CN109407903A - A kind of electronic writing board and its information processing method based on infrared technique - Google Patents
A kind of electronic writing board and its information processing method based on infrared technique Download PDFInfo
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- CN109407903A CN109407903A CN201811546219.6A CN201811546219A CN109407903A CN 109407903 A CN109407903 A CN 109407903A CN 201811546219 A CN201811546219 A CN 201811546219A CN 109407903 A CN109407903 A CN 109407903A
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Classifications
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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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- 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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- 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
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
Abstract
A kind of electronic writing board and its information processing method based on infrared technique, it is related to electronic instruction performance technology field, including clipboard ontology, mobile bracket, OPS host, double nip unit and pushbutton unit, by including infrared touch-control frame, liquid crystal display, OPS host, double nip unit and pushbutton unit in clipboard ontology, cooperate with the processor built in OPS host and OPS host, using off-line identification, by the content recognition of writing at corresponding text information such as Chinese character, letter, number.The original copy of writing and the text of identification can be saved in simultaneously and be locally stored, and can also be transferred to external memory by USB3.0.Gesture identification realizes the switching write and wipe book by judgement.Can external HDMI show equipment, realize multi-screen expansion.
Description
Technical field
The present invention relates to electronic instruction performance technology field, especially a kind of electronic writing board based on infrared technique and its
Information processing method.
Background technique
With the development of electronic technology, there has also been very big development for teaching displaying mode, from traditional clipboard, to wall hanging
Formula projection writing plate goes so far as current electronic whiteboard mode.At this stage it is International or National in the market, it is representative
Electronic whiteboard have the electronic whiteboards such as induction, infrared-type, resistance-type, ultrasonic type.Traditional clipboard, which has, to be easy
It generates dust and the later period is difficult to the shortcomings that wiping, have an impact on health, influence writing effect, in addition, traditional clipboard does not have
There is computer to assist, writing on the blackboard can not be saved, so that the reviewing knowledge already acquired after teaching or meeting is difficult to carry out.Wall-mounted projection writing plate needs
By projection device, it is easy to cause distortion, the out of focus and distortion of picture；External computer, clipboard, projection device are multiple factories
Family's product, therefore have very big hidden danger in compatibility；It is typically limited to a computer or a clipboard, is exported without video
Interface, and it is irremovable, in a disguised form limit to use occasion.
Main problem existing for existing electronic writing board are as follows: (1), the display of picture still needs to by projector, and need outer
Computer is connect to show；(2), the content that clipboard is write cannot be saved；(3), without gesture identification function；(4), it is unfavorable for larger
The meeting-place screen of area is shown.
Such as: China Patent Publication No. CN107978184A, publication date on May 1st, 2018, entitled the one of innovation and creation
Kind Intelligent mobile electronic whiteboard can carry out what picture store and transmit using infrared induction technology this application discloses a kind of
Intelligent mobile electronic whiteboard.Its shortcoming is the electronic whiteboard without gesture identification function, be can not achieve to image i.e.
When wipe, and without screen extend function, be not suitable for larger area meeting-place screen show.
In consideration of it, it is necessary to provide a kind of electronic writing board and its information processing method based on infrared technique, is able to achieve
Function is extended to the identification of clipboard written contents, transmission, preservation and gesture identification and screen.
Summary of the invention
For the disadvantages mentioned above of the prior art, the present invention provides a kind of electronic writing board and its letter based on infrared technique
Processing method is ceased, which uses off-line identification, by the content recognition of writing at corresponding text information such as Chinese character, word
Female, number.The original copy of writing and the text of identification can be saved in simultaneously and be locally stored, and can also be transferred to by USB3.0 external
Memory.Gesture identification realizes the switching write and wipe book by judgement.Can external HDMI show equipment, realize multi-screen expansion.
The invention is realized by the following technical scheme:
A kind of electronic writing board based on infrared technique, including clipboard ontology, mobile bracket, OPS host, double nip list
Member and pushbutton unit；
Clipboard ontology, the clipboard ontology include infrared touch-control frame, liquid crystal display, OPS host, double nip list
Member and pushbutton unit, the liquid crystal display outer are provided with the infrared touch-control frame, the liquid crystal display and the OPS
Host connects, and an OPS subcard is inserted on the OPS host, and the infrared touch-control frame bottom is respectively set double from left to right
Interface unit, power switch and pushbutton unit；
Mobile bracket, the mobile bracket are two, are separately positioned on the bottom end of the clipboard ontology, and the movement
Frame bottom is provided with the universal wheel of locking locking apparatus；
OPS host, OPS processor is provided in the OPS host, and the OPS processor includes information acquisition unit, control
Computing unit processed, the information acquisition unit is for receiving infrared touch information, the control computing unit and information collection list
Member connection obtains the touch information of the information acquisition unit acquisition and carries out calculation processing generation image information, image is believed
Breath is transmitted to the liquid crystal display and performs image display.
Based on above scheme, the OPS processor further comprises information memory cell, the information memory cell and control
Computing unit connection processed receives the image information of control computing unit and carries out image information storage.
Based on above scheme, Video Output Modules are set, the Video Output Modules external connection is aobvious in the OPS host
Show equipment, the image information of simultaneous display liquid crystal display.
Based on above scheme, the double nip unit is made of HDMI interface and USB interface, the HDMI interface and described
USB interface is connect with the OPS processor.
Based on above scheme, the HDMI interface is HDMI1.4 version, and the HDMI interface external connection display equipment, together
The image information of step display liquid crystal display, the USB interface is 3.0 agreements, and the external removable USB of the USB interface is set
It is standby, save the text and video file of the clipboard of electronic writing board.
Based on above scheme, the pushbutton unit is by video store button, text store button and page new buttons group
At.
Based on above scheme, the clipboard ontology is configured with an electronic pen, and the electronic pen penholder is triangle body, described
A pressure sensor built in electronic pen, the pressure sensor are wirelessly connected transmission pressure by bluetooth and the OPS processor
Sensing data, the electronic pen use lithium battery power supply, and the electronic pen is equipped with a TYPE-C charging interface.
Based on above scheme, OPS host rear portion embeds one group of microphone array.
It is another object of the present invention to provide a kind of electronic information processing method based on infrared technique, this method packet
Include following steps:
S1: touch action is generated using lettering pen；
S2: infrared touch frame senses touch action；
S3: judge touch point area whether be more than setting threshold value；
S4: forming touch information and be identified as writing less than threshold value, is erasing greater than threshold value.
Based on above scheme, the touch track of the liquid crystal display includes text written track and touching object size letter
Breath, the step S4 are specifically included: judging whether touching object dimension information is more than preset threshold value, if so, liquid crystal display
Touch information be identified as erasing move information；If it is not, then the touch information of liquid crystal display is identified as action of writing information.
The beneficial effects of the present invention are:
1. display medium uses liquid crystal display, liquid crystal display display brightness is high, and color is full, and picture is undistorted, no
It is out of focus.Therefore, it is suitable for a variety of use environments.
Automatically switched with erasing move by detection object size 2. writing, be convenient to use, allow meeting or
The efficiency of teaching improves.Without the frequent manual switching tool button of user.
The transmission speed of 3.USB3.0 interface is up to 5.0Gbps, so that the storage speed of file is ensured.Common class
Part can copy completion in ten seconds or so less than 500m.
4.HDMI1.4 interface output resolution ratio meets the use of any situation up to 3840 × 2160.It can show finer
Image, make courseware details richer.
5. the locking locking apparatus of universal wheel, stability while being moved easily, when ensuring that fixed.
6. two kinds of writing, erasing movements can be completed in suitable electronic pen itself.Moreover, in the case of built-in lithium battery electrification,
Firmly different when being write according to user, pressure sensor can get different pressure sensing data, and then can realize three kinds of pens
The effects of mark depth identifies to realize, draws emphasis.
Detailed description of the invention
Fig. 1 is product exploded view of the invention；
Fig. 2 is flow chart of the method for the present invention；
Fig. 3 is the main view of electronic writing board of the invention；
Fig. 4 is the rearview of electronic writing board of the invention；
Fig. 5 is the partial enlarged view of double nip unit of the invention；
Fig. 6 is the partial enlarged view of power switch of the invention；
Fig. 7 is the partial enlarged view of pushbutton unit of the invention；
Fig. 8 is electronic pen schematic diagram of the invention；
Fig. 9 is the correspondence figure of electronic pen and OPS processor of the invention；
Figure 10 is OPS subcard of the invention and OPS host decomposition diagram；
Figure label explanation: 1, infrared touch-control frame；21, HDMI interface；22, USB interface；3, power switch；4, key
Unit；5, mobile bracket；6, universal wheel；7, liquid crystal display；8, OPS host.
Specific embodiment
Product of the present invention is further described below in conjunction with structure of the invention drawings and examples, the description of embodiment is only
For ease of understanding and with the application of the invention, rather than to the limitation of the invention protected.
With reference to shown in Fig. 1, Fig. 3 and Fig. 4, a kind of electronic writing board based on infrared technique, including clipboard ontology, movement
Bracket 5, OPS host 8, double nip unit and push-button unit 4；
Clipboard ontology, the clipboard ontology include infrared touch-control frame 1, liquid crystal display 7, OPS host 8, double connect
Mouth unit and push-button unit 4,7 outer of liquid crystal display are provided with the infrared touch-control frame 1, the liquid crystal display 7
It is connect with the OPS host 8, OPS subcard is inserted on OPS host 8, the expansible various common interfaces of OPS subcard.
Double nip unit, power switch 3 and push-button unit 4 is respectively set in infrared 1 bottom of touch-control frame from left to right；
Mobile bracket 5, the mobile bracket 5 are two, are separately positioned on the bottom end of the clipboard ontology, and the shifting
Dynamic 5 bottom of bracket is provided with the universal wheel 6 of locking locking apparatus；
OPS host 8, is provided with OPS processor in the OPS host 8, the OPS processor include information acquisition unit,
Computing unit is controlled, the information acquisition unit is for receiving infrared touch information, the control computing unit and information collection
Unit connection obtains the touch information of the information acquisition unit acquisition and carries out calculation processing generation image information, by image
Information is transmitted to the liquid crystal display 7 and performs image display；
Further, the OPS processor further comprises information memory cell, and the information memory cell and control are counted
Unit connection is calculated, the image information of control computing unit is received and carries out image information storage.
Further, Video Output Modules are set in the OPS host 8, the Video Output Modules external connection is shown
Equipment, the image information of simultaneous display liquid crystal display 7.
Further, the double nip unit is made of HDMI interface 21 and USB interface 22, the HDMI interface 21 and institute
USB interface 22 is stated to connect with the OPS processor.
Further, the HDMI interface 21 is HDMI1.4 version, and 21 external connection display equipment of the HDMI interface, together
The image information of step display liquid crystal display 7, the USB interface 22 is 3.0 agreements, and the USB interface 22 is external removable
USB device saves the text and video file of the clipboard of electronic writing board.
Further, the push-button unit 4 is made of video store button, text store button and page new buttons.
Further, the clipboard ontology is configured with an electronic pen, and the electronic pen penholder is triangle body, the electronics
A pressure sensor built in pen, the pressure sensor are wirelessly connected transmission pressure sensing by bluetooth and the OPS processor
Data, the electronic pen use lithium battery power supply, and the electronic pen is equipped with a TYPE-C charging interface.
Further, the switch button rear portion embeds one group of microphone array, and there is OPS subcard in 7 behind of liquid crystal display,
OPS subcard is inserted on OPS host 8, and OPS subcard is connected to microphone array by usb bus, and the audio that microphone is transmitted is believed
Number record save OPS processor memory storage.
Refering to what is shown in Fig. 2, when there is object to contact display screen, infrared 1 sense object size of touch-control frame, by touch signal
It is sent to OPS processor to convert, if the dimension of object of monitoring is greater than preset threshold value, is identified as erasing move, if monitoring
Dimension of object be less than preset threshold value, be identified as write or click action, then by video signal transmission to liquid crystal display
7；
Refering to what is shown in Fig. 5, being provided with HDMI interface and USB interface 22 in the clipboard ontology lower left corner, two interfaces are equal
It is connect with OPS processor, USB interface 22 is 3.0 agreements, and transmission speed can access external removable USB and set up to 5.0Gbps
It is standby, save the text and video file of clipboard；HDMI is HDMI1.4 version, and interface can external projector, LED display etc.
Show that equipment shows that writing process, this interface output resolution ratio meet the use of any situation up to 3840 × 2160.
Refering to what is shown in Fig. 6, Fig. 6 is 3 schematic diagram of power switch；Clipboard ontology middle-lower part is provided with a power supply to open
3 are closed, external power supply passes through inside socket access device, wherein first passing through power switch 3, institute before intervening various boards, component
With, power switch 3 controls the power supply of whole equipment, can a key control all devices switching on and shutting down.
Refering to what is shown in Fig. 7, being provided with video store button, text store button and page in the lower right corner of clipboard ontology
Face new buttons click video storage, can store the video in use process after being inserted into USB device at USB interface 22
To USB device, text storage is then to save the text data identified in writing process, two kinds of files of mainly TXT and WORD,
A pure white figure layer can be created after the newly-built click of the page, if clipboard ontological existence writing on the blackboard, can prompt whether to save text and view
Frequency file.
Refering to what is shown in Fig. 8, the mating electronic pen of clipboard ontology, the glad Penixel-N1 of electronic pen model Guangzhou China
Type, electronic pen penholder are triangle body, can be to write action recognition or click, penholder is bonded liquid crystal with pen tip close to liquid crystal display
Action recognition can be erasing by screen, meanwhile, electronic pen built in pressure sensor, pressure sensor is 512 stage pressure sensors, sense
Pressure value should be arrived, OPS processor is real-time transmitted to by bluetooth.
As shown in figure 9, electronic pen arrives OPS processor, transmission pressure sensing data, according to using by bluetooth wireless connection
The weight of the dynamics of person, font color share three layers of variation from shallow to deep, meanwhile, electronic pen uses lithium battery power supply, electronic pen
It is equipped with a TYPE-C charging interface, for charging to electronic pen.
Switch button rear portion embeds one group of microphone array, and there is OPS subcard in 7 behind of liquid crystal display, and OPS is inserted in subcard
On, subcard connection is connected to microphone array by usb bus, and the audio signal recording that microphone transmits is remained to OPS and is deposited
Storage.
Mobile bracket 5 is set to the lower end of blank ontology, and mobile bracket 5 is set to Universal wheel at bottom 6, clipboard ontology
Support is by the bracket with universal wheel 6, and universal wheel 6 is 5 cun of nylon tape brake wheels, is brake shape when brake block is bonded with nylon wheel
State is firmly lifted, and is removable state when brake block is separated with nylon wheel.
It is another object of the present invention to provide a kind of electronic information processing method based on infrared technique, this method packet
Include following steps:
S1: touch action is generated using lettering pen；
S2: infrared touch frame senses touch action；
S3: judge touch point area whether be more than setting threshold value；
S4: forming touch information and be identified as writing less than threshold value, is erasing greater than threshold value.
Based on above scheme, the touch track of liquid crystal display 7 includes text written track and touching object dimension information.
Based on above scheme, step S4 is specifically included: judging whether touching object dimension information is more than preset threshold value, threshold
Value is set as the area of 2 centimetres of 2 cm x, if so, the touch information of liquid crystal display 7 is identified as erasing move information；If it is not,
Then the touch information of liquid crystal display 7 is identified as action of writing information.
Experimental method of the present invention has the following beneficial effects:
Display medium uses liquid crystal display 7, and 7 display brightness of liquid crystal display is high, and color is full, and picture is undistorted, no
It is out of focus, it is suitable for a variety of use environments.Writing is automatically switched with erasing move by detection object size, is facilitated
It uses, the efficiency of meeting or teaching is allowed to improve, be not necessarily to the frequent manual switching tool button of user.The transmission speed of USB3.0 interface
It spends up to 5.0Gbps, so that the storage speed of file is ensured, common courseware is less than 500m, ten seconds or so
Copy is completed.HDMI1.4 interface output resolution ratio meets the use of any situation up to 3840 × 2160, can show finer
Image, make courseware details richer.The locking locking apparatus of universal wheel 6, stabilization while being moved easily, when ensuring that fixed
Property.Two kinds of writing, erasing movements can be completed in suitable electronic pen itself.Moreover, in the case of built-in lithium battery electrification, according to using
It exerts oneself when person writes different, pressure sensor can get different pressure sensing data, and then can realize three kinds of person's handwriting depth, come
The effects of realizing mark, drawing emphasis.
It should be understood that universal wheel 6, TYPE-C charging interface, power switch 3, HDMI interface 21, USB interface 22 with
And mobile bracket 5 is common component in the technical field, structure and connection relationship are all made of the prior art, herein no longer
It is described in detail.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of electronic writing board based on infrared technique, including clipboard ontology, mobile bracket, OPS host, double nip unit
And pushbutton unit, it is characterised in that:
Clipboard ontology, the clipboard ontology include infrared touch-control frame, liquid crystal display, OPS host, double nip unit and
Pushbutton unit, the liquid crystal display outer are provided with the infrared touch-control frame, the liquid crystal display and the OPS host
It connects, is inserted with an OPS subcard on the OPS host, double nip is respectively set in the infrared touch-control frame bottom from left to right
Unit, power switch and pushbutton unit；
Mobile bracket, the mobile bracket are two, are separately positioned on the bottom end of the clipboard ontology, and the mobile bracket
Bottom is provided with the universal wheel of locking locking apparatus；
OPS host, OPS processor is provided in the OPS host, and the OPS processor includes information acquisition unit, control meter
Unit is calculated, the information acquisition unit connects for receiving infrared touch information, the control computing unit and information acquisition unit
It connects, obtain the touch information of the information acquisition unit acquisition and carries out calculation processing generation image information, image information is passed
The liquid crystal display is transported to perform image display.
2. the electronic writing board according to claim 1 based on infrared technique, it is characterised in that: the OPS processor into
One step includes information memory cell, and the information memory cell is connect with control computing unit, receives the figure of control computing unit
As information and carry out image information storage.
3. the electronic writing board according to claim 1 based on infrared technique, it is characterised in that: set in the OPS host
Video Output Modules are set, the Video Output Modules external connection shows equipment, the image information of simultaneous display liquid crystal display.
4. the electronic writing board according to claim 1 based on infrared technique, it is characterised in that: the double nip unit by
HDMI interface and USB interface composition, the HDMI interface and the USB interface are connect with the OPS processor.
5. the electronic writing board according to claim 4 based on infrared technique, it is characterised in that: the HDMI interface is
HDMI1.4 version, and the HDMI interface external connection display equipment, the image information of simultaneous display liquid crystal display, the USB connect
It mouthful is 3.0 agreements, and the external removable USB device of the USB interface saves the text and video of the clipboard of electronic writing board
File.
6. the electronic writing board according to claim 1 based on infrared technique, it is characterised in that: the pushbutton unit is by regarding
Frequency store button, text store button and page new buttons composition.
7. the electronic writing board according to claim 1 based on infrared technique, it is characterised in that: the clipboard ontology is matched
It is cased with an electronic pen, the electronic pen penholder is triangle body, a pressure sensor built in the electronic pen, the pressure sensor
Transmission pressure sensing data are wirelessly connected by bluetooth and the OPS processor, the electronic pen uses lithium battery power supply, described
Electronic pen is equipped with a TYPE-C charging interface.
8. the electronic writing board according to claim 1 based on infrared technique, it is characterised in that: OPS host rear portion
Embed one group of microphone array.
9. a kind of described in any item electronic information processing methods based on infrared technique of claim 1-8, which is characterized in that packet
Include following steps:
S1: touch action is generated using lettering pen；
S2: infrared touch frame senses touch action；
S3: judge touch point area whether be more than setting threshold value；
S4: forming touch information and be identified as writing less than threshold value, is erasing greater than threshold value.
10. the electronic information processing method according to claim 9 based on infrared technique, it is characterised in that: the liquid crystal
The touch track of display screen includes text written track and touching object dimension information, and the step S4 is specifically included: judgement touching
Touch whether dimension of object information is more than preset threshold value, if so, the touch information of liquid crystal display is identified as erasing move information；
If it is not, then the touch information of liquid crystal display is identified as action of writing information.
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| CN201811546219.6A CN109407903A (en) | 2018-12-18 | 2018-12-18 | A kind of electronic writing board and its information processing method based on infrared technique |
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| CN201811546219.6A CN109407903A (en) | 2018-12-18 | 2018-12-18 | A kind of electronic writing board and its information processing method based on infrared technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596776A (en) * | 2020-05-22 | 2020-08-28 | 重庆长教科技有限公司 | Electronic whiteboard writing pen and teaching system thereof |
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| CN208126675U (en) * | 2018-01-26 | 2018-11-20 | 深圳市中视同创科技有限公司 | A kind of memory wisdom interactive teaching and learning blackboard |
| CN209231906U (en) * | 2018-12-18 | 2019-08-09 | 青岛科锐斯光电科技有限公司 | A kind of electronic writing board based on infrared technique |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596776A (en) * | 2020-05-22 | 2020-08-28 | 重庆长教科技有限公司 | Electronic whiteboard writing pen and teaching system thereof |
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