CN114339712B - Pairing method and device of wireless microphone and wireless microphone management system - Google Patents
Pairing method and device of wireless microphone and wireless microphone management system Download PDFInfo
- Publication number
- CN114339712B CN114339712B CN202111642629.2A CN202111642629A CN114339712B CN 114339712 B CN114339712 B CN 114339712B CN 202111642629 A CN202111642629 A CN 202111642629A CN 114339712 B CN114339712 B CN 114339712B
- Authority
- CN
- China
- Prior art keywords
- frequency band
- wireless
- wireless microphone
- target
- pairing
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004891 communication Methods 0.000 claims abstract description 26
- 238000005516 engineering process Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000010845 search algorithm Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The application relates to a pairing method and device of wireless microphones and a wireless microphone management system; the method comprises the following steps: acquiring a wireless Bluetooth mac address of a target wireless microphone through terminal equipment; establishing wireless communication pairing connection between the terminal equipment and a target wireless microphone according to the wireless Bluetooth mac address; scanning a U section in a scene to obtain a current idle frequency band, and obtaining a target frequency band from the idle frequency band; the target frequency band is distributed to the target wireless microphone, and terminal equipment paired with the target wireless microphone is informed of adopting the target frequency band to transmit data through a Bluetooth communication protocol; further, the server manages the frequency band connection condition of all the terminal devices and the microphone by adopting the internet technology; according to the technical scheme, the pairing speed of the wireless microphone and the terminal equipment is realized, the pairing efficiency is improved, the automatic frequency hopping technology is combined, and the problem of frequency band interference caused by the same frequency/adjacent frequency is effectively solved.
Description
Technical Field
The application relates to the technical field of entertainment equipment, in particular to a wireless microphone pairing method and device and a wireless microphone management system.
Background
Currently, wireless microphones are widely used in many scenarios, such as, for example, in activities, conference sites, KTV rooms, etc.; the wireless microphone mainly includes an FM wireless microphone, a VHF wireless microphone, a UHF wireless microphone, a bluetooth wireless microphone, and the like.
In the conventional technology, the pairing between the wireless microphone and the terminal device is realized by adopting a custom chip to send information of the device so as to realize the pairing between the terminal device and the microphone, the pairing between the wireless microphone and the receiver of the terminal device is realized by adjusting the transmitting frequency of the wireless microphone and the receiving frequency of the receiver, and the pairing between the wireless microphone and the microphone is realized by searching identity information carried by a connection signal sent by the terminal device.
The technical scheme is generally suitable for a single-to-single pairing process, when the wireless microphone and the terminal equipment are used in a scene, the wireless microphone and the terminal equipment are in a multi-to-many relation, the process is particularly complex, and in the pairing process, disordered pairing errors are easy to occur, particularly when the wireless microphone and the terminal equipment are required to be switched for use, a user needs to perform complex operation to switch and connect, and the same-frequency adjacent frequency interference is easy to exist among the plurality of equipment, so that the pairing efficiency and the use effect are influenced.
Disclosure of Invention
In order to solve one of the above technical drawbacks, the present application provides a wireless microphone pairing method and device, and a wireless microphone management system, so as to improve the pairing efficiency and use effect of the wireless microphone.
A pairing method of wireless microphones, comprising:
acquiring a line Bluetooth mac address of a target wireless microphone through terminal equipment;
establishing wireless communication pairing connection between the terminal equipment and a target wireless microphone according to the line Bluetooth mac address;
Scanning a U section in a scene to obtain a current idle frequency band, and selecting a target frequency band from the idle frequency band which is furthest away from the idle frequency band;
And distributing the target frequency band to the target wireless microphone, and informing terminal equipment paired with the target wireless microphone to transmit data by adopting the target frequency band through a Bluetooth communication protocol.
In one embodiment, the pairing method of wireless microphones further includes:
acquiring position information of a target wireless microphone;
And associating and recording the frequency band ID and the position information of the target frequency band with the line Bluetooth mac address of the target wireless microphone.
In one embodiment, obtaining location information of a target wireless microphone includes:
Acquiring position information based on the wireless communication and by using a positioning chip built in a target wireless microphone; or generating virtual position information of the target wireless microphone according to the signal continuity of each frame between the terminal equipment and the target wireless microphone.
In one embodiment, obtaining, by the terminal device, a line bluetooth mac address of the target wireless microphone includes:
Scanning a two-dimensional code bound on a target wireless microphone through a camera on the terminal equipment; and acquiring the line Bluetooth mac address of the target wireless microphone by identifying the content information corresponding to the two-dimensional code.
In one embodiment, establishing a wireless communication pairing connection between the terminal device and a target wireless microphone according to the line bluetooth mac address includes:
acquiring Bluetooth equipment information of the target microphone according to the wireless Bluetooth mac address;
And controlling a first Bluetooth module of the terminal equipment to scan surrounding Bluetooth equipment, and establishing Bluetooth pairing connection between the terminal equipment and a target wireless microphone when the Bluetooth equipment information is searched.
In one embodiment, if the scan does not currently have an idle frequency band, the method further includes:
acquiring the frequency bands used by all current online wireless microphones;
calculating a target shared frequency band according to the channel parameters of each frequency band and the position information of the target wireless microphone;
and distributing the target common frequency band to the target wireless microphone for multiple access.
In one embodiment, calculating the target common frequency band according to the channel parameters of the current frequency bands and the position information of the target wireless microphone includes:
Calculating the power sum of the frequency bands according to the channel parameters of the current frequency bands, and selecting a shared frequency band to be added according to the power sum;
Respectively calculating the position distance between each wireless microphone currently on line in the shared frequency band to be added and the target wireless microphone;
And selecting the frequency band to be shared used by the wireless microphone with the smallest sum of the power and the largest position distance as the target shared frequency band.
In one embodiment, calculating a power sum of the frequency bands according to channel parameters of the current frequency bands, and selecting a to-be-added common frequency band according to the power sum includes:
Initializing all frequency bands of the current U section;
demodulating and decoding each channel of each frequency band based on a nonlinear orthogonal multiple access technology to obtain a demodulation signal of each independent wireless microphone;
Calculating the maximum band capacity of the frequency band according to the demodulation signal;
And calculating the power sum of the frequency band occupied sections of the frequency bands, and selecting the frequency band with the power sum smaller than the maximum frequency band capacity as the shared frequency band to be added.
In one embodiment, the pairing method of wireless microphones further includes:
scanning the U section in the scene, and calculating the signal to noise ratio in each frequency band;
If the signal-to-noise ratio exceeds a signal-to-noise ratio threshold, acquiring all online wireless microphones in the frequency band;
And reassigning all online wireless microphones in the frequency band to a to-be-added common frequency band with the minimum sum of power.
In one embodiment, if all the frequency bands of the U-band are full, the method further includes:
Acquiring wireless Bluetooth mac addresses of all online wireless microphones of a current association record and frequency band IDs of frequency bands used by the wireless Bluetooth mac addresses;
Disconnecting the pairing connection of the wireless microphone and the corresponding terminal equipment and releasing the frequency band resource;
and accessing the target wireless microphone by using the released frequency band resource.
A pairing device of wireless microphones, comprising:
The scanning module is used for acquiring the wireless Bluetooth mac address of the target wireless microphone through the terminal equipment;
The pairing module is used for establishing wireless communication pairing connection between the terminal equipment and the target wireless microphone according to the wireless Bluetooth mac address;
The searching module is used for scanning the U-section in the scene to obtain a current idle frequency band and selecting a target frequency band from the idle frequency band;
And the allocation module is used for allocating the target frequency band to the target wireless microphone and informing the terminal equipment matched with the target wireless microphone to transmit data by adopting the target frequency band through a Bluetooth communication protocol.
A wireless microphone management system, comprising: the system comprises a server, a U-section space scanning device, a plurality of terminal devices and a plurality of wireless microphones, wherein the U-section space scanning device is connected with the server; wherein, the server is respectively connected with the terminal equipment; each terminal device is connected with the wireless microphone through wireless communication;
the server is used for executing the steps of the pairing method of the wireless microphone.
In one embodiment, the terminal device includes: the device comprises a first Bluetooth module, a first U-section module and scanning equipment; the wireless microphone comprises a second Bluetooth module and a second U-section module; wherein, the wireless microphone is provided with a two-dimensional code; the scanning equipment is used for scanning the two-dimensional code to obtain a wireless Bluetooth mac address of the wireless microphone, and the first Bluetooth module is used for pairing with the second Bluetooth module and transmitting instructions through a Bluetooth protocol; the first U-section module is used for carrying out data transmission with the second U-section module.
The technical scheme of the application has the following beneficial effects:
the method simplifies the operation flow of the user, avoids excessive complex operations of the user, realizes the pairing quick connection of the wireless microphone and the terminal equipment particularly in a multi-equipment sharing use scene, and greatly improves the pairing efficiency of the wireless microphone.
And the non-orthogonal multiple access technology is used for optimally distributing the frequency bands used by the paired wireless microphones, a plurality of addresses are accessed on the same frequency band resource, and the frequency bands are distributed to a plurality of wireless microphones for use, so that the frequency spectrum efficiency and the access quantity of the wireless microphones are improved.
Based on the internet technology, the server is utilized to uniformly manage all wireless microphones and all frequency band allocation and use, when external interference is found, the frequency band is automatically switched and the frequency is automatically hopped, so that the interference of multiple microphones of a multi-terminal device and external same-frequency/adjacent-frequency signals is prevented, the clear frequency band state can be displayed for a user, and the user experience is improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a hardware environment diagram of a wireless microphone management system;
Fig. 2 is a schematic structural diagram of a terminal device and a wireless microphone of an embodiment;
FIG. 3 is a flow chart of a pairing method of wireless microphones of an embodiment;
FIG. 4 is a code scanning flow diagram of one embodiment;
FIG. 5 is a flow chart for selecting a common frequency band;
Fig. 6 is a schematic structural diagram of a pairing device of a wireless microphone according to an embodiment.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, but do not preclude the presence or addition of one or more other features, integers, steps, operations.
The application provides a wireless microphone pairing method and device and a wireless microphone management system, wherein the wireless microphone management system can adopt the wireless microphone pairing method to pair and manage wireless microphones; in order to facilitate description of the embodiments, a technical solution of a wireless microphone management system of an embodiment is provided below, where the technical solution is applied to a pairing usage scenario of a plurality of terminal devices and wireless microphones, and the terminal devices may refer to KTV jukeboxes, large screen entertainment devices, conference systems, and other device terminals applying a plurality of wireless microphones.
Referring to fig. 1, fig. 1 is a hardware environment diagram of a wireless microphone management system, where the hardware environment diagram includes a server, a plurality of terminal devices, and a plurality of wireless microphones, and the server is further connected to a U-section space scanning device (such as a camera); the server is respectively connected with the terminal equipment; the U-section space scanning equipment can be used in a scene, can detect the use state of the U-section in the scene in real time, and sends the detected frequency band information to the server, and each terminal equipment is connected with the wireless microphone through wireless communication; according to the wireless microphone management system, each terminal device can be connected with a plurality of wireless microphones, each terminal device is connected to the server, the server uniformly manages the connected wireless microphones, and each wireless microphone can be connected with any terminal device, so that the wireless microphone management system realizes free pairing of the plurality of wireless microphones and the plurality of terminal devices in a scene, provides more convenient pairing connection service for users based on a wireless (Bluetooth) automatic connection technology, and further realizes more optimized pairing efficiency and use effect; the embodiment of the application adopts the Bluetooth technology as pairing, and of course, the function can be realized by adopting other transmission means in a simple replacement mode.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a terminal device and a wireless microphone according to an embodiment, the terminal device includes: the device comprises a first Bluetooth module, a first U-section module and scanning equipment; the wireless microphone comprises a second Bluetooth module and a second U-section module; wherein, the wireless microphone is provided with a two-dimensional code; the scanning device is used for scanning a two-dimensional code to obtain a mac Address (MEDIA ACCESS Control Address ) of the wireless device of the wireless microphone; the first U-section module is used for carrying out data transmission with the second U-section module.
According to the structure of the terminal equipment and the wireless microphone, when the pairing is used, the operation flow is simplified, excessive complex operation of a user is avoided, automatic pairing of Bluetooth based on the code scanning technology is realized, particularly in a multi-equipment sharing use scene, the pairing quick connection of the wireless microphone and the terminal equipment is realized, and the pairing efficiency of the wireless microphone is greatly improved.
The following describes a pairing method of wireless microphones of the present application, and it should be noted that the pairing method of wireless microphones may be applied to the wireless microphone management system in the foregoing embodiment, and of course may also be applied to other similar wireless microphone management systems.
Referring to fig. 3, fig. 3 is a flowchart of a pairing method of wireless microphones according to one embodiment, where the pairing method mainly includes:
S1, acquiring a wireless Bluetooth mac address of a target wireless microphone through a terminal device.
Here, a DM (Data Matrix) code technology can be adopted to design a wireless bluetooth mac address for each wireless microphone, a unique identification two-dimensional code is produced based on the wireless bluetooth mac address, the two-dimensional code is pasted/printed on the bottom of the wireless microphone, binding is achieved, and a server scans and identifies the two-dimensional code technology by using a camera of a terminal device to scan the code, so that the wireless bluetooth mac address of a target wireless microphone is rapidly obtained.
Specifically, the wireless bluetooth mac addresses corresponding to the wireless microphones are pre-stored in the server, referring to fig. 4, fig. 4 is a code scanning flow chart of an embodiment, a DM code design technology is adopted to record the mac address of each wireless microphone, each time, only the two-dimensional code of the wireless microphone is required to be aligned to the code scanning area of the terminal device, the two-dimensional code of the target wireless microphone is obtained through code scanning, the wireless bluetooth mac address is obtained through analysis, the target wireless microphone to be connected is determined according to the wireless bluetooth mac address, for the two-dimensional code identification technology, the image identification technology is adopted through camera scanning, the image processing is firstly carried out, the position of the two-dimensional code is positioned, the geometric correction is carried out through the size of the original two-dimensional code, and the two-dimensional code is decoded.
And S2, establishing wireless communication pairing connection between the terminal equipment and the target wireless microphone according to the wireless Bluetooth mac address.
In one embodiment, when in pairing connection, firstly, acquiring Bluetooth device information of a target microphone (namely device information of a first Bluetooth module) according to a wireless Bluetooth mac address; and then the first Bluetooth module of the terminal equipment is controlled to scan surrounding Bluetooth equipment, and when the Bluetooth equipment information is searched, bluetooth pairing connection between the terminal equipment and the target wireless microphone is established, namely, bluetooth pairing connection between the first Bluetooth module and the second Bluetooth module is established.
Specifically, the wireless bluetooth mac address obtained by code scanning is consistent with the wireless microphone recorded in the server, and the server sends a signal to inform a second bluetooth module connected with the wireless microphone through a first bluetooth module of the terminal equipment, so that the aim of automatic and quick connection pairing is achieved, after the bluetooth pairing is completed, gatt protocols can be adopted for communication, the terminal equipment can send key instructions to the wireless microphone, the allocated frequency band selection result and the like, and quick pairing and audio high-efficiency transmission control are realized based on the low-power-consumption bluetooth technology, so that the efficient communication function between the terminal equipment and the wireless microphone is realized.
In addition, if the bluetooth pairing fails due to the damage of the two-dimensional code or other abnormal reasons, the bluetooth name (number) corresponding to the wireless bluetooth mac address of the wireless microphone can be searched and displayed through the device, and then the corresponding wireless microphone can be selected to be connected on the terminal device according to manual operation.
S3, scanning the U-section in the scene to obtain a current idle frequency band, and selecting a target frequency band from the idle frequency band.
After successful pairing, the U-section space scanning equipment is utilized to scan the U-section in the scene, the current idle frequency band is searched, the first U-section module of the terminal equipment is triggered to select a proper idle frequency band, and the first U-section module is communicated with the second U-section module of the wireless microphone to obtain low-interference transmission audio.
Specifically, the server scans the U-band (600 MHz-700 MHz) in the scene through the U-band space scanning equipment, the frequency band in an idle state in the current U-band can be obtained through scanning, the current idle frequency band is obtained, the server obtains and records the frequency band ID of the idle frequency band, then a target frequency band farthest from the used frequency band is selected from the idle frequency band, under the general condition, the idle frequency band farthest from the used frequency band is selected, of course, the suitable frequency band can be selected for distribution under the special condition according to the actual condition, and the occurrence of adjacent frequency interference can be effectively reduced or avoided through being far away from the used frequency band; after the frequency band is allocated, the frequency band ID of the target frequency band and the wireless Bluetooth mac address of the target wireless microphone are associated and recorded at the same time, so that the server can manage conveniently.
S4, distributing the target frequency band to the target wireless microphone, and informing the terminal equipment paired with the target wireless microphone to adopt the target frequency band to transmit data through a Bluetooth communication protocol.
The server distributes the target frequency band to the target wireless microphone, selects a corresponding frequency band for communication through the first U-section module of the terminal equipment, and simultaneously sends a notification to the second Bluetooth module through the first Bluetooth module to notify the second U-section module of the wireless microphone to also select the corresponding frequency band for communication, so that efficient data transmission from the wireless microphone to the terminal equipment is realized.
According to the pairing method of the wireless microphone, the wireless microphone is centrally managed to be paired and connected in different terminal devices and used for distributing U sections through the server, when a user uses the wireless microphone, the user only needs to scan the two-dimension code of the wireless microphone on any terminal device, and all the paired connection and U section distribution use can be completed by the device.
In order to make the technical solution of the present application clearer, further embodiments are described below.
In one embodiment, when managing the U-band, the server performs an optimized allocation on a frequency band used by the paired wireless microphones, and in order to further improve spectrum efficiency and access quantity of the wireless microphones, if no idle frequency band exists currently in scanning, a non-orthogonal multiple access technology is used to implement multiple address accesses on the same frequency band resource, and the frequency band is allocated to multiple wireless microphones for use.
Accordingly, when the frequency band used by the wireless microphone is allocated, if no idle frequency band exists currently, the allocation is performed by adopting the following method, which specifically comprises the following steps:
(1) The frequency band used by all the wireless microphones on line is acquired.
After each wireless microphone allocates a frequency band, the server associates the wireless Bluetooth mac address and the frequency band ID thereof, so that the wireless microphones connected with all the current terminal devices and the frequency band information used by the wireless microphones can be queried.
(2) And calculating the target shared frequency band according to the channel parameters of the current frequency bands and the position information of the target wireless microphone.
In one embodiment, the appropriate frequency band can be selected for allocation by calculating the sum of the power of the frequency bands and the position information of each wireless microphone, so that the co-frequency/adjacent-frequency interference is avoided and the working stability of the system after the allocated frequency band is ensured.
Accordingly, the method for calculating the target common frequency band may include:
2.1 Calculating the power sum of the frequency bands according to the channel parameters of the current frequency bands, and selecting the shared frequency band to be added according to the power sum.
For selecting a common frequency band to be added, referring to fig. 5, fig. 5 is a flowchart of selecting a common frequency band, and the process may include the following steps:
s101, initializing all frequency bands of the current U section.
Specifically, all frequency bands are initialized to be null, namely, a microphone-free connection state is achieved.
S102, based on the nonlinear orthogonal multiple access technology, demodulating and decoding each channel of each frequency band to obtain a demodulation signal of each independent wireless microphone.
For example, setting the frequency bands as U-segments, assuming that each frequency band adopts a nonlinear orthogonal multiple access technology, so that each frequency band can be set with a plurality of wireless microphone addresses with a capacity of R at most, demodulating and decoding each channel to obtain corresponding data by deleting the interference technology step by step, and the decoding function is as follows:
Wherein p i is the power allocation value of the ith wireless microphone in the frequency band allocated to the frequency band, and h i is the channel coefficient of the ith wireless microphone; when the signal data x i of the ith wireless microphone is detected, the other signal data are considered as noise, the signal data y i of the remaining wireless microphones of the same frequency band are obtained by subtracting each time, and so on, the demodulated signal of each independent wireless microphone is obtained.
S103, calculating the maximum band capacity of the frequency band according to the demodulation signal.
Specifically, after obtaining the demodulation signal, inquiring the frequency band IDs of all the current U sections recorded by the server, calculating the marking state of each frequency band (0/1/2/3 …/R,0 represents wireless microphone connection, 1 represents connection of 1 wireless microphone) by adopting a sequential forward search algorithm, and defining the maximum frequency band capacity R according to the following functions:
where N is the maximum band range.
And s104, calculating the power sum of the frequency band occupation segments of each frequency band, and selecting the frequency band with the power sum smaller than the maximum frequency band capacity as the shared frequency band to be added.
Specifically, the power sum of the band occupied segments is preferentially calculated:
If the power sum is smaller than the capacity R, the frequency band can be selected as a shared frequency band to be added, and the shared frequency band can be used for adding a wireless microphone; and sorting the calculated sumval, selecting any frequency band from the minimum in-band power and minval =min (sumvali) as a common frequency band which can be allocated to the target wireless microphone.
2.2 Respectively calculating the position distance between each wireless microphone currently on line with the shared frequency band to be added and the target wireless microphone.
For the position distances, the position information of each wireless microphone can be used for calculation, and the three-dimensional Euclidean distance between each two positions is calculated according to the position information record of each microphone:
As an embodiment, when the position information of the wireless microphone is acquired, the position information of the wireless microphone may be acquired through the position information stored in the server.
For example, after any one target wireless microphone is accessed, the server records the position information thereof, and associates and records the frequency band ID and the position information of the target frequency band with the wireless bluetooth mac address of the target wireless microphone, so that the wireless bluetooth mac address is used when the shared frequency band and the frequency hopping are allocated subsequently, and the following two ways can be adopted for the acquisition mode of the position information: one is based on wireless communication and obtains position information using a positioning chip built in a target wireless microphone; the other is to generate virtual position information of the target wireless microphone according to the signal continuity of each frame between the terminal device and the target wireless microphone.
For the generation of the virtual position information, the continuity judgment can be performed according to the signal continuity judgment, wherein the continuity judgment is as follows:
a＝(a1,a2,a3,...am)
Wherein a is the data of each frame of the signal, a continuity judgment threshold value threshold is set, a value above this threshold range is considered to be a disconnection, otherwise, setting virtual position information as a position with d=10m (custom distance) from the terminal equipment according to the maximum Bluetooth connection range; thus, by manually connecting the bluetooth paired wireless microphones, the virtual position can be set according to the continuity of the received signal, as in (x 3,0,0),x3 is the result of the continuity judgment).
2.3 The frequency band to be shared used by the wireless microphone with the smallest sum of power and the largest position distance is selected as the target shared frequency band.
For example, in the same frequency band, multiple microphones with total capacity of maximum R are allocated, each time allocation is performed, a microphone with a farther geographic position is preferentially selected to allocate a similar frequency band, a wireless microphone with a closer position is allocated a frequency band with a farthest interval, for example, in a U-band, the position of the terminal device is (10, 15, 1), the position of the wireless microphone 1 is (5, 10, 1), the position of the wireless microphone 2 is (1, 1), and then the following calculation is performed according to the euclidean distance: the distance of the wireless microphone 1 is 7.0710, the distance of the wireless microphone 2 is 16.1433, the frequency band allocated to the wireless microphone 1 is 600MHz, the allocated power value is 0.2, the frequency band allocation of the wireless microphone 2 is 700MHz, and the allocated power value is 0.6, thereby preventing co-channel/adjacent channel interference.
(3) And allocating the target common frequency band to the target wireless microphone for multiple access.
Specifically, the target wireless microphone is accessed to the target common frequency band, and meanwhile, the frequency band ID and the position information of the target frequency band are associated with the wireless Bluetooth mac address of the target wireless microphone and recorded.
In one embodiment, in order to prevent co-channel/adjacent channel interference from occurring in the frequency band allocated to the wireless microphone in use, the method may further include the following steps:
(1) And scanning the U section in the scene, and calculating the signal to noise ratio in each frequency band.
Specifically, the U-section space scanning device scans the scene, if abnormal signal interference exists at this time, whether the interference is derived from the local device can be judged through an s101-s104 calculation mode, if not, the channel interference state is analyzed by calculating the signal-to-noise ratio SNR, and the SNR is calculated as follows:
Where x power is signal power, noise power is noise power; and filtering one by calculating the signal-to-noise ratio SNR of each channel, so that the interference condition of all channels can be obtained.
(2) If the signal-to-noise ratio exceeds the signal-to-noise ratio threshold, acquiring all online wireless microphones in the frequency band; and reassigning all online wireless microphones in the frequency band to a to-be-added common frequency band with the minimum sum of power.
Specifically, if the signal-to-noise ratio is found to be higher than the set threshold thresholdsnr, then the channel is considered to have an interfering signal, and all signals in the channel are reassigned to the frequency channel minval with the smallest power and the smallest frequency channel.
According to the technical scheme, the frequency hopping function is realized, channel power and the minimum frequency band in the frequency band can be reselected according to the frequency band selection algorithm, a frequency hopping instruction is sent to inform the first Bluetooth module of the terminal equipment, the first Bluetooth module is reported to the server, and then frequency hopping is carried out.
As an embodiment, for the frequency hopping opportunity, in order to avoid the influence of disconnecting the wireless microphone connection to the user during the frequency hopping, before the frequency hopping, the working states of all the microphones in the channel are detected first, if the working states are not working, the frequency hopping can be applied, the frequencies of all the microphones in the channel are switched to a new frequency band, if the original 700MHz is switched to an idle frequency band 650MHz, the frequency band is far away from the frequency band as far as possible, the external co-frequency/adjacent frequency interference is reduced to the minimum, the frequency hopping operation is reported to the server, and the current idle frequency band and the occupied frequency band are displayed on the device user interface for the user to review.
In one embodiment, if the number of wireless microphones currently connected exceeds the number of frequency bands, an interface may be provided through the server at this time, and the user may perform a manual intervention operation according to the related operation input by the interface in order to better manage the frequency bands used by the wireless microphones.
Accordingly, the server determines that if all the frequency band capacities of the U-segment are full, the following operations may be performed:
(1) And acquiring wireless Bluetooth mac addresses of all online wireless microphones of the current association record and frequency band IDs of the frequency bands used by the wireless Bluetooth mac addresses.
The user can obtain the use conditions of all online wireless microphones and all frequency bands of the U section from the server through the operation interface.
(2) Disconnecting the pairing connection of the wireless microphone and the corresponding terminal equipment and releasing the frequency band resource; and accessing the target wireless microphone by using the released frequency band resources.
The user can choose to disconnect some wireless microphones according to the requirement, so that the frequency band resources of the pairing connection of part of terminal equipment can be released, and then the target wireless microphone is accessed.
In the above embodiment, the user may also select the frequency band to be paired manually by displaying the idle frequency band on the device interface, the frequency band to be shared or the frequency band to be disconnected, and manually allocate the frequency band to the target wireless microphone.
In one embodiment, in the technical scheme of the application, after the wireless microphone and the terminal equipment are paired, the wireless microphone and the terminal equipment can be paired again, the original pairing connection is terminated, so that sharing of the wireless microphone can be realized, any terminal equipment can be paired with any microphone, and the connection and disconnection related information of each microphone is uploaded to the server, and the server can record the connection state and the pairing connection information of each wireless microphone.
As described above, the disconnection pairing of the wireless microphone is divided into two disconnection modes of active disconnection and passive disconnection, and in the active disconnection mode: and in the state that the wireless microphone is in the paired state, the user actively clicks a button for 'disconnecting the pairing', the terminal equipment actively disconnects the pairing with the wireless microphone, and the wireless Bluetooth mac address of the wireless microphone and the link related record information thereof are deleted from the database of the server. In the passive off mode: when the wireless microphone exceeds the connection range, power failure, high-intensity interference and other non-user active disconnection pairing conditions, after the wireless microphone is passively disconnected, the terminal equipment continuously scans Bluetooth equipment of the wireless microphone, and when the wireless Bluetooth mac address of the microphone recorded in the database is scanned, the wireless microphone is automatically paired again, so that automatic reconnection of the wireless microphone is realized.
According to the technical scheme of the embodiments, the wireless microphone adopts low-power consumption Bluetooth pairing, and the wireless Bluetooth mac address of the wireless microphone is marked by adopting the two-dimensional code on the wireless microphone, so that accurate and rapid switching pairing between multiple terminal devices is facilitated; meanwhile, the server is utilized to uniformly manage all wireless microphones and each frequency band to be allocated and used, the connection state and frequency band information of each wireless microphone are recorded, the connection state of each terminal device and the matched microphone is recorded, when external interference is found, an automatic frequency band selection function can be started instantly, the frequency band is automatically switched to carry out automatic frequency hopping, so that interference of multiple microphones of the multi-terminal device and external same frequency/adjacent frequency signals can be prevented, the frequency band can be automatically switched to a clean and interference-free frequency band, clear frequency band states are displayed for users, user experience is improved, and users can select channels for transmitting audio of the automatic and manual allocated frequency bands to ensure tone quality of the microphones.
An embodiment of a pairing device of wireless microphones is set forth below.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a pairing device of a wireless microphone according to an embodiment, including:
The scanning module is used for acquiring the wireless Bluetooth mac address of the target wireless microphone through the terminal equipment;
the pairing module is used for establishing wireless communication pairing connection between the terminal equipment and the target wireless microphone according to the wireless Bluetooth mac address;
The searching module is used for scanning the U-section in the scene to obtain a current idle frequency band and selecting a target frequency band from the idle frequency band;
And the allocation module is used for allocating the target frequency band to the target wireless microphone and informing the terminal equipment paired with the target wireless microphone to adopt the target frequency band to transmit data through a Bluetooth communication protocol.
The pairing device for wireless microphone in this embodiment may execute a pairing method for wireless microphone provided in the embodiment of the present application, and its implementation principle is similar, and actions executed by each module in the pairing device for wireless microphone in each embodiment of the present application correspond to steps in the pairing method for wireless microphone in each embodiment of the present application, and detailed functional descriptions of each module in the pairing device for wireless microphone may be specifically referred to descriptions in the corresponding pairing method for wireless microphone shown in the foregoing, which are not repeated herein.
The present application also provides a computer device comprising:
One or more processors;
A memory;
One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to: the pairing method of wireless microphones according to any of the above-described embodiments is performed.
The present application also provides a computer readable storage medium storing at least one instruction, at least one program, a set of codes, or a set of instructions, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded by the processor and performing the pairing method of wireless microphones of any of the embodiments above.
The pairing device, the computer equipment and the computer readable storage medium of the wireless microphone, which are disclosed by the embodiment, simplify the operation flow of a user by Bluetooth automatic pairing based on the code scanning technology, avoid excessive complex operations of the user, realize the pairing quick connection of the wireless microphone and the terminal equipment particularly in a multi-equipment sharing use scene, and greatly improve the pairing efficiency of the wireless microphone.
And the non-orthogonal multiple access technology is used for optimally distributing the frequency bands used by the paired wireless microphones, a plurality of addresses are accessed on the same frequency band resource, and the frequency bands are distributed to a plurality of wireless microphones for use, so that the frequency spectrum efficiency and the access quantity of the wireless microphones are improved.
And the server is utilized to uniformly manage all wireless microphones and all frequency band allocation and use, and when external interference is found, the frequency band is automatically switched and the frequency is automatically hopped, so that the interference of multiple microphones of the multi-terminal equipment and external co-frequency/adjacent frequency signals is prevented, a clear frequency band state is displayed for a user, and the user experience is improved.
The foregoing is only a partial embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (11)
1. A method of pairing wireless microphones, comprising:
Acquiring a wireless Bluetooth mac address of a target wireless microphone through terminal equipment;
Establishing wireless communication pairing connection between the terminal equipment and a target wireless microphone according to the wireless Bluetooth mac address;
Scanning a U section in a scene to obtain a current idle frequency band, and selecting a target frequency band from the idle frequency band; if no idle frequency band exists currently, acquiring frequency bands used by all wireless microphones on line currently, calculating the power sum of the frequency bands according to channel parameters of all the current frequency bands, selecting a shared frequency band to be added according to the power sum, respectively calculating the position distance between each wireless microphone on line currently of the shared frequency band to be added and a target wireless microphone, and selecting the shared frequency band used by the wireless microphone with the minimum power sum and the maximum position distance as the target shared frequency band;
And allocating the target frequency band to the target wireless microphone or allocating the target common frequency band to the target wireless microphone for multiple access, and informing the terminal equipment paired with the target wireless microphone to adopt the target frequency band to transmit data through a Bluetooth communication protocol.
2. The method of pairing wireless microphones of claim 1, further comprising:
acquiring position information of a target wireless microphone;
And associating and recording the frequency band ID and the position information of the target frequency band with the wireless Bluetooth mac address of the target wireless microphone.
3. The pairing method of wireless microphones according to claim 2, wherein acquiring location information of a target wireless microphone includes:
Acquiring position information based on the wireless communication and by using a positioning chip built in a target wireless microphone; or generating virtual position information of the target wireless microphone according to the signal continuity of each frame between the terminal equipment and the target wireless microphone.
4. The pairing method of wireless microphones according to claim 1, wherein acquiring, by the terminal device, the wireless bluetooth mac address of the target wireless microphone includes:
Scanning a two-dimensional code bound on a target wireless microphone through a camera on the terminal equipment; and acquiring the wireless Bluetooth mac address of the target wireless microphone by identifying the content information corresponding to the two-dimensional code.
5. The pairing method of wireless microphones according to claim 1, wherein establishing a wireless communication pairing connection between the terminal device and a target wireless microphone according to the wireless bluetooth mac address comprises:
acquiring Bluetooth equipment information of the target microphone according to the wireless Bluetooth mac address;
And controlling a first Bluetooth module of the terminal equipment to scan surrounding Bluetooth equipment, and establishing Bluetooth pairing connection between the terminal equipment and a target wireless microphone when the Bluetooth equipment information is searched.
6. The pairing method of wireless microphones according to claim 1, wherein calculating a power sum of frequency bands according to channel parameters of current respective frequency bands, and selecting a common frequency band to be added according to the power sum, comprises:
Initializing all frequency bands of the current U section;
demodulating and decoding each channel of each frequency band based on a nonlinear orthogonal multiple access technology to obtain a demodulation signal of each independent wireless microphone;
Calculating the maximum band capacity of the frequency band according to the demodulation signal;
And calculating the power sum of the frequency band occupied sections of the frequency bands, and selecting the frequency band with the power sum smaller than the maximum frequency band capacity as the shared frequency band to be added.
7. The method of pairing wireless microphones of claim 6, further comprising:
scanning the U section in the scene, and calculating the signal to noise ratio in each frequency band;
If the signal-to-noise ratio exceeds a signal-to-noise ratio threshold, acquiring all online wireless microphones in the frequency band;
And reassigning all online wireless microphones in the frequency band to a to-be-added common frequency band with the minimum sum of power.
8. The method of pairing wireless microphones according to claim 1, further comprising, if all frequency band capacities of the U-segment are full:
acquiring line Bluetooth mac addresses of all online wireless microphones of a current association record and frequency band IDs of frequency bands used by the line Bluetooth mac addresses;
Disconnecting the pairing connection of the wireless microphone and the corresponding terminal equipment and releasing the frequency band resource;
and accessing the target wireless microphone by using the released frequency band resource.
9. A pairing device for wireless microphones, comprising:
The scanning module is used for acquiring the wireless Bluetooth mac address of the target wireless microphone through the terminal equipment;
The pairing module is used for establishing wireless communication pairing connection between the terminal equipment and the target wireless microphone according to the wireless Bluetooth mac address;
The searching module is used for scanning the U-section in the scene to obtain a current idle frequency band and selecting a target frequency band from the idle frequency band; if no idle frequency band exists currently, acquiring frequency bands used by all current online wireless microphones, calculating a target shared frequency band according to channel parameters of all current frequency bands and position information of target wireless microphones, calculating power sum of the frequency bands according to the channel parameters of all current frequency bands, selecting a shared frequency band to be added according to the power sum, respectively calculating position distances between all current online wireless microphones of the shared frequency band to be added and the target wireless microphones, and selecting the shared frequency band to be used by the wireless microphone with the smallest power sum and the largest position distance as the target shared frequency band;
and the allocation module is used for allocating the target frequency band to the target wireless microphone or allocating the target common frequency band to the target wireless microphone for multiple access, and informing the terminal equipment paired with the target wireless microphone to adopt the target frequency band to transmit data through a Bluetooth communication protocol.
10. A wireless microphone management system, comprising: the system comprises a server, a U-section space scanning device, a plurality of terminal devices and a plurality of wireless microphones, wherein the U-section space scanning device is connected with the server; wherein, the server is respectively connected with the terminal equipment; each terminal device is connected with the wireless microphone through wireless communication;
the server is configured to perform the steps of the pairing method of wireless microphones of any of claims 1-8.
11. The wireless microphone management system of claim 10, wherein the terminal device comprises: the device comprises a first Bluetooth module, a first U-section module and scanning equipment; the wireless microphone comprises a second Bluetooth module and a second U-section module; wherein, the wireless microphone is provided with a two-dimensional code; the scanning equipment is used for scanning the two-dimensional code to obtain a line Bluetooth mac address of the wireless microphone, and the first Bluetooth module is used for pairing with the second Bluetooth module and transmitting instructions through a Bluetooth protocol; the first U-section module is used for carrying out data transmission with the second U-section module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642629.2A CN114339712B (en) | 2021-12-29 | 2021-12-29 | Pairing method and device of wireless microphone and wireless microphone management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111642629.2A CN114339712B (en) | 2021-12-29 | 2021-12-29 | Pairing method and device of wireless microphone and wireless microphone management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114339712A CN114339712A (en) | 2022-04-12 |
| CN114339712B true CN114339712B (en) | 2024-05-07 |
Family
ID=81017828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111642629.2A Active CN114339712B (en) | 2021-12-29 | 2021-12-29 | Pairing method and device of wireless microphone and wireless microphone management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114339712B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115333563A (en) * | 2022-08-10 | 2022-11-11 | 北京悦米科技有限公司 | Structure and method for realizing bidirectional communication of U-section equipment |
Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0892508A2 (en) * | 1997-07-14 | 1999-01-20 | Mitsubishi Denki Kabushiki Kaisha | Mobile communication system with frequency and time slot sharing in TDMA and CDMA signals for quality improvement |
| JP2001095031A (en) * | 1999-09-24 | 2001-04-06 | Toshiba Corp | Mobile communication terminal |
| WO2003096571A1 (en) * | 2002-05-13 | 2003-11-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio resource management for a high speed shared channel |
| CN101400118A (en) * | 2007-09-28 | 2009-04-01 | 株式会社Ntt都科摩 | Base station, receiving device, mobile terminal, and frequency sharing method |
| CN101909302A (en) * | 2009-06-03 | 2010-12-08 | 华为技术有限公司 | Method and equipment for distributing dynamic spectrums |
| CN103298092A (en) * | 2012-02-24 | 2013-09-11 | 华为技术有限公司 | Power distributing method, device and system |
| CN103533552A (en) * | 2012-07-03 | 2014-01-22 | 中国移动通信集团设计院有限公司 | Frequency spectrum sharing method and device |
| EP2757823A1 (en) * | 2010-06-22 | 2014-07-23 | Huawei Technologies Co., Ltd. | Method for reporting power headroom report and user equipment |
| CN104270712A (en) * | 2014-10-28 | 2015-01-07 | 东南大学 | Upstream physical layer resource sharing and power controlling method for equipment-to-equipment communication |
| CN105430541A (en) * | 2015-10-28 | 2016-03-23 | 杨子忠 | Wireless microphone automatic frequency matching method and device |
| WO2016077950A1 (en) * | 2014-11-17 | 2016-05-26 | 华为技术有限公司 | Control information processing method, apparatus and system |
| CN105634529A (en) * | 2016-02-01 | 2016-06-01 | 李兰 | Intelligent interphone with Bluetooth automatic adaption frequency |
| CN105764129A (en) * | 2016-02-23 | 2016-07-13 | 国网江苏省电力公司电力科学研究院 | Quick resource sharing method applicable to device-to-device communication |
| CN205754609U (en) * | 2016-01-29 | 2016-11-30 | 高翔 | Radio digital mic |
| CN205812389U (en) * | 2016-01-29 | 2016-12-14 | 高翔 | Radio digital mic |
| DE202017102743U1 (en) * | 2016-12-23 | 2017-06-09 | Mascot Electric Co., Ltd. | Wireless microphone system |
| CN108449713A (en) * | 2018-02-08 | 2018-08-24 | 广东小天才科技有限公司 | Localization method, device, wireless microphone and the storage medium of wireless microphone |
| CN109041030A (en) * | 2018-08-28 | 2018-12-18 | 维沃移动通信有限公司 | A kind of data transmission method and terminal device |
| CN208783023U (en) * | 2018-08-09 | 2019-04-23 | 深圳市中科荣电子信息有限公司 | A kind of automatic frequency aligning U sections of wireless microphones |
| CN109891952A (en) * | 2016-10-20 | 2019-06-14 | 索尼公司 | Communication control unit, communication control method and computer program |
| CN110299924A (en) * | 2019-06-26 | 2019-10-01 | 厦门大学嘉庚学院 | It is a kind of with the wireless microphone public address system and method for evading interference signal automatically |
| CN110312310A (en) * | 2018-03-27 | 2019-10-08 | 哈曼国际工业有限公司 | Frequency for wireless microphone system is distributed |
| CN110545120A (en) * | 2018-05-28 | 2019-12-06 | 联发科技股份有限公司 | Control device, resource scheduling method and communication device |
| CN110602695A (en) * | 2019-10-18 | 2019-12-20 | 中国联合网络通信集团有限公司 | Block chain-based spectrum sharing method, device and system |
| CN111818669A (en) * | 2020-06-04 | 2020-10-23 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and data transmission method thereof |
| CN213661870U (en) * | 2021-01-04 | 2021-07-09 | 温州高瞻教育发展投资有限公司 | Multifunctional microphone |
| CN113438741A (en) * | 2017-10-26 | 2021-09-24 | 电信科学技术第四研究所有限公司 | Multi-frequency band broadband wireless access system and method |
| CN214481143U (en) * | 2021-03-12 | 2021-10-22 | 恩平市亿歌电子有限公司 | Dual-band-based microphone system and wireless microphone |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006179965A (en) * | 2004-10-25 | 2006-07-06 | Nec Corp | Radio network control method, radio communication system, and base station controller |
| US8724536B2 (en) * | 2010-01-07 | 2014-05-13 | Qualcomm Incorporated | System and apparatus for power-efficiently delivering update information to devices in a broadcast network |
| EP3547765B1 (en) * | 2018-03-28 | 2021-08-18 | Institut Mines-Telecom | Power distribution to sub-bands in multiple access communications systems |
| JP2020123784A (en) * | 2019-01-29 | 2020-08-13 | パナソニックＩｐマネジメント株式会社 | Common frequency management system and common frequency management method |
-
2021
- 2021-12-29 CN CN202111642629.2A patent/CN114339712B/en active Active
Patent Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0892508A2 (en) * | 1997-07-14 | 1999-01-20 | Mitsubishi Denki Kabushiki Kaisha | Mobile communication system with frequency and time slot sharing in TDMA and CDMA signals for quality improvement |
| JP2001095031A (en) * | 1999-09-24 | 2001-04-06 | Toshiba Corp | Mobile communication terminal |
| WO2003096571A1 (en) * | 2002-05-13 | 2003-11-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio resource management for a high speed shared channel |
| CN101400118A (en) * | 2007-09-28 | 2009-04-01 | 株式会社Ntt都科摩 | Base station, receiving device, mobile terminal, and frequency sharing method |
| CN101909302A (en) * | 2009-06-03 | 2010-12-08 | 华为技术有限公司 | Method and equipment for distributing dynamic spectrums |
| EP2757823A1 (en) * | 2010-06-22 | 2014-07-23 | Huawei Technologies Co., Ltd. | Method for reporting power headroom report and user equipment |
| CN103298092A (en) * | 2012-02-24 | 2013-09-11 | 华为技术有限公司 | Power distributing method, device and system |
| CN103533552A (en) * | 2012-07-03 | 2014-01-22 | 中国移动通信集团设计院有限公司 | Frequency spectrum sharing method and device |
| CN104270712A (en) * | 2014-10-28 | 2015-01-07 | 东南大学 | Upstream physical layer resource sharing and power controlling method for equipment-to-equipment communication |
| WO2016077950A1 (en) * | 2014-11-17 | 2016-05-26 | 华为技术有限公司 | Control information processing method, apparatus and system |
| CN105430541A (en) * | 2015-10-28 | 2016-03-23 | 杨子忠 | Wireless microphone automatic frequency matching method and device |
| CN205812389U (en) * | 2016-01-29 | 2016-12-14 | 高翔 | Radio digital mic |
| CN205754609U (en) * | 2016-01-29 | 2016-11-30 | 高翔 | Radio digital mic |
| CN105634529A (en) * | 2016-02-01 | 2016-06-01 | 李兰 | Intelligent interphone with Bluetooth automatic adaption frequency |
| CN105764129A (en) * | 2016-02-23 | 2016-07-13 | 国网江苏省电力公司电力科学研究院 | Quick resource sharing method applicable to device-to-device communication |
| CN109891952A (en) * | 2016-10-20 | 2019-06-14 | 索尼公司 | Communication control unit, communication control method and computer program |
| DE202017102743U1 (en) * | 2016-12-23 | 2017-06-09 | Mascot Electric Co., Ltd. | Wireless microphone system |
| CN113438741A (en) * | 2017-10-26 | 2021-09-24 | 电信科学技术第四研究所有限公司 | Multi-frequency band broadband wireless access system and method |
| CN108449713A (en) * | 2018-02-08 | 2018-08-24 | 广东小天才科技有限公司 | Localization method, device, wireless microphone and the storage medium of wireless microphone |
| CN110312310A (en) * | 2018-03-27 | 2019-10-08 | 哈曼国际工业有限公司 | Frequency for wireless microphone system is distributed |
| CN110545120A (en) * | 2018-05-28 | 2019-12-06 | 联发科技股份有限公司 | Control device, resource scheduling method and communication device |
| CN208783023U (en) * | 2018-08-09 | 2019-04-23 | 深圳市中科荣电子信息有限公司 | A kind of automatic frequency aligning U sections of wireless microphones |
| CN109041030A (en) * | 2018-08-28 | 2018-12-18 | 维沃移动通信有限公司 | A kind of data transmission method and terminal device |
| CN110299924A (en) * | 2019-06-26 | 2019-10-01 | 厦门大学嘉庚学院 | It is a kind of with the wireless microphone public address system and method for evading interference signal automatically |
| CN110602695A (en) * | 2019-10-18 | 2019-12-20 | 中国联合网络通信集团有限公司 | Block chain-based spectrum sharing method, device and system |
| CN111818669A (en) * | 2020-06-04 | 2020-10-23 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and data transmission method thereof |
| CN213661870U (en) * | 2021-01-04 | 2021-07-09 | 温州高瞻教育发展投资有限公司 | Multifunctional microphone |
| CN214481143U (en) * | 2021-03-12 | 2021-10-22 | 恩平市亿歌电子有限公司 | Dual-band-based microphone system and wireless microphone |
Non-Patent Citations (5)
| Title |
|---|
| CATT.R3-100598 "Addition of power control and synchronization control configurations for enhanced CELL_FACH for 1.28Mcps TDD".3GPP tsg_ran\WG3_Iu.2010,(TSGR3_67),全文. * |
| Time-Resolved sum Frequency Generation Spectroscopy：A Quantitative Comparison Between Intensity and Phase-Resolved Spectroscopy;Ellen H.G.Bachus;《ACS》;20180212;全文 * |
| 蓝牙技术在扩音器中的应用;罗丽娜;《电子技术与软件工程》;全文 * |
| 计算机网络安全防护技术探究;江坚;《计算机产品与流通》;20180115;全文 * |
| 面向5G的NOMA跨层功率分配方案与多目标联合优化设计;吴济洲;《中国优秀硕士学位论文全文数据库》;20210315;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114339712A (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5902320B2 (en) | System and method for determining noise level in a wireless communication environment | |
| CN106604403B (en) | Miracast protocol-based channel selection method and system | |
| US9936372B2 (en) | Method and device for communication between devices in wireless communication system | |
| CN106454537A (en) | Live video streaming method and relevant equipment | |
| CN113316131B (en) | Connection establishment method, device, electronic equipment and storage medium | |
| CN105703789B (en) | The processing method of communication device and multiple radio activities | |
| JP2011229158A (en) | Method for assigning frequency channel using efficient spectrum detection in multiple fa system | |
| CN104010355B (en) | The device and method of wireless communication are provided in portable terminal | |
| CN114339712B (en) | Pairing method and device of wireless microphone and wireless microphone management system | |
| CN101242640A (en) | Inter-cell interference restraint method, base station and system for restraining inter-cell interference | |
| CN101873709B (en) | Method, equipment and system for assigned calling | |
| CN110826355A (en) | Image recognition method, device and storage medium | |
| CN111698733A (en) | Method, device and system for providing QoS differentiation of shared carrier | |
| CN116056174A (en) | Wireless fidelity Wi-Fi roaming switching method and device | |
| CN104919863B (en) | Subchannel for wireless data communication detects | |
| US11456543B2 (en) | Antenna assembly and antenna tuning-free method and apparatus | |
| US8411589B2 (en) | Communication system, information processing apparatus, and control method | |
| CN110996137B (en) | Video processing method and device | |
| CN103095836A (en) | Method, device and system of adjustment of internet application service quality | |
| CN108462994B (en) | Channel selection method for personal hot spot and related product | |
| CN102244819A (en) | Digital television receiving terminal, frequency locking system based on QAM (Queued Access Method) and frequency locking method | |
| CN116056220A (en) | Resource unit assignment for selective fading | |
| CN112055372B (en) | Customer premises equipment and working method thereof | |
| WO2010015971A1 (en) | Method of operating a radio transceiver and radio transceiver | |
| CN114585026A (en) | Frequency point switching method, terminal, base station and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |