CN108874274B - Projection control method and device - Google Patents
Projection control method and device Download PDFInfo
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- CN108874274B CN108874274B CN201810608364.6A CN201810608364A CN108874274B CN 108874274 B CN108874274 B CN 108874274B CN 201810608364 A CN201810608364 A CN 201810608364A CN 108874274 B CN108874274 B CN 108874274B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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Abstract
The invention discloses a projection control method and a device, wherein the method comprises the following steps: transmitting a first electromagnetic wave to a projection screen according to the triggered first control signal so as to guide the content displayed in the projection screen; according to the triggered second control signal, emitting a second electromagnetic wave for controlling the display of the projection screen to the projection screen; capturing a reflection signal formed by the second electromagnetic wave on the projection screen, and controlling the display content of the projection screen according to the reflection signal. The method can guide the display content on the projection screen, so that the audience can communicate with the user closely, and the display content of the projection screen can be controlled conveniently (such as switching pictures, calling pictures and the like) without using other additional equipment, thereby saving time and improving the projection effect.
Description
Technical Field
The invention relates to the field of intelligent equipment control, in particular to a projection control method and device.
Background
When projecting a picture using the projection device, the speaker may use the visible light emitter to indicate the content displayed on the projection screen, such as using visible red light emission to leave a shadow on the projection screen, so that the viewer can understand the speaker's narrative content in more detail in conjunction with the indicated projection screen. However, in the explanation process, if a user wants to control the content displayed on the projection screen (e.g., switch or update the projected picture), the user must use a corresponding device such as a computer or a projector to control, for example, use a mouse on the computer to control the corresponding projection software, so as to control the switching of the content displayed on the projection screen. The display content of the projection screen cannot be directly controlled by using a visible light emitter and other devices, and if the speaker is far away from the computer at the moment, the speaker must return to the computer for switching when switching the display content of the projection screen, so that the use is very inconvenient.
Disclosure of Invention
The embodiment of the invention aims to provide a projection control method and a projection control device, which can guide the content on a projection screen and conveniently control the display content of the projection screen without using other additional equipment.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme: a method of projection control, the method comprising:
transmitting a first electromagnetic wave to a projection screen according to the triggered first control signal so as to guide the content displayed in the projection screen;
according to the triggered second control signal, emitting a second electromagnetic wave for controlling the display of the projection screen to the projection screen;
capturing a reflection signal formed by the second electromagnetic wave on the projection screen, and controlling the display content of the projection screen according to the reflection signal.
Preferably, the first electromagnetic wave is a visible light wave, and the second electromagnetic wave is a non-visible electromagnetic wave.
Preferably, the emitting, to the projection screen, the second electromagnetic wave for controlling the display of the projection screen according to the triggered second control signal includes:
and emitting a second electromagnetic wave to the projection screen, and forming at least one point signal corresponding to the second electromagnetic wave on the projection screen.
Preferably, the capturing a reflection signal formed by the second electromagnetic wave on the screen, and controlling the display content of the projection screen according to the reflection signal includes:
and capturing the point signal, and generating a control command corresponding to the point signal according to the characteristics and/or the position information of the point signal so as to control the change of the projected display content.
Preferably, the capturing a reflection signal formed by the second electromagnetic wave on the screen, and controlling the display content of the projection screen according to the reflection signal includes:
and acquiring the control right of a cursor displayed on the projection screen based on the captured reflection signal so as to control the display content of the projection screen by using the cursor.
Preferably, the emitting the first electromagnetic wave to the projection screen according to the triggered first control signal includes: generating a first control signal according to a first operation, and transmitting the first electromagnetic wave according to the first control signal;
the emitting, according to the triggered second control signal, a second electromagnetic wave for controlling the display of the projection screen to the projection screen includes: generating a second control signal according to a second operation, and transmitting the second electromagnetic wave according to the second control signal; wherein the first operation and the second operation are operated in the same or different manners.
The embodiment of the invention also provides a projection control device, which comprises an emission module and projection equipment, wherein the emission module comprises a first emitter and a second emitter;
the first transmitter is configured to transmit a first electromagnetic wave to a projection screen to direct content displayed in the projection screen according to the triggered first control signal;
the second transmitter is configured to transmit a second electromagnetic wave for controlling the display of the projection screen to the projection screen according to the triggered second control signal;
the projection device is configured to capture a reflection signal formed by the second electromagnetic wave on the projection screen, and control the display content of the projection screen according to the reflection signal.
Preferably, the first electromagnetic wave is a visible light wave, and the second electromagnetic wave is a non-visible electromagnetic wave.
Preferably, the second transmitter is further configured to transmit a second electromagnetic wave to the projection screen, and form a point signal corresponding to at least one second electromagnetic wave on the projection screen.
Preferably, the projection device is further configured to: and capturing the point signal, and generating a control command corresponding to the point signal according to the characteristics and/or the position information of the point signal so as to control the change of the projected display content.
Preferably, the projection device further comprises a cursor controller;
the cursor controller is configured to obtain control right of a cursor displayed on the projection screen based on the captured reflection signal so as to control display content of the projection screen by using the cursor.
Preferably, the first transmitter is further configured to generate a first control signal according to a first operation and transmit the first electromagnetic wave according to the first signal;
the second transmitter is further configured to generate a second control signal according to a second operation and transmit the second electromagnetic wave according to the second signal; wherein the first operation and the second operation are operated in the same or different manners.
The embodiment of the invention has the beneficial effects that: the method can guide the display content on the projection screen, so that the audience can communicate with the user closely, and the display content of the projection screen can be controlled conveniently (such as switching pictures, calling pictures and the like) without using other additional equipment, thereby saving time and improving the projection effect.
Drawings
FIG. 1 is a flowchart of a projection control method according to an embodiment of the present invention;
fig. 2 is a schematic view of an application scenario of the projection control apparatus according to the embodiment of the present invention.
Description of the reference numerals
1-projection screen 2-projection device 3-emission module
4-first electromagnetic wave 5-second electromagnetic wave 6-cursor
Detailed Description
In order that those skilled in the art will better understand the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings, but the present invention is not limited thereto.
A projection control method according to an embodiment of the present invention can control display content projected on a projection screen 1 by a projection device 2, for example, the method can be used to guide and control the display content in the projection screen 1, that is, control the display content in the projection screen 1 during guidance (e.g., control the display content in the projection screen 1 before guidance and after guidance), as shown in fig. 1 and with reference to fig. 2, the method includes the following steps:
s1, according to the triggered first control signal, emitting the first electromagnetic wave 4 to the projection screen 1 to direct the content displayed in the projection screen 1. The first control signal may be triggered by the first trigger unit, such as the first trigger unit being triggered to generate the first control signal under a first operation (e.g., pressing, touching, etc.) of the user. For example, the emitting module 3 is installed with a first triggering unit, and a user can generate a first control signal by pressing the first triggering unit, and then the emitting module 3 can emit a first electromagnetic wave 4 to the projection screen 1 according to the first control signal, in an embodiment, the first electromagnetic wave 4 can be visible light, and the first electromagnetic wave 4 is irradiated onto the projection screen 1 in a non-divergent ray form and can generate a light spot, so that the content displayed on the projection screen 1 can be guided by the first electromagnetic wave 4, such as guiding to a viewer watching the projection screen 1. In addition, in the embodiment, the second electromagnetic wave 5 may be emitted to the projection screen 1 in the process of directing the content in the projection screen 1 by using the first electromagnetic wave 4, or the second electromagnetic wave 5 may be emitted to the projection screen 1 after directing the projection screen 1, and the method may be flexibly applied according to the actual use situation.
And S2, according to the triggered second control signal, emitting the second electromagnetic wave 5 for controlling the screen display of the projection screen 1 to the projection screen 1. The second control signal may be triggered by the first trigger unit (in a manner different from that of the first control signal), or may be triggered by a second trigger unit different from the first trigger unit, for example, the second trigger unit is triggered to generate the second control signal under a second operation (e.g., pressing, touching, etc.) of the user. The second electromagnetic wave 5 may be visible light or invisible light, and when visible light is different from the color of the first electromagnetic wave 4, the second electromagnetic wave 5 is emitted onto the projection screen 1.
And S3, capturing a reflection signal formed on the screen by the second electromagnetic wave, and controlling the display content of the projection screen according to the reflection signal. The reflected signal is a signal formed by the blocking and reflecting action of the display screen after the second electromagnetic wave is emitted onto the display screen. In one embodiment, the projection device 2 may capture the reflected signal of the second electromagnetic wave 5 formed on the screen, and may also capture the reflected signal of the second electromagnetic wave 5 formed on the screen by using other capture devices. The projection device 2 can perform corresponding control on the display content of the projection screen 1 according to the captured reflected signal, such as performing operations of switching, calling, closing and the like on the projected picture, for example, switching the first picture to the second picture, calling the second picture in the first picture, or closing other pictures except the first picture, and the like, thereby achieving the purpose of controlling the display content of the projection screen 1. In one embodiment, different control modes can be realized by controlling the emission mode of the second electromagnetic wave 5 to form different reflection signals, such as changing the frequency, intensity, and area of the second electromagnetic wave 5 on the projection screen 1; in another embodiment, a third electromagnetic wave different from the second electromagnetic wave 5 is emitted to the projection screen 1 by a corresponding triggering manner, so as to achieve the purpose of performing different control manners.
Preferably, the first electromagnetic wave 4 is a visible light wave and the second electromagnetic wave 5 is an invisible electromagnetic wave. The wavelength of the first electromagnetic wave 4 is different from the wavelength of the second electromagnetic wave 5, and the second electromagnetic wave 5 can be distinguished from the first electromagnetic wave 4, and the first electromagnetic wave 4 is a visible light wave, such as a red visible light ray, a visible light ray with other colors, and the like, so that a viewer watching the projection screen 1 can be guided by the visible light wave. The second electromagnetic wave 5 is invisible, so that when the user operates the emission module 3 to control the display content of the projection screen 1, the viewer cannot see the second electromagnetic wave 5, visual confusion of the viewer is avoided, and the display content of the projection screen 1 is concise.
In an embodiment of the present invention, the step of emitting the second electromagnetic wave 5 for controlling the display of the projection screen 1 to the projection screen 1 according to the triggered second control signal comprises the following steps: and emitting a second electromagnetic wave 5 to the projection screen 1, and forming at least one point signal corresponding to the second electromagnetic wave 5 on the projection screen 1. Specifically, the second electromagnetic wave 5 emits onto the projection screen 1 to generate one or more corresponding point signals reflecting the relevant characteristics of the second electromagnetic wave 5, and when the projection device 2 captures the point signals, the second electromagnetic wave 5 is confirmed, and the user is considered to have emitted the second electromagnetic wave 5, i.e. the control signal for controlling the projection screen 1 is emitted.
In an embodiment of the present invention, the step of capturing a reflection signal formed by the second electromagnetic wave on the screen, and controlling the display content of the projection screen according to the reflection signal includes the following steps: the point signals are captured, and control commands corresponding to the point signals are generated according to the characteristics and/or the position information of the point signals so as to control the change of the projected display content. Specifically, the point signal (one of the reflection signals) may be changed according to the change of the second electromagnetic wave 5, such as the change of frequency, intensity, or the position of occurrence. After capturing the point signal, the projection device 2 can control the projection screen 1 according to the point signal, thereby achieving the purpose that the user can only control the display content of the projection screen 1 by operating the transmitting module 3. In the specific control, the projection device 2 may implement different control modes based on the characteristics and/or the position information of the point signal, or generate different control commands, and then perform corresponding specific control on the display content of the projection screen 1 according to the different control commands.
In an embodiment of the present invention, with reference to fig. 2, the step of capturing a reflection signal formed by the second electromagnetic wave on the screen, and controlling the display content of the projection screen according to the reflection signal further includes the following steps: based on the captured reflection signal, the control right of the cursor 6 displayed on the projection screen 1 is acquired to control the display content of the projection screen 1 with the cursor 6. The cursor 6 is a means for controlling the display content of the projection screen 1, and the projected picture can be more flexibly controlled by the cursor 6, and in one embodiment, the cursor 6 may be an indicator (such as an arrow-shaped indicator) of a mouse. When the user uses the transmitting module 3 to transmit the second electromagnetic wave 5 to the projection screen 1, the control right of the cursor 6 displayed on the projection screen 1 is obtained through the projection device 2, so that the user can operate the cursor 6 through the transmitting module 3, further operate the display of the projection screen 1, and achieve the control purpose.
In an embodiment of the present invention, the step of emitting the first electromagnetic wave 4 to the projection screen 1 according to the triggered first control signal comprises the following steps: a first control signal is generated in accordance with the first operation, and a first electromagnetic wave 4 is emitted in accordance with the first signal. The first operation may be a pressing operation, a touching operation (for example, a touching operation performed on a touch screen) performed on the first trigger unit, and in one embodiment, a current operation may be determined to determine whether the current operation is the first operation, if the current operation conforms to a first preset operation, the current operation may be determined as the first operation, otherwise no response may be made, and if the current operation is determined as the first operation, the transmitting module 3 may be caused to transmit the first electromagnetic wave 4 according to the generated first control signal.
The emitting, according to the triggered second control signal, the second electromagnetic wave 5 to the projection screen 1 for controlling the display of the projection screen 1 includes: generating a second control signal according to the second operation, and emitting a second electromagnetic wave 5 according to the second control signal; and the first operation and the second operation have the same or different operation modes. Similar to the first operation, the second operation may also be an operation such as pressing or touching (for example, a touch operation performed on the touch screen) performed on the second trigger unit, and in one embodiment, a current operation may be determined to determine whether the current operation is the second operation, and if the current operation matches a second preset operation, the current operation may be determined to be the second operation, otherwise, no response may be made. It should be noted that the first operation and the second operation may be operated in the same manner or in different manners. When the first trigger unit is different from the second trigger unit, the first operation and the second operation can be operated in the same mode, and even if the control signals generated by the first trigger unit and the second trigger unit are the same, the first control signal and the second control signal are distinguished. When the first trigger unit and the second trigger unit are the same trigger unit, the operation modes of the first operation and the second operation may be different, so that the purpose of distinguishing the first control signal from the second control signal can be achieved.
The embodiment of the present application further provides a projection control apparatus, which has guiding and controlling functions, and can control the projection screen 1 sent by the projection device 2, for example, the content displayed by the projection screen 1 can be guided and controlled by operating the emission module 3, that is, the control such as transferring, switching, labeling and the like can be performed on the projected picture in the guiding process (for example, the projection screen 1 is controlled before guiding and after guiding), the projection control apparatus includes the emission module 3 and the projection device 2, the emission module includes a first emitter and a second emitter, and the description is performed with reference to fig. 2.
The first transmitter is configured to transmit a first electromagnetic wave 4 to the projection screen 1 to direct content displayed in the projection screen 1 in accordance with the triggered first control signal. The first control signal may be triggered by a first trigger unit installed on the transmitting module 3, such as a first trigger unit being triggered to generate the first control signal under a first operation (e.g., pressing, touch, etc.) of a user. For example, a first trigger unit is installed on the emission module 3, and a user generates a first control signal by pressing the first trigger unit, and then the first emitter can emit a first electromagnetic wave 4 to the projection screen 1 according to the first control signal, in one embodiment, the first electromagnetic wave 4 may be visible light, and the first electromagnetic wave 4 is irradiated onto the projection screen 1 in a non-divergent ray form and can generate a light spot, so that the content on the projection screen 1 can be guided by the first electromagnetic wave 4, such as to a viewer watching the projection screen 1. In addition, in the embodiment, the second electromagnetic wave 5 may be emitted to the projection screen 1 by the second emitter in the process of directing the content in the projection screen 1 by using the first electromagnetic wave 4, or the second electromagnetic wave 5 may be emitted to the projection screen 1 by the second emitter after the projection screen 1 is directed, and the method may be flexibly applied according to actual use situations.
The second transmitter is configured to transmit a second electromagnetic wave 5 for controlling the display of the projection screen 1 to the projection screen 1 according to the triggered second control signal. The second control signal may be triggered by the first trigger unit (in a manner different from that of the first control signal), or may be triggered by a second trigger unit different from the first trigger unit, for example, the second trigger unit is triggered to generate the second control signal under a second operation (e.g., pressing, touching, etc.) of the user. The second electromagnetic wave 5 may be visible light or invisible light, and when visible light is different from the color of the first electromagnetic wave 4, the second electromagnetic wave 5 is emitted by the second emitter onto the projection screen 1.
The projection device is configured to capture a reflection signal of the second electromagnetic wave formed on the projection screen 1, and control the display content of the projection screen 1 according to the reflection signal. In one embodiment, the projection device 2 may capture the reflected signal of the second electromagnetic wave 5 formed on the screen, and may also capture the reflected signal of the second electromagnetic wave 5 formed on the screen by using other capture devices. The projection device 2 can perform corresponding control on the display content of the projection screen 1 according to the captured reflected signal, such as performing operations of switching, calling, closing and the like on the projected picture, for example, switching the first picture to the second picture, calling the second picture in the first picture, or closing other pictures except the first picture, and the like, thereby achieving the purpose of controlling the display content of the projection screen 1. In one embodiment, different control modes can be realized by controlling the emission mode of the second electromagnetic wave 5 to form different reflection signals, such as changing the frequency, intensity, and area of the second electromagnetic wave 5 on the projection screen 1; in another embodiment, a third electromagnetic wave different from the second electromagnetic wave 5 is emitted to the projection screen 1 by a corresponding triggering manner, so as to achieve the purpose of performing different control manners.
Preferably, the first electromagnetic wave 4 is a visible light wave and the second electromagnetic wave 5 is an invisible electromagnetic wave. The wavelength of the first electromagnetic wave 4 is different from the wavelength of the second electromagnetic wave 5, and the second electromagnetic wave 5 can be distinguished from the first electromagnetic wave 4, and the first electromagnetic wave 4 is a visible light wave, such as a red visible light ray, a visible light ray with other colors, and the like, so that a viewer watching the projection screen 1 can be guided by the visible light wave. The second electromagnetic wave 5 is invisible, so that when the user operates the emission module 3 to control the projection screen 1, the viewer cannot see the second electromagnetic wave 5, visual confusion of the viewer is avoided, and the display content of the projection screen 1 is concise.
In one embodiment of the present invention, the second transmitter is further configured to transmit the second electromagnetic wave 5 to the projection screen 1, and form at least one point signal corresponding to the second electromagnetic wave 5 on the projection screen 1. Specifically, the second transmitter transmits the second electromagnetic wave 5 to the projection screen 1 to generate one or more corresponding point signals reflecting the relevant characteristics of the second electromagnetic wave 5, and when the projection device 2 captures the point signals, the second electromagnetic wave 5 is confirmed, and the user is considered to have sent the second electromagnetic wave 5, that is, a control signal for controlling the projection screen 1 is sent.
In one embodiment of the invention, the projection device is further configured to: the point signals are captured, and control commands corresponding to the point signals are generated according to the characteristics and/or the position information of the point signals so as to control the change of the projected display content. Specifically, the point signal (one of the reflection signals) may be changed according to the change of the second electromagnetic wave 5, such as the change of frequency, intensity, or the position of occurrence. After capturing the point signal, the projection device 2 can control the projection screen 1 according to the point signal, thereby achieving the purpose that the user can only control the display content of the projection screen 1 by operating the transmitting module 3. In the specific control, the projection device 2 may implement different control modes based on the characteristics and/or the position information of the point signal, or generate different control commands, and then perform corresponding specific control on the display content of the projection screen 1 according to the different control commands.
