Portable sound box with help seeking and positioning functions

Abstract

The embodiment of the utility model discloses a portable sound box with help seeking and positioning functions. The portable sound box comprises a calling unit, a main control unit and a positioning unit, the calling unit is used for inputting a one-key calling signal; the positioning unit is used for acquiring positioning information of the sound box and transmitting the positioning information to the main control unit; and the main control unit is used for receiving the one-key calling signal and the positioning information and outputting the corresponding signal and the positioning information to a set terminal. By implementing the sound box provided by the embodiment of the utility model, the functions of help seeking and positioning communication can be realized, so that a user can quickly seek help in an emergency, and the requirements of different scenes can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of sound boxes, in particular to a portable sound box with rescue and positioning functions. Background Art

[0002] As a common device for home entertainment, speakers are gaining more and more attention from consumers. Bluetooth speakers refer to audio equipment with built-in Bluetooth chips that use Bluetooth connections instead of traditional wire connections. They are connected to Bluetooth playback devices such as mobile phones, tablets, and laptops to achieve convenience and speed. Bluetooth speakers are mainly portable speakers, and their appearance is generally small and portable. Bluetooth speaker technology is also gradually valued and accepted by consumers due to its convenience. Most common Bluetooth speakers on the market are mono speakers, but some multi-channel speakers with excellent sound quality have also emerged.

[0003] However, traditional Bluetooth speakers usually only have basic functions such as Bluetooth connection and music playback, and cannot meet the needs of users in various scenarios such as calling for help, positioning, and communication.

[0004] Therefore, it is necessary to design a new speaker with the functions of distress and positioning communication so that users can quickly call for help in emergency situations and meet the needs of different scenarios. Utility Model Content

[0005] The utility model aims to overcome the defects of the prior art and provide a portable speaker with rescue and positioning functions.

[0006] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: to provide a portable speaker with rescue and positioning functions, including: a call unit, a main control unit and a positioning unit; the call unit is used to input a one-key call signal; the positioning unit is used to obtain the positioning information of the speaker and transmit it to the main control unit; the main control unit is used to receive the one-key call signal and positioning information, and output the corresponding signal and positioning information to the set terminal.

[0007] Its further technical solution is: it also includes a family number unit, which is connected to the main control unit; the family number unit is used to obtain the family number call signal and transmit it to the main control unit, so that the main control unit calls the corresponding family number.

[0008] Its further technical solution is: it also includes a Bluetooth communication module and a wireless communication module; the Bluetooth communication module and the wireless communication module are respectively connected to the main control unit.

[0009] Its further technical solution is: it also includes a mode selection unit and a voice input and output switching unit, the mode selection unit and the voice input and output switching unit are respectively connected to the main control unit; the mode selection unit is used to input the working mode of the speaker to the main control unit; the voice input and output switching unit is used to receive the output command of the main control unit, switch the voice input mode and output mode, so as to switch to the Bluetooth communication module or the wireless communication module to work, and receive the corresponding audio. Its further technical solution is: it also includes a Bluetooth communication module and a wireless communication module; the Bluetooth communication module and the wireless communication module are respectively connected to the main control unit.

[0010] Its further technical solution is: it also includes a voice amplifier unit, which is connected to the main control unit and the voice input and output switching unit respectively, and the voice amplifier unit is used to receive and amplify the audio from the voice input and output switching unit under the drive of the main control unit.

[0011] Its further technical solution is: it also includes a mode response unit, which is connected to the Bluetooth communication module and the wireless communication module respectively; the mode response unit is used to realize independent key multiplexing when the Bluetooth communication module plays voice and the wireless communication module plays voice.

[0012] A further technical solution is: the calling unit includes a button.

[0013] Its further technical solution is: the positioning unit includes an antenna operational amplifier gain amplifier circuit, a first radio frequency matching circuit, a second radio frequency matching circuit and a GPS positioning circuit; the antenna operational amplifier gain amplifier circuit is connected to the GPS positioning circuit; the first radio frequency matching circuit is connected to the antenna operational amplifier gain amplifier circuit; the second radio frequency matching circuit is connected between the antenna operational amplifier gain amplifier circuit and the GPS positioning circuit; the GPS positioning circuit is connected to the wireless communication module.

[0014] A further technical solution is: the family number unit includes a dialing button, and the dialing button is connected to the main control unit.

[0015] A further technical solution is: the mode selection unit includes a switch button, and the switch button is connected to the main control unit.

[0016] Compared with the prior art, the utility model has the following beneficial effects: by setting a call unit, a main control unit and a positioning unit, the call unit can realize a one-key call function, and the positioning unit can accurately locate the position of the speaker to meet the need for rescue positioning. In addition to realizing the basic speaker function, it also realizes rescue and positioning communication functions, so that users can quickly call for help in emergency situations, meeting the needs of different scenarios.

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic block diagram of a portable speaker with rescue and positioning functions provided by an embodiment of the utility model;

[0020] Figure 2 A specific circuit schematic diagram of a positioning unit provided in an embodiment of the utility model;

[0021] Figure 3 A specific circuit schematic diagram of a family number unit provided by an embodiment of the utility model;

[0022] Figure 4 A specific circuit schematic diagram of a voice input and output switching unit provided in an embodiment of the utility model;

[0023] Figure 5 A specific circuit schematic diagram of a voice power amplifier unit provided in an embodiment of the utility model;

[0024] Figure 6 A specific circuit schematic diagram of the Bluetooth communication module provided by the embodiment of the utility model;

[0025] Figure 7 A specific circuit schematic diagram of a wireless communication module provided by an embodiment of the utility model;

[0026] Figure 8 A specific circuit schematic diagram of a mode response unit provided in an embodiment of the utility model;

[0027] Description of the symbols in the figure:

[0028] 10. Call unit; 20. Main control unit; 30. Positioning unit; 40. Family number unit; 50. Voice input and output switching unit; 60. Voice amplifier unit; 70. Bluetooth communication module; 80. Wireless communication module; 90. Mode response unit; 100. Mode selection unit. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0031] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0032] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0033] See also Figure 1 , Figure 1 A schematic block diagram of a portable speaker with a rescue and positioning function provided in an embodiment of the utility model can be used in various scenarios such as outdoors and indoors, and can provide not only the function of a speaker, but also the rescue and positioning communication functions, so that users can quickly seek help in an emergency, meeting the needs of different scenarios.

[0034] See also Figure 1The above-mentioned portable speaker with rescue and positioning functions includes: a call unit 10, a main control unit 20 and a positioning unit 30; the call unit 10 is used to input a one-key call signal; the positioning unit 30 is used to obtain the positioning information of the speaker and transmit it to the main control unit 20; the main control unit 20 is used to receive the one-key call signal and positioning information, and output the corresponding signal and positioning information to the set terminal.

[0035] In this embodiment, the calling unit 10: When the user presses the one-touch calling button, the calling unit 10 receives the distress signal and processes it. The positioning unit 30: The positioning unit 30 is used to obtain the location information of the speaker, and can obtain accurate location information through positioning technologies such as GPS, and transmit this information to the main control unit 20. The main control unit 20: After receiving the one-touch calling signal and positioning information, the main control unit 20 will output the corresponding signal and positioning information according to the set terminal, so as to perform the distress and positioning operations.

[0036] Benefits of this portable speaker include:

[0037] SOS function: When users encounter an emergency, they can send a distress signal through the one-click call function to get help in time.

[0038] Positioning function: The position information obtained by the positioning unit 30 can accurately determine the user's position, which is helpful for timely rescue.

[0039] Easy to carry: Due to its portable design, users can carry it with them and ensure safety no matter where and when.

[0040] In general, this portable speaker with distress and positioning functions can help users get timely help in emergency situations, provide accurate positioning information, and increase users' sense of security.

[0041] In one embodiment, see Figure 1 The above-mentioned portable speaker with rescue and positioning functions also includes a family number unit 40, which is connected to the main control unit 20; the family number unit 40 is used to obtain the family number call signal and transmit it to the main control unit 20, so that the main control unit 20 calls the corresponding family number.

[0042] Specifically, the family number unit 40: the user can set some family numbers in advance, and in an emergency, these specific numbers can be called through the family number unit 40. This unit will receive the call signal of the family number and transmit the signal to the main control unit 20.

[0043] After receiving the calling signal of the family number, the main control unit 20 will call the corresponding family number according to the set information so as to get in touch with the family or emergency contact.

[0044] The benefits of this design include:

[0045] Quickly contact relatives: In an emergency, users can quickly contact pre-set relatives or emergency contacts through the one-click call to family numbers function, increasing their sense of security and emergency response capabilities.

[0046] Increase humane care: By setting a family number, users can keep in touch with their family or friends more conveniently, so that they can get timely help and support when they encounter difficulties.

[0047] Improved ease of use: The setting of the family number unit 40 allows users to contact people who care about them more quickly and directly in an emergency, thereby improving the practicality and user experience of the portable speaker.

[0048] In general, portable speakers with the addition of a family number function can more effectively contact relatives or emergency contacts in an emergency, providing users with more comprehensive safety protection.

[0049] In one embodiment, see Figure 1 The portable speaker with the functions of calling for help and positioning further comprises a mode selection unit 100 and a voice input / output switching unit 50, wherein the mode selection unit 100 and the voice input / output switching unit 50 are respectively connected to the main control unit 20; the mode selection unit 100 is used to input the working mode of the speaker to the main control unit 20; the voice input / output switching unit 50 is used to receive the output command of the main control unit 20, switch the voice input mode and output mode, so as to switch to the Bluetooth communication module 70 or the wireless communication module 80 to work, and receive the corresponding audio.

[0050] In one embodiment, see Figure 1 The portable speaker with the functions of calling for help and positioning further comprises a voice amplifier unit 60, which is connected to the main control unit 20 and the voice input and output switching unit 50 respectively.

[0051] Specifically, the mode selection unit 100 receives the user's voice input mode and output mode selection, and transmits this information to the main control unit 20. After receiving the voice input mode and output mode information transmitted by the mode selection unit 100, the main control unit 20 processes the user's voice input and output in the corresponding mode according to this information, that is, controls the high and low levels of the voice input and output switching unit 50, and then switches to the Bluetooth communication module 70 or the wireless communication module 80 to work, receives the audio input from the Bluetooth communication module 70 or the wireless communication module 80, and then outputs it through the voice amplifier unit 60. The voice amplifier unit 60 is mainly controlled by the main control unit 20 to work or not, and receives the audio transmitted by the voice input and output switching unit 50, and amplifies it for output.

[0052] The benefits of this design include:

[0053] Multi-functional voice interaction: Through the mode selection unit 100 and the voice input and output switching unit 50, the user can select the voice input mode and the output mode, so that the speaker has a variety of voice interaction methods in different scenarios, such as voice commands, voice replies, etc., providing a more intelligent user experience.

[0054] Convenient operation: Users can interact with the speaker through voice input without using other means for input, which improves the convenience and user-friendliness of operation.

[0055] Sound enhancement: Through the voice amplifier unit 60, the speaker can output the processed voice signal and amplify the volume so that the user can clearly hear the output voice information.

[0056] In general, the addition of the voice input and output switching unit 50 and the voice amplifier unit 60 enables the portable speaker with the rescue and positioning functions to have more voice interaction modes and sound enhancement functions, thereby improving the user experience and convenience.

[0057] In one embodiment, see Figure 1 The above-mentioned portable speaker with rescue and positioning functions also includes a Bluetooth communication module 70 and a wireless communication module 80; the wireless communication module 80 is connected to the main control unit 20.

[0058] In this embodiment, the wireless communication module 80 includes but is not limited to a 4G communication module.

[0059] The Bluetooth communication module 70 is used to support the Bluetooth communication function. Through the Bluetooth communication module 70, the speaker can perform wireless communication and data transmission with other Bluetooth devices, such as connecting to a mobile phone, a tablet computer, etc.

[0060] The wireless communication module 80 is a module that can support wireless network connection, including a 4G communication module for supporting 4G network connection. It is connected to the main control unit 20 and is responsible for the wireless communication function of the speaker.

[0061] The Bluetooth communication module 70 enables the speaker to perform wireless communication and data transmission with other Bluetooth devices, providing more connection methods and usage scenarios.

[0062] The 4G communication module in the wireless communication module 80 supports 4G network connection, which can achieve high-speed data transmission, enabling the speaker to obtain and process information more quickly.

[0063] The speaker can be connected to the network through the wireless communication module 80 to realize remote positioning and rescue functions. For example, in an emergency, the user can send a distress signal through the speaker and send the location information to relevant departments or relatives and friends.

[0064] In general, by adding the Bluetooth communication module 70 and the wireless communication module 80, the portable speaker with rescue and positioning functions has stronger communication capabilities and network connectivity, providing users with more application scenarios and convenience, while also increasing safety and the ability to seek help in emergency situations.

[0065] In one embodiment, see Figure 1 The above-mentioned portable speaker with rescue and positioning functions also includes a mode response unit 90, which is connected to the Bluetooth communication module 70 and the wireless communication module 80 respectively; the mode response unit 90 is used to realize independent multiplexing of buttons when the Bluetooth communication module 70 plays voice and the wireless communication module 80 plays voice.

[0066] Specifically, the mode response unit 90 is used to implement the response and key reuse of the corresponding selection mode, such as Bluetooth communication or wireless communication. When the Bluetooth communication module 70 plays voice or the wireless communication module 80 plays voice, the mode response unit 90 can realize independent key reuse, that is, different audio modes can be switched by keys.

[0067] When the Bluetooth communication module 70 or the wireless communication module 80 needs to play voice, the mode response unit 90 will receive the corresponding instruction.

[0068] The mode response unit 90 controls the function switching of the key according to the instruction, so that the key can have different functions in different audio modes, thereby realizing independent multiplexing of the key.

[0069] Through the mode response unit 90, the user can flexibly switch functions in different audio modes, thereby improving the convenience and flexibility of using the speaker.

[0070] Independent button reuse allows users to operate the speaker more conveniently in different scenarios without having to remember complicated operating steps, thus improving the user experience.

[0071] Independent button multiplexing can add more functions to the speaker, allowing users to use the speaker in a more diverse way to meet usage requirements in different needs and scenarios.

[0072] In general, by adding the mode response unit 90, the portable speaker with distress and positioning functions can realize independent multiplexing of buttons when playing voice, which improves the flexibility, ease of operation and functional extensibility of the speaker, and brings a better user experience.

[0073] The speaker of this embodiment has functions such as 4G communication, family number, voice control, SOS call, etc., and supports switching between TF card, Bluetooth, FM, and network modes through buttons. The speaker not only has the basic functions of a traditional Bluetooth speaker, but also can make calls through 4G Cat1, supports setting the family number call function, and can also use voice control to identify the convenient operation of audio content playback. At the same time, the speaker is also equipped with an SOS call function so that users can long press the SOS button to quickly ask for help in an emergency. In addition, the speaker also has a positioning function, which can view the current location in real time, which is helpful for personnel monitoring.

[0074] In one embodiment, the calling unit 10 includes a button, and a one-button calling method is adopted, which is convenient for users to use.

[0075] In one embodiment, see Figure 2 The above-mentioned positioning unit 30 includes an antenna operational amplifier gain amplifier circuit, a first radio frequency matching circuit, a second radio frequency matching circuit and a GPS positioning circuit; the antenna operational amplifier gain amplifier circuit is connected to the GPS positioning circuit; the first radio frequency matching circuit is connected to the antenna operational amplifier gain amplifier circuit; the second radio frequency matching circuit is connected between the antenna operational amplifier gain amplifier circuit and the GPS positioning circuit; the GPS positioning circuit is connected to the wireless communication module 80.

[0076] Specifically, the antenna operational amplifier gain amplification circuit includes an antenna operational amplifier chip U1 for gain amplification; the first RF matching circuit includes an inductor L2 and an inductor L26 connected in sequence, and also includes a capacitor C24 with one end connected between the inductor L2 and the inductor L26, and the other end of the capacitor C24 is grounded; the other end of the inductor L2 is also connected to the filter SF1, and the first RF matching circuit is used for RF matching between the filter SF1 and the operational amplifier; the second RF matching circuit includes a capacitor C14 connected between the antenna operational amplifier chip U1 and the GPS positioning circuit, and the capacitor C14 is connected between the antenna operational amplifier chip U1 and the GPS positioning circuit. A capacitor C161 with one end grounded is also connected, and capacitor C161 and capacitor C14 play the role of RF matching, filtering and matching between the antenna operational amplifier chip U1 and the GPS chip; the antenna operational amplifier chip U1 is also connected to capacitor C22 and capacitor C23, and capacitor C22 and capacitor C23 are the filter capacitors of the antenna operational amplifier chip U1; in addition, one end of the filter SF1 is also connected to the antenna, and a resistor R10, a capacitor C59 with one end grounded, and a capacitor C15 with one end grounded are connected between the filter SF1 and the antenna, and C59, R10 and C15 constitute the RF matching part between the antenna and the filter SF1.

[0077] In the present embodiment, the GPS positioning circuit includes a GPS positioning chip U4. In order to transmit positioning data, the GPS positioning chip U4 is connected to the wireless communication module 80 through a current limiting resistor R3 and a current limiting resistor R4. The GPS positioning chip U4 is connected to a capacitor C64, an inductor B1 and a capacitor C63 for filtering the RF power supply. The GPS positioning chip U4 is connected to a crystal oscillator Y2, a capacitor C12 and a capacitor C68 for providing the GPS operating frequency. The crystal oscillator Y1 is used as a 32.768K clock timing. The GPS positioning chip U4 is connected to C60, C72, C106, C107, L4, C66, C67 and C38, and its main function is to filter the power supply.

[0078] In general, these components play different roles in the circuit, including RF matching, filtering, current limiting and providing stable power supply to ensure effective communication and data transmission between GPS and communication modules. These components cooperate with each other to form a complete circuit system, realizing the transmission and processing of positioning data.

[0079] By properly selecting and connecting inductors, capacitors and other components, RF matching, filtering and matching between the antenna op amp chip and the GPS chip can be achieved to ensure the stability and quality of signal transmission. Through the design of components such as current limiting resistors, the power consumption of the circuit can be effectively controlled to ensure that the circuit works stably within the normal working range and extend the service life of the equipment. The use of filters and power filter circuits can effectively remove interference signals, improve the system's anti-interference ability, and ensure the accuracy and stability of data transmission. Through the design of crystal oscillators and clock timing components, a stable operating frequency and clock signal can be provided to ensure the accuracy and stability of the GPS positioning system. The design of the power filter circuit can provide clean and stable power to each module and chip to avoid the impact of power supply noise on system performance.

[0080] In summary, this circuit design can effectively improve the system's performance stability, anti-interference ability and power consumption efficiency, thereby ensuring the accurate transmission and processing of GPS positioning data and improving the reliability and performance of the overall system.

[0081] In one embodiment, see Figure 3 The above-mentioned family number unit 40 includes a dialing button, which is connected to the main control unit 20. The mode selection unit includes a switching button, which is connected to the main control unit 20.

[0082] Specifically, the dialing buttons include buttons SW4, SW5, SW6, SW7 and SW8; in addition, SW1 and SW2 are switching buttons, indicating voice assistant (MK_IN_4&MKOUT0) and mode switching (MK_IN_4&MK_OUT_4); in addition, button SW3 is the button corresponding to the call unit 10, indicating SOS (MK_IN_0&MKOUT0); buttons SW4, SW5, SW6, SW7 and SW8 indicate family number 1 (MK_IN_0 &MK_OUT_4) / 2(MK_IN_2&MKOUT0) / 3(MK_IN_2&MK_OUT_4) adopts a combination button form, among which the TVS tubes FV25, FV29, FV5, FV14, FV17, FV12, FV26 connected to the buttons are used for anti-static; the resistors R84, R83, R22 connected to the dial buttons are current limiting resistors, and the buttons SW1, SW2, SW3, SW4, SW5, SW6, SW7 and SW8 are used for trigger response.

[0083] In this embodiment, by connecting a TVS tube (bidirectional thyristor) to the dial button, static electricity can be effectively prevented from damaging the circuit, thereby improving the stability and reliability of the device. The setting of the current limiting resistor (R84, R83, R22) can limit the current, prevent excessive current from damaging the circuit components, and protect other components in the circuit. By setting the buttons SW1, SW2, SW3, SW4, SW5, SW6, SW7, and SW8, different functions can be triggered, such as voice assistant, mode switching, SOS help, etc., providing a user-friendly operating experience. The use of a combination of buttons (such as MK_IN_4&MKOUT0, MK_IN_0&MK_OUT_4, etc.) can achieve multi-functional rapid switching and operation, improving the flexibility and convenience of the device.

[0084] In summary, this design can effectively protect the circuit from external interference such as static electricity and provide a safe and stable operating environment; at the same time, by reasonably setting the current limiting resistor and button trigger function, it improves the reliability of the device and user experience, making the device more convenient and practical in daily use.

[0085] In one embodiment, see Figure 4 The above-mentioned voice input and output switching unit 50 includes a switch circuit, which includes an interface analog switch chip U17 and an interface analog switch chip U18, wherein the interface analog switch chip U17 is connected to an interface J8 connected to a microphone.

[0086] Specifically, due to the limitation of the structure of the portable speaker, there is only one microphone and one speaker, and only Bluetooth calls and playback, or voice assistant and network call mode performed by the wireless communication module 80 are possible.

[0087] In this embodiment, the direction of the MIC signal and the audio output signal is controlled by key switching or network call priority to achieve switching between different functions.

[0088] The design of the portable speaker allows for single microphone and single speaker, with flexible switch to achieve different functions:

[0089] Bluetooth call: In Bluetooth mode, you can switch the control port to transfer the MIC audio input to the Bluetooth BTMIC-IN signal to realize the Bluetooth call function.

[0090] Voice Assistant: When switching to voice assistant mode, the MIC audio input is switched to the communication module MICN signal for recognizing voice commands.

[0091] Network call priority: When a network call occurs, the MIC audio input is switched first to achieve high-priority network call function.

[0092] Audio output switching: According to the operation of the mode switch key, you can choose to output the audio through the communication module BB or Bluetooth BT to achieve audio output with different functions.

[0093] In summary, this design enables the portable speaker to flexibly switch between different functions, including Bluetooth calls, voice assistants, Internet calls, etc., improving user experience and practicality.

[0094] The MIC signal is connected to the 4PIN common port of the audio switch, i.e., the interface J8 of the switch circuit. The portable speaker uses the MICN signal of the wireless communication module 80 or the BTMIC-IN signal of the Bluetooth communication module 70 according to the currently defined function MIC input; specifically, the working principle of the voice input and output switching unit 50 in the audio input switching is as follows:

[0095] Switching mode 1: button switching. The direction of the MIC audio input signal is controlled by the switch button. When switching to Bluetooth mode, by pulling MIC_SEL / 32MIC high, the MIC audio input is switched to the Bluetooth (BT) BTMIC-IN signal for Bluetooth calls. When the switch button is switched to voice assistant mode, by pulling MIC_SEL / 32MIC low, the MIC audio input is switched to the MICN signal of the communication module (BB) for voice command recognition.

[0096] Switching mode 2: Network call. In Bluetooth mode, if a network call occurs, the wireless communication module 80 will pull MIC_SEL / 32MIC low and switch the MIC audio input to the MICN signal of the communication module to give priority to the network call.

[0097] The working principle of the voice input and output switching unit 50 in audio output switching is as follows:

[0098] Switching method 1: button switching. The direction of the audio output signal is controlled by the switch button. When switching to Bluetooth / memory card playback mode, by pulling SPK_SW / 07 high, the audio output is switched to the BTDAC audio output signal of the Bluetooth communication module, and finally drives the speaker to play through the audio amplifier. When the switch button is switched to broadcast, network and other content modes, by pulling SPK_SW / 07 low, the audio output is switched to the EARP audio output signal of the wireless communication module 80, and finally drives the speaker to play through the audio amplifier.

[0099] Switching mode 2: Network call. In the Bluetooth / memory card playback mode, if a network call occurs, the communication module (BB) will pull SPK_SW / 07 low, switch the audio output to the EARP audio output signal of the wireless communication module 80, and finally drive the speaker to play after passing through the audio amplifier.

[0100] The voice input and output switching unit 50 of this embodiment allows the user to flexibly switch audio input and output to achieve the use of different functions. For example, the user can switch to select functions such as Bluetooth calls and voice assistants by pressing buttons, and network calls have a high priority, and the audio input and output can be automatically switched. Such a design can provide a better user experience and enable the portable speaker to have diverse functions.

[0101] In one embodiment, see Figure 5 The above-mentioned voice power amplifier unit 60 includes a power amplifier chip U14. The model of the above-mentioned power amplifier chip U14 is but not limited to FT2830CP. The power amplifier chip U14 is connected to VBAT input filter capacitors C015, C014, and C90; the power amplifier chip U14 is connected to output filter capacitors C123 and C125; the Bluetooth communication module 70 and the wireless communication module 80 give the voice output INN after voice switching to the power amplifier chip U14 for voice input. The power amplifier chip U14 is connected to capacitor C116, resistor R120, capacitor C115 and resistor R121 for voice input matching. The power amplifier chip U14 is connected to inductor L10, capacitor C122, inductor L9, capacitor C121 for voice output matching. BT_SPK_EN is the Bluetooth communication module 70 to enable the power amplifier control, BB_SPK_GPIO22_EN is the wireless communication module 80 to enable the control, the power amplifier chip U14 is also connected to the diodes D21 and D22, and the power amplifier chip U14 is enabled through the unidirectional conductivity isolation of the diodes D21 and D22. The power amplifier chip U14 is also connected to the current limiting resistor R132, and the power amplifier chip U14 is also connected to the pull-down resistor R117, which is pulled low when the power amplifier chip U14 is not in use. The power amplifier chip U14 is also connected to a speaker for outputting audio.

[0102] In one embodiment, see Figure 6 and Figure 7 The above-mentioned Bluetooth communication module 70 includes a Bluetooth communication chip U16, and the Bluetooth communication chip U16 is also connected to an audio input matching circuit, which includes a capacitor C144, a resistor R164, a capacitor C145, a resistor R170, and a capacitor C150; the Bluetooth communication chip U16 is also connected to a capacitor C147, a resistor R0050, and a capacitor C025 for Bluetooth antenna matching; the communication part circuit of the Bluetooth communication module 70 and the wireless communication module 80 is connected through resistors R141 and R142, and the wireless communication module 80 is connected in series with resistor R2 and then connected to the Bluetooth communication module 70 to control the Bluetooth switch.

[0103] The above-mentioned wireless communication module 80 includes 4G chips U7-A, U7-B and U7-C. The 4G chips U7-A, U7-B and U7-C are also connected to audio input and output matching circuits. The audio input and output matching circuits include: R147, R148, C136 grounded at one end, C157 grounded at one end, C135 grounded at one end, C134 grounded at one end, C140, R145, C128 grounded at one end, R92; in addition, the above-mentioned 4G chips U7-A, U7-B and U7-C are also connected to 4G / WIFI antenna matching circuits. The 4G / WIFI antenna matching circuits include C0335, R0805 connected in sequence, and C0339, C0057, C0060 grounded at one end, which are used for related control signal output.

[0104] In one embodiment, the above-mentioned mode response unit 90 implements the independent multiplexing circuit of the buttons of the Bluetooth communication module 70 and the wireless communication module 80; the purpose is to reduce the protocol between the Bluetooth communication module 70 and the wireless communication module 80, and reduce the communication control workload of both parties. When the Bluetooth communication module 70 is playing, the Bluetooth control and response buttons are pressed, and the buttons of the wireless communication module 80 do not respond; when the wireless communication module 80 is playing, the wireless communication module 80 responds to the buttons, and the buttons of the Bluetooth communication module 70 do not respond.

[0105] In one embodiment, see Figure 8 , the above-mentioned mode response unit 90 includes an encoder J5. Specifically, the encoder J5 is connected to pull-up resistors R97, R98, TVS tubes FV38, TVS tubes FV39, TVS tubes FV40, current limiting resistors R82, R90, R149, wherein TVS tubes FV38, TVS tubes FV39, TVS tubes FV40 are anti-static, the volume control BTKEY2, BTKEY1 levels of the above-mentioned Bluetooth communication module 70 match the encoder J5, the Bluetooth communication module 70 is connected to the encoder J5 through resistors R82, R90, and controls the volume, the volume control KEY_GPIO73, KEY_GPIO72 levels of the wireless communication module 80 are only 1.8V, the wireless communication module 80 is connected through diodes D15 / D16 to isolate the DC, and is connected to the encoder J5 through R82 / R90 to control the volume. When the encoder J5 is rotated, the volume control outputs the corresponding waveform, and the Bluetooth communication module 70 and the wireless communication module 80 analyze the response.

[0106] The default voltage of the power button PWRKEY of the wireless communication module 80 is 4V, and the power button POWER_KEY of the Bluetooth communication module 70 is 3.3V. The Bluetooth communication module 70 is connected to the diode D13 for DC isolation, and then connected to the 5th pin of the encoder J5 through R149. When the button corresponding to the Bluetooth communication module 70 is pressed, the 2nd pin of the 5th pin is turned on and pulled down, and the Bluetooth communication module 70 and the wireless communication module 80 are turned on.

[0107] The up and down curves BTKEY4 / BTKEY3 corresponding to the Bluetooth communication module 70 have a level of 3.3V, and the up and down curves & answer and hang up KEY_GPIO71 / KEY_GPIO23 of the wireless communication module 80 have a level of 1.8V, so a 1.8V DC isolation is connected, and then connected to the button SW5 / SW4 through resistors R161 / R162. If the button is not pressed, it is high, and if it is pressed, it is low.

[0108] Encoder J5 is connected to a series of components, such as pull-up resistors, TVS tubes (anti-static tubes), current limiting resistors, etc., to control mode response.

[0109] The Bluetooth communication module 70 controls the volume through the resistors R82 and R90 connected to the encoder J5, and the volume control key of the Bluetooth communication module 70 matches the encoder J5.

[0110] The volume control key of the wireless communication module 80 is connected to the encoder J5 through the diode D15 / D16 for DC isolation, and the volume can also be controlled through R82 / R90.

[0111] The voltages of the power keys are different. The power key PWRKEY of the wireless communication module 80 defaults to 4V, while the power key POWER_KEY of the Bluetooth communication module 70 defaults to 3.3V.

[0112] The Bluetooth communication module 70 and the wireless communication module 80 are connected and powered on via key control.

[0113] By rotating encoder J5, users can control the volume and achieve corresponding waveform output, realizing audio mode switching and volume control.

[0114] The connection and control between the Bluetooth communication module 70 and the wireless communication module 80 realizes the coordinated operation of the wireless communication functions, making the operation of the device in different modes more flexible and convenient.

[0115] Through the design and connection method of the buttons, users can easily respond and control the modes, which improves the user experience and operational convenience.

[0116] In general, this design realizes the coordinated work of mode response, volume control and key operation between the Bluetooth communication module 70 and the wireless communication module 80 through the connection of the encoder J5 and various components, providing users with better operating experience and functional control capabilities.

[0117] The above-mentioned portable speaker with rescue and positioning functions, by setting a call unit 10, a main control unit 20 and a positioning unit 30, the call unit 10 can realize a one-button call function, and the positioning unit 30 can accurately locate the position of the speaker to meet the rescue positioning needs. In addition to realizing the basic speaker functions, it also has rescue and positioning communication functions, so that users can quickly seek help in emergency situations, meeting the needs of different scenarios.

[0118] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A portable speaker with rescue and positioning functions, characterized in that: include: A calling unit, a main control unit and a positioning unit; the calling unit is used to input a one-key calling signal; The positioning unit is used to obtain the positioning information of the speaker and transmit it to the main control unit; the main control unit is used to receive the one-key call signal and positioning information, and output the corresponding signal and positioning information to the set terminal.

2. A portable speaker with rescue and positioning functions according to claim 1, characterized in that: It also includes a family number unit, which is connected to the main control unit; the family number unit is used to obtain a family number call signal and transmit it to the main control unit so that the main control unit calls the corresponding family number.

3. A portable speaker with rescue and positioning functions according to any one of claims 1 to 2, characterized in that: It also includes a Bluetooth communication module and a wireless communication module; the Bluetooth communication module and the wireless communication module are respectively connected to the main control unit.

4. A portable speaker with rescue and positioning functions according to claim 3, characterized in that: It also includes a mode selection unit and a voice input and output switching unit, which are respectively connected to the main control unit; the mode selection unit is used to input the working mode of the speaker to the main control unit; the voice input and output switching unit is used to receive the output command of the main control unit, switch the voice input mode and output mode, so as to switch to the Bluetooth communication module or the wireless communication module, and receive the corresponding audio.

5. The portable speaker with rescue and positioning functions according to claim 3, characterized in that: It also includes a voice amplifier unit, which is connected to the main control unit and the voice input and output switching unit respectively. The voice amplifier unit is used to receive and amplify the audio from the voice input and output switching unit under the drive of the main control unit.

6. A portable speaker with rescue and positioning functions according to claim 5, characterized in that: It also includes a mode response unit, which is connected to the Bluetooth communication module and the wireless communication module respectively; the mode response unit is used to realize independent key multiplexing when the Bluetooth communication module plays voice and the wireless communication module plays voice.

7. The portable speaker with rescue and positioning functions according to claim 1, characterized in that: The calling unit includes a key.

8. The portable speaker with rescue and positioning functions according to claim 5, characterized in that: The positioning unit includes an antenna operational amplifier gain amplifier circuit, a first radio frequency matching circuit, a second radio frequency matching circuit and a GPS positioning circuit; the antenna operational amplifier gain amplifier circuit is connected to the GPS positioning circuit; the first radio frequency matching circuit is connected to the antenna operational amplifier gain amplifier circuit; the second radio frequency matching circuit is connected between the antenna operational amplifier gain amplifier circuit and the GPS positioning circuit; the GPS positioning circuit is connected to the wireless communication module.

9. The portable speaker with rescue and positioning functions according to claim 2, characterized in that: The family number unit includes a dial button, and the dial button is connected to the main control unit.

10. The portable speaker with rescue and positioning functions according to claim 4, characterized in that: The mode selection unit includes a switch button, and the switch button is connected to the main control unit.

Images