CN115086626A - Projection pen, projection method and storage medium - Google Patents

Projection pen, projection method and storage medium Download PDF

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Publication number
CN115086626A
CN115086626A CN202210565430.2A CN202210565430A CN115086626A CN 115086626 A CN115086626 A CN 115086626A CN 202210565430 A CN202210565430 A CN 202210565430A CN 115086626 A CN115086626 A CN 115086626A
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CN
China
Prior art keywords
projection
module
angle
preset
pen
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210565430.2A
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Chinese (zh)
Inventor
钟楚君
陶建伟
梁良
魏晓曼
李国熙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Dameng Security Technology Co ltd
Original Assignee
Guangzhou Dameng Security Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Dameng Security Technology Co ltd filed Critical Guangzhou Dameng Security Technology Co ltd
Priority to CN202210565430.2A priority Critical patent/CN115086626A/en
Publication of CN115086626A publication Critical patent/CN115086626A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof
    • H04N9/3173Constructional details thereof wherein the projection device is specially adapted for enhanced portability
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191Testing thereof

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

The application provides a projection pen, include: a housing forming an accommodating space; the projection module is used for executing preset projection operation; the data processing module is used for preprocessing the media data and transmitting the processed media data to the projection module; the driving module is used for adjusting the projection angle of the projection module; the image acquisition module is used for acquiring a projection picture of the projection module; a controller to: when a projection control instruction is received, controlling the projection module to execute preset pre-projection operation; after the pre-projection operation is finished, controlling the image acquisition module to acquire a projection picture; analyzing whether the current projection angle of the projection module accords with a preset angle or not according to the projection picture; and when the current projection angle does not accord with the preset angle, controlling the driving module to adjust the projection angle of the projection module to the preset projection angle, and controlling the projection module to execute projection operation.

Description

Projector pen, projection method and storage medium
Technical Field
The invention relates to the field of projection pens, in particular to a projection pen, a projection method and a storage medium.
Background
At present, a plurality of projection pens with projection functions appear on the market. The projector pen is smaller and more portable than a common projector, so that the projector pen is widely applied. However, in the application process, the projection effect of the projector pen is poor due to different use scenarios.
Therefore, how to provide a projector pen with better projection effect becomes a research problem for those skilled in the art.
Disclosure of Invention
The present application provides a projector pen, a projection method and a storage medium, which are used to improve the projection effect of the projector pen.
In a first aspect, the present application provides a projector pen, comprising:
the shell forms an accommodating space with an opening;
the projection module is exposed out of the shell through the opening part and is used for executing preset projection operation;
the data processing module is used for preprocessing the media data to be projected and transmitting the processed media data to the projection module;
the driving module is used for adjusting the projection angle of the projection module;
the image acquisition module is used for acquiring a projection picture of the projection module;
the controller, the controller is connected with image acquisition module and drive module for:
when a projection control instruction is received, controlling a projection module to execute preset pre-projection operation;
after the pre-projection operation is finished, controlling the image acquisition module to acquire a projection picture projected by the projection module;
analyzing whether the current projection angle of the projection module accords with a preset angle or not according to the projection picture;
when the current projection angle does not accord with the preset angle, the driving module is controlled to adjust the projection angle of the projection module to the preset projection angle, and the projection module is controlled to execute projection operation.
In some embodiments, the projector pen further comprises an input device connected to the controller, and when the input device is triggered, the projection control command is generated.
In some embodiments, the projection control instruction is generated after the data processing module performs the preprocessing operation on the media data to be projected.
In some embodiments, the current projection angle acquisition process comprises: and determining a projection boundary of the projection picture, and determining the current projection angle of the projection module according to the projection boundary.
In some embodiments, a projection picture projected by the pre-projection operation is a preset picture, and the preset picture is provided with a calibration identifier; the current projection angle acquisition process comprises the following steps:
and determining deflection information of the calibration mark, and determining the current projection angle of the projection module according to the deflection information.
In some embodiments, the controller is further configured to: when receiving a projection reset instruction generated by triggering the output device, the control driving module drives the projection module to reset so as to restore the projection angle of the projection module to the initial projection angle before the preset projection angle is adjusted.
In some embodiments, the projector pen is further provided with a pointing element, the controller being further configured to:
when the switch element is triggered, the indicating element is controlled to output corresponding state prompt according to the working state information of the input device.
In a second aspect, the present application provides a projection method, which is applied to the aforementioned projection pen, and the method includes:
when a projection control instruction is received, controlling a projection module of the projection pen to execute preset projection operation;
after the projection operation is finished, controlling an image acquisition module of the projection pen to acquire a projection picture projected by the projection module;
analyzing whether the current projection angle of the projection module accords with a preset angle or not according to the projection picture;
when the current projection angle does not accord with the preset angle, the driving module of the projection pen is controlled to adjust the projection angle of the projection module to the preset angle.
In a third aspect, the present application provides a storage medium storing a computer program, which when executed by a processor implements the aforementioned projection method.
The application provides a projection pen, a projection method and a storage medium, wherein the projection pen comprises a shell, a projection module, a driving module, an image acquisition module and a controller, and the controller is used for: when a projection control instruction is received, controlling the projection module to execute preset pre-projection operation; after the pre-projection operation is finished, controlling the image acquisition module to acquire a projection picture; analyzing whether the current projection angle of the projection module accords with a preset angle or not according to the projection picture; and when the current projection angle does not accord with the preset angle, controlling the driving module to adjust the projection angle of the projection module to the preset projection angle, and controlling the projection module to execute projection operation. Through setting up drive module, image acquisition device and controller, adjust the projection angle of projection pen to improve the projection effect of projection pen.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a block diagram schematically illustrating a projector pen according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a projector pen according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a projector pen according to an embodiment of the present disclosure;
fig. 4 is a schematic front-back state diagram of a projection module according to an embodiment of the present disclosure for adjusting a projection angle;
fig. 5 is a schematic view illustrating a front-back state of a projection module according to another embodiment of the present disclosure in which a projection angle is adjusted;
fig. 6 is a flowchart illustrating steps of a projection method according to an embodiment of the present application.
Icon: 10. a projection pen; 11. a housing; 12. a projection module; 13. a data processing module; 111. an opening; 14. a driving module; 15. an image acquisition module; 16. a controller; 17. an input device; 18. a circuit module; 19. a switching element; 20. an indicating element; 21. a pen core.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The flow diagrams depicted in the figures are merely illustrative and do not necessarily include all of the elements and operations/steps, nor do they necessarily have to be performed in the order depicted. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
In the following, some embodiments of the present application will be described in detail with reference to the drawings, and features in the following examples and embodiments may be combined with each other without conflict.
Referring to fig. 1, fig. 2 and fig. 3, the present application provides a projector pen 10, which includes a housing 11, a data processing module 13, a projection module 12, a driving module 14, an image capturing module 15 and a controller 16.
The housing 11 forms an accommodating space having an opening 111, and the projection module 12 is partially exposed out of the housing 11 through the opening 111 for performing a predetermined projection operation. The data processing module 13 is configured to pre-process the media data to be projected and transmit the processed media data to the projection module 12. The driving module 14 is used for adjusting the projection angle of the projection module 12. The image collecting module 15 is used for collecting the projection picture of the projection module 12. The controller 16 is connected with the image acquisition module 15 and the driving module 14, and is used for controlling the projection module 12 to execute a preset pre-projection operation when receiving a projection control instruction; after the pre-projection operation is finished, controlling the image acquisition module 15 to acquire a projection picture projected by the projection module 12; analyzing whether the current projection angle of the projection module 12 accords with a preset angle or not according to the projection picture; when the current projection angle does not conform to the preset angle, the control driving module 14 adjusts the projection angle of the projection module 12 to the preset projection angle, and controls the projection module 12 to perform the projection operation.
For example, referring to fig. 4, the left side of fig. 4 is a picture projected by the pre-projection operation performed by the projection module 12 before adjusting the projection angle, and the image capturing module 15 captures the projection picture projected by the projection module 12. And analyzing whether the current projection angle accords with a preset angle or not according to the projection picture. The preset angle may be that the upper edge of the picture projected at the preset angle is horizontal. If the current projection angle does not match the predetermined angle, such as the projection image shown on the left side in fig. 4, the driving module 14 is controlled to adjust the projection angle of the projection module 12 to the predetermined projection angle, so that the upper edge of the projection image is in a horizontal state.
The application provides a projecting pen 10 is used for treating through data processing module 13 and carries out the preliminary treatment and will handle the media data transmission after to projection module 12 of carrying out the projected media data, through projection module's projection operation in advance, image acquisition module 15 and drive module 14, adjusts the projection angle of projection module 12 and reaches and predetermine the projection angle to satisfy user's projection demand, improve projecting pen 10's projection effect.
In some embodiments, the projector pen 10 further includes a circuit module 18, and the circuit module 18 is connected to the data processing module 13, the projection module, the driving module 14, and the image capturing module 15 for supplying power.
In some embodiments, the projector pen 10 further comprises an input device 17 connected to the controller 16, and when the input device 17 is activated, projection control instructions are generated.
The input device 17 may be a wireless transmission device such as bluetooth, and the projector pen 10 is connected to an external device through the input device 17. When the external device transmits data to the input device 17, the input device 17 is triggered to generate a projection control command. The projector pen 10 may further include a pen core 21 partially accommodated in the accommodating space, and the pen core 21 is exposed out of the casing 11 through an opening at an end of the casing 11 far from the opening 111. The projector pen 10 can also be used as a hand-drawing pen to draw on equipment such as a hand-drawing board and a computer through the pen core 21, and images and the like on the equipment can be received by the projector pen 10 through the input device 17, and the drawn images are projected at the same time of drawing.
In some embodiments, the projection control instruction is generated after the data processing module 13 completes the preprocessing operation performed on the media data to be projected.
For example, the data processing module 13 performs a pre-processing operation on the media data to be projected, which may include limiting the range of the image, controlling the magnification and definition of the image. The data processing module 13 may include a data encoding module and a data decoding module. After the video encoding module analyzes the media data received by the projector pen 10, the video decoding module starts to decode the picture to be projected and generates a projection control command. The controller 16 receives the projection control command and controls the projection module 12 to perform the projection operation. Taking the projection pen 10 having the function of a manual pen as an example, a projected picture can be enlarged by 2 times in a region with the pen core 21 as the center of a circle and the diameter distance of 200 pixels displayed in a device connected with the projection pen 10. It is understood that different projection areas and different magnifications can be realized by different encoding and decoding, which is not limited herein.
In some embodiments, the current projection angle acquisition process comprises: and determining a projection boundary of the projection picture, and determining the current projection angle of the projection module 12 according to the projection boundary.
For example, referring to fig. 4, the left side of fig. 4 is a picture projected by the projection module 12 without adjusting the projection angle. According to the angle between the projection boundary of the projection picture and the horizontal line or the vertical line, the current projection angle of the projection module 12 can be determined. According to the current projection angle, when the current projection angle does not meet the preset angle, the controller 16 controls the driving module 14 to adjust the projection angle of the projection module 12 to the preset projection angle, and the picture after the preset angle is adjusted is the projection picture shown on the right side in fig. 4.
In some embodiments, a projection picture projected by the pre-projection operation is a preset picture, and the preset picture is provided with a calibration identifier; the current projection angle acquisition process comprises the following steps:
the identified deflection information is indeed calibrated and the current projection angle of the projection module 12 is determined from the deflection information.
Illustratively, the screen projected by the pre-projection operation is a preset screen provided with a calibration flag, such as an arrow shown in fig. 5. According to the arrow shown in the left image in fig. 5, the deflection information of the arrow is determined, and the current projection angle of the projection module 12 is determined according to the deflection information. According to the current projection angle, when the current projection angle does not meet the preset angle, the controller 16 controls the driving module 14 to adjust the projection angle of the projection module 12 to the preset projection angle, and the picture after the preset angle is adjusted is the projection picture shown on the right side in fig. 5.
Referring to fig. 2, in some embodiments, the projector pen 10 further includes a switch element 19 disposed on the housing 11; when the switching element 19 is activated, the input device 17 is activated and generates a projection control command.
Illustratively, the switching element 19 may be activated by pressing the switching element 19 for a long time, and when the switching element 19 is activated, the input device 17 is activated and generates a projection control instruction.
In some embodiments, the projector pen 10 is further provided with an indication element 20, and the controller 16 is further configured to control the indication element 20 to output a corresponding status prompt according to the operating status information of the input device 17 when the switch element 19 is triggered.
Illustratively, the indication element 20 is exposed to the housing 11 through an opening, and the switch element 19 can be activated by pressing the switch element 19 for a long time. When the input device 17 is in a non-operating state, i.e. in a non-activated state, a long press of the switching element 19 triggers the activation of the input device 17. The indicating element 20 may be illuminated in a first color to indicate that the input device 17 is in the on state and the subsequent operating state. When the input device 17 is in the working state, the long-press switch element 19 is triggered to turn off the input device 17. The indicator element 20 may be switched from the first color to the second color at this time and extinguished to indicate that the input device 17 is turned off. The first color and the second color are different colors to indicate different states.
In some embodiments, the controller 16 is further configured to: when receiving a projection reset instruction generated by triggering the input device 17, the control driving module 14 drives the projection module 12 to reset, so that the projection angle of the projection module 12 is restored to the initial projection angle before being adjusted to the preset projection angle.
Illustratively, when the input device 17 is in the working state, long-pressing the switch element 19 triggers to turn off the input device 17, at which time the input device 17 generates a projection reset command. The controller 16 controls the driving module 14 to drive the projection module 12 to reset according to the projection reset instruction, so that the projection angle of the projection module 12 is restored to the initial projection angle before being adjusted to the preset projection angle.
Referring to fig. 6, fig. 6 is a flowchart illustrating steps of a projection method according to an embodiment of the present application, which is applied to the projector pen 10, and includes the following steps:
s10: when a projection control instruction is received, controlling a projection module to execute preset pre-projection operation;
s11: after the pre-projection operation is finished, controlling the image acquisition module to acquire a projection picture projected by the projection module;
s12: analyzing whether the current projection angle of the projection module accords with a preset angle or not according to the projection picture;
s13: when the current projection angle does not accord with the preset angle, the driving module is controlled to adjust the projection angle of the projection module to the preset projection angle, and the projection module is controlled to execute projection operation.
Embodiments of the present application also provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, where the computer program includes program instructions, and when the program instructions are executed, the method implemented by the program instructions may refer to various embodiments of the projection method of the present application.
The computer-readable storage medium may be an internal storage unit of the computer device of the foregoing embodiment, for example, a hard disk or a memory of the computer device. The computer readable storage medium may also be an external storage device of the computer device, such as a plug-in hard disk provided on the computer device, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like.
It is to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments. While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A projector pen, comprising:
a housing forming an accommodating space having an opening;
the projection module is exposed out of the shell through the opening part and is used for executing preset projection operation;
the data processing module is used for preprocessing the media data to be projected and transmitting the processed media data to the projection module;
the driving module is used for adjusting the projection angle of the projection module;
the image acquisition module is used for acquiring a projection picture of the projection module;
a controller, the controller with the image acquisition module the drive module reaches the projection module is connected for:
when a projection control instruction is received, controlling the projection module to execute preset pre-projection operation;
after the pre-projection operation is finished, controlling the image acquisition module to acquire a projection picture projected by the projection module;
analyzing whether the current projection angle of the projection module accords with a preset angle or not according to the projection picture;
and when the current projection angle does not accord with the preset angle, controlling the driving module to adjust the projection angle of the projection module to the preset projection angle, and controlling the projection module to execute projection operation.
2. The projector pen of claim 1, further comprising an input device connected to the controller, wherein the input device generates the projection control command when triggered.
3. The projector pen as claimed in claim 1, wherein the projection control instruction is generated after the data processing module completes the pre-processing operation performed on the media data to be projected.
4. The projector pen of any of claims 1 to 3 wherein the current projection angle acquisition process comprises: and determining a projection boundary of the projection picture, and determining the current projection angle of the projection module according to the projection boundary.
5. The projection pen according to any one of claims 1 to 3, wherein the projection picture projected by the pre-projection operation is a preset picture, and the preset picture is provided with a calibration identifier; the current projection angle obtaining process comprises the following steps:
and determining deflection information of the calibration mark, and determining the current projection angle of the projection module according to the deflection information.
6. The projector pen of claim 2, wherein the controller is further configured to: when receiving a projection reset instruction generated by triggering the input device, controlling the driving module to drive the projection module to reset so as to restore the projection angle of the projection module to the initial projection angle before the preset projection angle is adjusted.
7. The projector pen of claim 2, further comprising a switch element disposed on the housing; when the switching element is triggered, the input device is triggered and generates the projection control command.
8. The projector pen of claim 7, wherein the projector pen is further provided with a pointing element, the controller being further configured to:
and when the switch element is triggered, controlling the indicating element to output a corresponding state prompt according to the working state information of the input device.
9. A projection method, applied to a projector pen according to any of claims 1 to 8, the method comprising:
when a projection control instruction is received, controlling a projection module of the projection pen to execute preset projection operation;
after the projection operation is finished, controlling an image acquisition module of the projection pen to acquire a projection picture projected by the projection module;
analyzing whether the current projection angle of the projection module accords with a preset angle or not according to the projection picture;
and when the current projection angle does not accord with the preset angle, controlling a driving module of the projection pen to adjust the projection angle of the projection module to the preset angle.
10. A storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the projection method according to claim 9.
CN202210565430.2A 2022-05-23 2022-05-23 Projection pen, projection method and storage medium Pending CN115086626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210565430.2A CN115086626A (en) 2022-05-23 2022-05-23 Projection pen, projection method and storage medium

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201698091U (en) * 2010-06-30 2011-01-05 东莞市凯卅电子科技有限公司 Projection pen capable of playing video file
JP2017010314A (en) * 2015-06-23 2017-01-12 株式会社リコー Image projection system, image projection device, pointing device, and video supply device
CN107613282A (en) * 2017-09-29 2018-01-19 无锡昊瑜节能环保设备有限公司 The projection angle method of adjustment of the projecting apparatus adaptively adjusted
CN107667526A (en) * 2015-04-22 2018-02-06 三星电子株式会社 Electronic equipment and method
CN209881955U (en) * 2019-06-03 2019-12-31 广东小天才科技有限公司 Intelligent pen with projection function
CN113949852A (en) * 2020-07-17 2022-01-18 深圳光峰科技股份有限公司 Projection method, projection apparatus, and storage medium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201698091U (en) * 2010-06-30 2011-01-05 东莞市凯卅电子科技有限公司 Projection pen capable of playing video file
CN107667526A (en) * 2015-04-22 2018-02-06 三星电子株式会社 Electronic equipment and method
JP2017010314A (en) * 2015-06-23 2017-01-12 株式会社リコー Image projection system, image projection device, pointing device, and video supply device
CN107613282A (en) * 2017-09-29 2018-01-19 无锡昊瑜节能环保设备有限公司 The projection angle method of adjustment of the projecting apparatus adaptively adjusted
CN209881955U (en) * 2019-06-03 2019-12-31 广东小天才科技有限公司 Intelligent pen with projection function
CN113949852A (en) * 2020-07-17 2022-01-18 深圳光峰科技股份有限公司 Projection method, projection apparatus, and storage medium

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