CN201465078U - electronic blackboard - Google Patents
electronic blackboard Download PDFInfo
- Publication number
- CN201465078U CN201465078U CN2009201227712U CN200920122771U CN201465078U CN 201465078 U CN201465078 U CN 201465078U CN 2009201227712 U CN2009201227712 U CN 2009201227712U CN 200920122771 U CN200920122771 U CN 200920122771U CN 201465078 U CN201465078 U CN 201465078U
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- Prior art keywords
- conductiving point
- conductiving
- chip microcomputer
- led lamp
- information handling
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Abstract
The utility model belongs to the technical field of teaching aids, disclosing an electronic blackboard. The electronic blackboard comprises a transparent writing board, an electronic pen, a control system and a function key group, wherein the transparent writing board is arranged above LED lights, electric conduction points respectively corresponding to the LED lights are embedded in the transparent writing board, and each electric conduction point is positioned right above the LED light corresponding to the electric conduction point; the electronic pen is a column of which the head is provided with an electric conduction pen point, and the electronic pen is used for contacting with the electric conduction points; the control system comprises an electric conduction point position recognition system and an information processing system; and the function key group comprises a writing function key and an erasing function key. Compared with the prior art, the electric conduction point position recognition system is adopted to determine the electric conduction point position; as the electric conduction point is positioned right above the LED light corresponding to the electric conduction point, writing chirography can be precisely displayed so as to realize the writing function and reserve the advantages of the traditional blackboard to the hilt; in addition, the utility model can be matched with message-handling systems, such as computers and the like.
Description
Technical field
The utility model relates to the technical field of teaching aid, relates in particular to a kind of electronic blackboard.
Background technology
Most of use chalk is write on traditional blackboard and is painted and carry out education activities in the teaching of school at present, has a lot of problems, and at first the teacher need directly contact chalk with hand, is being stained with chalk dust on hand easily; Secondly, in wiping the process of literal, the chalk dust of kicking up along with moving around of blackboard eraser is contaminated environment not only, transfers to drop on the human body also unhygienicly, particularly in teacher's suction body health is caused great infringement easily; And when using this blackboard, the student who is sitting in both sides is owing to reflective reason often can not be seen word on the blackboard clearly.At the problems referred to above, application number is that 200410040532.4 Chinese invention patent has been made useful improvement, and it discloses a kind of magnetic force electronic blackboard display system, is made up of magnetic force electronic blackboard, magnetic pen and magnetic blackboard eraser three parts.In the rectangular body opening of magnetic force electronic blackboard negative pole power supply layer, many light emitting diodes and conducting magnetic iron have been placed, when magnetic pen contact magnetic force electronic blackboard, conducting magnetic iron is moved and positive source is connected, light emitting diode is lighted, along with moving of magnetic pen, the path that light emitting diode is lighted overlaps with the magnetic pen motion track, thereby realizes the process that chalk is write on normal blackboard; During magnetic blackboard eraser contact magnetic force electronic blackboard, conducting magnetic iron is moved and positive source disconnects, and light emitting diode extinguishes, and along with magnetic blackboard eraser moves on the light emitting diode of lighting, the place of arrival is all extinguished and realized wiping of writing words.But the magnetic pen phase mutual interference between each display unit easily in writing process that should invent, therefore the writing that shows easily with the person's handwriting generation deviation of writing, secondly, because the pulse signal that conducting magnetic iron produces size is difficult to control, therefore be difficult to use in conjunction with computing machine.
Summary of the invention
Technical problem to be solved in the utility model is the present situation at prior art, provides a kind of simple and reasonable, the electronic blackboard that shows accurately and can use in conjunction with computing machine.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of electronic blackboard, comprise power supply and the circuit board that is electrically connected with power supply, and evenly be welded with LED lamp parallel with one another on the circuit board, also comprise:
The printing opacity clipboard, the printing opacity clipboard is located at the top of LED lamp, and is embedded with in the printing opacity clipboard and LED lamp conductiving point one to one, wherein, each conductiving point all be positioned at its corresponding LED lamp directly over;
Electronic writing pen, electronic writing pen are the columns that head has conductive pen point, and it is used to contact conductiving point;
Control system, it comprises conductiving point position-recognizing system and information handling system; The conductiving point position-recognizing system be used for determining the electronic writing pen contact conductiving point the position and send position signalling to information handling system; Information handling system is connected with the LED modulating signal, and it is used to receive the position signalling that the conductiving point position-recognizing system sends, and control and this position signalling corresponding LED lamp are luminous or extinguish;
The function key group, it comprises writing function key and erase feature key; The writing function key is connected with the information handling system signal, and it is used for writing signal to the information handling system transmission, and information handling system writes signal controlling according to this and position signalling corresponding LED lamp is luminous; The erase feature key is connected with the information handling system signal, and it is used for sending erase signal to information handling system, and information handling system is extinguished with position signalling corresponding LED lamp according to this erase signal control.
In order to obtain better technique effect, further technical measures also comprise:
Above-mentioned conductiving point position-recognizing system comprises single-chip microcomputer, and low level pin on the single-chip microcomputer and high level pin and conductiving point, electronic writing pen can form the loop.
Above-mentioned conductiving point is an integral piece, and it connects the high level pin on the single-chip microcomputer, and electronic writing pen connects the low level pin on the single-chip microcomputer, and the high level pin also is connected with diode.
Above-mentioned conductiving point comprises left conductiving point and right conductiving point, and left conductiving point and right conductiving point are connected low level pin and the high level pin on the single-chip microcomputer respectively, and the high level pin also is connected with diode.
Above-mentioned conductiving point is divided at least two conductiving point unit, is respectively the first conductiving point unit, the second conductiving point unit, until n conductiving point unit, and the conductiving point position-recognizing system comprises the first kind single-chip microcomputer and the second class single-chip microcomputer; All conductiving points of the first conductiving point unit are connected on the same pin of the second class single-chip microcomputer, simultaneously, all conductiving points of the first conductiving point unit are connected on the different pin of first kind single-chip microcomputer, all conductiving points of the second conductiving point unit are connected on another pin of the second class single-chip microcomputer, simultaneously, all conductiving points of the second conductiving point unit are connected on the different pin of first kind single-chip microcomputer, and the rest may be inferred for the conductiving point on remaining conductiving point unit and the connected mode of conductiving point position-recognizing system.
Be connected in same the second conductiving point unit on the class single-chip microcomputer ask at least between be separated with a conductiving point unit.
Above-mentioned function key group also comprises selects the look function key, select the look function key to be connected with the information handling system signal, it is used for sending color signal to information handling system, information handling system is sent the light of selected color according to this color signal control and position signalling corresponding LED lamp, on the other side, the LED lamp is the dual-colored LED lamp.
Above-mentioned LED lamp is arranged in cellular.
The color of above-mentioned conductiving point is consistent with the color of printing opacity clipboard.
The writing surface of above-mentioned printing opacity clipboard is a rough surface.
The below of above-mentioned circuit board is provided with the chalk writing blackboard, and the chalk writing blackboard is slidingly connected mutually with circuit board.
Compared with prior art, because the conductiving point position-recognizing system that the utility model adopts is determined the position of conductiving point, when electronic writing pen touches conductiving point, since conductiving point be positioned at its corresponding LED lamp directly over, therefore, the formed shape of finally lighting of LED lamp is identical with the track that electronic writing pen or blackboard eraser move, and therefore can accurately show the person's handwriting of writing, thereby realize the function write, kept the advantage of traditional blackboard to greatest extent; And the utility model can be used with information handling systems such as computing machines.
Description of drawings
Fig. 1 is the structural principle synoptic diagram of the utility model embodiment 1;
Fig. 2 is the structural principle synoptic diagram of the utility model embodiment 2;
Fig. 3 is the catenation principle synoptic diagram of the utility model embodiment conductiving point and single-chip microcomputer;
Fig. 4 looks synoptic diagram for the master of electronic blackboard among the utility model embodiment;
Fig. 5 is the diagrammatic cross-section of A-A position among Fig. 4.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail:
To embodiment shown in Figure 5, figure grade illustrates: circuit board 1, LED lamp 11, printing opacity clipboard 2 as Fig. 1, conductiving point 21, left conductiving point 21a, right conductiving point 21b, electronic writing pen 3, conductive pen point 31, control system 4, conductiving point position-recognizing system 41, single-chip microcomputer 411, diode 412, information handling system 42, function key group 5, writing function key 51, erase feature key 52 selects look function key 53, chalk writing blackboard 6.
A kind of electronic blackboard comprises power supply and the circuit board 1 that is electrically connected with power supply, evenly is welded with LED lamp 11 parallel with one another on the circuit board 1, also comprises:
In the present embodiment, conductiving point 21 is connected like this with the single-chip microcomputer 411 of conductiving point position-recognizing system 41: conductiving point 21 is divided at least two conductiving point unit, be respectively the first conductiving point unit, the second conductiving point unit, until n conductiving point unit, conductiving point position-recognizing system 41 comprises the first kind single-chip microcomputer and the second class single-chip microcomputer; All conductiving points 21 of the first conductiving point unit are connected on the same pin of the second class single-chip microcomputer, simultaneously, all conductiving points 21 of the first conductiving point unit are connected on the different pin of first kind single-chip microcomputer, all conductiving points 21 of the second conductiving point unit are connected on another pin of the second class single-chip microcomputer, simultaneously, all conductiving points 21 of the second conductiving point unit are connected on the different pin of first kind single-chip microcomputer, and the rest may be inferred with the connected mode of conductiving point position-recognizing system 41 for the conductiving point 21 on remaining conductiving point unit.Adopt above-mentioned connected mode, when writing, the second class single-chip microcomputer is at first judged the conductiving point 21 that electronic writing pen 3 is contacted, first kind single-chip microcomputer judges that again this conductiving point 21 is arranged in the particular location of its conductiving point unit, place then, not only effectively simple, and can reduce the use of a large amount of single-chip microcomputers, greatly reduce manufacturing cost.Simultaneously, in order to prevent the mixed opinion of the second class single-chip microcomputer input signal, be separated with a conductiving point unit between being connected between same the second conductiving point unit on the class single-chip microcomputer at least.
The utility model is achieved in that when writing, the writing function key 51 in the selection function key group 5 at first, when electronic writing pen 3 touches conductiving point 21, can cause the potential change of the single-chip microcomputer pin that this conductiving point 21 is connect, after conductiving point position-recognizing system 41 is determined its position, position signalling is sent to information handling system 42, information handling system 42 again according to writing function key 51 send to write the pairing LED lamp of signal and position signalling control and this conductiving point 21 11 luminous, along with moving of electronic writing pen 3, light successively with the conductiving point corresponding LED lamp of electronic writing pen or blackboard eraser process, since conductiving point be positioned at its corresponding LED lamp directly over, therefore, the formed shape of finally lighting of LED lamp is identical with the track that electronic writing pen or blackboard eraser move, thereby the function that realization is write. when wiping, selective erasing function key 52, its process is consistent when writing, information handling system 42 is extinguished with these conductiving point 21 pairing LED lamps 11 in erase signal that sends according to erase feature key 52 and position signalling control, thus the function that realization is wiped.
Light can show more colors when writing in order to make, so that the user can give top priority to what is the most important, the function key group 5 of present embodiment also comprises selects look function key 53, select look function key 53 to be connected with information handling system 42 signals, it is used for sending color signal to information handling system 42, information handling system 42 is sent the light of selecting color according to this color signal control with position signalling corresponding LED lamp 11, and on the other side, LED lamp 11 is dual-colored LED lamps.Select look function key 53 to be used with writing function key 51.
For fear of the inconsistent notice that influences the student of color because of conductiving point 21 and printing opacity clipboard 2, the color of conductiving point 21 is consistent with the color of printing opacity clipboard 2.Because black is a kind of color that the student relatively is accustomed to, and more meets student's visual custom, therefore, in this enforcement, printing opacity clipboard 2 is the black transparent plastic plate, and correspondingly, the color of above-mentioned conductiving point 21 is a black.
The writing surface of printing opacity clipboard 2 is a rough surface.The light that rough surface can make the LED lamp send forms diffuse reflection, produces soft visual effect, is difficult for allowing the student produce visual fatigue, improves teaching efficiency greatly.
The below of circuit board 1 is provided with chalk writing blackboard 6, and chalk writing blackboard 6 is slidingly connected mutually with circuit board 1.When having a power failure, circuit board 1 and printing opacity clipboard 2 removed expose chalk writing blackboard 4, can on chalk writing blackboard 4, adopt chalk to write, can continue teaching, can avoid influencing because of power failure in the prior art shortcoming of teaching.
The conductiving point 21 of present embodiment comprises left conductiving point 21a and right conductiving point 21b, and left conductiving point 21a and right conductiving point 21b are connected low level pin and the high level pin on the single-chip microcomputer 411 respectively, and the high level pin also is connected with diode 412.Remainder is identical with embodiment 1, does not give unnecessary details one by one at this.Adopt the structure of present embodiment, electronic writing pen 3 does not need to link to each other with conductiving point position-recognizing system 41, tightly plays an effect that is communicated with left conductiving point 21a and right conductiving point 21b, makes the manufacturing of electronic writing pen 3, use convenient.
Though the utility model is described by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (9)
1. electronic blackboard, the circuit board that comprises power supply and be electrically connected with described power supply (1) evenly is welded with LED lamp (11) parallel with one another on the described circuit board (1), it is characterized in that: also comprise:
Printing opacity clipboard (2), described printing opacity clipboard (2) is located at the top of described LED lamp (11), and in described printing opacity clipboard (2), be embedded with and described LED lamp (11) conductiving point (21) one to one, wherein, each conductiving point (21) all be positioned at its corresponding LED lamp (11) directly over;
Electronic writing pen (3), described electronic writing pen (3) is the column that head has conductive pen point (31), it is used to contact described conductiving point (21);
Control system (4), it comprises conductiving point position-recognizing system (41) and the information handling system (42) that is made of single-chip microcomputer (411); Low level pin on the single-chip microcomputer (411) of described conductiving point position-recognizing system (41) and high level pin and described conductiving point (21), described electronic writing pen (3) can form the loop, its be used for determining described electronic writing pen (3) contact conductiving point (21) the position and send position signalling to described information handling system (42); Described information handling system (42) is connected with described LED lamp (11) signal, and it is used to receive the position signalling that described conductiving point position-recognizing system (41) sends, and control and this position signalling corresponding LED lamp (11) are luminous or extinguish;
Function key group (5), it comprises writing function key (51) and erase feature key (52); Described writing function key (51) is connected with described information handling system (42) signal, it is used for writing signal to described information handling system (42) transmission, and described information handling system (42) writes signal controlling according to this and described position signalling corresponding LED lamp (11) is luminous; Described erase feature key (52) is connected with described information handling system (42) signal, it is used for sending erase signal to described information handling system (42), and described information handling system (42) is extinguished with described position signalling corresponding LED lamp (11) according to this erase signal control.
2. a kind of electronic blackboard according to claim 1, it is characterized in that: described conductiving point (21) is an integral piece, it connects the high level pin on the described single-chip microcomputer (411), described electronic writing pen (3) connects the low level pin on the described single-chip microcomputer (411), and described high level pin also is connected with diode (412).
3. a kind of electronic blackboard according to claim 1, it is characterized in that: described conductiving point (21) comprises left conductiving point (21a) and right conductiving point (21b), described left conductiving point (21a) and right conductiving point (21b) are connected low level pin and the high level pin on the described single-chip microcomputer (411) respectively, and described high level pin also is connected with diode (412).
4. according to claim 2 or 3 described a kind of electronic blackboards, it is characterized in that: described conductiving point (21) is divided at least two conductiving point unit, be respectively the first conductiving point unit, the second conductiving point unit, until n conductiving point unit, described conductiving point position-recognizing system (41) comprises the first kind single-chip microcomputer and the second class single-chip microcomputer; All described conductiving points (21) of the described first conductiving point unit are connected on the same pin of the described second class single-chip microcomputer, simultaneously, all described conductiving points (21) of the described first conductiving point unit are connected on the different pin of first kind single-chip microcomputer, all described conductiving points (21) of the described second conductiving point unit are connected on another pin of the described second class single-chip microcomputer, simultaneously, all described conductiving points (21) of the described second conductiving point unit are connected on the different pin of first kind single-chip microcomputer, and the rest may be inferred with the connected mode of described conductiving point position-recognizing system (41) for the described conductiving point (21) on remaining conductiving point unit.
5. a kind of electronic blackboard according to claim 4 is characterized in that: be separated with a conductiving point unit between being connected between same the conductiving point unit on the described second class single-chip microcomputer at least.
6. a kind of electronic blackboard according to claim 5, it is characterized in that: described function key group (5) also comprises selects look function key (53), the described look function key (53) of selecting is connected with described information handling system (42) signal, it is used for sending color signal to described information handling system (42), described information handling system (42) is sent the light of selected color according to this color signal control and described position signalling corresponding LED lamp (11), on the other side, described LED lamp (11) is the dual-colored LED lamp.
7. a kind of electronic blackboard according to claim 6 is characterized in that: described LED lamp (11) is arranged in cellular.
8. a kind of electronic blackboard according to claim 7 is characterized in that: the writing surface of described printing opacity clipboard (2) is a rough surface.
9. a kind of electronic blackboard according to claim 8 is characterized in that: the below of described circuit board (1) is provided with chalk writing blackboard (6), and described chalk writing blackboard (6) is slidingly connected mutually with described circuit board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201227712U CN201465078U (en) | 2009-06-18 | 2009-06-18 | electronic blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201227712U CN201465078U (en) | 2009-06-18 | 2009-06-18 | electronic blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465078U true CN201465078U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201227712U Expired - Fee Related CN201465078U (en) | 2009-06-18 | 2009-06-18 | electronic blackboard |
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| Country | Link |
|---|---|
| CN (1) | CN201465078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968698A (en) * | 2010-10-26 | 2011-02-09 | 深圳中电数码显示有限公司 | Electronic whiteboard all-in-one machine |
-
2009
- 2009-06-18 CN CN2009201227712U patent/CN201465078U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968698A (en) * | 2010-10-26 | 2011-02-09 | 深圳中电数码显示有限公司 | Electronic whiteboard all-in-one machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120618 |