Scenic area audio guide system and control method thereof

Abstract

The invention discloses a scenic area audio guide system and a control method thereof, and relates to the technical field of electronics. The working modes of the navigation system can be increased, and different functions are achieved. The scenic spot audio guide system comprises at least one tour guide terminal and at least one tourist terminal, wherein the tour guide terminal and the tourist terminal respectively comprise a Bluetooth chip; the tour guide end further comprises a radio frequency amplification chip, the Bluetooth chip is in communication connection with the radio frequency amplification chip, pairing information and an audio signal are generated in a Bluetooth broadcast emission mode, and the pairing information and the audio signal are sent out through the radio frequency amplification chip; in the Bluetooth broadcast receiving mode, pairing information from the tour guide terminal is received, Bluetooth broadcast networking connection is identified and established, and the tourist terminal receives and plays audio signals corresponding to the tour guide terminal; when the tour guide terminal and the tourist terminal are in the Bluetooth connection mode, the tour guide terminal and the tourist terminal can be in wireless connection with external Bluetooth equipment and receive Bluetooth signals from the external Bluetooth equipment.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a scenic spot audio guide system and a control method thereof. Background Art

[0002] When the scenic spot is not equipped with tour guide equipment, the tour guide and tourists communicate through loudspeakers, which does not meet the noise-free scenic spot standards. Some scenic spots are equipped with self-service voice guides. Tourists can get the voice explanation of the corresponding scenic spot by entering the code in the scenic spot or scanning the QR code, which greatly facilitates tourists. However, the connection between the tour guide equipment and the tourist equipment is unstable. There are multiple groups or many people connected in the scenic spot, and the signals are intertwined and chaotic, which is easy to freeze, and the sound is noisy and unclear. In addition, the tour guide equipment has a single function and cannot connect to external devices. Summary of the invention

[0003] The present application provides a scenic area audio guide system and a control method thereof, which realizes different functions in different working modes of a voice guide and can enhance the guide function.

[0004] In a first aspect, the present application provides a scenic spot audio guide system, comprising at least one tour guide terminal and at least one tourist terminal, wherein both the tour guide terminal and the tourist terminal comprise a Bluetooth chip; the tour guide terminal further comprises a radio frequency amplifier chip, wherein the Bluetooth chip and the radio frequency amplifier chip are communicatively connected, and in a Bluetooth broadcast transmission mode, pairing information and an audio signal are generated, and the pairing information and the audio signal are sent outwardly through the radio frequency amplifier chip; in a Bluetooth broadcast reception mode, pairing information from the tour guide terminal is received, a Bluetooth broadcast networking connection is identified and established, and the tourist terminal receives and plays the audio signal corresponding to the tour guide terminal; when the tour guide terminal and the tourist terminal are in a Bluetooth connection mode, both can be wirelessly connected to an external Bluetooth device and receive Bluetooth signals from the external Bluetooth device.

[0005] The pairing information includes a tour guide number. After the tourist terminal establishes a Bluetooth broadcast networking connection with the tour guide terminal, the tour guide number is played to the tourist terminal through the audio signal. When there are multiple tour guide terminals, the pairing information of each tour guide terminal includes a tour guide number corresponding to it.

[0006] Both the tourist terminal and the tour guide terminal include an audio input module and an audio output module that are communicatively connected to a Bluetooth chip. When in the Bluetooth broadcast networking mode, the audio input module of the tour guide terminal receives the audio signal of the tour guide terminal and transmits it to the tourist terminal through the Bluetooth chip and the RF amplification chip in sequence. The audio output module of the tourist terminal plays the audio signal from the tour guide terminal. When in the Bluetooth connection mode, the audio output modules of the tourist terminal and the tour guide terminal receive and play the audio signal of an external Bluetooth device, and the audio signal received by the audio input modules of the tourist terminal and the tour guide terminal is transmitted to the external Bluetooth device through the Bluetooth chip.

[0007] The audio input modules of the tour guide terminal and the tourist terminal both include a first built-in microphone and a second built-in microphone. The first built-in microphone is used to receive voice audio signals, and the second built-in microphone is used to receive ambient audio signals. The tour guide terminal and the tourist terminal also include an audio processing module that is connected to the Bluetooth chip, the audio input module, and the audio output module. The audio processing module performs noise reduction processing based on the ambient audio signal.

[0008] The tour guide terminal also includes a microphone interface that is used to mute the first built-in microphone and the second built-in microphone of the tour guide terminal when an external microphone is connected.

[0009] In the scenic area audio guide system of this embodiment, the tour guide terminal and the tourist terminal include a Bluetooth chip, and the tour guide terminal also includes an RF amplification chip. The Bluetooth chip and the RF amplification chip are communicatively connected. In the Bluetooth broadcast transmission mode, pairing information and an audio signal are generated and the pairing information and the audio signal are sent out through the RF amplification chip. In the Bluetooth broadcast reception mode, the pairing information from the tour guide terminal is received, identified, and a Bluetooth broadcast networking connection is established. The tourist terminal receives and plays the audio signal corresponding to the tour guide terminal. When the tour guide terminal and the tourist terminal are in the Bluetooth connection mode, both can be wirelessly connected to an external Bluetooth device and receive the Bluetooth signal from the external Bluetooth device. Through the Bluetooth chip, two different functions of Bluetooth broadcast and Bluetooth pairing can be realized simultaneously. In the Bluetooth broadcast mode, the tourist terminal and the tour guide terminal can use the guide function. When the user does not listen to the broadcast voice of the tour guide terminal, the voice guide can also be connected to the user's Bluetooth device, so that the Bluetooth device can be controlled through the voice guide, which can enrich the functions of the voice guide and enhance the usage scenarios.

[0010] Second aspect, this embodiment provides a control method for a scenic area audio guide system. The audio guide system includes at least one guide terminal and at least one tourist terminal. It is characterized in that both the guide terminal and the tourist terminal include Bluetooth chips, and the guide terminal further includes a radio frequency amplification chip communicatively connected to the Bluetooth chip. The method includes: the guide terminal and the tourist terminal turn on the Bluetooth connection mode and are wirelessly connected to an external Bluetooth device; the guide terminal turns on the Bluetooth broadcast transmission mode, disconnects from the external Bluetooth device, obtains pairing information and an audio signal, and sends the pairing information and the audio signal outward through the radio frequency amplification chip; the tourist terminal turns on the Bluetooth broadcast transmission mode, disconnects from the external Bluetooth device, obtains the pairing information from the guide terminal, identifies and establishes a Bluetooth broadcast networking connection, and the tourist terminal receives and plays the audio signal corresponding to the guide terminal.

[0011] The pairing information includes a guide number, and the method further includes: after the tourist terminal establishes a Bluetooth broadcast networking connection with the guide terminal, the guide number is played to the tourist terminal through the audio signal.

[0012] The pairing information includes a guide number, and there are multiple guide terminals, and each guide terminal has a corresponding guide number. The method includes: when the tourist terminal establishes a Bluetooth broadcast networking connection with the guide terminal, the tourist terminal queries the currently connected guide terminal, and the current guide number is played to the tourist terminal through the audio signal; if the currently played guide number on the tourist terminal does not match the expected guide number, the Bluetooth broadcast reception mode is restarted, and the pairing information of the guide terminal closest to the tourist terminal is obtained again. After the tourist terminal establishes a Bluetooth broadcast networking connection with the closest guide terminal, the current guide number is played to the tourist terminal through the audio signal.

[0013] Both the guide terminal and the tourist terminal include an audio input module, an audio processing module, and an audio output module. The audio input module includes a first built-in microphone and a second built-in microphone. The method specifically includes: in the Bluetooth broadcast networking mode, the guide terminal obtains the voice audio signal collected by the first built-in microphone and the ambient audio signal collected by the second built-in microphone. After the audio processing module performs noise reduction processing according to the ambient audio signal, the voice audio signal is transmitted to the tourist terminal through the Bluetooth chip; the Bluetooth chip of the tourist terminal receives the voice audio signal of the tourist terminal, obtains the ambient audio signal collected by the second built-in microphone, and after the audio processing module performs noise reduction processing according to the ambient audio signal, the voice audio signal is played through the audio output module; in the Bluetooth connection mode, the audio input modules of the guide terminal and the tourist terminal obtain audio signals and transmit them to the Bluetooth device, and the guide terminal and the tourist terminal receive the audio signals of the Bluetooth device and play them through the audio output module.

[0014] The tour guide terminal further includes a microphone interface, and the method includes: when an external microphone is connected to the microphone interface, the first built-in microphone and the second built-in microphone are muted, and the voice audio signal is collected through the external microphone.

[0015] In a third aspect, the present application provides an electronic device, which includes a memory and one or more processors. Among them, one or more computer programs are stored in the memory, and the computer programs include instructions. When the instructions are executed by the processor, the electronic device can execute the control method of the scenic area audio tour guide system as described in the second aspect.

[0016] In a fourth aspect, the present application provides a computer-readable storage medium, in which instructions are stored. When the instructions are run on an electronic device, the electronic device is caused to execute the control method of the scenic area audio tour guide system as described in the second aspect.

[0017] In a fifth aspect, the present application provides a computer program product. When the computer program product is run on an electronic device, the electronic device is caused to execute the control method of the scenic area audio tour guide system as described in the second aspect.

[0018] It can be understood that the beneficial effects that can be achieved by the control method, electronic device, computer-readable storage medium, and computer program product of the scenic area audio tour guide system provided above can refer to the beneficial effects in the first aspect, and will not be elaborated here. Description of the Drawings

[0019] Figure 1 It is a system architecture diagram of the scenic area audio tour guide system provided by an embodiment of the present application; Figure 2 It is a flowchart of the control method of the scenic area audio tour guide system provided by an embodiment of the present application; Figure 3 It is a structural diagram of the electronic device provided by an embodiment of the present application. Detailed Embodiments

[0020] In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and effects. For example, the first chip and the second chip are only used to distinguish different chips, and do not limit their sequence. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and terms such as "first" and "second" do not necessarily limit being different. It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner. In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more.

[0021] It should be noted that "when... " in the embodiments of the present application can be at the instant when a certain situation occurs, or within a period of time after a certain situation occurs. The embodiments of the present application do not make specific limitations on this.

[0022] The following will describe the implementation manners of this embodiment in detail with reference to the accompanying drawings.

[0023] As Figure 1 shown, this embodiment provides a scenic area audio guide system, including at least one guide terminal and at least one tourist terminal. Both the guide terminal and the tourist terminal include a Bluetooth chip; the guide terminal further includes a radio frequency amplification chip. The Bluetooth chip and the radio frequency amplification chip are communicatively connected. In the Bluetooth broadcast transmission mode, pairing information and audio signals are generated and sent out through the radio frequency amplification chip; in the Bluetooth broadcast reception mode, the pairing information from the guide terminal is received, the Bluetooth broadcast networking connection is identified and established, and the tourist terminal receives and plays the audio signal corresponding to the guide terminal; when the guide terminal and the tourist terminal are in the Bluetooth connection mode, both can be wirelessly connected to an external Bluetooth device and receive the Bluetooth signal from the external Bluetooth device.

[0024] After the guide terminal is started, it can enter the broadcast transmission mode, send pairing information containing the guide number, and enhance the signal coverage range through the radio frequency amplification chip. After the tourist terminal is powered on, it automatically scans the nearby signals, selects the guide terminal with the strongest signal to establish a connection, and forms a guide networking. After networking, the guide speaks through the built-in microphone, and it is broadcast to the tourist terminals within the networking by the radio frequency amplification chip. The tourist terminals play the voice in real time to realize the guide function. When the guide terminal or the tourist terminal needs to access a device such as a mobile phone to play music, it switches to the Bluetooth connection mode, pairs with the mobile phone and then transmits the audio signal.

[0025] The pairing information includes the tour guide number. After the tourist terminal and the tour guide terminal establish a Bluetooth broadcast networking connection, the tour guide number is played to the tourist terminal through the audio signal; when there are multiple tour guide terminals, the pairing information of each tour guide terminal includes the tour guide number corresponding to it one by one.

[0026] Each tour guide terminal is assigned a unique tour guide number during initialization. The tour guide terminal binds the tour guide number with the device information in the Bluetooth broadcast transmission mode to generate a pairing information data packet. When there are multiple tour guide teams in the scenic area at the same time, each broadcasts independent pairing information. For example, if there are tour guides 001, 002, 003 in the scenic area, these tour guide terminals can broadcast their own tour guide numbers at the same time.

[0027] Both the tourist terminal and the tour guide terminal include an audio input module and an audio output module that communicate with a Bluetooth chip; when in the Bluetooth broadcast networking mode, the audio input module of the tour guide terminal receives the audio signal of the tour guide terminal and transmits it to the tourist terminal through the Bluetooth chip and the RF amplification chip in sequence; the audio output module of the tourist terminal plays the audio signal from the tour guide terminal; when in the Bluetooth connection mode, the audio output modules of the tourist terminal and the tour guide terminal receive and play the audio signal of an external Bluetooth device, and the audio signal received by the audio input modules of the tourist terminal and the tour guide terminal is transmitted to the external Bluetooth device through the Bluetooth chip.

[0028] The tour guide terminal may include a dual microphone, a preamplifier, a digital-to-analog converter, a Bluetooth chip, an RF amplification chip, and an audio output module. Among them, the main microphone (the first built-in microphone) captures the tour guide's language and outputs an analog signal, and the ambient microphone (the second built-in microphone) collects background noise for local noise reduction. The digital-to-analog converter converts the collected analog signal into a digital signal, and the audio processing module performs noise reduction, echo cancellation, etc. The Bluetooth chip encapsulates the audio data into a broadcast packet or a data packet. The broadcast packet includes the tour guide number and increases the power through the RF amplification chip to expand the coverage radius to 50 meters. The Bluetooth chip of the tourist terminal scans and locks the broadcast packet of the target tour guide terminal, demodulates the signal into a digital signal, and the digital-to-analog converter of the tourist terminal converts the digital signal into an analog signal to drive the earphone or speaker. For the Bluetooth connection mode, the user can manually operate or the system automatically detects a connection request from an external device. The tour guide terminal or the tourist terminal exits the broadcast networking mode and turns off the RF amplification chip. The device responds to the connection request of an external device such as a mobile phone, and establishes a link after pairing. The voice collected by the microphone of the tour guide terminal or the tourist terminal is converted by the digital-to-analog converter and transmitted to the mobile phone through the link of the Bluetooth chip. The audio stream sent by the mobile phone, such as a song, is decoded by the Bluetooth chip and output to the speaker through the DAC.

[0029] The audio input modules of the tour guide terminal and the tourist terminal both include a first built-in microphone and a second built-in microphone. The first built-in microphone is used to receive voice audio signals, and the second built-in microphone is used to receive ambient audio signals. The tour guide terminal and the tourist terminal also include an audio processing module, which is connected to a Bluetooth chip, an audio input module, and an audio output module. The audio processing module performs noise reduction processing based on the ambient audio signal.

[0030] The first built-in microphone serves as the main microphone and can be set at a position close to the user's mouth. It adopts a directional design to preferentially capture the speech of the wearer. The second microphone can be set on the side or back of the device to collect ambient audio. The audio processing module can include a digital signal processor or other chips and is connected to the Bluetooth chip through an interface to receive the signals of the two microphones in real time. The audio processing module can use methods such as adaptive filtering, high-pass filtering, and low-pass filtering to perform noise reduction on the voice audio signal and suppress the ambient audio signal in the voice audio signal. For example, if the second microphone detects low-frequency noise below 100 Hz, the audio processing module can perform high-pass filtering on the voice audio signal to improve the signal-to-noise ratio of the voice audio signal.

[0031] The tour guide terminal further includes a microphone interface, which is used to mute the first built-in microphone and the second built-in microphone of the tour guide terminal when an external microphone is connected.

[0032] The microphone interface can adopt a 3.5mm TRS interface and supports the plug-and-play of the external microphone. The system can default the built-in microphone as the input source. When it detects that an external microphone is connected, it switches the input source to the external microphone and mutes the built-in microphone.

[0033] Furthermore, this embodiment also provides a control method for a scenic area audio guide system. The audio guide system includes at least one tour guide terminal and at least one tourist terminal. Both the tour guide terminal and the tourist terminal include a Bluetooth chip. The tour guide terminal further includes a radio frequency amplification chip communicatively connected to the Bluetooth chip. Based on this, as Figure 2 shown, the method specifically includes the following steps: Step 10: The tour guide terminal and the tourist terminal turn on the Bluetooth connection mode and are both wirelessly connected to an external Bluetooth device.

[0034] Step 20: The tour guide terminal turns on the Bluetooth broadcast transmission mode, disconnects from the external Bluetooth device, obtains pairing information and audio signals, and sends the pairing information and audio signals outward through the radio frequency amplification chip.

[0035] Step 30: The tourist terminal turns on the Bluetooth broadcast transmission mode, disconnects from the external Bluetooth device, obtains the pairing information from the tour guide terminal, identifies and establishes a Bluetooth broadcast networking connection, and the tourist terminal receives and plays the audio signal corresponding to the tour guide terminal.

[0036] The pairing information includes the tour guide number. There are multiple tour guide terminals, and each tour guide terminal has a tour guide number corresponding to it one by one. The method further includes: after the tourist terminal establishes a Bluetooth broadcast networking connection with the tour guide terminal, the tour guide number is played to the tourist terminal through the audio signal.

[0037] When the Bluetooth connection mode is turned on, the tour guide terminal and the tourist terminal can establish a connection with the external Bluetooth device. When the tour guide starts the tour guide, it switches to the Bluetooth broadcast transmission mode, releases the resources of the connected mobile phone or headset, and turns off the Bluetooth connection. Then the tour guide terminal encapsulates data such as the tour guide number, device ID, and broadcast channel to obtain a broadcast packet, improves the transmission power through a radio frequency amplification chip, expands the signal coverage range, binds the voice signal collected by the tour guide terminal with the pairing information, and continuously sends it in the form of BLE broadcast to establish a networking connection with the tourist terminal. After the tourist terminal detects the broadcast of the tour guide terminal, it switches to the Bluetooth broadcast reception mode, filters the broadcast packet based on the received tour guide number, and establishes a one-to-many connection with the tour guide terminal through the BLE broadcast channel. The tourist terminal decodes the audio stream of the tour guide terminal and outputs it to the speaker after noise reduction processing.

[0038] In this embodiment, the effective coverage range of the signal is increased through radio frequency amplification, which can be applied to various scenarios; and tourists can switch to the Bluetooth connection mode during the tour guide to listen to music or make and receive calls; the Bluetooth chip architecture is used to simultaneously implement the tour guide and Bluetooth connection functions, without the need to deploy additional WiFi or RFID base stations, which can enhance the functions of the tour guide system.

[0039] Under the condition that the tourist terminal establishes a Bluetooth broadcast networking connection with the tour guide terminal, the tourist terminal queries the currently connected tour guide terminal, and the current tour guide number is played to the tourist terminal through the audio signal; if the currently played tour guide number on the tourist terminal does not match the expected tour guide number, restart the Bluetooth broadcast reception mode, re-obtain the pairing information of the tour guide terminal closest to the tourist terminal, and after the tourist terminal establishes a Bluetooth broadcast networking connection with the closest tour guide terminal, the current tour guide number is played to the tourist terminal through the audio signal.

[0040] If the tour guide number received by the tourist terminal does not match the expected tour guide number, the tourist terminal can restart the Bluetooth broadcast reception mode, change its position, and re-obtain the pairing information of the closest tour guide terminal until the expected tour guide number is received.

[0041] Both the tour guide terminal and the tourist terminal include an audio input module, an audio processing module, and an audio output module. The audio input module includes a first built-in microphone and a second built-in microphone. This embodiment specifically includes: In the Bluetooth broadcast networking mode, the tour guide terminal acquires the voice audio signal collected by the first built-in microphone and the ambient audio signal collected by the second built-in microphone. After the audio processing module performs noise reduction processing on the ambient audio signal, the voice audio signal is transmitted to the tourist terminal through the Bluetooth chip; the Bluetooth chip of the tourist terminal receives the voice audio signal of the tourist terminal, acquires the ambient audio signal collected by the second built-in microphone, and after the audio processing module performs noise reduction processing on the ambient audio signal, the voice audio signal is played through the audio output module; in the Bluetooth connection mode, the audio input modules of the tour guide terminal and the tourist terminal acquire audio signals and transmit them to the Bluetooth device, and the tour guide terminal and the tourist terminal receive the audio signals of the Bluetooth device and play them through the audio output module.

[0042] The tour guide terminal further includes a microphone interface. This embodiment further includes: When an external microphone is connected to the microphone interface, the first built-in microphone and the second built-in microphone are muted, and the voice audio signal is collected through the external microphone.

[0043] The scenic area audio guide system in this embodiment is applicable to a language guide, and this voice guide can be used as the tour guide terminal or the tourist terminal. Specifically, when used as the tourist terminal, this voice guide includes: a main control circuit board and a Bluetooth chip, which are arranged on the main control circuit board; a control unit is arranged on the main control circuit board, and the control unit is electrically connected to the Bluetooth chip for controlling the Bluetooth chip to turn on the Bluetooth connection mode and the Bluetooth broadcast networking mode; a battery, which is arranged on the main control circuit board and is electrically connected thereto; a charging interface, which is electrically connected to the main control circuit board, and a solar charging panel, which is electrically connected to the main control circuit board for converting solar energy into electrical energy; wherein, a power management unit is further included, the power management unit is arranged on the main control circuit board, the charging interface and the solar charging panel are both electrically connected to the power management unit, and the power management unit is electrically connected to the battery and the Bluetooth chip.

[0044] Among them, the battery can include a plurality of batteries connected in parallel. For example, the battery can be two 250 mA batteries connected in parallel. It supplies power to the voice guide when the solar charging is insufficient.

[0045] The power management unit includes a first charging circuit, a second charging circuit, a discharging circuit, a first power supply circuit, and a second power supply circuit. The charging interface is connected to the battery via the first charging circuit and to the Bluetooth chip via the discharging circuit. The solar charging panel is connected to the battery via the second charging circuit and to the Bluetooth chip via the discharging circuit. The charging interface is connected to the Bluetooth chip via the first power supply circuit, and the solar charging panel is connected to the Bluetooth chip via the second power supply circuit.

[0046] The charging interface includes a charging control terminal, which is connected to the power management unit. When the charging control terminal receives a control signal, the power management unit controls the second charging circuit to turn off according to the control signal.

[0047] The voice guide includes a power input terminal 1 and a power input terminal 2. The solar charging panel inputs electric energy into the voice guide through the power input terminal 2, charges the battery charging terminal through the second charging circuit, and supplies power to the Bluetooth chip through the second power supply circuit. The charging interface inputs electric energy into the voice guide through the power input terminal 1, charges the battery through the first charging circuit, and supplies power to the Bluetooth chip through the first power supply circuit. When charging through the charging interface or the solar charging panel is high-power charging, it can supply power to the Bluetooth chip while charging the battery, with priority in power supply. In addition, the battery can also supply power to the Bluetooth chip through the discharging circuit. In this embodiment, the voice guide includes charging paths for two charging modes, namely the charging interface and the solar charging panel, which can increase the battery life.

[0048] The main control circuit board further includes an output control terminal. When the output control terminal receives a first control signal, the control unit controls the Bluetooth chip to turn on the Bluetooth connection mode according to the first control signal and wirelessly communicate with an external Bluetooth device, so that the Bluetooth chip and the external Bluetooth device perform audio signal interaction; when the output control terminal receives a second control signal, the control unit controls the Bluetooth chip to turn on the Bluetooth networking mode according to the second control signal, so that the tour guide terminal sends audio signals outward through the Bluetooth chip, and the tourist terminal receives audio signals through the Bluetooth chip.

[0049] The output control terminal includes a networking key, a power key, a volume up key, and a volume down key. The power key corresponds to triggering the first control signal, and the networking key corresponds to triggering the second control signal. The audio output unit includes a first speaker and a second speaker. The voice guide includes a hat body and a brim. The main control circuit board, the charging interface, the microphone interface, the networking key, the power key, the volume up key, the volume down key, the first built-in microphone, the second built-in microphone, the first speaker, and the second speaker are all arranged on the hat body, and the solar charging panel is arranged on the brim.

[0050] The voice guide further includes an antenna base, a signal line, and an external antenna. The antenna base is disposed on the main control circuit board and electrically connected to the Bluetooth chip. The external antenna is disposed at the distal end of the brim. One end of the signal line is electrically connected to the antenna base, and the other end extends along the brim to the distal end and is electrically connected to the antenna.

[0051] The voice guide further includes an audio input unit, an audio processing unit, and an audio output unit. The audio input unit includes a first built-in microphone and a second built-in microphone. The first built-in microphone is disposed on the main control circuit board and is used to receive voice audio signals. The second built-in microphone is disposed on the main control circuit board and is used to receive ambient audio signals. The audio processing unit is connected to the Bluetooth chip, the audio input unit, and the audio output unit. The audio processing unit performs noise reduction processing based on the ambient audio signal. The audio output unit of the guide end plays the audio signal connected to the external Bluetooth device, and the audio output unit of the tourist end plays the audio signal connected to the external Bluetooth device or the audio signal from the guide end.

[0052] The audio processing unit includes a first audio input circuit, a second audio input circuit, an audio processor, an audio input / output circuit, and an audio output circuit. The first built-in microphone is connected to the audio processor via the first audio input circuit and is connected to the Bluetooth chip via the audio input / output circuit. The second built-in microphone is connected to the audio processor via the second audio input circuit. The Bluetooth chip is connected to the audio processor via the audio input / output circuit and is connected to the audio output unit via the audio output circuit.

[0053] The structure of the voice guide of the guide end is similar to that of the tourist end. When serving as the guide end, the voice guide further includes a microphone interface. The audio processing unit further includes a third audio input circuit. The microphone interface includes an audio input control terminal. The audio input control terminal is connected to the audio processing unit. When the audio input control terminal receives a control signal, the audio processing unit controls the first audio input circuit and the second audio input circuit to be turned off according to the control signal, and an external microphone connected to the microphone interface is connected to the audio processor via the third audio input circuit and is connected to the Bluetooth chip via the audio input / output circuit.

[0054] When serving as the guide end, the voice guide further includes a radio frequency amplifier and a voltage regulator chip. The radio frequency amplifier is electrically connected to the Bluetooth chip and the voltage regulator chip.

[0055] Exemplarily, the structures of the tourist end and the guide end may also be the same. For example, the tourist end may also include a radio frequency amplifier, a microphone interface, etc. This embodiment does not make special limitations on this.

[0056] This embodiment also includes a control method for the voice guide device. At the tour guide end, the method may specifically include the following steps: Step 101: When receiving a control operation from the user, control the voice guide device to turn on according to the control operation.

[0057] The user's control operation may include the user's touch operation, button operation, input operation, etc. on the voice guide device. Exemplarily, the control operation may be the operation of the user clicking the power key. When receiving the operation of the user clicking the power key, the voice guide device can be controlled to turn on, so that the Bluetooth chip is powered on and the Bluetooth function is enabled. When the voice guide device is turned on by different control operations, the Bluetooth function may be in different working modes.

[0058] Step 102: When the working mode of the voice guide device is the Bluetooth connection mode, receive a Bluetooth connection request from a Bluetooth device, connect to the Bluetooth device, and perform audio transmission.

[0059] The Bluetooth device refers to a device with Bluetooth function. In the Bluetooth connection mode, the Bluetooth device can be paired with the voice guide device and connected. After establishing the connection, data transmission can be performed between the devices, such as audio. When the voice guide device receives the audio on the Bluetooth device, it can play the audio.

[0060] Step 103: When the working mode of the voice guide device is the Bluetooth broadcast mode, send a Bluetooth broadcast corresponding to the voice guide information for the user to listen to.

[0061] The Bluetooth broadcast is a process in which the voice guide device sends out data packets, which can be discovered and connected by other devices. The broadcast data packet may include voice guide information, or may also include other information, such as device name, type, etc. In this embodiment, the Bluetooth broadcast mode of the voice guide device at the tour guide end may specifically be the Bluetooth broadcast transmission mode, and the Bluetooth broadcast can be sent through a fixed frequency band, while other voice guide devices can be adjusted to this fixed frequency band to listen to the Bluetooth broadcast.

[0062] Specifically, the voice guide device includes a power key, a networking key, a volume up key, and a volume down key. The method further includes: when receiving a long press operation on the power key, controlling the Bluetooth chip to turn on the Bluetooth connection mode; when receiving a long press operation on the networking key, controlling the Bluetooth chip to turn on the Bluetooth broadcast mode; when receiving a short press operation on the volume up key, increasing the volume of the voice guide device; when receiving a short press operation on the volume down key, decreasing the volume of the voice guide device.

[0063] The voice guide includes multiple function buttons such as a power key, a networking key, a volume up key, and a volume down key. Users can control the voice guide by pressing these function buttons. A long press operation refers to pressing a function button for a certain period of time, and the duration can be set according to actual needs, such as 2 seconds, 3 seconds, 5 seconds, etc.

[0064] Specifically, when performing a long press operation on the power key, the Bluetooth connection mode is controlled to be turned on. When performing a long press operation on the networking key, the Bluetooth broadcast mode is controlled to be turned on. When it is necessary to increase or decrease the volume, the volume up key or the volume down key can be short-pressed. In addition, in the state where the Bluetooth connection mode has been turned on, the Bluetooth connection mode can also be turned off by performing a long press operation on the power key. In the state where the Bluetooth broadcast mode has been turned on, the Bluetooth broadcast mode is controlled to be turned off by performing a long press operation on the networking key.

[0065] After the voice guide is in the Bluetooth connection mode, this embodiment further includes: if the Bluetooth chip does not perform pairing within a preset duration, controlling the Bluetooth chip to exit the Bluetooth connection mode and turn on the Bluetooth broadcast mode. If the user still needs to perform Bluetooth pairing, the Bluetooth chip can be made to turn on the Bluetooth connection mode again by performing a long press operation on the power key.

[0066] In this embodiment, after the voice guide establishes a connection with a Bluetooth device, the Bluetooth device can be controlled through the voice guide. Specifically, after establishing the connection, when a short press operation on the power key is received, the playlist of the Bluetooth device is obtained and the current music in the playlist is played; during the process of playing music, if a short press operation on the power key is received, the playback is paused.

[0067] The function buttons on the voice guide can control the user's own Bluetooth device, so as to realize the function of playing music on the voice guide and increase the usage scenarios of the voice guide.

[0068] After establishing a connection with the Bluetooth device, when the Bluetooth device receives a voice call, if a short press operation on the power key is received, the call is answered, and if a long press operation on the power key is received, the call is hung up; during the call, if a short press operation on the power key is received, the call ends.

[0069] If a voice call is received on the Bluetooth device, through the control of the power key on the voice guide, the voice guide can answer the call, hang up the call, and end the call, realizing the function of making a voice call on the voice guide and further increasing the functions of the voice guide.

[0070] In this embodiment, when the voice guide is in the shutdown state, if a long press operation on the power button for a preset duration is received, the Bluetooth pairing records are cleared. Since the voice guide can automatically connect to Bluetooth devices using the Bluetooth pairing records, the Bluetooth pairing records can be cleared to avoid occupying storage space with redundant information.

[0071] When in the Bluetooth broadcast mode, the voice guide can send out Bluetooth broadcasts, thereby establishing a connection with other voice guides for data transmission. If a short press operation on the networking button is received while in the Bluetooth broadcast mode, the microphone and speaker of the voice guide are turned off, putting the voice guide in the mute state. In this case, the voice of the tour guide using the voice guide stops being transmitted via Bluetooth broadcast, achieving the mute effect and meeting various usage requirements of users.

[0072] On the tourist side, the method includes: Step 201: When a control operation of the user is received, control the voice guide to turn on according to the control operation.

[0073] Step 202: When the working mode of the voice guide is the Bluetooth connection mode, receive a Bluetooth connection request from a Bluetooth device, connect to the Bluetooth device, and perform audio transmission.

[0074] Step 203: When the working mode of the voice guide is the Bluetooth broadcast mode, the Bluetooth broadcast mode on the tourist side can specifically be the Bluetooth broadcast reception mode to receive the Bluetooth broadcast for the user to listen to.

[0075] The voice guide on the tourist side can receive the Bluetooth broadcast of a fixed frequency band through the antenna and the RF of the Bluetooth chip, and can listen to the voice guide information of the tour guide side after successful reception.

[0076] This embodiment also includes: obtaining the broadcast information of the Bluetooth broadcast and broadcasting the broadcast information, where the broadcast information is used to indicate the tour guide side number of the voice guide that sends the Bluetooth broadcast; during the process of receiving the Bluetooth broadcast, if a short press operation on the networking button of the voice guide is received, the broadcast information is broadcast again.

[0077] When the tourist terminal successfully receives the Bluetooth broadcast on the fixed frequency band, the Bluetooth broadcast includes the broadcast information of the tour guide terminal, and the broadcast information can be audio, such as the audio corresponding to the tour guide terminal number. When the tourist hears the audio, the corresponding tour guide terminal number can be compared with the tour guide terminal number of the scenic spot location required by himself / herself. If they are the same, the voice navigation information is the explanation of this scenic spot location. If they are different, the broadcast networking can be re-performed. During the process of listening to the Bluetooth broadcast, the broadcast information can also be listened to again by short-pressing the networking button. The process of re-performing the networking is as follows: turn off the Bluetooth broadcast mode, then re-enter the broadcast networking, and when within a certain distance range from the tour guide terminal, turn on the Bluetooth broadcast mode to receive the Bluetooth broadcast signal.

[0078] An embodiment of the present application also provides an electronic device. Figure 3 The structural schematic diagram of the electronic device suitable for implementing the embodiments of the present disclosure is shown. Figure 3 The illustrated electronic device 600 is only an example and should not bring any limitation to the functions and usage scope of the embodiments of the present disclosure.

[0079] As Figure 3 shown, the electronic device 600 includes a central processing unit (CPU) 601, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 602 or the program loaded from the storage section 608 into the random access memory (RAM) 603. In the RAM 603, various programs and data required for system operation are also stored. The CPU 601, the ROM 602, and the RAM 603 are connected to each other through a bus 604. The input / output (I / O) interface 605 is also connected to the bus 604.

[0080] The following components are connected to the I / O interface 605: an input section 606 including a keyboard, a mouse, etc.; an output section 607 including such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, 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, a modem, etc. The communication section 609 performs communication processing via a network such as the Internet. The drive 610 is also connected to the I / O interface 605 as needed. A removable medium 611, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 610 as needed so that the computer program read from it can be installed into the storage section 608 as needed.

[0081] In particular, according to embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product that includes a computer program carried on a computer-readable storage medium, and the computer program contains program codes for executing the methods shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 609, and / or installed from the removable medium 611. When the computer program is executed by the central processing unit (CPU) 601, the above-described functions defined in the embodiments of the present application are executed.

[0082] For example, when the computer program is executed by the central processing unit (CPU) 601, it can execute steps as Figure 2 shown.

[0083] It should be noted that the computer-readable medium shown in the present disclosure can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium can include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, the computer-readable storage medium can be any tangible medium that contains or stores a program, and the program can be used by or in combination with an instruction execution system, apparatus, or device. In the present disclosure, the computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries the computer-readable program code. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, and the computer-readable medium can send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted by any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0084] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a part of code that contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram or flowchart, as well as combinations of blocks in the block diagram or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0085] The units involved in the embodiments described in the present disclosure can be implemented in software or in hardware, and the described units can also be provided in a processor. Among them, the names of these units do not, in some cases, constitute a limitation on the unit itself.

[0086] As another aspect, the present application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and the one or more programs include instructions that, when executed by the electronic device, cause the electronic device to implement the methods described in the above embodiments.

[0087] It should be noted that although several modules or units of devices for action execution are mentioned in the above detailed description, such a division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more of the above-mentioned modules or units 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.

[0088] The above content is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A scenic area audio guide system, characterized in that: It includes at least one tour guide terminal and at least one tourist terminal, and both the tour guide terminal and the tourist terminal include a Bluetooth chip; The tour guide terminal also includes a radio frequency amplifier chip, the Bluetooth chip is in communication connection with the radio frequency amplifier chip, generates pairing information and an audio signal in a Bluetooth broadcast transmission mode, and sends the pairing information and the audio signal outwardly through the radio frequency amplifier chip; In the Bluetooth broadcast receiving mode, the pairing information from the tour guide terminal is received, the Bluetooth broadcast networking connection is identified and established, and the tourist terminal receives and plays the audio signal corresponding to the tour guide terminal; When the tour guide end and the tourist end are in the Bluetooth connection mode, both can be wirelessly connected to the external Bluetooth device and receive the Bluetooth signal from the external Bluetooth device.

2. The scenic area audio guide system according to claim 1, characterized in that: The pairing information includes a tour guide number. After the tourist terminal and the tour guide terminal establish a Bluetooth broadcast networking connection, the tour guide number is played to the tourist terminal through the audio signal. When there are multiple tour guide terminals, the pairing information of each tour guide terminal includes a tour guide number corresponding thereto.

3. The scenic area audio guide system according to claim 1 or 2, characterized in that: The tourist terminal and the tour guide terminal both include an audio input module and an audio output module that are communicatively connected to the Bluetooth chip; When in the Bluetooth broadcast networking mode, the audio input module of the tour guide receives the audio signal of the tour guide and transmits it to the tourist end through the Bluetooth chip and the radio frequency amplifier chip in sequence; The audio output module of the tourist terminal plays the audio signal from the tour guide terminal; When in Bluetooth connection mode, the audio output modules of the tourist end and the tour guide end receive and play the audio signals of the external Bluetooth device, and the audio input modules of the tourist end and the tour guide end receive the audio signals and transmit them to the external Bluetooth device through the Bluetooth chip.

4. The scenic area audio guide system according to claim 3, characterized in that: The audio input modules of the tour guide end and the tourist end each include a first built-in microphone and a second built-in microphone, wherein the first built-in microphone is used to receive voice audio signals, and the second built-in microphone is used to receive ambient audio signals. The tour guide end and the tourist end also include an audio processing module, which is connected to the Bluetooth chip, the audio input module and the audio output module, and performs noise reduction processing according to the ambient audio signal.

5. The scenic area audio guide system according to claim 4, characterized in that: The tour guide end also includes a microphone interface, and the microphone interface is used to mute the first built-in microphone and the second built-in microphone of the tour guide end when an external microphone is connected.

6. A control method for a scenic area audio guide system, the audio guide system comprising at least one tour guide terminal and at least one tourist terminal, characterized in that: The tour guide end and the tourist end both include a Bluetooth chip, and the tour guide end also includes a radio frequency amplification chip that is communicatively connected to the Bluetooth chip. The method includes: The tour guide terminal and the tourist terminal are in Bluetooth connection mode, and both are wirelessly connected to the external Bluetooth device; The tour guide terminal turns on the Bluetooth broadcast transmission mode, disconnects from the external Bluetooth device, obtains pairing information and audio signals, and sends the pairing information and audio signals to the outside through the radio frequency amplification chip; The tourist terminal turns on the Bluetooth broadcast transmission mode, disconnects from the external Bluetooth device, obtains the pairing information from the tour guide terminal, identifies and establishes the Bluetooth broadcast networking connection, and the tourist terminal receives and plays the audio signal corresponding to the tour guide terminal.

7. The control method of the scenic area audio guide system according to claim 6, characterized in that: The pairing information includes a tour guide number, and the method further includes: After the tourist terminal and the tour guide terminal establish a Bluetooth broadcast networking connection, the tour guide number is played to the tourist terminal through the audio signal.

8. The control method of the scenic area audio guide system according to claim 6, characterized in that: The pairing information includes a tour guide number, the tour guide terminal has a plurality of tour guide terminals, and each tour guide terminal has a tour guide number corresponding thereto. The method includes: When the tourist terminal and the tour guide terminal establish a Bluetooth broadcast networking connection, the tourist terminal queries the currently connected tour guide terminal, and the current tour guide number is played to the tourist terminal via an audio signal; If the current tour guide number played by the tourist terminal does not match the expected tour guide number, the Bluetooth broadcast receiving mode is restarted to re-acquire the pairing information of the tour guide terminal closest to the tourist terminal. After the tourist terminal establishes a Bluetooth broadcast networking connection with the nearest tour guide terminal, the current tour guide number is played to the tourist terminal through the audio signal.

9. The control method of the scenic area audio guide system according to any one of claims 6 to 8, characterized in that: The tour guide end and the tourist end both include an audio input module, an audio processing module, and an audio output module. The audio input module includes a first built-in microphone and a second built-in microphone. The method specifically includes: In the Bluetooth broadcast networking mode, the tour guide obtains the voice audio signal collected by the first built-in microphone and the ambient audio signal collected by the second built-in microphone. After the audio processing module performs noise reduction processing on the ambient audio signal, the voice audio signal is transmitted to the tourist terminal through the Bluetooth chip. The Bluetooth chip on the tourist side receives the voice audio signal from the tourist side, obtains the ambient audio signal collected by the second built-in microphone, and the audio processing module performs noise reduction processing on the ambient audio signal, and then the voice audio signal is played through the audio output module; In the Bluetooth connection mode, the audio input modules of the tour guide and the tourist end obtain the audio signal and transmit it to the Bluetooth device, and the tour guide and the tourist end receive the audio signal of the Bluetooth device and play it through the audio output module.

10. The control method of the scenic area audio guide system according to claim 9, characterized in that: The tour guide terminal also includes a microphone interface, and the method includes: When the microphone interface is connected to an external microphone, the first built-in microphone and the second built-in microphone are muted, and voice audio signals are collected through the external microphone.

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