CN102999180A - Scanning pen and scanning method thereof - Google Patents
Scanning pen and scanning method thereof Download PDFInfo
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- CN102999180A CN102999180A CN2011102726546A CN201110272654A CN102999180A CN 102999180 A CN102999180 A CN 102999180A CN 2011102726546 A CN2011102726546 A CN 2011102726546A CN 201110272654 A CN201110272654 A CN 201110272654A CN 102999180 A CN102999180 A CN 102999180A
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Abstract
The invention discloses a scanning pen and a scanning method of the scanning pen. The scanning pen comprises a shell provided with a collecting window; an infrared transmitting device for generating an excitation signal when the collecting window is close to a medium to be scanned; an infrared receiving device for receiving the excitation signal and converting the signal into a digital signal after circuit process; a main circuit module arranged inside the shell for receiving and processing the digital signal to control a light path lighting device to emit light so as to form a light path; and an image collecting and processing device for collecting images when the light path is opened. According to the scanning pen provided by the invention, the loss of the tip of the pen can be effectively reduced, and the service life of the scanning pen is prolonged.
Description
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Technical field
The present invention relates to the computer external input equipment field, especially relate to a kind of wand that is applied to words input, and the scan method that is applied to described wand.
Background technology
In daily life, when reading one piece of article, the reader wishes to take passages the most important paragraph of article usually, maybe needs scattered literal is carried out typing.At present, wand is the effective tool of realizing article extracts and words input, and existing wand technology adopts reflected light path to realize.
Chinese patent CN 201130356 " wand " discloses a kind of wand, comprising: housing, and be positioned at the main circuit board of housing upper end and be positioned at the image sensor board of housing lower end, be equipped with imageing sensor and camera lens on the described image sensor board; This wand also comprises be used to connection seat between the plate that connects described main circuit board and described image sensor board, so that when wand scanned, imageing sensor was parallel or approximately parallel with the medium that is scanned.
Chinese patent CN 1375782A " hand held office assistant " discloses a kind of device that can scanning input document, and rectilinear scanner and portable computing device are integrated and scanned document is exposed.Synthetic image when between this rectilinear scanner and the scanned document relative motion being arranged.Literal in this image reproduces by a kind of OCR engine in the described device, and can be shown on the display screen of described portable computing device.The literal that reproduces can be inserted on the relevant section of the record that remains in the described equipment subsequently, perhaps be sent to another equipment.
Above patent is the solution of wand, but the above wand, its tip of the brushstyle of a writing or painting front end is the mechanical type flip flop equipment.As shown in Figure 1, have the wand A of mechanical type flip flop equipment, mainly comprise the triggering pin one, spring 3 and trigger switch 2 are connected with digital signal processor; When wand contact paper, trigger stressed spring 3 and the trigger switch 2 generation digital signals of pushing of pin one, be transferred to digital signal processor and form light path in order to process the follow-up equipment lamp.
Because wand was mechanical flip flop equipment in the past, when wand carries out work, pen tip need to have certain pressure just can carry out work with institute's scan text, thereby the loss that pen tip is subject to is larger, thereby affected the serviceable life of wand, and be not easy after mechanical switch damages to change, affected the convenience that wand uses.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of wand, and it can reduce the loss of pen tip, effectively prolongs its serviceable life.
For achieving the above object, the invention provides a kind of wand, include: housing offers acquisition window on it; Infrared launcher is used for producing excitation signal behind the close medium to be scanned of described acquisition window; Infrared receiving device is used for receiving described excitation signal, and by being converted into digital signal after the processing of circuit; The main circuit board module is arranged on the inside of described housing, is used for receiving and processing described digital signal, with the luminous formation light path of control light path light fixture; And the image acquisition and processing device, be used for when light path is opened, carrying out image acquisition.
Further, described infrared launcher includes: infrarede emitting diode, for generation of infrared signal; Described infrared receiving device includes: infrared photodiode is used for receiving described infrared signal, and produces digital signal after processing of circuit.
Further, described image acquisition and processing device comprises: image sensor board; Imageing sensor is arranged on the described image sensor board, is used for gathering image; And camera lens, be arranged on the described image sensor board, be used for light path is projected described imageing sensor.
Further, described main circuit board module includes: main circuit board; Digital signal processor is arranged on the described main circuit board; And for generation of the function button of operational order, be arranged on the described housing, and link to each other with described digital signal processor electricity; Wherein, link to each other with described digital signal processor electricity for generation of the light path light fixture that shines to be scanned light path.
Further, described infrared photodiode is integrated in the inside of described imageing sensor.
Further, also include connection seat between plate, be connected between described image sensor board and the described main circuit board.
Further, described wand is inline process type, also includes data-interface, is arranged on the described main circuit board, is used for image transmitting to outer computer or other storage facilitiess.
Further, described data-interface is USB interface.
Further, described wand is the off line formula, and its inside is provided with image processor.
Further, the distance of described acquisition window and medium to be scanned is less than 5mm.
Meanwhile, the present invention also provides a kind of scan method, described scan method comprises: (a) behind the close medium to be scanned of described acquisition window, described infrared launcher produces excitation signal, described infrared receiving device receives described excitation signal, and by being converted into digital signal after the processing of circuit; (b) described main circuit board module receives and processes described digital signal, with the luminous formation light path of control light path light fixture; (c) described image acquisition and processing device carries out image acquisition when light path is opened.
Further, described step (a) comprising: described infrared launcher comprises infrarede emitting diode, described infrarede emitting diode emission infrared signal; Described infrared receiving device comprises infrared photodiode, and described infrared photodiode receives described infrared signal, and produces digital signal after processing of circuit.
According to wand of the present invention, by being provided with infrared launcher and infrared receiving device, thereby substitute mechanical flip flop equipment of the prior art, effectively reduced the loss of pen tip, prolonged the serviceable life of wand.
On the other hand, the present invention has also realized the simplification of wand structure, thereby has reduced production cost and assembly difficulty.Because the infrarede emitting diode power consumption is very low, very little to kwh loss, so wand of the present invention can be in running order for a long time, lasting usability is stronger.
Description of drawings
The present invention is described in detail below in conjunction with the drawings and specific embodiments.Wherein:
Fig. 1 is the structural representation that has the wand of mechanical type flip flop equipment in the prior art;
Fig. 2 is the example structure synoptic diagram of the wand with infrared launcher and infrared receiving device provided by the invention;
Fig. 3 is the workflow diagram with wand of infrared launcher and infrared receiving device of the present invention.
Embodiment
Below, by exemplary embodiment the present invention is specifically described.Yet should be appreciated that in the situation that is not having further narration element, structure and feature in embodiment also can be attached in other embodiment valuably.
Consult shown in Figure 2ly, according to a kind of wand B of the present invention, include housing 10, offer acquisition window 11 on it, described acquisition window 11 is arranged on the lower end of housing 10, is used for frame and lives literal on the medium to be scanned; Infrared launcher 20 is arranged on the inside of described housing 10, is used for producing excitation signal when described acquisition window reaches certain distance near medium to be scanned, and this excitation signal exposes to medium to be scanned; Infrared receiving device 21 is arranged on the inside of described housing 10, is used for receiving the excitation signal that described infrared launcher 20 exposes to medium back reflection to be scanned, and by being converted into digital signal after the processing of circuit; The main circuit board module is arranged on the inside of described housing 10, is used for receiving and processing described digital signal, with control light path light fixture 41 luminous formation light paths; And the image acquisition and processing device, when opening for light path, carry out image acquisition.
Specifically, described infrared launcher 20 includes infrarede emitting diode, exposes to medium to be scanned for generation of infrared signal; Described infrared receiving device 21 includes: infrared photodiode, be used for receiving the infrared signal that exposes to dieletric reflection to be scanned of described infrarede emitting diode emission, when reach between acquisition window 11 and the medium to be scanned a certain apart from the time, the infrared signal that affiliated infrared photodiode is received produces digital signal after processing of circuit.Distance between acquisition window 11 and the medium to be scanned can arrange according to actual needs, and preferably, described distance is less than 5mm.Yet those skilled in the art are that described collection distance is not limited to this with being to be understood that.
Further, described main circuit board module includes main circuit board 40; Digital signal processor 42 is arranged on the described main circuit board 40, can form light path for the treatment of the digital signal that transforms after processing of circuit to control described light path light fixture 41; And for generation of the function button 43 of operational order, it is arranged on the described housing, and links to each other with described main circuit board 40 electricity, and described function button 43 has the functions such as line feed, carriage return, deletion; Wherein for generation of the light path light fixture 41 of light path, link to each other with described digital signal processor 42, described function button is arranged on the outside of described housing, so that the user operates use, described function button 43 links to each other with described digital signal processor.
Further, described image acquisition and processing device comprises: image sensor board; Imageing sensor 30 is arranged on the described image sensor board, and described imageing sensor 30 is used for gathering image; And camera lens 31, being arranged on the described image sensor board, described camera lens is used for light path is projected described imageing sensor.
Specifically, when reach between acquisition window 11 and the medium to be scanned a certain apart from the time, the infrared signal that described infrared photodiode receives produces digital signal after processing of circuit, with digital data transmission to the digital signal processor 42 that is arranged on the main circuit board 40,42 pairs of these digital signals of this digital signal processor are processed rear with control light path light fixture 41 luminous formation light paths, light path shines medium back reflection to be scanned from top to bottom, light path enters camera lens 31 after reflection, and camera lens directly converges in the light path that enters in the imageing sensor 30.
Preferably, consider the structural simplification of wand, described infrared photodiode 22 can also be integrated in the inside of described imageing sensor 30, less characteristics on the structure in conjunction with infrarede emitting diode and infrared photodiode, it is larger and complicated that the present invention has overcome in the prior art structure of mechanical type flip flop equipment, the defective that assembly difficulty is high.
Be worth being with pointing out, because wand of the present invention uses infrarede emitting diode and infrared photodiode, namely utilize infrared launcher and infrared receiving device to replace original mechanical type flip flop equipment, effectively avoided the loss of the pen tip of wand of the present invention, prolonged serviceable life, and power consumption is lower, electric quantity loss is less, can guarantee the duty of long period, practicality is better.In addition, when breaking down and damage, infrarede emitting diode of the present invention and infrared photodiode are changed more convenient, and it is convenient to safeguard, so its lasting usability is stronger.
Described wand also includes connection seat 50 between plate, is connected between described image sensor board and the described main circuit board.
Described wand also includes data-interface 44, and described data-interface 44 can be arranged on the main circuit board 40, is used for image further is transferred to outer computer or other storage facilitiess.That described data-interface is USB interface alternatively.
With mechanical type flip flop equipment in the prior art differently be, wand of the present invention need not nib is exerted pressure to produce digital signal, but control the light path light fixture by the infrared signal that infrared launcher and infrared receiving device produce, thereby carry out subsequent treatment.
Be worth being with pointing out, wand of the present invention can be inline process type wand or off line formula wand, when the present invention is the inline process type wand, be connected with computing machine by described data-interface 44, be used for image further is transferred to the local processing of outer computer and storage or is stored to other storage facilitiess.That described data-interface is USB interface alternatively.When the present invention was off line formula wand, its inside also was provided with the image processor (not shown), was used for image recognition, pronunciation and demonstration etc.
Meanwhile, the present invention also provides a kind of scan method that is applied to described wand, described scan method comprises: (a) when described acquisition window near the surface of medium to be scanned reach a certain apart from the time, described infrared launcher produces excitation signal, described infrared receiving device receives described excitation signal, and by being converted into digital signal after the processing of circuit; Preferably, described distance is less than 5mm; (b) described main circuit board module receives and processes described digital signal, with the luminous formation light path of control light path light fixture; (c) described image acquisition and processing device carries out image acquisition when light path is opened.Be worth being, described step (a) comprising with pointing out: described infrared launcher 21 comprises infrarede emitting diode, described infrarede emitting diode emission infrared signal; Described infrared receiving device 20 comprises infrared photodiode, and described infrared photodiode receives described infrared signal, and produces digital signal after processing of circuit.
Specifically, when the acquisition window of wand near the surface of medium to be scanned reach a certain apart from the time, infrarede emitting diode sends infrared signal, infrared photodiode receives infrarede emitting diode and sends infrared signal, produce digital signal through processing of circuit, import the signal after processing into digital signal processor, with the luminous formation light path of control light path light fixture, and then so that imageing sensor is started working, and carry out collection and the transmission course of successive image; After the acquisition window of wand broke away from the surface of medium to be scanned, infrared photodiode did not receive the infrared signal of infrarede emitting diode, and can close light path this moment by DSP CONTROL light path light fixture, stopped scanning.
For the ease of understanding this case, the situation of the below during take wand of the present invention as the inline process type wand further describes the workflow of wand of the present invention as example.Consult shown in Figure 3ly, the USB interface of wand with after USB interface on the computing machine is connected, is moved corresponding scanning software, enter and wait for scanning mode 201; During the close dielectric surface to be scanned of wand, acquisition window 11 frames are lived the corresponding literal that will gather; When wand near dielectric surface to be scanned reach setting apart from the time, enter sweep start state 202, the digital signal processor of main circuit board detects this state, open light path light fixture 41, light path light fixture 41 luminous formation light paths, light path enters camera lens after exposing to dieletric reflection to be scanned, directly converges in imageing sensor, imageing sensor starts, and begins to gather image; Whether the acquisition window of judging wand surpasses the distance 203 of setting away from medium to be scanned, and namely whether the infrared photodiode of digital signal processor is converted into digital signal with the signal that receives; If the acquisition window of wand does not surpass setpoint distance away from medium to be scanned, proceed image acquisition 204, imageing sensor carries out image transmitting 205 with the image that collects, the image transmitting that namely scanning is obtained by the USB line that is connected with computing machine is to computing machine, after computing machine receives image, the image that receives is carried out image binaryzation 206, carry out Image Mosaics 207 with the previous frame image.In actual treatment, the order of image binaryzation 206 and Image Mosaics 207 can be replaced as required, finish processing after, judge that again whether the acquisition window of wand surpasses setpoint distance 203 away from medium to be scanned; If in setpoint distance, then aforementioned process is in circulation for the acquisition window of wand and medium to be scanned always always; Exceed setpoint distance if detect the acquisition window of wand away from medium to be scanned, then enter the process of wand scanning completion status 208, the view data that collects is carried out literal identification 209, the data after literal identification 209 is finished after the transmission identification, Output rusults 210; The result is defeated after rolling, detect the state 211 of merit button, enter accordingly corresponding function key and process 212, such as operations such as the change of nonfunctional key, carriage return, line feed; After handling, get back to waiting status 201, wait for user's again textual scan.
In sum, according to wand of the present invention, it can substitute mechanical flip flop equipment of the prior art, thereby has effectively reduced the loss of pen tip, has prolonged the serviceable life of wand.On the other hand, the present invention has also realized the simplification of wand structure, thereby has reduced production cost and assembly difficulty.In addition, because the infrarede emitting diode power consumption is very low, very little to kwh loss, so wand of the present invention can be in running order for a long time, operability is stronger, is beneficial to extensive popularization.
Be appreciated that the present invention is described by some embodiment, those skilled in the art know, in the situation that does not break away from the spirit and scope of the present invention, can carry out various changes or equivalence replacement to these features and embodiment.In addition, under instruction of the present invention, can make amendment to adapt to concrete situation and material to these features and embodiment and can not break away from the spirit and scope of the present invention.Therefore, the present invention is not subjected to the restriction of specific embodiment disclosed herein, and all interior embodiment of claim scope that fall into the application belong to protection scope of the present invention.
Claims (12)
1. a wand (B) is characterized in that, includes:
Housing (10) offers acquisition window (11) on it;
Infrared launcher (20) is used for producing excitation signal behind the close medium to be scanned of described acquisition window;
Infrared receiving device (21) is used for receiving described excitation signal, and by being converted into digital signal after the processing of circuit;
The main circuit board module is arranged on the inside of described housing, is used for receiving and processing described digital signal, with the luminous formation light path of control light path light fixture (41); And the image acquisition and processing device, be used for when light path is opened, carrying out image acquisition.
2. wand as claimed in claim 1 is characterized in that, described infrared launcher (20) includes: infrarede emitting diode, for generation of infrared signal; Described infrared receiving device (21) includes: infrared photodiode is used for receiving described infrared signal, and produces digital signal after processing of circuit.
3. wand as claimed in claim 2 is characterized in that, described image acquisition and processing device comprises:
Image sensor board;
Imageing sensor (30) is arranged on the described image sensor board, is used for gathering image; And camera lens, be arranged on the described image sensor board, be used for light path is projected described imageing sensor.
4. wand as claimed in claim 3 is characterized in that, described main circuit board module includes
Main circuit board (40);
Digital signal processor is arranged on the described main circuit board, for the treatment of the digital signal after receiving and pass through processing of circuit through infrared receiving device 21; And for generation of the function button of operational order, be arranged on the described housing, and link to each other with described digital signal processor electricity;
Wherein, link to each other with described digital signal processor electricity for generation of the light path light fixture (41) that shines medium optical path to be scanned.
5. wand as claimed in claim 3 is characterized in that, described infrared photodiode is integrated in the inside of described imageing sensor.
6. wand as claimed in claim 4 is characterized in that, also includes connection seat between plate, is connected between described image sensor board and the described main circuit board.
7. wand as claimed in claim 4 is characterized in that, described wand also includes data-interface, is arranged on the described main circuit board, is used for image transmitting to outer computer or other storage facilitiess.
8. wand as claimed in claim 7 is characterized in that, described data-interface is USB interface.
9. wand as claimed in claim 4 is characterized in that, described wand inside is provided with image processor.
10. wand as claimed in claim 1 is characterized in that, the distance of described acquisition window and medium to be scanned is less than 5mm.
11. a scan method that is applied to each described wand in the claim 1 ~ 10 is characterized in that, described scan method comprises:
(a) behind the close medium to be scanned of described acquisition window, described infrared launcher produces excitation signal, and described infrared receiving device receives described excitation signal, and by being converted into digital signal after the processing of circuit;
(b) described main circuit board module receives and processes described digital signal, with the luminous formation light path of control light path light fixture;
(c) described image acquisition and processing device carries out image acquisition when light path is opened.
12. scan method as claimed in claim 11 is characterized in that, described step (a) comprising:
Described infrared launcher (21) comprises infrarede emitting diode, described infrarede emitting diode emission infrared signal;
Described infrared receiving device (20) comprises infrared photodiode, and described infrared photodiode receives described infrared signal, and produces digital signal after processing of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110272654.6A CN102999180B (en) | 2011-09-15 | 2011-09-15 | A kind of wand and scan method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110272654.6A CN102999180B (en) | 2011-09-15 | 2011-09-15 | A kind of wand and scan method thereof |
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| CN102999180A true CN102999180A (en) | 2013-03-27 |
| CN102999180B CN102999180B (en) | 2016-04-20 |
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| CN201110272654.6A Active CN102999180B (en) | 2011-09-15 | 2011-09-15 | A kind of wand and scan method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106791260A (en) * | 2016-12-29 | 2017-05-31 | 天津天地众恒仪表技术有限公司 | It is a kind of can shatter-resistant and can wirelessly transmitting data hand held spatial digitizer |
| CN110751862A (en) * | 2019-10-25 | 2020-02-04 | 汉王科技股份有限公司 | Handheld reader and data processing method thereof |
| CN112836703A (en) * | 2021-01-25 | 2021-05-25 | 网易有道信息技术（北京）有限公司 | Method for portable electronic device and portable electronic device |
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| CN110751862B (en) * | 2019-10-25 | 2020-11-20 | 汉王科技股份有限公司 | Handheld reader and data processing method thereof |
| CN112836703A (en) * | 2021-01-25 | 2021-05-25 | 网易有道信息技术（北京）有限公司 | Method for portable electronic device and portable electronic device |
| CN112836703B (en) * | 2021-01-25 | 2022-04-26 | 网易有道信息技术（北京）有限公司 | Method for portable electronic device and portable electronic device |
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|---|---|
| CN102999180B (en) | 2016-04-20 |
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