CN101859209A - Infrared detection device and method, infrared input device and figure user equipment - Google Patents
Infrared detection device and method, infrared input device and figure user equipment Download PDFInfo
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Abstract
In the scheme provided by the embodiment of the invention, an image of an infrared light source is shot by image acquisition equipment, the state information of the infrared light source is received by an infrared reception module, and characters are output according to the kinematic trajectory and the state information of the infrared light source, so that the input of the characters can be realized by utilizing the infrared light source.
Description
Technical field
The invention belongs to technical field of electronic equipment, be specifically related to a kind of infra-red ray detection device and method, infrared input device and figure user equipment.
Background technology
The input equipment of present existing realization man-machine interaction mainly contains, mouse, touch-screen, keyboard and touch pad etc.
Genius mouse claims mouse again, can be divided into mechanical mouse and optical mouse by the difference of its principle of work.Mechanical mouse mainly is made up of spin, roller and grating signal sensor.When dragging mouse, drive ball turns, spin drives roller again and rotates, be contained in the photoelectric pulse signal that the grating signal sensor of roller end produces and reflect the change in displacement of Genius mouse in vertical and horizontal direction, the mobile of cursor on the screen controlled in processing by computer program and conversion again.Optical mouse is by detecting the displacement of Genius mouse, displacement signal is converted to electric impulse signal, and moving of mouse pointer on the screen controlled in processing by program and conversion again.Optical mouse has replaced spin with photoelectric sensor.
Touch-screen is formed by touching detection part and touch screen controller.Touch detection part and be installed in the indicator screen front, be used to detect user touch location, send touch screen controller after the reception, and the main effect of touch screen controller is to receive touch information from touch point detection device, and converts it to contact coordinate.
And touch pad mainly is to utilize a special surface-mounted integrated circuit below the touch pad can ceaselessly measure and report out the track of touch, thereby finds out the action and the position of finger.
These above-mentioned input medias are not very convenient.And, more and more need a kind of input media more flexibly and easily along with development of technology, realize man-machine interaction.
Summary of the invention
In view of this, an aspect of of the present present invention provides a kind of infrared detection equipment, and input character easily comprises:
Image acquisition equipment is used for the image according to certain frequency shooting infrared light sources;
The infrared ray receiver module is used to receive the infrared signal of described infrared light sources emission, and from the infrared signal that receives parse state information;
Parsing module, be used for status information according to described infrared ray receiver module parsing, and the image of the infrared light sources in a period of time, taken of described image acquisition equipment, resolve described infrared light sources movement locus during this period of time, according to described movement locus output character.
Another aspect of the present invention provides a kind of infrared input device, comprising:
Control chip, infrared lamp and at least one button;
Described control chip is used for default status information being transferred in the infrared signal, and being launched described infrared signal by described infrared lamp when detecting button of described at least one button and press.
Another aspect of the present invention provides a kind of infrared detection method, comprising:
Take the image of infrared light sources according to certain frequency;
Receive the infrared signal of the emission of described infrared light sources, and from the infrared signal that receives parse state information;
According to described status information, and the image that described infrared light sources is taken in a period of time, resolve described infrared light sources movement locus during this period of time, according to described movement locus output character.
Above-mentioned device, method can utilize infrared ray input character comparatively easily, and cost are lower, and application scenarios is extensive.
Description of drawings:
The schematic block diagram of Fig. 1, a kind of infra-red ray detection device of providing for an embodiment;
Fig. 2, Fig. 3 are the application scenarios figure of another embodiment infrared input device;
A kind of schematic flow sheet that utilizes the input method of infrared light sources that Fig. 3 provides for another embodiment;
The infrared schematic flow sheet of thinking the light source detection method that Fig. 4 provides for another embodiment.
Embodiment:
For the present invention can better be understood, the invention will be further described below in conjunction with Figure of description.
In each embodiment of the present invention, character can comprise the character that all buttons on the general keyboard can be exported, for example, and control character, English letter, numeral, Chinese character, radical, Japanese character etc.; Wherein, control character can comprise again: moving symbol up and down, delete mark, carriage-return character etc.
Embodiment 1:
See also Fig. 1, a kind of infra-red ray detection device be provided, comprising:
Infrared ray receiver module 202 is used to receive the infrared signal of described infrared light sources emission, and from the infrared signal that receives parse state information.
Wherein, infrared light sources can be a pointolite, and in the infrared signal of this infrared light sources output, has comprised status information, and this status information is represented input pattern,
Can different input patterns be set by status information, for example, when status information is first status information of presetting, be keyboard mode, be used to import various characters; When status information is second status information of presetting, be mouse mode, be used for the coordinate information of input mouse, and can import various mouse action orders; When status information is the third state of presetting, be the telepilot pattern, be used for input and change various commands such as platform, accent platform; When status information was the four condition of presetting, the game paddle pattern was used to import various game operation orders.
Be understandable that the relation between status information and the input pattern also can be made amendment in the infra-red ray detection device operational process.
As for how status information being modulated into infrared signal, can be referring to the following examples.
As for concrete input mode, for example, the user can be within the imaging scope of image acquisition equipment, the movement locus of control infrared light sources, and image acquisition equipment will obtain the image of infrared light sources continuously according to certain frequency, by resolving these continuous pictures, parsing module can the acquisition point light source movement locus, and can obtain the character of the actual input of user according to movement locus.
Image acquisition equipment can be camera, video camera or digital camera, can take pictures according to certain frequency, and can export with digital format; Perhaps can export the video flowing of digital format.
If the time shutter is shorter, then the effect of catching can be better.Experiment confirm, the time shutter was that 30 frames/s or above frequency are obtained image less than 0.01 second according to frequency, can catch infrared light sources preferably, and recognition effect was better.In the image of imaging, the color of infrared light sources will be easy to the background colour in the picture shot.May be black as background colour, and infrared light sources can be rendered as white in photo.
The image of digital format, form by pixel one by one, the corresponding byte data of each pixel, there are notable difference in the data of the pixel correspondence of background colour black and the pixel of infrared light supply correspondence, define a two-dimensional array,, in array, travel through then in order to preserve the data of pixel, find the white dot of infrared light supply correspondence, thereby can find the position of infrared light sources in image.
The position of infrared light sources can adopt the form of coordinate to identify, and for example image is regarded as a coordinate axis, selects a coordinate, with (x, form y) is represented the position of infrared light sources.
Because infrared light sources may present a geometric configuration in image, for example be circular, oval, in order to obtain the position of infrared light sources, can get the center.Certainly, also can get other positions according to actual needs.
In a period of time, image acquisition equipment will get access to multiple image, by obtaining the coordinate of these image middle infrared (Mid-IR) light sources, then coordinate is together in series, and just can obtain the movement locus of infrared light sources.Here, can make smoothing processing to the movement locus of infrared light sources earlier.
Can set a storehouse in advance, movement locus is set up mapping relations with different character or control command, after obtaining movement locus, just can obtain corresponding character according to movement locus.
For example, can be with horizontal stroke from accomplishing, expression character 1; With horizontal stroke from right to left, expression character 2.When the movement locus that detects infrared light sources for from left to right the time, output 1; If horizontal stroke from right to left then exports 2.
When obtaining corresponding character according to movement locus, value that can bonding state information is determined.For example, when status information was 1, horizontal line from left to right represented 1; And when status information was 2, horizontal line from left to right represented 5.
Because may there be a certain distance in the track data of preserving in movement locus and the storehouse,, can adopt the corresponding same character of a plurality of tracks in order to increase the accuracy rate of identification.
The device that present embodiment provides can adopt integrated circuit board to realize.For example, this integrated circuit board comprises arm processor, camera, infrared receiver, infrared receiver is used for receiving infrared signal and resolving the status information that infrared signal is carried, camera is used to take the movement locus of infrared light sources, realizes the function of parsing module by the arm processor operation code; This integrated circuit board, further, can also 1 port, be used to export the positional information of various characters or infrared light sources etc.
Perhaps, the device that present embodiment provides also can adopt application-specific integrated circuit ASIC chip, FPGA (Field Programmable Gate Array) such as realizations such as FPGA, CPLD.
The device that present embodiment provides for example, can run on computer, mobile phone, the set-top box.
The device that provides in this enforcement can be exported corresponding character according to the movement locus of infrared light sources, and it is comparatively convenient to use, and cost is lower.
Further, the device that present embodiment provides can pass through the positional information of various types of interface output character information such as serial ports, parallel port, com port, USB mouth or cursor, can be connected to TV, PSP game machine etc. easily.
Embodiment 2:
See also Fig. 2, the infra-red ray detection device that Fig. 2 provides for embodiment and the Another Application scene of infrared input device.In scene shown in Figure 2, infrared input device can be bar-shaped or ring shape, is that example describes below with bar-shaped.
This track rod can comprise infrared lamp, control chip and at least one button.
Wherein, control chip can be gone into the infrared signal of certain frequency with status signal modulation according to the state of button, and be controlled infrared lamp and launch this infrared signal.
For example, button can be 3, be respectively A, B, C, when the A key is pressed, control chip modulates first status information into infrared signal, and this infrared signal can be the square-wave signal of 38K, and control chip, this first status information can be modulated into square-wave signal, and launch this infrared signal by infrared lamp.
The user can control this track rod, and the device that provides by embodiment 1 is to computer input character or positional information.As, when the user presses the A key, by motion track rod input character; When the user presses the B key, by motion track group input position information, and while output state information.
Further, this infrared input device can also comprise power supply, provides power drives to control module and infrared lamp.
The infrared input device that present embodiment provides, can be easily as the peripheral hardware of graphic user interface, input character or as mouse makes things convenient for the operation of graphic user interface.
As an example, the device that present embodiment provides can adopt the telepilot of televisor to realize.
Embodiment 3:
Present embodiment provides another to realize the implementation method of infra-red ray detection device, in the present embodiment, image acquisition equipment is a camera, be connected with PC, the pixel of camera picture shot can be 800 * 600, the track rod that employing the foregoing description provides is as input media, and the user can control this track rod and move within the imaging scope of camera.
And camera according to certain frequency, is taken the movement locus of track rod, and is input in the computer.As an example, this frequency can be 35 frame per seconds.
And the infrared ray receiver module can be an infrared radiation receiving circuit, receive infrared signal after, therefrom parse status information, and this status information be input in the computer.
And parsing module can be realized by software, moves this software by computer, when receiving first status information of infrared ray receiver module input, resolves the view data of image acquisition equipment input, obtains character according to the movement locus of track rod; When receiving second status information of infrared ray receiver module input, according to value output control commands corresponding, for example mouse left click, right click, double-click or the movement directive up and down etc. of this status information; When receiving the third state information of infrared ray receiver module input, the positional information of output infrared light sources, and output state information, and computer can be with the positional information of positional information as mouse, with the operational order of status information, as left click, right click etc. as mouse.
Be understandable that the computer in this enforcement pears also can be that other equipment with processing capacity are realized, as mobile phone.
The device that present embodiment provides, can be easily to the equipment input character of other graphic user interfaces or positional information etc.
Embodiment 4
Parsing module also can adopt chip to realize that integrated image obtains equipment, infrared ray receiver module on this chip, links to each other input character, control command or positional information with graphic user interface by USB mouth, parallel port, serial ports, com port etc.
This chip can link to each other with televisor, hand-held terminal device etc. by serial ports, also can be connected with notebook by USB mouth etc., and is simple and easy-to-use.
Below give one example, further specify the principle of work of parsing module.For example, if the movement locus of track rod is a serpentine, the picture that parsing module gets access to according to image acquisition equipment can parse the movement locus of track rod, if the value of status information is first state value, that corresponding serpentine is character S in the character library; If status information is second state value, the character of corresponding serpentine can T in the character library; After obtaining corresponding characters, the parsing module output character is given the peripheral hardware that links to each other with this chip.
The chip that present embodiment provides, can be easily to the equipment input character of other graphic user interfaces or positional information etc.
Embodiment 5
See also Fig. 3, the application scenarios of another infra-red ray detection device that Fig. 3 provides for present embodiment.The infra-red ray detection device that present embodiment provides, wherein image acquisition equipment is a camera, and the infrared ray receiver module is an infrared receiver, and parsing module can adopt software to realize, moves on set-top box; And camera, then to set-top box input picture or video flowing; The infrared ray receiver module is imported ultrared status information to set-top box.
Like this, just can import various operational orders to set-top box, as channel selection, input network address etc. with the track rod as input media.
As an example, this track rod can be a telepilot.
As another example, can comprise the chip that the foregoing description 4 provides in this televisor; This chip can receive the data of camera or infrared receiver input, and resolves.
By above-mentioned description as can be seen, the device that present embodiment provides can be with people's gesture, is converted into character or is input to computer or televisor as the positional information of cursor by infrared light sources, thereby can reach the effect of keyboard or mouse.
Embodiment 6
See also Fig. 4, the method that provides for another embodiment shown in Figure 4 can realize on the infra-red ray detection device in the above-described embodiments, comprises the steps:
S401, take the image of this infrared light sources according to certain frequency.
This step can be realized that in one example, image acquisition equipment can be camera or camera by image acquisition equipment.
This image can represent that the frequency of shooting can be more than or equal to 30 frames/s with binary digital format.Frequency can be adjusted as required, and frequency is higher, and effect generally can be better.
S402, receive the infrared signal of infrared light sources emission, and from the infrared signal that receives parse state information.
This step can realize by the infrared ray receiver module, specifically referring to the above embodiments, not give unnecessary details.
S403, according to above-mentioned status information, and the image of the infrared light sources of taking in a period of time is resolved infrared light sources movement locus during this period of time.
This step can be realized by parsing module.
S405, according to described movement locus output character.
The method that present embodiment provides can be exported corresponding character according to the movement locus of infrared light sources, and it is comparatively convenient to use, and cost is lower.
This method can be applicable to computer, mobile phone or televisor etc., and the method that present embodiment provides, its step can be passed through software code realization, are carried out by processor.
As an example, when being applied to computer, link to each other with computer by the USB mouth as camera, the photo of the infrared light sources that camera is taken, the internal memory that the infrared ray receiver module is sent to data by the USB mouth computer, CPU carries out the code of realizing parsing module, from internal memory, read the picture data and the status information of input, and resolve.
The apparatus and method of using the foregoing description to provide, all use the equipment of graphic user interface (GUI) to obtain cursor position and key information can to realize computing machine, mobile phone, PDA, game machine, navigator, POS machine, household electrical appliance, industrial instrument, wearable computer etc., realize the function of similar mouse, touch pad and touch-screen and keyboard etc.
The above only is a preferred embodiment, be not that the present invention is done any formal and substantial restriction, all those skilled in the art, in not breaking away from the technical solution of the present invention scope, when utilizing the above technology contents that discloses, and the equivalent variations of a little change of making, modification and differentiation is equivalent embodiment of the present invention; Simultaneously, all foundations essence of the present invention all still belongs in the scope of technical scheme of the present invention change, modification and the differentiation of any equivalent variations that above embodiment did.
Claims (10)
1. an infra-red ray detection device is characterized in that, comprising:
Image acquisition equipment is used for the image according to certain frequency shooting infrared light sources;
The infrared ray receiver module is used to receive the infrared signal of described infrared light sources emission, and from the infrared signal that receives parse state information;
Parsing module, be used for status information according to described infrared ray receiver module parsing, and the image of the infrared light sources in a period of time, taken of described image acquisition equipment, resolve described infrared light sources movement locus during this period of time, according to described movement locus output character.
2. device as claimed in claim 1 is characterized in that, described parsing module comprises:
The track acquisition module is used for the image of the infrared light sources that during this period of time obtains according to described image acquisition equipment, resolves described infrared light sources movement locus during this period of time;
The track storehouse comprises the corresponding relation between movement locus and the character;
Matching module is used for described track acquisition module is resolved resulting movement locus, with the movement locus coupling in the described track storehouse, obtains one or more corresponding characters according to the degree of coupling;
Output module is used to export the character that described matching module obtains.
3. device as claimed in claim 2; it is characterized in that; described track acquisition module; specifically be used for; the image that during this period of time obtains according to described image acquisition equipment; resolve the coordinate information of described infrared light sources in described image, obtain the movement locus of described infrared light sources according to described coordinate information.
4. as the arbitrary described device of claim 1-3, it is characterized in that described parsing module also is used for, export the positional information of the infrared light sources of described image acquisition equipment shooting, and export described status information.
5. an infrared input device is characterized in that, comprising:
Control chip, infrared lamp and at least one button;
Described control chip is used for default status information being transferred in the infrared signal, and being launched described infrared signal by described infrared lamp when detecting button of described at least one button and press.
6. device as claimed in claim 5 is characterized in that, described device is a ring shape or bar-shaped.
7. a graphical user interface apparatus is characterized in that, comprises arbitrary described infra-red ray detection device as claim 1-5, and described infra-red ray detection device is used to receive the infrared signal as claim 5 or 6 described infrared input device emissions.
8. device as claimed in claim 7 comprises computer, mobile phone, televisor, game machine, personal digital assistant, household electrical appliance and industrial instrumentation instrument.
9. device as claimed in claim 7 is characterized in that, described device is a televisor, and described infrared input device is a TV remote controller.
10. an infrared detection method is characterized in that, comprising:
Take the image of infrared light sources according to certain frequency;
Receive the infrared signal of the emission of described infrared light sources, and from the infrared signal that receives parse state information;
According to described status information, and the image that described infrared light sources is taken in a period of time, resolve described infrared light sources movement locus during this period of time, according to described movement locus output character.
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