CN114089865A - Bluetooth-based electronic whiteboard cooperation method, electronic whiteboard, slave device and medium - Google Patents
Bluetooth-based electronic whiteboard cooperation method, electronic whiteboard, slave device and medium Download PDFInfo
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- CN114089865A CN114089865A CN202111411717.1A CN202111411717A CN114089865A CN 114089865 A CN114089865 A CN 114089865A CN 202111411717 A CN202111411717 A CN 202111411717A CN 114089865 A CN114089865 A CN 114089865A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/401—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
- H04L65/4015—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference where at least one of the additional parallel sessions is real time or time sensitive, e.g. white board sharing, collaboration or spawning of a subconference
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Abstract
The invention relates to an electronic whiteboard cooperation method based on Bluetooth, an electronic whiteboard, slave equipment and a medium. A Bluetooth-based electronic whiteboard cooperation method is applied to an electronic whiteboard and comprises the following steps: responding to a first Bluetooth data packet sent by the touch slave device, and analyzing to obtain touch data; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; and realizing touch operation on the display screen based on the touch data. By using the Bluetooth-based electronic whiteboard cooperation method provided by the invention, after the electronic whiteboard receives the first Bluetooth data packet sent by the touch slave device, the touch data is obtained by analyzing, and then the touch operation on the touch slave device can be realized on the electronic whiteboard without networking or plugging lines; simultaneously to the demand of hardware not high, only need between whiteboard and the touch slave unit all have bluetooth function module can, convenient and fast.
Description
Technical Field
The present invention relates to electronic devices, and in particular, to a bluetooth-based electronic whiteboard collaboration method, an electronic whiteboard, a slave device, and a medium.
Background
The electronic whiteboard of the all-in-one machine is one of necessary applications in daily use, including character writing, image annotation and the like, and is mainly a single machine version at present and also has an online collaboration version through a network. However, the electronic whiteboard of the single-computer version can only be operated on the local computer and cannot be connected with multiple computers in an online cooperation manner; the internet version of electronic whiteboard is the mainstream, but the requirements on the network environment and the hardware of the device are higher.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, it is an object of the present invention to provide a method for cooperating an electronic whiteboard based on bluetooth, which is applied to an electronic whiteboard.
The invention also aims to provide an electronic whiteboard cooperation method based on Bluetooth, which is applied to touch slave equipment.
The invention also provides an electronic whiteboard.
The fourth purpose of the invention is to provide a touch slave device.
The fifth objective of the present invention is to provide a computer readable medium.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a bluetooth-based electronic whiteboard cooperation method, applied to an electronic whiteboard, including:
responding to a first Bluetooth data packet sent by the touch slave device, and analyzing to obtain touch data; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol;
and realizing touch operation on the display screen based on the touch data.
Further, the electronic whiteboard cooperation method based on bluetooth further includes:
when the content of the display screen is refreshed, intercepting a display interface of the display screen to generate a refreshed image;
and converting the refreshed image into a second Bluetooth data packet according to a Bluetooth protocol, and sending the second Bluetooth data packet to the touch slave equipment so that the touch slave equipment displays the refreshed image.
Further, in the electronic whiteboard cooperation method based on bluetooth, the touch operation includes a track writing operation, a function operation, and an annotation operation.
Further, in the electronic whiteboard cooperation method based on bluetooth, the bluetooth protocol includes an HID protocol and an OPP protocol.
On the other hand, the invention provides an electronic whiteboard cooperation method based on Bluetooth, which is applied to touch slave equipment and comprises the following steps:
responding to touch operation to obtain touch data, and generating a first Bluetooth data packet by the touch data according to a Bluetooth protocol;
and sending the first Bluetooth data packet to an electronic whiteboard so as to realize touch operation aiming at the electronic whiteboard.
Further, the electronic whiteboard cooperation method based on bluetooth further includes:
responding to a second Bluetooth data packet sent by the electronic whiteboard, analyzing to obtain a refreshed image and displaying; and the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into the second Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed.
Further, in the electronic whiteboard cooperation method based on bluetooth, the touch operation includes a track writing operation, a function operation, and an annotation operation.
In another aspect, the present invention provides an electronic whiteboard according to any of the foregoing methods for cooperating with a bluetooth-based electronic whiteboard applied to an electronic whiteboard, including:
the first interaction module is used for receiving first Bluetooth data sent by the touch slave equipment or sending a second Bluetooth data packet to the touch slave equipment; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into a Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed;
the first processing module is used for responding to a first Bluetooth data packet sent by the touch slave device and analyzing the first Bluetooth data packet to obtain touch data; realizing touch operation on a display screen based on the touch data; or
When the content of the display screen is refreshed, intercepting a display interface of the display screen to generate a refreshed image; and converting the refreshed image into a second Bluetooth data packet according to a Bluetooth protocol.
In another aspect, the present invention provides a touch slave device applied to a bluetooth-based electronic whiteboard cooperation method for a touch slave device, including:
the second interactive module is used for sending the first Bluetooth data packet to the electronic whiteboard or receiving a second Bluetooth data packet sent by the electronic whiteboard; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into a Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed;
the second processing module is used for responding to touch operation to obtain touch data and generating a first Bluetooth data packet by the touch data according to a Bluetooth protocol; or
And analyzing the second Bluetooth data packet to obtain a refreshed image and displaying the refreshed image.
In another aspect, the present invention provides a computer readable medium storing a computer program, which when executed by a processor implements any of the aforementioned bluetooth-based electronic whiteboard cooperation methods applied to an electronic whiteboard or any of the aforementioned bluetooth-based electronic whiteboard cooperation methods applied to a touch slave device.
Compared with the prior art, the Bluetooth-based electronic whiteboard cooperation method, the electronic whiteboard, the slave device and the medium have the following beneficial effects:
by using the Bluetooth-based electronic whiteboard cooperation method provided by the invention, after the electronic whiteboard receives the first Bluetooth data packet sent by the touch slave device, the touch data is obtained by analyzing, and then the touch operation on the touch slave device can be realized on the electronic whiteboard without networking or plugging lines; simultaneously to the demand of hardware not high, only need between whiteboard and the touch slave unit all have bluetooth function module can, convenient and fast.
The Bluetooth-based electronic whiteboard cooperation method provided by the invention can ensure that the new content is generated into the second Bluetooth data packet and sent to the touch slave device as long as the new content is generated on the display screen of the electronic whiteboard, thereby ensuring that all the content displayed on the electronic whiteboard can be seen at the touch slave device.
Drawings
Fig. 1 is a flowchart of an embodiment of a method for cooperating an electronic whiteboard based on bluetooth according to the present invention;
fig. 2 is a flowchart of another embodiment of a method for cooperating an electronic whiteboard based on bluetooth according to the present invention;
fig. 3 is a flowchart of another embodiment of a method for cooperating an electronic whiteboard based on bluetooth according to the present invention;
fig. 4 is a block diagram of an embodiment of a bluetooth-based electronic whiteboard cooperation system provided in the present invention;
fig. 5 is a block diagram of another embodiment of the bluetooth-based electronic whiteboard cooperation system provided in the present invention;
fig. 6 is a block diagram of an electronic whiteboard provided in the present invention;
fig. 7 is a block diagram of a touch slave device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It is to be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of specific embodiments of the invention, and are not intended to limit the invention.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps, but may include other steps not expressly listed or inherent to such process or method. Also, without further limitation, one or more devices or subsystems, elements or structures or components beginning with "comprise. The appearances of the phrases "in one embodiment," "in another embodiment," and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Referring to fig. 1 and fig. 4-5, the present invention provides a method for cooperating an electronic whiteboard based on bluetooth, which is applied to an electronic whiteboard, where the electronic whiteboard has a basic display screen (whether or not touch is supported), a processor, and the like, and in this embodiment, the electronic whiteboard further has a bluetooth communication module, and the touch slave device also has a bluetooth communication module, and data exchange is performed between the electronic whiteboard and the touch slave device through the bluetooth communication module. In a preferred embodiment, the display slave device preferably has a touch display screen. The cooperation function can be realized as long as the electronic whiteboard and the touch slave device are both provided with the Bluetooth communication module, namely, the touch operation on the touch slave device can be synchronized to the electronic whiteboard to be realized. Of course, before cooperation is performed, bluetooth docking is required between the electronic whiteboard and the touch slave device.
The Bluetooth-based electronic whiteboard cooperation method comprises the following steps:
s11, responding to the first Bluetooth data packet sent by the touch slave device, and analyzing to obtain touch data; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; specifically, in this embodiment, the bluetooth protocol is an HID (Human Interface Device Profile) protocol, and the first bluetooth packet is an HID packet. Those skilled in the art can select an appropriate algorithm to generate the first bluetooth packet according to the HID protocol according to actual conditions.
Further, in some embodiments, the touch operation includes a writing operation, a clicking operation, a sliding operation, a transmitting operation, and the like, and the touch slave device encapsulates the touch operation into the HID data packet to generate the first bluetooth data packet.
In a further embodiment, the electronic whiteboard is equipped with an android system, and after the touch slave device sends the first bluetooth data packet to the electronic whiteboard, the electronic whiteboard analyzes the touch data and then reports the touch data to the framework layer through the kernel driver, and the touch event is converted into an android-universal touch event and responded by the corresponding APP, so that the touch operation is realized on the electronic whiteboard.
In a further embodiment, the slave device implementing touch may also transmit a picture or a document to the electronic whiteboard, or perform picture annotation in the document displayed on the electronic whiteboard, and in the specific file transmission process, when the picture or the document is converted into the first bluetooth data packet, an OPP (Object push profile) protocol is used for processing, and the specific processing process is not limited in the present invention.
And S12, realizing touch operation on the display screen based on the touch data. Specifically, after the touch data is obtained, how to display on the electronic whiteboard is not limited in the present invention, and a person skilled in the art can perform adaptive setting on the electronic whiteboard according to actual requirements.
In a further embodiment, the number of the touch slave devices is multiple, that is, the multiple touch slave devices are connected with the electronic whiteboard through the bluetooth communication module. When the electronic whiteboard receives a plurality of first bluetooth schoolbag, the analyzed plurality of touch data are sequentially implemented on the display screen of the electronic whiteboard according to the receiving sequence, for example, if a plurality of touch slave devices perform writing operation, the schoolbag tracks of the touch slave devices are displayed on the display screen according to the receiving sequence.
By using the Bluetooth-based electronic whiteboard cooperation method provided by the invention, after the electronic whiteboard receives the first Bluetooth data packet sent by the touch slave device, the touch data is obtained by analyzing, and then the touch operation on the touch slave device can be realized on the electronic whiteboard without networking or plugging lines; simultaneously to the demand of hardware not high, only need between whiteboard and the touch slave unit all have bluetooth function module can, convenient and fast.
Further, as a preferred solution, in this embodiment, referring to fig. 2 and fig. 4 to 5, the method for cooperating an electronic whiteboard based on bluetooth further includes:
s21, when the content of the display screen is refreshed, intercepting the display interface of the display screen to generate a refreshed image; the content refreshing comprises that a new writing track, an annotation and the like are generated on the electronic whiteboard, and the content refreshing source can be obtained by directly operating the electronic whiteboard or can be obtained by a first Bluetooth data packet sent by other touch slave devices.
S22, converting the refreshed image into a second Bluetooth data packet according to the Bluetooth protocol, and sending the second Bluetooth data packet to the touch slave device so that the touch slave device can display the refreshed image. In this embodiment, the bluetooth protocol is preferably an OPP protocol. And after the touch slave device analyzes the second Bluetooth data packet, the refresh image is obtained and is directly displayed on a display screen of the touch slave device.
In a further embodiment, when there are a plurality of touch slave devices connected to the electronic whiteboard, the second bluetooth packet is sent to the plurality of touch slave devices at the same time.
In the embodiment, the Bluetooth-based electronic whiteboard cooperation method provided by the invention can ensure that the new content is generated and sent to the touch slave device as long as the new content is generated on the display screen of the electronic whiteboard, so that all the content displayed on the electronic whiteboard can be seen at the touch slave device.
Further, as a preferred scheme, in the electronic whiteboard cooperation method based on bluetooth in this embodiment, the touch operation includes a track writing operation, a function operation, and an annotation operation.
Further, as a preferred scheme, in the electronic whiteboard cooperation method based on bluetooth in this embodiment, the bluetooth protocol includes an HID protocol and an OPP protocol.
The invention also provides a Bluetooth-based electronic whiteboard cooperation method, which is applied to touch slave equipment, wherein the touch slave equipment is mainly used for generating near-end distributed touch data for the electronic whiteboard, namely all touch operations can be displayed in the electronic whiteboard without direct operation of an operator on the electronic whiteboard, and internet equipment is not required to be connected or installed by using a line, so that the method is simple and rapid, and the preferred touch slave equipment is a mobile phone, a computer or electronic equipment with a Bluetooth function and a touch function.
Referring to fig. 3-5, the method for cooperating an electronic whiteboard based on bluetooth includes:
s31, responding to touch operation to obtain touch data, and generating a first Bluetooth data packet by the touch data according to a Bluetooth protocol; specifically, in this embodiment, the bluetooth protocol is an HID (Human Interface Device Profile) protocol, and the first bluetooth packet is an HID packet. If the final result of the touch operation is to send a picture or a file to the electronic whiteboard, the bluetooth protocol is preferably an OPP protocol.
S32, sending the first Bluetooth data packet to the electronic whiteboard, so as to realize touch operation on the electronic whiteboard.
By using the Bluetooth-based electronic whiteboard cooperation method provided by the invention, after the touch slave device detects the touch data (namely, the touch slave device is operated), the touch data is converted into the first Bluetooth data packet and is sent to the electronic whiteboard, so that the interactive cooperation of the electronic whiteboard is realized, only the electronic whiteboard and the touch slave device are required to be provided with the Bluetooth communication modules, and the method is convenient and fast.
Further, as a preferable scheme, in this embodiment, the method for electronic whiteboard cooperation based on bluetooth further includes:
responding to a second Bluetooth data packet sent by the electronic whiteboard, analyzing to obtain a refreshed image and displaying; and the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into the second Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed.
In the embodiment, the electronic whiteboard cooperation method based on bluetooth provided by the invention can ensure that the second bluetooth data packet generated from the new content is sent to the touch slave device as long as the new content is generated on the display screen of the electronic whiteboard, so that all the content displayed on the electronic whiteboard can be seen at the touch slave device.
Further, as a preferred scheme, in the electronic whiteboard cooperation method based on bluetooth in this embodiment, the touch operation includes a track writing operation, a function operation, and an annotation operation.
Referring to fig. 6, the present invention further provides an electronic whiteboard using the bluetooth-based electronic whiteboard cooperation method according to any one of the foregoing embodiments, including:
the first interaction module is used for receiving first Bluetooth data sent by the touch slave equipment or sending a second Bluetooth data packet to the touch slave equipment; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into a Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed; preferably, the first interaction module is a bluetooth communication module.
The first processing module is used for responding to a first Bluetooth data packet sent by the touch slave device and analyzing the first Bluetooth data packet to obtain touch data; realizing touch operation on a display screen based on the touch data; or
When the content of the display screen is refreshed, intercepting a display interface of the display screen to generate a refreshed image; and converting the refreshed image into a second Bluetooth data packet according to a Bluetooth protocol.
Referring to fig. 7, the present invention further provides a touch slave device applied to a bluetooth-based electronic whiteboard cooperation method of the touch slave device according to any of the foregoing embodiments, where the touch slave device includes:
the second interactive module is used for sending the first Bluetooth data packet to the electronic whiteboard or receiving a second Bluetooth data packet sent by the electronic whiteboard; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into a Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed; preferably, the second interaction module is a bluetooth communication module.
The second processing module is used for responding to touch operation to obtain touch data and generating a first Bluetooth data packet by the touch data according to a Bluetooth protocol; or
And analyzing the second Bluetooth data packet to obtain a refreshed image and displaying the refreshed image.
The present invention also provides a computer readable medium storing a computer program, which when executed by a processor implements any of the foregoing embodiments of the bluetooth-based electronic whiteboard cooperation method applied to an electronic whiteboard or any of the foregoing embodiments of the bluetooth-based electronic whiteboard cooperation method applied to a touch slave device.
More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. A Bluetooth-based electronic whiteboard cooperation method is applied to an electronic whiteboard, and comprises the following steps:
responding to a first Bluetooth data packet sent by the touch slave device, and analyzing to obtain touch data; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol;
and realizing touch operation on the display screen based on the touch data.
2. The method for collaboration on a Bluetooth-based electronic whiteboard as defined in claim 1, further comprising:
when the content of the display screen is refreshed, intercepting a display interface of the display screen to generate a refreshed image;
and converting the refreshed image into a second Bluetooth data packet according to a Bluetooth protocol, and sending the second Bluetooth data packet to the touch slave equipment so that the touch slave equipment displays the refreshed image.
3. The method for collaboration on an electronic whiteboard based on bluetooth as claimed in claim 1, wherein the touch operation comprises a track writing operation, a function operation, and an annotation operation.
4. The method of claim 1, wherein the bluetooth protocol comprises an HID protocol and an OPP protocol.
5. A Bluetooth-based electronic whiteboard cooperation method is applied to touch slave equipment and comprises the following steps:
responding to touch operation to obtain touch data, and generating a first Bluetooth data packet by the touch data according to a Bluetooth protocol;
and sending the first Bluetooth data packet to an electronic whiteboard so as to realize touch operation aiming at the electronic whiteboard.
6. The method for collaboration on a Bluetooth-based electronic whiteboard as defined in claim 5, further comprising:
responding to a second Bluetooth data packet sent by the electronic whiteboard, analyzing to obtain a refreshed image and displaying; and the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into the second Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed.
7. The Bluetooth-based electronic whiteboard cooperation method according to claim 5, wherein the touch operation comprises a track writing operation, a function operation and an annotation operation.
8. An electronic whiteboard according to any of claims 1 to 4, comprising:
the first interaction module is used for receiving first Bluetooth data sent by the touch slave equipment or sending a second Bluetooth data packet to the touch slave equipment; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into a Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed;
the first processing module is used for responding to a first Bluetooth data packet sent by the touch slave device and analyzing the first Bluetooth data packet to obtain touch data; realizing touch operation on a display screen based on the touch data; or
When the content of the display screen is refreshed, intercepting a display interface of the display screen to generate a refreshed image; and converting the refreshed image into a second Bluetooth data packet according to a Bluetooth protocol.
9. A touch slave device of the bluetooth-based electronic whiteboard cooperation method according to any one of claims 5 to 7, comprising:
the second interactive module is used for sending the first Bluetooth data packet to the electronic whiteboard or receiving a second Bluetooth data packet sent by the electronic whiteboard; the first Bluetooth data packet is touch data obtained by the touch slave device responding to touch operation, and the touch data is generated according to a Bluetooth protocol; the second Bluetooth data packet is generated by intercepting a display interface of the display screen to generate a refreshing image and converting the refreshing image into a Bluetooth data packet according to a Bluetooth protocol when the content of the display screen of the electronic whiteboard is refreshed;
the second processing module is used for responding to touch operation to obtain touch data and generating a first Bluetooth data packet by the touch data according to a Bluetooth protocol; or
And analyzing the second Bluetooth data packet to obtain a refreshed image and displaying the refreshed image.
10. A computer-readable medium, in which a computer program is stored, which, when being executed by a processor, implements the bluetooth-based electronic whiteboard cooperation method according to any one of claims 1 to 4 or the bluetooth-based electronic whiteboard cooperation method according to any one of claims 5 to 7.
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| CN111381790A (en) * | 2019-12-23 | 2020-07-07 | 深圳市鸿合创新信息技术有限责任公司 | Control method, device and system, electronic whiteboard and mobile terminal |
| CN212484327U (en) * | 2020-05-15 | 2021-02-05 | 杭州迈杰教育科技有限公司 | Electronic white board |
| CN112003928A (en) * | 2020-08-21 | 2020-11-27 | 深圳市康冠智能科技有限公司 | Multifunctional screen synchronous control method, device and equipment |
| CN113489938A (en) * | 2020-10-28 | 2021-10-08 | 青岛海信电子产业控股股份有限公司 | Virtual conference control method, intelligent device and terminal device |
| CN113360116A (en) * | 2021-06-25 | 2021-09-07 | 阿波罗智联(北京)科技有限公司 | Method, device and equipment for controlling terminal and storage medium |
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