CN106162018A - A kind of projector expansion equipment - Google Patents
A kind of projector expansion equipment Download PDFInfo
- Publication number
- CN106162018A CN106162018A CN201510156851.XA CN201510156851A CN106162018A CN 106162018 A CN106162018 A CN 106162018A CN 201510156851 A CN201510156851 A CN 201510156851A CN 106162018 A CN106162018 A CN 106162018A
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- CN
- China
- Prior art keywords
- projector
- expansion equipment
- interface
- control
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention provides a kind of projector expansion equipment, and this projector expansion equipment can not only replace computer or video disc player to play video on the basis of need not replacing conventional projector, and its own system of conveniently upgrading, the conventional projector of control different model.The present invention uses the core board of the microprocessor to have Cortex-A8 control chip as master controller, there is SD card interface and USB interface as played file access interface, wherein master controller sends serial control signal by serial ports, controls Interface Controller projector switch, brightness operation by projector.Video signal is exported to projector by the USB interface of this projector expansion equipment.Reach to play video under conditions of not connecing other external equipments and control projector.
Description
Technical field
The present invention relates to a kind of projector expansion equipment, conventional projector especially can be coordinated under conditions of not having computer or video disc player to play video and projector can be controlled.
Background technology
At present, projector starts to spread in meeting office, home entertaining, and the projector of main flow is the most only furnished with the video signal input interface such as VGA and HDMI of standard, is equipped with a serial line interface that can control its switch, brightness etc. simultaneously.But the projector of main flow can not independently play multimedia resource.In order to be able to play multimedia resource, it is necessary to connect computer or video disc player etc. and there is the external equipment of video signal output function, but these equipment are general more heavy, the most uneconomical very inconvenient material benefit.
Even if more high-grade multimedia projector possesses ability to play, but price and scaling difficulty, and if user use new projector, the old equipment of renewal must be faced, cause the least waste unavoidably.
Summary of the invention
In order to overcome existing projector to need the inconvenience that the heavy computer of connection or video disc player bring, high-grade band playing function projector valency is high and needs to update the deficiency replacing legacy equipment, the present invention provides a kind of projector expansion equipment, this projector expansion equipment can not only replace computer or video disc player to play video on the basis of need not replacing conventional projector, and its own system of conveniently upgrading, control the conventional projector of different model.
The technical solution adopted for the present invention to solve the technical problems is: use is to have the core board of the microprocessor of Cortex-A8 control chip as master controller, wherein it is equipped with the operating system that can play video, SD card interface and USB interface are as played file access interface, wherein master controller sends serial control signal by serial ports, controls Interface Controller projector switch, brightness operation by projector.Video signal is exported to projector by the USB interface of this kind of projector expansion equipment.Reach to play video under conditions of not connecing other external equipments and control projector.
The invention has the beneficial effects as follows, can be in the case of the most again buying projector apparatus, the various multimedia file of broadcasting enabling projector portable, cheap, simple in construction.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the catenation principle figure of the present invention.
1. capacitance touch screen in figure, 2. system input interface, 3. Cortex-A8 control system, 4. serial control signal, 5.VGA video signal, 6. conventional projector, 7. user control signal.
Detailed description of the invention
In FIG, the control system (3) being equipped with Cortex-A8 chip is provided with operating system, there is multimedia decoding ability, the multimedia file in USB flash disk, SD card (2) is read by system, in control system (3), storage has the projector of main flow on the market to control coding, according to the setting of user's control action (7), the serial control signal (4) sending correspondence to projector for different operating controls the start of projector, shutdown, brightness adjustment.Carried out man-machine interactive operation by touch screen (1), transfer the corresponding content play and want, by the decoding of system, signal is transmitted in the way of VGA video signal (5) individual to projector (6).
Claims (4)
1. a projector expansion equipment, equipment itself connects USB flash disk, SD card, connects projector with VGA line, meanwhile, connects projector by serial communication interface and control interface.
Projector expansion equipment the most according to claim 1, is characterized in that: can control projector open and close individually by the serial signal interface of self output, regulate brightness.
Projector expansion equipment the most according to claim 1, is characterized in that: can independent play-out content of multimedia and passing through
VGA signal is transferred to projector.
Projector expansion equipment the most according to claim 1, is characterized in that: have Touch Screen, and user can select to play by touch control operation and be stored in the Playable content in the USB flash disk of insertion, SD card, and can handle projector in an identical manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156851.XA CN106162018A (en) | 2015-04-03 | 2015-04-03 | A kind of projector expansion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156851.XA CN106162018A (en) | 2015-04-03 | 2015-04-03 | A kind of projector expansion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106162018A true CN106162018A (en) | 2016-11-23 |
Family
ID=57338703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156851.XA Pending CN106162018A (en) | 2015-04-03 | 2015-04-03 | A kind of projector expansion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106162018A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448292A (en) * | 2016-11-28 | 2017-02-22 | 广西大学 | Intelligent software teaching system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854700Y (en) * | 2005-08-26 | 2007-01-03 | 李哲 | Radio filmslide player based on embedded system |
| CN101436351A (en) * | 2008-12-10 | 2009-05-20 | 宁波高新区阶梯科技有限公司 | Network multimedia center control system |
| CN202150193U (en) * | 2011-08-01 | 2012-02-22 | 刘慧卿 | Teaching system playing automatically and dynamically |
| CN204652539U (en) * | 2015-04-03 | 2015-09-16 | 云南师范大学 | A kind of projecting apparatus expansion equipment |
-
2015
- 2015-04-03 CN CN201510156851.XA patent/CN106162018A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854700Y (en) * | 2005-08-26 | 2007-01-03 | 李哲 | Radio filmslide player based on embedded system |
| CN101436351A (en) * | 2008-12-10 | 2009-05-20 | 宁波高新区阶梯科技有限公司 | Network multimedia center control system |
| CN202150193U (en) * | 2011-08-01 | 2012-02-22 | 刘慧卿 | Teaching system playing automatically and dynamically |
| CN204652539U (en) * | 2015-04-03 | 2015-09-16 | 云南师范大学 | A kind of projecting apparatus expansion equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448292A (en) * | 2016-11-28 | 2017-02-22 | 广西大学 | Intelligent software teaching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |