Control circuit of multifunctional vehicle-mounted pickup atmosphere lamp

Abstract

The utility model discloses a control circuit of a multifunctional vehicle-mounted pickup atmosphere lamp. The control circuit comprises a main control module, a radio module, a Bluetooth module, an FM radio frequency module, a power supply module and an atmosphere lamp module. The power supply module is electrically connected to the main control module, the FM radio frequency module and the atmosphere lamp module; the main control module is electrically connected with the radio module, the Bluetooth module, the FM radio frequency module and the atmosphere lamp module; the main control module is used for processing the external environment sound received by the sound receiving module and controlling the atmosphere lamp module to work according to a sound processing result, and the main control module is also used for processing the Bluetooth signal received by the Bluetooth module and controlling the FM radio frequency module to emit a radio signal according to a Bluetooth signal processing result. By means of the circuit structure, the atmosphere lamp is convenient to control, the visual effect of the atmosphere lamp is improved, Bluetooth and radio frequency functions are added to the atmosphere lamp, the function of the atmosphere lamp is not single any more, driving convenience and interestingness are improved, and the riding experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ambient lights, in particular to a control circuit of a multifunctional in-vehicle voice-activated ambient light. Background Art

[0002] In-vehicle ambient lights are commonly used electrical appliances in vehicles. However, in real life, most in-vehicle ambient lights use buttons to manually set the color and brightness of the ambient lights, resulting in a single control method for the ambient lights. The color and brightness of the ambient lights cannot be automatically controlled, making it inconvenient for users to control the lighting effects of the ambient lights and resulting in poor visual effects. Moreover, there are still a large number of in-vehicle players on the market that cannot connect to a mobile phone via Bluetooth to play the audio in the mobile phone, but can only listen to FM radio stations or play the audio in a storage device inserted into the player, resulting in users not being able to enjoy a convenient playback method and a poor driving experience. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a control circuit of a multifunctional in-vehicle voice-activated ambient light.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The embodiment of the utility model provides a control circuit of a multifunctional in-vehicle voice-activated ambient light, which includes a main control module, a sound collection module, a Bluetooth module, an FM radio frequency module, a power supply module and an ambient light module; the power supply module is electrically connected to the main control module, the FM radio frequency module and the ambient light module; the main control module is electrically connected to the sound collection module, the Bluetooth module, the FM radio frequency module and the ambient light module; the sound collection module is used to collect external environmental sounds; the Bluetooth module is used to receive Bluetooth signals; the main control module is used to process the external environmental sounds and control the operation of the ambient light module according to the sound processing results, and the main control module is also used to process the Bluetooth signals and control the FM radio frequency module to emit radio signals according to the Bluetooth signal processing results.

[0006] In one embodiment, the main control module includes a main control chip U1, and the model of the main control chip U1 is ATS2853.

[0007] In one embodiment, the sound collection module includes a microphone, resistor R1, resistor R2, capacitor C1, capacitor C2, and capacitor C3; the positive pole of the microphone is connected to one end of capacitor C1 and resistor R1, the other end of capacitor C1 is connected to pin 8 of the main control chip U1; the other end of resistor R1 is connected to one end of capacitor C2, capacitor C3, and resistor R2; the other end of capacitor C2 is connected to pin 7 of the main control chip U1; the other end of capacitor C3 is connected to the negative pole of the microphone; the other end of resistor R2 is connected to pin 4 of the main control chip U1.

[0008] In one embodiment, the atmosphere lamp module includes an atmosphere lamp driving circuit and an atmosphere lamp circuit; the atmosphere lamp driving circuit is connected to the power supply module and pin 33 of the main control chip U1; one end of the atmosphere lamp circuit is connected to the atmosphere lamp driving circuit, and the other end of the atmosphere lamp circuit is also connected to one end of a resistor R3, and the other end of resistor R3 is connected to pin 32 of the main control chip U1.

[0009] In one embodiment, the atmosphere lamp driving circuit includes resistor R4, resistor R5, resistor R6, resistor R7, triode U2, and MOS transistor Q1; one end of resistor R6 is connected to pin 33 of the main control chip U1, the other end of resistor R6 is connected to one end of resistor R7 and the base of triode U2; the other end of resistor R7 is connected to the emitter of triode U2; the collector of triode U2 is connected to one end of resistor R5 and the gate of MOS transistor Q1; the other end of resistor R5 and the source of MOS transistor Q1 are both connected to one end of resistor R4, the other end of resistor R4 is connected to the power supply module; the drain of MOS transistor Q1 is connected to the atmosphere lamp circuit.

[0010] In one embodiment, the FM radio frequency module includes an FM transmitting chip U3 and a radio frequency amplifier circuit. The model of the FM transmitting chip U3 is QN8027. One end of a resistor R9 is connected to pin 9 of the FM transmitting chip U3, the other end of resistor R9 is connected to one end of another capacitor C31, and the other end of capacitor C31 is connected to pin 13 of the main control chip U1. One end of a resistor R8 is connected to pin 10 of the FM transmitting chip U3, the other end of resistor R8 is connected to one end of a capacitor C30, and the other end of capacitor C30 is connected to pin 14 of the main control chip U1. Pin 7 of the FM transmitting chip U3 is connected to pin 16 of the main control chip U1, pin 6 of the FM transmitting chip U3 is connected to pin 17 of the main control chip U1, and pin 5 of the FM transmitting chip U3 is also connected to the radio frequency amplifier circuit.

[0011] In one embodiment, the radio frequency amplifier circuit includes a resistor R12, a resistor R13, a capacitor C35, a capacitor C36, a capacitor C37, an inductor L1, an inductor L2, and a triode U4; one end of the capacitor C37 and one end of the inductor L1 are connected to pin 5 of the FM transmitting chip U3; the other end of the capacitor C37 is connected to one end of the resistor R13 and the base of the triode U4; the emitter of the triode U4 is grounded; the other end of the resistor R13 is connected to the collector of the triode U4, the capacitor C35, the capacitor C36, and one end of the inductor L2; the other end of the capacitor C35 is connected to the other end of the inductor L2 and one end of the resistor R12; the other end of the resistor R12 is connected to the power supply module; the other end of the capacitor C36 is connected to an antenna, and the antenna is used to emit radio signals.

[0012] In one embodiment, the power supply module includes a buck converter U5, a resistor R14, a resistor R15, a capacitor C38, and an inductor L3; pin 3 of the buck converter U5 is connected to a voltage input terminal; one end of the resistor R15 is connected to pin 1 of the buck converter U5, and the other end is connected to a voltage output terminal; the voltage output terminal is also connected to one end of the inductor L3, and the other end of the inductor L3 is connected to pin 4 of the buck converter U5 and one end of the capacitor C38; the other end of the capacitor C38 is connected to pin 5 of the buck converter U5; the voltage input terminal is used to connect to an external power supply, and the voltage output terminal is connected to the main control chip U1, the FM radio frequency module, and the atmosphere lamp module.

[0013] In one embodiment, a USB module is further included. The USB module is connected to pins 43 and 44 of the main control chip U1. The USB module is used to read external input information, and the main control chip U1 is further used to process the external input information and control the FM radio frequency module to emit radio signals according to the processing result of the external input information.

[0014] In one embodiment, a fast charging control module is further included. The fast charging control module is connected to the USB module. The fast charging control module is used to connect to an external power supply and perform control conversion on the external power supply to obtain a fast charging current and a fast charging voltage. The USB module is further used to output the fast charging current and the fast charging voltage.

[0015] The control circuit of the multifunctional in-vehicle sound-pickup atmosphere lamp of the present utility model has the following beneficial effects compared with the prior art: By providing a sound collection module for collecting external environmental sounds, and a main control module for processing the external environmental sounds and controlling the operation of the atmosphere lamp module according to the sound processing results, the atmosphere lamp module can be directly controlled by sound, which is convenient for control. The atmosphere lamp module can quickly switch between multiple lighting effects according to the external environmental sounds, improving the visual effect of the atmosphere lamp. At the same time, a Bluetooth module and an FM radio frequency module are also provided. The Bluetooth module is used to receive Bluetooth signals sent by other devices (such as mobile phones), and the main control module is also used to process the Bluetooth signals and control the FM radio frequency module to send radio signals to the in-vehicle player according to the Bluetooth signal processing results, enabling the in-vehicle player to connect to the mobile phone Bluetooth to play mobile phone audio, making the function of the atmosphere lamp no longer single, enhancing the convenience, safety and interest of driving, and bringing a more rich and personalized riding experience for users.

[0016] The following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for use in the embodiments or the description of the prior art. Obviously, the following described accompanying drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0018] Figure 1 It is a block diagram of the control circuit of the multifunctional in-vehicle sound-pickup atmosphere lamp provided by the present utility model;

[0019] Figure 2 It is a schematic diagram of the application scenario of the control circuit of the multifunctional in-vehicle sound-pickup atmosphere lamp provided by the present utility model;

[0020] Figure 3 It is a circuit schematic diagram of the main control module provided by the present utility model;

[0021] Figure 4 It is a circuit schematic diagram of the sound collection module provided by the present utility model;

[0022] Figure 5 It is a circuit schematic diagram of the atmosphere lamp module provided by the present utility model;

[0023] Figure 6 It is a circuit schematic diagram of the FM radio frequency module provided by the present utility model;

[0024] Figure 7 It is a circuit schematic diagram of the radio frequency amplifier circuit provided by the present utility model;

[0025] Figure 8 The circuit schematic diagram of the power supply module provided by the present utility model;

[0026] Figure 9 The circuit schematic diagram of the fast charging control module provided by the present utility model;

[0027] Figure 10 The circuit schematic diagram of the key control module provided by the present utility model;

[0028] Figure 11 The circuit schematic diagram of the LCD display module provided by the present utility model.

[0029] Reference numerals

[0030] 1. Main control module; 2. Radio module; 3. Bluetooth module; 4. FM radio frequency module; 5. Power supply module; 6. Ambient light module; 7. USB module; 8. Fast charging control module; 9. Key control module; 10. Dial control module; 11. LCD display module. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0034] In the present utility model, unless otherwise clearly defined or limited, terms such as "installation", "connection", "coupling", "fixation", etc. shall be understood in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly defined or limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0037] See Figures 1 to 11 As shown, a specific embodiment of a control circuit of a multifunctional vehicle-mounted sound pickup atmosphere lamp is disclosed in the present utility model, which includes a main control module 1, a sound pickup module 2, a Bluetooth module 3, an FM radio frequency module 4, a power supply module 5 and an atmosphere lamp module 6; the power supply module 5 is electrically connected to the main control module 1, the FM radio frequency module 4 and the atmosphere lamp module 6; the main control module 1 is electrically connected to the sound pickup module 2, the Bluetooth module 3, the FM radio frequency module 4 and the atmosphere lamp module 6; the sound pickup module 2 is used to collect external environmental sounds; the Bluetooth module 3 is used to receive Bluetooth signals; the main control module 1 is used to process external environmental sounds and control the operation of the atmosphere lamp module 6 according to the sound processing results, and the main control module 1 is also used to process Bluetooth signals and control the FM radio frequency module 4 to emit radio signals according to the Bluetooth signal processing results.

[0038] Specifically, the external environmental sounds collected by the sound collection module 2 include, but are not limited to, mode switching instructions, music, and wind and rain sounds. The main control module 1 controls the atmosphere light module 6 to switch the light mode or change the light effects following the music and wind and rain sounds according to the received mode switching instructions or music and wind and rain sounds, which improves the visual effect of the atmosphere light and can also achieve the effect of quickly controlling the atmosphere light, enabling the driver not to be distracted to manually adjust the light. Especially at night or in complex road conditions, the driver can be more focused on driving, greatly enhancing the driving convenience, interest, and safety. At the same time, the Bluetooth module 3 can receive Bluetooth signals sent by external devices (such as mobile phones). The main control module 1 controls the FM radio frequency module 4 to send radio signals to the in-vehicle player according to the Bluetooth signals, enabling the in-vehicle player to play high-quality audio in the external device, realizing the interaction among the external device, the atmosphere light, and the in-vehicle player, making the function of the atmosphere light no longer single. All passengers in the vehicle can connect to the in-vehicle player by connecting to the Bluetooth module 3, thereby sharing audio content among passengers in the vehicle, enhancing the interaction and emotional communication among passengers in the vehicle, making long-distance travel no longer monotonous, and bringing a more rich and personalized riding experience to users.

[0039] See Figures 2 to 3 As shown, in a specific embodiment, the main control module 1 includes a main control chip U1, and the model of the main control chip U1 is ATS2853.

[0040] Specifically, the main control chip with the model of ATS2853 has the advantages of stable and efficient Bluetooth connection, strong audio processing ability, multi-interface support, and strong programmability. By adopting ATS2853 as the main control chip, the reliability of the control circuit of the atmosphere light can be stronger, and it is convenient for the development of various functions.

[0041] See Figure 4 As shown, in a specific embodiment, the sound collection module 2 includes a microphone, a resistor R1, a resistor R2, a capacitor C1, a capacitor C2, and a capacitor C3; the positive pole of the microphone is connected to one end of the capacitor C1 and the resistor R1, the other end of the capacitor C1 is connected to the pin 8 of the main control chip U1; the other end of the resistor R1 is connected to one end of the capacitor C2, the capacitor C3, and the resistor R2; the other end of the capacitor C2 is connected to the pin 7 of the main control chip U1; the other end of the capacitor C3 is connected to the negative pole of the microphone; the other end of the resistor R2 is connected to the pin 4 of the main control chip U1.

[0042] Specifically, pin 8 of the main control chip U1 is the INPUTOL pin, and pin 7 of the main control chip U1 is the INPUTOR pin. By connecting pin 7 and pin 8 of the main control chip U1, the audio of the external environmental sound is input into the main control chip; pin 4 of the main control chip U1 is the AVCC pin. By connecting the AVCC pin, the main control chip supplies power to the radio module 2 to enable the radio module 2 to work properly; the positive pole of the microphone is also connected to a fuse E1 and grounded through the fuse E1. The other end of the capacitor C3 and the negative pole of the microphone are grounded at the same potential to prevent overcurrent from damaging the circuit; the capacitors C1, C2, and C3 play a role in filtering and decoupling to prevent the electrical signal from being interfered and affecting the audio quality; the resistors R1 and R2 play a role in current limiting to prevent excessive current from flowing into the circuit. When the sound signal enters the radio module 2, an electrical signal is generated between the positive and negative poles of the microphone, enabling the radio module 2 to convert and amplify the audio and input the stable audio into the main control chip, realizing the function of picking up the external environmental sound.

[0043] See Figure 5 As shown, in a specific embodiment, the ambient light module 6 includes an ambient light driving circuit and an ambient light circuit; the ambient light driving circuit is connected to the power supply module 5 and pin 33 of the main control chip U1; one end of the ambient light circuit is connected to the ambient light driving circuit, and the other end of the ambient light circuit is also connected to one end of a resistor R3, and the other end of the resistor R3 is connected to pin 32 of the main control chip U1.

[0044] Specifically, by connecting the ambient light module 6 to pins 32 and 33 of the main control chip, the ambient light driving circuit can control the operation of the ambient light module 6 according to the audio data and control signals output by the main control chip U1, so as to achieve the effect that the ambient light module 6 switches the light mode following the external environmental sound, thereby realizing the fast control of the ambient light and improving the visual effect of the ambient light, greatly enhancing the convenience and interest of driving.

[0045] In a specific embodiment, the ambient light driving circuit includes resistors R4, R5, R6, R7, a triode U2, and a MOS transistor Q1; one end of the resistor R6 is connected to pin 33 of the main control chip U1, and the other end of the resistor R6 is connected to one end of the resistor R7 and the base of the triode U2; the other end of the resistor R7 is connected to the emitter of the triode U2; the collector of the triode U2 is connected to one end of the resistor R5 and the gate of the MOS transistor Q1; the other ends of the resistor R5 and the source of the MOS transistor Q1 are both connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the power supply module 5; the drain of the MOS transistor Q1 is connected to the ambient light circuit.

[0046] Specifically, the resistor R6 and the transistor U2 amplify and transmit the control signal output by the main control chip U1. The control signal controls the on or off state of the MOS tube Q1, thereby realizing the driving and control of the atmosphere light circuit, so that the atmosphere light driving circuit can control the switch, brightness and color adjustment of the atmosphere light according to the external environmental sound.

[0047] See also Figure 6 As shown, in a specific embodiment, the FM radio frequency module 4 includes an FM transmitting chip U3 and a radio frequency amplifier circuit. The model of the FM transmitting chip U3 is QN8027. Pin 9 of the FM transmitting chip U3 is connected to one end of a resistor R9, the other end of the resistor R9 is connected to one end of another capacitor C31, the other end of the capacitor C31 is connected to pin 13 of the main control chip U1, pin 10 of the FM transmitting chip U3 is connected to one end of a resistor R8, the other end of the resistor R8 is connected to one end of a capacitor C30, the other end of the capacitor C30 is connected to pin 14 of the main control chip U1, pin 7 of the FM transmitting chip U3 is connected to pin 16 of the main control chip U1, pin 6 of the FM transmitting chip U3 is connected to pin 17 of the main control chip U1, and pin 5 of the FM transmitting chip U3 is also connected to the radio frequency amplifier circuit.

[0048] Specifically, the FM transmitting chip U3 is used to perform spectrum analysis and processing on the Bluetooth signal received by the main control chip U1 to obtain an FM modulated signal, and transmit the FM modulated signal to the radio frequency amplifier circuit.

[0049] See also Figure 7 As shown, in a specific embodiment, the RF amplifier circuit includes a resistor R12, a resistor R13, a capacitor C35, a capacitor C36, a capacitor C37, an inductor L1, an inductor L2 and a transistor U4; one end of the capacitor C37 and one end of the inductor L1 are connected to the pin 5 of the FM transmitting chip U3; the other end of the capacitor C37 is connected to one end of the resistor R13 and the base of the transistor U4; the emitter of the transistor U4 is grounded; the other end of the resistor R13 is connected to the collector of the transistor U4, and is also connected to the capacitor C35, the capacitor C36 and one end of the inductor L2; the other end of the capacitor C35 is connected to the other end of the inductor L2, and is also connected to one end of the resistor R12; the other end of the resistor R12 is connected to the power supply module 5; the other end of the capacitor C36 is connected to an antenna, and the antenna is used to send a radio signal.

[0050] Specifically, the FM modulated signal is amplified, denoised, and the audio gain is adjusted through the RF amplifier circuit to obtain a radio signal suitable for transmission, and the radio signal is sent to the car player through the antenna, thereby converting the Bluetooth signal into a radio signal that can be received by the car player.

[0051] See also Figure 8As shown, in a specific embodiment, the power supply module 5 includes a buck converter U5, a resistor R14, a resistor R15, a capacitor C38, and an inductor L3; pin 3 of the buck converter U5 is connected to a voltage input terminal; one end of the resistor R15 is connected to pin 1 of the buck converter U5, and the other end is connected to a voltage output terminal; the voltage output terminal is also connected to one end of the inductor L3, and the other end of the inductor L3 is connected to pin 4 of the buck converter U5 and one end of the capacitor C38; the other end of the capacitor C38 is connected to pin 5 of the buck converter U5; the voltage input terminal is used to connect to an external power supply, and the voltage output terminal is connected to the main control chip U1, the FM radio frequency module 4, and the atmosphere light module 6.

[0052] Specifically, the voltage output terminal is connected to the positive electrode of a Schottky diode D1 (not shown in the figure), and the negative electrode of the Schottky diode D1 is connected to pin 47 (BAT pin) of the main control chip U1, so that the voltage output terminal supplies power to the main control chip U1; the voltage output terminal is also connected to the other end of the resistor R4 and the other end of the resistor R12 to supply power to the atmosphere light driving circuit and the FM radio frequency module 4 respectively; the voltage input terminal draws power from the in-vehicle cigarette lighter interface, and the buck converter U5 converts the input voltage into a low voltage and supplies it to the main control chip U1, the FM radio frequency module 4, and the atmosphere light module 6 for use through the voltage output terminal.

[0053] In a specific embodiment, the control circuit of the multifunctional in-vehicle voice pickup atmosphere light further includes a USB module 7. The USB module 7 is connected to pins 43 and 44 of the main control chip U1. The USB module 7 is used to read external input information, and the main control chip U1 is also used to process the external input information and control the FM radio frequency module 4 to emit radio signals according to the processing result of the external input information.

[0054] Specifically, the USB module 7 includes a reading interface. The type of the reading interface includes but is not limited to a USB interface or a USB Type-C interface. The reading interface is used to connect to an external storage device (such as a USB flash drive) and read the information of the external storage device to obtain external input information. The main control chip U1 is used to process the audio data in the external input information and control the FM radio frequency module 4 to emit radio signals according to the processing result of the external input information, so that the in-vehicle player can play the audio in the external storage device after receiving the radio signal.

[0055] See Figure 9 As shown, in a specific embodiment, the control circuit of the multifunctional in-vehicle voice pickup atmosphere light further includes a fast charging control module 8. The fast charging control module 8 is connected to the USB module 7. The fast charging control module 8 is used to connect to an external power supply and perform control conversion on the external power supply to obtain a fast charging current and a fast charging voltage. The USB module 7 is also used to output the fast charging current and the fast charging voltage.

[0056] Specifically, the fast charging control module 8 includes a buck converter U6 and a multi-functional USB dual-port controller U7 connected to the buck converter U6. The buck converter U6 is used to access an external power supply and convert the external power supply into low-voltage electricity. The multi-functional USB dual-port controller U7 is used to convert the low-voltage electricity into fast charging power and deliver it to the USB module 7. Thus, the external device can be quickly charged by connecting it to the USB module 7, adding a fast charging function to the ambient light and improving the user experience of the ambient light. The model of U6 is CX8523, and the model of U7 is CX2920AC.

[0057] Preferably, the fast charging control module 8 and the power supply module 5 also draw power from the vehicle cigarette lighter interface. Through the above-mentioned fast charging control module 8 and USB module 7, when the external device is charging, it does not need to occupy the built-in charging port of the car, and the cigarette lighter interface in the car is converted into a fast charging port, which is convenient for quickly charging the external device when riding in the car.

[0058] See Figure 10 As shown, in a specific embodiment, the control circuit of the multi-functional in-vehicle voice pickup ambient light further includes a key control module 9 connected to the main control chip U1; the key control module 9 includes a resistor R26, a resistor R27, a resistor R28, a resistor R29, a key switch K1, a key switch K2, and a key switch K3; one end of the resistor R27 is connected to the pin 19 of the main control chip U1, the other end of the resistor R27 is connected to one ends of the resistor R27, the resistor R28, and the resistor R29, and the other ends of the resistor R27, the resistor R28, and the resistor R29 are respectively connected to the ground through the key switch K1, the key switch K2, and the key switch K3; the other end of the resistor R27 is also connected to the pin 23 of the main control chip U1.

[0059] Specifically, the resistance values of resistor R27, resistor R28, and resistor R29 are all different. When push-button switch K1, push-button switch K2, and push-button switch K3 are respectively pressed, pin 23 of main control chip U1 recognizes different resistance values connected to the circuit, thereby recognizing the operation instructions of the button control module 9. More specifically, crystal oscillator Y1 and crystal oscillator Y2 are respectively connected to main control chip U1 and FM transmitting chip U3. Crystal oscillator Y1 and crystal oscillator Y2 are used for timing and respectively send clock signals to main control chip U1 and FM transmitting chip U3. When FM radio frequency module 4 is not connected, single-clicking push-button switch K1 connects resistor R26 and resistor R27 to the circuit to trigger a first pulse signal. After main control chip U1 receives the first pulse signal, it controls the switching of the lighting mode of the ambient light; long-pressing push-button switch K1 connects resistor R26 and resistor R27 to the circuit, crystal oscillator Y1 times and sends a clock signal to main control chip U1, then main control chip U1 controls the ambient light to shut down. The operating principles of push-button switches K2 and K3 are similar to that of push-button switch K1. Among them, single-clicking push-button switch K2 is used to switch the audio in the external storage device played by the in-vehicle player to the previous track, and single-clicking push-button switch K3 is used to switch the audio in the external storage device played by the in-vehicle player to the next track. Long-pressing push-button switch K2 or K3 connects FM radio frequency module 4 to enter the FM frequency point adjustment mode. In the FM transmission mode, single-clicking push-button switch K2 increases the receiving audio frequency point of FM radio frequency module 4 by 1 MHz, and single-clicking push-button switch K3 decreases the receiving audio frequency point of FM radio frequency module 4 by 1 MHz.

[0060] In a specific embodiment, the control circuit of the multifunctional in-vehicle voice pickup ambient light further includes a dial control module 10 connected to main control chip U1, and the dial control module 10 includes a dial button.

[0061] Specifically, different pulse signals can be triggered by single-clicking, double-clicking, or turning the dial button, so that after main control chip U1 receives different pulse signals, it can achieve comprehensive control of multiple modules. Among them, single-clicking the dial button can control music pause / play, phone call answer / hang up, and active confirmation of FM frequency point; double-clicking the dial button can redial the phone, long-press to wake up the device voice assistant, and long-press during a call to switch between the mobile phone and Bluetooth answer; turning the dial button during music playback controls the volume + clockwise and the volume - counterclockwise; in the FM frequency modulation mode, turning the dial button clockwise increases the frequency point of FM radio frequency module 4 by 0.1 M, and vice versa, the frequency point of FM radio frequency module 4 decreases by 0.1 M.

[0062] Through the above button control module 9 and dial control module 10, various pulse signals can be sent to main control chip U1, so that after main control chip U1 receives different pulse signals, it can achieve comprehensive control of multiple modules, making the ambient light have more functions and be convenient to control, and improving the driving experience.

[0063] See Figure 11 As shown, in a specific embodiment, the control circuit of the multifunctional in-vehicle sound pickup atmosphere lamp further includes an LCD display module 11. The LCD display module 11 includes a digital tube, and the digital tube is connected to the main control chip U1. The digital tube is used to display radio channel information, song information, and date and time, and cooperate with the main control chip U1, the button control module 9, and the dial control module 10, which is convenient for the main control chip U1 to comprehensively control multiple modules.

[0064] The above embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A control circuit for a multifunctional vehicle-mounted sound pickup atmosphere lamp, characterized in that: It includes a main control module, a radio module, a Bluetooth module, an FM radio module, a power supply module and an atmosphere light module; the power supply module is electrically connected to the main control module, the FM radio module and the atmosphere light module; the main control module is electrically connected to the radio module, the Bluetooth module, the FM radio module and the atmosphere light module; the radio module is used to collect external environmental sounds; the Bluetooth module is used to receive Bluetooth signals; the main control module is used to process the external environmental sounds and control the atmosphere light module to work according to the sound processing results, and the main control module is also used to process the Bluetooth signals and control the FM radio module to send radio signals according to the Bluetooth signal processing results.

2. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 1 is characterized in that: The main control module includes a main control chip U1, and the model of the main control chip U1 is ATS2853.

3. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 2 is characterized in that: The sound receiving module includes a microphone, a resistor R1, a resistor R2, a capacitor C1, a capacitor C2 and a capacitor C3; the positive electrode of the microphone is connected to the capacitor C1 and one end of the resistor R1, and the other end of the capacitor C1 is connected to pin 8 of the main control chip U1; the other end of the resistor R1 is connected to the capacitor C2, the capacitor C3 and one end of the resistor R2; the other end of the capacitor C2 is connected to pin 7 of the main control chip U1; the other end of the capacitor C3 is connected to the negative electrode of the microphone; the other end of the resistor R2 is connected to pin 4 of the main control chip U1.

4. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 2 is characterized in that: The atmosphere light module includes an atmosphere light driving circuit and an atmosphere light circuit; the atmosphere light driving circuit is connected to the power supply module and pin 33 of the main control chip U1; one end of the atmosphere light circuit is connected to the atmosphere light driving circuit, and the other end of the atmosphere light circuit is also connected to one end of a resistor R3, and the other end of the resistor R3 is connected to pin 32 of the main control chip U1.

5. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 4 is characterized in that: The atmosphere lamp driving circuit includes a resistor R4, a resistor R5, a resistor R6, a resistor R7, a transistor U2 and a MOS tube Q1; one end of the resistor R6 is connected to the pin 33 of the main control chip U1, and the other end of the resistor R6 is connected to one end of the resistor R7 and the base of the transistor U2; the other end of the resistor R7 is connected to the emitter of the transistor U2; the collector of the transistor U2 is connected to one end of the resistor R5 and the gate of the MOS tube Q1; the other end of the resistor R5 and the source of the MOS tube Q1 are both connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the power supply module; the drain of the MOS tube Q1 is connected to the atmosphere lamp circuit.

6. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 2 is characterized in that: The FM radio frequency module includes an FM transmitting chip U3 and a radio frequency amplifier circuit. The model of the FM transmitting chip U3 is QN8027. Pin 9 of the FM transmitting chip U3 is connected to one end of a resistor R9, the other end of the resistor R9 is connected to one end of another capacitor C31, the other end of the capacitor C31 is connected to pin 13 of the main control chip U1, pin 10 of the FM transmitting chip U3 is connected to one end of a resistor R8, the other end of the resistor R8 is connected to one end of a capacitor C30, the other end of the capacitor C30 is connected to pin 14 of the main control chip U1, pin 7 of the FM transmitting chip U3 is connected to pin 16 of the main control chip U1, pin 6 of the FM transmitting chip U3 is connected to pin 17 of the main control chip U1, and pin 5 of the FM transmitting chip U3 is also connected to the radio frequency amplifier circuit.

7. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 6, characterized in that: The RF amplifier circuit includes a resistor R12, a resistor R13, a capacitor C35, a capacitor C36, a capacitor C37, an inductor L1, an inductor L2 and a transistor U4; one end of the capacitor C37 and one end of the inductor L1 are connected to pin 5 of the FM transmitting chip U3; the other end of the capacitor C37 is connected to one end of the resistor R13 and the base of the transistor U4; the emitter of the transistor U4 is grounded; the other end of the resistor R13 is connected to the collector of the transistor U4, the capacitor C35, the capacitor C36 and one end of the inductor L2; the other end of the capacitor C35 is connected to the other end of the inductor L2 and one end of the resistor R12; the other end of the resistor R12 is connected to the power supply module; the other end of the capacitor C36 is connected to an antenna, which is used to send a radio signal.

8. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 2 is characterized in that: The power supply module includes a buck converter U5, a resistor R14, a resistor R15, a capacitor C38 and an inductor L3; pin 3 of the buck converter U5 is connected to a voltage input terminal; one end of the resistor R15 is connected to pin 1 of the buck converter U5, and the other end is connected to a voltage output terminal; the voltage output terminal is also connected to one end of the inductor L3, and the other end of the inductor L3 is connected to pin 4 of the buck converter U5 and one end of the capacitor C38; the other end of the capacitor C38 is connected to pin 5 of the buck converter U5; the voltage input terminal is used to connect an external power supply, and the voltage output terminal is connected to the main control chip U1, the FM radio frequency module and the atmosphere light module.

9. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 2, characterized in that: The control circuit also includes a USB module, which is connected to pins 43 and 44 of the main control chip U1. The USB module is used to read external input information. The main control chip U1 is also used to process the external input information and control the FM radio frequency module to send a radio signal according to the processing result of the external input information.

10. The control circuit of the multifunctional vehicle-mounted sound pickup atmosphere lamp according to claim 9, characterized in that: The control circuit also includes a fast charging control module, which is connected to the USB module. The fast charging control module is used to connect to an external power supply and control the conversion of the external power supply to obtain a fast charging current and a fast charging voltage. The USB module is also used to output the fast charging current and the fast charging voltage.

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