CN112558905B - Screen projection method, device and system - Google Patents
Screen projection method, device and system Download PDFInfo
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- CN112558905B CN112558905B CN202011449828.7A CN202011449828A CN112558905B CN 112558905 B CN112558905 B CN 112558905B CN 202011449828 A CN202011449828 A CN 202011449828A CN 112558905 B CN112558905 B CN 112558905B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims 2
- 238000012216 screening Methods 0.000 claims 2
- 230000004044 response Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000006399 behavior Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 244000141359 Malus pumila Species 0.000 description 1
- 235000021016 apples Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- 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
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
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- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention relates to the technical field of screen projection, and discloses a screen projection method, equipment and a system. When receiving screen-throwing request data, the method judges whether to multiplex the cached screen-throwing page according to the media type in the request data; and under the condition that the cached screen-throwing page can be reused, judging the state of the screen-throwing page, and if the screen-throwing page is in an available state, replacing the configuration parameters of the screen-throwing page by using corresponding change parameters in the screen-throwing request data. According to the method, partial configuration parameter updating is carried out on the screen throwing data based on a recycling principle, the whole updating is not needed during page display, the tedious processes of releasing the cache screen throwing resources, destroying the cache screen throwing pages, acquiring new resources, reconstructing the new pages and the like during screen throwing again are avoided, the occupation of a system is reduced, the time is saved, the response time of the screen throwing terminal equipment is shortened, and the experience of a user is enhanced.
Description
Technical Field
The invention belongs to the technical field of equipment projection, and particularly relates to a screen projection method, equipment and a system based on page reuse and short response time.
Background
With the increasing requirements of vast users on large-screen demonstration, projection screen demonstration, business consultation demonstration and mobile demonstration, a plurality of mainstream liquid crystal large-screen manufacturers, touch integrated machine manufacturers and projection merchants start to carry wireless projection screen functions on the under-flag products, so that multi-screen interaction between the liquid crystal large-screen and touch integrated machines and various brands of projectors and equipment such as PC computers, IPAD apples, tablet computers and smart phones is realized, and the purposes of wireless sharing and co-collaboration are achieved. The wireless screen-throwing technology is to throw the picture of the front-end equipment needing to be screened into the screened terminal equipment for display.
Because the screen-throwing environment is changeable, the number of users is numerous, and the like, when the screen-throwing device is throwing the screen and playing, another screen-throwing event request is received when the screen-throwing device is throwing the screen and playing frequently occurs, at this time, the current screen-throwing operation needs to be stopped, resources such as a player are released, and new screen-throwing content is responded and displayed. Before responding to the new screen throwing content, the buffer storage screen throwing resources are required to be released, the buffer storage screen throwing pages are destroyed, the new screen throwing resources are acquired, and the new pages are rebuilt, and the operations are required to occupy the system resources to be executed, so that the screen throwing response time of the screen throwing equipment is influenced, and the user experience is poor.
Disclosure of Invention
The invention provides a screen projection method, equipment and a system based on page recycling and short response time, which are used for solving the problem of long response time caused by the system resources occupied by releasing a cache screen projection resource, destroying the cache screen projection page, acquiring new resources and reconstructing the new page when receiving another screen projection event request in the existing screen projection technology.
The invention is realized by the following technical scheme:
the screen projection method is used in the terminal equipment to be projected, and comprises the following steps:
receiving the screen throwing request data, judging whether to multiplex the cached screen throwing page according to the media type in the request data,
judging the state of the screen throwing page under the condition that the cached screen throwing page can be reused, if the screen throwing page is in the available state, replacing the configuration parameters of the screen throwing page by using the corresponding change parameters in the screen throwing request data,
and performing screen projection display on the page after the configuration parameters are updated.
The screen throwing terminal equipment receives a screen throwing request in a screen throwing state, the scheme judges whether the cached screen throwing page can be reused or not through the media type in the screen throwing request data, and if the media type in the screen throwing request is the same as the media type of the cached screen throwing page, part of configuration parameters of the cached screen throwing page are considered to be reused. The cached screen page may be in various states, such as ready to be created, in creation, complete creation, ready to be destroyed, etc., some states indicating that the cached screen page is in an unavailable state and some states indicating that the cached screen page is in an available state. If the cached screen-throwing page is available and the media types in the cached screen-throwing page and the screen-throwing request data are the same, the configuration parameters of the screen throwing of the time can adopt partial configuration parameters of the screen throwing of the cached screen-throwing, the configuration parameters of the cached screen-throwing page are directly replaced by corresponding variation parameters in the screen-throwing request data, and the unchanged part of the configuration parameters of the cached screen-throwing page is reserved. The scheme is based on the principle of repeated utilization, partial configuration parameter updating is carried out on the screen throwing data, all updating is not needed during page display, the tedious processes of releasing the screen throwing resources of the cache, destroying the screen throwing pages of the cache, acquiring new resources, reconstructing new pages and the like during screen throwing again are avoided, system occupation is reduced, time is saved, response time of the screen throwing terminal equipment is shortened, and experience of a user is enhanced.
As a first preferred mode of the scheme, the configuration parameters of the screen-throwing page comprise one or more of a screen-throwing type, a protocol, a media type, a device name, front-end device information, a screen-throwing behavior processing type, a link and an action identifier.
On the basis of the first preferred scheme, the corresponding change parameters comprise one or more of front-end equipment information, links and action identifiers.
In addition to the scheme, the method further comprises a screen throwing page starting operation, wherein the screen throwing page starting operation comprises the following steps:
acquiring an initial screen throwing request, and judging whether a screen throwing page exists at present;
and if the screen throwing page does not exist currently, starting the screen throwing page.
A screen projection device, comprising:
the data acquisition module is used for acquiring screen throwing request data information;
a parameter configuration module for configuring screen projection parameters according to the screen projection data information;
the storage module is used for caching the screen throwing page information;
a screen throwing page matching module for matching the cached screen throwing page according to the media type in the screen throwing request data;
the page state judging module judges the matched cache screen-throwing page state;
the parameter updating module is used for updating the matched configuration parameters of the available cache screen-throwing page;
and the playing module is used for carrying out data display according to the page configuration parameters.
The data acquisition module of the screen throwing device is used for receiving screen throwing request data of the front-end device, after receiving the request, the screen throwing page matching module judges whether the cache screen throwing pages of the same type exist in the storage module according to the media type in the screen throwing request data, if yes, the further page state judging module judges whether the screen throwing pages are available, if the cached screen throwing pages are in an available state, the parameter updating module updates the configuration parameters of the cached matched screen throwing pages according to the data of the screen throwing request, and the playing module performs page display according to the updated configuration parameters. The screen throwing equipment repeatedly utilizes the parameters of the screen throwing part, does not need to be updated completely when the page is displayed, avoids the tedious processes of releasing the screen throwing resources of the buffer memory, destroying the screen throwing pages of the buffer memory, acquiring new resources, reconstructing new pages and the like when the screen is thrown again, reduces the occupation of the system, saves time, shortens the response time of the terminal equipment which is thrown, and enhances the experience of users.
A screen projection device, comprising:
the data acquisition module is used for acquiring screen throwing request data information;
the storage module is used for caching the screen throwing page information and the instruction information;
the signal processing unit is used for calling an instruction to execute the screen projection method;
and the playing module is used for carrying out data display according to the page configuration parameters.
The data acquisition module of the screen throwing device is used for receiving a screen throwing data request of the front-end device, after receiving the request, the signal processing unit configures page parameters according to the screen throwing method and then drives the playing module to carry out screen throwing display.
A screen projection system comprises any one of the screen projection devices and front-end equipment for sending screen projection request data to the screen projection device.
Compared with the prior art, the invention has at least the following advantages and beneficial effects:
according to the scheme, partial configuration parameter updating is carried out on the screen throwing data based on a recycling principle, the whole updating is not needed during page display, the tedious processes of releasing the cache screen throwing resources, destroying the cache screen throwing pages, acquiring new resources, reconstructing the new pages and the like during screen throwing again are avoided, the occupation of a system is reduced, the time is saved, the response time of the screen throwing terminal equipment is shortened, and the experience of a user is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a network architecture diagram of the present system.
Fig. 2 is a flow chart of the method of the present invention.
Fig. 3 is a flowchart of one embodiment of the present invention.
Fig. 4 is a schematic diagram of a structure of the screen projection apparatus.
Fig. 5 is another schematic structural view of the screen projection apparatus.
Detailed Description
The invention will be further elucidated with reference to the drawings and to specific embodiments. The present invention is not limited to these examples, although they are described in order to assist understanding of the present invention. Specific structural and functional details disclosed herein are merely representative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.
It should be understood that for the term "and/or" that may appear herein, it is merely one association relationship that describes an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a alone, B alone, and both a and B; for the term "/and" that may appear herein, which is descriptive of another associative object relationship, it means that there may be two relationships, e.g., a/and B, it may be expressed that: a alone, a alone and B alone; in addition, for the character "/" that may appear herein, it is generally indicated that the context associated object is an "or" relationship.
It will be understood that when an element is referred to herein as being "connected," "connected," or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to herein as being "directly connected" or "directly coupled" to another element, it means that there are no intervening elements present. In addition, other words used to describe relationships between elements (e.g., "between … …" pair "directly between … …", "adjacent" pair "directly adjacent", etc.) should be interpreted in a similar manner.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," "including" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, and do not preclude the presence or addition of one or more other features, quantities, steps, operations, elements, components, and/or groups thereof.
It should be appreciated that in some alternative designs, the functions/acts noted may occur out of the order in which the figures appear. For example, two figures shown in succession may in fact be executed substantially concurrently or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
It should be understood that specific details are provided in the following description to provide a thorough understanding of the example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, a system may be shown in block diagrams in order to avoid obscuring the examples with unnecessary detail. In other instances, well-known processes, structures, and techniques may be shown without unnecessary detail in order to avoid obscuring the example embodiments.
Example 1
As shown in fig. 1, the network architecture of the present screen projection system is shown, which includes a front-end device 1 that needs to project a screen and a terminal device 2 that is projected a screen. The front-end equipment 1 is used as a sender of the screen projection request, and the screen projection equipment is used as a receiver and an executive party of the screen projection request.
Specifically, the method for projecting a screen disclosed in this embodiment is used in the terminal device 2 to be projected, and specifically, referring to fig. 2, the method includes the following steps:
receiving the screen projection request data of the front-end equipment 1, judging whether to multiplex the screen projection page of the cache according to the media type in the request data,
judging the state of the screen throwing page under the condition that the cached screen throwing page can be reused, if the screen throwing page is in the available state, replacing the configuration parameters of the screen throwing page by using the corresponding change parameters in the screen throwing request data,
and performing screen projection display on the page after the configuration parameters are updated.
Example 2
Based on the principles of the foregoing embodiments, this embodiment discloses a specific implementation manner, and the specific method is also applied to the terminal device 2 to be screened, where the terminal device 2 to be screened may be a relatively large-screen device such as a computer, a tablet, a large-screen display, a vehicle-mounted display terminal, or a advertisement display terminal.
The screen throwing process of the terminal equipment sequentially comprises screen throwing page starting, screen throwing display and screen throwing page switching, and the method is described with reference to fig. 3.
The front-end equipment is in signal connection with the terminal equipment, and when the front-end equipment sends a screen throwing request to the terminal equipment for the first time, the specific operation of the terminal equipment is as follows:
the terminal equipment receives an initial screen-throwing request signal and judges whether a screen-throwing page is active or not;
if the screen throwing page does not exist currently, the screen throwing page is started, the screen throwing page is configured according to the initial screen throwing request, then screen throwing display is performed, and the configured parameters can comprise one or more of screen throwing type, protocol, media type, equipment name, front-end equipment information, screen throwing behavior processing type, link and action identifier according to the situation.
When the front-end equipment sends a screen projection request to the terminal equipment again, the terminal equipment receives a new screen projection request, and the specific operation is as follows:
the terminal equipment receives new screen throwing request data, and judges whether a screen throwing page is active or not at present, and at the moment, the screen throwing page is present;
and judging whether to multiplex the cached screen-throwing page according to the media type in the new screen-throwing request data, wherein the cached screen-throwing page can be the current screen-throwing page.
If the media type in the screen-throwing request data is the same as the media type of the cached screen-throwing page, for example, the media type in the screen-throwing request data is music, video or picture, and the cached screen-throwing page has the music, video or picture, the cached screen-throwing page is taken as an alternative. And judging the page state of the alternative screen-throwing page, if the page is in an available state such as preparation for creation, in-creation, completion of creation and the like, updating corresponding parameters of the cached screen-throwing page by one or more data of front-end equipment information, links and action identifiers in the new screen-throwing request data to generate new screen-throwing configuration parameters, and carrying out screen-throwing page switching display according to the updated screen-throwing configuration parameters. If the media type in the screen throwing request data is different from the media type of the screen throwing page of the cache, for example, the media type in the screen throwing request data is music, the video in the screen throwing page of the cache or the matched cache page is in an unavailable state, the parameter configuration of the screen throwing page is carried out according to the screen throwing request data, and similarly, the parameter to be configured at the time can comprise one or more of the screen throwing type, the protocol, the media type, the equipment name, the front-end equipment information, the screen throwing behavior processing type, the link and the action identifier according to the situation, and then the screen throwing page is switched and displayed according to the prior method.
Example 3
The screen projection device, i.e., the terminal device in embodiments 1 and 2, can be matched with a front-end device to form a system for use, as shown in fig. 4, and includes a data acquisition module, a parameter configuration module, a storage module, a screen projection page matching module, a page status judging module, a parameter updating module, and a playing module. The data acquisition module acquires screen throwing request information of the front-end equipment through a network, and the screen throwing request information can be a signal receiving module such as a wifi module, a Bluetooth module, a LoRa module and the like; the parameter configuration module configures screen throwing parameters according to the screen throwing request data, and the parameter configuration module can act when the screen throwing request data is received for the first time or can act when the screen throwing request data is received later; the storage module caches the screen throwing page information, and the storage module generally adopts cache, and of course, the screen throwing page information can also be realized by adopting other memories; the screen throwing page matching module matches the cached screen throwing page according to the media type in the screen throwing request data, and the media type of the screen throwing page stored in the storage module is matched with the media type in the screen throwing request data if the media type is the same; the page state judging module reads the state of the matched cache screen-throwing page so as to judge whether the matched cache screen-throwing page can be reused or not; if the status of the cached screen-throwing page of the same media type is available, the parameter updating module updates the matched configuration parameters of the screen-throwing page of the available cache; the playing module performs data display according to the page configuration parameters, and a large-screen display is adopted.
Based on the structure, a start-stop judging module can be additionally arranged, the start-stop judging module judges the start-stop state of the current screen, and judgment information is sent to the subsequent module units.
Example 4
The screen throwing equipment, namely the terminal equipment in the embodiments 1 and 2, can be matched with front-end equipment to form a system for use, and can be realized by attaching to the existing large-screen intelligent equipment. Specifically, as shown in fig. 5, the system comprises a data acquisition module, a storage module, a signal processing unit and a playing module, and the data acquisition module acquires screen-throwing request information of front-end equipment through a network, wherein the data acquisition module can be a signal receiving module such as a wifi module, a bluetooth module, a LoRa module and the like; the storage module caches the screen-throwing page information and executes the instructions of the screen-throwing method in the embodiment 1 or 2; the playing module performs data display according to the page configuration parameters, and a large screen display is adopted, and the signal processing unit, namely a central processing unit of the intelligent device, invokes instructions in the storage device to execute the screen throwing method in the embodiment 1 or 2, and controls the playing module to realize screen throwing.
The embodiments described above are merely illustrative and may or may not be physically separate if reference is made to the unit being described as a separate component; if a component is referred to as being a unit, it may or may not be a physical unit, may be located in one place, or may be distributed over multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Finally, it should be noted that the invention is not limited to the alternative embodiments described above, but can be used by anyone in various other forms of products in the light of the present invention. The above detailed description should not be construed as limiting the scope of the invention, which is defined in the claims and the description may be used to interpret the claims.
Claims (9)
1. The screen projection method is characterized by being applied to the terminal equipment to be projected, and comprises the following steps:
receiving the screen throwing request data, judging whether to multiplex the cached screen throwing page according to the media type in the request data,
judging the state of the screen throwing page under the condition that the cached screen throwing page can be reused, if the screen throwing page is in the available state, replacing the configuration parameters of the screen throwing page by using the corresponding change parameters in the screen throwing request data,
performing screen-casting display on the page after the configuration parameters are updated;
judging whether to multiplex the cached screen throwing page according to the media type in the screen throwing request data, wherein the method comprises the following steps: and judging whether any media type in the screen throwing request data is the same as the cached screen throwing page media type.
2. The method according to claim 1, wherein the configuration parameters of the screen-throwing page include one or more of screen-throwing type, protocol, media type, device name, front-end device information, screen-throwing behavior processing type, link, and action identifier.
3. A method of screening according to claim 2, wherein the corresponding change parameters include one or more of front-end equipment information, links, action identifiers.
4. The method of claim 1, further comprising a screen page launch operation, the screen page launch comprising the steps of:
acquiring an initial screen throwing request, and judging whether a screen throwing page exists at present;
and if the screen throwing page does not exist currently, starting the screen throwing page.
5. The method of screening according to claim 1, further comprising:
and if the cached screen-throwing page is not reusable, carrying out screen-throwing parameter configuration again.
6. A screen projection device, comprising:
the data acquisition module is used for acquiring screen throwing request data information;
a parameter configuration module for configuring screen projection parameters according to the screen projection data information;
the storage module is used for caching the screen throwing page information;
a screen throwing page matching module for matching the cached screen throwing page according to the media type in the screen throwing request data;
the page state judging module judges the matched cache screen-throwing page state;
the parameter updating module is used for updating the matched configuration parameters of the available cache screen-throwing page;
and the playing module is used for carrying out data display according to the page configuration parameters.
7. The screen projection device of claim 6, further comprising
And a start-stop judging module for judging the current screen-throwing start state.
8. A screen projection device, comprising:
the data acquisition module is used for acquiring screen throwing request data information;
the storage module is used for caching the screen throwing page information and the instruction information;
a signal processing unit for invoking instructions to perform the screen casting method as claimed in claims 1-5;
and the playing module is used for carrying out data display according to the page configuration parameters.
9. A screen projection system comprising a screen projection device as claimed in any one of claims 6 to 7 and a head-end device for transmitting screen projection request data to the screen projection device.
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| CN110784830A (en) * | 2019-09-18 | 2020-02-11 | 华为技术有限公司 | Data processing method, Bluetooth module, electronic device and readable storage medium |
| CN110740363A (en) * | 2019-10-25 | 2020-01-31 | 华为终端有限公司 | Screen projection method and system and electronic equipment |
| CN111432070A (en) * | 2020-03-17 | 2020-07-17 | 北京百度网讯科技有限公司 | Application screen projection control method, device, equipment and medium |
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