CN100517052C - Wireless projection method and system and apparatus thereof - Google Patents
Wireless projection method and system and apparatus thereof Download PDFInfo
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- CN100517052C CN100517052C CNB2005101329515A CN200510132951A CN100517052C CN 100517052 C CN100517052 C CN 100517052C CN B2005101329515 A CNB2005101329515 A CN B2005101329515A CN 200510132951 A CN200510132951 A CN 200510132951A CN 100517052 C CN100517052 C CN 100517052C
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Abstract
The invention discloses a wireless projecting method that includes following steps: the signal source linked list is formed when starting the wireless projecting device, the nodes of the signal source represent the corresponding signal source; the signal sources in linked list are divided into active signal source and positive signal source by the wireless projecting device; the projecting content corresponding with the active signal source is projecting output; when new data processing device requests the wireless projection, the wireless connection is built between the wireless projecting device and the data processing device, and new nodes of wireless signal source is added in the said signal source linked list; when data processing device terminates the wireless projection, the wireless connection is broken between the wireless projecting device and the data processing device, and the corresponding nodes of wireless signal source is removed from the said signal source linked list; when receives the signal switching commands, the state of signal source in the liked list is changed by the wireless projecting device. The invention also discloses a wireless projecting system and wireless projecting device.
Description
Technical field
The present invention relates to the wireless messages transmission technology, especially relate to a kind of wireless display method and system and wireless display device thereof.
Background technology
Along with the continuous progress of society and science and technology, the wireless display technology is constantly development thereupon also, and this mainly has benefited from the promotion that is produced of popularizing of being extensive use of of data processing equipment such as notebook and wireless network.Equally, the wireless display device also obtains application more and more widely.
At present, the process of wireless display comprises: data processing equipments such as notebook are set up wireless network with the wireless display device and are connected by wireless display software, and project content is sent to projection arrangement realization projection wirelessly.
A kind of wireless display system of prior art can bring in file between operation projector and the notebook computer by a portable terminal and send and receive, also can send reception simultaneously by the file that a plurality of portable terminals are brought between operation projector and a plurality of notebook computer, when the wireless display system brought in file between operation projector and a plurality of notebook computer and sends reception by a plurality of portable terminals, projector was cut apart the data for projection that module will come from a plurality of notebook computers by projected picture and is carried out projection side by side.
But existing this wireless display system can only support the notebook computer of fixed number to carry out wireless display, and can not dynamically increase according to user's needs or delete notebook computer and carry out wireless display.
In view of this, need provide a kind of novel wireless display method and system and wireless display device thereof.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of wireless display method and system and wireless display device thereof, can accept the wireless display from a plurality of data processing equipments simultaneously, and switching is more convenient.
For this reason, the technical scheme of technical solution problem of the present invention is: a kind of wireless display method is provided, comprises step:
1) the wireless display device generates the signal source chained list when starting, the signal source of the wireless display device that wherein each signal source node representative is corresponding with it;
2) the wireless display device is divided into active signal source and non-active signal source with the state area of the signal source in the signal source chained list; And the pairing project content in active signal source is carried out projection output;
3) when new data processing equipment request wireless display, set up the wireless connections between wireless display device and this data processing equipment, and in aforementioned signal source chained list, increase new wireless signal source node;
4) when the wireless display of data processing equipment stops, the wireless connections between disconnection of wireless projection arrangement and this data processing equipment, and deletion and its corresponding wireless signal source node in aforementioned signal source chained list;
5) when receiving the signal source switching command, the wireless display device is changed the state of the signal source of the correspondence in the signal source chained list.
Preferably, described step 2) in, when there are when a plurality of a plurality of project content that this wireless display device output is corresponding with it in the active signal source in the described signal source chained list.
Preferably, described step 2) in, the data processing equipment of described active signal source correspondence transmits project content with the required speed of wireless display device; Comprise that also the wireless display device transmits user's operational order to the data processing equipment of active signal source correspondence.
Preferably, described step 2) in, the data processing equipment of described non-active signal source correspondence transmits project content or does not transmit project content to wireless display device low speed; And the wireless display device does not transmit user's operational order to the data processing equipment of non-active signal source correspondence.
Preferably, in the described step 3), comprise also that when current it is non-active signal source that this new signal source then is set when having the active signal source; When not having the active signal source, it is the active signal source that this new signal source then is set when current.
Preferably, also comprise: wireless display device meeting timing or not timing ground send signal to all data processing equipments in wireless display, to the state of described data processing equipment announcement self; When data processing equipment did not receive status information from the wireless display device in the given time, then data processing equipment stopped current wireless display task attempting connecting the unsuccessful back of projector.
Preferably, also comprise: data processing equipment meeting timing or not timing ground in wireless display send signal to announce the state of self to the wireless display device that is connected; When the projection arrangement schedule time was not received status information from certain data processing equipment, then projection arrangement stopped and being connected and the corresponding wireless signal source is deleted from the signal source chained list of this data processing equipment attempting connecting the unsuccessful back of this data processing equipment.
The present invention also provides a kind of wireless display device, includes line projection's interface, radio network interface, and user input unit is used for by the wireless connections unit of radio network interface realization with the wireless connections of data processing equipment; Also comprise:
Signal source linked list maintenance unit is used to safeguard the signal source chained list in the wireless display device, comprises that the state of determining the signal source node is active signal source or non-active signal source, newly-increased signal source node, erasure signal source node;
Projection display unit is used for the project content of active signal source correspondence is shown.
Preferably, also comprise the status signal processing unit, be used for regularly or irregularly handling status information from data processing equipment.
The present invention also provides a kind of wireless display system, comprises a plurality of data processing equipments, also comprises aforesaid wireless display device; Connect by wireless network between wireless display device and the data processing equipment, thereby wirelessly the displaying contents of data processing equipment is projected.
With respect to prior art, the invention has the beneficial effects as follows: because the present invention sets up in the wireless display device and maintenance signal source chained list; State according to the signal source in the signal source chained list is the output that movable also right and wrong activity realizes project content, therefore can realize the switching of the project content between the data processing equipment easily, its simple to operation and high efficiency.
In the preferred version of the present invention, further the state according to signal source comes the speed of specified data treatment facility transmission project content and whether transmits user's operational order to data processing equipment, therefore can more effectively realize the utilization of resource.
In the preferred version of the present invention, further mutual circular state between projection arrangement and data processing equipment can be realized the management of projection task better under the situation that need not user's intervention.
Description of drawings
Fig. 1 is the applied environment synoptic diagram of wireless display method of the present invention;
Fig. 2 is the synoptic diagram of the signal source chained list safeguarded in the wireless display device of the present invention;
Fig. 3 is the synoptic diagram of newly-increased signal source node in the wireless display method of the present invention;
Fig. 4 is the synoptic diagram of erasure signal source node in the wireless display method of the present invention;
Fig. 5 is the synoptic diagram of newly-increased wireless display process in the wireless display method of the present invention;
Fig. 6 is the synoptic diagram that finishes the wireless display process in the wireless display method of the present invention;
Fig. 7 is the block diagram of wireless display of the present invention system;
Fig. 8 is the synoptic diagram of an embodiment of wireless display device of the present invention.
Embodiment
Seeing also Fig. 1, is the applied environment synoptic diagram of wireless display method of the present invention.
Set up connection by wireless network between wireless display device 100 and a plurality of data processing equipment 200, and realize the transmission of data by wireless network.
See also Fig. 2, among the present invention, in wireless display device 100, set up and safeguard a signal source chained list.
Described signal source chained list is the chained list of a dynamic change, and its initial value is whole wire signals source of optical projection system, as VGA, component vide, composite video etc.
Set up wireless connections as new data processing equipment 200 and wireless display device 100, when carrying out wireless display, add a new wireless signal source node at this signal source chained list, then expression has the wireless display of each new access to join in the wireless display system.
As shown in Figure 3, when increasing a wireless display newly, in the signal source chained list, add new wireless signal source node " radio signal source A ".
And be connected as certain data processing equipment 200 and projection arrangement 100 disconnections, when no longer carrying out wireless display, then from the signal source chained list, delete and this wireless display corresponding wireless signal source node that leaves.
As shown in Figure 4, when having a wireless display to leave, will from the signal source chained list, delete with its corresponding wireless signal source node " radio signal source i ".
Among the present invention, have two kinds of classification in the signal source chained list: the current signal source that is projected demonstration is called the signal source of activity (Active); The signal source that currently be not projected demonstration, is in the backstage is called the signal source of non-activity (Inactive).
Need to prove that when functions such as use picture-in-picture or projected picture fractionation, movable signal source may be above one.
Wireless display method of the present invention comprises newly-increased wireless display, the processing that finishes wireless display, wireless display, signal source switching, state circular etc.
Seeing also Fig. 5, is the process flow diagram of newly-increased wireless display process in the wireless display method of the present invention.
Step S510, projection arrangement starts.
Step S520, projection arrangement generates the signal source chained list, only comprises wired signal source this moment.
Step S530, wireless display is carried out in the data processing equipment request.
Step S540 sets up the wireless connections between projection arrangement and the data processing equipment.
Step S550 increases a wireless signal source node in the signal source chained list of projection arrangement.
Step S560 waits for new wireless display request.
Whether step S570 has new wireless display request; If then return step S530; If not, then return step S560.
In addition, when adding new radio signal source, if current do not have other wired or wireless signal sources being projected demonstration, this radio signal source will be projected automatically and show (that is, becoming movable signal source); If current existing other signal source is being projected demonstration, this radio signal source will be not by Projection Display automatically come out (that is, being positioned at the backstage) as inactive signal source.
Seeing also Fig. 6, is the process flow diagram that finishes the wireless display process in the wireless display method of the present invention.
Step S610, data processing equipment finish current wireless projection task.
Step S620 disconnects projection arrangement and is connected with wireless network between the data processing equipment.
Step S630, deletion and this wireless display task corresponding wireless signal source node in the signal source chained list.
Step S640 waits for the request of new termination wireless display.
Whether step S650 has the request of new termination wireless display; If then return step S610; If not, then return step S640.
In wireless display method of the present invention, when a radio signal source is projected when showing, the speed (for example at full speed) that its corresponding data processing equipment will adopt the wireless display device to need transmits the content that needs projection to the wireless display device, and acceptance responds user's operational order from the message of wireless display device.Wherein, user's operational order is by the input block of wireless display device, for example input such as mouse and keyboard; User's operational order comprises that mouse moves, page turning instructions such as (PgUp/PgDn), and this does not give unnecessary details.
When a radio signal source is non-active signal source, then its corresponding data processing equipment only transmits the content that needs projection with lower speed to projection arrangement, perhaps do not transmit these contents, the wireless display device does not transmit message such as mouse and keyboard yet to this data processing equipment.
In the wireless display method of the present invention, input block by the wireless display device, for example panel button or telepilot etc., the user can the input signal source switching command, the wireless display device responds this signal source switching command, apace the signal source of Projection Display is changed into another one from one, promptly switch to radio signal source or another wire signal source, perhaps switch to wire signal source or another one radio signal source from radio signal source from the wire signal source.Correspondingly, data processing equipment corresponding with signal source and the signal between the projection arrangement change alternately as mentioned above.
In addition, in the wireless display method of the present invention, further realize the state circular between projection arrangement and the data processing equipment.
Wherein, wireless display device meeting timing or not timing ground send signal to all data processing equipments in wireless display, to the state of described data processing equipment announcement self; If data processing equipment does not receive the status information from the wireless display device in the long time, then data processing equipment is attempting connecting the current wireless display task of the unsuccessful back termination of projector.
Equally, the meeting of the data processing equipment in wireless display timing or not timing ground send signal to announce the state of self to the wireless display device that is connected; If projection arrangement is not received the status information from certain data processing equipment for a long time, then projection arrangement stops and being connected and the corresponding wireless signal source is deleted from the signal source chained list of this data processing equipment attempt connecting the unsuccessful back of this data processing equipment.
Seeing also Fig. 7, is the block diagram of wireless display of the present invention system.
The wireless display system comprises wireless display device 100 and a plurality of data processing equipment 200, connects by wireless network between wireless display device 100 and the data processing equipment 200, thereby wirelessly the displaying contents of data processing equipment is projected.
This wireless display device 100 includes line projection's interface 110, radio network interface 120 and user input unit 130 and processing unit 140.
Wherein, it can be normally used wireline interfaces such as VGA, composite video, component vide that line projection's interface 110 is arranged, and this does not give unnecessary details.
See also Fig. 8, described processing unit 140 comprises:
Signal source linked list maintenance unit 142 is used to safeguard the signal source chained list in the wireless display device 100, comprises that the state of determining the signal source node is active signal source or non-active signal source, newly-increased signal source node, erasure signal source node.
Status signal processing unit 144 is used for regularly or irregularly handling the status information from data processing equipment 100.
In sum, the invention provides a kind of wireless display device that uses simultaneously for many data processing equipments, this wireless display device can be accepted the wireless display of a plurality of data processing equipments simultaneously, each data processing equipment all become this projection arrangement signal source in the lump can be by projection arrangement telepilot etc. at any time, carrying out projected picture apace switches, as wire signal source such as VGA at projection arrangement, component vide, switching between the composite video etc. is switched projected picture simply and easily thereby be implemented between a plurality of data processing equipments that carry out wireless display.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a wireless display method is characterized in that, comprises step:
1) the wireless display device generates the signal source chained list when starting, the signal source of the wireless display device that wherein each signal source node representative is corresponding with it;
2) the wireless display device is divided into active signal source and non-active signal source with the state area of the signal source in the signal source chained list; And the pairing project content in active signal source is carried out projection output;
3) when new data processing equipment request wireless display, set up the wireless connections between wireless display device and this data processing equipment, and in aforementioned signal source chained list, increase new wireless signal source node;
4) when the wireless display of data processing equipment stops, the wireless connections between disconnection of wireless projection arrangement and this data processing equipment, and deletion and its corresponding wireless signal source node in aforementioned signal source chained list;
5) when receiving the signal source switching command, the wireless display device is changed the state of the signal source of the correspondence in the signal source chained list.
2. wireless display method according to claim 1 is characterized in that, described step 2) in, when the active signal source in the described signal source chained list has when a plurality of, a plurality of project content that this wireless display device output is corresponding with it.
3. wireless display method according to claim 1 is characterized in that, described step 2) in, the data processing equipment of described active signal source correspondence transmits project content with the required speed of wireless display device; Comprise that also the wireless display device transmits user's operational order to the data processing equipment of active signal source correspondence.
4. wireless display method according to claim 3 is characterized in that, described step 2) in, the data processing equipment of described non-active signal source correspondence transmits project content or does not transmit project content to wireless display device low speed; And the wireless display device does not transmit user's operational order to the data processing equipment of non-active signal source correspondence.
5. wireless display method according to claim 1 is characterized in that, in the described step 3), comprises also that when current it is non-active signal source that this new signal source then is set when having the active signal source; When not having the active signal source, it is the active signal source that this new signal source then is set when current.
6. wireless display method according to claim 1 is characterized in that, also comprises: wireless display device meeting timing or not timing ground send signal to all data processing equipments in wireless display, to the state of described data processing equipment announcement self; When data processing equipment did not receive status information from the wireless display device in the given time, then data processing equipment stopped current wireless display task attempting connecting the unsuccessful back of projector.
7. wireless display method according to claim 1 is characterized in that, also comprises: data processing equipment meeting timing or not timing ground in wireless display send signal to announce the state of self to the wireless display device that is connected; When the projection arrangement schedule time was not received status information from certain data processing equipment, then projection arrangement stopped and being connected and the corresponding wireless signal source is deleted from the signal source chained list of this data processing equipment attempting connecting the unsuccessful back of this data processing equipment.
8. a wireless display device includes line projection's interface, radio network interface, and user input unit is used for by the wireless connections unit of radio network interface realization with the wireless connections of data processing equipment; It is characterized in that, also comprise:
Signal source linked list maintenance unit is used to safeguard the signal source chained list in the wireless display device, comprises that the state of determining the signal source node is active signal source or non-active signal source, newly-increased signal source node, erasure signal source node;
Projection display unit is used for the project content of active signal source correspondence is shown.
9. wireless display device according to claim 8 is characterized in that, also comprises the status signal processing unit, is used for regularly or irregularly handling the status information from data processing equipment.
10. a wireless display system comprises a plurality of data processing equipments, it is characterized in that: also comprise wireless display device as claimed in claim 8 or 9; Connect by wireless network between wireless display device and the data processing equipment, thereby wirelessly the displaying contents of data processing equipment is projected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101329515A CN100517052C (en) | 2005-12-29 | 2005-12-29 | Wireless projection method and system and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101329515A CN100517052C (en) | 2005-12-29 | 2005-12-29 | Wireless projection method and system and apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1991564A CN1991564A (en) | 2007-07-04 |
| CN100517052C true CN100517052C (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101329515A Expired - Fee Related CN100517052C (en) | 2005-12-29 | 2005-12-29 | Wireless projection method and system and apparatus thereof |
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| Country | Link |
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| CN (1) | CN100517052C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666958A (en) | 2008-09-02 | 2010-03-10 | 鸿富锦精密工业（深圳）有限公司 | Projecting device |
| CN103873268B (en) * | 2012-12-10 | 2017-02-15 | 北京棣南新宇科技有限公司 | Data presentation processing system, controller for controlling presentation and related devices |
| CN103235705B (en) * | 2013-02-27 | 2016-08-17 | 广东工业大学 | Multi-user radio projecting method and projection gateway |
| CN103227913B (en) * | 2013-05-15 | 2016-04-27 | 小米科技有限责任公司 | Projecting method and device |
| CN103345855B (en) * | 2013-07-11 | 2015-06-10 | 北京信息科技大学 | Projection switching system and projection switching method for teaching |
| CN107438177B (en) * | 2014-09-08 | 2019-03-01 | 浙江易网科技股份有限公司 | A kind of projector and its method for controlling projection controlled using soft AP |
| CN105988765A (en) * | 2015-03-02 | 2016-10-05 | 中兴通讯股份有限公司 | Projection content switching method and system, and projection terminal |
| CN105657387A (en) * | 2015-12-30 | 2016-06-08 | 上海创功通讯技术有限公司 | Projection method and projection system |
| CN109379549A (en) * | 2018-09-18 | 2019-02-22 | 湖州佳格电子科技股份有限公司 | A kind of wireless screen transmission method, equipment and system |
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2005
- 2005-12-29 CN CNB2005101329515A patent/CN100517052C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1991564A (en) | 2007-07-04 |
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