; a MCU module, which performs data conversion processing on the trajectory information by means of a preset data processing algorithm to form a trajectory digital signal; a memory, which is used to store the trajectory digital signal formed by the MCU module; and a Bluetooth communication circuit, wherein after the intelligent trajectory acquisition pen and a target terminal are successfully communicatively connected, the Bluetooth communication circuit sends the trajectory digital signal stored in the memory to the target terminal. By means of the solution, a trajectory acquisition operation may be performed on the basis of the intelligent trajectory acquisition pen.

Description

Intelligent track acquisition pen

Technical field

The utility model relates to the technical field of smart pens, in particular to a smart track collecting pen.

Background technique

Writing is a very wonderful experience. Writing on paper always has a charm. Even in the information age, people are always eager to save handwritten notes. Especially in terms of smart education, when black technologies such as electromagnetic writing recognition, infrared dot matrix recognition, and ultrasonic recognition are integrated into writing, there are all kinds of smart writing pens.

Existing note-taking software generates corresponding notes according to the actual position of the pen tip on the dot-matrix notebook, and the notes and the dot-matrix notebook are in a one-to-one correspondence. This method causes the content written on different notebooks of the same batch of notebooks to be indistinguishable.

Therefore, there is an urgent need for a new smart track acquisition pen solution with simple structure, easy maintenance and high work efficiency.

Utility model content

In view of this, the embodiments of the present invention provide an intelligent trajectory collecting pen, which is used to provide a simple structure, easy maintenance and high efficiency smart trajectory collecting pen solution through a combination of hardware structure and hardware structure. The smart track collection pen includes:

A pressure switch module, the pressure switch module is arranged at the tip part of the smart track acquisition pen, and is used to transmit an activation signal when the pressure of the tip when writing on the writing paper exceeds a preset threshold;

An infrared light emitting circuit, the infrared light emitting circuit is communicatively connected with the pressure switch module, and after receiving the activation signal, emits an infrared light signal to the writing area where the pen tip is in contact with the writing paper;

A camera acquisition module, where the camera acquisition module collects the trajectory formed by the pen tip in the writing area after the infrared light emitting circuit emits an infrared light signal to form trajectory information;

MCU module, the MCU module uses a preset data processing algorithm to perform data conversion processing on the trajectory information to form a trajectory digital signal;

A memory, the memory is used to store the trajectory digital signal formed by the MCU module;

Bluetooth communication circuit, the Bluetooth communication circuit sends the track digital signal stored in the memory to the target terminal after the smart track acquisition pen is successfully connected to the target terminal.

According to a specific implementation manner of the embodiment of the present invention, the smart track acquisition pen further includes:

The power management circuit is used to supply power to the pressure switch module, the infrared light emitting circuit, the camera acquisition module, the MCU module, the memory, and the Bluetooth communication circuit, respectively.

According to a specific implementation manner of the embodiment of the present invention, the power management circuit includes:

A first port, where the first port is used to provide a high-level power signal, and the first port is sequentially connected to a first resistor and a first inductor to form a high-level supply point;

A second port and a third port, where the second port and the third port are used to provide a differential connection information channel;

A fourth port, the fourth port is for providing a ground connection signal, and the fourth port is connected to the ground through a second inductor.

According to a specific implementation of the embodiment of the present utility model, the high-level power supply point is connected to the first end of the first capacitor and the second capacitor connected in parallel, and the second capacitor of the first capacitor and the second capacitor is Connect the terminal to the ground.

According to a specific implementation of the embodiment of the present utility model, 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.

According to a specific implementation of the embodiment of the present utility model, 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.

According to a specific implementation of the embodiment of the present invention, 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 ground.

According to a specific implementation of the embodiment of the present utility model, 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 ground.

According to a specific implementation of the embodiment of the present invention, 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 ground.

According to a specific implementation manner of the embodiment of the present utility model, the first port, the second port, the third port, and the fourth port are arranged in parallel in the form of a USB interface.

The smart trajectory acquisition pen provided by the embodiment of the utility model includes a pressure switch module, the pressure switch module is arranged on the tip part of the smart trajectory acquisition pen, and is used when the pressure of the tip of the pen when writing on the writing paper exceeds a preset threshold After that, an activation signal is emitted; an infrared light emission circuit, the infrared light emission circuit is communicatively connected with the pressure switch module, and after receiving the activation signal, it emits infrared light to the writing area where the pen tip is in contact with the writing paper Optical signal; camera acquisition module, the camera acquisition module collects the trajectory formed by the pen tip in the writing area after the infrared light emitting circuit emits the infrared light signal to form trajectory information; MCU module, the MCU module passes A preset data processing algorithm, the trajectory information undergoes data conversion processing to form a trajectory digital signal; a memory, the memory is used to store the trajectory digital signal formed by the MCU module; a Bluetooth communication circuit, the Bluetooth communication circuit is in the After the intelligent trajectory collecting pen is successfully connected to the target terminal, the trajectory digital signal stored in the memory is sent to the target terminal. Through the solution of the present invention, the input trajectory can be collected effectively.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present utility model more clearly, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

Figure 1 is a schematic structural diagram of a smart track acquisition pen provided by an embodiment of the utility model;

Fig. 2 is a schematic structural diagram of a power management circuit provided by an embodiment of the present invention.

detailed description

The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

It should be clear that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model. Referring to Figures 1-2, an embodiment of the present invention provides an intelligent trajectory acquisition pen, which includes a pressure switch module, an infrared light emitting circuit, a camera acquisition module, an MCU module, a memory, and a Bluetooth communication circuit.

