CN111143056A - Electronic whiteboard display resource sharing method and system - Google Patents
Electronic whiteboard display resource sharing method and system Download PDFInfo
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- CN111143056A CN111143056A CN201911293138.4A CN201911293138A CN111143056A CN 111143056 A CN111143056 A CN 111143056A CN 201911293138 A CN201911293138 A CN 201911293138A CN 111143056 A CN111143056 A CN 111143056A
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- electronic whiteboard
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
- G06F9/5022—Mechanisms to release resources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a method and a system for sharing display resources of an electronic whiteboard, wherein the method comprises the following steps: any writing application module on the electronic whiteboard receives the starting instruction, and starts the corresponding writing application module and the corresponding client module; the client module sends a connection request to the started acceleration writing server module; the accelerated writing server module receives the connection request, allocates graphic display resources and sends a connection success message to the client module; the writing application module receives writing related instructions and sends the writing related instructions to the accelerated writing server module through the client module; and the accelerated writing server module receives the writing related instruction, executes the writing related instruction and sends the writing related instruction to the graphic display module so as to display an execution result on a hardware display interface. According to the invention, the display resource sharing can be realized by accelerating the writing server module to create the canvas paintbrush and initialize the graphic display parameters in advance, so that the writing time delay is reduced, and the writing experience of a client is improved.
Description
Technical Field
The invention relates to the technical field of electronic whiteboards, in particular to a method and a system for sharing display resources of an electronic whiteboard.
Background
Referring to fig. 1, at present, in an electronic whiteboard, there are generally more than two writing software applications, such as full-channel annotation, writing application software, third-party integrated accelerated writing software, and the like. To meet the customer writing experience and reduce writing delays, operations are typically performed directly on the graphical display frame. But each writing software is an independent process, and each graphic display resource can only be occupied by one writing software. Thus, the above-described implementation presents two problems: (1) under the condition that a certain writing software is abnormal or the display resource is not released, the other writing software fails to apply for the display resource; (2) the writing software is started each time, the display resources need to be applied, so that the frequent application easily causes resource leakage or memory fragmentation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method and a system for sharing display resources of an electronic whiteboard, which have good user experience.
The invention adopts the following technical scheme:
in one aspect, the invention provides a method for sharing display resources of an electronic whiteboard, comprising the following steps:
any writing application module on the electronic whiteboard receives the starting instruction, and starts the corresponding writing application module and the corresponding client module;
the client module sends a connection request to the started acceleration writing server module; executing a preset instruction when the accelerated writing server module is started; the preset instruction comprises creating a connection monitoring thread, creating a canvas, creating a painting brush and initializing a graphic display parameter;
the accelerated writing server module receives the connection request, allocates graphic display resources and sends a connection success message to the client module;
the writing application module receives writing related instructions and sends the writing related instructions to the accelerated writing server module through the client module;
and the accelerated writing server module receives the writing related instruction, executes the writing related instruction, and sends the writing related instruction to the graphic display module to display an execution result on a hardware display interface.
Preferably, the method further comprises:
when the writing application module exits, the client module sends a screen clearing instruction and sends a disconnection request to the accelerated writing server module;
and the accelerated writing server module receives the disconnection request, disconnects the connection with the client module and waits for the next connection request.
Preferably, when the electronic whiteboard is started, the accelerated writing server module is started.
Preferably, before the accelerating writing service end module allocates the graphic display resource, the method further includes:
and detecting whether unreleased image display resources exist or not, and if so, releasing the occupied image display resources.
Preferably, the client module and the accelerated writing server module communicate through half duplex.
On the other hand, the electronic whiteboard display resource sharing system comprises a plurality of writing application modules and a graphic display module, and further comprises a client module and an accelerated writing server module; specifically, the method comprises the following steps:
the writing application module is connected with the client module and used for receiving writing related instructions of the touch frame interface;
the client module is connected with the writing application module; when the writing application module is started, the client module is started; the system comprises a connection request sending module, a writing application module and an acceleration writing server module, wherein the connection request is sent to the started acceleration writing server module when the connection request is started, and the connection request is sent to the acceleration writing server module when a writing related instruction sent by the writing application module is received;
the accelerated writing server module is connected with the graphic display module; executing a preset instruction when starting, wherein the preset instruction comprises establishing a connection monitoring thread, establishing a canvas, establishing a painting brush and initializing a graphic display parameter; the system comprises a client module, a server module and a server module, wherein the client module is used for receiving a connection request sent by the client module, distributing graphic display resources and sending a connection success message to the client module; the writing related instruction is executed after being received and is sent to the graphic display module;
and the graphic display module is used for receiving the execution result of the writing related instruction and displaying the execution result on a hardware display interface.
Preferably, the client module is further configured to send a screen clearing instruction when the writing application module exits, and send a disconnection request to the accelerated writing server module;
the acceleration writing server-side module is also used for receiving the disconnection request, disconnecting the connection with the client-side module and waiting for the next connection request.
Preferably, when the electronic whiteboard is started, the accelerated writing server module is started.
Preferably, the accelerated writing server module is further configured to detect whether unreleased image display resources exist, and if the unreleased image display resources exist, release the occupied image display resources.
Preferably, the client module and the accelerated writing server module communicate through half duplex.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a method and a system for sharing display resources of an electronic whiteboard, wherein a client module and an accelerated writing server module are added on the basis of the prior art; the accelerated writing server module is started when the electronic whiteboard is started, and a connection monitoring thread, a canvas painting brush and an initial graphic display parameter are created when the electronic whiteboard is started; starting the client module when any writing application module is started, sending a connection request to the accelerated writing server module after the client module is started, and reallocating resources and establishing connection with the client module after the accelerated writing server module releases unreleased display resources; touch writing instructions or other instructions carried out on the writing application module can be sent to the accelerated writing server module through the client module to be executed, the accelerated writing server module does not need to repeatedly create canvas paintbrushes, initialize graphic display parameters and allocate resources, writing time delay can be reduced, and writing experience of a client is improved.
The above description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the description of the technical means more comprehensible.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is an architectural diagram of a prior art electronic whiteboard writing application;
FIG. 2 is a flow chart of a method of an embodiment of the present invention;
fig. 3 is an architecture diagram of an electronic whiteboard writing application according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 2, in one aspect, the present invention provides a method for sharing display resources of an electronic whiteboard, including:
s101, any writing application module on the electronic whiteboard receives a starting instruction, and starts a corresponding writing application module and a corresponding client module;
s102, the client module sends a connection request to the started accelerated writing server module; executing a preset instruction when the accelerated writing server module is started; the preset instruction comprises creating a connection monitoring thread, creating a canvas, creating a painting brush and initializing a graphic display parameter;
s103, the accelerated writing server module receives the connection request, allocates graphic display resources and sends a connection success message to the client module;
s104, the writing application module receives a writing related instruction and sends the writing related instruction to the accelerated writing server module through the client module;
and S105, the accelerated writing service end module receives the writing related instruction, executes the writing related instruction, and sends the writing related instruction to the graphic display module to display an execution result on a hardware display interface.
Specifically, when the electronic whiteboard is started (the electronic whiteboard operating system is started), the accelerated writing server module is started.
In the above step, the monitoring thread is used for monitoring a connection request and a disconnection request of the client module. The graphic display parameters comprise setting display parameters such as resolution, display size, color and the like. The writing related instruction comprises a touch instruction, a menu instruction or a gesture instruction and the like.
Further, the method further comprises:
when the writing application module exits, the client module sends a screen clearing instruction and sends a disconnection request to the accelerated writing server module;
and the accelerated writing server module receives the disconnection request, disconnects the connection with the client module and waits for the next connection writing application connection request.
Further, before the acceleration of the writing service module allocating the graphic display resource, the method further includes:
and detecting whether unreleased image display resources exist or not, and if so, releasing the occupied image display resources.
Specifically, the client module and the accelerated writing server module communicate through half duplex. The specific connection process can use any existing connection mode of the client and the server.
Referring to fig. 3, in another aspect, the electronic whiteboard display resource sharing system according to the present invention includes a plurality of writing application modules 201 and a graphic display module 204, and further includes a client module 202 and an accelerated writing server module 203; specifically, the method comprises the following steps:
the writing application module 201 is connected with the client module 202 and is used for receiving writing related instructions of the touch frame interface;
the client module 202 is connected with the writing application module 201; when the writing application module 201 is started, the client module 202 is started; the system is used for sending a connection request to the started accelerated writing server module 203 when starting, and sending a writing related instruction sent by the writing application module 201 to the accelerated writing server module 203 when receiving the writing related instruction;
the accelerated writing server module 203 is connected with the graphic display module 204; executing a preset instruction when starting, wherein the preset instruction comprises establishing a connection monitoring thread, establishing a canvas, establishing a painting brush and initializing a graphic display parameter; the system is configured to allocate a graphic display resource and send a connection success message to the client module 202 when receiving a connection request sent by the client module 202; the system is further configured to execute the writing related instruction after receiving the writing related instruction, and send the writing related instruction to the graphic display module 204;
the graphic display module 204 is configured to receive an execution result of the writing related instruction, and display the execution result on the touch frame interface 205.
The client module 202 is further configured to send a screen clearing instruction when the writing application module 201 exits, and send a disconnection request to the accelerated writing server module 203;
the accelerated writing service end module 203 is further configured to receive the disconnection request, disconnect the connection with the client end module 202, and wait for a next connection request.
When the electronic whiteboard is started, the accelerated writing server module 203 is started.
The accelerated writing server module 203 is further configured to detect whether an unreleased image display resource exists, and if so, release the occupied image display resource.
The client module 202 and the accelerated writing server module 203 communicate via half-duplex.
The invention relates to a method and a system for sharing display resources of an electronic whiteboard, wherein a client module and an accelerated writing server module are added on the basis of the prior art; the accelerated writing server module is started when the electronic whiteboard is started, and a connection monitoring thread, a canvas painting brush and an initial graphic display parameter are created when the electronic whiteboard is started; starting the client module when any writing application module is started, sending a connection request to the accelerated writing server module after the client module is started, and reallocating resources and establishing connection with the client module after the accelerated writing server module releases unreleased display resources; touch writing instructions or other instructions carried out on the writing application module can be sent to the accelerated writing server module through the client module to be executed, the accelerated writing server module does not need to repeatedly create canvas paintbrushes, initialize graphic display parameters and allocate resources, writing time delay can be reduced, and writing experience of a client is improved.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (10)
1. An electronic whiteboard display resource sharing method is characterized by comprising the following steps:
any writing application module on the electronic whiteboard receives the starting instruction, and starts the corresponding writing application module and the corresponding client module;
the client module sends a connection request to the started acceleration writing server module; executing a preset instruction when the accelerated writing server module is started; the preset instruction comprises creating a connection monitoring thread, creating a canvas, creating a painting brush and initializing a graphic display parameter;
the accelerated writing server module receives the connection request, allocates graphic display resources and sends a connection success message to the client module;
the writing application module receives writing related instructions and sends the writing related instructions to the accelerated writing server module through the client module;
and the accelerated writing server module receives the writing related instruction, executes the writing related instruction, and sends the writing related instruction to the graphic display module to display an execution result on a hardware display interface.
2. The electronic whiteboard display resource sharing method according to claim 1, further comprising:
when the writing application module exits, the client module sends a screen clearing instruction and sends a disconnection request to the accelerated writing server module;
and the accelerated writing server module receives the disconnection request, disconnects the connection with the client module and waits for the next connection request.
3. The electronic whiteboard display resource sharing method according to claim 1, wherein the accelerated writing server module is started when the electronic whiteboard is started.
4. The electronic whiteboard display resource sharing method according to claim 1, wherein before the accelerating the writing service module to allocate the graphic display resource, further comprising:
and detecting whether unreleased image display resources exist or not, and if so, releasing the occupied image display resources.
5. The electronic whiteboard display resource sharing method of claim 1, wherein the client module and the accelerated writing server module communicate through half-duplex.
6. An electronic whiteboard display resource sharing system comprises a plurality of writing application modules and a graphic display module, and is characterized by further comprising a client module and an accelerated writing server module; specifically, the method comprises the following steps:
the writing application module is connected with the client module and used for receiving writing related instructions of the touch frame interface;
the client module is connected with the writing application module; when the writing application module is started, the client module is started; the system comprises a connection request sending module, a writing application module and an acceleration writing server module, wherein the connection request is sent to the started acceleration writing server module when the connection request is started, and the connection request is sent to the acceleration writing server module when a writing related instruction sent by the writing application module is received;
the accelerated writing server module is connected with the graphic display module; executing a preset instruction when starting, wherein the preset instruction comprises establishing a connection monitoring thread, establishing a canvas, establishing a painting brush and initializing a graphic display parameter; the system comprises a client module, a server module and a server module, wherein the client module is used for receiving a connection request sent by the client module, distributing graphic display resources and sending a connection success message to the client module; the writing related instruction is executed after being received and is sent to the graphic display module;
and the graphic display module is used for receiving the execution result of the writing related instruction and displaying the execution result on a hardware display interface.
7. The electronic whiteboard display resource sharing system of claim 6,
the client module is also used for sending a screen clearing instruction when the writing application module exits and sending a disconnection request to the accelerated writing server module;
the acceleration writing server-side module is also used for receiving the disconnection request, disconnecting the connection with the client-side module and waiting for the next connection request.
8. The electronic whiteboard display resource sharing system of claim 1, wherein the accelerated writing server module is started when the electronic whiteboard is started.
9. The electronic whiteboard display resource sharing system of claim 1, wherein the jotting acceleration service module is further configured to detect whether there is an unreleased graphic display resource, and if so, release the occupied graphic display resource.
10. The electronic whiteboard display resource sharing method of claim 1, wherein the client module and the accelerated writing server module communicate through half-duplex.
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| CN201911293138.4A CN111143056B (en) | 2019-12-12 | 2019-12-12 | Electronic whiteboard display resource sharing method and system |
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| CN201911293138.4A CN111143056B (en) | 2019-12-12 | 2019-12-12 | Electronic whiteboard display resource sharing method and system |
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| CN102413128A (en) * | 2011-11-10 | 2012-04-11 | 青岛海信移动通信技术股份有限公司 | Method for sharing electronic whiteboard and network conference system |
| CN103281315A (en) * | 2013-05-13 | 2013-09-04 | 南昊（北京）科技有限公司 | Electronic whiteboard and interaction method thereof |
| CN108932346A (en) * | 2018-07-30 | 2018-12-04 | 江苏特思达电子科技股份有限公司 | Sharing method, device and the electronic whiteboard of electronic whiteboard content |
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| US20190289158A1 (en) * | 2018-03-19 | 2019-09-19 | Yuusuke Inoue | Information processing system, information processing apparatus, and information processing method |
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2019
- 2019-12-12 CN CN201911293138.4A patent/CN111143056B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413128A (en) * | 2011-11-10 | 2012-04-11 | 青岛海信移动通信技术股份有限公司 | Method for sharing electronic whiteboard and network conference system |
| CN103281315A (en) * | 2013-05-13 | 2013-09-04 | 南昊（北京）科技有限公司 | Electronic whiteboard and interaction method thereof |
| US20190289158A1 (en) * | 2018-03-19 | 2019-09-19 | Yuusuke Inoue | Information processing system, information processing apparatus, and information processing method |
| CN108932346A (en) * | 2018-07-30 | 2018-12-04 | 江苏特思达电子科技股份有限公司 | Sharing method, device and the electronic whiteboard of electronic whiteboard content |
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