CN106027081A - Full-band intelligent and adjustable FM transmitter - Google Patents
Full-band intelligent and adjustable FM transmitter Download PDFInfo
- Publication number
- CN106027081A CN106027081A CN201610521406.3A CN201610521406A CN106027081A CN 106027081 A CN106027081 A CN 106027081A CN 201610521406 A CN201610521406 A CN 201610521406A CN 106027081 A CN106027081 A CN 106027081A
- Authority
- CN
- China
- Prior art keywords
- module
- modulation
- transmitter
- input
- output
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
- H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
- H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
- H04H20/48—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for FM stereophonic broadcast systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a full-band intelligent and adjustable FM transmitter. The full-band intelligent and adjustable FM transmitter comprises a battery, a 3.3V direct-current conversion module, an audio file input module, a voice input module, a BH1418 modulation module, a transmitting module, a power amplification module, a micro-processor and a LCD screen; the battery is connected to the 3.3V direct-current conversion module; the 3.3V direct-current conversion module is respectively connected to the audio file input module, the voice input module, the BH1418 modulation module, the transmitting module, the power amplification module, the micro-processor and the LCD screen; the audio file input module and the voice input module are respectively connected to the BH1418 modulation module; the BH1418 modulation module is connected to the power amplification module; the power amplification module is connected to the transmitting module; and the micro-processor is respectively connected to the LCD screen, the BH1418 modulation module and the power amplification module. According to the full-band intelligent and adjustable FM transmitter disclosed by the invention, frequency setting intellectualization, a controllable transmitting distance and a real-time voice input and transmitting function can be realized; due to use of a low-power-consumption processor MSP430 and a chip BH1418, the system power consumption is greatly reduced; and the system performance is improved.
Description
Technical field
The present invention relates to FM lift-off technology field, particularly a kind of full frequency band adjustable FM emitter of intelligence.
Background technology
FM emitter is called again individual miniature broadcasting station, the voice signal of portable audio and video can be sent out by FM modulation
It is shot out, then uses and can receive with radio function equipment.General FM emitter transmitting boundary is tens meters and arrives rice up to a hundred,
Tranmitting frequency is adjustable.And before 1961, that use in the world or simple monophonic modulation technique, until 1961 years
US Federal Communication Committee (FCC) broadcasts stereo channel by checking and approving, this just by the innovation and application of signal multichannel to stereo audio
On.Along with the maturation of technology, FM emitter uses more frequent at short haul connection, this modulating performance stable with it and Gao Pin
The transmitting transmission of matter is closely-related.
FM lift-off technology is applied relatively broad in terms of broadcasting station.Along with the needs of society, FM lift-off technology also obtains more
Application, manufacturer produces various product meeting people's demand by this technology.Existing FM launches the phase and usually adopts
The system in fixed form modulated with stereo FM, but there is problems in use:
1, existing FM transmitter modulation content is single, can only realize the modulation of part voice document.
2, existing FM emitter tranmitting frequency is unstable, the problem that there is frequency drift.
3, existing FM emitter tranmitting frequency is few, easily causes overlapping with other broadcasting stations and cannot use.
4, existing FM emitter power consumption is big, and waste is serious.
5, existing FM emitter transmitting range is uncontrollable, easily causes electricity waste and disturbs other people.
Summary of the invention
For above-mentioned deficiency of the prior art, the present invention provides a kind of full frequency band adjustable FM emitter of intelligence, uses micro-process
Device controls the setting of frequency so that frequency setting realizes intellectuality；Realizing controlled power amplification multiple makes transmitting range controlled,
Improve controllability；Realize real-time phonetic entry and emission function.By using low power processor MSP430 and integration
Chip BH1418, greatly reduces system power dissipation, improves systematic function.
The present invention for achieving the above object, is achieved through the following technical solutions:
A kind of full frequency band adjustable FM emitter of intelligence, including 5V chargeable lithium cell, 3.3V DC conversion modules, audio frequency literary composition
Part input module, voice input module, BH1418 modulation module, transmitter module, power amplifier module, microprocessor and LCD
Display screen；
The output of described 5V chargeable lithium cell connects the input of 3.3V DC conversion modules, the output of 3.3V DC conversion modules
Respectively connect audio file input module, voice input module, BH1418 modulation module, transmitter module, power amplifier module,
Microprocessor and LCD display；
The output of described audio file input module and the output of voice input module connect the input of BH1418 modulation module respectively；
The output of BH1418 modulation module connects the input of power amplifier module；The output of power amplifier module connects the input of transmitter module；
Microprocessor connects LCD display, BH1418 modulation module and power amplifier module respectively.
Contrast prior art, the beneficial effects of the present invention is:
1, FM emitter of the present invention uses microprocessor to be controlled frequency setting so that frequency setting realizes intellectuality.
2, FM emitter of the present invention is by using low power processor MSP430 and integrated chip BH1418, drops greatly
Low system power dissipation, improves systematic function, and meanwhile, integrated chip is capable of the frequency modulation(PFM) at full frequency band, has abundant
Tranmitting frequency.
3, FM emitter of the present invention, it is achieved power amplification multiple is controlled and transmitting range is controlled, improves system controllability and measurability.
4, FM emitter of the present invention realizes real-time phonetic entry and emission function.
Accompanying drawing explanation
Accompanying drawing 1 is the one full frequency band of the present invention adjustable FM emitter structures block diagram of intelligence.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the invention will be further described.Should be understood that these embodiments are merely to illustrate this
Bright rather than limit the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, art technology
The present invention can be made various changes or modifications by personnel, and these equivalent form of values fall within the application appended claims equally and limited
Scope.
As it is shown in figure 1, a kind of full frequency band adjustable FM emitter of intelligence, it is characterised in that: include 5V chargeable lithium cell,
3.3V DC conversion modules, audio file input module, voice input module, BH1418 modulation module, transmitter module, power
Amplification module, microprocessor MSP430 and LCD display；
The output of described 5V chargeable lithium cell connects the input of 3.3V DC conversion modules, the output of 3.3V DC conversion modules
Connect audio file input module, voice input module, BH1418 modulation module, transmitter module, microprocessor MSP430 respectively
And LCD display；
Described audio file input module receives from the portable audio file such as mobile phone, MP3, DM, is exported by audio file
To BH1418 modulation module.
After voice input module receives phonetic entry and is converted to voice signal, BH1418 modulation module is arrived in output.
Voice document signal input circuit can will enter in BH1418 chip, and described speech iput circuit can convert speech into
Voice signal is input in BH1418 chip.
Frequency setting value is sent to BH1418 modulation module by microprocessor MSP430, and BH1418 modulation module receives audio frequency literary composition
The signal of part input module or voice input module inputs and carries out FM modulation, and modulated signal is sent to power amplifier module.
Transmitting range is scaled amplification controlling value and is sent to power amplifier module by microprocessor MSP430, power amplification
Module carries out power amplification according to amplification controlling value to the modulated signal received from BH1418 modulation module, the signal after amplification
It is sent to transmitter module launch.
Microprocessor MSP430 transmission ongoing frequency, setpoint frequency, transmitting range show to LCD display.
Claims (2)
1. the full frequency band adjustable FM emitter of intelligence, it is characterised in that: include 5V chargeable lithium cell, 3.3V direct current
Modular converter, audio file input module, voice input module, BH1418 modulation module, transmitter module, power amplifier module,
Microprocessor and LCD display；
The output of described 5V chargeable lithium cell connects the input of 3.3V DC conversion modules, the output of 3.3V DC conversion modules
Respectively connect audio file input module, voice input module, BH1418 modulation module, transmitter module, power amplifier module,
Microprocessor and LCD display；
The output of described audio file input module and the output of voice input module connect the input of BH1418 modulation module respectively；
The output of BH1418 modulation module connects the input of power amplifier module；The output of power amplifier module connects the input of transmitter module；
Microprocessor connects LCD display, BH1418 modulation module and power amplifier module respectively.
2. a kind of full frequency band adjustable FM emitter of intelligence as claimed in claim 1, it is characterised in that: described microprocessor
Model is MSP430.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521406.3A CN106027081A (en) | 2016-06-29 | 2016-06-29 | Full-band intelligent and adjustable FM transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521406.3A CN106027081A (en) | 2016-06-29 | 2016-06-29 | Full-band intelligent and adjustable FM transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106027081A true CN106027081A (en) | 2016-10-12 |
Family
ID=57107858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521406.3A Pending CN106027081A (en) | 2016-06-29 | 2016-06-29 | Full-band intelligent and adjustable FM transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106027081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788490A (en) * | 2016-12-16 | 2017-05-31 | 深圳市元征科技股份有限公司 | The frequency modulation(PFM) radiating circuit and terminal device of a kind of terminal device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345536A (en) * | 2007-07-09 | 2009-01-14 | 上海基信通讯技术有限公司 | FM emission apparatus of mobile phone |
| CN202190275U (en) * | 2011-08-08 | 2012-04-11 | 陈仪坤 | Mobile frequency-modulated broadcast transmitter |
| CN105577202A (en) * | 2016-01-11 | 2016-05-11 | 浙江大学 | 915MHz power adjustable high power radio frequency transmitter |
| CN205754292U (en) * | 2016-06-29 | 2016-11-30 | 广西大学 | A kind of full frequency band adjustable FM emitter of intelligence |
-
2016
- 2016-06-29 CN CN201610521406.3A patent/CN106027081A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345536A (en) * | 2007-07-09 | 2009-01-14 | 上海基信通讯技术有限公司 | FM emission apparatus of mobile phone |
| CN202190275U (en) * | 2011-08-08 | 2012-04-11 | 陈仪坤 | Mobile frequency-modulated broadcast transmitter |
| CN105577202A (en) * | 2016-01-11 | 2016-05-11 | 浙江大学 | 915MHz power adjustable high power radio frequency transmitter |
| CN205754292U (en) * | 2016-06-29 | 2016-11-30 | 广西大学 | A kind of full frequency band adjustable FM emitter of intelligence |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788490A (en) * | 2016-12-16 | 2017-05-31 | 深圳市元征科技股份有限公司 | The frequency modulation(PFM) radiating circuit and terminal device of a kind of terminal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103298198A (en) | Device for dimming LED lamp through voice commands by means of Bluetooth mobile phone | |
| CN203167335U (en) | Device enabling Bluetooth mobile phone to perform light adjustment on LED lamp through voice commands | |
| CN201742482U (en) | Transmitter of wireless high definition video transmission system | |
| CN203027265U (en) | Digital processing type frequency modulation synchronized broadcasting exciter | |
| CN205754292U (en) | A kind of full frequency band adjustable FM emitter of intelligence | |
| CN106027081A (en) | Full-band intelligent and adjustable FM transmitter | |
| CN207399470U (en) | A kind of multifunction blue tooth Mobile loudspeaker box | |
| EP2509215A3 (en) | Power amplifier circuit with means for tuning wave shape of ASK RF signal envelope, and method for implementing the power amplifier circuit | |
| CN202222003U (en) | TD-SCDMA (time division-synchronization code division multiple access) mode network radio | |
| CN202261317U (en) | CDMA2000 standard network radio set | |
| CN109004999A (en) | A kind of interior wisdom ecology broadcast platform equipment | |
| CN203261347U (en) | Multichannel wireless audio transmission system | |
| CN103248710A (en) | Information distribution system based on integration of wireless radio frequency and mobile communication | |
| CN203181209U (en) | Wireless sound box with wireless charging function | |
| CN203675118U (en) | Infrared transmitting device capable of transmitting analog audio signal and digital signal simultaneously | |
| CN207352955U (en) | A kind of portable mobile wireless sing accompanying system | |
| CN202067384U (en) | Remote controller with wireless audio frequency transmission function | |
| CN203243505U (en) | Electronic device and built-in loudspeaker box system of electronic device | |
| CN205407836U (en) | District calling station that intelligent network is wireless | |
| CN207053728U (en) | A kind of earphone | |
| CN203086452U (en) | Digital wireless intercommunicating system | |
| CN204377082U (en) | Controlled in wireless multi-media sound system | |
| CN205912260U (en) | Take microphone of megaphone | |
| CN206559333U (en) | A kind of Digital Frequency Modulation Transmitter | |
| CN205356588U (en) | Intelligence center control system based on wi -Fi |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |