CN201203753Y - Low-voltage drive control system for projection screen - Google Patents
Low-voltage drive control system for projection screen Download PDFInfo
- Publication number
- CN201203753Y CN201203753Y CNU2008200947069U CN200820094706U CN201203753Y CN 201203753 Y CN201203753 Y CN 201203753Y CN U2008200947069 U CNU2008200947069 U CN U2008200947069U CN 200820094706 U CN200820094706 U CN 200820094706U CN 201203753 Y CN201203753 Y CN 201203753Y
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- projector
- projection screen
- low
- control system
- radio
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Abstract
The utility model discloses a projecting low voltage driving control system achieved by a radio communicating device, comprising a projecting screen and a projector; the projector is provided with a radio emitting device; the trigger signal detecting end of the radio emitting device is electrically connected to the low voltage port of the projector; the projecting screen is provided with a radio receiving device corresponding to the radio emitting device installed in the radio emitting device; the radio receiving device drives the electric motor in the projecting screen to work. The utility model is simple structured and easy to achieve; the radio communicating device automatically drives the projector to put down the projecting screen while opening the projector; after the use, the radio communicating device automatically drives the projector to put away the projecting screen while closing the projector, which significantly simplifies the operating steps and facilitates the use and avoids the damage when the projecting is forgot to put away.
Description
Affiliated technical field
The utility model discloses a kind of driving control system of projection screen, particularly a kind of projection screen low-voltage driving control system that realizes by wireless communication apparatus.
Background technology
Projection screen is of common occurrence in people's daily life, and existing projection screen all is to cooperate projector to use, and utilizes projector to shine on the projection screen, produces image.At present, the projection screen in the known field when not using, all needs projection screen is taken in the shell of projection screen, before use, by telepilot or by switch projection screen is put down again; After the use, by telepilot or by switch projection screen is packed up, it is complicated, inconvenient to use operation to go up again.After sometimes using, can forget and pack up projection screen, cause projection screen to be subjected to the pollution of dust easily, also may cause damage, influence drop shadow effect it because of carelessness.
Summary of the invention
Use the shortcoming of complicated operation, inconvenience at the above-mentioned projection screen of mentioning of the prior art, the utility model provides a kind of new projection screen control system, it is equipped with wireless launcher in projector, the trigger pip test side of wireless launcher is electrically connected with low-voltage signal port in the projector; Be equipped with in the projection screen and the corresponding radio receiver of wireless launcher in the projector, radio receiver drives the machine operation in the projection screen.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of projection screen low-voltage driving control system, comprise projection screen and projector, wireless launcher is installed in the projector, and the trigger pip test side of wireless launcher is electrically connected with low-voltage signal port in the projector; Be equipped with in the described projection screen and the corresponding radio receiver of wireless launcher in the projector, radio receiver drives the machine operation in the projection screen.
The technical scheme that its technical matters that solves the utility model adopts further comprises:
Described wireless launcher is installed in projector inside, perhaps is placed on the projector outside, by lead the low-voltage signal port in the projector is electrically connected with the trigger pip test side of wireless launcher.
Described radio receiver is installed in the enclosure of projection screen.
Low-voltage signal port in the described projector is+the 12V port or+the 5V port.
Described wireless launcher and radio receiver adopt the RF wireless communication apparatus to communicate.
The beneficial effects of the utility model are: the utility model is simple in structure, realize easily, it can drive projection screen automatically by wireless communication apparatus projection screen is put down when opening projector, after the use, can drive projection screen automatically by wireless communication apparatus again when closing projector projection screen is packed up, thereby simplify operation steps to a great extent, make things convenient for use, also avoided packing up projection screen, and it has been caused damage because of forgetting.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the utility model circuit principle structure block diagram.
Fig. 2 is the utility model projector partial circuit theory structure block diagram.
Fig. 3 is the utility model projection screen partial circuit theory structure block diagram.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection domain.
Please referring to accompanying drawing 1, the utility model mainly comprises the two large divisions: projector's part and projection screen part, and projector partly comprises projector and wireless launcher; Projection screen partly comprises projection screen and radio receiver.
Please referring to accompanying drawing 2, projector's partial circuit structure comprises that projector's circuit, MCU are micro-control unit, wireless launcher in the present embodiment, and MCU and wireless launcher constitute wireless launcher.The signal input part of MCU is connected to the low-voltage signal port in projector's circuit, and the signal output part of MCU is connected with the signal input part of wireless launcher.In the present embodiment, the low-voltage signal port in projector's circuit can be in the projector+5V port or be+12V port, and its purpose is to provide a trigger pip for MCU, and the signal input part of MCU is the trigger pip test side of wireless launcher.In the present embodiment, wireless launcher can be arranged on projector inside, also can be arranged on the projector outside, by lead the trigger pip test side is connected with the low-voltage signal port of projector circuit.
Please referring to accompanying drawing 3, projection screen partial circuit structure comprises wireless receiver, MCU, driving circuit, projection screen motor in the present embodiment, and wireless receiver, MCU and driving circuit constitute radio receiver.The signal input part of MCU is connected with the signal output part of wireless receiver, and the signal output part of MCU is connected with the signal input part of driving circuit, and driving circuit drives the projection screen machine operation.In the present embodiment, radio receiver is arranged on the inside of projection screen shell, when specifically implementing, also can be arranged on outside the projection screen shell, drives the projection screen machine operation by lead.
The utility model is when work, after powering on to projector, low-voltage signal port in projector's circuit promptly powers on simultaneously, MCU in the wireless launcher detects a rising edge pulse or detects high level, control wireless launcher immediately and send the order that descends to projection screen radio receiver partly, radio receiver promptly drives the projection screen motor projection screen is put down, uses; After using end, projector's outage, low-voltage signal port in projector's circuit is dead electricity simultaneously, MCU in the wireless launcher detects a negative edge pulse or detects low level, control wireless launcher immediately and send the radio receiver of order that rise to the projection screen part, radio receiver drives the projection screen motor projection screen is packed up after postponing 3～5 seconds.Putting down and pack up with the switch of projector of the utility model projection screen is synchronous, has simplified operation steps, has made things convenient for use.
In the present embodiment, wireless launcher and radio receiver all are to adopt the wireless communication apparatus of 433MHz to communicate, and when specifically implementing, also can adopt other wireless communication apparatus such as bluetooth, infrared ray to replace.
The utility model can be widely used in the various dynamoelectric projection screen of the prior art.
Claims (5)
1, a kind of projection screen low-voltage driving control system comprises projection screen and projector, it is characterized in that: in the described projector wireless launcher is installed, the trigger pip test side of wireless launcher is electrically connected with low-voltage signal port in the projector; Be equipped with in the described projection screen and the corresponding radio receiver of wireless launcher in the projector, radio receiver drives the machine operation in the projection screen.
2, projection screen low-voltage driving control system according to claim 1, it is characterized in that: described wireless launcher is installed in projector inside, perhaps be placed on the projector outside, the low-voltage signal port in the projector be electrically connected with the trigger pip test side of wireless launcher by lead.
3, projection screen low-voltage driving control system according to claim 1, it is characterized in that: described radio receiver is installed in the enclosure of projection screen.
4, projection screen low-voltage driving control system according to claim 1 is characterized in that: the low-voltage output mouth in the described projector for+5V port or+the 12V port.
5, projection screen low-voltage driving control system according to claim 1 is characterized in that: described wireless launcher and radio receiver adopt the RF wireless communication apparatus to communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200947069U CN201203753Y (en) | 2008-05-16 | 2008-05-16 | Low-voltage drive control system for projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200947069U CN201203753Y (en) | 2008-05-16 | 2008-05-16 | Low-voltage drive control system for projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203753Y true CN201203753Y (en) | 2009-03-04 |
Family
ID=40426065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200947069U Expired - Lifetime CN201203753Y (en) | 2008-05-16 | 2008-05-16 | Low-voltage drive control system for projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201203753Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508404A (en) * | 2011-11-02 | 2012-06-20 | 苏州佳世达光电有限公司 | Projection screen device, projection system and control method thereof |
| CN104035270A (en) * | 2014-06-10 | 2014-09-10 | 王敏 | Electric curtain with falling warning light |
-
2008
- 2008-05-16 CN CNU2008200947069U patent/CN201203753Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508404A (en) * | 2011-11-02 | 2012-06-20 | 苏州佳世达光电有限公司 | Projection screen device, projection system and control method thereof |
| CN102508404B (en) * | 2011-11-02 | 2014-01-15 | 苏州佳世达光电有限公司 | Projection screen device, projection system and control method thereof |
| CN104035270A (en) * | 2014-06-10 | 2014-09-10 | 王敏 | Electric curtain with falling warning light |
| CN104035270B (en) * | 2014-06-10 | 2015-11-18 | 王敏 | There is the electric curtain of landing warning lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |