CN116193304A

CN116193304A - Wireless microphone system for multimode communication

Info

Publication number: CN116193304A
Application number: CN202310107827.1A
Authority: CN
Inventors: 邓刚; 赵芳斌
Original assignee: Shenzhen Changfeng Imaging Equipment Co ltd
Current assignee: Shenzhen Changfeng Imaging Equipment Co ltd
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-05-30

Abstract

The invention relates to the field of microphone systems, and discloses a wireless microphone system with multimode communication, which comprises a receiver and a plurality of transmitters respectively connected with the receiver in a communication way, wherein the receiver and the transmitters comprise an MCU module, an input module connected with the MCU module, an audio codec, a baseband controller, a communication transceiver and a flash memory module, the input module is used for inputting control instructions into the MCU module, the audio codec is used for converting digital audio signals and analog audio signals, the communication transceiver is used for receiving and transmitting communication signals, the flash memory module comprises a plurality of firmware respectively corresponding to different communication modes, the MCU module reads one firmware in the flash memory module, and the MCU module reconfigures the baseband controller to switch the communication modes, so that a user can adjust the corresponding communication modes according to different scenes or different transceiver devices, and the flexibility of communication is improved.

Description

Wireless microphone system for multimode communication

Technical Field

The present invention relates to the field of microphone systems, and in particular, to a wireless microphone system for multimode communication.

Background

In the existing wireless microphone products, a microphone transmitter and a receiver are generally connected in a single wireless communication mode, the frequency band of wireless connection comprises 2.4G, UHF, VHF and the like, in this state, one receiver is fixedly connected with one or two transmitters, the microphone can only be used together with a product matched with the receiver, one-to-one or one-to-two pairing between the receiver and the transmitter is set when leaving the factory, the receiver can only be connected with terminal equipment (communication equipment such as a mobile phone, a tablet and the like) in a wired mode, the transmitter is only connected with the receiver and is not connected with the terminal equipment, and the communication connection mode has certain limitation.

Disclosure of Invention

The main purpose of the present invention is to provide a wireless microphone system for multimode communication, which solves the above problems, and enriches the connection modes between a wireless microphone transmitter and a wireless microphone receiver, and between the wireless microphone transmitter and the wireless microphone receiver and terminal equipment.

The invention provides a wireless microphone system for multimode communication, which comprises a receiver and a plurality of transmitters respectively connected with the receiver in a communication way, wherein each of the receiver and the transmitters comprises an MCU module, an input module, an audio codec, a baseband controller, a communication transceiver and a flash memory module, wherein the input module is used for inputting control instructions into the MCU module, the audio codec is used for converting digital audio signals and analog audio signals, the baseband controller is used for converting communication data sent by the MCU module into communication signals and transmitting the communication signals to the communication transceiver, the baseband controller is used for converting the communication signals received by the communication transceiver into communication data and transmitting the communication signals to the MCU module, the communication transceiver is used for receiving and transmitting the communication signals, and the flash memory module comprises a plurality of firmware respectively corresponding to different communication modes, wherein the MCU module reads one firmware in the flash memory module, and the MCU module reconfigures the baseband controller to switch the communication modes.

Preferably, the MCU module includes an interactive program unit, an audio transmission program unit, and a mode switching program unit.

Preferably, the input module comprises a key and a touch screen which are both connected with the interactive program unit.

Preferably, the audio transmission program unit is connected to the audio encoder and the baseband controller, respectively.

Preferably, the mode switching program unit is connected to the baseband controller and the flash memory module, respectively.

Preferably, the receiver further comprises an audio output interface, and an audio encoder within the receiver is configured to convert the digital audio signal into an analog audio signal and output the analog audio signal via the audio output interface.

Preferably, the transmitter further comprises a microphone for picking up an analog audio signal, and an audio encoder within the transmitter is for converting the analog audio signal picked up by the microphone into a digital audio signal.

Preferably, the communication mode includes a 2.4G private protocol communication mode, a BLE communication mode, a bluetooth dual mode communication mode, a Zigbee communication mode, and a communication mode in which any two of the above two modes are used in cooperation with each other.

Preferably, the wireless frequency band of the communication transceiver includes a 2.4ghz ism band, a UHF band, and a VHF band.

Preferably, the processing mode of the conversion between the communication data and the communication signal by the base band controller includes parallel-serial conversion, encoding and decoding, whitening and filtering processing.

The invention has the beneficial effects that: the wireless microphone system comprises a receiver and a plurality of transmitters which are respectively connected with the receiver in a communication mode, wherein the receiver and the transmitters comprise an MCU module, an input module, an audio codec, a baseband controller, a communication transceiver and a flash memory module, wherein the input module is connected with the MCU module, the input module is used for inputting control instructions into the MCU module, the audio codec is used for converting digital audio signals and analog audio signals, the baseband controller is used for converting communication data sent by the MCU module into communication signals and transmitting the communication signals to the communication transceiver, the baseband controller is used for converting communication signals received by the communication transceiver into communication data and transmitting the communication signals to the MCU module, the communication transceiver is used for receiving and transmitting communication signals, the flash memory module comprises a plurality of firmware which respectively corresponds to different communication modes, the MCU module reads one firmware in the MCU module, and the MCU module reconfigures the baseband to switch the communication modes so as to realize that a user can adjust the corresponding communication modes according to different scenes or different transceiver devices.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is a schematic diagram of a transmitter according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a receiver according to an embodiment of the present invention.

Reference numerals in the drawings: 100MCU module, 101 interactive program unit, 102 audio transmission program unit, 103 mode switching program unit, 200 input module, 201 keys, 202 touch screen, 300 audio codec, 400 baseband controller, 500 communication transceiver, 600 flash memory module, 700 microphone, 800 audio output interface.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 3, the present invention provides a wireless microphone system for multimode communication, which includes a receiver and a plurality of transmitters communicatively connected to the receiver, respectively, the receiver and the transmitters each include an MCU module 100, and an input module 200, an audio codec 300, a baseband controller 400, a communication transceiver 500, and a flash memory module 600 connected to the MCU module 100, the input module 200 is used for inputting control instructions into the MCU module 100, the audio codec 300 is used for converting communication data transmitted from the MCU module 100 into communication signals and transmitting the communication signals to the communication transceiver 500, and the baseband controller 400 is used for converting communication signals received from the communication transceiver 500 into communication data and transmitting the communication data to the MCU module 100, and the communication transceiver 500 is used for receiving and transmitting communication signals.

Specifically, the receiver may be communicatively connected to a plurality of transmitters, and may also be communicatively connected to a terminal device having the same communication protocol, such as a smart device, for example, a mobile phone, and may be controlled by an application on the mobile phone, where the combination of the modules in the receiver and the transmitter is substantially the same, and the difference is that the receiver further includes an audio output interface 800, an audio encoder in the receiver is used to convert a digital audio signal into an analog audio signal and play the analog audio signal through the audio output interface 800, and the audio output interface 800 may be externally connected to an external device such as a speaker to play the analog signal, and the transmitter further includes a microphone 700 for collecting the analog audio signal, and the audio encoder in the transmitter is used to convert the analog audio signal collected by the microphone 700 into the digital audio signal.

The flash memory module 600 includes a plurality of firmware corresponding to different communication modes, wherein the MCU module 100 reads one of the firmware in the flash memory module 600, and the MCU module 100 reconfigures the baseband controller 400 to switch the communication modes.

The communication modes include a 2.4G private protocol communication mode, a BLE communication mode, a bluetooth dual mode communication mode, a Zigbee communication mode, and a communication mode in which any two of the above two modes are mutually matched, and of course, the communication mode is not limited to the above modes and the common use of the modes, in this embodiment, the MCU module 100 reads the firmware of the corresponding working mode in the flash memory module 600 through the user setting and selects the firmware, and the corresponding baseband controller 400 also reconfigures to the communication mode of the corresponding firmware, so that the communication transceiver 500 can correspondingly convert the communication data into the communication signal according to the communication mode and play the communication signal to wait for the device in the same communication mode to connect with.

The radio frequency band of the communication transceiver 500 includes the 2.4ghz ism band, the UHF band, and the VHF band, and the radio frequency band of the communication transceiver 500 is not limited to the above-mentioned bands.

Further, the MCU module 100 includes an interactive program unit 101, an audio transmission program unit 102, and a mode switching program unit 103, the input module 200 includes a key 201 and a touch screen 202 both connected to the interactive program unit 101, the audio transmission program unit 102 is connected to the audio encoder and the baseband controller 400, and the mode switching program unit 103 is connected to the baseband controller 400 and the flash memory module 600, respectively.

Specifically, three execution programs are written in the MCU module 100 in advance, where the interactive program unit 101 is connected to the physical key 201 and the touch screen 202, and is used to receive and feed back a control instruction and an execution state of the device, where the physical key 201 is electrically connected to the interactive program unit 101 through GPIO, the touch screen 202 is electrically connected to the interactive program unit 101 through SPI bus, the audio codec 300 is electrically connected to the audio transmission program unit 102 through IIS, the baseband controller 400 is electrically connected to the audio transmission program unit 102 through AMBA, the flash memory module 600 is also electrically connected to the mode switching program unit 103 through SPI bus, the baseband controller 400 is electrically connected to the mode switching program unit 103 through UART, a user can operate the execution program through virtual keys on the physical key 201 or the touch screen 202, and select a mode, and the MCU module 100 reads the firmware of the corresponding communication mode in the flash memory module 600 through user setting and selects to switch the communication mode of the receiver or transmitter.

Further, the processing manner of the conversion between the communication data and the communication signal by the baseband controller 400 includes, but is not limited to, parallel-to-serial conversion, codec, whitening and filtering, wherein it should be noted that, after the communication data is received from the MCU module 100, the baseband controller 400 performs the processing manner described above on the communication data to convert the communication data into a communication signal, and the communication signal is sent by the communication transceiver 500 in a specified frequency band, otherwise, the communication transceiver 500 receives the communication signal from the outside and transmits the communication signal to the baseband controller 400, and at this time, the communication signal is converted into the communication data readable by the MCU module 100 in a manner opposite to the processing manner described above, so as to perform a subsequent communication operation.

The foregoing is merely exemplary of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the invention.

Claims

1. A wireless microphone system for multimode communication, comprising a receiver and a plurality of transmitters respectively connected with the receiver in a communication way, wherein the receiver and the transmitters comprise an MCU module, an input module connected with the MCU module, an audio codec, a baseband controller, a communication transceiver and a flash memory module;

the input module is used for inputting a control instruction into the MCU module;

the audio codec is used for converting between a digital audio signal and an analog audio signal;

the baseband controller is used for converting communication data sent by the MCU module into communication signals and transmitting the communication signals to the communication transceiver, and the baseband controller is used for converting communication signals received by the communication transceiver into communication data and transmitting the communication data to the MCU module;

the communication transceiver is used for receiving and transmitting communication signals;

the MCU module reads one firmware in the flash memory module, and reconfigures the baseband controller to switch the communication modes.

2. The wireless microphone system of claim 1, wherein the MCU module comprises an interactive program unit, an audio transmission program unit, and a mode switch program unit.

3. The wireless microphone system of claim 2, wherein the input module comprises a key and a touch screen each coupled to the interactive program element.

4. The wireless microphone system for multi-mode communication of claim 2 wherein the audio transmission program unit is coupled to an audio encoder and a baseband controller, respectively.

5. The wireless microphone system for multi-mode communication of claim 2, wherein the mode switching program unit is coupled to the baseband controller and the flash memory module, respectively.

6. The wireless microphone system for multi-mode communication of claim 1, wherein the receiver further comprises an audio output interface, and an audio encoder within the receiver is configured to convert digital audio signals to analog audio signals and output the analog audio signals through the audio output interface.

7. The wireless microphone system for multi-mode communication of claim 1 wherein the transmitter further comprises a microphone for capturing analog audio signals, the audio encoder within the transmitter being configured to convert the analog audio signals captured by the microphone into digital audio signals.

8. The wireless microphone system of claim 1, wherein the communication modes include a 2.4G private protocol communication mode, a BLE communication mode, a bluetooth dual mode communication mode, a Zigbee communication mode, and a communication mode in which any two of the above are used in combination with each other.

9. The wireless microphone system for multimode communication of claim 1, wherein the wireless frequency band of the communication transceiver comprises a 2.4ghz ism band, a UHF band, and a VHF band.

10. The wireless microphone system for multimode communication of claim 1, wherein the baseband controller processes the conversion between communication data and communication signals including parallel-to-serial conversion, codec, whitening, and filtering.