CN204614257U - A kind of classroom voice teaching system device based on Bluetooth technology - Google Patents
A kind of classroom voice teaching system device based on Bluetooth technology Download PDFInfo
- Publication number
- CN204614257U CN204614257U CN201520347814.2U CN201520347814U CN204614257U CN 204614257 U CN204614257 U CN 204614257U CN 201520347814 U CN201520347814 U CN 201520347814U CN 204614257 U CN204614257 U CN 204614257U
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- CN
- China
- Prior art keywords
- bluetooth
- power amplifier
- adapter
- device based
- headset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of classroom voice teaching system device based on Bluetooth technology, comprise bluetooth module, PC, power amplifier, sound box system, it is characterized in that: voice signal is converted to electric signal by bluetooth module, and pass to PC, PC is by Electric signal processing and be converted to digital signal, then pass to power amplifier, power amplifier transfers to sound box system after digital signal being amplified and exports sound wave; Described bluetooth module comprises Bluetooth headset and Bluetooth adapter, and Bluetooth headset and Bluetooth adapter wireless connections, Bluetooth adapter is connected with PC by USB interface.The utility model can carry out upgrading on original multimedia equipment, newly purchase Bluetooth headset and Bluetooth adapter, improvement cost is cheap, easy to operate, take full advantage of existing equipment, simultaneously can to realize special messenger special for Bluetooth headset, for ensureing that the high quality lecture of various teaching mode provides technical guarantee.
Description
Technical field
The utility model relates to a kind of voice teaching system device, is specifically related to a kind of classroom voice teaching system device based on Bluetooth technology.
Background technology
All public course can be offered in institution of higher education and technical secondary school, due to curricula-variable student quantity more (being generally 80 ~ 200 people), the lecture theater that place generally selects energy galleryful more so give lessons, consequent subject matter is, the wave volume sent during teachers' instruction is limited, be sitting in front-seat classmate can hear, the classmate then arranged is difficult to catch, and will certainly affect teaching efficiency.Along with multimedia technology is introduced into classroom, microphone (being generally cable microphone) is equipped with below multimedia operations platform and blackboard, the mode of giving lessons has several below: (1) gives lessons by hand microphone, but constraint both hands cannot flexible operating mouse and keyboard, also limit the moving range of giving lessons, cannot writing on the blackboard be write; (2) giving lessons by fixing microphone, for checking operating platform screen display content, need bend over for a long time; (3) teacher shares a microphone, without keeping a public place clean and sterilizing; (4) when blackboard writing writing on the blackboard is explained, the microphone audio amplifying poor effect below it is positioned at.In order to make up above-mentioned (4) defect put; teacher can wear loudspeaker with oneself; but still have deficiency; its volume is limited; the sound that rear row can hear is still less, after tuning up volume, along with body rotations or movement often can be uttered long and high-pitched sounds; so loudspeaker is only suitable for the less classroom of number scale.
Summary of the invention
For the deficiency that above-mentioned prior art exists, problem to be solved in the utility model is to provide a kind of classroom voice teaching system device based on Bluetooth technology, by upgrading to former multimedia equipment, reaches the object of phonetic teaching.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of classroom voice teaching system device based on Bluetooth technology, comprise bluetooth module, PC, power amplifier, sound box system, it is characterized in that: voice signal is converted to electric signal by bluetooth module, and pass to PC, PC is by Electric signal processing and be converted to digital signal, then passes to power amplifier, power amplifier will digital signal amplify after transfer to sound box system and export sound wave; Described bluetooth module comprises Bluetooth headset and Bluetooth adapter, and Bluetooth headset and Bluetooth adapter wireless connections, Bluetooth adapter is connected with PC by USB interface.
The model of described Bluetooth adapter is water lumber yard BT559, this Bluetooth adapter compact, and installing is convenient, has the effective propagation path of 60m, can meet teaching needs.
The utility model can carry out upgrading on original multimedia equipment, newly purchase Bluetooth headset and Bluetooth adapter, improvement cost is cheap, easy to operate, take full advantage of existing equipment, simultaneously can to realize special messenger special for Bluetooth headset, for ensureing that the high quality lecture of various teaching mode provides technical guarantee.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is structural schematic block diagram of the present utility model;
Fig. 2 is the utility model practice schematic diagram;
In figure: Bluetooth headset 1, Bluetooth adapter 2, PC 3, power amplifier 4, sound box system 5.
Embodiment
As Fig. 1, shown in 2, a kind of classroom voice teaching system device based on Bluetooth technology, comprise bluetooth module, PC, power amplifier, sound box system, it is characterized in that: voice signal is converted to electric signal by bluetooth module, and pass to PC 3, PC 3 is by Electric signal processing and be converted to digital signal, then pass to power amplifier 4, power amplifier 4 transfers to sound box system 5 after digital signal being amplified and exports sound wave; Described bluetooth module comprises Bluetooth headset 1 and Bluetooth adapter 2, and Bluetooth headset 1 and Bluetooth adapter 2 wireless connections, Bluetooth adapter 2 is connected with PC 3 by USB interface.
The model of described Bluetooth adapter 2 is water lumber yard BT559, this Bluetooth adapter compact, and installing is convenient, has the effective propagation path of 60m, can meet teaching needs.
Adopt said structure, the utility model can carry out upgrading on original multimedia equipment, newly purchase Bluetooth headset 1 and Bluetooth adapter 2, improvement cost is cheap, easy to operate, take full advantage of existing equipment, simultaneously can to realize special messenger special for Bluetooth headset, for ensureing that the high quality lecture of various teaching mode provides technical guarantee.
Claims (2)
1. the classroom voice teaching system device based on Bluetooth technology, comprise bluetooth module, PC, power amplifier, sound box system, it is characterized in that: voice signal is converted to electric signal by bluetooth module, and pass to PC, PC is by Electric signal processing and be converted to digital signal, then pass to power amplifier, power amplifier transfers to sound box system after digital signal being amplified and exports sound wave;
Described bluetooth module comprises Bluetooth headset (1) and Bluetooth adapter (2), and Bluetooth headset (1) and Bluetooth adapter (2) wireless connections, Bluetooth adapter (2) is connected with PC by USB interface.
2. a kind of classroom voice teaching system device based on Bluetooth technology according to claim 1, is characterized in that: the model of described Bluetooth adapter (2) is water lumber yard BT559.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347814.2U CN204614257U (en) | 2015-05-27 | 2015-05-27 | A kind of classroom voice teaching system device based on Bluetooth technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347814.2U CN204614257U (en) | 2015-05-27 | 2015-05-27 | A kind of classroom voice teaching system device based on Bluetooth technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204614257U true CN204614257U (en) | 2015-09-02 |
Family
ID=53966792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520347814.2U Expired - Fee Related CN204614257U (en) | 2015-05-27 | 2015-05-27 | A kind of classroom voice teaching system device based on Bluetooth technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204614257U (en) |
-
2015
- 2015-05-27 CN CN201520347814.2U patent/CN204614257U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160527 |