CN108282167A - The intercom uttered long and high-pitched sounds can be solved closely to converse and method that solution is uttered long and high-pitched sounds - Google Patents
The intercom uttered long and high-pitched sounds can be solved closely to converse and method that solution is uttered long and high-pitched sounds Download PDFInfo
- Publication number
- CN108282167A CN108282167A CN201810061149.9A CN201810061149A CN108282167A CN 108282167 A CN108282167 A CN 108282167A CN 201810061149 A CN201810061149 A CN 201810061149A CN 108282167 A CN108282167 A CN 108282167A
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- Prior art keywords
- intercom
- control unit
- signal strength
- sound output
- unit
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Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- 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
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- 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
- H04B1/3833—Hand-held transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
- H04Q5/245—Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for microphones
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Transceivers (AREA)
Abstract
Solve the intercom uttered long and high-pitched sounds of closely conversing, including intercom ontology, master board is equipped in the intercom ontology, the master board includes the receiving circuit unit for receiving the signal that transmitting intercom launches, signal strength detection unit for calculating signal strength, MCU control unit for judging signal strength size and the sound output control unit for controlling sound output, the receiving circuit unit is connect with signal strength detection unit, the signal strength detection unit is connect with MCU control unit, the MCU control unit is connect with sound output control unit.The present invention receives the intensity of signal to adjust the sound output of intercom by detection, solves the problems, such as closely to utter long and high-pitched sounds and remote big volume to reach.When two intercom short distance intercommunications, reception intercom received signal intensity is stronger, solves the problems, such as closely to utter long and high-pitched sounds by way of reducing sound output.
Description
Technical field
The present invention relates to the communications field, in particular to can solve closely to converse the intercom uttered long and high-pitched sounds and solution is uttered long and high-pitched sounds
Method.
Background technology
Intercom in use, when two intercoms apart from it is closer when, receive the sound that is sent out to the loudspeaker of equipment
Sound can return to the microphone of transmitting intercommunication machine equipment, form self-excitation, and reception talk back equipment is caused to be uttered long and high-pitched sounds.It currently, should for solution
Problem, it is necessary to intercom microphone gain be emitted by limitation or receive intercom loudspeaker power, to balance entire sound chain
The gain on road avoids closely uttering long and high-pitched sounds.But by simply reducing the microphone gain of transmitting intercom or receiving intercom
Loudspeaker power affects remote speech quality, limits max volume although solving the problems, such as uttering long and high-pitched sounds for short distance,
It is unable to reach optimum efficiency in remote and short distance intercommunication.Such as environment indoors, environment is closed, must in order to avoid uttering long and high-pitched sounds
Horn volume or microphone gain must be limited, so that the sound on transmitting-receiving intercom is reached a kind of balance, but this mode is with sacrificial
Domestic animal audio optimal performance is cost.Such as in outdoor environment, environment is spacious, more noisy, it is desirable that sound is bigger, is at this moment used for room
The audio frequency parameter setting of interior environment just cannot be satisfied outdoor requirement, needs to rewrite and writes frequency parameter, and operation is too complicated,
Efficiency is low.
Invention content
The present invention is to provide the method that can solve closely to converse the intercom uttered long and high-pitched sounds and solution is uttered long and high-pitched sounds, main purposes
It is to overcome the problems, such as to solve to utter long and high-pitched sounds between existing intercom ineffective.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
The intercom uttered long and high-pitched sounds of closely conversing, including intercom ontology can be solved, main control is equipped in the intercom ontology
Plate, the master board include for receiving the receiving circuit unit for the signal that transmitting intercom launches, for calculating signal
The signal strength detection unit of intensity, the MCU control unit for judging signal strength size and for controlling audio output
The sound output control unit of power, the receiving circuit unit are connect with signal strength detection unit, the signal strength
Detection unit is connect with MCU control unit, which connect with sound output control unit.
Further, it is additionally provided with the wireless communication unit being connect with receiving circuit unit in the intercom ontology.
Further, the receiving circuit unit includes filter circuit, amplifying circuit and mixting circuit.
Invention additionally discloses the method uttered long and high-pitched sounds of closely conversing is solved, include the following steps：
(1) in the maximum value and minimum value of MCU control unit preset signal strength；
(2) the intrinsic receiving circuit unit of intercom receives the signal of transmitting intercom；
(3) signal strength detection unit calculates the intensity of signal；
(4) MCU control unit controls output audio power according to calculated signal strength, when signal strength is more than or waits
When preset maximum value, then MCU control unit control sound output control unit exports minimum audio power；Work as signal
When intensity is less than or equal to preset minimum value, then MCU control unit control sound output control unit exports maximum sound
Frequency power；When signal strength is between preset minimum value and maximum value, then MCU control unit controls sound output
Control unit exports intervening gears audio power；Sound output control unit then controls audio output gain or control audio
Power amplifier gain achievees the purpose that the whole sound output of control.
Further, wireless communication unit, the intercom ontology and transmitting intercommunication are additionally provided in the intercom ontology
The radio-frequency enabled that signal transmission between machine can be had by oneself by intercom itself is transmitted, or unit is passed by radio communication
It is defeated.
By the above-mentioned description of this invention it is found that compared to the prior art, the invention has the advantages that：The present invention passes through
Detection receives the intensity of signal to adjust the sound output of intercom, solves closely to utter long and high-pitched sounds and remote big sound to reach
The problem of amount.When two intercom short distance intercommunications, reception intercom received signal intensity is stronger, and passing through reduces audio output
The mode of power solves the problems, such as closely to utter long and high-pitched sounds；When two intercom long-distance talkbacks, intercom received signal intensity is received
Weaker, this situation improves volume, to reach best audio there is no problem of uttering long and high-pitched sounds by way of improving sound output.
The present invention solves also to ensure remote speech quality while closely uttering long and high-pitched sounds in the case where not increasing products-hardware cost,
It can be compatible with for the talk back equipment of various brands simultaneously.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the flow diagram of the present invention.
Specific implementation mode
Referring to Fig.1.The intercom uttered long and high-pitched sounds of closely conversing, including intercom ontology 1 can be solved, in the intercom ontology 1
Equipped with master board, which includes for receiving the receiving circuit unit 2 for the signal that transmitting intercom launches, using
In the signal strength detection unit 3 of calculating signal strength, the MCU control unit 4 for judging signal strength size and it is used for
Control the sound output control unit 5 of sound output.The receiving circuit unit 2 and signal strength detection unit 3
Connection, the signal strength detection unit 3 are connect with MCU control unit 4, and the MCU control unit 4 and sound output control are single
Member 5 connects.
Referring to Fig.1.The wireless communication unit 6 being connect with receiving circuit unit 2 is additionally provided in the intercom ontology 1, it should
Wireless communication unit 6 is used for the transmission of signal between two intercoms.The receiving circuit unit 2 (does not show including filter circuit in figure
Go out), amplifying circuit (not shown) and mixting circuit (not shown).
Referring to Figures 1 and 2.The method uttered long and high-pitched sounds of closely conversing is solved, is included the following steps：
(1) in the maximum value and minimum value of 4 preset signal strength of MCU control unit；
(2) receiving circuit unit 2 in intercom ontology 1 receives the signal of transmitting intercom；
(3) signal strength detection unit 3 calculates the intensity of signal；
(4) MCU control unit 4 controls output audio power according to calculated signal strength, be more than when signal strength or
When equal to preset maximum value, then MCU control unit 4 controls sound output control unit 5 and exports minimum audio power.When
When signal strength is less than or equal to preset minimum value, then MCU control unit 4 controls sound output control unit 5 and exports
Maximal audio power.When signal strength is between preset minimum value and maximum value, then MCU control unit 4 controls audio
Output power unit 5 exports intervening gears audio power.Sound output control unit 5 then controls audio output gain
Or control audio frequency power amplifier gain, achieve the purpose that the whole sound output of control.
The wireless communication unit 6 being connect with receiving circuit unit 2, the intercom are additionally provided in the intercom ontology 1
The radio-frequency enabled that signal transmission between ontology 1 and transmitting intercom can be had by oneself by intercom itself is transmitted, or passes through nothing
Line communication unit 6 is transmitted.
The specific implementation mode of the present invention is above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this
Conceive the change for carrying out unsubstantiality to the present invention, the behavior for invading the scope of the present invention should all be belonged to.
Claims (5)
1. the intercom uttered long and high-pitched sounds of closely conversing can be solved, it is characterised in that：Including intercom ontology, set in the intercom ontology
There is master board, which includes for receiving the receiving circuit unit for the signal that transmitting intercom launches, being used for
Calculate the signal strength detection unit of signal strength, the MCU control unit for judging signal strength size and for controlling
The sound output control unit of sound output, the receiving circuit unit are connect with signal strength detection unit, should
Signal strength detection unit is connect with MCU control unit, which connect with sound output control unit.
2. the intercom uttered long and high-pitched sounds of closely conversing can be solved as described in claim 1, it is characterised in that：The intercom ontology
Inside it is additionally provided with the wireless communication unit being connect with receiving circuit unit.
3. the intercom uttered long and high-pitched sounds of closely conversing can be solved as described in claim 1, it is characterised in that：The receiving circuit list
Member includes filter circuit, amplifying circuit and mixting circuit.
The method uttered long and high-pitched sounds 4. the intercom solution as described in claims 1 to 3 is any is closely conversed, it is characterised in that：Including
Following steps：
(1) in the maximum value and minimum value of MCU control unit preset signal strength；
(2) the intrinsic receiving circuit unit of intercom receives the signal of transmitting intercom；
(3) signal strength detection unit calculates the intensity of signal；
(4) MCU control unit controls output audio power according to calculated signal strength, when signal strength is greater than or equal in advance
If maximum value when, then the minimum audio power of MCU control unit control sound output control unit output；Work as signal strength
When less than or equal to preset minimum value, then MCU control unit control sound output control unit exports maximal audio work(
Rate；When signal strength is between preset minimum value and maximum value, then MCU control unit control sound output control
Unit exports intervening gears audio power；Sound output control unit then controls audio output gain or control audio frequency power amplifier
Gain achievees the purpose that the whole sound output of control.
5. as claimed in claim 4 solve the method uttered long and high-pitched sounds of closely conversing, it is characterised in that：In the intercom ontology also
Equipped with wireless communication unit, what the signal transmission between the intercom ontology and transmitting intercom can be had by oneself by intercom itself
Radio-frequency enabled is transmitted, or unit is transmitted by radio communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061149.9A CN108282167A (en) | 2018-01-22 | 2018-01-22 | The intercom uttered long and high-pitched sounds can be solved closely to converse and method that solution is uttered long and high-pitched sounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061149.9A CN108282167A (en) | 2018-01-22 | 2018-01-22 | The intercom uttered long and high-pitched sounds can be solved closely to converse and method that solution is uttered long and high-pitched sounds |
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| Publication Number | Publication Date |
|---|---|
| CN108282167A true CN108282167A (en) | 2018-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810061149.9A Pending CN108282167A (en) | 2018-01-22 | 2018-01-22 | The intercom uttered long and high-pitched sounds can be solved closely to converse and method that solution is uttered long and high-pitched sounds |
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| CN (1) | CN108282167A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019948A (en) * | 2019-05-30 | 2020-12-01 | 北京小米移动软件有限公司 | Intercommunication device communication method, intercommunication device and storage medium |
| CN112188603A (en) * | 2019-07-05 | 2021-01-05 | 北京小米移动软件有限公司 | Power control method, device and storage medium |
| CN114882910A (en) * | 2022-04-29 | 2022-08-09 | 海能达通信股份有限公司 | Method and device for determining near field communication and computer readable storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118887Y (en) * | 2007-11-19 | 2008-09-17 | 科立讯电子(深圳)有限公司 | Intelligent energy-saving inter-speaker |
-
2018
- 2018-01-22 CN CN201810061149.9A patent/CN108282167A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118887Y (en) * | 2007-11-19 | 2008-09-17 | 科立讯电子(深圳)有限公司 | Intelligent energy-saving inter-speaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019948A (en) * | 2019-05-30 | 2020-12-01 | 北京小米移动软件有限公司 | Intercommunication device communication method, intercommunication device and storage medium |
| CN112188603A (en) * | 2019-07-05 | 2021-01-05 | 北京小米移动软件有限公司 | Power control method, device and storage medium |
| CN112188603B (en) * | 2019-07-05 | 2023-07-18 | 北京小米移动软件有限公司 | Power control method, device and storage medium |
| CN114882910A (en) * | 2022-04-29 | 2022-08-09 | 海能达通信股份有限公司 | Method and device for determining near field communication and computer readable storage medium |
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Application publication date: 20180713 |