CN102999180B - A kind of wand and scan method thereof - Google Patents
A kind of wand and scan method thereof Download PDFInfo
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- CN102999180B CN102999180B CN201110272654.6A CN201110272654A CN102999180B CN 102999180 B CN102999180 B CN 102999180B CN 201110272654 A CN201110272654 A CN 201110272654A CN 102999180 B CN102999180 B CN 102999180B
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Abstract
The invention discloses a kind of wand and scan method thereof, wherein said wand comprises: housing, and it offers acquisition window; Infrared launcher, at described acquisition window after medium to be scanned, produce excitation signal; Infrared receiving device, for receiving described excitation signal, and by being converted into digital signal after processing of circuit; Main circuit board module, is arranged on the inside of described housing, for receiving and processing described digital signal, forms light path to control the luminescence of light path light fixture; And image acquisition and processing device, for carrying out image acquisition when light path is opened.According to wand of the present invention, effectively can reduce the loss of pen tip, extend the serviceable life of wand.
Description
Technical field
The present invention relates to computer external input equipment field, especially relate to a kind of wand being applied to words input, and be applied to the scan method of described wand.
Background technology
In daily life, when reading one section of article, reader wishes the most important paragraph taking passages article usually, or needs scattered word to carry out typing.At present, wand is the effective tool realizing article extracts and words input, and existing wand technology adopts reflected light path to realize.
Chinese patent CN201130356 " wand " discloses a kind of wand, comprising: housing, is positioned at the main circuit board of housing upper end and is positioned at the image sensor board of housing lower end, described image sensor board being equipped with imageing sensor and camera lens; This wand also comprises connection seat between the plate for connecting described main circuit board and described image sensor board, makes when wand scans, imageing sensor be parallel or approximately parallel by the medium scanned.
Chinese patent CN1375782A " hand held office assistant " discloses a kind of device of energy scanning t test document, and a rectilinear scanner and a portable computing device are integrated and expose scanned document.Synthetic image when having a relative motion between this rectilinear scanner and scanned document.Word in this image is reproduced by a kind of OCR engine in described device, and can be shown on the display screen of described portable computing device.The word of reproduction can be inserted on the relevant portions of maintenance record in the apparatus subsequently, or send 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 mechanical type flip flop equipment.As shown in Figure 1, have the wand A of mechanical type flip flop equipment, mainly comprise triggering pin one, spring 3 and trigger switch 2, be connected with digital signal processor; When wand contact paper, trigger that pin one is stressed pushes spring 3 and trigger switch 2 produces digital signal, be transferred to digital signal processor and form light path in order to process follow-up equipment lamp.
Because wand was mechanical activation device in the past, when wand carries out work, pen tip needs have certain pressure just can carry out work with institute's scan text, thus the loss that is subject to of pen tip is larger, thus have impact on the serviceable life of wand, and mechanical switch is not easy after damaging to change, and have impact on 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 extends its serviceable life.
For achieving the above object, the invention provides a kind of wand, include: housing, it offers acquisition window; Infrared launcher, at described acquisition window after medium to be scanned, produce excitation signal; Infrared receiving device, for receiving described excitation signal, and by being converted into digital signal after processing of circuit; Main circuit board module, is arranged on the inside of described housing, for receiving and processing described digital signal, forms light path to control the luminescence of light path light fixture; And image acquisition and processing device, for carrying out image acquisition when light path is opened.
Further, described infrared launcher includes: infrarede emitting diode, for generation of infrared signal; Described infrared receiving device includes: infrared photodiode, 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 described image sensor board, for gathering image; And camera lens, be arranged on described image sensor board, for light path is projected described imageing sensor.
Further, described main circuit board module includes: main circuit board; Digital signal processor, is arranged on described main circuit board; And for generation of the function button of operational order, arrange on the housing, and be connected with described digital signal processor electricity; Wherein, be connected with described digital signal processor electricity for generation of the light path light fixture being irradiated 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 described main circuit board.
Further, described wand is inline process type, also includes data-interface, is arranged on described main circuit board, for by image transmitting to outer computer or other storage facilitiess.
Further, described data-interface is USB interface.
Further, described wand is 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, present invention also offers a kind of scan method, described scan method comprises: (a) is when described acquisition window is after medium to be scanned, described infrared launcher produces excitation signal, described infrared receiving device receives described excitation signal, and by being converted into digital signal after processing of circuit; B () described main circuit board module receives and processes described digital signal, form light path to control the luminescence of light path light fixture; C () described image acquisition and processing device, when light path is opened, carries out image acquisition.
Further, described step (a) comprising: described infrared launcher comprises infrarede emitting diode, and described infrarede emitting diode launches 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, thus substituting mechanical activation device of the prior art, effectively reducing the loss of pen tip, extending the serviceable life of wand.
On the other hand, The invention also achieves the simplification of wand structure, thus reduce production cost and assembly difficulty.Because infrarede emitting diode power consumption is very low, very little to kwh loss, therefore wand of the present invention can be in running order for a long time, lasting usability is stronger.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Wherein:
Fig. 1 is the structural representation of the wand in prior art with mechanical type flip flop equipment;
Fig. 2 is the example structure schematic diagram with the wand of infrared launcher and infrared receiving device provided by the invention;
Fig. 3 is the workflow diagram with the wand of infrared launcher and infrared receiving device of the present invention.
Embodiment
Below, by exemplary embodiment, the present invention is specifically described.But should be appreciated that element, structure and feature in an embodiment also can be attached in other embodiment valuably when not describing further.
Consult shown in Fig. 2, according to a kind of wand B of the present invention, include housing 10, it offers acquisition window 11, described acquisition window 11 is arranged on the lower end of housing 10, lives the word on medium to be scanned for frame; Infrared launcher 20, is arranged on the inside of described housing 10, and for when described acquisition window reaches certain distance near medium to be scanned, produce excitation signal, this excitation signal exposes to medium to be scanned; Infrared receiving device 21, is arranged on the inside of described housing 10, exposes to the excitation signal of medium back reflection to be scanned for receiving described infrared launcher 20, and by being converted into digital signal after processing of circuit; Main circuit board module, is arranged on the inside of described housing 10, for receiving and processing described digital signal, forms light path to control light path light fixture 41 luminescence; And 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, for receiving the infrared signal exposing to dieletric reflection to be scanned that described infrarede emitting diode is launched, when reaching a certain distance between acquisition window 11 and medium to be scanned, the infrared signal that affiliated infrared photodiode receives is produced digital signal after processing of circuit.Distance between acquisition window 11 and medium to be scanned can be arranged according to actual needs, and preferably, described distance is less than 5mm.But those skilled in the art are with being to be understood that, described collection distance is not limited thereto.
Further, described main circuit board module includes main circuit board 40; Digital signal processor 42, is arranged on described main circuit board 40, can form light path for the treatment of the digital signal transformed 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 housing, and be connected with described main circuit board 40 electricity, 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, be connected with described digital signal processor 42, described function button is arranged on the outside of described housing, so that user operates use, described function button 43 is connected with described digital signal processor.
Further, described image acquisition and processing device comprises: image sensor board; Imageing sensor 30, is arranged on described image sensor board, and described imageing sensor 30 is for gathering image; And camera lens 31, be arranged on described image sensor board, described camera lens is used for light path to project described imageing sensor.
Specifically, when reaching a certain distance between acquisition window 11 and medium to be scanned, the infrared signal that described infrared photodiode receives produces digital signal after processing of circuit, by digital data transmission to the digital signal processor 42 be arranged on main circuit board 40, light path is formed to control light path light fixture 41 luminescence after this digital signal processor 42 processes this digital signal, light path is irradiated to medium back reflection to be scanned from top to bottom, light path enters camera lens 31 after reflection, and the light path entered directly converges in imageing sensor 30 by camera lens.
Preferably, consider the structural simplification of wand, described infrared photodiode 22 can also be integrated in the inside of described imageing sensor 30, in conjunction with feature less in the structure of infrarede emitting diode and infrared photodiode, the structure that instant invention overcomes mechanical type flip flop equipment in prior art is larger and complicated, the defect that assembly difficulty is high.
Be worth be 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 prevent the loss of the pen tip of wand of the present invention, extend serviceable life, and power consumption is lower, electric quantity loss is less, can ensure 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, therefore its lasting usability is stronger.
Described wand also includes connection seat 50 between plate, is connected between described image sensor board and described main circuit board.
Described wand also includes data-interface 44, and described data-interface 44 can be arranged on main circuit board 40, for image being transferred to further outer computer or other storage facilitiess.Alternatively, described data-interface is USB interface.
With mechanical type flip flop equipment in prior art be differently, wand of the present invention produces digital signal without the need to applying pressure to nib, but control light path light fixture by the infrared signal that infrared launcher and infrared receiving device produce, thus carry out subsequent treatment.
Be worth be with pointing out, wand of the present invention can be inline process type wand or off line formula wand, when the present invention is inline process type wand, be connected with computing machine by described data-interface 44, for image being transferred to outer computer processing locality further and storing or be stored to other storage facilitiess.Alternatively, described data-interface is USB interface.When the present invention is off line formula wand, its inside is also provided with image processor (not shown), for image recognition, pronunciation and display etc.
Meanwhile, present invention also offers a kind of scan method being applied to described wand, described scan method comprises: (a) is when described acquisition window reaches a certain distance near the surface of medium to be scanned, described infrared launcher produces excitation signal, described infrared receiving device receives described excitation signal, and by being converted into digital signal after processing of circuit; Preferably, described distance is less than 5mm; B () described main circuit board module receives and processes described digital signal, form light path to control the luminescence of light path light fixture; C () described image acquisition and processing device, when light path is opened, carries out image acquisition.Be worth being that described step (a) comprising with pointing out: described infrared launcher 21 comprises infrarede emitting diode, described infrarede emitting diode launches 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 reaches a certain distance near the surface of medium to be scanned, 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 process into digital signal processor, form light path to control the luminescence of light path light fixture, and then imageing sensor is started working, and carry out collection and the transmitting procedure of successive image; After the acquisition window of wand departs from the surface of medium to be scanned, infrared photodiode does not receive the infrared signal of infrarede emitting diode, now closes light path by DSP CONTROL light path light fixture, stops scanning.
For the ease of understanding this case, below for wand of the present invention for situation during inline process type wand, further describe the workflow of wand of the present invention.Consult shown in Fig. 3, after the USB interface of wand being connected with the USB interface on computing machine, run corresponding scanning software, enter and wait for scanning mode 201; Wand is when dielectric surface to be scanned, and the corresponding word that will gather lived by acquisition window 11 frame; When wand reaches the distance of setting near dielectric surface to be scanned, 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 luminescence forms light path, and light path enters camera lens after exposing to dieletric reflection to be scanned, directly converges in imageing sensor, imageing sensor starts, and starts to gather image; Judge that whether the acquisition window of wand exceedes the distance 203 of setting away from medium to be scanned, namely whether the infrared photodiode of digital signal processor is converted into digital signal by the signal received; If the acquisition window of wand does not exceed setpoint distance away from medium to be scanned, proceed image acquisition 204, the image collected is carried out image transmitting 205 by imageing sensor, namely the image transmitting that obtains will be scanned in computing machine by the USB line that is connected with computing machine, after computing machine receives image, the image received is carried out image binaryzation 206, carries out image mosaic 207 with previous frame image.In actual treatment, the order of image binaryzation 206 and image mosaic 207 can be replaced as required, after completing process, again judges whether the acquisition window of wand does not exceed setpoint distance 203 away from medium to be scanned; If the acquisition window of wand and medium to be scanned are always in setpoint distance, then aforementioned process is in circulation always; If detect that the acquisition window of wand exceeds setpoint distance away from medium to be scanned, then enter the process of wand scanning completion status 208, the view data collected is carried out Text region 209, after Text region 209 completes, sends the data after identifying, Output rusults 210; Result is after rolling defeated, detect the state 211 of merit button, enter corresponding function key process 212 accordingly, as operations such as the change of nonfunctional key, carriage return, line feed; After processing, get back to waiting status 201, wait for the textual scan again of user.
In sum, according to wand of the present invention, it can substitute mechanical activation device of the prior art, thus effectively reduces the loss of pen tip, extends the serviceable life of wand.On the other hand, The invention also achieves the simplification of wand structure, thus reduce production cost and assembly difficulty.In addition, because infrarede emitting diode power consumption is very low, very little to kwh loss, therefore wand of the present invention can be in running order for a long time, operability is comparatively strong, is beneficial to extensive popularization.
Be appreciated that the present invention is described by some embodiments, those skilled in the art know, without departing from the spirit and scope of the present invention, can carry out various change or equivalence replacement to these characteristic sum embodiments.In addition, under the teachings of the present invention, can modify to adapt to concrete situation and material to these characteristic sum embodiments and can not the spirit and scope of the present invention be departed from.Therefore, the present invention is not by the restriction of specific embodiment disclosed herein, and the embodiment in the right of all the application of falling into all belongs to protection scope of the present invention.
Claims (11)
1. a wand (B), is characterized in that, include:
Housing (10), it offers acquisition window (11);
Infrared launcher (20), at described acquisition window after medium to be scanned, produce excitation signal;
Infrared receiving device (21), comprises infrared photodiode, for receiving described excitation signal, and by being converted into digital signal after processing of circuit;
Main circuit board module, is arranged on the inside of described housing, for receiving and processing described digital signal, forms light path to control light path light fixture (41) luminescence; And
Image acquisition and processing device, comprises imageing sensor (30), for carrying out image acquisition when light path is opened;
Described infrared photodiode is integrated in the inside of imageing sensor (30);
Described main circuit board module includes
Main circuit board (40);
Digital signal processor, is arranged on described main circuit board, for the treatment of to receive through infrared receiving device 21 and by the digital signal after processing of circuit; And
For generation of the function button of operational order, arrange on the housing, and be connected with described digital signal processor electricity;
Wherein, be connected with described digital signal processor electricity for generation of the light path light fixture (41) being irradiated to medium optical path to be scanned.
2. wand as claimed in claim 1, it 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, for receiving described infrared signal, and produces digital signal after processing of circuit.
3. wand as claimed in claim 2, it is characterized in that, described image acquisition and processing device comprises:
Image sensor board;
Imageing sensor (30), is arranged on described image sensor board, for gathering image; And camera lens, be arranged on described image sensor board, for light path is projected described imageing sensor.
4. wand as claimed in claim 3, it is characterized in that, described infrared photodiode is integrated in the inside of described imageing sensor.
5. wand as claimed in claim 1, is characterized in that, also include connection seat between plate, be connected between described image sensor board and described main circuit board.
6. wand as claimed in claim 1, it is characterized in that, described wand also includes data-interface, is arranged on described main circuit board, for by image transmitting to outer computer or other storage facilitiess.
7. wand as claimed in claim 6, it is characterized in that, described data-interface is USB interface.
8. wand as claimed in claim 1, it is characterized in that, described wand inside is provided with image processor.
9. wand as claimed in claim 1, it is characterized in that, the distance of described acquisition window and medium to be scanned is less than 5mm.
10. be applied to a scan method for the wand according to any one of claim 1 ~ 9, it is characterized in that, described scan method comprises:
A (), when described acquisition window is after medium to be scanned, described infrared launcher produces excitation signal, and described infrared receiving device receives described excitation signal, and by being converted into digital signal after processing of circuit;
B () described main circuit board module receives and processes described digital signal, form light path to control the luminescence of light path light fixture;
C () described image acquisition and processing device, when light path is opened, carries out image acquisition.
11. scan methods as claimed in claim 10, it is characterized in that, described step (a) comprising:
Described infrared launcher (21) comprises infrarede emitting diode, and described infrarede emitting diode launches 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110272654.6A CN102999180B (en) | 2011-09-15 | 2011-09-15 | A kind of wand and scan method thereof |
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| CN201110272654.6A CN102999180B (en) | 2011-09-15 | 2011-09-15 | A kind of wand and scan method thereof |
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| CN102999180A CN102999180A (en) | 2013-03-27 |
| CN102999180B true CN102999180B (en) | 2016-04-20 |
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| 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 |
| 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 |
| 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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| US4072859A (en) * | 1976-10-04 | 1978-02-07 | Recognition Equipment Incorporated | Wand turn-on control |
| US5808285A (en) * | 1990-09-17 | 1998-09-15 | Metrologic Instruments, Inc. | Portable code symbol reading device with one-way wireless data packet transmission link to base unit employing condition-dependent acoustical signalling for data packet reception acknowledgement |
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