CN204652539U - A kind of projecting apparatus expansion equipment - Google Patents
A kind of projecting apparatus expansion equipment Download PDFInfo
- Publication number
- CN204652539U CN204652539U CN201520199250.2U CN201520199250U CN204652539U CN 204652539 U CN204652539 U CN 204652539U CN 201520199250 U CN201520199250 U CN 201520199250U CN 204652539 U CN204652539 U CN 204652539U
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- China
- Prior art keywords
- projecting apparatus
- interface
- serial
- control
- expansion equipment
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of projecting apparatus expansion equipment, equipment itself connects USB flash disk, SD card, projecting apparatus is connected with VGA line, simultaneously, projecting apparatus control interface is connected by serial communication interface, use the core board of the microprocessor to have Cortex-A8 control chip as master controller, wherein be equipped with the operating system of energy displaying video, SD card interface and USB interface are as played file access interface, wherein master controller sends serial control signal by serial ports, controls projecting apparatus switch, brightness operation by projecting apparatus control interface.
Description
Technical field
The utility model relates to a kind of projecting apparatus expansion equipment, especially can coordinate conventional projector displaying video and can control projecting apparatus under the condition not having computer or video disc player.
Background technology
At present, projecting apparatus starts to spread in meeting office, home entertaining, and the projecting apparatus of main flow is generally only furnished with the video signal input interface such as VGA and HDMI of standard, is equipped with the serial line interface that can control its switch, brightness etc. simultaneously.But the projecting apparatus of main flow can not autonomous play multimedia resource.In order to energy play multimedia resource, the external equipment that computer or video disc player etc. have vision signal output function must be connected, but these equipment are general comparatively heavy, very inconvenient also uneconomical material benefit.
Even if comparatively high-grade multimedia projector possesses ability to play, but price and scaling difficulty, and if user uses new projecting apparatus then must face upgrade old equipment, cause not little waste unavoidably.
Utility model content
Need to connect to overcome existing projecting apparatus the inconvenience that heavy computer or video disc player bring, high-grade band playing function projecting apparatus valency is high and needs upgrade the deficiency of replacing legacy equipment, the utility model provides a kind of projecting apparatus expansion equipment, this projecting apparatus expansion equipment can not only replace computer or video disc player displaying video on the basis need not replacing conventional projector, and its own system of conveniently upgrading, control the conventional projector of different model.
The utility model solves the technical scheme that its technical problem adopts: use the core board of the microprocessor with Cortex-A8 control chip as master controller, wherein be equipped with the operating system of energy displaying video, SD card interface and USB interface are as played file access interface, wherein master controller sends serial control signal by serial ports, controls projecting apparatus switch, brightness operation by projecting apparatus control interface.By the USB interface of this kind of projecting apparatus expansion equipment to projecting apparatus outputting video signal.Reach can under the condition not connecing other external equipments displaying video and control projecting apparatus.
The beneficial effects of the utility model are, can when again not buying projector apparatus, and the various multimedia file of the broadcasting enabling projecting apparatus portable, cheap, structure is simple.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is catenation principle figure of the present utility model.
1. capacitance touch screens in figure, 2. system input interface, 3. Cortex-A8 control system, 4. serial control signal, 5.VGA vision signal, 6. conventional projector, 7. user control signal.
Embodiment
In FIG, be equipped with the control system (3) of Cortex-A8 chip, there is multimedia decoding ability, the multimedia file in USB flash disk, SD card (2) is read by system, the projecting apparatus control coding of main flow is on the market stored in control system (3), according to the setting of user's control action (7), send the start of serial control signal (4) the control projecting apparatus of correspondence, shutdown, brightness adjustment to projecting apparatus for different operating.Carry out man-machine interactive operation by touch screen (1), transfer the content that corresponding broadcasting is wanted, by the decoding of system, send signal to projecting apparatus (6) in the mode of VGA vision signal (5).
Claims (3)
1. a projecting apparatus expansion equipment, equipment itself connects USB flash disk, SD card, projecting apparatus is connected with VGA line, simultaneously, projecting apparatus control interface is connected by serial communication interface, use the core board of the microprocessor to have Cortex-A8 control chip as master controller, wherein be equipped with the operating system of energy displaying video, SD card interface and USB interface are as played file access interface, wherein master controller sends serial control signal by serial ports, controls projecting apparatus switch, brightness operation by projecting apparatus control interface.
2. projecting apparatus expansion equipment according to claim 1, is characterized in that: the serial signal interface that can export individually by self, controls projecting apparatus open and close, regulates brightness.
3. projecting apparatus expansion equipment according to claim 1, is characterized in that: can independent play-out content of multimedia and by VGA Signal transmissions to projecting apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199250.2U CN204652539U (en) | 2015-04-03 | 2015-04-03 | A kind of projecting apparatus expansion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199250.2U CN204652539U (en) | 2015-04-03 | 2015-04-03 | A kind of projecting apparatus expansion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204652539U true CN204652539U (en) | 2015-09-16 |
Family
ID=54105245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520199250.2U Expired - Fee Related CN204652539U (en) | 2015-04-03 | 2015-04-03 | A kind of projecting apparatus expansion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204652539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162018A (en) * | 2015-04-03 | 2016-11-23 | 云南师范大学 | A kind of projector expansion equipment |
| CN108900645A (en) * | 2018-09-05 | 2018-11-27 | 苏州工业园区服务外包职业学院 | projector cluster remote control management device, system and method |
-
2015
- 2015-04-03 CN CN201520199250.2U patent/CN204652539U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162018A (en) * | 2015-04-03 | 2016-11-23 | 云南师范大学 | A kind of projector expansion equipment |
| CN108900645A (en) * | 2018-09-05 | 2018-11-27 | 苏州工业园区服务外包职业学院 | projector cluster remote control management device, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160403 |