CN116209068B - Signal transmitting method, system, equipment and storage medium of wireless microphone - Google Patents
Signal transmitting method, system, equipment and storage medium of wireless microphone Download PDFInfo
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- CN116209068B CN116209068B CN202310202590.5A CN202310202590A CN116209068B CN 116209068 B CN116209068 B CN 116209068B CN 202310202590 A CN202310202590 A CN 202310202590A CN 116209068 B CN116209068 B CN 116209068B
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- 230000010354 integration Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims description 22
- 230000008054 signal transmission Effects 0.000 claims description 19
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- 238000004590 computer program Methods 0.000 claims 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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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- 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
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Abstract
The invention relates to the field of wireless communication, and discloses a signal transmitting method, a system, equipment and a storage medium of a wireless microphone. The method comprises the following steps: the master clock system adjusts the secondary time slot timing of the secondary clock system to be consistent with the master time slot timing based on the preset master time slot timing, wherein the master time slot timing comprises: m time slots, M is a positive integer; in the kth time slot, the ith transmitter subsystem transmits data signals to the master clock system, wherein k=1, 2, 3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function; in the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N; the computing system integrates all data signals received in the kth time slot; the computing system performs an integration process on all data signals received in the k+1th slot.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, a system, an apparatus, and a storage medium for transmitting signals of a wireless microphone.
Background
The 2.4GHz wireless communication technology is a short-distance wireless communication technology using the worldwide public frequency band. Since the 2.4GHz technology wireless technology is proposed, bluetooth, WIFI, zigbee and other technologies are also derived, and of course, a freely customized 2.4G private communication protocol is also available, and the 2.4G private communication protocol wireless technology is applied by various manufacturers and is widely applied to products such as consumer electronics, smart home, wireless keyboard and mouse, wireless earphone and the like.
In the development of wireless microphone systems, 2.4G technology meets the requirements of high transmission rate and low delay of wireless microphones, and when one-to-many microphones are connected (one receiver is connected with a plurality of transmitters), interference and insufficient channel capacity can occur, which needs to be solved.
Disclosure of Invention
The invention mainly aims to solve the technical problems that the wireless microphone has interference and insufficient channel capacity in communication during one-to-many transmission connection.
The first aspect of the present invention provides a signal transmitting method of a wireless microphone, where the signal transmitting method of the wireless microphone is applied to a signal transmitting system of the wireless microphone, and the signal transmitting system of the wireless microphone includes: a receiving host system, N transmitting secondary systems, the receiving host system comprising: the signal transmitting method of the wireless microphone comprises the following steps of:
the master clock system adjusts the secondary time slot timing of the secondary clock system to be consistent with the master time slot timing based on a preset master time slot timing, wherein the master time slot timing comprises: m time slots, M is a positive integer;
In the kth time slot, the ith transmitter subsystem transmits data signals to the master clock system, wherein k=1, 2, 3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function;
In the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N;
The computing system integrates all data signals received in a kth time slot to obtain first output data, and sends the first output data to a first channel interface;
and the computing system integrates all data signals received in the (k+1) th time slot to obtain second output data, and sends the second output data to a second channel interface.
Optionally, in a first implementation manner of the first aspect of the present invention, the computing system reading a primary slot timing of the primary clock system, and adjusting the timing of the secondary clock system to be consistent with the primary slot timing includes:
the master clock system reads preset master time slot timing and reads the secondary time slot timing of the secondary clock system through electric connection;
Judging whether the primary time slot timing is consistent with the secondary time slot timing;
and if the time slots are inconsistent, adjusting the time slot timing of the secondary clock system through electric connection until the time slot timing of the secondary clock system is synchronous with the time slot timing of the primary clock system.
Optionally, in a second implementation manner of the first aspect of the present invention, the transmitting the data signal by the ith transmitting secondary machine system to the primary clock system includes:
the ith transmitting secondary machine system and the main clock system carry out information matching processing of a communication protocol head and establish a communication channel;
Based on the communication channel, an ith transmitter secondary system transmits a data signal into the primary clock system.
Optionally, in a third implementation manner of the first aspect of the present invention, the transmitting the data signal by the ith transmitting secondary machine system to the primary clock system includes:
And the ith transmitting secondary machine system transmits the data signal to the main clock system through the 2.4GHz frequency band.
Optionally, in a fourth implementation manner of the first aspect of the present invention, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal to the secondary clock system includes:
The (n+1)/2-th transmitting secondary machine system and the secondary clock system perform the information matching processing of the communication protocol head to establish a communication channel;
Based on the communication channel, the ith (n+1)/2 th transmit subsystem transmits a data signal to the secondary clock system.
Optionally, in a fifth implementation manner of the first aspect of the present invention, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal to the secondary clock system includes:
the (n+1)/2 th transmitting secondary transmitter system transmits data signals into the secondary clock system through the 2.4GHz band.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the performing an integration process on all data signals received in the kth time slot includes:
and (3) carrying out analog signal integration processing or digital signal integration processing on all data signals received in the kth time slot by presetting a CODEC encoder.
A second aspect of the present invention provides a signal transmission system of a wireless microphone, the signal transmission system of the wireless microphone including:
the system comprises a receiving host system and N transmitting secondary machine systems, wherein N is a positive integer greater than 1;
the receiving host system includes: a computing system, a primary clock system, a secondary clock system;
The master clock system is configured to adjust a secondary time slot timing of the secondary clock system to be consistent with the master time slot timing based on a preset master time slot timing, where the master time slot timing includes: m time slots, M is a positive integer;
the N transmitting secondary machine systems are configured to transmit data signals to the primary clock system in a kth time slot, where k=1, 2,3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function;
In the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N;
the computing system is used for integrating all data signals received in the kth time slot to obtain first output data, and sending the first output data to a first channel interface;
And integrating all data signals received in the (k+1) th time slot to obtain second output data, and sending the second output data to a second channel interface.
A third aspect of the present invention provides a signal transmitting apparatus of a wireless microphone, comprising: a memory and at least one processor, the memory having instructions stored therein, the memory and the at least one processor being interconnected by a line; the at least one processor invokes the instructions in the memory to cause the signal transmitting device of the wireless microphone to perform the signal transmitting method of the wireless microphone described above.
A fourth aspect of the present invention provides a computer-readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the above-described signal transmission method of a wireless microphone.
In the embodiment of the invention, the receiving host is simultaneously connected with a plurality of transmitting secondary machine systems by aligning the receiving and transmitting time slots of the main clock system and the secondary clock system in the receiving host system, so that the communication rate is improved, the high data throughput is maintained, the delay is reduced, and the problems of interference and insufficient channel capacity are solved.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a signal transmitting method of a wireless microphone according to an embodiment of the present invention;
fig. 2 is a specific structural diagram of a signal transmitting system of a wireless microphone according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of slot timing misalignment of a signal transmitting method of a wireless microphone according to an embodiment of the present invention;
fig. 4 is a schematic diagram of time slot timing alignment of a signal transmitting method of a wireless microphone according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another embodiment of a signal transmitting system of a wireless microphone according to an embodiment of the present invention;
Fig. 6 is a schematic diagram of another embodiment of a signal transmitting system of a wireless microphone according to an embodiment of the present invention;
Fig. 7 is a schematic diagram of an embodiment of a signal transmitting apparatus of a wireless microphone according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a signal transmitting method, a system, equipment and a storage medium of a wireless microphone.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
For easy understanding, referring to fig. 1, referring to the specific flow of the embodiment of the present invention, in one embodiment of a signal transmission method of a wireless microphone, the signal transmission method of the wireless microphone is applied to a signal transmission system of the wireless microphone, where the signal transmission system of the wireless microphone includes: a receiving host system, N transmitting secondary systems, the receiving host system comprising: the signal transmitting method of the wireless microphone comprises the following steps of:
101. The computing system reads a primary slot timing of the primary clock system and adjusts the timing of the secondary clock system to be consistent with the primary slot timing, wherein the primary slot timing comprises: m time slots, M is a positive integer;
102. In the kth time slot, the ith transmitter subsystem transmits data signals to the master clock system, wherein k=1, 2, 3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function;
103. In the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N;
104. The computing system integrates all data signals received in a kth time slot to obtain first output data, and sends the first output data to a first channel interface;
105. And the computing system integrates all data signals received in the (k+1) th time slot to obtain second output data, and sends the second output data to a second channel interface.
In this embodiment, reference may be made to fig. 2, fig. 2 is a specific structure diagram of an embodiment of the present invention, in fig. 2, mcu (controller), first CODE (compiler), second CODE (compiler) form a computing system, RF module MM1 is a primary clock system, RF module MS1 is a secondary clock system, and specific circuit structures such as a power supply module, an overvoltage protection module, an OLED display module and the like may be included, and output signals may be unified analog signals, or may be first digital signals and second digital signals, respectively. The receiver host system may utilize low noise amplification, filters to reduce noise, and modulate using 2.4GBPF in receiving communications for the N transmitter sub-systems. One protocol master (RX) is used as a timing master (radio frequency master chip of RX), and one or more protocol masters are used as timing slaves (radio frequency slave chips of RX), and the timing master controls the timing slaves through single-wire communication, adjusts the timing master-slave clock and ensures the alignment of radio frequency transceiving time slots of the timing master-slave chips. The system is composed of a star network topology of a single protocol host and more than four protocol slaves (the protocol host is RX, i.e. a receiving host system, and the protocol slaves are TX, i.e. N transmitting slave systems). All information of the protocol slaves (N transmitting secondary systems) is limited to burst transmission within a constant duration time slot, and the protocol master (receiving host system) controls the timing of the time slot, and the protocol slaves transmit data at a time explicitly specified by the protocol master to achieve synchronization. All audio information is transmitted by the protocol host to the protocol slave, or from the protocol slave to the protocol host, within a time slot, without being transmitted between the protocol slaves. All nodes in the audio network operate on the same radio frequency channel, and each node transmits a data packet. The duration of the time slot may be set by the host (which may be set to 2.5 ms). In each time slot, data packets between the TX and the RX are transmitted to each other, maintaining the throughput of the data.
In step 101, more than two protocol master modules are set in the protocol master, the protocol master modules set the same time slot timing, one protocol master module includes a clock master unit, and the other protocol master modules include a clock slave unit, receive clock synchronization information of the clock master unit, and maintain synchronism with data transmission of the master module. Referring to fig. 3 and 4, fig. 3 is a schematic diagram of slot timing misalignment, and fig. 4 is a schematic diagram of slot timing alignment.
Specifically, 101 may perform the following steps:
1011. The master clock system reads preset master time slot timing and reads the secondary time slot timing of the secondary clock system through electric connection;
1012. judging whether the primary time slot timing is consistent with the secondary time slot timing;
1013. and if the time slots are inconsistent, adjusting the time slot timing of the secondary clock system through electric connection until the time slot timing of the secondary clock system is synchronous with the time slot timing of the primary clock system.
In the steps 1011-1013, by means of the electrical signal connection, the RF module MM1 (primary clock system) can synchronize the time slot timing of the RF module MS1 (secondary clock system) based on the own primary time slot timing, and instead of forced synchronization, it can first determine whether the time slot timings of the two are identical, if so, synchronization is not required, and if not, synchronization processing is required, so as to achieve synchronization between the secondary time slot timing and the primary time slot timing.
In steps 102-105, the master clock system MM1 is electrically connected to the transmitter subsystem S1 and the transmitter subsystem S2, respectively, the slave clock system MS1 is electrically connected to the transmitter subsystem S3 and the transmitter subsystem S4, respectively, the number of clock modules in the receiver host system is not limited to 2, and the number of transmitter subsystem connected to one receiver host system is not limited to 2. MM1 is time slot aligned with MS1, transmitting simultaneously, receiving simultaneously. MM1 receives S1 information in a T1 slot, S2 information in a T2 slot, and MS1 receives S3 information in a T1 slot, S4 information in a T2 slot, and outputs a digital signal and an analog signal after processing in a host.
Where k may take a number of values, in a defined time slot, the i-th of the N transmitter sub-systems and the primary clock system are signaled, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function, the i-th of the N transmitter sub-systems [ (n+1)/2 ] (actually the other half) and the secondary clock system are signaled, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function and i+ [ (n+1)/2 ] is not greater than N.
Here, the data of the transmitter and the secondary transmitter received by MM1 (primary clock system) and MS1 (secondary clock system) such as k time slots, 1,3, 5, and 7 are integrated into first data, and output to the first channel interface, which may be the left channel interface.
Here, the data of the transmitter and the receiver received by MM1 (primary clock system) and MS1 (secondary clock system) such as k+1 time slots, 2,4, 6, 8 are integrated into second data, and output to the second channel interface, which may be the right channel interface.
Specifically, the following steps may be performed at 102:
1021. the ith transmitting secondary machine system and the main clock system carry out information matching processing of a communication protocol head and establish a communication channel;
1022. Based on the communication channel, the ith transmitter subsystem transmits a data signal to the master clock system.
In steps 1021-1022, the data information is matched and transmitted by using the information of the communication protocol header to establish a channel.
The "ith transmitter secondary system transmitting data signals into the primary clock system" in 1022 and 102 may be the following:
1023. the ith transmitting secondary machine system transmits the data signals to the main clock system through the 2.4GHz frequency band.
In this embodiment, the communication channel frequency is fixed at 2.4GHz for transmission, although fixed frequencies are not required in 1022 and 102. The 2.4GHz frequency band is divided into 18 radio frequency channels with the bandwidth of 4MHz, the host controls the self-adaptive frequency hopping, and when a new radio frequency channel of an active channel set is selected, certain minimum frequency distance is kept between different active channels, so that interference among frequencies is prevented.
Specifically, at 103 the following steps may be performed:
1031. the (n+1)/2-th transmitting secondary machine system and the secondary clock system perform the information matching processing of the communication protocol head to establish a communication channel;
1032. Based on the communication channel, the ith (n+1)/2 th transmit subsystem transmits a data signal to the secondary clock system.
In step 1031-1032, the data information is matched and channel is established for transmission by using the information of the communication protocol header.
The "ith (n+1)/2" transmitting secondary transmitter system in 1032 and 103 transmits data signals into the secondary clock system "may be as follows:
1033. The (n+1)/2 th transmitting secondary transmitter system transmits the data signal to the secondary clock system through the 2.4GHz band.
In this embodiment, the communication channel frequency is fixed at 2.4GHz for transmission, although no fixed frequency is required in 1032 and 103.
In step 105, the following steps may be performed:
1051. And (3) carrying out analog signal integration processing or digital signal integration processing on all data signals received in the kth time slot by presetting a CODEC encoder.
In this embodiment, fig. 2 shows that the first CODEC encoder and the second CODEC encoder perform analog signal integration processing or digital signal integration processing, respectively, and output corresponding integrated data, that is, an analog signal or a digital signal.
In the embodiment of the invention, the receiving host is simultaneously connected with a plurality of transmitting secondary machine systems by aligning the receiving and transmitting time slots of the main clock system and the secondary clock system in the receiving host system, so that the communication rate is improved, the high data throughput is maintained, the delay is reduced, and the problems of interference and insufficient channel capacity are solved.
The method for transmitting signals of a wireless microphone according to the embodiment of the present invention is described above, and the system for transmitting signals of a wireless microphone according to the embodiment of the present invention is described below, referring to fig. 5, in which an embodiment of the system for transmitting signals of a wireless microphone according to the embodiment of the present invention includes:
A receiving host system 501, N transmitting secondary systems 502, where N is a positive integer greater than 1;
the receiver host system 501 includes: a computing system 5011, a primary clock system 5012, and a secondary clock system 5013;
the primary clock system 5012 is configured to adjust a secondary time slot timing of the secondary clock system to be consistent with the primary time slot timing based on a preset primary time slot timing, where the primary time slot timing includes: m time slots, M is a positive integer;
The N transmitter systems 502 are configured to transmit data signals to the master clock system in a kth time slot, where k=1, 2, 3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function;
In the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N;
the computing system 5011 is configured to integrate all data signals received in a kth time slot to obtain first output data, and send the first output data to a first channel interface;
And integrating all data signals received in the (k+1) th time slot to obtain second output data, and sending the second output data to a second channel interface.
In the embodiment of the invention, the receiving host is simultaneously connected with a plurality of transmitting secondary machine systems by aligning the receiving and transmitting time slots of the main clock system and the secondary clock system in the receiving host system, so that the communication rate is improved, the high data throughput is maintained, the delay is reduced, and the problems of interference and insufficient channel capacity are solved.
Referring to fig. 6, in another embodiment of a signal transmission system of a wireless microphone according to an embodiment of the present invention, the signal transmission system of a wireless microphone includes:
A receiving host system 501, N transmitting secondary systems 502, where N is a positive integer greater than 1;
the receiver host system 501 includes: a computing system 5011, a primary clock system 5012, and a secondary clock system 5013;
the primary clock system 5012 is configured to adjust a secondary time slot timing of the secondary clock system to be consistent with the primary time slot timing based on a preset primary time slot timing, where the primary time slot timing includes: m time slots, M is a positive integer;
The N transmitter systems 502 are configured to transmit data signals to the master clock system in a kth time slot, where k=1, 2, 3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function;
In the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N;
the computing system 5011 is configured to integrate all data signals received in a kth time slot to obtain first output data, and send the first output data to a first channel interface;
And integrating all data signals received in the (k+1) th time slot to obtain second output data, and sending the second output data to a second channel interface.
Wherein, the master clock system 5012 is specifically configured to:
the master clock system reads preset master time slot timing and reads the secondary time slot timing of the secondary clock system through electric connection;
Judging whether the primary time slot timing is consistent with the secondary time slot timing;
and if the time slots are inconsistent, adjusting the time slot timing of the secondary clock system through electric connection until the time slot timing of the secondary clock system is synchronous with the time slot timing of the primary clock system.
The N transmitter sub-systems 502 are specifically configured to:
the ith transmitting secondary machine system and the main clock system carry out information matching processing of a communication protocol head and establish a communication channel;
Based on the communication channel, an ith transmitter secondary system transmits a data signal into the primary clock system.
The N transmitter sub-systems 502 are specifically further configured to:
And the ith transmitting secondary machine system transmits the data signal to the main clock system through the 2.4GHz frequency band.
The N transmitter sub-systems 502 are specifically further configured to:
The (n+1)/2-th transmitting secondary machine system and the secondary clock system perform the information matching processing of the communication protocol head to establish a communication channel;
Based on the communication channel, the ith (n+1)/2 th transmit subsystem transmits a data signal to the secondary clock system.
The N transmitter sub-systems 502 are specifically further configured to:
the (n+1)/2 th transmitting secondary transmitter system transmits data signals into the secondary clock system through the 2.4GHz band.
Wherein, the computing system 5011 is further specifically configured to:
and (3) carrying out analog signal integration processing or digital signal integration processing on all data signals received in the kth time slot by presetting a CODEC encoder.
In the embodiment of the invention, the receiving host is simultaneously connected with a plurality of transmitting secondary machine systems by aligning the receiving and transmitting time slots of the main clock system and the secondary clock system in the receiving host system, so that the communication rate is improved, the high data throughput is maintained, the delay is reduced, and the problems of interference and insufficient channel capacity are solved.
The above fig. 5 and fig. 6 describe in detail the signal transmitting system of the wireless microphone in the embodiment of the present invention from the point of view of the modularized functional entity, and the following describes in detail the signal transmitting apparatus of the wireless microphone in the embodiment of the present invention from the point of view of the hardware processing.
Fig. 7 is a schematic structural diagram of a signal transmitting device of a wireless microphone according to an embodiment of the present invention, where the signal transmitting device 700 of the wireless microphone may have a relatively large difference due to different configurations or performances, and may include one or more processors (central processing units, CPU) 710 (e.g., one or more processors) and a memory 720, one or more storage mediums 730 (e.g., one or more mass storage devices) storing application programs 733 or data 732. Wherein memory 720 and storage medium 730 may be transitory or persistent. The program stored in the storage medium 730 may include one or more modules (not shown), each of which may include a series of instruction operations in the signal transmitting apparatus 700 of the wireless microphone. Still further, the processor 710 may be configured to communicate with the storage medium 730 and execute a series of instruction operations in the storage medium 730 on the signal emitting device 700 of the wireless microphone.
The wireless microphone based signal transmission device 700 may also include one or more power supplies 740, one or more wired or wireless network interfaces 750, one or more input/output interfaces 760, and/or one or more operating systems 731, such as Windows Serve, mac OS X, unix, linux, freeBSD, and the like. It will be appreciated by those skilled in the art that the wireless microphone signal emitting device structure shown in fig. 7 is not limiting of the wireless microphone based signal emitting device and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
The present invention also provides a computer readable storage medium, which may be a non-volatile computer readable storage medium, and may also be a volatile computer readable storage medium, where instructions are stored in the computer readable storage medium, when the instructions are executed on a computer, cause the computer to perform the steps of the signal transmission method of the wireless microphone.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the system or the unit described above may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The signal transmission method of the wireless microphone is characterized in that the signal transmission method of the wireless microphone is applied to a signal transmission system of the wireless microphone, and the signal transmission system of the wireless microphone comprises the following steps: a receiving host system, N transmitting secondary systems, the receiving host system comprising: the signal transmitting method of the wireless microphone comprises the following steps of:
the master clock system adjusts the secondary time slot timing of the secondary clock system to be consistent with the master time slot timing based on a preset master time slot timing, wherein the master time slot timing comprises: m time slots, M is a positive integer;
In the kth time slot, the ith transmitter subsystem transmits data signals to the master clock system, wherein k=1, 2, 3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function;
In the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N;
The computing system integrates all data signals received in a kth time slot to obtain first output data, and sends the first output data to a first channel interface;
and the computing system integrates all data signals received in the (k+1) th time slot to obtain second output data, and sends the second output data to a second channel interface.
2. The method of claim 1, wherein the master clock system adjusting the secondary slot timing of the secondary clock system to coincide with the master slot timing based on a preset master slot timing comprises:
the master clock system reads preset master time slot timing and reads the secondary time slot timing of the secondary clock system through electric connection;
Judging whether the primary time slot timing is consistent with the secondary time slot timing;
and if the time slots are inconsistent, adjusting the time slot timing of the secondary clock system through electric connection until the time slot timing of the secondary clock system is synchronous with the time slot timing of the primary clock system.
3. The method of claim 1, wherein the ith transmitter subsystem transmits a data signal to the master clock system comprising:
the ith transmitting secondary machine system and the main clock system carry out information matching processing of a communication protocol head and establish a communication channel;
Based on the communication channel, an ith transmitter secondary system transmits a data signal into the primary clock system.
4. A method of transmitting a signal of a wireless microphone according to claim 1 or 3, wherein the ith transmitter subsystem transmits a data signal to the master clock system comprising:
And the ith transmitting secondary machine system transmits the data signal to the main clock system through the 2.4GHz frequency band.
5. The method of claim 1, wherein the i (n+1)/2-th transmitter subsystem transmits data signals to the secondary clock system comprising:
The (n+1)/2-th transmitting secondary machine system and the secondary clock system perform the information matching processing of the communication protocol head to establish a communication channel;
Based on the communication channel, the ith (n+1)/2 th transmit subsystem transmits a data signal to the secondary clock system.
6. The signal transmission method of a wireless microphone according to claim 1 or 5, wherein the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into the secondary clock system comprises:
the (n+1)/2 th transmitting secondary transmitter system transmits data signals into the secondary clock system through the 2.4GHz band.
7. The method of claim 1, wherein the integrating all data signals received in the kth time slot comprises:
and (3) carrying out analog signal integration processing or digital signal integration processing on all data signals received in the kth time slot by presetting a CODEC encoder.
8. A signal transmission system of a wireless microphone, the signal transmission system of the wireless microphone comprising:
the system comprises a receiving host system and N transmitting secondary machine systems, wherein N is a positive integer greater than 1;
the receiving host system includes: a computing system, a primary clock system, a secondary clock system;
The master clock system is configured to adjust a secondary time slot timing of the secondary clock system to be consistent with the master time slot timing based on a preset master time slot timing, where the master time slot timing includes: m time slots, M is a positive integer;
the N transmitting secondary machine systems are configured to transmit data signals to the primary clock system in a kth time slot, where k=1, 2,3, …, M-1, i=1, 2, …, [ (n+1)/2 ], [ x ] is a gaussian function;
In the k+1 time slot, the i (n+1)/2 th transmitting secondary transmitter system transmits a data signal into said secondary clock system, wherein i (n+1)/2 is not greater than N;
the computing system is used for integrating all data signals received in the kth time slot to obtain first output data, and sending the first output data to a first channel interface;
And integrating all data signals received in the (k+1) th time slot to obtain second output data, and sending the second output data to a second channel interface.
9. A signal transmitting apparatus of a wireless microphone, characterized in that the signal transmitting apparatus of a wireless microphone comprises: a memory and at least one processor, the memory having instructions stored therein, the memory and the at least one processor being interconnected by a line;
The at least one processor invokes the instructions in the memory to cause the signal transmitting device of the wireless microphone to perform the signal transmitting method of the wireless microphone of any of claims 1-7.
10. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of signal transmission of a wireless microphone according to any of claims 1-7.
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| CN102325230A (en) * | 2011-09-07 | 2012-01-18 | 中兴通讯股份有限公司 | Processing method and system for eliminating echoes and digital microphone |
| CN104333429A (en) * | 2014-10-22 | 2015-02-04 | 小米科技有限责任公司 | Method and device for realizing clock synchronization |
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| CN114830690A (en) * | 2019-12-19 | 2022-07-29 | 大北欧听力公司 | Reducing clock skew between clock signals of a first hearing device and a second hearing device |
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| US9471090B2 (en) * | 2012-11-21 | 2016-10-18 | Starkey Laboratories, Inc. | Method and apparatus for synchronizing hearing instruments via wireless communication |
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| CN102325230A (en) * | 2011-09-07 | 2012-01-18 | 中兴通讯股份有限公司 | Processing method and system for eliminating echoes and digital microphone |
| CN104333429A (en) * | 2014-10-22 | 2015-02-04 | 小米科技有限责任公司 | Method and device for realizing clock synchronization |
| CN109857192A (en) * | 2019-02-27 | 2019-06-07 | 苏州浪潮智能科技有限公司 | A kind of signal processing method, device, system, equipment and readable storage medium storing program for executing |
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