CN202713560U - Bluetooth microphone for teaching - Google Patents
Bluetooth microphone for teaching Download PDFInfo
- Publication number
- CN202713560U CN202713560U CN 201220376143 CN201220376143U CN202713560U CN 202713560 U CN202713560 U CN 202713560U CN 201220376143 CN201220376143 CN 201220376143 CN 201220376143 U CN201220376143 U CN 201220376143U CN 202713560 U CN202713560 U CN 202713560U
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- bluetooth
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- teaching
- microphone
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Abstract
The utility model discloses a Bluetooth microphone for teaching. The Bluetooth microphone for teaching comprises a transmitter and a receiver which cooperates with the transmitter. The transmitter comprises a first control module, and a first power supply module, a first audio frequency processing module, and a Bluetooth transmitting module which are respectively connected with the first control module. The receiver comprises a second control module, and a second power supply module, a second audio frequency processing module, and a Bluetooth receiving module which are respectively connected with the second control module. The working frequencies of the Bluetooth transmitting module and the Bluetooth receiving module which are wirelessly communicated are 2.4 GHz. According to the utility model, the working frequency of 2.4 GHz is used, the no adjacent channel interference is realized, and the Bluetooth microphones for teaching can be used in all classrooms in a large area at the same time; an encryption transmission technology is used, so the Bluetooth microphone for teaching has the advantages of strong anti-interference performance and good versatility, thoroughly avoids the frequency jumping of the traditional analog wireless microphone, and meets the requirement of dense use of a school during teaching; the transmitter has a small and general housing, and has strong portability; and the Bluetooth microphone for teaching has multiple functions and can serve multiple purposes, and greatly facilitates the teaching work.
Description
Technical field
The utility model relates to a kind of microphone, relates in particular to a kind of teaching Bluetooth microphone.
Background technology
The main flow wireless microphone product that uses at classroom teaching at present is main mainly with VHF FM, UHF PLL frequency modulation analog signal transmission mode greatly, and the defective that existing wireless microphone exists has:
Anti-interference: traditional V/U frequency range since mate between wireless microphone and the receiver communicate by letter the frequency Limited Number and the radio wave penetrability is good, be easy to occur the phenomenon that signal is harassed mutually between the neighbouring device.Adjacent classroom or up and down the audio amplifier between the classroom of floor very likely spread out of the sound in other classrooms.Propagate because the conventional wireless microphone is analog signal, easily be subject to producing noise with the interference of other radio waves of frequency range.
Versatility: because transmitter is corresponding one by one with the receiver frequency, so microphone will match management specially in school, tries one's best during use the microphone of different channel is issued the use of adjacent classroom, each other can not be general so respectively overlap microphone.Even the microphone for adjustable frequency also will be adjusted to channel on the no channel of other microphones before use.
Electromagenetic wave radiation: the portioned product radio transmitted power will be considered to be in for a long time than the impact healthy on the teacher arranged in the strong electromagnetic radiation environment more than 30 milliwatts.
Environmental issue: wireless microphone adopts the dry cell power supply mode mostly, because power consumption more not only needs to change frequently battery, and the battery after discarded can produce destruction to biological environment.
How many problems of above-mentioned existence has affected education sector is further popularized the enthusiasm of using wireless microphone, and the wireless microphone that therefore uses in the teaching is different from an employed product such as meeting, amusement, has the particularity of education sector:
1, environmental protection: microphone has substantially exceeded the wireless devices commonly used such as mobile phone as teacher's the lasting time of using of daily teaching equipment, is guaranteeing that product uses under the prerequisite of function, adopts low power transmissions to avoid the impact of Electromagnetic Wave Radiation on Human health.The chargeable lithium cell that employing can be recycled reduces disposable dry cell and uses rear environmental disruption.
2, satisfy the intensive that unit space uses: consider the intensive of unit space use microphone in school, require in a teaching building, will guarantee not harass mutually between all classrooms.Good in anti-interference performance guarantees to transmit clearly voice quality.Stop the traditional analog wireless microphone and alter the frequently generation of phenomenon.
3, Small Universal: need not the frequency pairing, save special messenger's keeping.The requirement microphone can both be general in each classroom.Hand microphone or waist-mounted type microphone volume are larger, so require microphone to accomplish miniaturization as far as possible, long-term use has not thought the sense of bearing a heavy burden yet.Everyone microphone, so-called " teacher one wheat " not only can carry but also clean hygiene.
4, multifunction: teacher is hand-held chalk and blackboard eraser no longer only, but is equipped with computer, seehears and various information technoloy equipment.The integrated of handheld device function also have the handheld devices such as laser pen, computer-projector instrument remote controller except wireless microphone, so will make things convenient for teaching greatly.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of teaching Bluetooth microphone is provided.
For achieving the above object, described teaching Bluetooth microphone, comprise reflector and receiver with matching, described reflector comprises the first control module and the first supply module, the first audio processing modules and the Bluetooth transmission module that all are connected with described the first control module communication, described receiver comprises the second control module and the second supply module, the second audio processing modules and the bluetooth receiver module that all are connected with described the second control module communication, and wireless telecommunications are connected described Bluetooth transmission module with the bluetooth receiver module; Be characterized in, the operating frequency of described Bluetooth transmission module and bluetooth receiver module is at 2.4GHz.
Preferably, described Bluetooth transmission module is low-power Bluetooth transmission module; Described bluetooth receiver module is low-power bluetooth receiver module.
Preferably, described reflector also comprises the encrypting module that is connected with the first control module communication; Described receiver also comprises the deciphering module that matches with encrypting module, and described deciphering module is connected with the second control module communication.
Preferably, described the first power supply unit charging circuit of comprising lithium battery and being used for lithium battery is charged.
Preferably, described receiver is connected by the first frequency wireless telecommunications with a reflector, and described receiver is connected with another reflector wireless telecommunications by second frequency.
Preferably, the housing of described reflector is tie clip shape, lip pencil or drops.
Preferably, be provided with power supply indicator, laser emission port, charging inlet, external microphone jack and function button at the housing of described reflector, described function button comprises turnover key, lower turnover key harmony tone joint button.
Preferably, described charging inlet is the Mini-USB charging inlet.
The beneficial effects of the utility model are, described teaching is adopted the 2.4GHz operating frequency with Bluetooth microphone, can realize frequently disturbing without adjacent, but use simultaneously in all classrooms of large tracts of land; Adopt the encrypted transmission technology, have advantages of that strong interference immunity, versatility are good, every complete equipment has unique ID code, nearly 1,000,000 groups of ID codings, thoroughly stop the traditional analog wireless microphone and alter the frequently generation of phenomenon, satisfied the requirement of school instruction use intensive; Reflector housing general compact is portable strong.Low-power transmission makes the flying power of battery stronger in conjunction with chargeable lithium cell; The USB charging is with filling with usefulness; The design of function button on the reflector housing makes things convenient for teaching greatly, and is multi-functional and relevance measure is high, simplified the multimedia teaching handheld device, a tractor serves several purposes.
Description of drawings
Fig. 1 shows the functional-block diagram that Bluetooth microphone is used in teaching described in the utility model.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments:
Fig. 1 shows the functional-block diagram that Bluetooth microphone is used in teaching described in the utility model, as shown in Figure 1, described teaching Bluetooth microphone, comprise reflector and receiver with matching, described reflector comprises the first control module 11, and the first supply module 12 that all is connected with 11 communications of described the first control module, the first audio processing modules 13 and Bluetooth transmission module, described receiver comprises the second control module 21, and the second supply module 22 that all is connected with 21 communications of described the second control module, wireless telecommunications are connected with the bluetooth receiver module for the second audio processing modules 23 and bluetooth receiver module, described Bluetooth transmission module; The operating frequency of described Bluetooth transmission module and bluetooth receiver module is at 2.4GHz.Microphone is operated in bluetooth 2.4GHz(ISM) on the radio band, the total digitalization of modulating/demodulating process.
Further, described reflector also comprises the encrypting module 14 that is connected with 11 communications of the first control module; Described receiver also comprises the deciphering module 24 that matches with encrypting module 14, and described deciphering module 24 is connected with 21 communications of the second control module.Adopt the encrypted transmission technology, have advantages of that strong interference immunity, versatility are good, every complete equipment has unique ID code, and nearly 1,000,000 groups of ID codings are thoroughly stopped the traditional analog wireless microphone and altered the frequently generation of phenomenon.
2.4GHz the requirement of school instruction use intensive has been satisfied in the setting of the selection of operating frequency and encrypting module 14 and deciphering module 24.
Described Bluetooth transmission module is low-power Bluetooth transmission module 15; Described bluetooth receiver module is low-power bluetooth receiver module 25, adopts low power transmissions (1 milliwatt), is 1/10 of international standard, is 1/90 of regular handset.Just so that radio signal covers whole classroom scope, avoid being in for a long time than in the strong electromagnetic wave radiation environment on the impact of health.And, the charging circuit that described the first power supply unit comprises lithium battery and is used for lithium battery is charged, the chargeable lithium cell that employing can be recycled reduces disposable dry cell and uses rear environmental disruption, is genuine " the wireless miaow of environmental protection ".
The characteristics of low-power transmission and the application of chargeable lithium cell, make described teaching have the characteristics of environmental protection with Bluetooth microphone, and, adopt the loss of greatly having saved electric energy after the 2.4G low power transmissions technology, clip-on microphone is full of once that stream time can reach more than 10 hours behind the electricity, the pen type microphone once be full of electricity after stream time can reach more than 15 hours.Simultaneously the built-in lithium battery administration module of configuration have that low-voltage is reported to the police, charging indication and charging finish after the function such as automatic shutdown, be the practical product of tool in the like product.
Be convenient teaching, described teaching can be made tie clip shape, lip pencil or drops with the housing of the reflector of Bluetooth microphone, and the microphone of tie clip profile contains rechargeable battery and only has 20g heavy, is the product that like product kind volume is minimum in the market, weight is the lightest.The user without any dress code, long-time is used the sense of also bearing a heavy burden, not only be convenient for carrying but also clean hygiene.The pen type microphone contains rechargeable battery and only has 35g heavy, the penholder pipe shaft that adopts the fine copper metal to make, high-grade pearl chromium body surface treatment.Have beyond the beautiful outward appearance of fashion, produce the touch noise that rubs when effectively having reduced the hand held wireless microphone because of use and between the palm.Microphone switch has searches frequently function automatically, pressing the microphone switch key operates frequently start mutually with interior just achievable for 2 seconds, and the operation that need not other complexity just can normally be used, and makes microphone have the characteristics of Small Universal, can really accomplish " miaow is gone over all classrooms ".
In field research, can often use PPT, therefore be necessary at the housing of reflector the corresponding function setting to be set, particularly, housing at described reflector is provided with power supply indicator, laser emission port, charging inlet, external microphone jack and function button, and described charging inlet is preferably the Mini-USB charging inlet.Described function button comprises turnover key, lower turnover key harmony tone joint button.Teacher is hand-held chalk and blackboard eraser no longer only, but is equipped with various information technoloy equipments such as computer, projecting apparatus.With traditional laser designation, remote-control computer PPT up and down the function such as page turning incorporate into microphone and be integrated, three-in-one wireless computer microphone is released in the research and development that take the lead in the whole nation.The integrated of handheld device function will make things convenient for teaching greatly, and be multi-functional and relevance measure is high, simplify the multimedia teaching handheld device, a tractor serves several purposes.
In addition, described teaching can also be designed to the form of one drag two with Bluetooth microphone, namely a receiver is by corresponding two transmitters of double frequency, described receiver is connected by the first frequency wireless telecommunications with a reflector, described receiver is connected with another reflector wireless telecommunications by second frequency, can satisfy simultaneously the use of two reflectors.
Certainly, described teaching can also be expanded into multipurpose with Bluetooth microphone and use: provide PCBA level wireless receiver as the Specialty Hi-Fi manufacturer, be built in the sound equipment power amplifying device, form new Wireless amplification equipment; For the user can provide portable small-sized USB wireless receiver, access computer or satisfy the demand of multimedia teaching with the multimedia liquid crystal television of microphone function.
Being the utility model preferred embodiment only in sum, is not to limit practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.
Claims (8)
1. teaching Bluetooth microphone, comprise reflector and receiver with matching, described reflector comprises the first control module and the first supply module, the first audio processing modules and the Bluetooth transmission module that all are connected with described the first control module communication, described receiver comprises the second control module and the second supply module, the second audio processing modules and the bluetooth receiver module that all are connected with described the second control module communication, and wireless telecommunications are connected described Bluetooth transmission module with the bluetooth receiver module; It is characterized in that: the operating frequency of described Bluetooth transmission module and bluetooth receiver module is at 2.4GHz.
2. teaching Bluetooth microphone according to claim 1, it is characterized in that: described Bluetooth transmission module is low-power Bluetooth transmission module; Described bluetooth receiver module is low-power bluetooth receiver module.
3. teaching Bluetooth microphone according to claim 2, it is characterized in that: described reflector also comprises the encrypting module that is connected with the first control module communication; Described receiver also comprises the deciphering module that matches with encrypting module, and described deciphering module is connected with the second control module communication.
4. teaching Bluetooth microphone according to claim 2 is characterized in that: the charging circuit that described the first power supply unit comprises lithium battery and is used for lithium battery is charged.
5. teaching Bluetooth microphone according to claim 2, it is characterized in that: described receiver is connected by the first frequency wireless telecommunications with a reflector, and described receiver is connected with another reflector wireless telecommunications by second frequency.
6. the described teaching Bluetooth microphone of any one in 5 according to claim 1, it is characterized in that: the housing of described reflector is tie clip shape, lip pencil or drops.
7. the described teaching Bluetooth microphone of any one in 5 according to claim 1, it is characterized in that: the housing at described reflector is provided with power supply indicator, laser emission port, charging inlet, external microphone jack and function button, and described function button comprises turnover key, lower turnover key harmony tone joint button.
8. teaching Bluetooth microphone according to claim 7, it is characterized in that: described charging inlet is the Mini-USB charging inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220376143 CN202713560U (en) | 2012-07-31 | 2012-07-31 | Bluetooth microphone for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220376143 CN202713560U (en) | 2012-07-31 | 2012-07-31 | Bluetooth microphone for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713560U true CN202713560U (en) | 2013-01-30 |
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ID=47593812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220376143 Expired - Fee Related CN202713560U (en) | 2012-07-31 | 2012-07-31 | Bluetooth microphone for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202713560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761798A (en) * | 2012-07-31 | 2012-10-31 | 常保珠 | Teaching Bluetooth microphone |
-
2012
- 2012-07-31 CN CN 201220376143 patent/CN202713560U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761798A (en) * | 2012-07-31 | 2012-10-31 | 常保珠 | Teaching Bluetooth microphone |
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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: 20130130 Termination date: 20180731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |