CN203301740U - Microphone based on 2.4Hz wireless radio frequency technology - Google Patents
Microphone based on 2.4Hz wireless radio frequency technology Download PDFInfo
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- CN203301740U CN203301740U CN2013203803807U CN201320380380U CN203301740U CN 203301740 U CN203301740 U CN 203301740U CN 2013203803807 U CN2013203803807 U CN 2013203803807U CN 201320380380 U CN201320380380 U CN 201320380380U CN 203301740 U CN203301740 U CN 203301740U
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- microphone
- audio
- wireless radio
- wireless
- radio frequency
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- 238000005516 engineering process Methods 0.000 title abstract description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 241000256848 Apis florea Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a microphone based on 2.4Hz wireless radio frequency technology. The microphone based on the 2.4Hz wireless radio frequency technology includes a microphone terminal and a receiving terminal. The microphone terminal includes a power supply unit, a pickup sensor, an audio processing and amplifying circuit, a single-chip microprocessor and a 2.4Hz wireless radio frequency transmitting module. The pickup sensor is connected with the audio processing and amplifying circuit. The audio processing and amplifying circuit is in input connection with the single-chip microprocessor. The single-chip microprocessor is in control connection with the 2.4Hz wireless radio frequency transmitting module. The receiving terminal includes a 2.4Hz wireless receiving module, an audio processing unit and a USB interface. The 2.4Hz wireless receiving module is in fitted connection with the 2.4Hz wireless radio frequency transmitting module. The audio processing unit includes an audio demodulator and an audio codec. Microphone sound signals received by the 2.4Hz wireless receiving module are demodulated, coded and decoded through the audio processing unit and are then output from the USB interface. The microphone based on the 2.4Hz wireless radio frequency technology has advantages of being conveniently to carry; being capable of providing clear amplified sound; and the like.
Description
Technical field
The utility model belongs to the application of electronic technology field, specifically refers to a kind of microphone based on the 2.4GHz wireless radio-frequency.
Background technology
Present mainly three kinds of desk-top wired commonly used, wireless frequency modulation formula and ear-wearing types of teachers ' teaching, computer multi-media demonstration microphone commonly used, teachers ' teaching is the third microphone commonly used mainly, be commonly called as " apis florea ", also exist many shortcomings, as must be carrying with it loudspeaker hangs over, operation and carry very inconveniently, not only sound effect is bad, and often needs charging.On the other hand, existing classroom all is furnished with multimedia computer and power amplifier sound equipment mostly.
Summary of the invention
The purpose of this utility model is the shortcoming and defect that exists in order to overcome prior art, and provide a kind of energy to utilize multimedia computer and the power amplifier sound equipment in existing classroom, realize the clear amplification of teachers ' teaching sound, the microphone based on the 2.4GHz wireless radio-frequency of the advantage such as easy to carry, energy-conservation and clear sound is loud and clear.
For achieving the above object, the technical solution of the utility model is to include microphone terminal and receiving terminal,
Described microphone terminal includes power supply unit, sound pickup sensor, audio frequency processing and amplifying circuit, single-chip microcomputer, 2.4GHz less radio-frequency transmitter module, described sound pickup sensor is processed and is connected with amplifying circuit with audio frequency, this audio frequency processing is connected with the single-chip microcomputer input with amplifying circuit, single-chip microcomputer and 2.4GHz less radio-frequency transmitter module control connection;
The power supply unit of described cylinder terminal includes solar panel, inverter, charging circuit and the chargeable lithium cell that connects successively.
Described receiving terminal includes 2.4GHz wireless receiving module, audio treatment unit and USB interface, described 2.4GHz wireless receiving module coordinates docking with 2.4GHz less radio-frequency transmitter module, described audio treatment unit includes audio demodulator and audio codec, 2.4GHz the microphone voice signal that wireless receiving module receives is in harmonious proportion by the audio treatment unit solution after encoding and decoding, from USB interface, exports.
By this setting, utilize the 2.4GHz wireless radio-frequency with teacher's sound from the microphone terminal transmission to receiving terminal, and utilize the USB interface of this receiving terminal to be connected with the multimedia computer in classroom, and then utilize the existing computer in classroom and power amplifier sound equipment to carry out the clear amplification of classroom sound, but also has advantages of good portability.In addition, solar panel, inverter, charging circuit and chargeable lithium cell are set, in use, can utilize in real time solar energy to charge to chargeable lithium cell, ensured electric power continuation of the journey of the present utility model, service time be long.
Further arranging is that described microphone terminal also includes the laser head that is connected with the power supply unit phase control., by this setting, make the utility model also have the laser function, on-the-spot indication during convenient teaching.
Further setting is that the single-chip microcomputer of described microphone terminal is that model is the embedded scm of S3C44B0X.
In sum, the utility model adopts 2.4Hz RF radio-frequency technique, in conjunction with USB and digital recording, coding and digital audio play-back technology, the power amplifier in application PC and classroom is realized the clear amplification to teachers ' teaching sound, the characteristics of have, easy to carry, energy-conservation and clear sound is loud and clear.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Description of drawings
Fig. 1 the utility model embodiment microphone terminal theory diagram;
Fig. 2 the utlity model has execution mode receiving terminal theory diagram.
Embodiment
Below by embodiment, the utility model is specifically described, only is used for the utility model is further described, can not be interpreted as the restriction to the utility model protection range.
Embodiment of the present utility model as shown in Figure 1-2, include microphone terminal and receiving terminal,
Described microphone terminal includes power supply unit, sound pickup sensor 2, audio frequency processing and amplifying circuit 3, single-chip microcomputer 4,2.4GHz less radio-frequency transmitter module 5, described sound pickup sensor 2 is processed and is connected with amplifying circuit 3 with audio frequency, this audio frequency is processed to be connected with amplifying circuit and is connected with single-chip microcomputer 4 inputs, single-chip microcomputer 4 and 2.4GHz less radio-frequency transmitter module 5 control connections; The described single-chip microcomputer of the present embodiment adopts the S3C44B0X of Samsung (Samsung) company, and it has adopted the ARM7TDMI kernel, is embedded scm; This function of the MCU favorable expandability, and power consumption is little.The power supply unit of the described microphone terminal of the present embodiment includes solar panel 11, inverter 12, charging circuit 13 and the chargeable lithium cell 14 that connects successively, helps to improve electric power flying power of the present utility model;
in addition, the described receiving terminal of the present embodiment includes 2.4GHz wireless receiving module 6, audio treatment unit 7 and USB interface 8, described 2.4GHz wireless receiving module 6 coordinates docking with 2.4GHz less radio-frequency transmitter module 5, described audio treatment unit 7 includes audio demodulator 71 and audio codec 72, 2.4GHz the microphone voice signal that wireless receiving module 6 receives is in harmonious proportion by the audio treatment unit solution after encoding and decoding, output to the multimedia computer in classroom from USB interface 8, and then offer the power amplifier sound equipment in classroom, sound to classroom carries out clear amplification.
In addition, the described microphone terminal of the present embodiment also includes the laser head 9 that is connected with the power supply unit phase control, during convenient teaching, and the use of laser designation.When actual design, this microphone terminal need to arrange corresponding housing, and this laser head 9 is installed on housing, and corresponding control button is set laser head 9 is operated control.
Claims (3)
1. microphone based on the 2.4GHz wireless radio-frequency is characterized in that: include microphone terminal and receiving terminal,
Described microphone terminal includes power supply unit, sound pickup sensor, audio frequency processing and amplifying circuit, single-chip microcomputer and 2.4GHz less radio-frequency transmitter module, described sound pickup sensor is processed and is connected with amplifying circuit with audio frequency, this audio frequency processing is connected with the single-chip microcomputer input with amplifying circuit, single-chip microcomputer and 2.4GHz less radio-frequency transmitter module control connection;
The power supply unit of described microphone terminal includes solar panel, inverter, charging circuit and the chargeable lithium cell that connects successively;
Described receiving terminal includes 2.4GHz wireless receiving module, audio treatment unit and USB interface, described 2.4GHz wireless receiving module coordinates docking with 2.4GHz less radio-frequency transmitter module, described audio treatment unit includes audio demodulator and audio codec, 2.4GHz the microphone voice signal that wireless receiving module receives is in harmonious proportion by the audio treatment unit solution after encoding and decoding, from USB interface, exports.
2. a kind of microphone based on the 2.4GHz wireless radio-frequency according to claim 1, it is characterized in that: described microphone terminal also includes the laser head that is connected with the power supply unit phase control.
3. a kind of microphone based on the 2.4GHz wireless radio-frequency according to claim 1, it is characterized in that: the single-chip microcomputer of described microphone terminal is that model is the embedded scm of S3C44B0X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203803807U CN203301740U (en) | 2013-06-27 | 2013-06-27 | Microphone based on 2.4Hz wireless radio frequency technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203803807U CN203301740U (en) | 2013-06-27 | 2013-06-27 | Microphone based on 2.4Hz wireless radio frequency technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301740U true CN203301740U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203803807U Expired - Fee Related CN203301740U (en) | 2013-06-27 | 2013-06-27 | Microphone based on 2.4Hz wireless radio frequency technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883633A (en) * | 2015-06-09 | 2015-09-02 | 陈芳芳 | Intelligent microphone and voice identification method |
-
2013
- 2013-06-27 CN CN2013203803807U patent/CN203301740U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104883633A (en) * | 2015-06-09 | 2015-09-02 | 陈芳芳 | Intelligent microphone and voice identification method |
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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: 20131120 Termination date: 20190627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |