CN101714032A - Device for processing optical control information - Google Patents
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Abstract
The embodiment of the invention discloses a device for processing optical control information, which comprises an optical display (104), a common laser pen (102) and an information processor (103), wherein the information processor (103) recognizes light spots emitted by the laser pen (102), performs corresponding processing according to the recognition result and finally transmits the processing result to other devices such as the optical display and the like. By using the device and a method of the invention, a user can realize the remote control of information input, convenient writing and information control by only using the common laser pen.
Description
Technical Field
The present invention relates to an optical control information processor, and more particularly to a laser spot control information processor.
Background
When people use a keyboard and a mouse to operate a computer in daily life, the people are limited in front of a desk, so that the moving range of the people is narrow! And the single input mode of keyboard + mouse limits the ability of people to control information.
People realize humanized information technology in a dream, and people can freely communicate with the information world. The information world with five colors can be seen, and the information world can be touched, written and freely controlled at will. The prior art has generally made many efforts to achieve this goal in the following respects:
1. wireless keyboard, wireless mouse. The wireless keyboard and the wireless mouse which use the short-distance wireless communication technology expand the moving range of people when operating the computer to a certain extent. However, the keyboard is large in size and inconvenient to carry and operate, and the mouse must be attached to the surface of an object when in use, so that the keyboard and the mouse can only be operated by sitting in front of a desk. And it is inconvenient to write and draw with a mouse.
2. Touch screen technology. The technology realizes intuitive and visual computer operation, and enables people to get rid of the limitation of a keyboard and a mouse to a certain extent. And in cooperation with professional recognition software, the touch screen can also realize handwriting input. According to its physical representation, it can be divided into two categories:
first touch-sensitive screen in kind: the device consists of a detection component and a touch screen controller which are arranged in front of a display screen. When a finger or other object touches a touch screen mounted on the front end of the display, the touched position is detected by the touch screen controller and sent to the host computer through an interface (e.g., RS-232 serial port, USB, etc.). The touch sensing of such a scheme is an electromagnetic induction type, a resistance pressure type, or the like. The disadvantage is that the touch screen cannot be made very large, since the larger it is, the lower the resolution, the bulkier and the more expensive it is, and the more cumbersome and easily damaged it is to operate.
Secondly, wireless locate mode touch-sensitive screen: the first type is a wireless positioning touch screen based on infrared and ultrasonic, and the basic principle is that infrared or ultrasonic signal detection arrays are arranged around a display screen to detect infrared or ultrasonic information sent by a controller, so that positioning is realized; the second type is a wireless positioning touch screen based on infrared laser technology, which generally adopts an optical imaging method, wherein an optical filter is added in front of a camera lens to filter out light except infrared light, and then an imaging image is analyzed to extract the position of a laser spot. The touch screen has the disadvantages that only infrared laser can be used, users cannot see where the light spot points, the operation is often performed by a feeling, and the accuracy and the speed of the operation are greatly influenced. In addition, the system can only use the infrared light spot to indicate the position, and the user needs to separately purchase a matched special key controller, which affects the universality of the product.
3. Optical display technology
At present, display screens with various sizes are available for people to use in different occasions. The early electronic tube type display devices have been gradually replaced by liquid crystal display panels. However, liquid crystal display screens are fragile and large screens are particularly expensive. In recent years, projection technology has been widely used, and great progress has been made in terms of projection brightness, bulb life, and the like. Pocket-sized portable projectors have also been put into use. However, these display devices are all single in function and can only be used as displays. The user needs to separately purchase the information processing apparatus.
4. Information processing technology
The information processing technology has been developed greatly, and a faster and smaller microprocessor is continuously put into use, which greatly enhances the information processing capability of people. However, as mentioned above, the current way of controlling information by people is mainly keyboard and mouse, the form is single, and it is difficult to realize general use by using touch screen technology.
Disclosure of Invention
In view of the above, the main objective of the embodiments of the present invention is to provide a method for controlling information based on optical principles, and more particularly, to an information processing apparatus using laser spot control, so as to free people from the display screen: the user can use a common laser pen as a controller, move around in a large space, and can control the information only by emitting 'light spots' to the display area.
In order to achieve the above purpose, the technical solution in the embodiment of the present invention is realized as follows:
an optical control information processing, comprising,
an optical display (104) for displaying information;
an optical controller (102) for sending an optical control signal (105) for directing the optical control signal (105) directly to the optical display (104) to form a light spot (106);
and the information processor (103) is provided with a microprocessor and a memory, the memory stores an information system message event processing list corresponding to the light spot characteristics, and the microprocessor triggers corresponding information system message events according to the list.
Wherein the optical display further comprises projecting using a projector.
The optical controller is characterized in that the optical controller also comprises a common laser lamp with the central wavelength of 650nm, 532nm or 630nm, and the power of the laser lamp is less than 5 milliwatts; the optical controller (507) is provided with a laser lamp switch control button, once the laser lamp is pressed, the laser lamp is turned on, and a laser beam is emitted to the optical display (104) to form a normally bright light spot (106); when a laser lamp control button on the optical controller (507) is lifted, the laser lamp is turned off, and the light spot (106) is turned off.
The optical controller is characterized by further comprising a laser pen, a page turning laser pen, a laser pointer, a laser indicator and a laser flashlight.
Characterized in that the information processor further comprises a light spot identification module (201) for identifying the light spot (106).
The microprocessor is characterized in that the microprocessor processes according to the identification information of the light spot and transmits the processed result to other information equipment.
The other information equipment is characterized by also comprising display equipment, network equipment and storage equipment.
The light spot identification module (201) is characterized by identifying the accurate pixel position of the light spot (106) relative to the calibration area (303) according to the image area shot by the camera system (301) and the light spot (106).
The light spot identification module (201) is characterized by comprising an optical filter (508) and a camera (509); wherein, the optical filter (508) adopts an optical filter which can transmit the central wavelength and filters out visible light with other wavelengths; the camera (509) adopts a CMOS or CCD camera to shoot the whole area (104), the obtained digital image is input into the information processing core (202) to be identified, and finally the characteristic information of the light spot (106) is extracted.
It is characterized in that the working process of the device comprises the following steps,
step a (513), a user controls the on/off of a laser point on the display screen through the on/off of a laser pen, and controls the position of the laser point on the display screen through rotating the direction of the laser beam emitted by the laser pen in the hand;
b (514), the camera continuously scans and obtains image data of the projection area, and meanwhile, the light spot identification system identifies the on/off and position characteristics of the laser spot according to the image data;
and step c (515), the microprocessor triggers corresponding events according to the information system message event processing list.
Wherein the information system message event handling list corresponding to the light spot feature comprises,
spot feature a (501), the on or off feature of the spot;
a message event A (502) which is a pressing or lifting event of the left button of the mouse of the information system mapped by the on or off characteristic a (501) of the light spot;
a light spot feature b (503), the position of the light spot on the display screen;
message event B (504), mapping the location feature B (503) of the light spot on the display screen to an information system event: moving the cursor to the precise position indicated by the light spot;
a light spot characteristic c (505), wherein the light spot keeps constantly bright at a fixed position on the display screen; message event C (506), keeping constantly bright feature C (505) for the light spot at a fixed position on the display screen mapped to information system event: right mouse click.
Characterized in that the microprocessor triggers corresponding information system message events according to the information system message event processing list corresponding to the light spot characteristics, comprising the following steps,
step a (516), setting the existing light spot record as no;
step b (517), the camera captures a new picture;
step c (518), the recognition system judges whether the new image obtained in the step b (517) has light spots, if so, the step d (519) is executed, and if not, the step e (520) is executed;
d (519), setting the cursor position of the information system according to the light spot position;
step e (520), judging whether the system records the light spot, if yes, executing step f (521), if not, executing step b (517);
step f (521), triggering a left key lifting event of the information system, and setting the existing light spot record as no;
step g (522), judge whether the system has already recorded the light spot, if no, carry out step h (523), if already recording, carry out step i (524);
step h (523), triggering a left key pressing event of the information system, and setting the existing light spot record as true;
step i (524), judging whether the duration time of the existing light spot exceeds the set right key exciting time and whether the position of the light spot is kept unchanged, if so, executing step j (525), and if not, executing step b (517); step j (525), triggering right click event of information system, setting existing light spot record as no.
