CN109144438A - Conference communications method, apparatus, medium and equipment based on digit optical dot matrix - Google Patents
Conference communications method, apparatus, medium and equipment based on digit optical dot matrix Download PDFInfo
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- CN109144438A CN109144438A CN201710499164.7A CN201710499164A CN109144438A CN 109144438 A CN109144438 A CN 109144438A CN 201710499164 A CN201710499164 A CN 201710499164A CN 109144438 A CN109144438 A CN 109144438A
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- 239000011159 matrix material Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000003287 optical effect Effects 0.000 title abstract description 13
- 238000004590 computer program Methods 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 9
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
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Abstract
The present invention provides conference communications method, apparatus, medium and equipment based on digit optical dot matrix.In electronic meeting, user is using dot matrix digital pen by the written contents on the medium for be printed with dot pattern, the handwriting data of generation is sent to the terminal device of the user by dot matrix digital pen, so that the terminal device restores and displays user handwriting using the handwriting data.Furthermore, the handwriting data is also sent to the server-side for being connected with other user terminals equipment by the terminal device, the handwriting data is forwarded in other subscriber terminal equipments by the server-side, for other user terminals equipment utilization, the handwriting data restores and displays user handwriting.The present invention realizes the remote transmission of user handwriting, and the user for participating in electronic meeting is communicated with each other by writing realization, substantially increases remote communication efficiency.
Description
Technical Field
The invention relates to the field of computer software, in particular to a conference communication method, a conference communication device, a conference communication medium and conference communication equipment based on a digital optical dot matrix.
Background
With the development of the internet, the communication mode of people gradually develops from original face-to-face communication, letter communication and telephone communication to communication through various network products such as e-mails and instant messaging software, and the innovation of the technologies greatly improves the communication efficiency of people. With the diversification of transaction types, the communication mode is more focused and more detailed, such as: communication aiming at teaching scenes, communication of conferences and the like.
At present, teleconferencing generally utilizes conference communication software to perform video conference and voice conference. Although this video plus voice transmission mode meets the basic requirements of teleconferencing, teleconferencing in this manner is far from satisfactory for participants who want to present their ideas through paper and a pen so that others can understand their ideas more clearly.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a conference communication method, apparatus, medium and device based on digital optical lattice, which can solve the above-mentioned problems in the prior art.
In order to achieve the above and other related objects, the present invention provides a conference communication method, applied to a server communicatively connected to at least two clients, the method including: receiving handwriting data sent by one of the clients; wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen; and forwarding the handwriting data to other client sides so that other client sides can restore the user handwriting after receiving the handwriting data and display the user handwriting.
In an embodiment of the present invention, before receiving handwriting data sent by one of the clients, the method further includes: establishing a conference communication group according to an input instruction of one client, comprising: generating a unique identifier of the conference communication group and determining at least one target client participating in the conference; and sending an invitation instruction to the at least one target client to enable the at least one target client to join the conference communication group through the identification.
In an embodiment of the present invention, the handwriting data is received by means of a hypertext transfer protocol, and/or the handwriting data is forwarded to the outside by means of a message queue telemetry transfer protocol.
In an embodiment of the present invention, the handwriting data is generated and transmitted in units of user strokes; and restoring and displaying the user handwriting by taking the user stroke as a unit.
To achieve the above and other related objects, the present invention provides a conference communication device, applied to a server communicatively connected to at least two clients, the device comprising: a communication module; the communication module is configured to: receiving handwriting data sent by one of the clients; wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen; and forwarding the handwriting data to other client sides so that other client sides can restore the user handwriting after receiving the handwriting data and display the user handwriting.
In an embodiment of the present invention, the apparatus further includes: a conference communication group module; the conference communication group module is used for: before receiving handwriting data sent by one of the clients, establishing a conference communication group according to an input instruction of the one of the clients, comprising: generating a unique identifier of the conference communication group and determining at least one target client participating in the conference; and sending an invitation instruction to the at least one target client to enable the at least one target client to join the conference communication group through the identification.
In an embodiment of the present invention, the handwriting data is received by the communication module through a hypertext transfer protocol, and/or the handwriting data is forwarded by the communication module through a message queue telemetry transfer protocol.
In an embodiment of the present invention, the handwriting data is generated and transmitted in units of user strokes; and restoring and displaying the user handwriting by taking the user stroke as a unit.
In order to achieve the above and other related objects, the present invention provides a conference communication method applied to a client, including: receiving handwriting data sent by a dot matrix digital pen in communication connection with the client, restoring the handwriting data into user handwriting, and displaying the user handwriting; and/or receiving handwriting data sent by other electronic equipment (a client or a server) in communication connection with the client, restoring the handwriting data into user handwriting, and displaying the user handwriting; wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen.
To achieve the above and other related objects, the present invention provides a conference communication device, applied to a client, the device including: the communication module is used for receiving handwriting data sent by the dot matrix digital pen in communication connection with the client and/or receiving handwriting data sent by other electronic equipment (clients or servers) in communication connection with the client; wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen; the processing module is used for restoring the handwriting data into user handwriting; and the display module is used for displaying the restored user handwriting.
To achieve the above and other related objects, the present invention provides a storage medium, in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the conference communication method as described above.
To achieve the above and other related objects, the present invention provides an electronic device, comprising: a processor, a memory, and a communication module; wherein the memory is for storing a computer program; the processor is used for loading and executing the computer program to enable the electronic equipment to execute the conference communication method.
As described above, in the electronic conference, a user may use a dot matrix digital pen to write content on a medium printed with dot matrix patterns, and the dot matrix digital pen sends generated handwriting data to the terminal device of the user, so that the terminal device restores and displays the handwriting of the user by using the handwriting data. In addition, the terminal equipment also sends the handwriting data to a server connected with other user terminal equipment, and the server forwards the handwriting data to other user terminal equipment so that the other user terminal equipment can restore and display the user handwriting by using the handwriting data. The conference communication method, the conference communication device, the conference communication medium and the conference communication equipment based on the digital optical dot matrix realize the remote transmission of the handwriting of the users, so that the users participating in the electronic conference can realize mutual communication through writing, and the remote communication efficiency is greatly improved.
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Fig. 1 is a schematic diagram illustrating a conference communication system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a conference communication process according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating a conference communication scenario according to an embodiment of the present invention.
Fig. 4 is a schematic diagram illustrating a user operation process according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating a client display content according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides a technical solution for realizing mutual communication by sharing handwriting of each other in a remote electronic conference. In the remote electronic conference, the server and the client are respectively realized by software loaded on service equipment (such as a server) and terminal equipment (such as a desktop computer, a portable computer, a smart phone and the like). The server is in communication connection with a plurality of clients, wherein a user of each client completes registration in the server through the client in advance, and the server creates an account for each registered user.
After the registered user logs in the system, the remote interaction with other logged-in users is realized by establishing a conference communication group. With reference to fig. 2, the following will describe in detail the implementation process of the present invention by taking the client a and the client B that establish the teleconference connection as an example, and the conference communication group establishment process of the client a and the client B will be left to be described later.
In the meeting process, a user A writes the content (such as characters, graphs and the like) which the user A wants to express on a writing medium (such as paper, a white board and the like) paved with a dot matrix pattern by using an optical interactive intelligent pen. The dot matrix pen collects the coded information on the writing medium through parts such as an optical sensor of the dot matrix pen along with the writing operation of a user, the processor decodes the coded information to generate handwriting data, and the handwriting data is sent to a client A which is connected in advance in a Bluetooth mode and the like.
After receiving the handwriting data sent by the dot-matrix pen, the communication module 101a of the client a processes the handwriting data through the processing module 102a thereof to restore the actual handwriting of the user a and displays the actual handwriting through the display module 103 a; on the other hand, the message is sent to the server via a transmission protocol such as HTTP (hypertext transfer protocol).
After receiving the handwriting data, the communication module 201 of the server side sends the handwriting data to the client side B in a way of MQTT (message queue telemetry transport protocol) and the like.
After receiving the handwriting data, the communication module 101B of the client B processes the handwriting data through the processing module 102B thereof to restore the actual handwriting of the user a, and displays the actual handwriting through the display module 103B. Preferably, the handwriting data is generated and transmitted in units of user strokes, and at this time, the user handwriting is restored and displayed in units of user strokes.
It should be noted that the handwriting data not only includes the dot matrix coordinate values, but also includes the pressure values generated by the pressure sensor of the dot matrix pen along with the writing of the user. The present embodiment determines whether the user stroke is completely written through continuation/interruption of the pressure value.
The client A/client B acquires pen front information (such as the tone scale information, the width information and the like of the pen front) according to the received pen tip pressure information, and fits and acquires handwriting containing the pen front information according to the handwriting coordinate information and the pen front information of each sampling point.
When the dot matrix pen is used for writing, along with the increase or decrease of the pen point pressure value obtained by the pressure sensor on the pen, the color gradation, namely the color depth transparency, presented in the intelligent terminal is also increased or decreased. Specifically, the tone scale is divided into a predetermined number of gradients, each corresponding to a predetermined range of nib pressure values. And the client A/client B acquires the corresponding color gradation gradient according to the received nib pressure information, namely the color gradation information. For example, the set tone scale includes 0-100 gradient values depending on the actual pressure range of the hand. Each gradient value corresponds to a pen point pressure value interval in a preset range. And the client A/client B inquires a nib pressure value interval to which the nib pressure information belongs according to the currently received nib pressure information, and further acquires a color gradation value corresponding to the nib pressure value interval. Preferably, when the pressure value of the pen point is set to be less than a certain minimum pressure value, the opacity is 0, and the handwriting is not displayed; the pen point pressure value is more than or equal to a certain highest pressure value, and the opacity is 100 percent.
When the dot matrix pen is used for writing, the pen point pressure value obtained by the pressure sensor on the pen is increased or weakened, and the width of the pen point in the handwriting becomes thicker or thinner along with the pen point pressure value. Specifically, the initial width value of the nib and the number of nib pressure levels are set, and the nib width is calculated according to the formula, namely the nib width is equal to the initial width value of the nib plus the nib pressure value/number of nib pressure levels. For example, the initial width of the nib is set to 0.5mm according to the thickness of the general handwriting, the number of nib pressure levels is 255, that is, 0 to 255 nib pressure levels are included, and then the calculation formula of the nib width is: the handwriting thickness is 0.5+ pen point pressure value/255.
And the dot matrix pen acquires handwriting coordinate information according to the relative position information of the pen point on the medium provided with the dot matrix and transmits the handwriting coordinate information to the client A/client B. And the client A/client B acquires the handwriting containing the stroke front information by utilizing Bezier curve fitting according to the handwriting coordinate information and the stroke front information of each sampling point, so that the motion process of the pen point can be restored, and the handwriting information consistent with the writing time sequence is obtained. Specifically, the method for acquiring the handwriting containing the stroke front information by means of Bezier curve fitting according to the handwriting coordinate information and the stroke front information of each sampling point comprises the following steps:
a) taking the middle point of a connecting line of the first sampling point and the second sampling point as a first central point, taking the middle point of a connecting line of the second sampling point and the third sampling point as a second central point, taking the first center as a starting point, the second sampling point as a control point and the second central point as an end point, and obtaining a curve from the first central point to the second central point based on Bezier curve fitting according to the starting point, the control point and the end point;
b) taking the middle point of a connecting line of the third sampling point and the fourth sampling point as a third central point, taking the second central point as a starting point, taking the third sampling point as a control point and taking the third central point as an end point, and obtaining a curve between the second central point and the third central point based on Bezier curve fitting according to the starting point, the control point and the end point;
c) obtaining a curve between adjacent central points by analogy until obtaining a curve between an N-2 th central point and an N-1 th central point, wherein the Nth sampling point is the last sampling point;
d) setting the stroke information of each central point as the mean value of the stroke information of the sampling points at two ends, and connecting a connecting line between the first sampling point and the first central point, a Bezier curve between each adjacent central point and a connecting line between the N-1 st central point and the Nth sampling point based on the stroke information of the first sampling point, each central point and the Nth sampling point to form the fitted handwriting containing the stroke information.
As shown in fig. 3, when a user B writes a content (e.g., a text, a graphic, etc.) that the user B wants to express on a writing medium (e.g., paper, a whiteboard, etc.) laid with a dot pattern by using an optical interactive smart pen in a conference, the user a can see the user's handwriting from the client a through the above process, that is, the user a and the user B can realize synchronous interactive communication through the transmission of the server, and can see the user's writing content and the user's writing content in real time.
As shown in fig. 1 and 4, the server further includes a conference communication group module 202, which provides items of a newly-created conference group for the logged-in user. When a login user wants to establish a conference communication group, the client can be used for sending a new establishment request to the server, so that the server establishes a new conference communication group. Subsequently, the login user can edit the name of the conference communication group, select target contacts from the registered users, and enable the server to send invitation requests to the target contacts. At this time, if the target contact is in the non-login state, the invitation request may be sent to the target contact through other methods such as a short message, or the conference initiating user sends the invitation request to the target contact through MQTT and other forms. It should be noted that, when the server sends handwriting data to the client through MQTT, the participating user needs to complete MQTT subscription in advance. In addition, the server allocates a unique identifier for each conference communication group, and the identifier is sent to the target contact person along with the invitation request, so that the target contact person can conveniently find the conference communication group and smoothly join the conference communication group after logging in.
Fig. 5 shows a client displaying three written contents in the "poetry commentary" conference communication group. It should be noted that the conference initiating user can manage the communication process and the information of the target user; in addition, the head portrait corner of each target contact person can also display an unread message prompt, and a user can also switch among the display interfaces of a plurality of target contact persons through the client side, so that the handwriting content of each target contact person can be conveniently viewed.
In addition, the present invention further provides a storage medium and an electronic device, and the technical features in the foregoing embodiments may be applied to the storage medium embodiment and the electronic device embodiment, so that repeated descriptions are omitted.
The storage medium includes: various media capable of storing program codes, such as ROM, RAM, magnetic disk or optical disk, etc., wherein computer programs are stored, and when the computer programs are loaded and executed by a processor, all or part of the steps of the foregoing embodiments in which the server implements the conference communication function based on the digital optical dot matrix technology are implemented.
The electronic device is a computer and the like comprising a processor (CPU/MCU/SOC), a memory (ROM/RAM), a communication module (wired/wireless network) and other components, wherein a computer program is stored in the memory, and when the processor loads and executes the computer program, all or part of steps of the conference communication function realized by the server based on the digital optical lattice technology in the embodiment are realized.
In summary, the invention receives the handwriting coordinate data transmitted by the smart pen, and the original handwriting content consistent with the original handwriting content on the paper is displayed on the electronic terminal device after analysis and processing, and meanwhile, the handwriting content is also transmitted to the electronic terminal of the contacted person through the server, and similarly, the contacted person can also write on the electronic terminal by using the optical interactive smart pen and is transmitted to the electronic terminal of the contacted person through the server, thereby realizing synchronous interactive communication between the two parties. Compared with the existing mouse, the writing medium has good writing sense and good maneuverability, ensures the normal writing environment of the user as much as possible, realizes the real-time synchronization of notes in a meeting and greatly improves the user experience. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A conference communication method, applied to a server communicatively connected to at least two clients, the method comprising:
receiving handwriting data sent by one of the clients; wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen;
and forwarding the handwriting data to other client sides so that other client sides can restore the user handwriting after receiving the handwriting data and display the user handwriting.
2. The conference communication method as claimed in claim 1, wherein before receiving handwriting data sent by one of the clients, the method further comprises:
establishing a conference communication group according to an input instruction of one client, comprising: generating a unique identifier of the conference communication group and determining at least one target client participating in the conference;
and sending an invitation instruction to the at least one target client to enable the at least one target client to join the conference communication group through the identification.
3. The conference communication method as claimed in claim 1, wherein the handwriting data is received by means of hypertext transfer protocol and/or the handwriting data is forwarded out by means of message queue telemetry transfer protocol.
4. A conference communication apparatus, applied to a server communicatively connected to at least two clients, the apparatus comprising: a communication module; the communication module is configured to:
receiving handwriting data sent by one of the clients; wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen;
and forwarding the handwriting data to other client sides so that other client sides can restore the user handwriting after receiving the handwriting data and display the user handwriting.
5. The conference communication device as claimed in claim 4, further comprising: a conference communication group module; the conference communication group module is used for:
before receiving handwriting data sent by one of the clients, establishing a conference communication group according to an input instruction of the one of the clients, comprising: generating a unique identifier of the conference communication group and determining at least one target client participating in the conference;
and sending an invitation instruction to the at least one target client to enable the at least one target client to join the conference communication group through the identification.
6. The conferencing communication device of claim 4, wherein the communication module receives the handwriting data via a hypertext transfer protocol and/or wherein the communication module forwards the handwriting data via a message queue telemetry transfer protocol.
7. A conference communication method is applied to a client, and the method comprises the following steps:
receiving handwriting data sent by a dot matrix digital pen in communication connection with the client, restoring the handwriting data into user handwriting, and displaying the user handwriting; and/or
Receiving handwriting data sent by a server side in communication connection with the client side, restoring the handwriting data into user handwriting, and displaying the user handwriting;
wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen.
8. A conference communication apparatus, applied to a client, the apparatus comprising:
the communication module is used for receiving handwriting data sent by a dot matrix digital pen in communication connection with the client and/or receiving handwriting data sent by a server in communication connection with the client; wherein, the handwriting data is generated by writing on a writing medium printed with a dot matrix pattern by a dot matrix digital pen;
the processing module is used for restoring the handwriting data into user handwriting;
and the display module is used for displaying the restored user handwriting.
9. A storage medium in which a computer program is stored, which, when loaded and executed by a processor, carries out a conference communication method as claimed in any one of claims 1 to 3, or carries out a conference communication method as claimed in claim 7.
10. An electronic device, comprising: a processor, a memory, and a communication module; wherein,
the memory is used for storing a computer program;
the processor is configured to load and execute the computer program to enable the electronic device to execute the conference communication method according to any one of claims 1 to 3 or implement the conference communication method according to claim 7.
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| CN201710499164.7A CN109144438A (en) | 2017-06-27 | 2017-06-27 | Conference communications method, apparatus, medium and equipment based on digit optical dot matrix |
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| CN201710499164.7A CN109144438A (en) | 2017-06-27 | 2017-06-27 | Conference communications method, apparatus, medium and equipment based on digit optical dot matrix |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110990535A (en) * | 2019-12-04 | 2020-04-10 | 广州云蝶科技有限公司 | Method for recording meeting based on dot matrix paper pen technology |
| CN112699977A (en) * | 2020-12-28 | 2021-04-23 | 贵州链云科技有限公司 | Intelligent acquisition system and acquisition method for handwriting records of railway vehicle |
| CN112799626A (en) * | 2021-02-07 | 2021-05-14 | 深圳柔果信息科技有限公司 | Multi-screen remote real-time writing and presenting method |
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| CN106527940A (en) * | 2016-11-03 | 2017-03-22 | 青岛海信电器股份有限公司 | Handwriting determination method and apparatus |
| CN106775060A (en) * | 2016-11-23 | 2017-05-31 | 广州视源电子科技股份有限公司 | Method and device for remotely and synchronously writing and displaying |
| CN106454206A (en) * | 2016-11-28 | 2017-02-22 | 广州视源电子科技股份有限公司 | Conference access method and device |
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| CN110990535B (en) * | 2019-12-04 | 2023-06-09 | 广州云蝶科技有限公司 | Conference recording method based on dot matrix paper pen technology |
| CN112699977A (en) * | 2020-12-28 | 2021-04-23 | 贵州链云科技有限公司 | Intelligent acquisition system and acquisition method for handwriting records of railway vehicle |
| CN112799626A (en) * | 2021-02-07 | 2021-05-14 | 深圳柔果信息科技有限公司 | Multi-screen remote real-time writing and presenting method |
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