CN109217890A - A kind of noise reduction communication radio station - Google Patents
A kind of noise reduction communication radio station Download PDFInfo
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- CN109217890A CN109217890A CN201811236605.5A CN201811236605A CN109217890A CN 109217890 A CN109217890 A CN 109217890A CN 201811236605 A CN201811236605 A CN 201811236605A CN 109217890 A CN109217890 A CN 109217890A
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- capacitor
- noise reduction
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- pins
- resistance
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/012—Comfort noise or silence coding
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
- G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
- H04B2001/3872—Transceivers carried on the body, e.g. in helmets with extendable microphones or earphones
Abstract
The invention discloses a kind of noise reduction communication radio stations, including main Mike, secondary Mike, connecting interface, left horn, right horn, lithium battery, voice coding module, RF receiving and transmission module, voice de-noising module, central processing module, Power Management Unit and audio frequency power amplifier, voice coding module is connect with voice de-noising module and central processing module, RF receiving and transmission module is connect with central processing module and antenna, voice de-noising module and main Mike, secondary Mike, audio frequency power amplifier and central processing module connection, central processing module and button, connecting interface and Power Management Unit connection, Power Management Unit is connect with connecting interface and lithium battery, audio frequency power amplifier is connect with left horn and right horn.The design method that noise reduction communication radio station of the invention is combined using passive noise reduction and active noise reduction, can be effectively reduced noise, enhance called clarity, improves communication quality, meets communication requirement of the outfield staff under strong noise environment.
Description
Technical field
The present invention relates to communication station technical fields, and in particular to a kind of noise reduction communication radio station.
Background technique
In the outfields place such as training place, test site, staff's long-term work is easy to hearing occur in strong noise environment
Decline, fatigue, working efficiency reduce phenomena such as, outfield work personnel there is an urgent need to one kind can effectively eliminate noise damage and
The communication equipment of interference.
Summary of the invention
The purpose of the present invention is being directed to above-mentioned status, a kind of noise reduction communication radio station is provided, to solve the above problems.
The technical solution adopted by the present invention are as follows: a kind of noise reduction communication radio station, including main Mike, secondary Mike, connecting interface, a left side
Loudspeaker, right horn, lithium battery, voice coding module, RF receiving and transmission module, voice de-noising module, central processing module, power supply pipe
Reason unit and audio frequency power amplifier, the voice coding module are connect with the voice de-noising module and the central processing module, institute
RF receiving and transmission module is stated to connect with the central processing module and the antenna, the voice de-noising module and the main Mike,
The secondary Mike, the audio frequency power amplifier and central processing module connection, it is the central processing module and the button, described
Connecting interface and Power Management Unit connection, the Power Management Unit are connect with the connecting interface and the lithium battery, institute
Audio frequency power amplifier is stated to connect with the left horn and the right horn.
Effect of the invention is: the design that noise reduction communication radio station of the invention is combined using passive noise reduction and active noise reduction
Noise can be effectively reduced in method, enhances called clarity, improves communication quality, meets outfield staff in very noisy ring
Communication requirement under border.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of noise reduction communication radio station provided by the invention；
Fig. 2 show the configuration schematic diagram of noise reduction communication radio station provided by the invention；
Fig. 3 show the electrical block diagram of noise reduction communication radio station provided by the invention
Fig. 4 show the circuit diagram of voice coding module in noise reduction communication radio station；
Fig. 5 show the circuit diagram of RF receiving and transmission module in noise reduction communication radio station；
Fig. 6 show the circuit diagram of voice de-noising module in noise reduction communication radio station；
Fig. 7 show the circuit diagram of central processing module in noise reduction communication radio station.
Specific embodiment
Noise reduction communication radio station of the invention is introduced with reference to the accompanying drawing:
It as shown in Figure 1, Figure 2, is a kind of noise reduction communication radio station provided by the invention, packet shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7
Include left ear device 1, auris dextra device 2 and wear beam 3, the both ends for wearing beam 3 respectively with the left ear device 1 and the auris dextra
Device 2 is rotatablely connected.
The left ear device 1 includes left earphone outer covering 11, left connecting rod 12, master control borad 13, left horn 14, antenna 15, a left side
Earphone bottom case 16 and call pickup structure 17, the both ends of the left connecting rod 12 and the left earphone outer covering 11 are rotatablely connected, institute
State master control borad 13, the left horn 14 is arranged between the left earphone outer covering 11 and the left earphone bottom case 16, the left ear
Machine shell 11 and the left earphone bottom case 16 are fixed, and the left horn 14 is arranged on the master control borad 13, and the antenna 15 is worn
It is electrically connected set on the left earphone outer covering 11 and with the master control borad 13, the call pickup structure 17 is fixed on the left earphone
It is connect on shell 11 and with the master control borad 13.
The surface bulge of the left earphone outer covering 11 forms one and blocks platform 111, and the left earphone outer covering 11 is located at the screening
The part of 111 lower section of block machine is equipped with several buttons 112, and the button 112 is electrically connected with the master control borad 13.
Secondary Mike hole 113 is offered on the side of the left earphone outer covering 11.
The both ends of the left connecting rod 12 are rotatablely connected with the two sides of the left earphone outer covering 11 respectively, the left connection
The middle part of bar 12 is bent to form left interconnecting piece 121, and the left interconnecting piece 121 is rotatablely connected with described one end for wearing beam 3.
The antenna 15 is L-shaped, and one end is arranged in the left earphone outer covering 11 and is electrically connected with the master control borad 13, another
End is straight up.
Left 16 one side of earphone bottom case and the left earphone outer covering 11 are fixed, the one side far from the left earphone outer covering 11
It is equipped with a left ear blimp 161.
The call pickup structure 17 includes main Mike 171, secondary Mike 172 and main Mike's fixed link 173, the main Mike
171 are arranged in main Mike's fixed link 173, and the secondary Mike 172 is embedded in the secondary Mike hole 113.
The auris dextra device 2 include right earphone shell 21, right connecting rod 22, power panel 23, right horn 24, lithium battery 25,
Right earphone bottom case 26, the both ends of the right connecting rod 22 and the right earphone shell 21 are rotatablely connected, the power panel 23, described
Right horn 24 and the lithium battery 25 are arranged between the right earphone shell 21 and the right earphone bottom case 26, the right earphone
Shell 21 and the right earphone bottom case 26 are fixed, and the lithium battery 25 is arranged on the power panel 23.
The right earphone shell 21 is equipped with a connecting interface 211, and the connecting interface 211 is electrically connected with the power panel 23
It connects.
The both ends of the right connecting rod 22 are rotatablely connected with the two sides of the right earphone shell 21 respectively, the right connection
The middle part of bar 22 is bent to form right interconnecting piece 221, and the right interconnecting piece 221 is rotatablely connected with the other end for wearing beam 3.
The power panel 23 is equipped with the fixed cover 231 of a battery, and the lithium battery 25 is fastened on the fixed cover 231 of the battery
On, the fixed cover 231 of the battery and the power panel 23 are fixed.
The power panel 23 is electrically connected with the lithium battery 25 and the master control borad 13.
It is described to wear that beam 3 is U-shaped, the both ends for wearing beam 3 respectively with the left interconnecting piece 121 and the right interconnecting piece
221 rotation connections.
The beam 3 of wearing further includes electric connection line, and the electric connection line, which is arranged in, described wears beam 3, the electric connection line
Both ends be separately connected the power panel 23 and the master control borad 13.
The noise reduction communication radio station further includes voice coding module 4, RF receiving and transmission module 5, voice de-noising module 6, center
Processing module 7, Power Management Unit 8 and audio frequency power amplifier 9, the voice coding module 4 and the voice de-noising module 6 and described
Central processing module 7 connects, and the RF receiving and transmission module 5 is connect with the central processing module 7 and the antenna 15, institute's predicate
Sound noise reduction module 6 and the main Mike 171, the secondary Mike 172, the audio frequency power amplifier 9 and the central processing module 7 connect
It connects, the central processing module 7 is connect with the button 112, the connecting interface 211 and the Power Management Unit 8, described
Power Management Unit 8 is connect with the connecting interface 211 and the lithium battery 25, the audio frequency power amplifier 9 and the left horn 14
And the right horn 24 connects.
The voice coding module 4, RF receiving and transmission module 5, voice de-noising module 6, central processing module 7 and the audio
Power amplifier 9 is arranged on the master control borad 13, and the Power Management Unit 8 is arranged on the power panel 23.
The voice coding module 4 includes an audio codec IC2, the first coding resistor R30, the second coding resistor
R31, third coding resistor R93, the 4th coding resistor R94, the 5th coding resistor R95, the 6th coding resistor R138, the 7th coding
Resistance R139, the 8th coding resistor R140, the 9th coding resistor R141, the first coding capacitor C52, the second coding capacitor C53, the
Three coding capacitor C54, the 4th coding capacitor C55, the 5th coding capacitor C56, the 6th coding capacitor C57, the 7th coding capacitor
C58, the 8th coding capacitor C59, the 9th coding capacitor C60, the tenth coding capacitor C61, the 11st coding capacitor C62, the 12nd
Encode capacitor C63, the 13rd coding capacitor C64, the 14th coding capacitor C65, the 8th coding resistor R140 and the sound
The No.1 pin of frequency codec IC2 connects, and No. four pins of the audio codec IC2, No. ten pins, two ride on Bus No. 11s are drawn
Foot, 20 No. two pins, 20 No. seven pins, three No. ten pins, 30 No. eight pins, 40 No. three pins, 40 No. seven draw
Foot, 40 No. eight pins and 60 No. five pin ground connection, No. five pins and 40 No. five pins of the audio codec IC2
With the third coding resistor R93, one end of the second coding capacitor C53, one end of the 4th coding capacitor C55, institute
One end of the 6th coding capacitor C57 and one end connection of the first coding resistor R30 are stated, the second coding capacitor C53's
The other end ground connection of the other end, the other end of the 4th coding capacitor C55 and the 6th coding capacitor C57, described first
The other end of coding resistor R30 is connect with 50 No. seven pins of the audio codec IC2, the audio codec
No. seven pins of IC2 are connect with one end of the 13rd coding capacitor C64 and the second coding resistor R31, and the described tenth
Three coding capacitor C64 the other ends ground connection, ten No. two pins and 30 No. seven pins of the audio codec IC2 with it is described
One end of one end of the 7th coding capacitor C58, one end of the 8th coding capacitor C59 and the 9th coding capacitor C60 connects
It connects, the other end and the 9th coding capacitor of the other end of the 7th coding capacitor C58, the 8th coding capacitor C59
The other end of C60 is grounded, one end of ten No. three pins of the audio codec IC2 and the tenth coding capacitor C61, institute
State one end connection of the 11st coding capacitor C62, the other end, the 11st coding capacitor of the tenth coding capacitor C61
The other end of C62 is connect with ten No. six pins of the 4th coding resistor R94 and audio codec IC2, and described
14 coding one end capacitor C65 are connect with 20 No. seven pins of the audio codec IC2, and the other end is grounded, and described the
Six coding resistor R138 are connect with 50 No. nine pins of the audio codec IC2, the 7th coding resistor R139 with
The six ride on Bus No. 11 pins of the audio codec IC2 connect, the 9th coding resistor R141 and the audio codec
60 No. four pins of IC2 connect.
The model CMX7261 of the audio codec IC2.
The RF receiving and transmission module 5 includes RF transceiver IC4, crystal oscillator G2, the first radio-frequency resistance R42, the second radio frequency electrical
Resistance R44, third radio-frequency resistance R45, the 4th radio-frequency resistance R46, the 5th radio-frequency resistance R48, the 6th radio-frequency resistance R50, the 7th penetrate
Frequency resistance R98, the 8th radio-frequency resistance R99, the 9th radio-frequency resistance R100, the first radio frequency capacitor C87, the second radio frequency capacitor C88,
Three radio frequency capacitor C89, the 4th radio frequency capacitor C90, the 5th radio frequency capacitor C97, the 6th radio frequency capacitor C99, the 7th radio frequency capacitor
C100, the 8th radio frequency capacitor C104, the 9th radio frequency capacitor C105, the tenth radio frequency capacitor C106, the 11st radio frequency capacitor C113,
12 radio frequency capacitor C114, the 13rd radio frequency capacitor C118, the 14th radio frequency capacitor C119, the 15th radio frequency capacitor C122,
16 radio frequency capacitor C123, the first radio frequency inductive L2, the second radio frequency inductive L8, third radio frequency inductive L10, the 4th radio frequency inductive
L12, the first rf diode V1 and the second rf diode V2, the No.1 pin of the RF transceiver IC4 and described second
One end of radio frequency inductive L8 and one end of the first radio frequency capacitor C89 connection, the other end of the first radio frequency capacitor C89 with
The connection of one end of the anode of the first rf diode V1 and the first radio frequency inductive L2, the first rf diode V1
Minus earth, the other end of the first radio frequency inductive L2 penetrates with the cathode of the second rf diode V2 and the described 4th
One end of frequency capacitor C90 connects, and the other end of the 4th radio frequency capacitor C90 is connect with the antenna 15, second radio frequency
The anode of diode V2 and one end of the 11st radio frequency capacitor C113, one end of the third radio frequency inductive L10 and described
One end of 4th radio frequency inductive L12 connects, the other end ground connection of the 11st radio frequency capacitor C113, the third radio frequency inductive
The other end of L10 is connect with 20 No. seven pins of the RF transceiver IC4, the other end of the 4th radio frequency inductive L12
With 20 No. five pins of the RF transceiver IC4, one end of the 12nd radio frequency capacitor C114, the 13rd radio frequency
One end of capacitor C118 connects, and the other end of the 12nd radio frequency capacitor C114 and the 13 radio frequency capacitor C118's is another
One end of end ground connection, 20 No. four pins of the RF transceiver IC4 and the 15th radio frequency capacitor C122, the described tenth
One end of six radio frequency capacitor C123 and the 9th radio-frequency resistance R100 connection, the other end of the 15th radio frequency capacitor C122
And the other end ground connection of the 16th radio frequency capacitor C123, No. two pins of the RF transceiver IC4 are penetrated with the described 9th
One end of frequency capacitor C105 connects, the other end ground connection of the 9th radio frequency capacitor C105, and No. three of the RF transceiver IC4
Pin is connect with one end of one end of the 7th radio-frequency resistance R98 and the 7th radio frequency capacitor C100, the 7th radio frequency
The other end of capacitor C100 is grounded, one end of No. four pins of the RF transceiver IC4 and the 8th radio frequency capacitor C104
Connection, the other end ground connection of the 8th radio frequency capacitor C104, No. five pins of the RF transceiver IC4 are penetrated with the described 5th
One end of frequency capacitor C97 connects, and the other end of the 5th radio frequency capacitor C97 is connect with the crystal oscillator G2, first radio frequency
One end of resistance R42 is connect with the crystal oscillator G2, the other end and the first radio frequency capacitor of the first radio-frequency resistance R42
One end of C87 and the connection of one end of the second radio frequency capacitor C88, the other end of the first radio frequency capacitor C87 and described the
The other end of two radio frequency capacitor C88 is grounded, one end of the second radio-frequency resistance R44 and third radio-frequency resistance R45, described
One end of 6th radio frequency capacitor C99, one end of the 4th radio-frequency resistance R46 and the crystal oscillator G2 connection, the third radio frequency
The other end ground connection of the other end of resistance R45, the other end of the 6th radio frequency capacitor C99, the 4th radio-frequency resistance R46,
No. seven pins of the RF transceiver IC4 are connect with one end of the 6th radio-frequency resistance R50, the 6th radio-frequency resistance
The other end of R50 is connect with one end of the 5th radio-frequency resistance R48 and the tenth radio frequency capacitor C106, the tenth radio frequency
The other end of capacitor C106 is grounded, ten No. four pins of the RF transceiver IC4 and one end of the 8th radio-frequency resistance R99
And one end connection of the 14th radio frequency capacitor C119, the other end ground connection of the 14th radio frequency capacitor C119.
The model SX1278 of the RF transceiver IC4.
The voice de-noising module 6 includes voice de-noising device IC1, noise reduction crystal oscillator G1, the first noise reduction resistance R5, the second noise reduction
Resistance R6, third noise reduction resistance R9, the 4th noise reduction resistance R11, the 5th noise reduction resistance R12, the 6th noise reduction resistance R13, the 7th drop
Make an uproar resistance R16, the 8th noise reduction resistance R17, the 9th noise reduction resistance R18, the tenth noise reduction resistance R19, the 11st noise reduction resistance R81,
12nd noise reduction resistance R106, the 13rd noise reduction resistance R107, the 14th noise reduction resistance R109, the 15th noise reduction resistance R818,
First noise reduction capacitor C2, the second noise reduction capacitor C3, third noise reduction capacitor C4, the 4th noise reduction capacitor C5, the 5th noise reduction capacitor C6,
Six noise reduction capacitor C13, the 7th noise reduction capacitor C14, the 8th noise reduction capacitor C16, the 9th noise reduction capacitor C17, the tenth noise reduction capacitor
C18, the 11st noise reduction capacitor C19, the 12nd noise reduction capacitor C20, the 13rd noise reduction capacitor C21, the 14th noise reduction capacitor C22,
15th noise reduction capacitor C23, the 16th noise reduction capacitor C24, the 17th noise reduction capacitor C25, the 18th noise reduction capacitor C26, the tenth
Nine noise reduction capacitor C27, the 20th noise reduction capacitor C30, the 21st noise reduction capacitor C31, the 22nd noise reduction capacitor C190, second
13 noise reduction capacitor C191, the No.1 pin of the voice de-noising device IC1 are connect with one end of the third noise reduction resistance R9, institute
No. two pins of predicate sound denoiser IC1 are connect with one end of the 4th noise reduction resistance R11, the voice de-noising device IC1's
No. three pins are connect with one end of the 5th noise reduction resistance R12, No. four pins and the described 6th of the voice de-noising device IC1
One end of noise reduction capacitor C13 and the connection of one end of the 7th noise reduction capacitor C14, the other end of the 6th noise reduction capacitor C13
And the other end ground connection of the 7th noise reduction capacitor C14, No. nine pins of the voice de-noising device IC1 and the 8th noise reduction electricity
Hold the connection of the one end C16, the other end ground connection of the 8th noise reduction capacitor C16, No. ten pins of the voice de-noising device IC1 and institute
The connection of the 6th noise reduction one end resistance R13 is stated, the other end of the 6th noise reduction resistance R13 is grounded, the voice de-noising device IC1's
Ten No. three pins are connect with described one end 9th noise reduction capacitor C17, the other end ground connection of the 9th noise reduction capacitor C17, described
Ten No. nine pins of voice de-noising device IC1 are connect with described one end 14th noise reduction capacitor C22, the 14th noise reduction capacitor
The other end of C22 is grounded, and 20 No. six pins and 20 No. seven pins of the voice de-noising device IC1 are dropped with the described 9th respectively
Make an uproar resistance R18 one end and the tenth noise reduction resistance R19 one end connection, the other end of the 9th noise reduction resistance R18 and
The other end of the tenth noise reduction resistance R19 is grounded, 30 No. five pins of the voice de-noising device IC1 and the 20th drop
Make an uproar capacitor C30 one end and the 21st noise reduction capacitor C31 one end connection, the 20th noise reduction capacitor C30's is another
The other end of one end and the 21st noise reduction capacitor C31 ground connection, 30 No. six pins of the voice de-noising device IC1 and institute
State one end connection of the 17th noise reduction capacitor C25, the other end and the voice de-noising device of the 17th noise reduction capacitor C25
30 No. seven pins of IC1 connect, 30 No. eight pins of the voice de-noising device IC1 and the 18th noise reduction capacitor C26
One end and the 19th noise reduction capacitor C27 one end connection, the other end of the 18th noise reduction capacitor C26 and described the
The other end of 19 noise reduction capacitor C27 is grounded, 30 No. nine pins and four No. ten pins of the voice de-noising device IC1 respectively with
The 8th noise reduction resistance R17 and the 7th noise reduction resistance R16 connection, the four ride on Bus No. 11 pins of the voice de-noising device IC1
With described one end 15th noise reduction capacitor C23, described one end 16th noise reduction capacitor C24, the tenth noise reduction capacitor C18 mono-
End, described one end 11st noise reduction capacitor C19, the 14th noise reduction one end resistance R109 and the voice de-noising device IC1
40 No. two pin connections, the 15th noise reduction capacitor C23 other end and another termination of the 16th noise reduction capacitor C24
Ground, the tenth noise reduction capacitor C18 other end and the 11st noise reduction capacitor C19 other end ground connection, the voice de-noising device
40 No. three pins of IC1 are connect with the 12nd noise reduction one end capacitor C20 and described one end 13rd noise reduction capacitor C21,
The 12nd noise reduction capacitor C20 other end and the 13rd noise reduction capacitor C21 other end ground connection, the voice de-noising device
40 No. eight pins of IC1 are connect with the 23rd noise reduction capacitor C191, and 40 No. nine of the voice de-noising device IC1 are drawn
Foot is connect with the 15th noise reduction one end resistance R818 and the 22nd noise reduction capacitor C190, the 15th noise reduction electricity
R818 other end ground connection is hindered, the six ride on Bus No. 11 pins of the voice de-noising device IC1 are connect with the one end the first noise reduction resistance R5,
The first noise reduction resistance R5 other end ground connection, 60 No. two pins of the voice de-noising device IC1 and the noise reduction crystal oscillator G1
And the connection of the 5th noise reduction one end capacitor C6,60 No. three pins of the voice de-noising device IC1 and the noise reduction crystal oscillator G1
And third noise reduction one end capacitor C4 connection, the 5th noise reduction capacitor C6 other end and the three noise reductions capacitor C4 other end
Ground connection, 60 No. five pins of the voice de-noising device IC1 and described second noise reduction one end capacitor C3 and the 13rd noise reduction
Resistance R107 connection, the second noise reduction capacitor C3 other end ground connection, 60 No. eight pins of the voice de-noising device IC1 and institute
The connection of first noise reduction one end capacitor C2 is stated, the first noise reduction capacitor C2 other end is grounded, and the 70 of the voice de-noising device IC1
No. five pins are connect with the 4th noise reduction one end capacitor C5 and the 12nd noise reduction resistance R106, the 4th noise reduction capacitor
C5 other end ground connection.
The model CX20709 of the voice de-noising device IC1.
The central processing module 7 includes master controller IC3, reset chip D2, the first processing capacitor C75, second processing
Capacitor C76, first processing one end capacitor C75 are connect with the master controller IC3, other end ground connection, the second processing
The one end capacitor C76 is connect with the reset chip D2, the second processing capacitor C76 other end ground connection, the reset chip D2
It is connect with the master controller IC3.
The model MAX811 of the reset chip D2.
The design method that noise reduction communication radio station of the invention is combined using passive noise reduction and active noise reduction, can effectively drop
Low noise enhances called clarity, improves communication quality, meets communication requirement of the outfield staff under strong noise environment.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of noise reduction communication radio station, characterized in that it comprises: main Mike, secondary Mike, connecting interface, left horn, right loudspeaker
, lithium battery, voice coding module, RF receiving and transmission module, voice de-noising module, central processing module, Power Management Unit and
Audio frequency power amplifier, the voice coding module are connect with the voice de-noising module and the central processing module, and the radio frequency is received
Hair module is connect with the central processing module and the antenna, the voice de-noising module and the main Mike, the secondary wheat
Gram, the audio frequency power amplifier and central processing module connection, the central processing module and the button, the connecting interface
And Power Management Unit connection, the Power Management Unit are connect with the connecting interface and the lithium battery, the audio function
It puts and is connect with the left horn and the right horn.
2. noise reduction communication radio station according to claim 1, which is characterized in that the voice coding module is compiled including an audio
Decoder, the first coding resistor, the second coding resistor, third coding resistor, the 4th coding resistor, the 5th coding resistor, the 6th
Coding resistor, the 7th coding resistor, the 8th coding resistor, the 9th coding resistor, the first coding capacitor, the second coding capacitor, the
Three coding capacitors, the 4th coding capacitor, the 5th coding capacitor, the 6th coding capacitor, the 7th coding capacitor, the 8th coding capacitor,
9th coding capacitor, the tenth coding capacitor, the 11st coding capacitor, the 12nd coding capacitor, the 13rd coding capacitor, the 14th
Capacitor is encoded, the 8th coding resistor is connect with the No.1 pin of the audio codec, the audio codec
No. four pins, No. ten pins, two ride on Bus No. 11 pins, 20 No. two pins, 20 No. seven pins, three No. ten pins, 30 No. eight
Pin, 40 No. three pins, 40 No. seven pins, 40 No. eight pins and 60 No. five pin ground connection, the audio coding decoding
No. five pins of device and 40 No. five pins and the third coding resistor, one end of the second coding capacitor, the described 4th
One end, one end of the 6th coding capacitor and one end connection of first coding resistor of capacitor are encoded, described second compiles
The other end ground connection of the other end of code capacitor, the other end of the 4th coding capacitor and the 6th coding capacitor, described the
The other end of one coding resistor is connect with 50 No. seven pins of the audio codec, and No. seven of the audio codec
Pin is connect with one end of the 13rd coding capacitor and second coding resistor, and the described 13rd encodes the another of capacitor
One end of end ground connection, ten No. two pins of the audio codec and 30 No. seven pins and the 7th coding capacitor, institute
State one end of the 8th coding capacitor and one end connection of the 9th coding capacitor, the other end of the 7th coding capacitor, institute
The other end of the other end and the 9th coding capacitor of stating the 8th coding capacitor is grounded, and ten No. three of the audio codec
Pin is connect with one end of one end of the tenth coding capacitor, the 11st coding capacitor, the tenth coding capacitor
Ten No. six of the other end, the other end of the 11st coding capacitor and the 4th coding resistor and the audio codec
Pin connection, the 14th coding capacitor one end are connect with 20 No. seven pins of the audio codec, another termination
Ground, the 6th coding resistor are connect with 50 No. nine pins of the audio codec, the 7th coding resistor and institute
The six ride on Bus No. 11 pins for stating audio codec connect, and 60 No. four of the 9th coding resistor and the audio codec
Pin connection.
3. noise reduction communication radio station according to claim 2, which is characterized in that the RF receiving and transmission module includes radio-frequency receiving-transmitting
Device, crystal oscillator, the first radio-frequency resistance, the second radio-frequency resistance, third radio-frequency resistance, the 4th radio-frequency resistance, the 5th radio-frequency resistance, the 6th
Radio-frequency resistance, the 7th radio-frequency resistance, the 8th radio-frequency resistance, the 9th radio-frequency resistance, the first radio frequency capacitor, the second radio frequency capacitor,
Three radio frequency capacitors, the 4th radio frequency capacitor, the 5th radio frequency capacitor, the 6th radio frequency capacitor, the 7th radio frequency capacitor, the 8th radio frequency capacitor,
9th radio frequency capacitor, the tenth radio frequency capacitor, the 11st radio frequency capacitor, the 12nd radio frequency capacitor, the 13rd radio frequency capacitor, the 14th
Radio frequency capacitor, the 15th radio frequency capacitor, the 16th radio frequency capacitor, the first radio frequency inductive, the second radio frequency inductive, third radio frequency electrical
Sense, the 4th radio frequency inductive, the first rf diode and the second rf diode, the No.1 pin of the RF transceiver with it is described
One end of second radio frequency inductive and one end of the first radio frequency capacitor connection, the other end of the first radio frequency capacitor with it is described
The connection of one end of the anode of first rf diode and first radio frequency inductive, the cathode of first rf diode connect
Ground, the other end of first radio frequency inductive and the cathode of second rf diode and one end of the 4th radio frequency capacitor
Connection, the other end of the 4th radio frequency capacitor connect with the antenna, the anode of second rf diode and described the
One end of one end of 11 radio frequency capacitors, one end of the third radio frequency inductive and the 4th radio frequency inductive connects, and described the
The other end of 11 radio frequency capacitors is grounded, and the other end of the third radio frequency inductive draws with 20 No. seven of the RF transceiver
Foot connection, the other end of the 4th radio frequency inductive and 20 No. five pins, the 12nd radio frequency of the RF transceiver
One end connection of one end of capacitor, the 13rd radio frequency capacitor, the other end and described 13 of the 12nd radio frequency capacitor
The other end of radio frequency capacitor is grounded, one end of 20 No. four pins of the RF transceiver and the 15th radio frequency capacitor,
One end of the 16th radio frequency capacitor and the 9th radio-frequency resistance connection, the other end of the 15th radio frequency capacitor and institute
State the other end ground connection of the 16th radio frequency capacitor, No. two pins of the RF transceiver and one end of the 9th radio frequency capacitor
Connection, the other end ground connection of the 9th radio frequency capacitor, No. three pins and the 7th radio-frequency resistance of the RF transceiver
One end and the 7th radio frequency capacitor one end connection, the 7th radio frequency capacitor the other end ground connection, the radio-frequency receiving-transmitting
No. four pins of device are connect with one end of the 8th radio frequency capacitor, the other end ground connection of the 8th radio frequency capacitor, described to penetrate
No. five pins of frequency transceiver are connect with one end of the 5th radio frequency capacitor, the other end of the 5th radio frequency capacitor with it is described
Crystal oscillator connection, one end of first radio-frequency resistance connect with the crystal oscillator, the other end of first radio-frequency resistance with it is described
One end of first radio frequency capacitor and the connection of one end of the second radio frequency capacitor, the other end of the first radio frequency capacitor and described
The other end of second radio frequency capacitor is grounded, and one end of second radio-frequency resistance and the third radio-frequency resistance, the described 6th penetrate
One end of frequency capacitor, one end of the 4th radio-frequency resistance and crystal oscillator connection, the other end of the third radio-frequency resistance, institute
State the other end of the 6th radio frequency capacitor, the other end ground connection of the 4th radio-frequency resistance, No. seven pins of the RF transceiver
It is connect with one end of the 6th radio-frequency resistance, the other end of the 6th radio-frequency resistance and the 5th radio-frequency resistance and described
One end of tenth radio frequency capacitor connects, and the other end ground connection of the tenth radio frequency capacitor, ten No. four of the RF transceiver are drawn
Foot is connect with one end of one end of the 8th radio-frequency resistance and the 14th radio frequency capacitor, the 14th radio frequency capacitor
Other end ground connection.
4. noise reduction communication radio station according to claim 3, which is characterized in that the voice de-noising module includes voice de-noising
Device, noise reduction crystal oscillator, the first noise reduction resistance, the second noise reduction resistance, third noise reduction resistance, the 4th noise reduction resistance, the 5th noise reduction resistance,
6th noise reduction resistance, the 7th noise reduction resistance, the 8th noise reduction resistance, the 9th noise reduction resistance, the tenth noise reduction resistance, the 11st noise reduction electricity
Resistance, the 12nd noise reduction resistance, the 13rd noise reduction resistance, the 14th noise reduction resistance, the 15th noise reduction resistance, the first noise reduction capacitor,
Second noise reduction capacitor, third noise reduction capacitor, the 4th noise reduction capacitor, the 5th noise reduction capacitor, the 6th noise reduction capacitor, the 7th noise reduction electricity
Hold, the 8th noise reduction capacitor, the 9th noise reduction capacitor, the tenth noise reduction capacitor, the 11st noise reduction capacitor, the 12nd noise reduction capacitor, the tenth
Three noise reduction capacitors, the 14th noise reduction capacitor, the 15th noise reduction capacitor, the 16th noise reduction capacitor, the 17th noise reduction capacitor, the 18th
Noise reduction capacitor, the 19th noise reduction capacitor, the 20th noise reduction capacitor, the 21st noise reduction capacitor, the 22nd noise reduction capacitor, second
13 noise reduction capacitors, the No.1 pin of the voice de-noising device are connect with one end of the third noise reduction resistance, the voice drop
No. two pins of device of making an uproar are connect with one end of the 4th noise reduction resistance, No. three pins and the described 5th of the voice de-noising device
One end of noise reduction resistance connects, No. four pins of the voice de-noising device and one end and the described 7th of the 6th noise reduction capacitor
One end of noise reduction capacitor connects, the other end of the 6th noise reduction capacitor and the other end ground connection of the 7th noise reduction capacitor, institute
No. nine pins of predicate sound denoiser are connect with the 8th noise reduction capacitor one end, another termination of the 8th noise reduction capacitor
No. ten pins on ground, the voice de-noising device are connect with the 6th noise reduction resistance one end, the 6th noise reduction resistance it is another
End ground connection, ten No. three pins of the voice de-noising device are connect with the 9th noise reduction capacitor one end, the 9th noise reduction capacitor
Other end ground connection, ten No. nine pins of the voice de-noising device connect with the 14th noise reduction capacitor one end, the described tenth
The other ends of four noise reduction capacitors is grounded, and 20 No. six pins and 20 No. seven pins of the voice de-noising device are respectively with described the
One end of nine noise reduction resistance and the connection of one end of the tenth noise reduction resistance, the other end of the 9th noise reduction resistance and described the
The other end of ten noise reduction resistance is grounded, 30 No. five pins of the voice de-noising device and one end of the 20th noise reduction capacitor
And one end connection of the 21st noise reduction capacitor, the other end and the 21st noise reduction of the 20th noise reduction capacitor
The other end of capacitor is grounded, and 30 No. six pins of the voice de-noising device are connect with one end of the 17th noise reduction capacitor,
The other end of the 17th noise reduction capacitor is connect with 30 No. seven pins of the voice de-noising device, the voice de-noising device
30 No. eight pins are connect with one end of one end of the 18th noise reduction capacitor and the 19th noise reduction capacitor, and the described tenth
The other end of the other end of eight noise reduction capacitors and the 19th noise reduction capacitor ground connection, 30 No. nine of the voice de-noising device are drawn
Foot and four No. ten pins are connect with the 8th noise reduction resistance and the 7th noise reduction resistance respectively, and the four of the voice de-noising device
Ride on Bus No. 11 pin and the 15th noise reduction capacitor one end, the 16th noise reduction capacitor one end, the tenth noise reduction capacitor one
End, the 11st noise reduction capacitor one end, 40 No. two of described 14th noise reduction resistance one end and the voice de-noising device draw
Foot connection, the 15th noise reduction capacitor other end and the 16th noise reduction capacitor other end ground connection, the tenth noise reduction electricity
Hold the other end and the 11st noise reduction capacitor other end ground connection, 40 No. three pins and the described tenth of the voice de-noising device
Two noise reduction capacitor one end and the connection of described 13rd noise reduction capacitor one end, the 12nd noise reduction capacitor other end and the described tenth
Three noise reduction capacitor other ends ground connection, 40 No. eight pins of the voice de-noising device and the 23rd noise reduction capacitance connection,
40 No. nine pins of the voice de-noising device and described 15th noise reduction resistance one end and the 22nd noise reduction capacitor connect
It connects, the 15th noise reduction resistance other end ground connection, six ride on Bus No. 11 pins of the voice de-noising device and first noise reduction electricity
Hinder one end connection, the first noise reduction resistance other end ground connection, 60 No. two pins and the noise reduction of the voice de-noising device
Crystal oscillator and the connection of described 5th noise reduction capacitor one end, 60 No. three pins of the voice de-noising device and the noise reduction crystal oscillator and institute
The connection of third noise reduction capacitor one end, the 5th noise reduction capacitor other end and three noise reductions capacitor other end ground connection are stated, it is described
60 No. five pins of voice de-noising device are connect with described second noise reduction capacitor one end and the 13rd noise reduction resistance, and described
Two noise reduction capacitor other ends ground connection, 60 No. eight pins of the voice de-noising device are connect with described first noise reduction capacitor one end,
The first noise reduction capacitor other end ground connection, 70 No. five pins of the voice de-noising device and the 4th noise reduction capacitor one end
And the 12nd noise reduction resistance connection, the 4th noise reduction capacitor other end ground connection.
5. noise reduction communication radio station according to claim 4, which is characterized in that the central processing module includes main control
Device, reset chip, the first processing capacitor, second processing capacitor, first processing capacitor one end are connect with the master controller,
Other end ground connection, second processing capacitor one end are connect with the reset chip, the second processing capacitor other end ground connection,
The reset chip is connect with the master controller.
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| CN201811236605.5A CN109217890B (en) | 2018-10-23 | 2018-10-23 | Noise reduction communication radio station |
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| CN201811236605.5A CN109217890B (en) | 2018-10-23 | 2018-10-23 | Noise reduction communication radio station |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800323A (en) * | 2012-06-25 | 2012-11-28 | 华为终端有限公司 | Method and device for reducing noises of voice of mobile terminal |
| CN104936052A (en) * | 2015-04-24 | 2015-09-23 | 成都迈奥信息技术有限公司 | Multifunctional Bluetooth earphone |
| CN206906990U (en) * | 2017-06-19 | 2018-01-19 | 深圳市相位科技有限公司 | A kind of blue tooth voice keyboard based on microphone array |
| CN108683433A (en) * | 2018-03-16 | 2018-10-19 | 西北工业大学 | A kind of submarine navigation device multipurpose radio communication device |
-
2018
- 2018-10-23 CN CN201811236605.5A patent/CN109217890B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800323A (en) * | 2012-06-25 | 2012-11-28 | 华为终端有限公司 | Method and device for reducing noises of voice of mobile terminal |
| CN104936052A (en) * | 2015-04-24 | 2015-09-23 | 成都迈奥信息技术有限公司 | Multifunctional Bluetooth earphone |
| CN206906990U (en) * | 2017-06-19 | 2018-01-19 | 深圳市相位科技有限公司 | A kind of blue tooth voice keyboard based on microphone array |
| CN108683433A (en) * | 2018-03-16 | 2018-10-19 | 西北工业大学 | A kind of submarine navigation device multipurpose radio communication device |
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