Drawings
FIG. 1 is a block diagram of an optical control information processor system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical control according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an optical identification module according to an embodiment of the present invention;
wherein,
FIG. 3a is a schematic diagram of the operation of an optical recognition module
FIG. 3b is a flow chart of the operation of the optical recognition module
FIG. 3c is a schematic diagram of camera calibration
FIG. 3d is a flow chart of spot location identification
FIG. 4 is a block diagram of an optical controller module according to an embodiment of the present invention;
FIG. 5 is a diagram of an embodiment of a control system for a laser pointer;
FIG. 5a is a diagram of the relationship between the established spot characteristics and the information system processing events
FIG. 5b is a diagram of the hardware components of a conventional laser pointer control system
FIG. 5c is a diagram of a laser pen structure of a common laser pen control system
FIG. 5d is a flowchart of the operation of the control system of the laser pen
FIG. 5e is a flowchart of the corresponding event triggering process of the conventional laser pointer control system according to the corresponding relationship between the light spot characteristics and the information system events
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The invention is described in further detail below with reference to the figures and the examples of embodiments.
First, the system structure of the optical control information processor will be described,
fig. 1 shows a diagram of a light-operated information processor system (101) comprising an optical controller (102), an information processor (103), and an optical display (104);
an information processor (103) having functions of a microprocessor and a memory, storing a processing message corresponding to the light spot characteristics, and interpreting and processing the processing message by the microprocessor; an optical controller (102) for sending optical control signals (105), (105) directly to the light spot (106) forming unit (104); (103) the system is used for processing the current control information (105) of a user and comprehensively processing the information of other information equipment (107), such as network file transceiving, optical disc material content, audio and video files, storage equipment file reading and writing and the like; (104) the display device is used for displaying information, and can output audio and video in the modes of characters, graphs, videos, sounds and the like.
An optical control process:
FIG. 2 is a schematic diagram of optical control (abbreviated as light control); the figure (104) is an optical display screen; (102) an optical controller, which emits light rays to form a light spot (106) on a substrate (101); (103) an information processor; (103) the internal light spot identification module (201) identifies (106) and gives the information to the information processing core (202); (202) comprehensively processing various forms of information, and transmitting the part needing to be displayed in the processing result to a display module (203); (203) the control unit (101) performs display.
And (3) a light spot identification process:
FIG. 3 is a schematic diagram of the operation of the spot identification module;
wherein, fig. 3a is a working schematic diagram of the light spot identification module; (301) a camera system; (302) the whole image area is shot (301); (303) is a display area of the display; (304) a bright spot formed on (302) for light emitted from the optical controller (305); (301) continuously shooting (302), analyzing the shot content by using an image recognition processing technology, recognizing (303) the area (namely shooting scale) and the position of (304), and then calculating (304) the accurate pixel position relative to (303).
FIG. 3b is a flowchart of the operation of the spot identification module; (306) firstly, judging whether shooting calibration is needed according to whether shooting calibration is already carried out, if so, executing a step (307), and if not, executing a step (308); (307) aiming at carrying out camera calibration and eliminating geometric distortion generated by a camera system and determining a display area in an image; (308) identifying whether a valid control light spot exists in the image shot for the main part, if so, executing a step (309), otherwise, indicating that no valid light spot exists, and not performing any processing; (309) finding the position of the control point in the shot image relative to the display area; (310) converting the position of the control point relative to the display into an accurate pixel coordinate of the point on the display screen;
FIG. 3c is a camera calibration schematic; (311) an overall image captured by the camera system; (312) the area of the display in (311) is geometrically deformed due to the geometric distortion of the camera system, and the four vertexes of the rectangular display area are respectively recorded as A, B, C, D; (313) for controlling the spot, its position is denoted as Q; x, Y is a display pixel coordinate axis, and the method for calculating the X pixel coordinate at the position of the Q point is as follows: finding an intersection point P of AB and CD, an intersection point N of PQ and BD, BN/BD multiplied by the whole pixel width of the screen as an X pixel coordinate value of a Q point; the Y pixel coordinate method of the Q point is similar;
fig. 3d is a flow chart of spot location identification: step (314), firstly judging whether there is a qualified bright spot area, if yes, executing step (315), otherwise, indicating no effective light spot, and not performing any processing; step (315), taking out qualified bright spot areas; step (316), the minimum peripheral circle of the qualified bright spot area is calculated; step (317), the proportion of qualified bright spots in the circular area is calculated; step (318), judge whether the proportion meets the requirement, if yes, carry out step (319), if else, show there is no valid light spot, do not process any; and a step (319) of finding the relative position of the point in the captured image.
An optical controller:
FIG. 4 is a diagram of the optical controller module assembly; (401) the light source emitting module can emit a control light beam according to the control of the key module (402); (403) and the power module is used for supplying electric energy required by the work of the whole optical controller.
The working process of the common laser pen control system is as follows:
FIG. 5 is a diagram showing an implementation of a conventional laser pointer control system; if the system is used in the existing projection system, the projection area can be changed into a large-size optical touch screen, and the click touch can be carried out by using light spots inside the projection area only by using a common laser pen, so that the remote control information input is realized;
FIG. 5a shows the relationship between the laser spot characteristics and the information system processing events; (501) is the on or off characteristic of the light spot; (502) pressing or lifting an event for the left button of the mouse of the mapped information system (501); (503) the position of the light spot on the display screen; (504) for (503) mapping to information system events: moving the cursor to the precise position indicated by the light spot; (505) keeping the light spot always bright at a fixed position on the display screen; (506) for (505) mapping to information system events: clicking a right mouse button;
FIG. 5b is a hardware composition diagram of a control system of a conventional laser pointer; (202) for the information processing core, a microprocessing platform such as an Intel or AMD or ARM can be adopted, and the microprocessing platform comprises a central processing unit, a memory, a hard disk, a mainboard and the like; the display module (203) can adopt a VGA video card and is an interface for controlling the display screen (104) (202); projecting on a white screen or a white wall by using a projector to obtain a display screen (104); (507) a common laser pen is adopted as an optical controller, a common laser lamp with the central wavelength of 650nm, 532nm or 630nm is used, the power of the laser lamp is less than 5 milliwatts, and the laser lamp meets the civil standard; (507) a laser lamp switch control button is arranged on the laser lamp, and once the laser lamp is pressed down, the laser lamp is turned on to emit laser beams to (104) to form a normally bright light spot (106); (507) when the upper laser lamp control button is lifted, the laser lamp is turned off, and (106) is turned off; the light spot identification module (201) consists of an optical filter (508) and a camera (509); wherein (508) a filter which can transmit the wavelength of the laser lamp with the central wavelength of (507) is adopted to filter out the visible light with other wavelengths; (509) a CMOS or CCD camera is adopted to shoot the whole (104) area, the obtained digital image is input (202) to be identified, and finally the characteristic information of (106) is extracted;
FIG. 5c is a diagram of a laser pen structure of a general laser pen control system; (510) a common laser lamp with the central wavelength of 650nm, 532nm or 630nm is adopted, and the power requirement is less than 5 milliwatts so as to meet the civil standard; (511) for connecting a switch control button between (510) and a battery (512), the switch control button is turned on (510) upon (511) pressing, emits a laser beam, and is turned off (510) upon (511) lifting;
FIG. 5d is a flowchart illustrating the operation of a conventional laser pointer control system; step (513) is that the user controls the on/off of the laser point on the display screen through the on/off of the laser pen; the position of a laser point on a display screen is controlled by rotating the direction of the laser beam emitted by a laser pen in the hand; step (514) is that the camera continuously scans and obtains the image data of the projection area, and the light spot identification system identifies the on/off and position characteristics of the laser spot according to the image data; step (515) is that the microprocessor of the information system triggers the corresponding event according to the corresponding relationship between the light spot characteristics and the information system events;
FIG. 5e is a flowchart of the corresponding event triggering of the conventional laser pointer control system according to the corresponding relationship between the light spot characteristics and the information system events; step (516), setting the existing light spot record as no; step (517), the camera captures a new picture; step (518), the recognition system judges whether the new image obtained by step (517) has light spots, if so, the step (519) is executed, and if not, the step (520) is executed; step (519), setting the cursor position of the information system according to the light spot position; step (520), judging whether the system records the light spot, if so, executing step (521), otherwise, executing step (517); step (521), triggering a left key lifting event of an information system, and setting the existing light spot record as no; step 522, judging whether the system records the light spot, if not, executing step 523, if so, executing step 524; step (523), trigger the left key press event of the information system, set the existing spot record as true; step 524, judging whether the duration time of the existing light spot exceeds the set right key exciting time and whether the position of the light spot is kept unchanged, if so, executing step 525, and if not, executing step 517; and (525) triggering a right click event of the information system and setting whether the existing light spot is recorded as no.
By using the method and the device provided by the embodiment of the invention, the dependence of the second type of wireless positioning type touch screen on the special key controller of the second type of wireless positioning type touch screen is eliminated: the user realizes remote control clicking and remote control writing operations only by using the most common laser pen; thereby greatly saving the cost and promoting the universality of the key controller;
by using the method and the device provided by the embodiment of the invention, people are liberated from the side of the display screen, and the limitation of a wireless keyboard, a wireless mouse and a first-class wireless positioning type touch screen on the position of a user in use is broken through: the light spot operation is used, and the speed of light movement is fast and sensitive, so that a user only needs to slightly rotate a laser pen in the hand to enable the emitted laser spot to quickly move on the whole display screen; the user can hold the light controller to move around in a large space, and the operation can be realized as long as the light spot can be emitted to the place on the display area;
by using the method and the device provided by the embodiment of the invention, the functions of optical control, information processing and optical display are integrated, so that the deployment of users is very convenient: the screen can be projected at any position on the wall surface or the curtain, and even the screen can be projected to the ceiling or the ground; and the light controller does not need to contact the surface of the screen, and the abrasion of scratches and abrasion are not generated in the use process, so that the abrasion problem of a common touch screen is avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. An optical control information processor, comprising,
an optical display (104) for displaying information;
an optical controller (102) for sending an optical control signal (105) for directing the optical control signal (105) directly to the optical display (104) to form a light spot (106);
and the information processor (103) is provided with a microprocessor and a memory, the memory stores an information system message event processing list corresponding to the light spot characteristics, and the microprocessor triggers corresponding information system message events according to the list.
2. The apparatus of claim 1, wherein the optical display further comprises projecting using a projector.
3. The apparatus of claim 1, wherein the optical controller further comprises, using a common laser lamp centered at 650nm, 532nm, or 630nm, the laser lamp power being less than 5 milliwatts; the optical controller (507) is provided with a laser lamp switch control button, once the laser lamp is pressed, the laser lamp is turned on, and a laser beam is emitted to the optical display (104) to form a normally bright light spot (106); when a laser lamp control button on the optical controller (507) is lifted, the laser lamp is turned off, and the light spot (106) is turned off.
4. The apparatus of claim 3, wherein said optical controller further comprises a laser pointer, a page turning laser pointer, a laser torch.
5. The apparatus of claim 1, wherein said information processor further comprises a light spot identification module (201) for identifying said light spot (106).
6. The apparatus according to claim 5, wherein the microprocessor performs processing based on the identification information of the light spot, and transmits the result of the processing to other information devices.
7. The apparatus of claim 6, wherein the other information devices further comprise a display device, a network device, and a storage device.
8. The apparatus according to claim 5, wherein the light spot identification module (201) identifies the exact pixel position of the light spot (106) relative to the target area (303) based on the image area captured by the camera system (301) and the light spot (106).
9. The device according to claim 8, characterized in that the spot identification module (201) consists of a filter (508) and a camera (509); wherein, the optical filter (508) adopts an optical filter which can transmit the central wavelength and filters out visible light with other wavelengths; the camera (509) adopts a CMOS or CCD camera to shoot the whole area (104), the obtained digital image is input into the information processing core (202) to be identified, and finally the characteristic information of the light spot (106) is extracted.
10. Use of a device according to claim 1, characterised in that the workflow of the device comprises the steps of,
step a (513), a user controls the on/off of a laser point on the display screen through the on/off of a laser pen, and controls the position of the laser point on the display screen through rotating the direction of the laser beam emitted by the laser pen in the hand;
b (514), the camera continuously scans and obtains image data of the projection area, and meanwhile, the light spot identification system identifies the on/off and position characteristics of the laser spot according to the image data;
and step c (515), the microprocessor triggers corresponding events according to the information system message event processing list.
11. The apparatus of claim 1, wherein the information system message event handling list corresponding to the light point characteristic comprises,
spot feature a (501), the on or off feature of the spot;
a message event A (502) which is a pressing or lifting event of the left button of the mouse of the information system mapped by the on or off characteristic a (501) of the light spot;
a light spot feature b (503), the position of the light spot on the display screen;
message event B (504), mapping the location feature B (503) of the light spot on the display screen to an information system event: moving the cursor to the precise position indicated by the light spot;
a light spot characteristic c (505), wherein the light spot keeps constantly bright at a fixed position on the display screen;
message event C (506), keeping constantly bright feature C (505) for the light spot at a fixed position on the display screen mapped to information system event: right mouse click.
12. The device workflow of claim 10 wherein the microprocessor triggers the corresponding information system message event according to the information system message event handling list corresponding to the light spot characteristic, comprising the steps of,
step a (516), setting the existing light spot record as no;
step b (517), the camera captures a new picture;
step c (518), the recognition system judges whether the new image obtained in the step b (517) has light spots, if so, the step d (519) is executed, and if not, the step e (520) is executed;
d (519), setting the cursor position of the information system according to the light spot position;
step e (520), judging whether the system records the light spot, if yes, executing step f (521), if not, executing step b (517);
step f (521), triggering a left key lifting event of the information system, and setting the existing light spot record as no;
step g (522), judge whether the system has already recorded the light spot, if no, carry out step h (523), if already recording, carry out step i (524);
step h (523), triggering a left key pressing event of the information system, and setting the existing light spot record as true;
step i (524), judging whether the duration time of the existing light spot exceeds the set right key exciting time and whether the position of the light spot is kept unchanged, if so, executing step j (525), and if not, executing step b (517);
step j (525), triggering right click event of information system, setting existing light spot record as no.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654811A (en) * | 2011-05-27 | 2012-09-05 | 上海华博信息服务有限公司 | Interaction control method and device based on laser pen |
| WO2016188316A1 (en) * | 2016-01-21 | 2016-12-01 | 中兴通讯股份有限公司 | Control method, control device, projector and computer-readable storage medium |
| CN106293265A (en) * | 2016-07-26 | 2017-01-04 | 北京仁光科技有限公司 | Portable optical touch system and exchange method thereof |
| CN107229377A (en) * | 2016-03-26 | 2017-10-03 | 谭登峰 | Big visual angle catoptric imaging touch-control system |
| CN108415587A (en) * | 2018-04-04 | 2018-08-17 | 佛山市艾温特智能科技有限公司 | Scribing line remote control and scribing line generation method |
-
2009
- 2009-08-21 CN CN200910163072A patent/CN101714032A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654811A (en) * | 2011-05-27 | 2012-09-05 | 上海华博信息服务有限公司 | Interaction control method and device based on laser pen |
| WO2016188316A1 (en) * | 2016-01-21 | 2016-12-01 | 中兴通讯股份有限公司 | Control method, control device, projector and computer-readable storage medium |
| CN106993146A (en) * | 2016-01-21 | 2017-07-28 | 中兴通讯股份有限公司 | Control method, control device, projector |
| CN107229377A (en) * | 2016-03-26 | 2017-10-03 | 谭登峰 | Big visual angle catoptric imaging touch-control system |
| CN106293265A (en) * | 2016-07-26 | 2017-01-04 | 北京仁光科技有限公司 | Portable optical touch system and exchange method thereof |
| CN108415587A (en) * | 2018-04-04 | 2018-08-17 | 佛山市艾温特智能科技有限公司 | Scribing line remote control and scribing line generation method |
| CN108415587B (en) * | 2018-04-04 | 2021-05-11 | 新昌县水帘峡市政园林有限公司 | Remote control device for drawing line and drawing line generating method |
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