CN206894812U - Multimedia overhead projector equipment - Google Patents
Multimedia overhead projector equipment Download PDFInfo
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- CN206894812U CN206894812U CN201720790211.9U CN201720790211U CN206894812U CN 206894812 U CN206894812 U CN 206894812U CN 201720790211 U CN201720790211 U CN 201720790211U CN 206894812 U CN206894812 U CN 206894812U
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Abstract
The utility model discloses a kind of multimedia overhead projector equipment.Wherein, the multimedia transmission equipment includes：Communication interface, data processing equipment and image projection device, wherein, communication interface, the multi-medium data sent for receiving end/sending end equipment；Data processing equipment, it is connected with communication interface, for being parsed to multi-medium data, obtains voice data and view data, and view data is decoded, obtains decoded view data；Image projection device, it is connected with data processing equipment, for playing audio-fequency data and decoded view data.The output end that the utility model solves receiver needs one display device of connection to show multi-medium data, the high technical problem of caused wireless image-sound Transmission system cost.
Description
Technical field
Image transmission technology application field is the utility model is related to, in particular to a kind of multimedia overhead projector equipment.
Background technology
Promoted with the automated process of office system, product demonstration, session discussing etc. need to pass through multimedia file a surname
Under scene to more people, the utilization of multimedia transmission equipment is more extensive, and traditional multi-media transmission system can include：
Notebook computer, tablet personal computer, smart mobile phone, Intelligent worn device, projecting apparatus or LCDs, in multimedia file transmission
During usual way be by the display device such as the file in electric energy and projecting apparatus or television set company by using HDMI or VGA line
Connect, and then realize the transmission of image and video.
With the development of wifi technologies, wireless application transmitter instead of above-mentioned traditional direct-connected scheme, while real
Existing full HD lossless undelayed transmission, and software need not be installed, plug and play is easy to use.
Wherein, wireless image-sound transmission equipment scheme includes：It is made up of transmitter and receiver, transmitter connects the videos such as computer
Source, receiver connect the display devices such as projecting apparatus or television set；Part projecting apparatus and television set have also accessed the wireless function of throwing screen,
The general connection for supporting mobile phone or flat board.
But the radio transmission apparatus being made up of wireless launcher and wireless receiver has been able to reach image, video
The effect being wirelessly transferred, but during equipment use, receiver stills need to be connected with display device, i.e. it need to such as show more
Media data still needs to connect a display device in the output end of receiver, for showing the multi-medium data, such a nothing
The cost of line audio/video transmission system is too high, and connects up complicated with modulation image process.
Need to connect a display device for the above-mentioned output end due to receiver in the prior art and could show more matchmakers
The problem of volume data, caused wireless image-sound Transmission system cost are high, not yet proposes effective solution at present.
Utility model content
The utility model embodiment provides a kind of multimedia overhead projector equipment, at least to solve the output end needs of receiver
One display device of connection could show multi-medium data, the high technical problem of caused wireless image-sound Transmission system cost.
According to the one side of the utility model embodiment, there is provided a kind of multimedia overhead projector equipment, including：Communication interface,
Data processing equipment and image projection device, wherein, communication interface, the multi-medium data sent for receiving end/sending end equipment；
Data processing equipment, it is connected with communication interface, for being parsed to multi-medium data, obtains voice data and view data,
And view data is decoded, obtain decoded view data；Image projection device, it is connected, uses with data processing equipment
In playing audio-fequency data and decoded view data.
Optionally, communication interface, for being connected by default communication protocol with sending ending equipment, wherein, preset communication protocols
View includes：Wireless communication protocol.
Further, optionally, communication interface includes:Wireless communication interface, wherein, wireless communication interface, for receiving
What sending ending equipment was sent establishes communication link request, and the multi-medium data that receiving end/sending end equipment is sent.
Optionally, wireless communication interface includes：First kind communication interface and Second Type communication interface, wherein, first
Type communication interface, communication link request is established for what receiving end/sending end equipment was sent；Second Type communication interface, for connecing
Transmit and receive the multi-medium data of end equipment transmission.
Further, data processing equipment includes:Data decoder module and multimedia process module, wherein, at multimedia
Module is managed, for being parsed to multi-medium data, obtains voice data and view data；Data decoder module, with multimedia
Processing module connects, and for being decoded to view data, obtains decoded view data.
Optionally, multimedia process module includes:Signal conversion unit and signal separation unit, wherein, Signal separator list
Member, it is connected with signal conversion unit, for separating view data and voice data in multi-medium data；Signal conversion unit,
For being decoded to view data, the signal type of decoded view data is converted to by the first preset signals type
Two preset signals types, and the view data after voice data and conversion signal type is sent to image projection filled respectively
Put.
Optionally, image projection device includes:Light source driver module, ray machine head, projection control module and audio frequency control mould
Block, wherein, control module is projected, is connected with data decoder module, for controlling the dispaly state of decoded view data；Light
Source drive module, it is connected with ray machine head, for providing light source；Ray machine head, respectively with light source driver module and projection control module
Connection, pass through the view data after projecting control module modulation for output；Audio frequency control module, connect with multimedia process module
Connect, for exporting voice data.
Further, audio frequency control module includes：Audio-frequency amplifier, wherein, audio-frequency amplifier, for amplifying audio number
According to.
Optionally, multimedia overhead projector equipment also includes:Power module, external interface and operating key, wherein, power module,
For being powered to multimedia overhead projector equipment；External interface, for connecting external equipment；Operating key, for controlling multimedia overhead projector
Equipment shows multi-medium data.
In the utility model embodiment, by multi-medium data source device, for exporting multi-medium data；Transmitting terminal is set
It is standby, it is connected with multi-medium data source device, for the multi-medium data after coding to be sent to micro- projector equipment；Micro- projection is set
It is standby, it is connected with sending ending equipment, for showing multi-medium data, has reached video source end equipment and shown point between end equipment
The compatible purpose that rate difference is not brought, it is achieved thereby that compatible between lifting video source end equipment and display end equipment
Technique effect, and then the output end for solving receiver needs one display device of connection to show multi-medium data, causes
The high technical problem of wireless image-sound Transmission system cost.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the structural representation according to a kind of multimedia overhead projector equipment of the utility model embodiment；
Fig. 2 is the structural representation according to another multimedia overhead projector equipment of the utility model embodiment；
Fig. 3 is the structural representation according to another the multimedia overhead projector equipment of the utility model embodiment.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that be described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should
When the scope for belonging to the utility model protection.
A kind of multimedia overhead projector equipment is additionally provided according to the utility model embodiment, Fig. 1 is real according to the utility model
A kind of structural representation of multimedia overhead projector equipment of example is applied, as shown in figure 1, including：
Communication interface 11, data processing equipment 12 and image projection device 13, wherein, communication interface 11, sent out for receiving
The multi-medium data that sending end equipment is sent；Data processing equipment 12, it is connected with communication interface 11, for being carried out to multi-medium data
Parsing, obtains voice data and view data, and view data is decoded, and obtains decoded view data；Image is thrown
Image device 13, it is connected with data processing equipment 12, for playing audio-fequency data and decoded view data.
Specifically, more matchmakers that the receiving end/sending end equipment of communication interface 11 for the multimedia overhead projector equipment that the application provides is sent
Volume data, data processing equipment 12 are connected with the communication interface 11, the multimedia number received for parsing the communication interface 11
According to obtaining voice data and view data, by being decoded to the view data, obtain decoded view data, image
Projection arrangement 13 by being connected with the data processing equipment 12, for play the voice data and decoded view data (after
Continuous multimedia overhead projector equipment is substituted with micro- projector equipment).
In the utility model embodiment, by communication interface, data processing equipment and image projection device, wherein, lead to
Believe interface, the multi-medium data sent for receiving end/sending end equipment；Data processing equipment, be connected with communication interface, for pair
Multi-medium data is parsed, and obtains voice data and view data, and view data is decoded, and obtains decoded figure
As data；Image projection device, it is connected with data processing equipment, for playing audio-fequency data and decoded view data, reaches
The compatible purpose that video source end equipment is brought with showing the difference of rate respectively between end equipment is arrived, it is achieved thereby that lifting regards
Compatible technique effect between frequency source end equipment and display end equipment, and then the output end for solving receiver needs to connect
One display device could show multi-medium data, the high technical problem of caused wireless image-sound Transmission system cost.
Optionally, communication interface 11, for being connected by default communication protocol with sending ending equipment, wherein, preset communication
Agreement includes：Wireless communication protocol.
Further, optionally, communication interface 11 includes:Wireless communication interface, wherein, wireless communication interface, for connecing
Transmit and receive the communication link request of establishing of end equipment transmission, and the multi-medium data that receiving end/sending end equipment is sent.
Optionally, wireless communication interface includes：First kind communication interface and Second Type communication interface, wherein, first
Type communication interface, communication link request is established for what receiving end/sending end equipment was sent；Second Type communication interface, for connecing
Transmit and receive the multi-medium data of end equipment transmission.
Specifically, communication interface 11 can include：(that is, the Second Type communication that the application provides connects wifi communication interfaces
Mouthful) and infrared communication interface (that is, the first kind communication interface that the application provides), sending ending equipment passes through red in this application
Outer communication interface is established with the multimedia overhead projector device pairing that the application provides and connected, and realizes that data pass by wifi communication interfaces
It is defeated.In addition, for realizing that the infrared communication interface of matching function can also be bluetooth communication interface or WiFi communication interface
Deng wireless communication protocol class interface.
Wireless communication protocol can include：Wifi communication protocols and infrared communication protocol.
Further, data processing equipment 12 includes:Data decoder module and multimedia process module, wherein, multimedia
Processing module, for being parsed to multi-medium data, obtain voice data and view data；Data decoder module, with more matchmakers
Body processing module connects, and for being decoded to view data, obtains decoded view data.
Optionally, multimedia process module includes:Signal conversion unit and signal separation unit, wherein, Signal separator list
Member, it is connected with signal conversion unit, for separating view data and voice data in multi-medium data；Signal conversion unit,
For being decoded to view data, the signal type of decoded view data is converted to by the first preset signals type
Two preset signals types, and the view data after voice data and conversion signal type is sent to image projection filled respectively
Put.
Specifically, the signal separation unit in multimedia process module is by the audio number in multi-medium data in this application
Separated according to view data, by being solved with the signal conversion unit that the signal separation unit is connected to the view data
Code, by decoded image data by HDMI signals by being converted to R, G, B signal, by obtained R, G, B signal and is isolated
Voice data send to image projection device.
What is needed is that signal type in the above-mentioned view data of the application includes HDMI signals and rgb signal, is only said
The multi-media transmission system that bright the application provides, to realize that the multi-media transmission system that the application provides is defined, do not limit specifically
It is fixed.
Optionally, image projection device 13 includes:Light source driver module, ray machine head, projection control module and audio frequency control
Module, wherein, control module is projected, is connected with data decoder module, for controlling the dispaly state of decoded view data；
Light source driver module, it is connected with ray machine head, for providing light source；Ray machine head, control mould with light source driver module and projection respectively
Block connects, and passes through the view data after projecting control module modulation for output；Audio frequency control module, with multimedia process module
Connection, for exporting voice data.
Specifically, ray machine drive module is used to drive ray machine head in image projection device 13, the polychromatic source of ray machine head leads to
Coloured light corresponding to the view data of light source driver module output projection control module output, audio frequency control module are crossed, output corresponds to
The voice data of the view data, wherein, projection control module can be used for adjusting the resolution ratio of the view data, angle of image
The optical parametrics such as degree, brightness of image, to cause the view data in multi-medium data is showed during ray machine head projects.
Further, audio frequency control module includes：Audio-frequency amplifier, wherein, audio-frequency amplifier, for amplifying audio number
According to.
Specifically, the audio-frequency amplifier in audio frequency control module, for the voice data in multi-medium data to be carried out into letter
Number amplification, clearly to play in the form of simulating model in playing process sound intermediate frequency data.
Optionally, the multimedia overhead projector equipment that the application provides also includes:Power module, external interface and operating key, its
In, power module, for being powered to multimedia overhead projector equipment；External interface, for connecting external equipment；Operating key, for controlling
Multimedia overhead projector equipment processed shows multi-medium data.
, can be with specifically, the power module for the multimedia overhead projector equipment that the application provides corresponds to the power supply of sending ending equipment
Can also be the multimedia overhead projector that the application provides to be embedded in the built-in power of the multimedia overhead projector equipment of the application offer
The external power supply of equipment, the form of the external power supply include dc source and/or AC power；
External interface, in the case where audio frequency control module output voice data is limited in one's ability, it can pass through in the application
The external interface accesses stereo set, to meet that audio plays demand；
Operating key, it can be used for adjusting the focal length during multimedia overhead projector equipment projected image of the application offer, image
Broadcasting speed and show order etc..
The application above-mentioned example is only to illustrate the multimedia overhead projector equipment of the application offer, to realize that the application provides more
Media projection equipment is defined, and does not limit specifically.
To sum up, Fig. 2 is according to the structural representation of another multimedia overhead projector equipment of the utility model embodiment, is such as schemed
Shown in 2, the multimedia overhead projector equipment that the application provides is specific as follows：
As shown in Fig. 2 on hardware configuration, multimedia overhead projector equipment includes 5 modules：Power module 21, it is wirelessly transferred
Module 22, video processing module 23, projection control module 24 and ray machine display module 25.
Power module 21 needs to provide correct voltage and enough driving currents for whole system.In order to ensure using upper
It is convenient, receive and include battery pack inside micro- projector equipment.Power module needs to design charging circuit, and external power supply power supply port can
To charge the battery, and meet equipment normal work.During power supply is realized, according to the demand of modules, correct confession is designed
Electric module, meanwhile, core power supply and projection control system need to do low power dissipation design.
Wireless transport module 22 is using the WiFi modules of positive group, and during normal work, WiFi receives data, and by counting safely
Packet is transferred to multimedia by word input and output (Secure Digital Input and Output, abbreviation SDIO) interface
Processor.
Video processing module 23 is external double using Intelligent set top box workbook chip (System on Chip, abbreviation SOC)
Times speed synchronous DRAM (Double Data Rate SDRAM, abbreviation DDR) and Flash composition minimum systems.
The decoding of vision signal is completed, and exports HDMI signals.HDMI signals are changed by receiving, and vision signal is separated into R, G, B
Signal, and projection control module 24 is transmitted to, voice data directly exports through playback audio amplifier.
The input signal of control module 24 is projected, can be the decoded signal of master controller or peripheral interface
HDMI the or VGA signals of access.Two kinds of signals enter projector controller after Video Quality Metric chip, and with digital micro-mirror device
(Digital Micro Mirror Device, abbreviation DMD) chip is anti-by adjusting when light source is injected as image device
Penetrate light and realize image projection.
The light source of ray machine head is tri- kinds of illuminators of RGB LED in ray machine display module 25, is to be by light source driving circuit
System provides brightness enough, reliable and stable light sources.By controlling the order of three kinds of color light emitters to light, pass through colour wheel, refraction
Come out on dmd chip, and by lens projects, wherein, light source driving circuit can be expressed as LED light source driving in Fig. 2.
The multimedia overhead projector equipment that the application provides has projecting function, can throw the image information received in real time
Shadow comes out, it is not necessary in external connection display equipment.
In addition, the multimedia overhead projector equipment that the application provides also includes support, for adjusting multimedia overhead projector equipment
Position height and angle, as shown in figure 3, Fig. 3 is the knot according to another the multimedia overhead projector equipment of the utility model embodiment
Structure schematic diagram.
As shown in figure 3, Fig. 3 is the external structure of multimedia overhead projector equipment, wherein, multimedia overhead projector equipment is except above-mentioned
Outside, in addition to：Camera lens 31, casing 32, support 33, loudspeaker 34, external interface 35, thermovent 36, infrared receiver, roller focusing
37th, button 38, antenna and power interface, wherein,
Camera lens 31, positioned at the side of casing, for projecting multi-medium data, the camera lens belongs to ray machine display module in Fig. 2
A part in 25；
Support 33, positioned at the bottom of casing 32, for supporting multimedia overhead projector equipment, in addition, the branch that the application provides
Frame 33 includes：Adjustment height support, multimedia overhead projector equipment can be controlled by the length of adjusting bracket according to the demand of projection
Height；
Loudspeaker 34, for playing audio-fequency data；
External interface 35 includes：External audio frequency interface 351, USB interface 352, HDMI 353 and USB interface, for connecing
Enter external equipment, such as the equipment such as sound equipment, mouse, keyboard or video source, the external interface shown in Fig. 3 is only what the application provided
Part in multimedia overhead projector equipment, only realize that the multimedia overhead projector equipment that the application provides is defined, do not limit specifically；
Thermovent 36, for distributing caused heat in multimedia overhead projector equipment；
Infrared receiver, for receiving the relevant informations such as the switching on and shutting down of transmitting terminal, pairing, switching, screen locking；
Roller focusing 37, the burnt section of the view data for adjusting the projection of camera lens 31, to cause the view data of broadcasting clear
It is clear；
Button 38 includes：Switch 381, automatic focusing key, information source switch key 382 and volume control multiplexing key 383 are switched, is used
In the currently playing multimedia of multimedia overhead projector facility switching machine, Switch Video source and the broadcasting or pause of control the application offer
Data and the volume (view data and voice data) that the multiplexing adjustment voice data of key 383 is controlled by volume；
Antenna, for more stable reception WiFi signal；
Power interface, for providing the power interface of equipment normal use；
Casing 32, for carrying camera lens 31, casing 32, support 33, loudspeaker 34, external interface 35, thermovent 36, infrared connecing
Receipts, roller focusing 37, button 38, antenna and power interface.
It should be noted that the multimedia overhead projector equipment that the application provides is compatible outer between equipment is realized, also
Avoiding display terminal in the prior art or video source end equipment needs the form of addition software program to realize wireless screen projection function,
And the application directly displays multimedia number by the form of hardware after the source of multimedia data of sending ending equipment transmission is received
The multi-medium data transmitted according to source device, has broken limitation of the prior art to equipment, and on multi-medium data shows by
In not needing extra addition software program, so that it is more efficient to obtain showing for multi-medium data.
Above-mentioned the utility model embodiment sequence number is for illustration only, does not represent the quality of embodiment.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (8)
- A kind of 1. multimedia overhead projector equipment, it is characterised in that including:Communication interface, data processing equipment, image projection device, Wherein,The communication interface, the multi-medium data sent for receiving end/sending end equipment；The data processing equipment, it is connected with the communication interface, for being parsed to the multi-medium data, obtains audio Data and view data, and described image data are decoded, obtain decoded described image data；Described image projection arrangement, it is connected with the data processing equipment, for playing audio data and decoded institute State view data.
- 2. multimedia overhead projector equipment according to claim 1, it is characterised in that communication interface, for passing through default communication Agreement is connected with sending ending equipment, wherein, default communication protocol includes：Wireless communication protocol.
- 3. multimedia overhead projector equipment according to claim 2, it is characterised in that the communication interface includes:Radio communication Interface, wherein,The wireless communication interface, communication link request is established for receive that the sending ending equipment sends, and described in receiving The multi-medium data that sending ending equipment is sent.
- 4. multimedia overhead projector equipment according to claim 3, it is characterised in that the wireless communication interface includes：First Type communication interface and Second Type communication interface, wherein,The first kind communication interface, communication link request is established for receive that the sending ending equipment sends；The Second Type communication interface, the multi-medium data sent for receiving the sending ending equipment.
- 5. multimedia overhead projector equipment according to claim 1, it is characterised in that the data processing equipment includes:Data Decoder module and multimedia process module, wherein,The multimedia process module, for being parsed to the multi-medium data, obtain voice data and view data；The data decoder module, is connected with the multimedia process module, for being decoded to described image data, obtains Decoded described image data.
- 6. multimedia overhead projector equipment according to claim 5, it is characterised in that the multimedia process module includes:Letter Number converting unit and signal separation unit, wherein,The signal separation unit, it is connected with the signal conversion unit, for separating the picture number in the multi-medium data According to and voice data；The signal conversion unit, for being decoded to described image data, by the signal of decoded described image data Type is converted to the second preset signals type by the first preset signals type, and respectively by the voice data and conversion signal Described image data after type are sent to described image projection arrangement.
- 7. multimedia overhead projector equipment according to claim 5, it is characterised in that described image projection arrangement includes:Light source Drive module, ray machine head, projection control module and audio frequency control module, wherein,The projection control module, it is connected with the data decoder module, for controlling the decoded described image data Dispaly state；The light source driver module, it is connected with the ray machine head, for providing light source；The ray machine head, it is connected respectively with the light source driver module and the projection control module, for exporting by described Project the described image data after control module modulation；The audio frequency control module, is connected with the multimedia process module, for exporting the voice data；Wherein, it is described Audio frequency control module includes：Audio-frequency amplifier, wherein, the audio-frequency amplifier, for amplifying the voice data.
- 8. multimedia overhead projector equipment according to claim 1, it is characterised in that the multimedia overhead projector equipment also includes: Power module, external interface and operating key, wherein,The power module, for being powered to the multimedia overhead projector equipment；The external interface, for connecting external equipment；The operating key, for controlling the multimedia overhead projector equipment to show the multi-medium data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790211.9U CN206894812U (en) | 2017-06-30 | 2017-06-30 | Multimedia overhead projector equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790211.9U CN206894812U (en) | 2017-06-30 | 2017-06-30 | Multimedia overhead projector equipment |
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| Publication Number | Publication Date |
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| CN206894812U true CN206894812U (en) | 2018-01-16 |
Family
ID=61298174
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|---|---|---|---|
| CN201720790211.9U Active CN206894812U (en) | 2017-06-30 | 2017-06-30 | Multimedia overhead projector equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584754A (en) * | 2018-12-03 | 2019-04-05 | 哈尔滨工业大学 | A kind of highway 3D projection fingerpost |
| CN112423048A (en) * | 2020-10-28 | 2021-02-26 | 西安万像电子科技有限公司 | Screen projection system |
| CN113689349A (en) * | 2021-08-20 | 2021-11-23 | 广东海洋大学 | High-resolution area selection launching device and method for image denoising detection |
-
2017
- 2017-06-30 CN CN201720790211.9U patent/CN206894812U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584754A (en) * | 2018-12-03 | 2019-04-05 | 哈尔滨工业大学 | A kind of highway 3D projection fingerpost |
| CN109584754B (en) * | 2018-12-03 | 2020-12-11 | 哈尔滨工业大学 | 3D projection road directing sign for expressway |
| CN112423048A (en) * | 2020-10-28 | 2021-02-26 | 西安万像电子科技有限公司 | Screen projection system |
| CN113689349A (en) * | 2021-08-20 | 2021-11-23 | 广东海洋大学 | High-resolution area selection launching device and method for image denoising detection |
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