CN102724464B - Projection display device, projection display system and projection display control method - Google Patents
Projection display device, projection display system and projection display control method Download PDFInfo
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Abstract
The invention relates to a projection display device, which comprises a first audio and video signal receiving module for receiving audio and video signals through a power line, an audio and video signal decoding module for decoding the received audio and video signals, a projection module for projecting the decoded audio and video signals, outputting an image and displaying a control menu according to user operation through projection, a photographing module for photographing an image of the displayed control menu and a control signal processing module for receiving the confirmation signal sent by the remote control, and then analyzing a user instruction according to the influence of the control menu and sending the user instruction through the power line. The projection display device does not need to rearrange wires or adopt external connection wires and can control a movie transmission device positioned at the remote end through the power line. Furthermore, the invention also provides a projection display system and a projection display control method.
Description
Technical field
The present invention relates to projection display technique, relate in particular to a kind of projection display equipment, projection display system and Projection Display control method.
Background technology
Development along with projector's technology, projection device just progressively enters into domestic. applications, development along with new type light source devices such as light-emitting diode, laser, that projector's complete machine is just becoming is more and more portable, useful life is more and more longer, and its price constantly reducing also makes increasing family adopt projection as display terminal.
Because traditional family is generally left to the interfaces such as cable TV in advance video wall, the nearer place of equidistant TV, bedroom when connecting up, yet the particularity due to Projection Display, display device and screen have more remote, if rewiring is more loaded down with trivial details, adopt external connecting line also can make indoor in disorder.
Summary of the invention
In view of this, be necessary to provide a kind of projection display equipment, projection display system and Projection Display control method, it can overcome existing projector needs rewiring or adopts the external problems such as connecting line.
Above-mentioned projection display equipment is achieved through the following technical solutions:
A projection display equipment, it comprises: the first audio-video signal receiver module, for receiving audio-video signal via power line; Audio-video signal decoder module, for decoding to the audio-video signal receiving; Projection module, for according to decoded audio-video signal with projection pattern output image, and for operate Projection Display Control-Menu according to user; Photographing module, for taking the image of the Control-Menu of demonstration; And control signal processing module.Control signal processing module comprises: analytic unit, for analyzing the image of this Control-Menu, according to the position analysis user instruction of luminous point in image; Coding unit, for being encoded to this user instruction the form being suitable for power line transmission; And transmitting element, for send this user instruction via power line.
Further improvement as above-mentioned projection display equipment, it also comprises the first control signal receiver module, for receiving the confirmation signal that remote controller sends and being passed to this analytic unit, this analytic unit is just analyzed analysis user instruction according to light spot position after receiving this confirmation signal.
Above-mentioned projection display system is achieved through the following technical solutions:
A projection display system, it comprises projection display equipment and audio and video transmitting set.Projection display equipment is above-mentioned projection display equipment arbitrarily.Audio and video transmitting set comprises: audio-video signal coding module, for audio-video signal being encoded to the form being suitable for via power line transmission; And audio-video signal transport module, for sending the audio-video signal after coding via power line.
As the further improvement of above-mentioned projection display system, audio and video transmitting set also comprises the second audio-video signal receiver module, for receiving the audio-video signal of signal source.
As the further improvement of above-mentioned projection display system, audio and video transmitting set also comprises audio-video signal modular converter, for the audio-video signal receiving is converted to predetermined form.
As the further improvement of above-mentioned projection display system, audio and video transmitting set also comprises the second control signal receiver module, for via power line reception control signal; And control signal transmitter module, for the control signal receiving to signal source transmitting with radio frequency or infrared mode.
Further improvement as above-mentioned projection display system, projection display equipment also comprises the first control signal receiver module, for receiving the confirmation signal that remote controller sends and being passed to analytic unit, analytic unit after receiving this confirmation signal just according to the instruction of light spot position analysis user.
Above-mentioned Projection Display control method is achieved through the following technical solutions:
A Projection Display control method, it comprises: by projection display equipment, undertaken: Projection Display Control-Menu; Take the image of the Control-Menu showing; According to the luminous point analysis user instruction in Control-Menu image; User instruction is encoded into the form that is suitable for power line transmission; And send user instruction coding via power line; By audio and video transmitting set, undertaken: receive this user instruction coding; The user instruction coding and decoding receiving is obtained to user instruction; And respond this user instruction.
Further improvement as above-mentioned Projection Display control method, also comprises: projection display equipment receives the confirmation signal of remote controller transmitting, and after receiving this confirmation signal, ability is according to the luminous point analysis user instruction in Control-Menu image.
As the further improvement of above-mentioned Projection Display control method, respond this user instruction and comprise to signal source transmitting radio frequency or infrared control signal.
Therefore in above-mentioned projection display equipment, audio-video signal transmits by power line, can utilize indoor existing power line network to transmit, and without rewiring again or use external connecting line to be connected to projection display equipment.
In addition, by the virtual Control-Menu of Projection Display, the luminous point that coordinates laser remote controller to produce, adopts Video Capture Technology can realize the input of user instruction, and by the instruction of power line transmission user, thereby complete being positioned at the control of the audio and video transmitting set of far-end.
For above and other object of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
Accompanying drawing explanation
The structured flowchart of the projection display equipment that Fig. 1 provides for the first embodiment.
Fig. 2 is the schematic diagram of the Control-Menu that shows of the projection display equipment of the first embodiment.
Fig. 3 is the block diagram of control signal processing module of the projection display equipment of the first embodiment.
The structured flowchart of the projection display equipment that Fig. 4 provides for the second embodiment.
Fig. 5 is the schematic diagram of the laser remote controller that is used in conjunction with of the projection display equipment of the second embodiment.
The structured flowchart of the audio and video transmitting set that Fig. 6 provides for the 3rd embodiment.
Fig. 7 is the schematic appearance of the audio and video transmitting set of the 3rd embodiment.
The structural representation of the projection display system that Fig. 8 provides for the 4th embodiment.
The flow chart of the Projection Display control method that Fig. 9 provides for the 5th embodiment.
Embodiment
For further setting forth the present invention, realize technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof to the projection display equipment, projection display system and the Projection Display control method that propose according to the present invention, be described in detail as follows.
The first embodiment
Fig. 1 is the structural representation of the projection display equipment of the first embodiment.As shown in Figure 1, projection display equipment 100 comprises central processing unit 10, the first audio-video signal receiver module 11, audio-video signal decoder module 12, projection module 13, photographing module 14 and control signal processing module 15.
Central processing unit 10 is for coordinating each module work.The first audio-video signal receiver module 11 is for receiving power line carrier signal via power line, and above-mentioned power line carrier signal is for example that the audio and video transmitting set that is positioned at far-end sends via power line.Audio-video signal decoder module 12 is decoded and is obtained vision signal and audio signal for the power line carrier signal to receiving.Projection module 13 for according to the vision signal that obtains after decoding with projection pattern output image.Via the collaborative work of above each module, can realize collection from signal, be decoded to the steps such as output.
For realizing the control to far-end audio and video transmitting set, projection module 13 can also Projection Display Control-Menu 101 under the control of central processing unit 10.Consult Fig. 2, it is the schematic diagram of the Control-Menu 101 of demonstration.As can be seen from Figure 2, in Control-Menu 101, adopt respectively each function button of corresponding control simulation entity remote controller, for example mains switch, direction navigation, volume plus-minus, program plus-minus, quiet etc.Control-Menu 101 can adopt translucent mode Overlapping display on key frame.
The Control-Menu 101 that is appreciated that above-mentioned demonstration is only picture, and picture itself can not respond the various operations of user to menu.In order to detect user's operational order, photographing module 14 is for taking the image of the Control-Menu 101 of demonstration.And control signal processing module 15 is determined user's operational order by the image of analysis and Control menu 101.It will be appreciated, of course, that the image that photographing module 14 photographs is not limited to only comprise Control-Menu itself, this image can comprise the picture of whole demonstration, more may comprise screen periphery.
Particularly, consult Fig. 3, control signal processing module 15 comprises analytic unit 151, coding unit 152 and transmitting element 153.Wherein, analytic unit 151 is for the image of analysis and Control menu, according to the position analysis user instruction of luminous point in image.Above-mentioned luminous point is for example that user adopts the icon that laser remote controller irradiates in corresponding menu to produce.For instance, when luminous point be positioned at volume+icon on time, can determine that user instruction is to increase volume.Correspondingly, coding unit 152 can be encoded user instruction with power line carrier form, and transmitting element 153 is processed for the audio and video transmitting set of far-end for send this user instruction via power line.
Therefore in the projection display equipment of the present embodiment, audio-video signal transmits by power line, can utilize indoor existing power line network to transmit, and without rewiring again or use external connecting line to be connected to projection display equipment.
In addition, be appreciated that, owing to thering is predetermined communication protocol between laser remote controller and projection display equipment 100, in general, press the button on laser remote controller, such as directionkeys etc., response be screen display menu (the On-Screen Display of projection display equipment 100 self, OSD), therefore directly utilize laser remote controller and cannot input the operational order to far-end audio and video transmitting set.
And in the present embodiment, by the virtual Control-Menu of Projection Display, the luminous point that coordinates laser remote controller to produce, adopts Video Capture Technology can realize the input of user instruction, and by the instruction of power line transmission user, thereby complete being positioned at the control of the audio and video transmitting set of far-end.And this kind of mode need not change design and the driving of existing projection arrangement laser remote controller.
The second embodiment
Consult Fig. 4, the second embodiment provides a kind of projection display equipment 200, and it is similar to the projection display equipment 100 of the first embodiment, and difference is, projection display equipment 200 also comprises the first control signal receiver module 16.The first control signal receiver module 16 is for example radio frequency module or infrared module, can be respectively used to received RF signal or infrared signal.
Fig. 5 is the schematic diagram of a laser remote controller 20 of projection display equipment 200.As shown in Figure 5, laser remote controller 20 has a plurality of buttons 21, and built-in generating laser (not shown) and signal projector (not shown).Generating laser can be launched the laser of different capacity, for example the laser of 1 milliwatt (mW) and 5mW.Signal projector can radio frequency or infrared mode transmitted signal.
Above-mentioned a plurality of button 21 comprises " confirmation " key 210, and also can integrated finger detection agency in this " confirmation " key 210, and sensitive switch for example can be realized finger and touch and the detection of pressing two kinds of different states.Thereby when user touches " confirmation " key 210, generating laser sends the laser of 1mW, be used to indicate location, and when user presses " confirmation " key 210, generating laser sends the laser of 5mW, synchronous signal reflector sends the signal that " confirmation " key 210 is pressed.In addition, be appreciated that above-mentioned finger detection agency is not limited to be arranged in " confirmation " key 210.
The first control signal receiver module 16 is after receiving the signal that " confirmation " key 210 presses, and the analytic unit 151 of control signal processing module 15 just starts analyze the image of the Control-Menu 101 of taking and confirm the operation that user will carry out.Adopt this kind of mode, only when user has really carried out operation, just need the image of processing, analysis and Control menu 101, reduced the system consumption of free time.
The 3rd embodiment
Consult Fig. 6, the 3rd embodiment provides a kind of audio and video transmitting set 300, and it comprises central processing unit 30, the second audio-video signal receiver module 31, audio-video signal modular converter 32, audio-video signal coding module 33, audio-video signal transport module 34, the second control signal receiver module 35 and control signal transmitter module 36.
Central processing unit 30 is for coordinating each module work.
The second audio-video signal receiver module 31 is for receiving the audio-video signal from signal source, above-mentioned signal source be for example television receive terminal as digital television, Set Top Box, or other multimedia terminals such as computer, DVD etc.Between the second audio-video signal receiver module 31 and signal source, can adopt cable or wireless mode to be connected.Above-mentioned audio-video signal can be analog format or number format.
Audio-video signal modular converter 32 for the vision signal that different-format vision signal is converted to consolidation form as digital visual interface (Digital Visual Interface, DVI) signal or Low Voltage Differential Signal (Low Voltage Differential Signal, LVDS) etc. and the audio signal that audio-video signal is converted to consolidation form as met the audio signal of audio frequency between integrated circuit (Inter-IC Sound, I2S) bus standard.Be appreciated that audio-video signal modular converter 32 can be omitted when the audio-video signal of signal source output meets above-mentioned standard.Audio-video signal modular converter 32 can be realized by special integrated circuit, can also be the functional module that is positioned at central processing unit 30.
Audio-video signal coding module 33 can be for the signal format of power line transmission, i.e. power line carrier signal for audio-video signal is encoded to.
Audio-video signal transport module 34 is for entering power line by power line carrier signal coupling.Existing power supply adopts 50-60 hertz (Hz) conventionally, and the AC signal of voltage 110 volts (V) or 220V, by the configuration of hardware circuit, can be coupled into code signal the L in alternating current, in N circuit in audio-video signal transport module 34.Foregoing circuit belongs to common contents in power line carrier field, at this, no longer goes to live in the household of one's in-laws on getting married and chats.
The second control signal receiver module 35 is connected with power line, for reading the power line carrier signal transmitting on power line, whether and to resolve it be the control signal of predetermined format, after identifying control signal, the second control signal receiver module 35 sends to control signal transmitter module 36 by control signal.
Control signal transmitter module 36 can be for example radio-frequency transmissions module or infrared emission module.Its control protocol according to signal source sends radio frequency or infrared signal.For example, signal source can be Set Top Box or video player, when the second control signal receiver module 35 receives the control signal from the volume increase of power line, control signal transmitter module 36 can send with volume in TV remote controller increases infrared code that button is identical to television set, thus the volume that television set can corresponding increase output.
Fig. 7 is the schematic appearance of audio and video transmitting set 300.As shown in Figure 7, audio and video transmitting set 300 comprises housing 37, and housing 37 is rectangle substantially, and its end face 371 can be used for carrying other such as digital TV set-top box or DVD etc. of electronic installation.And one end of housing 37 has upturned end 372, and from then on control information transmitter module 36 exposes end 372, make it can be in the face of being placed on the electronic installations such as Set Top Box on end face 371 or DVD, to facilitate emissioning controling signal.
The audio and video transmitting set of the present embodiment is by power line transmission sound vision signal, needs rewiring or use the trouble of external connecting line in the time of therefore can avoiding using projection display equipment output video.And by the control signal of transmitting on monitoring power electric line, adopt control signal transmitter module 36 emissioning controling signals to realize the control to signal source, make user can conveniently control the signal source of far-end at projection display equipment place.
In the present embodiment, be to take signal source to be placed on audio and video transmitting set 300 and to describe as example, the advantage of this kind of mode is not change the structure of existing equipment completely.Yet be appreciated that signal source and audio and video transmitting set 300 also can integrate.For example, each functional module of audio and video transmitting set 300 is integrated in digital TV set-top box, so, can reduces the volume that integral body takies, nor need again control signal transmitter module, directly in audio and video transmitting set 300 internal transmission control signals.
The 4th embodiment
Consult Fig. 8, the 4th embodiment provides a kind of projection display system 400, and it comprises projection display equipment 200, audio and video transmitting set 300 and signal source 300a.Wherein, audio and video transmitting set 300 for example can be arranged in the first room 41 with signal source 300a, and projection display equipment 200 for example can be arranged in the second room 42.Between audio and video transmitting set 300 and signal source, for example can adopt connecting line 301 to be connected, and signal source 300a can be arranged on projection display equipment 200.In addition, audio and video transmitting set 300 is connected with power line network 43 respectively with projection display equipment 200.And projection display equipment 200 has been described in detail as above with the concrete structure of audio and video transmitting set 300, at this, no longer repeat.
In the projection display system 400 of the present embodiment, audio-video signal can transmit by existing power line network, therefore without re-starting wiring or using external connecting line to connect projection display equipment 200 and audio and video transmitting set 300, user can adopt projection pattern to appreciate the video of the broadcasting in the first room 41 in the second room 42 easily.And by projection display equipment 200 easily control signal via power line network, be sent in audio and video transmitting set 300, by audio and video transmitting set 300, complete the control to signal source 300a, easy to operate.
The 5th embodiment
Consult Fig. 9, the 5th embodiment provides a kind of Projection Display control method, and it comprises the following steps:
By projection display equipment, undertaken:
Step S510, Projection Display Control-Menu;
The image of the Control-Menu that step S520, shooting show;
Step S530, according to the luminous point analysis user instruction in Control-Menu image;
Step S540, user instruction is encoded into the form that is suitable for power line transmission;
Step S550, via power line, send user instruction coding;
And undertaken by audio and video transmitting set:
Step S560, receive this user instruction coding;
Step S570, the user instruction coding and decoding receiving is obtained to user instruction;
Step S580, respond this user instruction.
In above-mentioned Projection Display control method, by projection display equipment, show Control-Menu, the luminous point that coordinates laser remote controller to produce, adopt Video Capture Technology can detect user and want the operation of carrying out, send the mode by power line after user instruction coding to audio and video transmitting set, realized being positioned at the control of the audio and video transmitting set of far-end, and need not adopt extra connecting line or wireless network to connect.
In order further to reduce free time, be that user is without the system consumption in the operating time, can also receive radio frequency or the infrared signal that remote controller sends by projection display equipment, only have the image of just analyzing the Control-Menu of shooting when user supresses " confirmation " key.
In addition, in step S580, when audio and video transmitting set is while being connected with external signal source, can send radio frequency or infrared signal to signal source, then by signal source, complete corresponding operation, such as increasing volume etc.; And when audio and video transmitting set and signal source be while integrating, can directly by audio and video transmitting set, complete corresponding operation.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, any brief introduction of above embodiment being done according to technical spirit of the present invention is revised, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. a projection display equipment, it comprises:
The first audio-video signal receiver module, for receiving audio-video signal via power line;
Audio-video signal decoder module, for decoding to the audio-video signal receiving;
Projection module, for according to decoded audio-video signal with projection pattern output image;
It is characterized in that, this projection module is also for operating Projection Display Control-Menu according to user, and this projection display equipment also comprises:
Photographing module, for taking the image of the Control-Menu of demonstration;
Control signal processing module, comprising:
The first control signal receiver module, for receiving the confirmation signal that remote controller sends and being passed to this analytic unit;
Analytic unit, for the image receiving this this Control-Menu of confirmation signal post analysis, according to the position analysis user instruction of luminous point in image;
Coding unit, for being encoded to this user instruction the form being suitable for power line transmission; And
Transmitting element, for sending this user instruction via power line.
2. a projection display system, it comprises projection display equipment and audio and video transmitting set;
This projection display equipment comprises:
The first audio-video signal receiver module, for receiving audio-video signal via power line;
Audio-video signal decoder module, for decoding to the audio-video signal receiving;
Projection module, for according to decoded audio-video signal with projection pattern output image;
It is characterized in that, this projection module is also for operating Projection Display Control-Menu according to user, and this projection display equipment also comprises:
Photographing module, for taking the image of the Control-Menu of demonstration;
Control signal processing module, comprising:
The first control signal receiver module, for receiving the confirmation signal that remote controller sends and being passed to this analytic unit;
Analytic unit, for the image receiving this this Control-Menu of confirmation signal post analysis, according to the position analysis user instruction of luminous point in image;
Coding unit, for being encoded to this user instruction the form being suitable for power line transmission; And
Transmitting element, for sending this user instruction via power line;
This audio and video transmitting set comprises:
Audio-video signal coding module, for being encoded to audio-video signal the form being suitable for via power line transmission; And
Audio-video signal transport module, for sending the audio-video signal after coding via power line.
3. projection display system as claimed in claim 2, is characterized in that, this audio and video transmitting set also comprises the second audio-video signal receiver module, for receiving the audio-video signal of signal source.
4. projection display system as claimed in claim 3, is characterized in that, this audio and video transmitting set also comprises audio-video signal modular converter, for the audio-video signal receiving is converted to predetermined form.
5. projection display system as claimed in claim 3, is characterized in that, this audio and video transmitting set also comprises the second control signal receiver module, for via power line reception control signal; And
Control signal transmitter module, for the control signal receiving to signal source transmitting with radio frequency or infrared mode.
6. a Projection Display control method, it comprises:
By projection display equipment, undertaken:
Projection Display Control-Menu;
Take the image of the Control-Menu showing;
Receive the confirmation signal of remote controller transmitting;
After receiving this confirmation signal according to the luminous point analysis user instruction in Control-Menu image;
User instruction is encoded into the form that is suitable for power line transmission; And
Via power line, send user instruction coding;
By audio and video transmitting set, undertaken:
Receive this user instruction coding;
The user instruction coding and decoding receiving is obtained to user instruction; And
Respond this user instruction.
7. Projection Display control method as claimed in claim 6, is characterized in that, responds this user instruction and comprises to signal source transmitting radio frequency or infrared control signal.
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| CN105203915B (en) * | 2015-08-26 | 2018-07-24 | 江苏省电力公司南京供电公司 | A kind of Winding in Power Transformer loosens defect diagonsis system and diagnostic method |
| CN107665108A (en) * | 2017-02-24 | 2018-02-06 | 广东玖星光能低碳科技有限公司 | Information transmitting apparatus, information display device and information display system |
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| CN1289086A (en) * | 1999-09-21 | 2001-03-28 | 精工爱普生株式会社 | Interactive display system |
| CN1305143A (en) * | 2001-01-16 | 2001-07-25 | 郭方红 | System and method for inputting coordinate and control information to computer |
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