CN105654080B - Operation control method and device of stylus pen - Google Patents

Abstract

The invention is suitable for the technical field of handwriting pens and provides an operation control method and device of a handwriting pen. The method comprises the following steps: when the recording request information is detected, acquiring a writing image at a preset frequency through a camera, wherein the distance between the camera and a pen point of the writing pen is smaller than a first preset value; and performing character recognition on the written image, generating text data corresponding to the written image, and storing the text data. According to the invention, when the recording request information is detected, the writing image is acquired at the preset frequency through the camera, character recognition is carried out on the writing image, the text data corresponding to the writing image is generated, and the text data is stored, so that note taking is realized through the handwriting pen on the premise of not depending on the touch screen device, and the flexibility of the operation control of the handwriting pen is improved.

Description

Operation control method and device of stylus pen

technical field

The invention belongs to the technical field of stylus, and particularly relates to an operation control method and device of a stylus.

Background technique

Although mobile terminals such as mobile phones and tablet computers have been popularized among primary and secondary school students, teachers generally do not allow students to use mobile phones or tablet computers in the classroom. When students use traditional pens to transcribe notes in class, it is generally difficult to do two things, which makes it difficult to take into account the teacher's lecture content when taking notes. The existing stylus is used in combination with a mobile phone, a tablet computer, or a handwriting tablet. Since students cannot use a mobile phone or a tablet computer during class, it is difficult to use the stylus in the classroom.

SUMMARY OF THE INVENTION

In view of this, embodiments of the present invention provide an operation control method and device for a stylus, so as to solve the problem of poor flexibility of operation control of the existing stylus.

In a first aspect, an embodiment of the present invention provides an operation control method for a stylus, including:

When the recording request information is detected, a writing image is obtained at a preset frequency through a camera, and the distance between the camera and the tip of the stylus is less than a first preset value;

Character recognition is performed on the written image, text data corresponding to the written image is generated, and the text data is stored.

In a second aspect, an embodiment of the present invention provides an operation control device for a stylus, including:

an image recording unit, configured to obtain a writing image at a preset frequency through a camera when the recording request information is detected, and the distance between the camera and the tip of the stylus is less than a first preset value;

A text recognition and storage unit, configured to perform character recognition on the written image, generate text data corresponding to the written image, and store the text data.

Compared with the prior art, the embodiment of the present invention has the following beneficial effects: when the recording request information is detected, the embodiment of the present invention obtains a writing image at a preset frequency through a camera, performs character recognition on the writing image, and generates a corresponding writing image corresponding to the writing image. and store the text data, thereby realizing note-taking through the stylus without relying on the touch screen device, and improving the flexibility of the stylus operation control.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the realization flow chart of the operation control method of the stylus pen provided by the embodiment of the present invention;

Fig. 2 is the realization flow chart of the operation control method of the stylus pen provided by another embodiment of the present invention;

Fig. 3 is the realization flow chart of the operation control method of the stylus pen provided by another embodiment of the present invention;

FIG. 4 is a structural block diagram of an operation control device for a stylus pen provided by an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

FIG. 1 shows an implementation flowchart of a method for controlling an operation of a stylus provided by an embodiment of the present invention, which is described in detail as follows:

In step S101, when the recording request information is detected, a writing image is acquired at a preset frequency through a camera, and the distance between the camera and the tip of the stylus is less than a first preset value.

In the embodiment of the present invention, the stylus is provided with a camera, the camera is arranged near the tip of the stylus, and the distance from the tip of the stylus is smaller than the first preset value. The camera may be a high-speed camera. When the recording request information is detected, the camera continuously captures the writing image at a preset frequency.

As an embodiment of the present invention, the stylus includes a first nib and a second nib, and the two nibs can be switched for use. Wherein, the first pen tip is used for writing on the paper, and the second pen tip is used for writing on the touch screen.

In step S102, character recognition is performed on the written image, text data corresponding to the written image is generated, and the text data is stored.

In the embodiment of the present invention, after acquiring the writing image, character recognition is performed on the writing image. For example, OCR (Optical Character Recognition) is performed on the written image. After character recognition is performed on the written image, text data corresponding to the written image is generated and stored, thereby realizing taking notes with a stylus without relying on a touch screen device.

FIG. 2 shows a flowchart of an implementation of a method for controlling an operation of a stylus provided by another embodiment of the present invention, with reference to FIG. 2 :

In step S201, when it is detected that the distance between the tip of the stylus and the object in front is less than the second preset value, record request information is generated;

In step S202, when recording request information is detected, a writing image is obtained at a preset frequency through a camera, and the distance between the camera and the tip of the stylus is less than a first preset value;

In step S203, character recognition is performed on the written image, text data corresponding to the written image is generated, and the text data is stored.

As an embodiment of the present invention, the distance between the pen tip of the stylus and the object in front is detected, and when the distance between the pen tip and the object in front is less than a second preset value, recording request information is generated. Wherein, the second preset value may be 1 cm, which is not limited herein.

Optionally, the camera is a high-speed infrared camera, and the distance between the tip of the stylus and the object in front is detected by an infrared transceiver in the camera.

Optionally, a proximity sensor is arranged near the tip of the stylus, and the distance between the tip of the stylus and the object in front is detected by the proximity sensor.

As another embodiment of the present invention, a first button is set on the stylus, and recording request information is generated when it is detected that the first button is pressed.

As another embodiment of the present invention, a pressure sensor is provided on the pen holder of the stylus, and when the pressure value detected by the pressure sensor is greater than a third preset value, recording request information is generated.

Preferably, the method further includes:

When it is detected that the distance between the tip of the stylus and the object in front is greater than or equal to the second preset value, stop recording request information is generated.

As an embodiment of the present invention, when the stop recording request information is detected, the acquisition of the writing image through the camera is stopped, so as to reduce the power consumption of the stylus.

As another embodiment of the present invention, when the duration of generating the stop recording request information reaches a fourth preset value, the acquisition of the writing image by the camera is stopped.

FIG. 3 shows a flowchart of an implementation of a method for controlling an operation of a stylus provided by another embodiment of the present invention, with reference to FIG. 3 :

In step S301, when recording request information is detected, a writing image is obtained at a preset frequency through a camera, and the distance between the camera and the tip of the stylus is less than a first preset value;

In step S302, character recognition is performed on the written image, text data corresponding to the written image is generated, and the text data is stored;

In step S303, when recording request information is detected, recording is performed, and the recording file is stored;

In step S304, the recording file and the text data are matched and stored according to the recording time corresponding to the recording file and the writing time corresponding to the text data.

As an embodiment of the present invention, the stylus further has a recording device, when the recording request information is detected, the recording is performed, and the recording file is stored. In the embodiment of the present invention, the recording file has a time stamp, and the text data corresponding to the writing image also has a time stamp. It is possible to combine the recording files and text data of the same time period for review.

As an embodiment of the present invention, after the recording file and the text data are matched and stored according to the recording time corresponding to the recording file and the writing time corresponding to the text data, the method further includes: when a data transmission request is received, Send the recording file and the text data that are matched and stored to the designated terminal, so that the user can view the recording file and the text data through the designated terminal.

Preferably, before the recording is performed when the recording request information is detected, the method further includes:

When a recording request message is detected, a recording request message is generated; and/or

When a preset button press is detected, a recording request message is generated.

As an embodiment of the present invention, since it is often difficult for users to do two things when taking notes, and cannot take into account the content of the teacher's lecture, therefore, when recording request information is detected, recording request information is generated, so that the stylus can be used when the user is taking notes. Make a recording.

As another embodiment of the present invention, a preset button is set on the stylus, when the preset button is pressed, recording request information is generated; when the preset button is popped up, recording stop recording request information is generated.

It should be understood that, in this embodiment of the present invention, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, rather than the implementation process of the embodiment of the present invention. constitute any limitation.

In this embodiment of the present invention, when recording request information is detected, a camera is used to obtain a written image at a preset frequency, character recognition is performed on the written image, text data corresponding to the written image is generated, and the text data is stored, thereby independent of the touch screen device. On the premise of using a stylus, note-taking is realized, which improves the flexibility of stylus operation and control.

FIG. 4 shows a structural block diagram of an operation control apparatus for a stylus provided by an embodiment of the present invention. The device may be a stylus or a device built into the stylus, which is not limited herein. The device can be used to run the operation control method of the stylus shown in FIG. 1 to FIG. 3 . For the convenience of description, only the parts related to the embodiments of the present invention are shown.

Referring to Figure 4, the device includes:

The image recording unit 41 is configured to obtain a writing image at a preset frequency through a camera when the recording request information is detected, and the distance between the camera and the tip of the stylus is less than a first preset value;

The text recognition and storage unit 42 is configured to perform character recognition on the written image, generate text data corresponding to the written image, and store the text data.

Preferably, the device further comprises:

The recording request information generating unit 43 is configured to generate the recording request information when it is detected that the distance between the tip of the stylus and the object in front is less than a second preset value.

Preferably, the device further comprises:

The recording stop request information generating unit 44 is configured to generate stop recording request information when it is detected that the distance between the pen tip of the stylus and the object in front is greater than or equal to the second preset value.

Preferably, the device further comprises:

The recording unit 45 is used for recording when detecting the recording request information, and storing the recording file;

The matching storage unit 46 is configured to match and store the recording file and the text data according to the recording time corresponding to the recording file and the writing time corresponding to the text data.

Preferably, the device further comprises:

a first recording request information generating unit 47, configured to generate the recording request information when the recording request information is detected; and/or

The second recording request information generating unit 48 is configured to generate the recording request information when it is detected that the preset button is pressed.

In this embodiment of the present invention, when recording request information is detected, a camera is used to obtain a written image at a preset frequency, character recognition is performed on the written image, text data corresponding to the written image is generated, and the text data is stored, thereby independent of the touch screen device. On the premise of using a stylus, note-taking is realized, which improves the flexibility of stylus operation and control.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, for the specific working process of the above-described devices and units, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, and the indirect coupling or communication connection of units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (6)

1. An operation control method for a stylus, wherein the stylus is provided with a camera, and the distance between the camera and the tip of the stylus is less than a first preset value, and the operation control method comprises: When the recording request information is detected, the writing image is acquired at a preset frequency through the camera; performing character recognition on the writing image, generating text data corresponding to the writing image, and storing the text data and the writing time of the text data; Before acquiring the writing image at a preset frequency through the camera when the recording request information is detected, the method further includes: When it is detected that the distance between the tip of the stylus and the object in front is less than a second preset value, generating the recording request information; Wherein, after the recording request information is detected and the writing image is acquired at a preset frequency through the camera, the method further includes: When it is detected that the distance between the tip of the stylus and the object in front is greater than or equal to the second preset value, generating stop recording request information; When the duration of generating the stop recording request information reaches a fourth preset value, stop acquiring the writing image through the camera; The camera is an infrared camera, and the distance between the tip of the stylus and the object in front is detected by the infrared transceiver of the infrared camera. 2. The method of claim 1, wherein the method further comprises: When the recording request information is detected, the recording is performed and the recording file is stored; The recording file and the text data are matched and stored according to the recording time corresponding to the recording file and the writing time corresponding to the text data. 3. The method according to claim 2, wherein, before the recording is performed when the recording request information is detected, the method further comprises: When the recording request information is detected, the recording request information is generated; and/or When it is detected that the preset button is pressed, the recording request information is generated. 4. An operation control device for a stylus, wherein the stylus is provided with a camera, and the distance between the camera and the tip of the stylus is less than a first preset value, and the operation control device comprises: an image recording unit, configured to acquire a writing image at a preset frequency through the camera when recording request information is detected; a text recognition and storage unit, configured to perform character recognition on the written image, generate text data corresponding to the written image, and store the text data and the writing time of the text data; The device also includes: a recording request information generating unit, configured to generate the recording request information when it is detected that the distance between the tip of the stylus and the object in front is less than a second preset value; Wherein, the device also includes: The stop recording request information generating unit is used to generate stop recording request information when it is detected that the distance between the pen tip of the stylus and the object in front is greater than or equal to the second preset value; and when generating the stop recording request information When the duration reaches the fourth preset value, stop acquiring the writing image through the camera; The camera is an infrared camera, and the recording request information generation unit and the stop recording request information generation unit detect the distance between the tip of the stylus and the object ahead through the infrared transceiver of the infrared camera. 5. The apparatus of claim 4, wherein the apparatus further comprises: The recording unit is used for recording and storing the recording file when the recording request information is detected; The matching storage unit is configured to match and store the recording file and the text data according to the recording time corresponding to the recording file and the writing time corresponding to the text data. 6. The apparatus of claim 5, wherein the apparatus further comprises: a first recording request information generating unit, configured to generate the recording request information when the recording request information is detected; and/or The second recording request information generating unit is configured to generate the recording request information when it is detected that the preset button is pressed.

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