The pressure switch module is used to sense the pressure during writing. To this end, the pressure switch module can be set on the tip part of the smart track acquisition pen, for when the pressure of the pen tip when writing on the writing paper exceeds a preset threshold After that, the start signal is transmitted, and by setting the start signal, other parts of the smart track acquisition pen can be awakened from the dormant state, so that the track writing response can be quickly performed.

The infrared light emitting circuit includes an infrared emitting tube for emitting infrared rays. The infrared light emitting circuit is in communication connection with the pressure switch module. The writing area emits infrared light signals, through which infrared light signals can be used for infrared capture of writing.

The camera acquisition module includes an image acquisition device (for example, a camera). The device in the camera acquisition module can collect infrared or visible light images. After the infrared light emission circuit emits infrared light signals, the camera acquisition module collects the pen The track formed by the writing area forms track information. The trajectory information is the original information when the pen is written. In addition, the camera acquisition module can also merge the collected original writing information and the pressure information formed by the pressure sensor to form the final trajectory information containing the pressure value.

The MCU module uses a preset data processing algorithm to perform data conversion processing on the trajectory information to form a trajectory digital signal. In the process of data conversion, through comprehensive calculation of pressure value and trajectory information, trajectory information containing different writing pressure values is formed.

Bluetooth communication circuit, the Bluetooth communication circuit sends the track digital signal stored in the memory to the target terminal after the smart track acquisition pen is successfully connected to the target terminal. The target terminal may be an electronic device such as a mobile phone or a notebook. Through the target terminal, the writing trajectory of the smart trajectory collecting pen can be acquired and displayed.

According to a specific implementation of the embodiment of the present utility model, the smart track acquisition pen further includes: a power management circuit, the power management circuit is used to provide the pressure switch module, the infrared light emitting circuit, the The camera acquisition module, the MCU module, the memory and the Bluetooth communication circuit provide power.

According to a specific implementation of the embodiment of the present utility model, 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 ground.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship of other indications is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing and simplifying the description of the utility model, and does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. The azimuth structure and operation of, therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or an option. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present utility model can be understood under specific circumstances.

The above are only specific implementations of the present utility model, but the protection scope of the present utility model is not limited to this. Any person skilled in the art can easily think of changes within the technical scope disclosed by the utility model. Or replacement, should be covered within the scope of protection of the utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Industrial applicability

With the solution of the present application, the trajectory collection operation can be performed based on the smart trajectory collection pen.

Claims

An intelligent trajectory collecting pen, characterized in that it comprises:

A pressure switch module, the pressure switch module is arranged at the tip part of the smart track acquisition pen, and is used to transmit an activation signal when the pressure of the tip when writing on the writing paper exceeds a preset threshold;

An infrared light emitting circuit, the infrared light emitting circuit is communicatively connected with the pressure switch module, and after receiving the activation signal, emits an infrared light signal to the writing area where the pen tip is in contact with the writing paper;

A camera acquisition module, where the camera acquisition module collects the trajectory formed by the pen tip in the writing area after the infrared light emitting circuit emits an infrared light signal to form trajectory information;

MCU module, the MCU module uses a preset data processing algorithm to perform data conversion processing on the trajectory information to form a trajectory digital signal;

A memory, the memory is used to store the trajectory digital signal formed by the MCU module;

Bluetooth communication circuit, the Bluetooth communication circuit sends the track digital signal stored in the memory to the target terminal after the smart track acquisition pen is successfully connected to the target terminal.
The smart track collection pen according to claim 1, wherein the smart track collection pen further comprises:

The power management circuit is used to supply power to the pressure switch module, the infrared light emitting circuit, the camera acquisition module, the MCU module, the memory, and the Bluetooth communication circuit, respectively.
The smart track acquisition pen according to claim 2, wherein the power management circuit comprises:

A first port, where the first port is used to provide a high-level power signal, and the first port is sequentially connected to a first resistor and a first inductor to form a high-level supply point;

A second port and a third port, where the second port and the third port are used to provide a differential connection information channel;

The fourth port, the fourth port provides a ground connection signal, and the fourth port is connected to the ground through the second inductance.
The smart track acquisition pen according to claim 3, characterized in that:

The high-level power supply point is connected to the first end of the first capacitor and the second capacitor connected in parallel, and the second end of the first capacitor and the second capacitor is connected to the ground.
The smart track acquisition pen according to claim 4, characterized in that:

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 smart track acquisition pen according to claim 5, characterized in that:

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 smart track acquisition pen according to claim 6, characterized in that:

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 smart track acquisition pen according to claim 7, characterized in that:

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 ground.
The smart track acquisition pen according to claim 8, characterized in that:

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 ground.
The smart track acquisition pen according to claim 9, characterized in that:

The first port, the second port, the third port, and the fourth port are arranged in parallel in the form of a USB interface.