CN210573686U - Erasing device for white board covered with dot matrix codes - Google Patents
Erasing device for white board covered with dot matrix codes Download PDFInfo
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- CN210573686U CN210573686U CN201921852837.3U CN201921852837U CN210573686U CN 210573686 U CN210573686 U CN 210573686U CN 201921852837 U CN201921852837 U CN 201921852837U CN 210573686 U CN210573686 U CN 210573686U
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Abstract
The utility model provides an erasing device of a dot matrix code-covered white board, which comprises an eraser and an intelligent pen, wherein the eraser, the intelligent pen and the electronic white board are matched for use, the electronic white board is provided with a dot matrix film layer capable of identifying a dot matrix array, the intelligent pen is provided with a writing mode and an erasing mode, the intelligent pen comprises a contact switch, and the contact switch is arranged at the front section of a pen body of the intelligent pen and is used for switching the erasing mode of the intelligent pen; the blackboard eraser comprises a groove for accommodating the front section of the pen body of the intelligent pen, and a trigger unit corresponding to the contact switch is arranged in the groove; has the advantages that: the button in the program is replaced by the contactless switch, so that the intelligent pen is inserted into the blackboard eraser and moves along with the blackboard eraser, and handwriting on the electronic whiteboard and electronic handwriting on the terminal are erased simultaneously.
Description
Technical Field
The utility model relates to an eraser technical field, in particular to cover erasing device of dot matrix code blank.
Background
The electronic whiteboard has been developed from a common whiteboard, and with the development of technology and the market demand, an interactive electronic whiteboard has appeared. The interactive electronic whiteboard can be in information communication with a computer, the electronic whiteboard is connected to a terminal such as a PC, the content on the PC is projected onto the screen of the electronic whiteboard by using a projector, and a large-screen interactive collaboration meeting or teaching environment can be constructed under the support of a special application program. The special electronic pen is used for replacing a mouse to operate on the whiteboard, any application program can be run, and any operation which can be realized by using a keyboard and the mouse on a computer, such as editing, annotating, saving and the like can be carried out on files.
The working principle of the existing electronic whiteboard is divided into a resistance type, an electromagnetic type, an optical type, an ultrasonic type and the like. However, the existing electronic whiteboard has a complex structure and high finished product.
In addition, when a user of the electronic whiteboard uses a specific electronic pen to draw or write on the electronic whiteboard, if the existing handwriting or drawing needs to be erased, the user needs to first click a button in the program with the electronic pen, call up an eraser tool, and then drag the eraser tool displayed on the electronic whiteboard with the electronic pen to erase. If the written handwriting and the drawing are stored in the storage device of the mobile terminal matched with the electronic whiteboard to form the electronic writing, when the writing and the electronic writing on the whiteboard film of the electronic whiteboard need to be erased simultaneously, the traditional blackboard eraser cannot erase the handwriting on the surface of the electronic whiteboard and erase the electronic writing simultaneously, which does not accord with the habit of the traditional blackboard or whiteboard of people, and frequent program conversion is needed in the writing and erasing processes, so that the use is very inconvenient.
In view of the above, it is necessary to design an erasing device that can erase the writing on the surface of the electronic whiteboard, and more importantly, can also erase the writing on the electronic whiteboard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cover erasing device of dot matrix code blank uses on whiteboard, replaces the button in the procedure through setting up contactless switch, realizes through inserting the intelligence pen in the blackboard eraser, along with the blackboard eraser removal, erases the electronic handwriting on handwriting and the terminal on the whiteboard simultaneously.
In order to realize the purpose, the utility model provides a following technical scheme:
the utility model provides a cover erasing device of dot matrix code blank, includes blackboard eraser, intelligent pen, blackboard eraser, intelligent pen and whiteboard cooperation use, whiteboard has the dot matrix rete that can discern the dot matrix array, a serial communication port, intelligent pen has the writing mode and erases the mode, intelligent pen includes: the pressure sensor is arranged at the pen point of the intelligent pen; the image sensor is arranged at the front section of the intelligent pen body; the processor is used for collecting pressure data information sensed by the pressure sensor and instant image information acquired by the image sensor, controlling the working state according to the pressure data information, processing the instant image information, acquiring two-dimensional coordinate information, and sending the two-dimensional coordinate information to the terminal through the wireless transceiver; the blackboard eraser comprises a groove for accommodating the front section of the pen body of the intelligent pen;
the intelligent pen erasing device further comprises an actuating mechanism, wherein the actuating mechanism is provided with a sensor used for detecting whether the intelligent pen is inserted on the blackboard eraser or not and used for actuating an intelligent pen erasing mode.
Preferably, the sensor has no actual contact with the smart pen, and the sensor detects whether the smart pen is inserted on the eraser by using the change of the magnetic field.
Preferably, the sensor comprises a reed switch, the reed switch is arranged in the blackboard eraser, and a magnet is arranged in the smart pen.
Preferably, the sensor has no actual contact with the eraser, and the sensor detects whether the smart pen is inserted on the eraser by using the change of the magnetic field.
Preferably, the sensor comprises a hall element, the hall element is installed in the smart pen, and a magnet is installed in the eraser.
Preferably, the intelligent pen further comprises an infrared light source arranged at the front end of the pen body of the intelligent pen.
Preferably, the wiping surface of the blackboard eraser is provided with a through hole, the through hole corresponds to the groove, and the through hole can pass through an infrared light source.
Preferably, the erasing mode is used for erasing the electronic handwriting on the terminal by the intelligent pen.
Preferably, the erasing mode is used for erasing handwriting on the electronic whiteboard by using the eraser.
Preferably, the writing mode is used for the intelligent pen to write on the electronic whiteboard so as to form writing handwriting and electronic writing handwriting.
Through implementing above technical scheme, have following technological effect: the use is convenient, and the cost is low; and simultaneously erasing the handwriting on the electronic whiteboard and the electronic handwriting on the terminal through the matching of the intelligent pen and the blackboard eraser.
Drawings
Fig. 1 is a perspective view of the erasing device of the present invention;
fig. 2 is a cross-sectional view of the erasing apparatus of the present invention;
FIG. 3 is another cross-sectional view of the erasing device of the present invention
Fig. 4 is a schematic diagram of the lattice array of the lattice film layer of the present invention.
1. An intelligent pen; 101. a magnet; 102. an image sensor; 103. a processor; 104. an infrared light source; 105. a Hall element; 2. erasing the blackboard; 201. a groove; 202. a reed switch; 203. a through hole; 204. and a magnet.
Detailed Description
For better understanding of the technical solutions of the present invention, the following detailed description of the embodiments provided in the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1 and 2, an erasing device for covering a dot matrix code whiteboard comprises an eraser 2 and an intelligent pen 1, wherein the eraser 2 and the intelligent pen 1 are used in cooperation with an electronic whiteboard, the electronic whiteboard has a dot matrix film layer capable of identifying a dot matrix array, the intelligent pen 1 has a writing mode, and the intelligent pen 1 comprises: the pressure sensor is arranged at the pen point of the intelligent pen 1; the image sensor 102 is arranged at the front section of the pen body of the intelligent pen 1; the processor 103 is used for collecting pressure data information sensed by the pressure sensor and instant image information acquired by the image sensor 102, controlling the working state according to the pressure data information, processing the instant image information, acquiring two-dimensional coordinate information, and sending the two-dimensional coordinate information to the terminal through the wireless transceiver; starting the intelligent pen 1, writing on the electronic whiteboard by the intelligent pen 1, reading image information on the electronic whiteboard by the image sensor 102, combining with pressure data information, processing by the processor 103 to form an electronic writing data packet, transmitting the data packet to a terminal by the wireless transceiver, and displaying electronic writing on the terminal; the intelligent pen 1 writes on the electronic whiteboard, and formed writing handwriting is also reserved.
The intelligent pen erasing device further comprises an actuating mechanism, wherein the actuating mechanism is provided with a sensor used for detecting whether the intelligent pen 1 is inserted on the eraser 2 or not and is used for actuating an erasing mode of the intelligent pen 1.
In the erasing mode of the intelligent pen 1, the intelligent pen 1 is inserted into a groove 201 in an eraser 2, the sensor is not in actual contact with the intelligent pen 1, and the sensor detects whether the intelligent pen 1 is inserted on the eraser 2 by using the change of a magnetic field; the sensor comprises a reed switch 202, wherein the reed switch 202 is arranged in the blackboard eraser 2, and a magnet 101 is arranged in the smart pen 1; the reed switch 202 of the magnet 101 on the intelligent pen 1 in the groove 201 is in non-contact to activate the erasing module of the intelligent pen 1, the erasing module transmits data to the processor 1 (the integrated module and the processor are integrated on the main board), and the erasing mode of the intelligent pen 1 is switched; the intelligent pen 1 reads image information and pressure data information in a block where the eraser 2 moves on the electronic whiteboard, the processor 103 processes the extracted information into a data packet needing to be erased, the data packet is transmitted to the terminal, and the electronic handwriting corresponding to the eraser in the moving block of the electronic whiteboard is erased, so that the functions of simultaneously erasing the electronic handwriting and the handwriting are formed.
The intelligent pen 1 further comprises an infrared light source 104 arranged at the front end of the pen body of the intelligent pen 1; the wiping surface of the blackboard eraser 2 is provided with a through hole 203, the through hole 203 corresponds to the groove 201, and the through hole 203 can pass through the infrared light source 104. Furthermore, one end of the through hole 203 close to the wiping surface of the eraser 2 can be covered with a light-conducting material, so that the integrity of the wiping surface of the eraser 2 is not damaged.
And the erasing mode is used for erasing the electronic handwriting on the terminal by the intelligent pen 1.
The erasing mode is used for erasing the handwriting on the electronic whiteboard by the eraser 2.
The writing mode is used for the intelligent pen 1 to write on the electronic whiteboard to form writing handwriting and electronic writing handwriting.
As shown in fig. 3, in another embodiment, in the erasing mode of the smart pen 1, the smart pen 1 is inserted into a groove 201 in an eraser 2, the sensor is not in actual contact with the eraser 2, and the sensor detects whether the smart pen 1 is inserted on the eraser 2 by using the change of the magnetic field; the sensor comprises a Hall element 105, the Hall element 105 is arranged in the intelligent pen 1, and a magnet 204 is arranged in the eraser 2; the Hall element 105 on the intelligent pen 1 is in non-contact with the magnet 204 in the groove 201, the erasing module of the intelligent pen 1 is activated, the erasing module transmits data to the processor 1 (the integrated module and the processor are integrated on the mainboard), and the erasing mode of the intelligent pen 1 is switched; the intelligent pen 1 reads image information and pressure data information in a block where the eraser 2 moves on the electronic whiteboard, the processor 103 processes the extracted information into a data packet needing to be erased, the data packet is transmitted to the terminal, and the electronic handwriting corresponding to the eraser in the moving block of the electronic whiteboard is erased, so that the functions of simultaneously erasing the electronic handwriting and the handwriting are formed.
The intelligent pen 1 further comprises an infrared light source 104 arranged at the front end of the pen body of the intelligent pen 1; the wiping surface of the blackboard eraser 2 is provided with a through hole 203, the through hole 203 corresponds to the groove 201, and the through hole 203 can pass through the infrared light source 104. Furthermore, one end of the through hole 203 close to the wiping surface of the eraser 2 can be covered with a light-conducting material, so that the integrity of the wiping surface of the eraser 2 is not damaged.
And the erasing mode is used for erasing the electronic handwriting on the terminal by the intelligent pen 1.
The erasing mode is used for erasing the handwriting on the electronic whiteboard by the eraser 2.
The writing mode is used for the intelligent pen 1 to write on the electronic whiteboard to form writing handwriting and electronic writing handwriting.
In principle, the ferrite element can attract the magnetic field and concentrate the magnetic field around the hall element, so that the magnet in the smart pen can be made small, with a thickness of about 1mm and a diameter of about 3 mm. Alternatively, a magnet (not shown) may be mounted near the hall element to locally strengthen the magnetic field on the hall element. Thus, only a small increase in the magnetic field is required to turn the Hall element on or off.
Therefore, the sensor capable of operating in a non-contact manner can be used for starting the erasing mode after the intelligent pen 1 is inserted into the eraser 2.
As shown in fig. 4, a plurality of adjacent dots in the dot matrix array of the dot matrix film layer form a minimum data unit, the middle minimum data unit is a minimum data unit formed by 6 × 6 code dots, each code dot in each data unit has a corresponding reference center, and deviation information of each code dot relative to its reference center forms a characteristic that the minimum data unit is different from other minimum data units. The coordinates of different positions on the writing paper can be calibrated through the characteristics, and the digitization precision of the writing content can be accurate to a micron level by adopting the method.
It is right above the embodiment of the present invention provides a cover erasing device of dot matrix code whiteboard, which has been introduced in detail, to the general technical personnel in the field, according to the embodiment of the present invention, there is a change part on the concrete implementation and the application range, to sum up, this description content should not be understood as the limitation of the present invention.
Claims (10)
1. The utility model provides a cover erasing device of dot matrix code blank, includes blackboard eraser, intelligent pen, blackboard eraser, intelligent pen and whiteboard cooperation are used, whiteboard has the dot matrix rete that can discern the dot matrix array, intelligent pen has the writing mode and erases the mode, intelligent pen includes: the pressure sensor is arranged at the pen point of the intelligent pen; the image sensor is arranged at the front section of the intelligent pen body; the processor is used for collecting pressure data information sensed by the pressure sensor and instant image information acquired by the image sensor, controlling the working state according to the pressure data information, processing the instant image information, acquiring two-dimensional coordinate information, and sending the two-dimensional coordinate information to the terminal through the wireless transceiver;
the blackboard eraser comprises a groove for accommodating the front section of the pen body of the intelligent pen;
the intelligent pen erasing device is characterized by further comprising an actuating mechanism, wherein the actuating mechanism is provided with a sensor used for detecting whether the intelligent pen is inserted on the blackboard eraser or not and used for actuating an intelligent pen erasing mode.
2. The erasing device of the white board covered with the dot matrix code as claimed in claim 1, wherein the sensor has no actual contact with the smart pen, and the sensor uses the change of the magnetic field to detect whether the smart pen is inserted on the board eraser.
3. An eraser apparatus according to claim 2, wherein said sensor comprises a reed switch, said reed switch being mounted in said eraser and a magnet being mounted in said smart pen.
4. The erasing device of the dot matrix code covered whiteboard of claim 1, wherein the sensor has no actual contact with the eraser, and the sensor uses the change of the magnetic field to detect whether the smart pen is inserted on the eraser.
5. The erasing device of the white board covered with the dot matrix code as claimed in claim 2, wherein the sensor comprises a hall element, the hall element is installed in the eraser, and a magnet is installed in the eraser.
6. The erasing device of the white board covered with the dot matrix code according to claim 3 or 5, wherein the smart pen further comprises an infrared light source disposed at the front end of the pen body of the smart pen.
7. The erasing device of the dot-matrix-code-covered whiteboard as claimed in claim 6, wherein a wiping surface of the eraser is provided with a through hole corresponding to the groove, and the through hole can pass through an infrared light source.
8. The erasing device of the dot matrix covered whiteboard as claimed in claim 7, wherein the erasing mode is used for the intelligent pen to erase the electronic handwriting on the terminal.
9. The erasing device of the dot-matrix-code-covered whiteboard as claimed in claim 7, wherein the erasing mode is used for erasing writing on the electronic whiteboard by using the eraser.
10. The erasing device of the dot matrix covered whiteboard as claimed in claim 7, wherein the writing mode is used for the intelligent pen to write on the electronic whiteboard to form writing handwriting and electronic writing handwriting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852837.3U CN210573686U (en) | 2019-10-31 | 2019-10-31 | Erasing device for white board covered with dot matrix codes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852837.3U CN210573686U (en) | 2019-10-31 | 2019-10-31 | Erasing device for white board covered with dot matrix codes |
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| Publication Number | Publication Date |
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| CN210573686U true CN210573686U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921852837.3U Active CN210573686U (en) | 2019-10-31 | 2019-10-31 | Erasing device for white board covered with dot matrix codes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110647249A (en) * | 2019-10-31 | 2020-01-03 | 深圳腾千里科技有限公司 | Erasing device for white board covered with dot matrix codes |
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- 2019-10-31 CN CN201921852837.3U patent/CN210573686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110647249A (en) * | 2019-10-31 | 2020-01-03 | 深圳腾千里科技有限公司 | Erasing device for white board covered with dot matrix codes |
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