Display and audio broadcasting method and system based on automatic takeover of wireless hailing

Abstract

The application discloses a display and audio broadcasting method and system based on wireless shouting automatic takeover, wherein the system continuously detects the wireless radio frequency connection state in the state that the playing device automatically plays the recorded audio and synchronously displays the program picture; when the microphone emission module is accessed, the display control instruction can be sent to the playing module in addition to shouting, so as to directly control the LED screen to switch the display program; after the audio receiving unit receives the audio signal, in addition to executing the sound source switching, the specific voice instruction carried in the audio signal is identified, the identification result is sent to the LED screen playing picture unit, and the LED screen playing picture unit switches the corresponding program according to the instruction; after the shouting is ended or the radio frequency is disconnected, the system automatically restores the recorded audio output and the default picture. The scheme realizes the integrated linkage control of the audio and the display, supports the voice instruction remote switching of the display program, has the audio priority switching and picture linkage technology without manual intervention, realizes the quick automatic takeover of the emergency shouting signal and the synchronous control function of the display content.

Description

Technical Field

[0001] This application relates to the field of intelligent control system technology for mining areas, specifically to a display and audio broadcast control method and system based on wireless announcement automatic takeover. Background Technology

[0002] With the widespread application of LED splicing display systems in mining dispatch centers, industrial sites, public address systems, and large display terminals, these systems are typically equipped with fixed audio source playback devices for background music, voice prompts, or video audio output.

[0003] In practical applications, temporary manual announcements or emergency broadcasts are frequently required, but existing systems generally suffer from the following problems: they require manual switching of audio input sources; the audio mixing equipment is complex and requires professional personnel to operate; they cannot automatically identify the priority of emergency voices; wireless microphones are subject to environmental noise interference; the microphone system and the LED playback system are independent of each other; and they cannot achieve automatic takeover and automatic recovery. In scenarios such as mine dispatching, industrial site command, and public emergency broadcasting, the response speed and voice clarity of emergency announcements directly affect safety and efficiency. Summary of the Invention

[0004] To overcome the above-mentioned shortcomings, the purpose of this application is to provide a display and audio broadcast control method and system based on wireless voice automatic takeover, so as to realize the integrated linkage control of audio and display content, support remote switching of display programs through voice commands, and thus effectively solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this application adopts the following technical solution: This application provides a display and audio playback control method based on wireless announcement automatic takeover, including: While the playback device automatically plays the recorded audio and simultaneously displays the program screen, the wireless radio frequency connection status is continuously monitored. Based on the wireless radio frequency connection microphone voice input signal state, the microphone voice input signal is identified, and the display control command issued by the microphone transmitting module is received simultaneously; The system automatically analyzes and determines that the microphone's voice input signal has a higher priority than the recorded audio. Based on the judgment result, the audio source is automatically switched, the recording audio output of the playback device is interrupted and switched to the real-time audio output of the microphone, and the display program of the LED screen playback unit is switched according to the display control command. After receiving the audio signal, the audio receiving unit identifies the specific voice command carried in it and sends the command to the playback screen unit of the LED screen. The playback screen unit then switches the corresponding displayed program according to the command content. When the microphone voice input signal is disconnected due to wireless radio frequency disconnection, the broadcast display device automatically resumes the recorded audio output and default program screen display.

[0006] Furthermore, the playback device automatically plays audio while simultaneously activating an image display mode, which includes displaying program images on the LED screen; during the takeover period, the LED screen synchronously switches to the corresponding program image according to the received display control command.

[0007] Furthermore, the microphone's real-time audio undergoes AI voice noise reduction processing before being output and played back. This AI voice noise reduction processing also enhances the recognition of specific voice commands in the audio, thereby improving the accuracy of voice command recognition.

[0008] This application also provides a display and audio playback control system based on wireless loudspeaker automatic takeover, the system being used to execute the aforementioned display and audio playback control method based on wireless loudspeaker automatic takeover, the system comprising: The playback module plays audio and drives the LED screen to display images. The wireless radio frequency microphone transmitting module transmits wireless radio frequency microphone signals and simultaneously sends display control commands to the playback module; A wireless radio frequency microphone receiver module receives wireless radio frequency microphone signals and the display control commands carried therein; The audio switching main control module identifies the microphone voice input signal and determines the priority of the microphone voice input signal and the recorded audio, and automatically switches the audio output based on the determination result; The voice command recognition and screen switching module recognizes specific voice commands from the audio signal received by the audio receiving unit and sends the recognition results to the playback screen unit of the playback module, which then switches the corresponding displayed program.

[0009] Furthermore, the playback module includes: The LED display unit outputs image display, receives program switching commands from the voice command recognition and picture switching module, and executes corresponding program picture switching. Audio amplifier unit, outputting microphone audio and recording audio amplifier.

[0010] Furthermore, the wireless radio frequency microphone transmitting module includes: The microphone pickup unit captures sound. The digital encoding unit encodes the microphone audio signal. The display control instruction generation unit generates corresponding display control instructions based on the operation input. The display control instructions are used to control the LED display unit in the playback module to switch the displayed program. Battery-powered unit, The radio frequency (RF) transmitter unit transmits microphone audio signals and display control commands together via a wireless RF channel.

[0011] Furthermore, the wireless radio frequency microphone transmitting module also includes: The AI ​​noise processing unit performs AI noise reduction processing on the sound captured by the microphone.

[0012] Furthermore, the wireless radio frequency microphone receiving module includes: The radio frequency (RF) receiver unit receives signals from the wireless RF microphone. The digital audio decoding unit decodes the microphone audio signals. The instruction parsing unit parses and extracts display control instructions and specific voice instructions from the received radio frequency signals, and forwards them to the audio switching main control module and the voice instruction recognition and screen switching module, respectively. The audio output interface connects to the audio input interface of the playback module.

[0013] Furthermore, the wireless radio frequency microphone receiving module also includes: The signal status detection unit detects the signal status of the wireless radio frequency microphone signal and triggers the audio switching main control module to execute the status recovery process when the signal is lost. At the same time, it triggers the LED display unit to restore the default program display.

[0014] Furthermore, the audio switching main control module includes: The radio frequency (RF) connection detection unit detects the connection status of the wireless RF signal. The audio priority determination unit determines the priority of microphone audio and recorded audio. The audio switching unit performs audio switching based on the priority determination result of microphone audio and recorded audio. The status recovery unit restores the default output state of the audio signal after the wireless radio frequency signal is disconnected, and triggers the LED display unit to restore the default program picture.

[0015] Beneficial effects This application provides a display and audio broadcast control method and system based on wireless announcement automatic takeover. It achieves millisecond-level automatic takeover of emergency announcements without manual switching, reducing operational complexity. The wireless radio frequency microphone transmitting module, while performing the announcement function, also has the ability to control the content displayed on the LED screen, realizing the integration of announcement and screen control. The audio receiving unit, by recognizing specific voice commands, can directly trigger the LED screen's playback screen unit to switch the corresponding display program, realizing voice-driven intelligent screen linkage control. The system improves voice clarity and noise resistance, ensures the priority of emergency voices, reduces system wiring complexity, improves the reliability of emergency broadcasts, achieves integrated management of display and audio, adapts to complex industrial and mining environments, and automatically restores the original playback audio and default screen after the announcement ends, constructing an intelligent, low-latency, and highly reliable LED broadcast control system. Attached Figure Description

[0016] The accompanying drawings are provided to illustrate the technical solutions of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure. The shapes and sizes of the components in the drawings do not reflect actual proportions and are only intended to illustrate the content of this application.

[0017] Figure 1 This is an overall system block diagram provided for an embodiment of this application.

[0018] Figure 2 This is a system block diagram of a wireless radio frequency microphone transmitting module provided in an embodiment of this application.

[0019] Figure 3 This is a system block diagram of a wireless radio frequency microphone receiving module provided in an embodiment of this application.

[0020] Figure 4 This is a system block diagram of an audio switching main control module provided in an embodiment of this application.

[0021] Figure 5 This is a system block diagram of a voice command recognition and screen switching module provided in an embodiment of this application.

[0022] Figure 6 A flowchart of a control method provided in another embodiment of this application. Detailed Implementation

[0023] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0024] Unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this document, "electrical connection" includes the situation where constituent elements are connected together by an element having some electrical function. There is no particular limitation on the "electrically functioning element," as long as it enables the transmission and reception of electrical signals between the connected constituent elements. An "electrically functioning element" can be, for example, an electrode or wiring, a switching element such as a transistor, or other functional elements such as a resistor, inductor, or capacitor. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] In this application, the terms "upper," "lower," "inner," "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Example 1 One embodiment of this application provides a display and audio broadcast control system based on wireless announcement automatic takeover. like Figure 1-5 As shown, the system includes: The playback module includes an LED display unit and an audio amplifier unit; the LED display unit is used to display images, receive program switching commands from the voice command recognition and image switching module, and execute corresponding program image switching; the audio amplifier unit is used to amplify microphone audio and record audio.

[0027] The wireless radio frequency microphone transmitting module includes a microphone pickup unit for sound acquisition; a digital encoding unit for encoding the microphone audio signal; a display control command generation unit for generating corresponding display control commands based on operator input (such as button selection), which are transmitted along with the microphone audio signal via a radio frequency channel to control the LED display unit to switch displayed programs; a battery power supply unit for system power supply; a radio frequency transmitting unit for transmitting the microphone audio signal and display control commands together via a wireless radio frequency channel; and an AI noise processing unit for AI noise reduction processing of the sound acquired by the microphone. This unit uses an AI noise cancellation processing chip and AI algorithms to perform real-time noise reduction, echo suppression, and voice enhancement on the speech, while also preprocessing the speech command signal to improve the accuracy of backend recognition.

[0028] The wireless radio frequency microphone receiving module includes a radio frequency receiving unit for receiving wireless radio frequency microphone signals; a digital audio decoding unit for decoding microphone audio signals; a command parsing unit for parsing and extracting display control commands and specific voice commands from the received radio frequency signals, and forwarding them to the audio switching main control module and the voice command recognition and screen switching module, respectively; an audio output interface for connecting to the audio input interface of the playback module; and a signal status detection unit for detecting the signal status of the wireless radio frequency microphone signal and triggering a status recovery process when the signal is lost.

[0029] The audio switching main control module includes a radio frequency connection detection unit to detect the connection status of the wireless radio frequency signal; an audio priority determination unit to determine the priority of the microphone audio and the recorded audio. In this embodiment, the microphone priority is set to be greater than the recorded audio priority, realizing automatic takeover in milliseconds for emergency announcements; an audio switching unit to perform audio switching based on the priority determination results of the microphone audio and the recorded audio, eliminating the need for manual switching and reducing operational complexity; and a status recovery unit to restore the default output state of the audio signal after the wireless radio frequency signal is disconnected, and to trigger the LED display unit to restore the default program screen. The entire switching delay is less than 50 milliseconds.

[0030] The voice command recognition and screen switching module recognizes and parses specific voice commands from the audio signal received by the audio receiving unit. The recognition result is sent to the LED display unit (playback screen unit) of the playback module, which then switches the displayed program according to the command content. For example, if an operator shouts preset commands such as "switch to program one" or "display safety reminder" through the microphone, the system automatically recognizes and drives the LED screen to switch to the corresponding program screen, realizing voice-driven intelligent screen linkage control.

[0031] The system works as follows: Under normal playback conditions, the playback box outputs program audio to the power amplifier, and the LED screen synchronously displays the corresponding program video. When the handheld wireless microphone is turned on and successfully connected: the system automatically recognizes the radio frequency signal, activates the voice takeover mode, and switches to microphone voice output; if the microphone transmitting module issues a display control command, the LED screen synchronously switches to the specified program video; if the operator issues a specific command via voice, the voice command recognition and video switching module recognizes the command and drives the LED screen to switch programs; after the voice command ends, the system automatically restores the program playback state and default video display, achieving seamless linkage switching between audio and display.

[0032] Example 2 Another embodiment of this application provides a display and audio playback control method based on wireless announcement automatic takeover, such as... Figure 6 As shown, the control method includes the following steps: S1. While the playback device is automatically playing the recorded audio and simultaneously displaying the program screen, continuously monitor the wireless radio frequency connection status. S2. When the microphone is connected to the wireless radio frequency transmitter module, identify the microphone voice input signal and simultaneously receive the display control command issued by the microphone transmitter module. S3. Automatically analyze and determine the audio priority to determine that the microphone voice input signal has a higher priority than the recorded audio. S4. Based on the judgment result, automatically switch the audio source, interrupt the recording audio output of the playback device and switch to the real-time audio output of the microphone; at the same time, based on the received display control command, switch the display program of the LED screen playback unit. S5. The audio receiving unit recognizes the specific voice commands carried in the audio signal and sends the recognition results to the playback screen unit of the LED screen. The playback screen unit then switches the corresponding display program according to the command content. S6. When the microphone voice input signal is disconnected due to wireless radio frequency disconnection, the broadcast display device automatically resumes the recorded audio output and the default program screen display.

[0033] In the above embodiments, the playback device automatically plays audio while simultaneously activating the image display mode.

[0034] The microphone's real-time audio undergoes AI-powered voice noise reduction processing before being output and played back. This noise reduction process also enhances specific voice commands to improve recognition accuracy.

[0035] This system features an automatic takeover mechanism for wireless announcement signals, an integrated control structure for LED playback and public address, voice-command-driven video switching, an AI noise-reducing microphone embedded broadcast control system, audio priority switching technology without human intervention, and a low-latency automatic audio and video recovery mechanism, thus constructing an intelligent broadcast control platform that links display and announcement.

[0036] The above embodiments are only for illustrating the technical concept and features of this application, and are intended to enable those skilled in the art to understand the content of this application and implement it accordingly. They should not be used to limit the scope of protection of this application. All equivalent changes or modifications made in accordance with the spirit and essence of this application should be included within the scope of protection of this application.

Claims

1. A display and audio playback control method based on wireless announcement automatic takeover, characterized in that: include: While the playback device automatically plays the recorded audio and simultaneously displays the program screen, the wireless radio frequency connection status is continuously monitored. Based on the wireless radio frequency connection microphone voice input signal state, the microphone voice input signal is identified, and the display control command issued by the microphone transmitting module is received simultaneously; The system automatically analyzes and determines that the microphone's voice input signal has a higher priority than the recorded audio. Based on the judgment result, the audio source is automatically switched, the recording audio output of the playback device is interrupted and switched to the real-time audio output of the microphone, and the display program of the LED screen playback unit is switched according to the display control command. After receiving the audio signal, the audio receiving unit identifies the specific voice command carried in it and sends the command to the playback screen unit of the LED screen. The playback screen unit then switches the corresponding displayed program according to the command content. When the microphone voice input signal is disconnected due to wireless radio frequency disconnection, the broadcast display device automatically resumes the recorded audio output and default program screen display.

2. The display and audio playback control method based on wireless announcement automatic takeover as described in claim 1, characterized in that: The playback device automatically plays audio while simultaneously activating the video display mode, which includes the display of program images on the LED screen; during the takeover period, the LED screen synchronously switches to the corresponding program image according to the received display control command.

3. The display and audio playback control method based on wireless announcement automatic takeover as described in claim 1, characterized in that: The microphone's real-time audio undergoes AI voice noise reduction processing before being output and played back. This AI voice noise reduction processing also enhances the recognition of specific voice commands in the audio, thereby improving the accuracy of voice command recognition.

4. A display and audio broadcast control system based on wireless announcement automatic takeover, characterized in that: The system is used to execute the display and audio playback control method based on wireless announcement automatic takeover as described in any one of claims 1-3, and the system includes: The playback module plays audio and drives the LED screen to display images. The wireless radio frequency microphone transmitting module transmits wireless radio frequency microphone signals and simultaneously sends display control commands to the playback module; A wireless radio frequency microphone receiver module receives wireless radio frequency microphone signals and the display control commands carried therein; The audio switching main control module identifies the microphone voice input signal and determines the priority of the microphone voice input signal and the recorded audio, and automatically switches the audio output based on the determination result; The voice command recognition and screen switching module recognizes specific voice commands from the audio signal received by the audio receiving unit and sends the recognition results to the playback screen unit of the playback module, which then switches the corresponding displayed program.

5. The display and audio broadcast control system based on wireless announcement automatic takeover as described in claim 4, characterized in that: The playback module includes: The LED display unit outputs image display, receives program switching commands from the voice command recognition and picture switching module, and executes corresponding program picture switching. Audio amplifier unit, outputting microphone audio and recording audio amplifier.

6. The display and audio broadcast control system based on wireless announcement automatic takeover as described in claim 4, characterized in that: The wireless radio frequency microphone transmitting module includes: The microphone pickup unit captures sound. The digital encoding unit encodes the microphone audio signal. The display control instruction generation unit generates corresponding display control instructions based on the operation input. The display control instructions are used to control the LED display unit in the playback module to switch the displayed program. Battery-powered unit, The radio frequency (RF) transmitter unit transmits microphone audio signals and display control commands together via a wireless RF channel.

7. The display and audio broadcast control system based on wireless announcement automatic takeover as described in claim 6, characterized in that: The wireless radio frequency microphone transmitting module also includes: The AI ​​noise processing unit performs AI noise reduction processing on the sound captured by the microphone.

8. The display and audio broadcast control system based on wireless announcement automatic takeover as described in claim 4, characterized in that: The wireless radio frequency microphone receiving module includes: The radio frequency (RF) receiver unit receives signals from the wireless RF microphone. The digital audio decoding unit decodes the microphone audio signals. The instruction parsing unit parses and extracts display control instructions and specific voice instructions from the received radio frequency signals, and forwards them to the audio switching main control module and the voice instruction recognition and screen switching module, respectively. The audio output interface connects to the audio input interface of the playback module.

9. The display and audio broadcast control system based on wireless announcement automatic takeover as described in claim 8, characterized in that: The wireless radio frequency microphone receiver module also includes: The signal status detection unit detects the signal status of the wireless radio frequency microphone signal and triggers the audio switching main control module to execute the status recovery process when the signal is lost. At the same time, it triggers the LED display unit to restore the default program display.

10. The display and audio broadcast control system based on wireless announcement automatic takeover as described in claim 4, characterized in that: The audio switching main control module includes: The radio frequency (RF) connection detection unit detects the connection status of the wireless RF signal. The audio priority determination unit determines the priority of microphone audio and recorded audio. The audio switching unit performs audio switching based on the priority determination result of microphone audio and recorded audio. The status recovery unit restores the default output state of the audio signal after the wireless radio frequency signal is disconnected, and triggers the LED display unit to restore the default program picture.

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