In one embodiment of the present invention, in conjunction with FIG. 2, projection device 2 further includes a cursor controller; the cursor controller is configured to take control authority of the cursor 6 displayed on the projection screen 1 based on the captured reflected signal to control the display content of the projection screen 1 with the cursor 6. The cursor 6 is a means for manipulating the display content of the projection screen 1, and the display content of the projection screen 1 can be controlled more flexibly through the cursor 6, and in one embodiment, the cursor 6 may be an indicator (such as an arrow-shaped indicator) of a mouse. When the second transmitter transmits the second electromagnetic wave 5 to the projection screen 1, the cursor controller obtains the control right of the cursor 6 displayed on the projection screen 1 through the projection device 2, so that the user can operate the cursor 6 through the transmitting module 3, further operate the display of the projection screen 1, and achieve the control purpose.
In an embodiment of the invention, the first transmitter is further configured to generate a first control signal according to the first operation and to transmit the first electromagnetic wave 4 according to the first signal. The first operation may be a pressing operation, a touching operation (e.g., a touching operation performed on a touch screen) performed on the first trigger unit, and in one embodiment, a current operation may be determined to determine whether the current operation is the first operation, if the current operation conforms to a first preset operation, the current operation may be determined as the first operation, otherwise no response may be made, and if the current operation is determined as the first operation, the first transmitter may cause the transmitting module 3 to transmit the first electromagnetic wave 4 according to the generated first control signal.
The second transmitter is further configured to generate a second control signal according to a second operation and to transmit a second electromagnetic wave 5 according to the second signal; and the first operation and the second operation have the same or different operation modes. Similar to the first operation, the second operation may also be an operation such as pressing or touching (for example, a touch operation performed on the touch screen) performed on the second trigger unit, and in one embodiment, a current operation may be determined to determine whether the current operation is the second operation, and if the current operation matches a second preset operation, the current operation may be determined to be the second operation, otherwise, no response may be made. It should be noted that the first operation and the second operation may be operated in the same manner or in different manners. When the first trigger unit is different from the second trigger unit, the first operation and the second operation can be operated in the same mode, and even if the control signals generated by the first trigger unit and the second trigger unit are the same, the first control signal and the second control signal are distinguished. When the first trigger unit and the second trigger unit are the same trigger unit, the operation modes of the first operation and the second operation may be different, so that the purpose of distinguishing the first control signal from the second control signal can be achieved.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (12)
1. A projection control method, characterized in that the method comprises:
transmitting a first electromagnetic wave to a projection screen according to the triggered first control signal so as to guide the content displayed in the projection screen;
emitting a second electromagnetic wave for controlling the display of the projection screen to the projection screen according to a triggered second control signal during or after the process of directing the content in the projection screen by using the first electromagnetic wave;
capturing a reflection signal formed by the second electromagnetic wave on the projection screen, and controlling the display content of the projection screen according to the reflection signal;
different reflection signals can be formed by controlling the emission mode of the second electromagnetic wave, so that different control modes for controlling the display content of the projection screen are formed, and the different control modes are realized by changing the frequency and the intensity of the second electromagnetic wave and the area irradiated on the projection screen.
2. The method of claim 1, wherein the first electromagnetic wave is a visible light wave and the second electromagnetic wave is a non-visible electromagnetic wave.
3. The method of claim 1, wherein said emitting a second electromagnetic wave to the projection screen for controlling the display of the projection screen according to the triggered second control signal comprises:
and emitting a second electromagnetic wave to the projection screen, and forming at least one point signal corresponding to the second electromagnetic wave on the projection screen.
4. The method of claim 3, wherein capturing a reflection signal of the second electromagnetic wave on the screen, and controlling the display content of the projection screen according to the reflection signal comprises:
and capturing the point signal, and generating a control command corresponding to the point signal according to the characteristics and/or the position information of the point signal so as to control the change of the projected display content.
5. The method of claim 1, wherein capturing a reflection signal of the second electromagnetic wave on the screen, and controlling the display content of the projection screen according to the reflection signal comprises:
and acquiring the control right of a cursor displayed on the projection screen based on the captured reflection signal so as to control the display content of the projection screen by using the cursor.
6. The method of claim 1, wherein said emitting the first electromagnetic wave to the projection screen based on the triggered first control signal comprises: generating a first control signal according to a first operation, and transmitting the first electromagnetic wave according to the first control signal;
the emitting, according to the triggered second control signal, a second electromagnetic wave for controlling the display of the projection screen to the projection screen includes: generating a second control signal according to a second operation, and transmitting the second electromagnetic wave according to the second control signal; wherein the first operation and the second operation are operated in the same or different manners.
7. A projection control device is characterized by comprising an emission module and a projection device, wherein the emission module comprises a first emitter and a second emitter;
the first transmitter is configured to transmit a first electromagnetic wave to a projection screen to direct content displayed in the projection screen according to the triggered first control signal;
during or after directing content in the projection screen with the first electromagnetic wave, the second transmitter is configured to transmit a second electromagnetic wave to the projection screen for controlling display of the projection screen according to a triggered second control signal;
the projection device is configured to capture a reflection signal formed by the second electromagnetic wave on the projection screen, and control the display content of the projection screen according to the reflection signal;
different reflection signals can be formed by controlling the emission mode of the second electromagnetic wave, so that different control modes for controlling the display content of the projection screen are formed, and the different control modes are realized by changing the frequency and the intensity of the second electromagnetic wave and the area irradiated on the projection screen.
8. The apparatus of claim 7, wherein the first electromagnetic wave is a visible light wave and the second electromagnetic wave is a non-visible electromagnetic wave.
9. The apparatus of claim 7, wherein the second transmitter is further configured to transmit a second electromagnetic wave to the projection screen and form at least one point signal corresponding to the second electromagnetic wave on the projection screen.
10. The apparatus of claim 9, wherein the projection device is further configured to: and capturing the point signal, and generating a control command corresponding to the point signal according to the characteristics and/or the position information of the point signal so as to control the change of the projected display content.
11. The apparatus of claim 7, wherein the projection device further comprises a cursor controller;
the cursor controller is configured to obtain control right of a cursor displayed on the projection screen based on the captured reflection signal so as to control display content of the projection screen by using the cursor.
12. The apparatus of claim 7, wherein the first transmitter is further configured to generate a first control signal according to a first operation and to transmit the first electromagnetic wave according to the first control signal;
the second transmitter is further configured to generate a second control signal according to a second operation and transmit the second electromagnetic wave according to the second control signal; wherein the first operation and the second operation are operated in the same or different manners.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631218A (en) * | 2009-02-03 | 2010-01-20 | 张毅 | Multimedia interactive projection machine |
| CN102622108A (en) * | 2012-01-18 | 2012-08-01 | 深圳市中科睿成智能科技有限公司 | Interactive projecting system and implementation method for same |
| CN103455207A (en) * | 2012-06-04 | 2013-12-18 | 爱国者数码科技有限公司 | Projection system with interaction function |
| CN105700715A (en) * | 2016-01-07 | 2016-06-22 | 上海斐讯数据通信技术有限公司 | Page-flipping pen capable of controlling computer cursor and control method therefor |
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| JP5874401B2 (en) * | 2012-01-06 | 2016-03-02 | セイコーエプソン株式会社 | Display device, projector, display system, and device switching method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631218A (en) * | 2009-02-03 | 2010-01-20 | 张毅 | Multimedia interactive projection machine |
| CN102622108A (en) * | 2012-01-18 | 2012-08-01 | 深圳市中科睿成智能科技有限公司 | Interactive projecting system and implementation method for same |
| CN103455207A (en) * | 2012-06-04 | 2013-12-18 | 爱国者数码科技有限公司 | Projection system with interaction function |
| CN105700715A (en) * | 2016-01-07 | 2016-06-22 | 上海斐讯数据通信技术有限公司 | Page-flipping pen capable of controlling computer cursor and control method therefor |
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