CN202632267U - Interactive electromagnetic white board - Google Patents
Interactive electromagnetic white board Download PDFInfo
- Publication number
- CN202632267U CN202632267U CN 201220239882 CN201220239882U CN202632267U CN 202632267 U CN202632267 U CN 202632267U CN 201220239882 CN201220239882 CN 201220239882 CN 201220239882 U CN201220239882 U CN 201220239882U CN 202632267 U CN202632267 U CN 202632267U
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- China
- Prior art keywords
- electronic switch
- axle
- signal amplification
- controller
- channel electronic
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- Expired - Fee Related
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Abstract
The utility model provides an interactive electromagnetic white board, which comprises a controller, an A/D detection converter and a signal amplification processor, wherein the controller is connected with the A/D detection converter; the A/D detection converter is connected with the signal amplification processor; the signal amplification processor is respectively connected with an X-axis multi-way electronic switch and a Y-axis multi-way electronic switch; the X-axis multi-way electronic switch is connected with the X-axis copper wire in a coordinate copper wire mesh; the Y-axis multi-way electronic switch is connected with the Y-axis copper wire in the coordinate copper wire mesh; electromagnetic signals of the X-axis copper wire of a coordinate copper wire mesh and the Y-axis copper wire of a coordinate copper wire mesh are scanned and checked by the X-axis multi-way electronic switch and the Y-axis multi-way electronic switch respectively, and the electromagnetic signals are sent to the signal amplification processor; the electromagnetic signals are filtered by the signal amplification processor and are converted into digital signals by the A/D detection converter through an analog-digital conversion after amplifying process; and the digital signals are sent to the controller to be recognized and processed. The interactive electromagnetic white board has the advantages of simplicity in structure, high writing speed and high writing precision, and supports synchronous writing of users.
Description
Technical field
The utility model relates to the teaching aid technical field, and particularly a kind of interactive electromagnetism is answered blank.
Background technology
Electronic whiteboard becomes each universities, middle and primary schools' multi-media classroom necessary article.The favor that electronic whiteboard relies on its good interactivity and perfect numbers show extremely to educate the practitioner.It is heavy to remove the powder that teacher breathes chalk again from.The complex structure of the electronic whiteboard that provides in the prior art, production cost is high, it is complicated to manufacture, writing speed is unhappy, and it is high and can only support a person writing to write precision.
The utility model content
The utility model provides a kind of interactive electromagnetism to answer blank, and it is simple in structure, writing speed is fast, writes the precision height, supports that many people write synchronously.
To achieve these goals, the utility model provides following technical scheme:
A kind of interactive electromagnetism is answered blank; It comprises: coordinate copper mesh, X axle multi-channel electronic switch, Y axle multi-channel electronic switch, signal amplification processor, A/D detect converter and controller; Wherein: said controller connects said A/D and detects converter; Said A/D detects converter and connects said signal amplification processor; Said signal amplification processor connects X axle multi-channel electronic switch, Y axle multi-channel electronic switch respectively, and said X axle multi-channel electronic switch connects the X axle copper cash of said coordinate copper mesh, and said Y axle multi-channel electronic switch connects the Y axle copper cash of said coordinate copper mesh;
Said X axle multi-channel electronic switch, Y axle multi-channel electronic switch scan and detect the electromagnetic signal of Y axle copper cash of X axle copper cash and the coordinate copper mesh of said coordinate copper mesh respectively, and said electromagnetic signal is sent to said signal amplification processor;
Said signal amplification processor carries out after filtering, the processing and amplifying detecting converter through said A/D with said electromagnetic signal again and carries out analog to digital conversion and become digital signal, and said digital signal is sent to said controller and discerns and handle.
Preferably, said controller is DSP control system or single-chip microcomputer.
Preferably, also comprise: be arranged on the data-interface on the said controller.
Preferably, said data-interface is a USB interface.
Through implementing above technical scheme, have following technique effect: the interactive electromagnetism that the utility model provides is answered blank, and it is simple in structure, writing speed is fast, writes the precision height, supports that many people write synchronously.
Description of drawings
The interactive electromagnetism that Fig. 1 provides for the utility model is answered the structure principle chart of blank.
Embodiment
In order better to understand the technical scheme of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
The utility model embodiment provides a kind of interactive electromagnetism to answer blank; As shown in Figure 1; It comprises: coordinate copper mesh 106, X axle multi-channel electronic switch 108, coordinate copper mesh 106, Y axle multi-channel electronic switch 105, signal amplification processor 104, A/D detect converter 103 and controller 102; Wherein: said controller 102 connects said A/D and detects converter 103, and said A/D detects converter 103 and connects said signal amplification processor 104, and said signal amplification processor 104 connects said multi-channel electronic switch; Concrete, this signal amplification processor 104 connects X axle multi-channel electronic switch 108, Y axle multi-channel electronic switch 105 respectively.Said X axle multi-channel electronic switch 108 connects the X axle copper cash of said coordinate copper mesh 106, and said Y axle multi-channel electronic switch 105 connects the Y axle copper cash of said coordinate copper mesh 106;
Said X axle multi-channel electronic switch 108, Y axle multi-channel electronic switch 105 scan and detect the electromagnetic signal of Y axle copper cash of X axle copper cash and the coordinate copper mesh 106 of said coordinate copper mesh 106 respectively, and said electromagnetic signal is sent to said signal amplification processor 104; In the present embodiment, this X axle multi-channel electronic switch 108 is identical and corresponding with X axle numbers of copper lines in the coordinate copper mesh 106, and this Y axle multi-channel electronic switch 105 is identical and corresponding with Y axle numbers of copper lines in the coordinate copper mesh 106.Time writer is when this coordinate copper mesh 106 of contact; These coordinate copper mesh 106 corresponding positions can produce electromagnetic signal; This electromagnetic signal is the electromagnetic frequency signal, and this X axle multi-channel electronic switch 108, Y axle multi-channel electronic switch 105 constantly scan this coordinate copper mesh 106 respectively, after the electromagnetic signal in detecting this coordinate copper mesh 106; Confirm the coordinate position of this electromagnetic signal, and this electromagnetic signal is sent to signal amplification processor 104.Many people write simultaneously like needs, only change the electromagnetic frequency of writing time writer, can realize that many people write simultaneously.
Said signal amplification processor 104 carries out after filtering, the processing and amplifying detecting converter 103 through said A/D with said electromagnetic signal again and carries out analog to digital conversion and become digital signal, and said digital signal is sent to said controller 102 and discerns and handle.
In the above-described embodiments, preferably, said controller 102 is DSP control system or single-chip microcomputer.Wherein, said controller 102 is the DSP control system, can realize more accurate and stable control identification.
In the above-described embodiments, preferably, also comprise: be arranged on the USB interface on the said controller.Connect computer or other smart machines through this USB interface.In other embodiments, also can be other interface.
In addition, this interactive mode electromagnetism answers blank also to comprise backup system 107, and this backup system is a supply unit etc.
More than a kind of interactive electromagnetism that the utility model embodiment is provided answer blank to carry out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model embodiment; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (4)
1. an interactive electromagnetism is answered blank; It is characterized in that; Comprise: coordinate copper mesh, X axle multi-channel electronic switch, Y axle multi-channel electronic switch, signal amplification processor, A/D detect converter and controller; Wherein: said controller connects said A/D and detects converter, and said A/D detects converter and connects said signal amplification processor, and said signal amplification processor connects X axle multi-channel electronic switch, Y axle multi-channel electronic switch respectively; Said X axle multi-channel electronic switch connects the X axle copper cash of said coordinate copper mesh, and said Y axle multi-channel electronic switch connects the Y axle copper cash of said coordinate copper mesh;
Said X axle multi-channel electronic switch, Y axle multi-channel electronic switch scan and detect the electromagnetic signal of Y axle copper cash of X axle copper cash and the coordinate copper mesh of said coordinate copper mesh respectively, and said electromagnetic signal is sent to said signal amplification processor;
Said signal amplification processor carries out after filtering, the processing and amplifying detecting converter through said A/D with said electromagnetic signal again and carries out analog to digital conversion and become digital signal, and said digital signal is sent to said controller and discerns and handle.
2. interactive according to claim 1 electromagnetism is answered blank, it is characterized in that, said controller is DSP control system or single-chip microcomputer.
3. interactive according to claim 1 or claim 2 electromagnetism is answered blank, it is characterized in that, also comprises: be arranged on the data-interface on the said controller.
4. answer blank like the said interactive electromagnetism of claim 3, it is characterized in that, said data-interface is a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239882 CN202632267U (en) | 2012-05-25 | 2012-05-25 | Interactive electromagnetic white board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239882 CN202632267U (en) | 2012-05-25 | 2012-05-25 | Interactive electromagnetic white board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202632267U true CN202632267U (en) | 2012-12-26 |
Family
ID=47385440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220239882 Expired - Fee Related CN202632267U (en) | 2012-05-25 | 2012-05-25 | Interactive electromagnetic white board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202632267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425379A (en) * | 2012-05-25 | 2013-12-04 | 福建宝格丽电子科技有限公司 | Interactive electromagnetic whiteboard |
| CN106886348A (en) * | 2016-12-29 | 2017-06-23 | 上海清之泓教育科技有限公司 | Interactive electric whiteboard based on DSP digital processing units |
-
2012
- 2012-05-25 CN CN 201220239882 patent/CN202632267U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425379A (en) * | 2012-05-25 | 2013-12-04 | 福建宝格丽电子科技有限公司 | Interactive electromagnetic whiteboard |
| CN106886348A (en) * | 2016-12-29 | 2017-06-23 | 上海清之泓教育科技有限公司 | Interactive electric whiteboard based on DSP digital processing units |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121226 Termination date: 20150525 |
|
| EXPY | Termination of patent right or utility model |