CN203371959U - Multifunctional blackboard erasing and writing device with machine vision - Google Patents
Multifunctional blackboard erasing and writing device with machine vision Download PDFInfo
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- CN203371959U CN203371959U CN201320360593.3U CN201320360593U CN203371959U CN 203371959 U CN203371959 U CN 203371959U CN 201320360593 U CN201320360593 U CN 201320360593U CN 203371959 U CN203371959 U CN 203371959U
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Abstract
The utility model provides a multifunctional blackboard erasing and writing device with machine vision. The multifunctional blackboard erasing and writing device comprises a blackboard, a two-shaft driving mechanism, a transmission mechanism and an executing end, the two-shaft driving mechanism comprises an X-direction stepping motor, a Y-direction stepping motor and a control circuit, and the control circuit controls the X-direction stepping motor and the Y-direction stepping motor to operate; the transmission mechanism is connected with the two-shaft driving mechanism and comprises an X-direction transmission mechanism and a Y-direction transmission mechanism, the X-direction transmission mechanism moves horizontally, and the Y-direction transmission mechanism moves vertically, is arranged on the X-direction transmission mechanism, and horizontally moves along with the X-direction transmission mechanism in whole; the executing end is connected with the transmission mechanism and conducts erasing or drawing. The multifunctional blackboard erasing and writing device with the machine vision has a full-automatic drawing function and a full-automatic identification erasing function based on the machine vision, and is simple in structure, easy and convenient to operate, good in transportability and suitable for most of blackboard structures.
Description
Technical field
The utility model relates to a kind of multi-functional blackboard erasing apparatus with machine vision
Background technology
Blackboard is requisite the same teaching aid in teaching, no matter is from primary school or to university, or, from enterprise technology section to factory floor, often all will uses blackboard, carries out teaching or the interchange of technical experience of knowledge.At present generally by manually with blackboard eraser, carrying out the chalk stain of erasing blackboard, this way is time-consuming, effort not only, and directly cause user's labour intensity to increase, more seriously the close contact chalk dust makes the user independently not suck a large amount of dust, easily suffers from respiratory disease.?
And, at the part course, as mathematics, in the teaching of physics etc., a lot of teachers still need to be by set square, the drawing tools such as compasses, manual drawing basic geometric figure on blackboard, this type of way not only needs miscellaneous drawing tools, and being subject to again the restriction of the size of drawing tools own, the pattern class of drawing out is few, the more important thing is that the dimension of picture precision of drawing out also is difficult to guarantee, this,, concerning some accurate calculating and rigorous analysis work, is undoubtedly fatal.And this way, to height, not high teacher uses drawing tools also to have much challenge.Traditional drawing method causes tremendous influence to the teacher's teaching of teaching, and not only affects the efficiency of attending class, and more has a strong impact on user's physical and mental health.The tradition drawing tools, be not suitable for the trend of current digital information high speed development.
Comprehensively above-mentioned, there is following problem in existing technology: 1, can not automatically wipe and Automatic Drawing; The chalk dust brought while 2, wiping has a strong impact on the healthy of blackboard user; 3, there are many drawbacks in traditional drawing practice, and the drawing instrument kind lacks, and changeability is poor, and drafting accuracy is low, has increased user's working strength.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of multi-functional blackboard erasing apparatus with machine vision, and it has realized auto-erasing and drawing, prevents that chalk dust from bringing harm to academics and students's health.
For solving the problems of the technologies described above, the technological means that the utility model adopts is:
Multi-functional blackboard erasing apparatus with machine vision described in the utility model comprises blackboard, diaxon driving mechanism, transmission mechanism and actuating station, the diaxon driving mechanism, comprise X-direction stepper motor, Y-direction stepper motor and control circuit, described control circuit is controlled the running of X-direction stepper motor and Y-direction stepper motor; Transmission mechanism, be connected with the diaxon driving mechanism, comprises the X-direction transmission mechanism moved horizontally and carry out vertically mobile Y-direction transmission mechanism, and described Y-direction transmission mechanism is arranged on the X-direction transmission mechanism, and integral body moves horizontally with the X-direction transmission mechanism; Actuating station, be connected with described transmission mechanism, wiped or draw.
By control circuit, can control the running of X-direction stepper motor and Y-direction stepper motor, carry out auto-erasing or autochart thereby drive transmission device drives actuating station, and can realize fixing a point to wipe.
Described control circuit comprises photoelectric encoder, microcontroller, computer end and image-pickup device.
Described actuating station comprises erasing apparatus or picture device.Described erasing apparatus comprises to be wiped sleeve, is arranged on the first electromagnet and the first permanent magnet wiped in sleeve, be provided with the first spring between described the first electromagnet and the first permanent magnet, described the first electromagnet with wipe sleeve and be connected, described the first permanent magnet end is provided with the rubber of wiping use; Described picture device comprises to be write sleeve, the second electromagnet, the second permanent magnet, is arranged on the second spring between the second electromagnet and the second permanent magnet, described the second electromagnet with write sleeve and be connected, described the second permanent magnet end is provided with the pen of writing use.Can control rubber and pen and the contacting or leaving of blackboard surface by the connecting and disconnecting of the circuit of controlling the first electromagnet and the second electromagnet.
Described blackboard upper and lower sides is provided with cross slide way, and described slide block slides in cross slide way; Be provided with longitudinal rail on described crossbeam, described actuating station is slided in longitudinal rail.Cross slide way and longitudinal rail can limit actuating station and move on the direction perpendicular to blackboard, and the motion of actuating station is more easily controlled.
Described X-direction transmission mechanism comprises the first main pulley on the axle that is arranged in pairs in the X-direction stepper motor, described the first main pulley is distributed in the upper and lower both sides of blackboard, described the first main pulley is connected with the first belt, on described the first belt, is fixed with slide block, on described slide block, is fixed with crossbeam; Described Y-direction stepper motor is fixedly connected on an end of crossbeam, and described Y-direction transmission mechanism comprises the second main pulley on the axle that is arranged on the Y-direction stepper motor, on described the second main pulley, is provided with the second belt, on described the second belt, is fixedly connected with actuating station.By this structure, can realize fixing a point to wipe and autochart.
Adopt above technical scheme, the obtained beneficial effect of the utility model is:
1. possess automatic draft function and the full-automatic identification erase feature based on computer vision.
2. have simple in structurely, easy and simple to handle, the characteristics of portable good and highly versatile, be applicable to most of blackboard structures.
3. the letter written with chalk on computer recognition system identification blackboard, can remove automatically, also can carry out targeted elimination in the selected concrete zone of computer end by the operator.
The accompanying drawing explanation
The general structure schematic diagram that Fig. 1 is the utility model multi-functional blackboard erasing apparatus;
The side view of the Y-direction transmission mechanism that Fig. 2 is the utility model multi-functional blackboard erasing apparatus;
The structure chart of the actuating station that Fig. 3 is the utility model multi-functional blackboard erasing apparatus.
The specific embodiment
As shown in Figure 1, multi-functional blackboard erasing apparatus with machine vision described in the utility model comprises blackboard, diaxon driving mechanism, transmission mechanism and actuating station 11, described diaxon driving mechanism drive transmission device motion, drive the actuating station 11 be positioned on transmission mechanism and carry out the action of wiping or drawing.
The diaxon driving mechanism, comprise X-direction stepper motor 1, Y-direction stepper motor 2 and control circuit, described control circuit is controlled the running of X-direction stepper motor 1 and Y-direction stepper motor 2, described control circuit comprises the diaxon analog line driver, microcontroller, photoelectric encoder and computer end, described microcontroller can be controlled the rotating speed size of X-direction stepper motor 1 and Y-direction stepper motor 2, the angle that photoelectric encoder turns over for pulse signal of the every acceptance of axle of measuring stepper motor, thereby can determine the particular location of actuating station 11 at blackboard, microcontroller is the concrete coordinate position feedback to the computer end on blackboard by actuating station 11, computer end also can precisely be controlled the driving of X-direction stepper motor 1 and Y-direction stepper motor 2 via microcontroller simultaneously.
Transmission mechanism, with the diaxon driving mechanism, be connected, comprise the X-direction transmission mechanism that carries out transverse shifting and the Y-direction transmission mechanism vertically moved, described X-direction transmission mechanism comprises the first main pulley 4 on the axle that is arranged in pairs in X-direction stepper motor 1 and the cross slide way 9 that is arranged on the upper and lower both sides of blackboard, described the first main pulley 4 is distributed in the upper and lower both sides of blackboard, described the first main pulley 4 is connected with the first belt 3, be fixed with slide block 5 on described the first belt 3, the corresponding setting of described slide block 5 in the vertical directions, and can on cross slide way 9, slide, be fixed with crossbeam 6 on described slide block 5, be provided with longitudinal rail on described crossbeam 6, described Y-direction stepper motor 2 and Y-direction transmission mechanism are arranged on crossbeam 6, described Y-direction transmission mechanism comprises the second main pulley 8 on the axle that is arranged on Y-direction stepper motor 2, be arranged on the second belt 10 on the axle of the second main pulley 8, fixing actuating station 11 on described the second belt 10, described actuating station 11 can be slided on longitudinal rail, Y-direction stepper motor 2 is fixedly connected on an end of crossbeam 6, be connected with the second main pulley 8 on the axle of described Y-direction stepper motor 2, be provided with the second belt 10 on described the second main pulley 8, be fixedly connected with erasing apparatus 12 and picture device 13 on described the second belt 10.
Actuating station 11, comprise erasing apparatus 12 and picture device 13, described erasing apparatus 12 comprises wipes sleeve 121, be arranged on the first electromagnet 122 and the first permanent magnet 123 wiped in sleeve 121, described the first permanent magnet 123 upper ends are the S utmost point, be provided with the first spring 124 between described the first electromagnet 122 and the first permanent magnet 123, described the first electromagnet 122 1 ends are fixed on to be wiped in sleeve 121, described the first permanent magnet 123 ends are provided with the rubber 125 that erasing chalk 135 words are used, the first spring 124 can guarantee that rubber 125 contacts all the time with the blackboard surface when wiping, described picture device comprises to be write sleeve 131, is arranged at the second electromagnet 132, the second permanent magnet 133 in sleeve, be arranged on the second spring 134 between the second electromagnet 132 and the second permanent magnet 133, described the second permanent magnet 133 upper ends are the S utmost point, described the second permanent magnet 133 ends are provided with the pen 135 of writing use, described the second electromagnet 132 1 ends are fixed on to be write in sleeve 131, and the second spring 134 can guarantee that nib contacts all the time with the blackboard surface when writing.The break-make of the power supply of the first electromagnet 122 and the second electromagnet 132 is controlled by the IO mouth of microcontroller.
When the mobile erasing apparatus 12 of needs and picture device 13, in order to guarantee pen 135 and rubber 125, with the surface of blackboard, be not in contact with one another.Can be by controlling the break-make of the corresponding IO mouth of microcontroller external circuits, making the first electromagnet 122 and the second electromagnet 132 lower ends is the N level, synonyms pole attracts each other, the first electromagnet 122 and the first permanent magnet 123 are inhaled mutually, the second electromagnet 132 is inhaled mutually with the second permanent magnet 133, thereby rubber 125 and pen 135 are upwards mentioned, guarantee that, in mobile process, 135, pen and rubber 125 are not in contact with one another with the blackboard surface.
When needs are realized auto-erasing, NI Vision Builder for Automated Inspection converts the blackboard information captured to picture signal by image-pickup device, re-sends to image pick-up card, according to image pixel distribution and the information such as brightness, color, is transformed into digitized signal.The digitized signal be transformed into is sent to computer, and computer carries out denoising, enhancing, restores, cuts apart, extracts the processing procedures such as feature image.After treatment, the quality of output is strengthened image significantly, has both improved its visual effect, is convenient to again the follow-up analysis of computer, processing etc.By the image to after processing, analyzed, contrast according to the picture black antholeucin, thereby can identify has a letter written with chalk zone on blackboard, can be in the hope of the rectangle envelope of this subregion by calculating, and calculate this rectangle envelope function, and convert it into digital controlled signal, send to microcontroller, carried out the motion of Driving Stepping Motor by microcontroller, thereby the automatic identification that can realize the blackboard eraser removal apparatus is removed, also can be by the operator in the selected concrete zone of computer end, and send to microcontroller by computer, carried out the motion of Driving Stepping Motor by microcontroller, thereby the automatic pointing that can realize device for blackboard eraser is removed, greatly improved the intelligent degree of the utility model blackboard eraser write device.
Picture is realized by the motion on picture device 13 horizontal directions and the motion on vertical direction, and is controlled by microcontroller.Motion on horizontal direction: by X-direction stepper motor 1 by the X-direction transmission mechanism drive slide block 5 transversely guide rail 9 move in the horizontal direction, thereby drive crossbeam 6 and the 13 along continuous straight runs motions of picture device.Motion on vertical direction is to drive picture device 13 mobile realization on longitudinal rail 7 by Y-direction stepper motor 2 by transmission mechanism.Motion on horizontal direction and the motion on vertical direction can synchronously be carried out.Can control the size of the rotating speed of X-direction stepper motor 1 and Y-direction stepper motor 2 by microcontroller, synthetic from speed, the total displacement curve is that horizontal direction displacement and vertical direction displacement are synthetic according to vector triangle.And displacement is the function of time, therefore total displacement is equivalent to the integration of speed about the time.Action time and apply rotating speed and all can control by microcontroller, by the rotating speed size of controlling X-direction stepper motor 1 and Y-direction stepper motor 2 device 13 of can realizing drawing, draw out different curvilinear paths on blackboard.
Claims (8)
1. the multi-functional blackboard erasing apparatus with machine vision is characterized in that:
Comprise blackboard;
The diaxon driving mechanism, comprise X-direction stepper motor, Y-direction stepper motor and control circuit, and described control circuit is controlled the running of X-direction stepper motor and Y-direction stepper motor;
Transmission mechanism, be connected with the diaxon driving mechanism, comprises the X-direction transmission mechanism moved horizontally and carry out vertically mobile Y-direction transmission mechanism, and described Y-direction transmission mechanism is arranged on the X-direction transmission mechanism, and integral body moves horizontally with the X-direction transmission mechanism;
Actuating station, be connected with described transmission mechanism, wiped or draw.
2. the multi-functional blackboard erasing apparatus with machine vision according to claim 1, it is characterized in that: described control circuit comprises photoelectric encoder, microcontroller, computer end and image-pickup device.
3. the multi-functional blackboard erasing apparatus with machine vision according to claim 1, it is characterized in that: described actuating station comprises erasing apparatus or picture device.
4. the multi-functional blackboard erasing apparatus with machine vision according to claim 3, it is characterized in that: described erasing apparatus comprises to be wiped sleeve, is arranged on the first electromagnet and the first permanent magnet wiped in sleeve, be provided with the first spring between described the first electromagnet and the first permanent magnet, described the first electromagnet with wipe sleeve and be connected, described the first permanent magnet end is provided with the rubber of wiping use.
5. the multi-functional blackboard erasing apparatus with machine vision according to claim 3, it is characterized in that: described picture device comprises to be write sleeve, the second electromagnet, the second permanent magnet, is arranged on the second spring between the second electromagnet and the second permanent magnet, described the second electromagnet with write sleeve and be connected, described the second permanent magnet end is provided with the pen of writing use.
6. the multi-functional blackboard erasing apparatus with machine vision according to claim 1, it is characterized in that: described X-direction transmission mechanism comprises the first main pulley on the axle that is arranged in pairs in the X-direction stepper motor, described the first main pulley is distributed in the upper and lower both sides of blackboard, described the first main pulley is connected with the first belt, be fixed with slide block on described the first belt, on described slide block, be fixed with crossbeam; Described Y-direction stepper motor is fixedly connected on an end of crossbeam, and described Y-direction transmission mechanism comprises the second main pulley on the axle that is arranged on the Y-direction stepper motor, on described the second main pulley, is provided with the second belt, on described the second belt, is fixedly connected with actuating station.
7. the multi-functional blackboard erasing apparatus with machine vision according to claim 6, it is characterized in that: described blackboard upper and lower sides is provided with cross slide way, and described slide block slides in cross slide way.
8. the multi-functional blackboard erasing apparatus with machine vision according to claim 6, it is characterized in that: be provided with longitudinal rail on described crossbeam, described actuating station is slided in longitudinal rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320360593.3U CN203371959U (en) | 2013-06-21 | 2013-06-21 | Multifunctional blackboard erasing and writing device with machine vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320360593.3U CN203371959U (en) | 2013-06-21 | 2013-06-21 | Multifunctional blackboard erasing and writing device with machine vision |
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| CN203371959U true CN203371959U (en) | 2014-01-01 |
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| CN201320360593.3U Expired - Fee Related CN203371959U (en) | 2013-06-21 | 2013-06-21 | Multifunctional blackboard erasing and writing device with machine vision |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309373A (en) * | 2014-10-15 | 2015-01-28 | 福建省泉州市第七中学 | Multi-functional plotting instrument based on vision |
| CN107584938A (en) * | 2017-08-31 | 2018-01-16 | 吴素贞 | A kind of teaching plotting unit provided with dust guard |
| CN108583090A (en) * | 2018-04-27 | 2018-09-28 | 南开大学 | A kind of automatic blackboard eraser based on image recognition |
| CN108909290A (en) * | 2018-08-03 | 2018-11-30 | 安徽赛福贝特信息技术有限公司 | A kind of big data intelligence tracing device |
| CN109017073A (en) * | 2018-08-14 | 2018-12-18 | 燕山大学 | Vacuum negative pressure type Intelligent blackboard eraser and its control method |
| CN109109527A (en) * | 2018-08-11 | 2019-01-01 | 马慧芳 | Multifunctional wiping blackboard device |
| CN110022461A (en) * | 2019-03-20 | 2019-07-16 | 上海海事大学 | A kind of intelligent opinion collection device based on machine vision |
| CN110466276A (en) * | 2019-08-16 | 2019-11-19 | 华东师范大学 | A kind of Full automatic array type water spray drying blackboard eraser |
| CN111462551A (en) * | 2020-03-10 | 2020-07-28 | 浙江广厦建设职业技术学院 | Foreign language word assists teaching and uses electronic whiteboard display device |
-
2013
- 2013-06-21 CN CN201320360593.3U patent/CN203371959U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309373A (en) * | 2014-10-15 | 2015-01-28 | 福建省泉州市第七中学 | Multi-functional plotting instrument based on vision |
| CN107584938A (en) * | 2017-08-31 | 2018-01-16 | 吴素贞 | A kind of teaching plotting unit provided with dust guard |
| CN108583090A (en) * | 2018-04-27 | 2018-09-28 | 南开大学 | A kind of automatic blackboard eraser based on image recognition |
| CN108909290A (en) * | 2018-08-03 | 2018-11-30 | 安徽赛福贝特信息技术有限公司 | A kind of big data intelligence tracing device |
| CN109109527A (en) * | 2018-08-11 | 2019-01-01 | 马慧芳 | Multifunctional wiping blackboard device |
| CN109017073A (en) * | 2018-08-14 | 2018-12-18 | 燕山大学 | Vacuum negative pressure type Intelligent blackboard eraser and its control method |
| CN109017073B (en) * | 2018-08-14 | 2020-05-12 | 燕山大学 | Vacuum negative pressure type intelligent blackboard eraser and control method thereof |
| CN110022461A (en) * | 2019-03-20 | 2019-07-16 | 上海海事大学 | A kind of intelligent opinion collection device based on machine vision |
| CN110466276A (en) * | 2019-08-16 | 2019-11-19 | 华东师范大学 | A kind of Full automatic array type water spray drying blackboard eraser |
| CN111462551A (en) * | 2020-03-10 | 2020-07-28 | 浙江广厦建设职业技术学院 | Foreign language word assists teaching and uses electronic whiteboard display device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |