CN114900208A - Pairing-free technical method for U-section wireless microphone - Google Patents
Pairing-free technical method for U-section wireless microphone Download PDFInfo
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- CN114900208A CN114900208A CN202210502082.4A CN202210502082A CN114900208A CN 114900208 A CN114900208 A CN 114900208A CN 202210502082 A CN202210502082 A CN 202210502082A CN 114900208 A CN114900208 A CN 114900208A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000000737 periodic effect Effects 0.000 claims abstract description 31
- 230000005236 sound signal Effects 0.000 claims abstract description 23
- 230000003321 amplification Effects 0.000 claims abstract description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- H04B5/48—
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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
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- 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 relates to the field of microphones and discloses a U-section wireless microphone pairing-free technical method, which comprises the following steps: the method comprises the following steps that firstly, a microphone is started, and a transmitting terminal starts to transmit a pairing signal; step two, a receiving end on the connecting equipment receives pairing signal pairing sent by a microphone transmitting end; after the connecting equipment is matched with the microphone, a digital signal processor inside a receiving end on the connecting equipment sends a periodic characteristic audio signal, and the characteristic audio signal sends out periodic characteristic audio through a loudspeaker on the equipment; and step four, receiving the periodic characteristic audio signal by the fully directional microphone, and identifying the characteristic signal through the MCU. Compared with the conventional U-section microphone, the microphone pairing method provided by the invention is additionally provided with the fully directional microphone and the signal amplification circuit, and is used for capturing the periodic characteristic audio signal sent by the connecting equipment, so that the microphone can send the pairing signal and receive the characteristic audio signal, and the microphone can be successfully paired when being started.
Description
Technical Field
The invention belongs to the field of microphones, and particularly relates to a matching-free technical method of a U-section wireless microphone.
Background
The information quantity is determined by the frequency of the electromagnetic wave, the lower the frequency, the longer the transmission distance, the smaller the loaded data, the higher the frequency, the shorter the transmission distance, the large data loading quantity, the V wave and the U wave are two directions, in terms of frequency, the V section belongs to the intermediate frequency, and the U section belongs to the high frequency.
With the development of the prior art, the processing of sound is more and more specialized, requiring a long-distance selection of the V-band, requiring a selection of the U-band with sound quality requirements, and the two frequency bands for the wireless microphone have respective advantages and respective disadvantages, which are determined by the user of the frequency band, the physical characteristics of the frequency band, and the adjustment limit of the frequency band.
Because the U section is the high frequency emission wave, so the requirement to electron component is higher than V section by itself, and in the aspect of application, because the U section is not a frequency channel with big multifrequency wave on daily life, so the chance of receiving the interference also significantly reduces.
Most of U-section microphones on the market at present can only receive and transmit in a one-way mode, manual pairing is needed, operation is troublesome, and the U-section microphones are not friendly to users, in the production process of a factory, the U-section microphones can be sold to users only after being paired and detected one by one, production cost is high, automatic pairing is solved by means of communication in a BLE chip mode, but cost is relatively high, and therefore, aiming at the problem, a U-section wireless microphone pairing-free technical method is provided.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a U-section wireless microphone pairing-free technical method, which comprises the following steps: step one, transmitting a pairing signal, starting a microphone, and starting a transmitting terminal to transmit the pairing signal; receiving a pairing signal, wherein a receiving end on the connecting equipment with pre-stored microphone information receives the pairing signal sent by a microphone transmitting end to carry out pairing; step three, sending periodic characteristic audio, namely after the connecting equipment pre-stored with the microphone information is successfully paired with the microphone, sending a periodic characteristic audio signal by a digital signal processor inside a receiving end on the connecting equipment, and sending the periodic characteristic audio by a loudspeaker on the equipment by the periodic characteristic audio signal; and step four, receiving the periodic characteristic audio, wherein the all-directional microphone head at the transmitting end of the microphone receives the periodic characteristic audio signal, identifies the characteristic signal through the MCU, confirms that the signals are paired, and enters a transmission state.
Further, in the second step, the connection device for pre-storing the microphone information is a smart television, a car audio, a smart phone, a mobile device, or a smart sound box with a screen.
Further, the frequency band of the periodic characteristic audio signal in the third step is in the range of 10hz to 20 Khz.
Furthermore, the fully directional microphone receiving the characteristic audio signal in the fourth step is used together with the signal amplifying circuit.
Furthermore, the fully directional microphone and the signal amplification circuit are integrated inside the microphone.
Compared with the prior art, the invention has the beneficial effects that:
compared with a conventional U-section microphone, the microphone pairing method provided by the invention is additionally provided with the fully-directional microphone and the signal amplification circuit, and is used for capturing the characteristic audio signal sent by the connecting equipment, so that the microphone can send the pairing signal and receive the characteristic audio signal, and thus, the pairing is not required to be confirmed by a user manually pressing a key, the microphone is successfully paired automatically when being started, the user experience and the product efficiency are improved, and the returned goods caused by the fact that the user cannot successfully use the microphone due to complex operation are reduced.
When the U-section microphone provided by the method is produced in a factory, the pairing detection time is greatly shortened, the production efficiency is improved, and the total manufacturing cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the process steps of the present invention;
FIG. 2 is a schematic diagram illustrating a process of recognizing a periodic characteristic audio according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the U-segment wireless microphone pairing-free technical method provided by the present embodiment includes the following steps:
the method comprises the following steps that firstly, a pairing signal is transmitted, a U-section microphone to be paired is started, and a transmitting end on the U-section microphone starts to transmit the pairing signal;
receiving a pairing signal, pairing the connection equipment with microphone equipment information prestored in the MCU after a receiving end on the connection equipment receives the pairing signal sent by a microphone transmitting end, and entering the next step after the pairing is successful;
step three, sending periodic characteristic audio, namely after a receiving end on the connecting equipment pre-storing the microphone information is successfully matched with the microphone, sending a periodic characteristic audio signal by a digital signal processor inside the receiving end on the connecting equipment, and sending the periodic characteristic audio by a loudspeaker on the connecting equipment by the periodic characteristic audio signal;
and step four, receiving the periodic characteristic audio signal by a fully-directional microphone at the transmitting end of the microphone, identifying the periodic characteristic signal by the MCU through a Fourier transform algorithm through analog-to-digital conversion, confirming that the periodic characteristic signal is paired, sending a control signal by the MCU, enabling the U-section transmitting chip to enter a transmission state from a pairing state, and identifying the periodic characteristic audio as shown in the flow chart 2.
Because the transmitting end of the U-section microphone can only send signals and can not receive signals, whether the receiving end of the connecting device is successfully paired or not can not be known, and similarly, the receiving end of the U-section microphone can only receive signals and can not send signals, the transmitting end of the connecting device can not be informed of successful pairing and needs manual confirmation of a user.
In the above process, wherein:
in the second step, the connection devices for pre-storing the microphone information are of two types: firstly, a smart television or an automobile-mounted sound system with a digital audio interface, or a smart phone or a smart tablet computer, a PC computer or a mobile device, or a smart sound box with a screen or a smart sound box and the like; and secondly, the audio equipment with the traditional analog audio interface.
The frequency range of the periodic characteristic audio signal in the third step is 10hz-20Khz, which is inconsistent with the wave band range of the U wave band, and since the identified frequency width is 10hz-20Khz, the key for identifying the periodic characteristic audio signal is the specific frequency and the specific periodicity.
In the fourth step, the fully directional microphone receiving the characteristic audio signal is used together with the signal amplification circuit, the signal amplification circuit amplifies the input weak signal to a required amplitude value and a signal which is consistent with the change rule of the original input signal, namely, the signal is amplified without distortion.
Regarding the receiving end of the microphone:
the receiving end of the microphone is a DONGLE inserted at the equipment end, and is separated from the microphone, and the U-section microphone receiver mainly comprises the following components: a signal antenna; a U-section receiving chip; digital signals or analog signals corresponding to the U-section receiving chip; after the U section receives the signal, the signal can be directly output to equipment or a DSP is added for signal processing and then output; the analog output is an analog audio interface, and the digital output can be a plug such as USB-A or TYPE-C or MICRO-USB.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the idle place of the device, all the electric devices and the drivers matched with the electric devices are arranged, and all the driving parts, which refer to the power element, the electric devices and the adaptive power supply, are connected through the conducting wires by the person skilled in the art, and specific connecting means refer to the following expressions that the electric connection is completed among the electric devices in sequence, and the detailed connecting means are well known in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A U-segment wireless microphone pairing-free technical method is characterized by comprising the following steps:
firstly, transmitting a pairing signal, starting a microphone, and starting a transmitting terminal to transmit the pairing signal;
receiving a pairing signal, wherein a receiving end on the connecting equipment with pre-stored microphone information receives the pairing signal sent by a microphone transmitting end to carry out pairing;
step three, sending periodic characteristic audio, namely after the connecting equipment pre-storing the microphone information is successfully matched with the microphone, sending a periodic characteristic audio signal by a digital signal processor inside a receiving end on the connecting equipment, and sending the periodic characteristic audio by a loudspeaker on the equipment by the periodic characteristic audio signal;
and step four, receiving the periodic characteristic audio signal by a fully-directional microphone at the transmitting end of the microphone, then performing analog-to-digital conversion, identifying the periodic characteristic signal by the MCU through a Fourier transform algorithm, confirming that the periodic characteristic signal is paired, sending a control signal by the MCU, and enabling the U-section transmitting chip to enter a transmission state from a pairing state.
2. The U-segment wireless microphone pairing-free technical method according to claim 1, wherein the U-segment wireless microphone pairing-free technical method comprises the following steps: and in the second step, the connecting device for pre-storing the microphone information is an intelligent television or an automobile sound box or an intelligent mobile phone or a mobile device or an intelligent sound box with a screen or an audio device with a transmission analog audio interface.
3. The U-segment wireless microphone pairing-free technical method according to claim 1, wherein the U-segment wireless microphone pairing-free technical method comprises the following steps: the frequency band of the periodic characteristic audio signal in the third step is in the range of 10hz to 20 Khz.
4. The U-segment wireless microphone pairing-free technical method according to claim 1, wherein the U-segment wireless microphone pairing-free technical method comprises the following steps: in the fourth step, the fully directional microphone for receiving the periodic characteristic audio signal is matched with a signal amplifying circuit.
5. The pairing-free technical method of the U-segment wireless microphone according to claim 4, wherein the pairing-free technical method comprises the following steps: the fully directional microphone and the signal amplification circuit are integrated in the microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210502082.4A CN114900208A (en) | 2022-05-09 | 2022-05-09 | Pairing-free technical method for U-section wireless microphone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210502082.4A CN114900208A (en) | 2022-05-09 | 2022-05-09 | Pairing-free technical method for U-section wireless microphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117319886A (en) * | 2023-11-29 | 2023-12-29 | 深圳市掌锐电子有限公司 | Method and system for reducing audio path time delay of Android system |
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| US20140153747A1 (en) * | 2012-12-04 | 2014-06-05 | Matteo Contolini | System and method for pairing a command device incorporating a microphone to a remotely controlled medical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117319886B (en) * | 2023-11-29 | 2024-03-12 | 深圳市掌锐电子有限公司 | Method and system for reducing audio path time delay of Android system |
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