CN204498374U - A kind of blue teeth wireless public address set for teaching - Google Patents
A kind of blue teeth wireless public address set for teaching Download PDFInfo
- Publication number
- CN204498374U CN204498374U CN201520233593.6U CN201520233593U CN204498374U CN 204498374 U CN204498374 U CN 204498374U CN 201520233593 U CN201520233593 U CN 201520233593U CN 204498374 U CN204498374 U CN 204498374U
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- display unit
- bluetooth chip
- public address
- teaching
- address set
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Abstract
The utility model discloses a kind of blue teeth wireless public address set for teaching, comprise transmitter, receiver, for showing the display unit of described transmitter operating state, described display unit is connected by circuit with described transmitter; Described transmitter comprise battery, for gather sound miaow head, the voice signal of miaow head collection carried out to coded modulation and the first Bluetooth chip launched; Described receiver comprises matching with described first Bluetooth chip and is connected, receives signal the second Bluetooth chip of demodulation that the first Bluetooth chip launches and the audio output device be connected with the second Bluetooth chip.Blue teeth wireless public address set for teaching disclosed in the utility model, its integrated level is high, volume is little, lightweight, is convenient for carrying, has good interference free performance, achieve visual man-machine interaction simultaneously.
Description
Technical field
The utility model relates to public address equipment technical field, is specifically related to a kind of blue teeth wireless public address set for teaching.
Background technology
Classroom public address system is as one of important tool in school eduaction, be widely applied in education and instruction, teacher's voice collecting is the key of teaching public address, in former tutoring system construction scheme, good, anti-interference, the easy use of tonequality, manageability, low-material-consumption etc. have become the factor of several mutual exclusion, and traditional teaching public address system is: teacher carries on the back the transmitter of a band miaow head, is closely placing the receiver of a little audio amplifier class, ubiquity volume is large, the defect of poor anti jamming capability; If adopt professional public address equipment, then can bring the problem of performance index surplus; In addition, teaching public address equipment of the prior art lacks man-machine interaction characteristic.
Summary of the invention
For above-mentioned defect, the utility model discloses a kind of blue teeth wireless public address set for teaching, its integrated level is high, volume is little, lightweight, be convenient for carrying, there is good interference free performance, achieve visual man-machine interaction simultaneously.
The technical solution of the utility model is as follows:
A kind of blue teeth wireless public address set for teaching, comprises transmitter, receiver, for showing the display unit of described transmitter operating state, described display unit is connected by circuit with described transmitter; Described transmitter comprise battery, for gather sound miaow head, the voice signal of miaow head collection carried out to coded modulation and the first Bluetooth chip launched; Described receiver comprises matching with described first Bluetooth chip and is connected, receives signal the second Bluetooth chip of demodulation that the first Bluetooth chip launches and the audio output device be connected with the second Bluetooth chip.
As preferably, described display unit comprises electricity display unit, volume display unit.
Preferably, described battery is rechargeable battery, and described transmitter is provided with the charging inlet be connected with described battery; The charged state display unit corresponding with battery is provided with in described display unit.
Preferably, described display unit is an OLED display screen.
In blue teeth wireless public address set for teaching disclosed in the utility model, transmitter is gathered voice by miaow head, send into the first Bluetooth chip and carry out Base-Band Processing, then coded modulation is carried out, launched by 2.4G, be connected to the second Bluetooth chip in receiver by blue teeth wireless, receiver carries out demodulation after receiving aerial signal, by audio output device reduction voice amplify output; In whole blue teeth wireless public address set for teaching, adopt the Bluetooth chip of RF and base band integrated design, reduce the structural volume of product, improve tonequality, and low in energy consumption, can long time continuous working; The frequency hopping of the pairing communication employing of bluetooth can be good at the interference of anti-same frequency, has good interference free performance; Achieve visual man-machine interaction by display unit simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation in one embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
As shown in Figure 1, blue teeth wireless public address set for teaching disclosed in the utility model, comprises transmitter 10, receiver 11, for showing the display unit of described transmitter 10 operating state, described display unit is connected by circuit with described transmitter 10; Described transmitter 10 comprise battery 5, for gather sound miaow head 8, to miaow head 8 gather voice signal carry out coded modulation and launch the first Bluetooth chip 6; Described receiver 11 comprises matching with described first Bluetooth chip 6 and is connected, receives signal the second Bluetooth chip 7 of demodulation that the first Bluetooth chip 6 launches and the audio output device 9 be connected with the second Bluetooth chip 7;
In blue teeth wireless public address set for teaching disclosed in the utility model, transmitter 10 is gathered by miaow head 8 pairs of voice, send into the first Bluetooth chip and carry out Base-Band Processing, then coded modulation is carried out, launched by 2.4G, be connected to the second Bluetooth chip in receiver by blue teeth wireless, receiver carries out demodulation after receiving aerial signal, reduces voice amplify output by audio output device 9; In whole blue teeth wireless public address set for teaching, adopt the Bluetooth chip of RF and base band integrated design, reduce the structural volume of product, improve tonequality, and low in energy consumption, can long time continuous working; The frequency hopping of the pairing communication employing of bluetooth can be good at the interference of anti-same frequency, radio frequency 2.4G product of the prior art, voice sound amplification function can be realized, but radio frequency 2.4G is different from Bluetooth technology, due to the restriction of technical protocol itself, radio frequency 2.4G product is relatively poor on interference free performance, be easy to by co-channel (adjective) WIFI and bluetooth interference, even radio frequency 2.4G itself also easily forms crosstalk each other, bluetooth just can well overcome above problem, has good interference free performance; Achieve visual man-machine interaction by display unit simultaneously.
As a preferred implementation, described battery 5 is rechargeable battery, and described transmitter 10 is provided with the charging inlet 4 be connected with described battery 5; Described display unit is an OLED display screen; Electricity display unit 1, volume display unit 2, charged state display unit 3 is provided with in described display unit, in an embodiment, blue teeth wireless public address set for teaching have employed economic and practical OLED, the using state of this public address system is well presented by OLED display screen, better mutual to user, make user (teacher) very clearly know whether bluetooth connects; Know the electricity consumption situation of transmitter 10, electricity also has how many, very clear; Regulate the volume plus-minus of transmitter 10, the volume of whole public address system can be known by OLED clearly.When charging, whether OLED display screen is good state of showing bluetooth oneself to user also: be start charging, charge under the state of still not starting shooting, this OLED display screen, in the utilization of blue teeth wireless teaching public address system, improves the Man machine interaction of product greatly.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (4)
1. a blue teeth wireless public address set for teaching, is characterized in that: comprise transmitter, receiver, for showing the display unit of described transmitter operating state, described display unit is connected by circuit with described transmitter; Described transmitter comprise battery, for gather sound miaow head, the voice signal of miaow head collection carried out to coded modulation and the first Bluetooth chip launched; Described receiver comprises matching with described first Bluetooth chip and is connected, receives signal the second Bluetooth chip of demodulation that the first Bluetooth chip launches and the audio output device be connected with the second Bluetooth chip.
2. blue teeth wireless public address set for teaching as claimed in claim 1, is characterized in that: described display unit comprises electricity display unit, volume display unit.
3. blue teeth wireless public address set for teaching as claimed in claim 1, it is characterized in that: described battery is rechargeable battery, described transmitter is provided with the charging inlet be connected with described battery; The charged state display unit corresponding with battery is provided with in described display unit.
4. the blue teeth wireless public address set for teaching according to any one of claim 1,2 or 3, is characterized in that: described display unit is an OLED display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233593.6U CN204498374U (en) | 2015-04-17 | 2015-04-17 | A kind of blue teeth wireless public address set for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233593.6U CN204498374U (en) | 2015-04-17 | 2015-04-17 | A kind of blue teeth wireless public address set for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204498374U true CN204498374U (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520233593.6U Expired - Fee Related CN204498374U (en) | 2015-04-17 | 2015-04-17 | A kind of blue teeth wireless public address set for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204498374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471609A (en) * | 2018-11-27 | 2019-03-15 | 深圳市橙子电子有限公司 | K sings projection integration machine and its karaoke method |
-
2015
- 2015-04-17 CN CN201520233593.6U patent/CN204498374U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471609A (en) * | 2018-11-27 | 2019-03-15 | 深圳市橙子电子有限公司 | K sings projection integration machine and its karaoke method |
| CN109471609B (en) * | 2018-11-27 | 2023-11-03 | 深圳市橙子数字科技有限公司 | Karaoke projection integrated machine and Karaoke method thereof |
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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: 20150722 Termination date: 20160417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |