A multifunctional sound box intercom

Abstract

A multifunctional sound box intercom relates to the technical field of communication equipment, the loudspeaker is installed on the main shell, the main control panel is fixed by the main shell and the back cover, the main control panel is provided with the main control module and the MIC, the main control module includes the main control MCU, the radio module, the UHF intercom module and the audio processing module, the multifunctional knob, the antenna and the main control panel are electrically connected on the top of the main shell, the key group and the main control panel are electrically connected on the front upper portion of the main shell, the intercom key group and the main control panel are electrically connected on the side of the main shell, the integrated music playing and radio module can not only play music, but also can receive sound, thereby the functionality of the intercom is enriched, meanwhile, the intercom function priority is higher than the entertainment function, the intercom can be interrupted when playing music or receiving sound, the intercom function is used preferentially, and the music of one device can be played synchronously by using the broadcast protocol, the interactivity of the device is improved.

Description

Technical Field

[0001] This utility model relates to a multi-functional speaker walkie-talkie, and belongs to the field of communication equipment technology. Background Technology

[0002] In scenarios requiring close-range communication, walkie-talkies are often used to achieve close-range communication, facilitating one-to-one or one-to-many communication between users.

[0003] People often engage in group activities during leisure time, such as mountain climbing and cycling. Using walkie-talkies for communication can achieve better communication results than mobile phones. However, existing walkie-talkies are usually relatively simple in function, only providing communication capabilities. Outdoor activities often also require a higher level of entertainment. Therefore, existing technologies have integrated music playback systems into walkie-talkies to enrich their functionality. For example, patent CN212850486U discloses a method for implementing Bluetooth speaker functionality in a walkie-talkie. The method includes a walkie-talkie and a mobile terminal. The walkie-talkie includes a walkie-talkie module and a Bluetooth module. The walkie-talkie module includes a microphone and a speaker. The method includes the following steps: establishing a communication connection between the walkie-talkie and the mobile terminal through the Bluetooth module; establishing a communication connection between the walkie-talkies through the walkie-talkie module; and the mobile terminal emitting radio frequency signals through its Bluetooth antenna. This invention, after the Bluetooth module of the walkie-talkie initializes its initial Bluetooth function, if it receives a pairing command from a mobile terminal, establishes a communication connection between the walkie-talkie and the mobile terminal through the Bluetooth module. The mobile terminal emits radio frequency signals through its Bluetooth antenna, and the Bluetooth antenna of the Bluetooth module receives the radio frequency signals emitted by the mobile terminal. The received radio frequency signals are then processed by the control module to obtain analog audio signals, which are finally played through the walkie-talkie's speaker. However, this solution only has music playback functionality, which is still insufficient. Therefore, a multi-functional speaker walkie-talkie is proposed to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to address the defects or deficiencies in the existing technology by providing a multi-functional speaker walkie-talkie. By integrating a music playback and radio module, it can not only play music but also receive radio signals, thus enriching the functionality of the walkie-talkie. At the same time, the walkie-talkie function takes priority over the entertainment function. The walkie-talkie function can be interrupted when playing music or receiving radio signals, and the walkie-talkie function is used first. Furthermore, it can be used to play music from one device simultaneously to other devices via a broadcast protocol, thereby enhancing the interactivity of the devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a main housing 1 and a detachable back cover 2. The main housing 1 is provided with a speaker 3 and a main control board 5. The speaker 3 is installed on the main housing 1. The main control board 5 is constrained and fixed by the main housing 1 and the back cover 2. The main control board 5 is provided with a main control module and a microphone 4. The main control module includes a main control MCU 51, a radio module 52, and a UHF intercom module 53. The top of the main housing 1 is provided with a multi-function knob 6 and an antenna 8 electrically connected to the main control board 5. The upper front of the main housing 1 is provided with a button group 13 electrically connected to the main control board 5. The side of the main housing 1 is provided with an intercom button group 7 electrically connected to the main control board 5.

[0006] Furthermore, the main control MCU 51 adopts the AC6966B chip, which highly integrates the Bluetooth module and the audio processing module 54, supports MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, and AIFC decoding, has a signal-to-noise ratio of ≥90dB, and integrates speech synthesis function.

[0007] The radio module 52 uses the BK1088 radio chip, which supports FM 64-108MHz and AM 520-1710kHz frequency bands and has an automatic station scanning and storage function.

[0008] The UHF intercom module 53 uses the AT1846S chip, operates at a frequency of 400-470MHz, and has a built-in CTCSS codec.

[0009] Furthermore, the multi-functional knob 6 is a potentiometer with rotary variable resistance adjustment and switching functions.

[0010] Furthermore, the button group 13 includes a mode selection button, + and - buttons, and a play / pause button. The mode selection button is used to switch between music playback, radio, and intercom functions. The + and - buttons are used for volume adjustment and track switching, and also work with the BK1088 to store radio stations. The play / pause button is used for music playback control. The intercom button group 7 includes an intercom button 701, a share button 702, and an alarm button 703. The intercom button 701 is a forced intercom control button, which enables interruption operation to force entry into intercom mode. The share button 702 is a broadcast protocol execution button, which enables the source device to send broadcast protocol frames to the receiving device for synchronous audio playback. The alarm button 703 is an SOS distress button.

[0011] Furthermore, the audio processing module 54 has 200 commonly used prompt voices built-in to provide operation feedback prompts.

[0012] Furthermore, a memory card module 14 is provided on one side of the main control board 5, and a charging port 15 is provided on the other side of the memory card module 14. Both the memory card module 14 and the charging port 15 are electrically connected to the main control MCU 51.

[0013] Furthermore, a flashlight module 9 is provided on the top of the main housing 1 and electrically connected to the main control board 5, and a rechargeable battery 10 is provided on the bottom of the main housing 1 and electrically connected to the main control board 5.

[0014] Furthermore, a partition plate 201 is provided in the upper part of the rear cover 2 to form an upper control cavity and a lower sound cavity with the main housing 1, and a suspension spring 202 is provided in the middle of the outer side of the rear cover 2.

[0015] Furthermore, a charging and storage card slot is provided on one side of the main housing 1, and a waterproof cover 12 is provided on the charging and storage card slot.

[0016] Furthermore, the main housing 1 is provided with a speaker mounting hole 102 in the middle. The speaker mounting hole 102 is a recessed hole structure, and its end face is lower than the surface of the main housing 1. A decorative soundproof cover 11 is detachably provided at its end face position. The main housing 1 is provided with a pickup hole 101 corresponding to the MIC4 position.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by integrating the music playback and radio module, it can not only play music but also receive radio, thereby enriching the functionality of the walkie-talkie. At the same time, the walkie-talkie function has higher priority than the entertainment function. When playing music or receiving radio, the walkie-talkie function can be interrupted, and the walkie-talkie function can be used first. Moreover, the music of one device can be played synchronously on multiple devices through the broadcast protocol, which improves the interactivity of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 yes Figure 1 The second angle view;

[0021] Figure 3 yes Figure 1 The third-angle view;

[0022] Figure 4 yes Figure 1 A schematic diagram of the internal structure of the main housing 1 without its internal components;

[0023] Figure 5 yes Figure 3 Internal structure diagram after removing back cover 2;

[0024] Figure 6 This is an exploded structural diagram of the present invention.

[0025] Explanation of reference numerals in the attached diagram: Main housing 1, Rear cover 2, Speaker 3, MIC 4, Main control board 5, Multi-function knob 6, Intercom button group 7, Antenna 8, Flashlight module 9, Rechargeable battery 10, Decorative soundproof cover 11, Waterproof cover 12, Button group 13, Memory card module 14, Charging port 15, Main control MCU 51, Radio module 52, UHF intercom module 53, Audio processing module 54, Pickup hole 101, Speaker mounting hole 102, Partition plate 201, Suspension spring 202, Intercom button 701, Share button 702, Alarm button 703. Detailed Implementation

[0026] See Figures 1-6 As shown, the technical solution adopted in this specific embodiment is as follows: It includes a main housing 1 and a detachable back cover 2. The main housing 1 is equipped with a speaker 3 and a main control board 5. The speaker 3 is mounted on the main housing 1, and the main control board 5 is fixed by the main housing 1 and the back cover 2. The main control board 5 is equipped with a main control module and a microphone 4. The main control module includes a main control MCU 51, a radio module 52, a UHF intercom module 53, and an audio processing module 54. A multi-function knob 6 and an antenna 8 are electrically connected to the main control board 5 on the top of the main housing 1. A button group 13 is electrically connected to the main control board 5 on the upper front of the main housing 1, and an intercom button group 7 is electrically connected to the main control board 5 on the side of the main housing 1. Existing walkie-talkies have relatively simple functions, and since walkie-talkie usage scenarios are usually quite monotonous, it is necessary to enhance the entertainment functions of the walkie-talkie. To enhance the user experience, this embodiment incorporates music playback and radio functions within the walkie-talkie to improve entertainment. Furthermore, networking with multiple devices enhances interactivity. Specifically, the walkie-talkie module, consisting of a microphone, a UHF intercom module, and an audio processing module, forms the basic functional module. The microphone picks up the audio signal, which is then processed by the audio processing module to reduce noise and compress it before being sent to the UHF intercom module. The UHF intercom module 53 uses an AT1846S chip, operating at a frequency of 400-470MHz, and has a built-in codec supporting CTCSS sub-audio frequencies. It has a default configuration of 16 communication channels, expandable to 38 frequency groups, increasing the number of communication channels and enabling co-channel interference isolation to ensure stable signal transmission and enhanced privacy within the group. Radio frequency signals are then transmitted via an antenna to achieve stable and secure intercom communication.

[0027] In addition to basic intercom functions, a speaker and audio processing module are added, enabling the walkie-talkie to play audio. When used alone, music can be played to enhance entertainment. The audio processing module 54 supports MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, and AIFC decoding, with a signal-to-noise ratio ≥90dB. It also integrates voice synthesis functionality, implemented through the DSP digital signal processor built into the AC6966B chip, resulting in superior audio playback. Traditional walkie-talkies lack audio processing chips and use buzzers for alerts, while this new module... After the processing module, various voice prompts can be provided. In this embodiment, the audio processing module 54 has 20 built-in commonly used prompt voices to provide operation feedback prompts, such as Bluetooth connection function, pairing function, music sharing, VOX, etc. This makes it convenient for users to understand the specific practical situation through voice prompts when actually selecting different functions, reducing the likelihood of misoperation and improving the user experience. In addition, since the main control MCU 51 uses an AC6966B chip that integrates a Bluetooth module (Bluetooth 5.4), it can connect to external devices via Bluetooth, thereby playing external audio sources and providing a better user experience.

[0028] In addition to the audio playback function, this embodiment also includes a radio module. The radio module 52 uses a BK1088 radio chip. The BK1088 supports FM 64-108MHz and AM 520-1710kHz frequency bands and has an automatic station scanning and saving function. In radio mode, the + and - keys can be pressed briefly to select the corresponding station for listening. The station can also be saved for later direct selection and use without having to perform frequency tuning again, making it more convenient to use.

[0029] More specifically, the multi-function knob 6 is a potentiometer that functions as a rotary variable resistor for adjustment and switching. In this embodiment, under the overall control of the main control MCU, rotating the multi-function knob can be used for power-on / off operation and volume adjustment.

[0030] More specifically, the button group 13 includes a mode selection button, + and - buttons, and a play / pause button. The mode selection button is used to switch between music playback, radio, and intercom functions. The + and - buttons are used for volume adjustment and track switching, and also work with the BK1088 to store radio stations. The play / pause button is used for power on / off control and music playback control. In this embodiment, a button group is set up to select different function modes, which is represented by the M button for mode selection, the + and - buttons for adjusting volume or selecting tracks, and the triangle button for play / pause. The use of the combination buttons can make it easier for users to select the function they need and obtain a better user experience.

[0031] The intercom button group 7 includes an intercom button 701, a share button 702, and an alarm button 703. The intercom button 701 is a forced intercom control button, enabling forced entry into intercom mode after an interruption. The share button 702 is a broadcast protocol execution button, allowing the source device to send broadcast protocol frames to the receiving device for synchronized audio playback. The alarm button 703 is an SOS distress button. In this embodiment, the intercom function buttons are set separately, and sharing and distress functions are also added. The intercom button is represented as a PTT button, the share button as a C button, and the alarm button as an SOS button. When using the audio playback function but not the intercom function, the user can press the C button twice. When sharing mode is activated, the broadcast protocol is initiated. If all devices are new, pairing is required for first-time use to ensure secure communication between devices. The operation method is to press and hold the PTT intercom button 701 and then press the + and - buttons briefly. The device will read out the channel number, such as 1, 2, 3, 4...16, etc. Pairing is completed when the selected channel is on the same channel as the other device. When sharing audio between devices, after activating the broadcast protocol, the other devices will play the audio synchronously. In specific applications, synchronous playback in a network not only provides group entertainment but also enables unified playback of action commands in special scenarios without the need for verbal notification, effectively improving communication efficiency.

[0032] To provide rapid alerts in emergencies, an alarm key is set up. Double-clicking the SOS distress button triggers the alarm function, which will cut off all other functions and send an "emergency distress" voice message to networked devices on the same channel. The device's speaker will then broadcast the message at maximum volume in a loop so that group members can quickly locate and rescue the affected devices.

[0033] More specifically, a memory card module 14 is provided on one side of the main control board 5. The memory card module is a memory card slot, and a charging port 15 is provided on one side of the memory card module 14. Both the memory card module 14 and the charging port 15 are electrically connected to the main control MCU 51. In this embodiment, audio playback can be achieved not only through Bluetooth connection, but also by inserting a memory card into the memory card module for local audio playback, making the usage more flexible.

[0034] More specifically, the top of the main housing 1 is also provided with a flashlight module 9 which is electrically connected to the main control board 5, and the bottom of the main housing 1 is provided with a rechargeable battery 10 which is electrically connected to the main control board 5. In this embodiment, the use of the light module is selected by clicking the S key, which is convenient for use in low light or at night. At the same time, the light module also works in conjunction with the distress signal. After the distress signal is sent, the light module enters the fast flash mode, which facilitates the search and rescue by rescuers.

[0035] More specifically, the upper part of the back cover 2 is provided with a partition plate 201 to form an upper control cavity and a lower sound cavity with the main housing 1. The partition plate can form a separate resonance cavity to obtain better sound quality. The middle part of the outer side of the back cover 2 is provided with a suspension spring 202. The suspension spring makes it convenient to wear and use the walkie-talkie, freeing up the hands.

[0036] More specifically, a charging and memory card slot is also provided on one side of the main housing 1. A waterproof cover 12 is provided on the charging and memory card slot. The charging and memory card slot is matched with the position of the memory card module and the charging port. A silicone waterproof cover is provided on it for waterproof protection.

[0037] More specifically, the main housing 1 has a speaker mounting hole 102 in the middle. The speaker mounting hole 102 is a recessed hole structure, and its end face is lower than the surface of the main housing 1. This design makes it convenient to install the speaker in the recessed hole position. A decorative sound-transmitting cover 11 is detachably provided at its end face position. The decorative sound-transmitting cover has several through holes, which not only serve a decorative purpose but also facilitate the propagation of speaker sound. At the same time, the detachable structure facilitates the disassembly and assembly of the speaker. The main housing 1 has a pickup hole 101 corresponding to the MIC4 position. The pickup hole is designed to facilitate accurate sound pickup by the MIC.

[0038] The working principle of this utility model is as follows: Rotate the multi-function knob 6 to power on the device and put it into the power-on state. The device has four working modes: Mode 1 Music Mode, Mode 2 Walkie-Talkie Mode, Mode 3 Walkie-Talkie and Music Mixed Mode, and Mode 4 Radio Mode. After powering on, the device automatically enters Mode 1 Music Mode.

[0039] Mode 1 Music Mode: After entering this mode, Bluetooth is enabled, and the device waits for external devices such as mobile phones to pair and connect. Once the connection is successful, a Bluetooth connection success prompt voice will be played. After pairing is complete, audio signals can be transmitted from external devices to the audio processing module 54 for audio decoding. After decoding, audio will be played through the speaker 3. When a memory card with music files is inserted into the memory card module 14, a TF card playback prompt voice will be played. At this time, Bluetooth is turned off, and the device decodes and plays the music files on the memory card.

[0040] Mode 2 Walkie-Talkie Mode: Press the M key to enter Mode 2 Walkie-Talkie Mode, accompanied by a walkie-talkie mode prompt voice. After entering this mode, pairing is required. All devices to be networked should press and hold the PTT key 701 and then short press the + and - keys to select a channel from 1-16 preset channels. This will put all devices on the same channel, completing the walkie-talkie network pairing. In this state, press and hold the PTT key 701 to communicate with members within the channel, and release the key 701 to end the communication.

[0041] Mode 3: Mixed Music and Intercom Mode: When you need to use the intercom function and also want to listen to music, you can press the M key briefly to enter the mixed mode. When no intercom signal is received, the device is in music playback mode. Once an intercom signal is received, music playback will be paused and intercom voice will be played first. If you want to send an intercom signal, press and hold the PTT intercom key 701 to send a voice message. Music playback will be paused and intercom voice will be sent first. Release the PTT intercom key 701 to resume music playback.

[0042] When playing audio, users can choose to use it individually or send a sharing signal by pressing the share button 702 twice. This sharing signal is also a broadcast protocol, and other devices on the same channel will synchronously play the audio from the sharing device. If communication with all members is required during playback, press the intercom button 701. Since the intercom function has the highest priority, the intercom operation is prioritized by interrupting playback. Releasing the intercom button 701 will resume music playback.

[0043] Mode 4 Radio Mode: Press the M key to enter radio mode. You can search for radio stations by long-pressing the play / pause key. After the search is complete, use the + and - keys to select different stations to listen to. Multiple function options bring users richer entertainment features, say goodbye to monotonous intercom and improve the user experience.

[0044] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A multi-functional speaker walkie-talkie, comprising a main housing (1) and a detachable rear cover (2) disposed on its back, characterized in that: The main housing (1) is provided with a speaker (3) and a main control board (5). The speaker (3) is installed on the main housing (1). The main control board (5) is constrained and fixed by the main housing (1) and the rear cover (2). The main control board (5) is provided with a main control module and a microphone (4). The main control module includes a main control MCU (51), a radio module (52), and a UHF intercom module (53). The top of the main housing (1) is provided with a multi-function knob (6) and an antenna (8) that are electrically connected to the main control board (5). The upper front of the main housing (1) is provided with a button group (13) that is electrically connected to the main control board (5). The side of the main housing (1) is provided with an intercom button group (7) that is electrically connected to the main control board (5).

2. The multi-functional speaker walkie-talkie according to claim 1, characterized in that: The main control MCU (51) adopts the AC6966B chip, which highly integrates the Bluetooth module and the audio processing module (54), supports MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, AIFC decoding, has a signal-to-noise ratio of ≥90dB, and integrates speech synthesis function. The radio module (52) uses the BK1088 radio chip. The BK1088 supports FM 64-108MHz and AM 520-1710kHz frequency bands and has an automatic station scanning and storage function. The UHF intercom module (53) uses the AT1846S chip, operates at a frequency of 400-470MHz, and has a built-in CTCSS codec.

3. The multi-functional speaker walkie-talkie according to claim 1, characterized in that: The multi-functional knob (6) is a potentiometer with rotary variable resistance adjustment and switching functions.

4. A multi-functional speaker walkie-talkie according to claim 1, characterized in that: The button group (13) includes a mode selection button, + and - buttons, and a play / pause button. The mode selection button is used to select and switch between music playback, radio, and intercom functions. The + and - buttons are used for volume adjustment and track switching, and also work with BK1088 to store radio stations. The play / pause button is used for music playback control. The intercom button group (7) includes an intercom button (701), a share button (702), and an alarm button (703). The intercom button (701) is a forced intercom control button, which enables interruption operation to force entry into intercom mode. The share button (702) is a broadcast protocol execution button, which enables the source device to send broadcast protocol frames to the receiving device for audio synchronous playback. The alarm button (703) is an SOS distress button.

5. A multi-functional speaker walkie-talkie according to claim 2, characterized in that: The audio processing module (54) has 200 commonly used prompt voices built-in to provide operation feedback prompts.

6. A multi-functional speaker walkie-talkie according to claim 1, characterized in that: The main control board (5) is provided with a memory card module (14) on one side and a charging port (15) on the other side. Both the memory card module (14) and the charging port (15) are electrically connected to the main control MCU (51).

7. A multi-functional speaker walkie-talkie according to claim 1, characterized in that: The main housing (1) is also provided with a flashlight module (9) at the top, which is electrically connected to the main control board (5), and a rechargeable battery (10) at the bottom of the main housing (1), which is electrically connected to the main control board (5).

8. A multi-functional speaker walkie-talkie according to claim 1, characterized in that: The upper part of the rear cover (2) is provided with a partition plate (201) to form an upper control cavity and a lower sound cavity in conjunction with the main shell (1). A suspension spring (202) is provided in the middle of the outer side of the rear cover (2).

9. A multi-functional speaker walkie-talkie according to claim 1, characterized in that: The main housing (1) is also provided with a charging and storage card slot on one side, and a waterproof cover (12) is provided on the charging and storage card slot.

10. A multi-functional speaker walkie-talkie according to claim 1, characterized in that: The main housing (1) is provided with a speaker mounting hole (102) in the middle. The speaker mounting hole (102) is a recessed hole structure, and its end face is lower than the surface of the main housing (1). A decorative soundproof cover (11) is detachably provided at its end face position. The main housing (1) is provided with a pickup hole (101) corresponding to the MIC (4) position.

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