CN205017587U - Solar energy wireless megaphone - Google Patents
Solar energy wireless megaphone Download PDFInfo
- Publication number
- CN205017587U CN205017587U CN201520851981.0U CN201520851981U CN205017587U CN 205017587 U CN205017587 U CN 205017587U CN 201520851981 U CN201520851981 U CN 201520851981U CN 205017587 U CN205017587 U CN 205017587U
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- Prior art keywords
- module
- solar energy
- bluetooth
- energy radio
- transmitting terminal
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- Expired - Fee Related
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- Circuit For Audible Band Transducer (AREA)
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Abstract
The utility model provides a solar energy wireless megaphone, includes power module, pronunciation emission unit and speech perception unit, power module comprises battery and solar panel, pronunciation emission unit includes transmitting terminal host system and the voice input module and the bluetooth emission module that are connected respectively with transmitting terminal host system, the speech perception unit includes voice output module and bluetooth receiving module, bluetooth receiving module and bluetooth emission module phase -match, voice output module includes power amplification circuit and speaker. The utility model discloses sound enlargies effectually, and battery time of endurance is lasting, can avoid the trouble of frequently charging, labour saving and time saving.
Description
Technical field
The utility model relates to a kind of loudspeaker, particularly a kind of solar energy radio loudspeaker.
Background technology
Usually public address equipment can all be used at scenes such as teaching, meeting, military training, guide, sales promotion, auction, rally, parade, elections, if after existing public address equipment does not in use have electricity, need to obtain electric energy by charging, not only waste time and energy, power consumption is many, when needing badly, uncertainly to play at any time.
In addition, class-teaching of teacher, excessively uses throat, causes most teacher all to there is chronic pharyngitis or even more serious throat class occupational disease.At present, the classroom of some schools is equipped with cable microphone and stereo set, and for teacher, its advantage is that sound amplification effect is good; Shortcoming is the freely interaction that microphone connecting line hampers between teacher and student.Ye You school is equipped with Wireless amplification amplifier for teacher, and its advantage is that volume is little, lightweight; Shortcoming is that sound amplification effect is general, and battery life is limited, carry and use still not too convenient.
Utility model content
The purpose of this utility model be overcome prior art above-mentioned deficiency and the solar energy radio loudspeaker that a kind of sound amplification effect is good is provided, battery life is lasting, can avoid the trouble of frequent charge.
The technical solution of the utility model is: a kind of solar energy radio loudspeaker, comprises power module, voice transmission unit and voice receiving unit;
Described power module is made up of storage battery and solar panel;
Described voice transmission unit comprises transmitting terminal main control module and the voice input module that is connected respectively with transmitting terminal main control module and Bluetooth transmission module;
Described voice receiving unit comprises voice output module and Bluetooth receptions module, and described Bluetooth receptions module and Bluetooth transmission module match; Described voice output module comprises power amplification circuit and loud speaker.
Further, the built-in single-chip microcomputer of described Bluetooth receptions module, is connected with power amplification circuit by programmable I/O interface.
Further, described Audio Input Modules is microphone.
Further, described microphone is connected with transmitting terminal main control module through A/D change-over circuit.
Further, described Bluetooth receptions module and/or Bluetooth transmission module are platform based on RisymHC-05 development board.
Further, described Bluetooth receptions module is integration module, carries microcontroller.
Further, described power amplification circuit is operational amplifier TDA7297 chip.
Further, described transmitting terminal main control module is using ATmega8 chip as microcontroller.
The utility model compared with prior art has following features: (1) adopts solar panel, can avoid loudspeaker frequent charge, time saving and energy saving; (2) applied widely; (3) audio frequency antijamming capability in transmission process for digital signal is strong, and can not cause distortion after Bluetooth wireless transmission, sound amplification effect is good; (4) available handsets operation, more user-friendly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
A kind of solar energy radio loudspeaker, comprises power module, voice transmission unit and voice receiving unit.
Power module is made up of storage battery and solar panel; When having sunlight, the solar energy of reception is converted into electric energy to charge in batteries by solar panel, simultaneously for whole circuit provides power supply; Cloudy day or light bad time, storage battery provides power supply for whole circuit.Solar panel is powered and is mainly used in outdoor activities, and storage battery power supply is mainly used in indoor activity.
As shown in Figure 1: voice transmission unit comprises transmitting terminal main control module and the microphone that is connected respectively with transmitting terminal main control module and Bluetooth transmission module.When being applied to open air, Bluetooth transmission module can select effective propagation path to be Bluetooth chip or the bluetooth module of more than 20 meters, if be applied to small size space, effective propagation path can be selected to be Bluetooth chip within 10 meters or bluetooth module, with cost-saving.Microphone is used for the voice signal of reception to be converted to analog voice signal, analog voice signal is delivered to transmitting terminal main control module through A/D change-over circuit, transmitting terminal main control module again by the digital signal after Collect conversion through Bluetooth transmission module transfer to voice receiving unit.The A/D modular converter that A/D change-over circuit can adopt transmitting terminal main control module to carry, also can adopt integrated A/D conversion chip.
Voice receiving unit comprises voice output module and Bluetooth receptions module.Bluetooth receptions module near Bluetooth transmission module automatic search, completes pairing fast.Voice output module comprises power amplification circuit and loud speaker, the built-in single-chip microcomputer of Bluetooth receptions module, is connected with power amplification circuit by programmable I/O interface.Bluetooth receptions module is sent to power amplification circuit by receiving the voice signal come through built-in single-chip microcomputer, and power amplification circuit receives the audio signal from Bluetooth receptions module audio output pin, is exported, restore corresponding audio signal after amplifying by loud speaker.The possibility that audio frequency is disturbed in transmission process for digital signal is little, antijamming capability strong, can not cause distortion after Bluetooth wireless transmission.
Bluetooth receptions module in the present embodiment and Bluetooth transmission module are platform based on RisymHC-05 development board, and effective propagation path is within 10 meters.Power amplification circuit chooses operational amplifier TDA7297 chip.Transmitting terminal main control module is using ATmega8 chip as microcontroller.
The present embodiment by this micropkonic APP software of mobile phone-downloaded, when there being bluetooth, can also can realize micropkonic volume adjusting, can also displaying audio file.
Claims (8)
1. a solar energy radio loudspeaker, is characterized in that: comprise power module, voice transmission unit and voice receiving unit;
Described power module is made up of storage battery and solar panel;
Described voice transmission unit comprises transmitting terminal main control module and the voice input module that is connected respectively with transmitting terminal main control module and Bluetooth transmission module;
Described voice receiving unit comprises voice output module and Bluetooth receptions module, and described Bluetooth receptions module and Bluetooth transmission module match; Described voice output module comprises power amplification circuit and loud speaker.
2. solar energy radio loudspeaker according to claim 1, is characterized in that: the built-in single-chip microcomputer of described Bluetooth receptions module, is connected with power amplification circuit by programmable I/O interface.
3. solar energy radio loudspeaker according to claim 1 and 2, is characterized in that: described Audio Input Modules is microphone.
4. solar energy radio loudspeaker according to claim 3, is characterized in that: described microphone is connected with transmitting terminal main control module through A/D change-over circuit.
5. solar energy radio loudspeaker according to claim 1 and 2, is characterized in that: described Bluetooth receptions module and/or Bluetooth transmission module are platform based on RisymHC-05 development board.
6. solar energy radio loudspeaker according to claim 1 and 2, is characterized in that: described Bluetooth receptions module is integration module, carries microcontroller.
7. solar energy radio loudspeaker according to claim 1 and 2, is characterized in that: described power amplification circuit is operational amplifier TDA7297 chip.
8. solar energy radio loudspeaker according to claim 1 and 2, is characterized in that: described transmitting terminal main control module is using ATmega8 chip as microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851981.0U CN205017587U (en) | 2015-10-30 | 2015-10-30 | Solar energy wireless megaphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851981.0U CN205017587U (en) | 2015-10-30 | 2015-10-30 | Solar energy wireless megaphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017587U true CN205017587U (en) | 2016-02-03 |
Family
ID=55216168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520851981.0U Expired - Fee Related CN205017587U (en) | 2015-10-30 | 2015-10-30 | Solar energy wireless megaphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205017587U (en) |
-
2015
- 2015-10-30 CN CN201520851981.0U patent/CN205017587U/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 |
Granted publication date: 20160203 Termination date: 20181030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |