CN104378567B - Portable DLP multimedia intelligents high in the clouds optical projection system - Google Patents
Portable DLP multimedia intelligents high in the clouds optical projection system Download PDFInfo
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- CN104378567B CN104378567B CN201410737837.4A CN201410737837A CN104378567B CN 104378567 B CN104378567 B CN 104378567B CN 201410737837 A CN201410737837 A CN 201410737837A CN 104378567 B CN104378567 B CN 104378567B
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Abstract
The invention discloses a kind of portable DLP multimedia intelligents high in the clouds optical projection system, including video input interface, video processor, signal format converting unit, storage medium interface, WIFI module, Android processor, 3D format conversion processors, DMD display drivers, projection light machine, central processing unit, input module and LED light source unit.Video processor is used to the video data that video input interface inputs being converted to the first TTL signal, and signal format converting unit is used to the first TTL signal that video processor exports being converted to the first HDMI signals；Android processor is used for the video data for reading storage medium interface or the video data of WIFI module reception is converted to the 2nd HDMI signals；3D format conversion processors are used to the first HDMI signals or the 2nd HDMI signals carrying out 3D conversion the second TTL signals of regeneration；DMD display drivers are used to generate image drive signals according to the second TTL signal.The present invention is full-featured, small, is convenient for carrying.
Description
Technical field
The present invention relates to projecting apparatus more particularly to a kind of portable DLP multimedia intelligents high in the clouds optical projection systems.
Background technology
Projecting apparatus is a kind of equipment that can be projected image or video on curtain, can be by different interfaces with meter
Calculation machine, VCD, DVD, BD, game machine, DV etc., which are connected, plays corresponding vision signal.Projecting apparatus is widely used in family, office
According to working method difference, there are the different types such as CRT, LCD, DLP in room, school and public place of entertainment.The general body of current projecting apparatus
Product is bigger, only realizes simple projecting function, computer or other-end equipment is linked into projecting apparatus by connecting line, i.e.,
The video source that can be exported to computer or other-end equipment is amplified projection, and function is relatively simple.Meanwhile with technology
Development, 3D videos have become the trend of development, and still, current projecting apparatus cannot carry out projection broadcasting to 3D videos, can not
Simulation 3D projections are carried out to 2D videos, therefore, existing projecting apparatus cannot already meet the needs developed now.
Invention content
A kind of portable DLP multimedia intelligents high in the clouds is provided it is an object of the invention to overcome of the prior art insufficient
Optical projection system.
Technical solution is used by the present invention solves prior art problem：A kind of portable DLP multimedia intelligents high in the clouds
Optical projection system, including：
Video input interface, for receiving the video data of signal source output；
Video processor, the video processor are connect with the video input interface, for video input interface is defeated
The video data entered is converted to the first TTL signal；
Signal format converting unit, the signal format converting unit are connect with the video processor, for by described in
First TTL signal of video processor output is converted to the first HDMI signals；
Storage medium interface, for connecting exterior storage medium and reading the video data in the exterior storage medium；
WiFi module, for carrying out wireless communication with external equipment or being connected to internet；
Android processor, the Android processor is connect with the storage medium interface and WIFI module, for described
The media data flow that the video file or WIFI module that storage medium interface is read receive is decoded broadcasting, while will be after decoding
Video data be converted to the 2nd HDMI signals；
3D format conversion processors, the 3D format conversion processors are handled with the signal format converting unit and Android
Device connects, for the first HDMI signals or the 2nd HDMI signals to be directly changed into the second TTL signal or by described the
One HDMI signals or the 2nd HDMI signals first carry out 3D format conversions and regenerate the second TTL signal；
DMD display drivers, the DMD display drivers are connect with the 3D format conversion processors, for according to institute
State the second TTL signal generation image drive signals；
Projection light machine is connect with the DMD display drivers, for being projected according to described image drive signal；
Central processing unit is connect with the video processor, Android processor and 3D format conversion processors, for basis
Control instruction input by user controls the video processor, Android processor and 3D format conversion processors；
Input module is connect with the central processing unit, for inputting the control instruction；
LED light source unit is connect with the central processing unit, for providing light source for the projection light machine.
Preferably, the 3D format conversion processors are additionally operable to detach in the first HDMI signals or the 2nd HDMI signals
Digital audio and video signals；
The 3D format conversion processors are connected with an audio D/A converting unit, the audio D/A converting unit it is defeated
Outlet is connected to the video processor, and power amplifier unit and earphone interface are connected on the video processor；The audio number
Mould converting unit is used to the digital audio and video signals being converted into analog audio signal, and analog audio signal is input to the video
Processor is exported by the video processor to power amplifier unit or earphone interface.
Preferably, the input module includes touch controlled key module, is connect with the central processing unit, for according to user
It touches and generates corresponding control instruction.
Preferably, the input module further includes infrared receiving module, is connect with the central processing unit, is used for receiving
The control instruction that family is emitted by IR remote controller.
Preferably, the video processor is connected with bluetooth module, and the video processor is according to the control of central processing unit
System, the analog audio signal is emitted outward by the bluetooth module.
Preferably, the video input interface includes USB interface, HDMI interface and AV interfaces, the central processing unit root
The switching inputted according to the control instruction input by user control video processor to USB interface, HDMI interface and AV interfaces.
Preferably, the storage medium interface includes one or more of USB interface, OTG interfaces, SD card interface.
Preferably, the Android processor is also associated with Ethernet interface, and internet is accessed for passing through cable.
Preferably, the LED light source unit includes LED light source, connect to drive the LED light source with the LED light source
LED drive circuit and LED sequence controllers to control the LED light source sequential are connect with the LED drive circuit,
The LED sequence controllers are connect with the central processing unit.
The beneficial effects of the invention are as follows：Portable DLP multimedia intelligents high in the clouds optical projection system provided by the invention, a side
Face can connect computer, DVD/VCD players, high definition device etc. by video input interface, with to computer, DVD/VCD broadcastings
Device, high definition device video data carry out projection broadcasting；On the other hand, Android processor, WIFI module, storage medium are configured with
Interface etc. can obtain video resource from network and carry out projection broadcasting, and can surf the web Domestic News etc., can also be from depositing
Storage media reading video data such as USB flash disk, SD card, USB device carries out projection broadcasting.In another aspect, in projection playing process
In, video data carries out 3D format conversions by 3D format conversion processors, such as 2D signals can lead directly to or be converted into simulate
3D signals, reconvert is into TTL signal, and 3D signals can be converted into TTL signal output, so, it can be achieved that the 3D of video data
Projection plays.In short, the portable DLP multimedia intelligents high in the clouds optical projection system of the present invention, full-featured, user's intelligence is brought
Experience, meanwhile, it is small, be convenient for carrying.
Description of the drawings
Fig. 1 is the structure diagram of the portable DLP multimedia intelligents high in the clouds optical projection system of the embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
With reference to shown in Fig. 1, an embodiment of the present invention provides a kind of portable DLP multimedia intelligents high in the clouds optical projection system, packets
Include video input interface, video processor 104, signal format converting unit 105, storage medium interface, WIFI module 108, peace
It is tall and erect processor 109,3D format conversion processors 111, DMD display drivers 112, projection light machine 113, central processing unit 114, defeated
Enter module, LED light source unit 120 and power management module 121.
Specifically, video input interface is used to receive the video data of signal source output.Signal source can be computer, DVD/
The high definition devices such as VCD players, Blu-ray player, the video file that these signal sources can be internal are converted to corresponding video counts
It is exported according to stream from video output interface, and video output interface can pass through corresponding connecting line and the video input in the present invention
Interface connects, in this way, the video data of signal source can be transmitted to video input interface.
Video processor 104 is connect with video input interface, for the video data conversion for inputting video input interface
For the first TTL signal.That is, video processor 104 receives the video data of video input interface input, to video data
It is decoded and forms the first TTL signal.
Signal format converting unit 105 is connect with the video processor 104, for the video processor 104 is defeated
The first TTL signal gone out is converted to the first HDMI signals.
Storage medium interface, for connecting exterior storage medium and reading the video data in the exterior storage medium.
The storage medium interface includes one or more of usb 1 06, OTG interfaces 107, SD card interface 108.Usb 1 06
USB flash disk, USB movement equipment can be connected, OTG interfaces 107 can connect digital equipment, and SD card interface 108 may be inserted into storage card
Deng.
WIFI module 108, for carrying out wireless communication with external equipment or being connected to internet.The WIFI module
108 can be connected to router, and internet is connected to by router, in this way, may browse through each navigation website and news money
News etc., at the same time it can also obtain online media data flow from network.
Android processor 109 is connect with the storage medium interface and WIFI module 108, for being connect to the storage medium
The media data flow that mouthful video file read or WIFI module 108 receive is decoded broadcasting, while by decoded video
Data are converted to the second HDMI signals.Tetra- core A9 processors of ARM etc. may be used in the Android processor 109.
3D format conversion processors 111 are connect with the signal format converting unit 105 and Android processor 109, are used for
The first HDMI signals or the 2nd HDMI signals are subjected to 3D format conversions and generate the second TTL signal.Specifically, when first
When HDMI signals or the 2nd HDMI signals are 2D forms, the first HDMI signals or the 2nd HDMI signals can lead directly to or convert
Into simulation 3D signals, reconvert is into the second TTL signal；It, should when the first HDMI signals or the 2nd HDMI signal standards 3D forms
First HDMI signals or the 2nd HDMI signals directly can be converted into the second TTL signal by 3D format conversion processors 111.
DMD display drivers 112 are connect with the 3D format conversion processors 111, for according to second TTL signal
Generate image drive signals.Projection light machine 113 is connect with the DMD display drivers 112, is believed for being driven according to described image
It number is projected.
Central processing unit 114 is connect with video processor 104, Android processor 109 and 3D format conversion processors 111,
For according to control instruction input by user to the video processor 104, Android processor 109 and 3D format conversion processors
111 are controlled.
Input module is connect with the central processing unit 114, for inputting the control instruction.In the reality of the present invention
It applies in example, input module includes touch controlled key module 115, is connect with the central processing unit 114, is produced for being touched according to user
Raw corresponding control instruction.Such as power button, volume plus-minus button, input source switching key etc..Wherein, input source switches
Button is for when video input interface connects multiple signal sources, selecting the access of one of which signal source.
LED light source unit 120 is connect with the central processing unit 114, for providing light source for the projection light machine 113.
The LED light source unit 120 can specifically include LED light source 1201, connect to drive the LED light with the LED light source 1201
The LED drive circuit 1202 in source 1201 and when being connect with the LED drive circuit 1202 to control the LED light source 1201
The LED sequence controllers 1203 of sequence, the LED sequence controllers 1203 are connect with the central processing unit 114.
Power management module 121 is powered for above-mentioned modules.
Concrete operating principle is as follows：
External vision signal, that is, the high definition devices such as DVD/VCD players, Blu-ray player are passed through respectively
The vision signal that USB interface 101, AV interfaces 103 and HDMI interface 102 input, the vision signal are done by video processor 104
After signal behavior switching, the vision signal of final switching input (such as USB interface 101 input vision signal) is converted to the
One TTL signal (RGB888), first TTL signal are converted to the first HDMI signals by signal format converting unit 105 again, the
One HDMI signals are input to 3D format conversion processors 111 again, when the first HDMI signals are 2D forms, the first HDMI signals
It can not make 3D conversions or be converted into 3D analog signals, then by being converted further into the second ttl signal, and as the first HDMI
When signal is standard 3D forms, the first HDMI signals directly can be converted into the 2nd TLL by 3D format conversion processors 111
Signal.Second ttl signal is input to DMD display drivers 112 again, and image-driven is generated by DMD display drivers 112
Signal finally carries out projection broadcasting by projection light machine 113 again.
For the vision signal of Android system part input, that is, the media data flow or USB interface that network is online
106th, OTG interfaces 107 or the video file of SD card interface 108, the media data flow and video file can be by Android at
Reason device 109 is decoded broadcasting, and decoded video data is carried out conversion by Android processor 109 and forms second
HDMI signals, the 2nd HDMI signals are input to 3D format conversion processors 111 again；Equally, when the 2nd HDMI signals are 2D lattice
During formula, the 2nd HDMI signals can not make 3D conversions or be converted into 3D analog signals, then by being converted further into second
Ttl signal, and when the 2nd HDMI signals be standard 3D forms when, the 2nd HDMI signals can be directly by 3D format conversions at
Reason device 111 is converted into the second ttl signal.Second ttl signal is input to DMD display drivers 112 again, is shown by DMD
Driver 112 generates image drive signals, finally carries out projection broadcasting by projection light machine 113 again.
According to portable DLP multimedia intelligents high in the clouds optical projection system provided by the invention, on the one hand, can be defeated by video
Incoming interface connection computer, DVD/VCD players, high definition device etc., with to computer, DVD/VCD players, high definition device video
Data carry out projection broadcasting；On the other hand, Android processor 109, WIFI module 108, storage medium interface etc. are configured with, it can be with
Video resource is obtained from network and carries out projection broadcasting, can surf the web Domestic News etc., can also be from storage medium such as U
The reading video datas such as disk, SD card, USB device carry out projection broadcasting.In another aspect, in playing process is projected, video data
3D format conversions are carried out by 3D format conversion processors 111, such as 2D signals can lead directly to or be converted into simulation 3D signals, then
TTL signal is converted into, and 3D signals can be converted into TTL signal output, so, it can be achieved that the 3D projections of video data play.
In short, the portable DLP multimedia intelligents high in the clouds optical projection system of the present invention, full-featured, and it is small, it is convenient for carrying, it is intelligent
Experience.
In a preferred embodiment of the invention, video input interface includes USB interface 101, HDMI interface 102 and AV interfaces
103, the central processing unit 114 according to control instruction input by user control the video processor 104 to USB interface 101,
The switching that HDMI interface 102 and AV interfaces 103 input.For example, the input source switching on touch controlled key module 115 is touched as user
During button, input source switching key generates input source switching command, and the input source switching command is input at central processing
Device is managed, central processing unit 114 outputs control signals to video processor 104 according to the input source switching command, to control video
104 switching signal source of processor.Such as the high definition device of HDMI interface 102 is switched to by the computer of USB interface 101 etc..
Optionally, in the example of the present invention, Android processor 109 is also associated with Ethernet interface 110, for leading to
Cross cable access internet.That is, the optical projection system of the present invention, can also access internet by wired mode, pass through
Internet obtains Online Video and carries out projection broadcasting or online browse navigation website or Domestic News etc..
In a preferred embodiment of the invention, input module further includes infrared receiving module 116, with the centre
Reason device 114 connects, for receiving the control instruction that user is emitted by IR remote controller.IR remote controller is used for the present invention's
Optical projection system emission control instructs.Generally, IR remote controller has power switch key, mute key, input source switch key, returns
Homepage key, upper and lower, left and right shifting bond(s), determination key, Menu key, return key, volume key, broadcasting/Pause key, 2D mode keys, 3D
Format conversion key etc..
Specifically, infrared receiving module 116 receives the various control instructions of IR remote controller, which is inputted
To central processing unit 114, various functions are controlled by the central processing unit 114.Such as：When broadcasting 2D format videos
When, under normal circumstances, 3D format conversion processors 111 lead directly to 2D videos and without 3D format conversions, when user wants to watch
During 3D forms, 3D format conversion keys can be pressed, 3D format conversions key generates the instruction of 3D format conversions, 3D format conversions instruction
Central processing unit 114 is input to, central processing unit 114 is output control signals to according to the instruction of 3D format conversions at 3D format conversions
Device 111 is managed, at this point, 3D format conversion processors 111 can carry out 2D videos (the first HDMI signals or the 2nd HDMI signals)
3D format conversions are converted into simulation 3D signals, then simulation 3D signals are converted into the second TTL signal, export to DMD and show drive
Dynamic device 112 drives projection light machine 113 to carry out 3D projections and plays by DMD display drivers 112.
In a preferred embodiment of the invention, 3D format conversion processors 111 are additionally operable to detach the first HDMI
Digital audio and video signals in signal or the 2nd HDMI signals.It is single that 3D format conversion processors 111 are connected with audio D/A conversion
Member 117, the output terminal of audio D/A converting unit 117 is connected to video processor 104, is connected on video processor 104 active
Put unit 118 and earphone interface 119；Audio D/A converting unit 117 is used to digital audio and video signals being converted into analogue audio frequency letter
Number, analog audio signal is input to video processor 104, is exported to power amplifier unit 118 or earphone and connect by video processor 104
Mouth 119.That is, the optical projection system of the present embodiment also supports audio playing function, specifically, 3D format conversion processors
111 detach the digital audio and video signals in the first HDMI signals or the 2nd HDMI signals, and the digital audio and video signals are input to
Audio D/A converting unit 117, by 117 converting analogue audio signal of audio D/A converting unit, the analog audio signal is again
It is exported by video processor 104 to power amplifier unit 118 and carries out the earphone that audio broadcasting or output are connected to earphone interface 119.
Video processor 104 is connected with bluetooth module 120, video processor 104 according to the control of central processing unit 114,
Analog audio signal is emitted outward by the bluetooth module 120.Such as central processing unit 114 is according to bluetooth input by user
Audio emission instruct, control video processor 104 audio signal is exported to bluetooth module 120, then by bluetooth module 120 into
Row transmitting, user can wear bluetooth headset and receive above-mentioned audio signal.
It optionally, can be by UART side between central processing unit 114 and Android processor 109 and video processor 104
Formula communicates, and can be communicated between central processing unit 114 and 3D format conversion processors 111 by I2C, audio D/A converting unit
It can be communicated between 117 and 3D format conversion processors 111 by I2S.Central processing unit 114 and LED sequence controllers 1203
Between can be communicated by UART modes.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art are not departing from the principle of the present invention and objective
In the case of can make changes, modifications, substitutions and variations to the above described embodiments within the scope of the invention.
Claims (9)
1. a kind of portable DLP multimedia intelligents high in the clouds optical projection system, which is characterized in that including：Video input interface, for connecing
Receive the video data of signal source output；
Video processor, the video processor is connect with the video input interface, for input video input interface
Video data is converted to the first TTL signal；
Signal format converting unit, the signal format converting unit are connect with the video processor, for by the video
First TTL signal of processor output is converted to the first HDMI signals；
Storage medium interface, for connecting exterior storage medium and reading the video file in the exterior storage medium；
WiFi module, for carrying out wireless communication with external equipment or being connected to internet；
Android processor, the Android processor is connect with the storage medium interface and WIFI module, for the storage
The media data flow that the video file or WIFI module that Media Interface Connector is read receive is decoded broadcasting, while regard decoded
Frequency evidence is converted to the 2nd HDMI signals；
3D format conversion processors, the 3D format conversion processors connect with the signal format converting unit and Android processor
It connects, for the first HDMI signals or the 2nd HDMI signals to be directly changed into the second TTL signal or by described first
HDMI signals or the 2nd HDMI signals first carry out 3D format conversions and regenerate the second TTL signal；
DMD display drivers, the DMD display drivers are connect with the 3D format conversion processors, for according to described
Two TTL signals generate image drive signals；
Projection light machine is connect with the DMD display drivers, for being projected according to described image drive signal；
Central processing unit is connect with the video processor, Android processor and 3D format conversion processors, for according to user
The control instruction of input controls the video processor, Android processor and 3D format conversion processors；
Input module is connect with the central processing unit, for inputting the control instruction；
LED light source unit is connect with the central processing unit, for providing light source for the projection light machine.
2. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 1, which is characterized in that the 3D forms
Conversion processor is additionally operable to detach the digital audio and video signals in the first HDMI signals or the 2nd HDMI signals；
The 3D format conversion processors are connected with an audio D/A converting unit, the output terminal of the audio D/A converting unit
The video processor is connected to, power amplifier unit and earphone interface are connected on the video processor；The audio D/A turns
Unit is changed for the digital audio and video signals to be converted into analog audio signal, analog audio signal is input to the video processing
Device is exported by the video processor to power amplifier unit or earphone interface.
3. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 1, which is characterized in that the input mould
Block includes touch controlled key module, is connect with the central processing unit, and corresponding control instruction is generated for being touched according to user.
4. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 3, which is characterized in that the input mould
Block further includes infrared receiving module, is connect with the central processing unit, for receiving the control that user is emitted by IR remote controller
System instruction.
5. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 2, which is characterized in that at the video
Reason device is connected with bluetooth module, and the video processor passes through the analog audio signal according to the control of central processing unit
The bluetooth module emits outward.
6. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 1, which is characterized in that the video is defeated
Incoming interface includes USB interface, HDMI interface and AV interfaces, and the central processing unit controls institute according to control instruction input by user
State the switching that video processor inputs USB interface, HDMI interface and AV interfaces.
7. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 1, which is characterized in that the storage is situated between
Matter interface includes one or more of USB interface, OTG interfaces, SD card interface.
8. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 1, which is characterized in that at the Android
Reason device is also associated with Ethernet interface, and internet is accessed for passing through cable.
9. portable DLP multimedia intelligents high in the clouds optical projection system according to claim 1, which is characterized in that the LED light source
Unit includes LED light source, connect with the LED light source LED drive circuit to drive the LED light source and with the LED
Driving circuit connects the LED sequence controllers to control the LED light source sequential, the LED sequence controllers and the center
Processor connects.
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| CN201410737837.4A CN104378567B (en) | 2014-12-06 | 2014-12-06 | Portable DLP multimedia intelligents high in the clouds optical projection system |
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| CN201410737837.4A CN104378567B (en) | 2014-12-06 | 2014-12-06 | Portable DLP multimedia intelligents high in the clouds optical projection system |
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