Voice guide and voice guide system

Abstract

The invention discloses a voice guide and a voice guide system, and relates to the technical field of electronics. Noise can be reduced, and the use experience of a user on the navigation equipment is improved. The voice navigator comprises a hat body and a hat brim, the Bluetooth chip is arranged on the cap body and is used for starting a Bluetooth connection mode and a Bluetooth broadcast mode to carry out wireless communication; the audio processing module is arranged on the helmet body and is electrically connected with the Bluetooth chip; the first microphone is electrically connected with the audio processing module and is used for receiving a voice audio signal; and the second microphone is electrically connected with the audio processing module and is used for receiving an environment audio signal.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and more particularly to a voice guide and a voice guide system. Background Art

[0002] Some scenic areas are equipped with self-service audio guides, allowing tourists to access audio explanations by entering the area's code or scanning a QR code, greatly facilitating their experience. However, due to the large number of tourists and noisy environment within scenic areas, the audio signals of these guides are easily interfered with by ambient noise, making it difficult for tourists to hear the devices or the guides clearly. Summary of the Invention

[0003] This application provides a voice guide and a voice guide system that can reduce noise in the audio signal, making it easier for tourists to hear the audio signal of the device more clearly.

[0004] In a first aspect, this application provides a voice navigation device, including:

[0005] Hat body and brim;

[0006] A Bluetooth chip is mounted on the cap body and is used to enable Bluetooth connection mode and Bluetooth broadcast mode for wireless communication.

[0007] An audio processing module is disposed on the cap body and electrically connected to the Bluetooth chip;

[0008] The first microphone is electrically connected to the audio processing module and is used to receive voice audio signals;

[0009] The second microphone is electrically connected to the audio processing module and is used to receive ambient audio signals.

[0010] The voice guide provided in this embodiment includes a brim and a hat body, forming an overall hat shape that is wearable and reduces the inconvenience of carrying it. Furthermore, the hat can shield the user from the sun and improve the user's wearing experience. The voice guide also includes a Bluetooth chip that can operate in Bluetooth connection mode or Bluetooth broadcast mode, enhancing the usage scenarios of the voice guide. Finally, the voice guide provided in this embodiment includes two microphones to receive voice audio signals and environmental audio signals respectively. An audio processing module processes these two types of audio signals, which helps reduce noise interference in the voice audio signals, allowing tourists to have a better guided tour experience even in noisy environments.

[0011] In the above scheme, the first microphone, the second microphone, the Bluetooth chip, and the audio processing module are all located on the main control circuit board; the main control circuit board is located inside the hat body on the side near the brim.

[0012] In the above scheme, the main control circuit board is located on the left or right side of the cap, the first microphone is located at the lower edge of the main control circuit board, and the second microphone is located at the upper edge of the main control circuit board away from the first microphone.

[0013] In the above scheme, the voice audio signal received by the first microphone is transmitted to the audio processing module, and the ambient audio signal received by the second microphone is transmitted to the audio processing module. The audio processing module performs noise reduction processing on the voice audio signal using the ambient audio signal.

[0014] In the above solution, the main control circuit board is also connected to a control button, which controls the Bluetooth chip to enable Bluetooth connection mode or Bluetooth broadcast mode; in Bluetooth connection mode, the Bluetooth chip connects to an external Bluetooth device; in Bluetooth broadcast mode, the Bluetooth chip transmits or receives broadcast audio signals.

[0015] The above scheme also includes: an RF amplifier chip electrically connected to the Bluetooth chip; when the Bluetooth broadcast mode is Bluetooth broadcast transmission mode, the Bluetooth chip sends pairing information and broadcast audio signals through the RF amplifier chip, the broadcast audio signals being signals processed by the audio processing module; when the Bluetooth broadcast mode is Bluetooth broadcast reception mode, the Bluetooth chip establishes a Bluetooth broadcast network connection based on the received pairing information and plays the broadcast audio signals received from the Bluetooth broadcast network.

[0016] In the above solution, the voice guide also includes a Bluetooth antenna, which is electrically connected to the Bluetooth chip. The Bluetooth antenna is located at the edge of the cap brim away from the main control circuit board.

[0017] In the above scheme, a solar charging panel is laid on the brim of the hat and electrically connected to the main control circuit board to convert solar energy into electrical energy to power the Bluetooth chip; the main control circuit board is also provided with a charging port for connecting a charger to power the Bluetooth chip; the charging port is located at the edge of the hat body.

[0018] In the above solution, the voice guide also includes a power management unit and a battery. The main control circuit board is electrically connected to the power management unit and the battery respectively. The charging port and the solar charging panel are both electrically connected to the power management unit, and the charging circuit is switched through the power management unit.

[0019] Secondly, this application provides a voice navigation system, including a Bluetooth chip, an audio processing module, and a first microphone and a second microphone. The Bluetooth chip operates in two modes: a Bluetooth connection mode and a Bluetooth broadcast mode. It receives voice audio signals through the first microphone and ambient audio signals through the second microphone. The audio processing module processes the voice audio signals and the ambient audio signals. Based on user control, the system controls the Bluetooth chip to activate either the Bluetooth connection mode or the Bluetooth broadcast mode. In the Bluetooth connection mode, the system controls the Bluetooth chip to connect to an external Bluetooth device. In the Bluetooth broadcast mode, the system controls the Bluetooth chip to establish a Bluetooth broadcast network and transmits the broadcast audio signal processed by the audio processing module through the Bluetooth broadcast network. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the voice guide provided in the embodiments of this application. Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of the voice guide provided in the embodiments of this application. Figure 2 ;

[0022] Figure 3 A schematic diagram of the structure of the voice guide provided in the embodiments of this application. Figure 3 ;

[0023] Figure 4 A schematic diagram of the structure of the voice guide provided in the embodiments of this application. Figure 4 ;

[0024] Figure 5 This is a schematic diagram of the main control circuit board in the voice guide provided in the embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0026] To facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. For example, "first chip" and "second chip" are only used to distinguish different chips and do not limit their order. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" do not necessarily imply that they are different. It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being better or more advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner. In the embodiments of this application, "at least one" means one or more, and "more than one" means two or more.

[0027] It should be noted that "at the time of..." in the embodiments of this application can be either at the instant when a certain situation occurs, or for a period of time after the occurrence of a certain situation. The embodiments of this application do not make specific limitations on this.

[0028] The implementation of this embodiment will now be described in detail with reference to the accompanying drawings.

[0029] This embodiment provides a voice guide that can provide users with voice guidance services and Bluetooth services.

[0030] Figure 1 A schematic diagram of the structure of the voice guide provided in an embodiment of this application is shown.

[0031] like Figure 1 As shown, the voice guide may include a hat body and a brim. A Bluetooth chip is disposed on the hat body for enabling Bluetooth connection mode and Bluetooth broadcast mode for wireless communication; an audio processing module is disposed on the hat body and electrically connected to the Bluetooth chip; a first microphone is electrically connected to the audio processing module for receiving voice audio signals; and a second microphone is electrically connected to the audio processing module for receiving ambient audio signals.

[0032] Here, the hat body refers to the shell structure that covers the head. In this embodiment, the hat body can be an open-top design and is extendable, allowing for flexible adjustments to the hat circumference to suit the needs of different users. The brim refers to the forward-extending sun-shading portion, and its size can be set according to actual requirements.

[0033] The Bluetooth chip can be an integrated circuit module that supports various Bluetooth protocols, transmitting and receiving Bluetooth signals through built-in radio frequency circuitry. The audio processing module refers to a circuit unit containing a digital signal processor, used to execute noise reduction algorithms. The first microphone can be a directional electret microphone, installed close to the user's mouth area to directionally collect speech. The second microphone can be a wideband condenser microphone, installed away from the speech acquisition area to capture ambient sound field characteristics.

[0034] This embodiment integrates a dual-microphone acquisition system and an audio processing module into the cap. While the first microphone directionally acquires the user's voice signal, the second microphone simultaneously captures environmental noise characteristics. The audio processing module compares the differences in characteristics between the two sound source signals to eliminate interference from environmental noise on the voice signal, thereby achieving better noise reduction in wearing scenarios and reducing the problem of unclear hearing due to noisy environments. The dual-mode communication of the Bluetooth chip enables the device to form a multi-device network to create a guided tour cluster, and also to wirelessly communicate with other Bluetooth devices. The collaborative operation of these two communication modes allows the device to operate independently or achieve group collaborative broadcasting, expanding the device's application scenarios.

[0035] The first microphone, the second microphone, the Bluetooth chip, and the audio processing module are all located on the main control circuit board. The main control circuit board is located inside the hat body on the side near the brim. Alternatively, the main control circuit board can be located on the left or right side of the hat body. The first microphone is located at the lower edge of the main control circuit board, and the second microphone is located at the upper edge of the main control circuit board, away from the first microphone.

[0036] The main control circuit board is a printed circuit board that carries core electronic components. It can house the first microphone, second microphone, Bluetooth chip, and audio processing module. (Continue to refer to...) Figure 1 The main control circuit board can be located near the right side connection between the brim and the main body of the hat. This position is horizontally aligned with the user's mouth, so that the voice acquisition direction of the first microphone is directly facing the sound source.

[0037] Optionally, the main control circuit board can be installed on either the left or right side of the cap. The first microphone is installed on the area of ​​the circuit board near the user's mouth, a position that enhances the strength of the voice signal acquisition. The second microphone is installed on the top area of ​​the circuit board away from the first microphone, which helps to expand the range of ambient sound acquisition. For example, the first microphone can serve as the main microphone, and the second microphone as the secondary microphone, with specific locations as follows... Figure 2 As shown, the main microphone and the secondary microphone can be aligned with the mouth, with a distance of 20-30mm. The secondary microphone is placed on the surface of the hat through an opening, while the opening for the main microphone can be placed at the lower edge of the hat body.

[0038] When the main control circuit board is positioned on the left or right side of the cap, its lower edge is closer to the user's mouth area, allowing the first microphone to directly receive the user's voice signal. The second microphone is positioned on the upper edge, further away from the first microphone, creating spatial separation and resulting in different sound propagation paths. The voice signal acquired by the first microphone has a higher signal-to-noise ratio due to its proximity to the sound source, while the ambient noise acquired by the second microphone retains its original characteristics due to its distance from the sound source. This spatial difference between the two signals provides the basis for subsequent noise reduction processing, enabling the audio processing module to more accurately distinguish between the target speech and environmental interference.

[0039] For example, the voice audio signal received by the first microphone is transmitted to the audio processing module, and the ambient audio signal received by the second microphone is transmitted to the audio processing module. The audio processing module performs noise reduction processing on the voice audio signal using the ambient audio signal.

[0040] Noise reduction processing can employ various noise reduction algorithms, such as adaptive filtering. Specifically, when the device is in operation, the first microphone continuously collects the user's voice signal, while the second microphone simultaneously captures ambient background noise. The audio processing module analyzes both sets of signals to eliminate interference from ambient noise. The processed, clean voice signal is then encoded by a Bluetooth chip and can be transmitted to the user's Bluetooth device via Bluetooth connection mode, or sent to surrounding devices for network sharing via Bluetooth broadcast mode.

[0041] This solution achieves physical isolation of the sound source location through a dual-microphone spatial layout design, enabling the audio processing module to accurately identify noise characteristics. While maintaining the lightweight nature of the device, it achieves noise reduction through directional acquisition and algorithm optimization.

[0042] The main control circuit board is also connected to control buttons, which control the Bluetooth chip to enable Bluetooth connection mode or Bluetooth broadcast mode; in Bluetooth connection mode, the Bluetooth chip connects to an external Bluetooth device; in Bluetooth broadcast mode, the Bluetooth chip transmits or receives broadcast audio signals.

[0043] Control buttons can be components that allow users to switch modes by physical pressing, such as mechanical microswitches or capacitive touch switches. Bluetooth connection mode refers to the working state where the Bluetooth chip establishes a point-to-point data channel with a single external device, specifically through the Bluetooth protocol stack to achieve bidirectional audio data transmission. Bluetooth broadcast mode refers to the working state where the Bluetooth chip sends data in broadcast form or scans to receive broadcast data, specifically using the Bluetooth Low Energy Broadcast protocol to achieve one-to-many network communication. The broadcast audio signal includes a voice data stream that has been noise-reduced by the audio processing module.

[0044] For example, when a user presses a control button, the main control circuit board triggers a mode switching command. This command is transmitted to the Bluetooth chip, causing the Bluetooth chip to operate in either Bluetooth connection mode or Bluetooth broadcast mode. In Bluetooth connection mode, the Bluetooth chip can respond to pairing requests from specific Bluetooth devices, establish a communication link, and receive external audio data. In Bluetooth broadcast mode, the Bluetooth chip periodically sends broadcast data packets containing device identifiers, while simultaneously scanning and receiving broadcast signals from other devices. When a matching network identifier is detected, a multipoint connection is automatically established.

[0045] This implementation solves the problem of poor scene adaptability caused by users' inability to quickly switch device working modes, enabling the guide to flexibly switch between individual use and team collaboration scenarios, ensuring both individual listening needs and group audio synchronization, and effectively improving device usage efficiency.

[0046] The voice guide in this embodiment may further include an RF amplifier chip electrically connected to the Bluetooth chip; when the Bluetooth broadcast mode is Bluetooth broadcast transmission mode, the Bluetooth chip sends pairing information and broadcast audio signals through the RF amplifier chip, and the broadcast audio signals are signals processed by the audio processing module; when the Bluetooth broadcast mode is Bluetooth broadcast reception mode, the Bluetooth chip establishes a Bluetooth broadcast network connection according to the received pairing information and plays the broadcast audio signals received from the Bluetooth broadcast network.

[0047] The radio frequency (RF) amplifier chip refers to an integrated circuit module used to enhance the strength of RF signals, such as a low-noise amplifier or power amplifier. Its function is to improve the transmission distance and anti-interference capability of Bluetooth signals. Bluetooth broadcast transmit mode refers to the working state of the Bluetooth chip transmitting broadcast data, while Bluetooth broadcast receive mode refers to the working state of the Bluetooth chip receiving external broadcast data. Pairing information refers to a data packet containing device identification, used to verify the correctness of devices during network setup. Broadcast audio signal refers to noise-reduced voice guidance content, used to synchronously transmit clear voice information to networked devices.

[0048] This solution enhances signal strength using an RF amplifier chip, which can extend the effective transmission distance of the signal and achieve stable directional communication.

[0049] The voice guide may also include a Bluetooth antenna electrically connected to the Bluetooth chip, the Bluetooth antenna being disposed at the edge of the brim away from the main control circuit board.

[0050] A Bluetooth antenna is a metallic conductor structure used to transmit and receive Bluetooth radio frequency signals. The Bluetooth antenna and Bluetooth chip are electrically connected via circuit board traces, ensuring the integrity of the radio frequency signal transmission path. The Bluetooth antenna is positioned along the edge of the hat brim and connected to an antenna mount on the main control circuit board via an antenna signal line. The antenna mount is electrically connected to the Bluetooth chip. The antenna signal line runs along the edge of the hat brim. Figure 3 As shown, the antenna mount is fixed to the main control circuit board and connects to the Bluetooth chip through the circuit path on the main control circuit board. The antenna signal line runs from the antenna mount to the antenna around the edge of the brim, and the antenna is positioned on the front side of the brim near the edge.

[0051] A solar charging panel is installed on the brim of the hat and is electrically connected to the main control circuit board to convert solar energy into electrical energy to power the Bluetooth chip. The main control circuit board is also provided with a charging port for connecting a charger to power the Bluetooth chip. The charging port is located at the edge of the hat body.

[0052] like Figure 4 As shown, a solar charging panel covers the brim of the hat, enabling energy harvesting and converting solar energy into electrical energy, reducing dependence on external power sources. Charging ports, such as USB-C or magnetic charging ports, are positioned along the edge of the hat to avoid obstructing the internal circuitry and facilitate the insertion and removal of charging cables.

[0053] In this embodiment, a solar charging panel is installed on the brim of the hat, utilizing the continuous sunlight conditions in an outdoor setting to convert energy. The generated electrical energy is transmitted to the main control circuit board via wires to power the Bluetooth chip and other modules. The charging port is located at the edge of the hat and is directly connected to the main control circuit board, allowing users to easily replenish power via a wired charger when sunlight is insufficient.

[0054] In an exemplary embodiment, the voice guide further includes a power management unit and a battery. The main control circuit board is electrically connected to the power management unit and the battery, respectively. The charging port and the solar charging panel are both electrically connected to the power management unit, and the charging circuit is switched through the power management unit.

[0055] The power management unit (PMU) is an integrated circuit module used to control the input and output of electrical energy. The battery can be two 250mAh batteries connected in parallel. It powers the voice guide when solar charging is insufficient.

[0056] The charging port and the power output terminal of the solar charging panel are respectively connected to different input channels of the power management unit. When the solar charging panel detects that the light intensity has reached a threshold, the power management unit prioritizes supplying photovoltaic power to the battery for storage. When it detects that an external power source is connected to the charging port, the power management unit automatically cuts off the solar power supply channel and activates the wired charging mode. In outdoor scenarios with unstable sunlight, the power management unit monitors the two input voltage values ​​in real time. When the solar power supply voltage is lower than the device's operating voltage, it automatically switches to the wired charging mode to avoid power interruption.

[0057] Traditional audio guides typically use a single charging method, such as only having a wired charging port, which makes the device prone to running out of power and stopping when used outdoors for extended periods. This solution, however, integrates a multi-power supply system including solar energy, batteries, and charging ports, allowing the device to autonomously select its power source based on environmental conditions, effectively overcoming the limitations of a single energy source.

[0058] For example, the voice guide may also include a voltage regulator chip for stabilizing the voltage. Within the effective range of Bluetooth, Bluetooth broadcast signals are received via the antenna, RF amplifier, filter, voltage regulator chip, and Bluetooth chip's RF input, and Bluetooth broadcast signals can also be transmitted via the antenna, RF amplifier, filter, voltage regulator chip, and Bluetooth chip.

[0059] The voice guide may also include a power amplifier and a speaker, both of which can be mounted on the main control circuit board. The main control circuit board is located at the connection point between the brim and the main body of the hat on the right side, close to the ear, so that the sound played by the speaker can be received by the ear and the listening effect can be guaranteed.

[0060] The voice guide also includes a status indicator light connected to a Bluetooth chip to indicate the usage status of the voice guide. The status indicator light has at least two different light colors. The light color can be blue, red, etc., and this embodiment is not limited to these.

[0061] The layout of the components on the main control circuit board is as follows: Figure 5 As shown, the Bluetooth chip is located in the central area of ​​the main control circuit board, and the other components are arranged around the Bluetooth chip.

[0062] Furthermore, this embodiment also provides a voice navigation system, including a Bluetooth chip, an audio processing module, and a first microphone and a second microphone. The Bluetooth chip operates in two modes: a Bluetooth connection mode and a Bluetooth broadcast mode. It receives voice audio signals through the first microphone and ambient audio signals through the second microphone. The audio processing module processes the voice audio signals and the ambient audio signals. Based on user control, the Bluetooth chip is controlled to activate either the Bluetooth connection mode or the Bluetooth broadcast mode. In the Bluetooth connection mode, the Bluetooth chip connects to an external Bluetooth device. In the Bluetooth broadcast mode, the Bluetooth chip establishes a Bluetooth broadcast network and transmits the broadcast audio signal processed by the audio processing module through the Bluetooth broadcast network.

[0063] When a user wears the device, the first microphone directionally captures the user's voice signal, while the second microphone simultaneously captures ambient background noise. The audio processing module analyzes both signals and uses an adaptive filtering algorithm to eliminate interference from ambient noise, generating noise-reduced audio for the tour guide. Users can select the Bluetooth chip's operating mode via buttons: in Bluetooth connection mode, the system establishes a point-to-point connection with the individual mobile terminal for audio transmission; in Bluetooth broadcast mode, the system transmits the processed audio signal to multiple receiving terminals via a Bluetooth broadcast network, allowing group tourists to simultaneously access the tour guide information. Both modes operate on the same hardware architecture and can be switched via software protocols to meet different user scenarios.

[0064] The specific details of each module or unit in the above-mentioned audio guide system have been described in detail in the corresponding audio guide, so they will not be repeated here.

[0065] This application also provides an electronic device, on which the above-mentioned voice navigation system can be installed to enable the voice navigation function. Figure 6 A schematic diagram of the structure of an electronic device suitable for implementing embodiments of the present disclosure is shown. Figure 6 The electronic device 600 shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments disclosed herein.

[0066] like Figure 6As shown, the electronic device 600 includes a central processing unit (CPU) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage section 608 into a random access memory (RAM) 603. The RAM 603 also stores various programs and data required for system operation. The CPU 601, ROM 602, and RAM 603 are interconnected via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0067] The following components are connected to I / O interface 605: an input section 606 including a keyboard, mouse, etc.; an output section 607 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 608 including a hard disk, etc.; and a communication section 609 including a network interface card such as a LAN card, modem, etc. The communication section 609 performs communication processing via a network such as the Internet. A drive 610 is also connected to I / O interface 605 as needed. A removable medium 611, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 610 as needed so that computer programs read from it can be installed into storage section 608 as needed.

[0068] Specifically, according to embodiments of this disclosure, the above-described voice navigation system can be implemented as a computer software program. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable storage medium, the computer program containing program code for performing software methods of the voice navigation system. In such embodiments, the computer program can be downloaded and installed from a network via communication section 609, and / or installed from removable medium 611. When the computer program is executed by central processing unit (CPU) 601, it performs the functions defined in the embodiments of this application.

[0069] It should be noted that the computer-readable medium disclosed herein may be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium may be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this disclosure, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0070] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0071] The units described in the embodiments of this disclosure can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the unit itself.

[0072] In another aspect, this application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiments; or it may exist independently and not assembled into the electronic device. The computer-readable medium carries one or more programs, which include instructions that, when executed by the electronic device, cause the electronic device to perform the methods described in the above embodiments.

[0073] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0074] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A voice navigation device, characterized in that, include: Hat body and brim; A Bluetooth chip is mounted on the cap body and is used to enable Bluetooth connection mode and Bluetooth broadcast mode for wireless communication. An audio processing module is disposed on the cap body and electrically connected to the Bluetooth chip; The first microphone is electrically connected to the audio processing module and is used to receive voice audio signals; The second microphone is electrically connected to the audio processing module and is used to receive ambient audio signals.

2. The voice guide according to claim 1, characterized in that, The first microphone, the second microphone, the Bluetooth chip, and the audio processing module are all located on the main control circuit board. The main control circuit board is located inside the hat body on one side near the brim.

3. The voice guide according to claim 2, characterized in that, The main control circuit board is located on the left or right side of the cap. The first microphone is located at the lower edge of the main control circuit board, and the second microphone is located at the upper edge of the main control circuit board away from the first microphone.

4. The voice guide according to claim 1, characterized in that, The voice audio signal received by the first microphone is transmitted to the audio processing module, and the ambient audio signal received by the second microphone is transmitted to the audio processing module. The audio processing module performs noise reduction processing on the voice audio signal using the ambient audio signal.

5. The voice guide according to claim 2, characterized in that, The main control circuit board is also connected to a control button, which controls the Bluetooth chip to enable Bluetooth connection mode or Bluetooth broadcast mode. In the Bluetooth connection mode, the Bluetooth chip connects to an external Bluetooth device; in the Bluetooth broadcast mode, the Bluetooth chip transmits or receives broadcast audio signals.

6. The voice guide according to claim 5, characterized in that, Also includes: The radio frequency amplifier chip is electrically connected to the Bluetooth chip. When the Bluetooth broadcast mode is the Bluetooth broadcast transmission mode, the Bluetooth chip sends pairing information and broadcast audio signal through the radio frequency amplifier chip, and the broadcast audio signal is a signal processed by the audio processing module; When the Bluetooth broadcast mode is the Bluetooth broadcast receiving mode, the Bluetooth chip establishes a Bluetooth broadcast network connection based on the received pairing information and plays the broadcast audio signal received from the Bluetooth broadcast network.

7. The voice guide according to claim 2, characterized in that, The voice guide also includes a Bluetooth antenna electrically connected to the Bluetooth chip, and the Bluetooth antenna is located on the edge of the cap brim away from the main control circuit board.

8. The voice navigation device according to claim 2, characterized in that, The brim of the hat is covered with a solar charging panel, which is electrically connected to the main control circuit board and is used to convert solar energy into electrical energy to power the Bluetooth chip. The main control circuit board is also provided with a charging port for connecting a charger to power the Bluetooth chip; The charging port is located at the edge of the cap.

9. The voice guide according to claim 8, characterized in that, It also includes a power management unit and a battery, and the main control circuit board is electrically connected to the power management unit and the battery, respectively. Both the charging port and the solar charging panel are electrically connected to the power management unit, which switches the charging circuit.

10. A voice-guided tour system, characterized in that, include: Bluetooth chip, audio processing module, and first and second microphones; The Bluetooth chip operates in two modes: Bluetooth connection mode and Bluetooth broadcast mode. Receive voice audio signals through the first microphone; Receive ambient audio signals through the second microphone; The audio processing module processes the speech audio signal and the environmental audio signal. The user controls the Bluetooth chip to enable Bluetooth connection mode or Bluetooth broadcast mode. In the Bluetooth connection mode, the Bluetooth chip is controlled to connect to an external Bluetooth device. In the Bluetooth broadcast mode, the Bluetooth chip is controlled to establish a Bluetooth broadcast network and transmit the broadcast audio signal processed by the audio processing module through the Bluetooth broadcast network.

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