CN115173873A - Vehicle-mounted wireless receiving circuit, effector and automobile - Google Patents
Vehicle-mounted wireless receiving circuit, effector and automobile Download PDFInfo
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- CN115173873A CN115173873A CN202210576447.8A CN202210576447A CN115173873A CN 115173873 A CN115173873 A CN 115173873A CN 202210576447 A CN202210576447 A CN 202210576447A CN 115173873 A CN115173873 A CN 115173873A
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- 239000012636 effector Substances 0.000 title claims abstract description 19
- 230000005236 sound signal Effects 0.000 claims abstract description 54
- 230000000694 effects Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000006870 function Effects 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/08—Constructional details, e.g. cabinet
- H04B1/082—Constructional details, e.g. cabinet to be used in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Abstract
The invention provides a vehicle-mounted wireless receiving circuit, an effector and an automobile, wherein the vehicle-mounted wireless receiving circuit receives an audio signal output by a wireless microphone through an audio receiving module and sends the audio signal to a DSP module; the DSP module adjusts the audio signal and sends the adjusted audio signal to the storage module through the interface expansion module for storage; the interface expansion module receives the data signal sent by the vehicle-mounted equipment and sends the data signal to the storage module for storage. In the invention, the interface expansion module is arranged in the wireless receiving circuit, the interface expansion module can be used for receiving the audio signal input by the microphone and receiving the data signal of other vehicle-mounted equipment and storing the data signal by using the storage module, and the loss of the functions of other vehicle-mounted equipment can be effectively avoided under the condition of satisfying the singing of the microphone.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle-mounted wireless receiving circuit, an effector and an automobile.
Background
In order to ensure driving safety and comfort during driving, drivers generally play music through vehicle-mounted equipment and hum according to the music rhythm, so that more and more entertainment equipment such as microphones are connected to vehicles. The interfaces and memory space inside the automobile are limited, and if the vehicle-mounted entertainment equipment occupies the data interface of the vehicle, the functions of other vehicle-mounted equipment, such as a driving recorder and other entertainment equipment, are lost.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a vehicle-mounted wireless receiving circuit, an effector and an automobile, and aims to solve the technical problem that in the prior art, the number of vehicle interfaces for data transmission is small, and other vehicle-mounted equipment loses functions under the condition that the vehicle interfaces are occupied.
In order to achieve the above object, the present invention provides a vehicle-mounted wireless receiving circuit, where the vehicle-mounted wireless receiving circuit is connected to a vehicle interface, and the vehicle-mounted wireless receiving circuit includes: the device comprises an audio receiving module, a DSP module, an interface expansion module and a storage module;
the DSP module is respectively connected with the audio receiving module and the interface expansion module, and the interface expansion module is respectively connected with the storage module and the vehicle-mounted equipment;
the audio receiving module is used for receiving an audio signal input by a microphone and sending the audio signal to the DSP module;
the DSP module is used for adjusting the audio signals and sending the adjusted audio signals to the storage module for storage through the interface extension module;
the interface expansion module is used for receiving the data signals sent by the vehicle-mounted equipment and sending the data signals to the storage module for storage.
Optionally, the audio receiving module includes: a radio frequency antenna and a first receiving unit;
the first receiving unit is respectively connected with the radio frequency antenna and the DSP module;
the radio frequency antenna is used for receiving radio frequency signals and sending the radio frequency signals to the first receiving unit;
the first receiving unit is used for sending the U-section wireless microphone signals in the radio-frequency signals to the DSP module.
Optionally, the audio receiving module further includes: a second receiving unit;
the second receiving unit is respectively connected with the radio frequency antenna and the DSP module;
the radio frequency antenna is further used for sending the radio frequency signal to the second receiving unit;
and the second receiving unit is used for sending the U-section wireless microphone signal in the radio frequency signal to the DSP module.
Optionally, the DSP module is integrated with: the sound card is used for receiving and sending audio signals and the sound effect processing unit is used for carrying out sound effect adjustment on the audio signals;
the sound card is respectively connected with the audio receiving module, the interface expansion module and the sound effect processing unit.
Optionally, the storage module comprises: a memory control chip and a memory card;
the storage control chip is connected with the interface expansion module and the storage card respectively;
and the storage control chip is used for receiving the adjusted audio signal or the adjusted data signal and sending the audio signal or the adjusted data signal to the storage card for storage.
Optionally, the vehicle-mounted wireless receiving circuit further includes: an overvoltage protection module;
the overvoltage protection module is respectively connected with the vehicle interface, the DSP module, the first receiving unit and the second receiving unit;
and the overvoltage protection unit is used for disconnecting the connection between the vehicle interface and the DSP module, the first receiving unit and the second receiving unit when the power supply voltage output by the vehicle interface is in an overvoltage state.
Optionally, the vehicle-mounted wireless receiving circuit further includes: a voltage conversion module;
the voltage conversion module is respectively connected with the overvoltage protection module, the first receiving unit and the second receiving unit;
the voltage conversion module is used for converting the power supply voltage output by the voltage protection unit and outputting the converted power supply voltage to the first receiving unit and the second receiving unit.
Optionally, the DSP module is further configured to perform data communication with a vehicle controller through the vehicle interface.
In order to achieve the above object, the present invention further provides a vehicle-mounted wireless receiving effector, which includes the vehicle-mounted wireless receiving circuit.
In order to achieve the above object, the present invention further provides an automobile, which includes the vehicle-mounted wireless receiving effector; the vehicle-mounted wireless receiving effector is connected with the vehicle controller through a vehicle interface.
The invention provides a vehicle-mounted wireless receiving circuit, an effector and an automobile, wherein the vehicle-mounted wireless receiving circuit comprises: the device comprises a frequency receiving module, a DSP module, an interface expansion module and a storage module; the DSP module is respectively connected with the audio receiving module and the interface expansion module, and the interface expansion module is respectively connected with the storage module and the vehicle-mounted equipment; the audio receiving module is used for receiving an audio signal output by a wireless microphone and sending the audio signal to the DSP module; the DSP module is used for adjusting the audio signals and sending the adjusted audio signals to the storage module for storage through the interface extension module; the interface expansion module is also used for receiving the data signal sent by the vehicle-mounted equipment and sending the data signal to the storage module for storage. In the invention, the interface expansion module is arranged in the wireless receiving circuit, the interface expansion module can receive the audio signal input by the microphone and also can receive the data signal of other vehicle-mounted equipment and store the data signal by using the storage module, and the loss of the functions of other vehicle-mounted equipment can be effectively avoided under the condition of meeting the requirement of using the microphone to sing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first embodiment of a vehicle-mounted wireless receiving circuit according to the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of a vehicle-mounted wireless receiving circuit according to the present invention;
fig. 3 is a schematic circuit diagram of an overvoltage protection module in a second embodiment of the vehicular wireless receiving circuit according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
20 | |
| 30 | |
40 | |
| 50 | |
60 | |
| 101 | |
102 | Second |
| 201 | |
202 | Sound |
| 401 | Memory card | 402 | Storage control chip |
| ANT | Radio frequency antenna | R1～R2 | First to second resistors |
| C1～C2 | First to second capacitors | A1 | First comparator |
| Q1 | First switch tube | GND | Ground connection |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a first embodiment of a vehicle-mounted wireless receiving circuit according to the present invention. A first embodiment of the vehicle-mounted wireless receiving circuit of the present invention is proposed based on fig. 1.
In this embodiment, the vehicle-mounted wireless receiving circuit is connected to a vehicle interface, and the vehicle-mounted wireless receiving circuit includes: the audio receiving module 10, the DSP module 20, the interface expansion module 30 and the storage module 40;
the DSP module 20 is connected to the audio receiving module 10 and the interface extension module 30, respectively, and the interface extension module 30 is connected to the storage module 40 and the vehicle-mounted device, respectively.
It should be understood that the audio receiving module 10 is a module for an audio signal output by an occupant in the vehicle through a microphone. The microphone may be a wireless microphone, and the audio receiving module 10 may receive an audio signal output by the wireless microphone. The DSP block 20 is a block for controlling input of an audio signal and a storage-related step. The DSP block 20 may be a DSP chip of the BP1048 series. The interface extension module 30 includes a certain number of extension female interfaces and a male interface, the male interface can be connected with a vehicle interface, and the female interface can be connected with a vehicle-mounted device. The larger the number of female interfaces, the more in-vehicle devices can be connected by the interface expansion module 30. The vehicle interface may be a USB interface or a Type-C interface. When the vehicle interface is a USB interface, the interface expansion module 30 may be a USB hub. The in-vehicle device refers to a device provided inside the vehicle other than the microphone and the effector for cheering. Such as a vehicle-mounted tachograph, a vehicle-mounted stereo, etc.
In a specific implementation, the audio receiving module 10 may receive an audio signal input by an occupant in a vehicle through a wireless microphone, and send the received audio signal to the DSP module 20; when receiving the audio signal, the DSP module may adjust the audio signal, and send the adjusted audio signal to the storage module 40 through the interface extension module 30 for storage; of course, the information can also be sent to the vehicle-mounted playing device through the interface extension module 30 for playing. The interface expansion module 30 may also receive data signals sent by other vehicle-mounted devices, and send the data signals to the storage module 40 for storage.
The audio signal refers to a signal relating to a sound input by the driver or the passenger and a sound inside the vehicle. The data signal refers to a signal which is generated by other vehicle-mounted equipment during operation and needs to be stored, such as a video signal and an audio signal recorded by a driving recorder.
In the present embodiment, there is provided an in-vehicle wireless receiving circuit, including: the device comprises a frequency receiving module, a DSP module, an interface expansion module and a storage module; the DSP module is respectively connected with the audio receiving module and the interface expansion module, and the interface expansion module is respectively connected with the storage module and the vehicle-mounted equipment; the audio receiving module is used for receiving an audio signal output by a wireless microphone and sending the audio signal to the DSP module; the DSP module is used for adjusting the audio signals and sending the adjusted audio signals to the storage module for storage through the interface extension module; the interface expansion module is also used for receiving the data signal sent by the vehicle-mounted equipment and sending the data signal to the storage module for storage. The interface expansion module is arranged in the wireless receiving circuit, so that the audio signal input by the microphone can be received through the interface expansion module, the data signals of other vehicle-mounted equipment can be received, the data signals can be stored by the storage module, and the loss of the functions of other vehicle-mounted equipment can be effectively avoided under the condition that the microphone is used for singing.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a second embodiment of a vehicle-mounted wireless receiving circuit according to the present invention. A second embodiment of the vehicle-mounted wireless receiving circuit of the present invention is proposed based on the first embodiment of the vehicle-mounted wireless receiving circuit described above.
In this embodiment, the audio receiving module 10 includes: a radio frequency antenna ANT and a first receiving unit 101;
the first receiving unit 101 is connected to the rf antenna ANT and the DSP module 20, respectively.
It should be understood that the radio frequency antenna ANT may be used for receiving radio frequency signals. The radio frequency antenna ANT may receive a radio frequency signal input by the wireless microphone, and may also receive a radio frequency signal sent by another device. The first receiving unit 101 may receive an audio signal input by a wireless microphone among radio frequency signals. The first receiving unit 101 may be a UHF-band wireless receiving chip of the KT0656 series.
In a specific implementation, the radio frequency antenna ANT may receive a radio frequency signal and send the radio frequency signal to the first receiving unit 101; when receiving the radio frequency signal, the first receiving unit 101 may extract a U-segment wireless microphone signal input by a wireless microphone in the radio frequency signal and send the U-segment wireless microphone signal to the DSP module 20.
In this embodiment, the audio receiving module 10 further includes: a second receiving unit 102;
the second receiving unit 102 is connected to the rf antenna ANT and the DSP module 20, respectively.
It should be understood that a plurality of receiving units may be disposed in the wireless receiving module 10, and respectively receive the audio signals input by the different U-segment wireless microphones. For example, different passengers in the rear seats or the passenger seats can simultaneously use the U-section wireless microphone to sing, and a plurality of receiving units are needed to receive audio signals input by the different U-section wireless microphones. In specific setting, two receiving units may be set to receive audio signals input by the corresponding U-segment wireless microphones, respectively.
The second receiving unit 102 may also receive a radio frequency signal received by the radio frequency antenna ANT, and send a U-segment wireless microphone signal in the radio frequency signal to the DSP module 20.
In this embodiment, the DSP module 20 has integrated therein: a sound card 201 for receiving and transmitting audio signals and a sound effect processing unit 202 for performing sound effect adjustment on the audio signals;
the sound card 201 is connected to the audio receiving module 10, the interface expansion module 30 and the sound effect processing unit 202 respectively.
The sound effect processing unit 202 can process the audio signals input by the driver and passengers through the U-segment wireless microphone, so as to beautify the sound. The signal processing process may be a signal noise reduction, tuning, or the like process. The sound effect processing unit 202 performs the conditioning setting process, which may be related to program setting to make the DSP module 20 support the floating point algorithm.
In a specific implementation, the sound card 201 may receive the audio signal and send the audio signal to the sound effect processing unit 202; the sound effect processing unit 202 performs signal adjustment on the audio signal, and sends the adjusted audio signal to the interface expansion module 30 through the sound card 201.
In this embodiment, the storage module 40 includes: a memory control chip 401 and a memory card 402;
the memory control chip 401 is connected to the interface expansion module 30 and the memory card 402 respectively.
It should be understood that the storage module 40 needs to store data signals input by different on-board devices. In the case of many in-vehicle devices, different data signals can be stored by providing the storage control chip 401. For example, the memory control chip 401 may store data signals of different in-vehicle devices to different areas of the memory card 402, so as to realize reasonable storage of data. In a specific implementation of the memory card 202, the memory control chip is configured to receive the adjusted audio signal or the adjusted data signal, and send the audio signal or the adjusted data signal to the memory card for storage. In order to meet the data storage requirements of various vehicle-mounted devices, especially the video data of the vehicle-mounted automobile data recorder, the memory card 402 is a large-capacity memory card, for example, a 128GB memory card.
In this embodiment, the vehicle-mounted wireless receiving circuit further includes: an overvoltage protection module 50;
the overvoltage protection module 50 is connected to the vehicle interface, the DSP module 20, the first receiving unit 101, and the second receiving unit 102, respectively.
It should be understood that the DSP module 20, the first receiving unit 101, and the second receiving unit 102 in the vehicle-mounted wireless receiving circuit may be powered by the power supply voltage output by the vehicle interface. During the operation of the vehicle, the power supply voltage output by the vehicle interface may be affected by the vehicle state, and a power supply voltage with a high voltage value may be output, for example, at the starting time of the vehicle, the power supply voltage output by the vehicle interface may be accompanied by a surge, and the surge may damage the vehicle-mounted wireless receiving circuit or components inside the vehicle. The overvoltage protection unit 50 is a module for protecting the in-vehicle wireless reception circuit in a case where the power supply voltage output from the vehicle interface is in an overvoltage state or there is a voltage surge. The overvoltage protection module 50 can protect the wireless receiving circuit by reducing voltage, releasing overvoltage, and the like. The overvoltage protection module 50 may be a module consisting of an Eta7014 chip and associated peripheral components.
In this embodiment, the overvoltage protection unit 50 may disconnect the connection between the vehicle interface and the DSP module 20, the first receiving unit 101, and the second receiving unit 102 when the power voltage output by the vehicle interface is in an overvoltage state. Referring to fig. 3, another overvoltage protection module 50 in fig. 3 may specifically include a first switching tube Q1, a first comparator A1, a first resistor R1, a second resistor R2, a first capacitor C1, and a second capacitor C2. An input end of a first switch tube Q1 is connected to a vehicle interface, a first end of a first capacitor C1 and a first end of a first resistor R1, an output end of the first switch tube is connected to the DSP module 20, power ends corresponding to the first receiving unit 101 and the second receiving unit 102, and a first end of a second capacitor C2, an output end of the first switch tube Q1 is connected to an output end of the first comparator A1, a forward input end of the first comparator A1 is connected to a reference power supply, a backward input end of the first switch tube Q1 is connected to a first end of the first resistor R1 and a second end of the second resistor R2, and a second end of the first capacitor C1, a second end of the second capacitor C2, and a second end of the second resistor R2 are grounded to GND. The first switch tube Q1 may be a power tube such as a MOS tube or a triode. The voltage value of the reference power Vref is the highest voltage that can be received by the DSP module 20, the first receiving unit 101, and the second receiving unit 102.
In specific implementation, a power voltage output by a vehicle interface is input to an inverting input end of a first comparator A1 through a first resistor R1, the power voltage is compared with a voltage value of a reference power supply Vref in the first comparator A1, when the voltage value of the power voltage is smaller than the voltage value of the reference power supply Vref, the first comparator A1 outputs a high level signal to control the first switch tube Q1 to be turned on, and certainly, when the high level signal output by an output end of the first comparator A1 cannot drive the first switch tube Q1, a boost circuit or a gate electrode driving chip may be further disposed between the output end of the first comparator A1 and a control end of the first switch tube Q1. When the voltage value of the power voltage is greater than or equal to the voltage value of the reference power Vref, the first comparator A1 outputs a low level signal to control the first switching tube Q1 to be turned off, and when the first switching tube Q1 is turned off, the power voltage output by the vehicle interface cannot supply power to the DSP module 20, the first receiving unit 101, and the second receiving unit 102 through the first switching tube Q1.
In this embodiment, the vehicle-mounted wireless receiving circuit further includes: a voltage conversion module 60;
the voltage conversion module 60 is connected to the overvoltage protection module 50, the first receiving unit 101, and the second receiving unit 102, respectively.
It is to be understood that during power supply through the vehicle interface, the vehicle interface output power supply voltage may not satisfy the voltage required by the first receiving unit 101 and the second receiving unit 102. For example, the power supply voltage output by the vehicle interface is 5V voltage, and the 5V voltage can directly supply power to the DSP module 20, whereas the first receiving unit 101 and the second receiving unit 102 only need 3.3V voltage. Therefore, in the implementation process, the voltage conversion unit 60 is further required to be arranged to convert the power supply voltage output by the vehicle interface into the voltages required by the first receiving unit 101 and the second receiving unit 102. Of course, the voltage conversion module 60 may also be provided between the DSP module 20 and the vehicle interface when the voltage required by the DSP module 20 is different from the supply voltage.
In a specific implementation, the voltage conversion module 60 may convert the power voltage output by the voltage protection unit, and output the converted power voltage to the first receiving unit 101 and the second receiving unit 102, so as to provide the first receiving unit 101 and the second receiving unit 102 with required voltages.
In the present embodiment, since the DSP module 20 can be connected to the vehicle controller through the vehicle interface, the DSP module 20 can also perform data communication with the vehicle controller through the vehicle interface, for example. When the vehicle interface is the Type-C interface, can directly carry out data communication through this interface and vehicle controller by the DSP module.
In addition, in order to achieve the above object, the present invention further provides a vehicle-mounted wireless receiving effector, which includes the above vehicle-mounted wireless receiving circuit, and the vehicle-mounted wireless receiving circuit may be integrated in the wireless receiving effector. Since the vehicle-mounted wireless receiving effector includes the vehicle-mounted wireless receiving circuit, in this embodiment, the structure of the vehicle-mounted wireless receiving effector may refer to the vehicle-mounted wireless receiving circuit, which is not described herein again.
In addition, in order to achieve the purpose, the invention also provides an automobile, wherein the vehicle-mounted wireless receiving effector is arranged in the automobile and is connected with the vehicle controller through a vehicle interface.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An on-vehicle wireless receiving circuit, characterized in that, on-vehicle wireless receiving circuit with vehicle interface connection, on-vehicle wireless receiving circuit includes: the device comprises an audio receiving module, a DSP module, an interface expansion module and a storage module;
the DSP module is respectively connected with the audio receiving module and the interface expansion module, and the interface expansion module is respectively connected with the storage module and the vehicle-mounted equipment;
the audio receiving module is used for receiving an audio signal input by a microphone and sending the audio signal to the DSP module;
the DSP module is used for adjusting the audio signals and sending the adjusted audio signals to the storage module for storage through the interface extension module;
the interface expansion module is used for receiving the data signals sent by the vehicle-mounted equipment and sending the data signals to the storage module for storage.
2. The in-vehicle wireless receiving circuit according to claim 1, wherein the audio receiving module includes: a radio frequency antenna and a first receiving unit;
the first receiving unit is respectively connected with the radio frequency antenna and the DSP module;
the radio frequency antenna is used for receiving radio frequency signals and sending the radio frequency signals to the first receiving unit;
the first receiving unit is used for sending U-section wireless microphone signals in the radio frequency signals to the DSP module.
3. The in-vehicle wireless receiving circuit according to claim 2, wherein the audio receiving module further comprises: a second receiving unit;
the second receiving unit is respectively connected with the radio frequency antenna and the DSP module;
the radio frequency antenna is further used for sending the radio frequency signal to the second receiving unit;
and the second receiving unit is used for sending the U-section wireless microphone signal in the radio frequency signal to the DSP module.
4. The vehicular wireless receiving circuit according to claim 3, wherein the DSP module has integrated therein: the device comprises a sound card for receiving and sending audio signals and a sound effect processing unit for carrying out sound effect adjustment on the audio signals;
the sound card is respectively connected with the audio receiving module, the interface expansion module and the sound effect processing unit.
5. The in-vehicle wireless receiving circuit according to claim 4, wherein the storage module includes: a storage control chip and a storage card;
the storage control chip is connected with the interface expansion module and the storage card respectively;
and the storage control chip is used for receiving the adjusted audio signal or the adjusted data signal and sending the audio signal or the adjusted data signal to the storage card for storage.
6. The vehicle mounted wireless receiving circuit according to claim 5, wherein the vehicle mounted wireless receiving circuit further comprises: an overvoltage protection module;
the overvoltage protection module is respectively connected with the vehicle interface, the DSP module, the first receiving unit and the second receiving unit;
and the overvoltage protection unit is used for disconnecting the connection between the vehicle interface and the DSP module, the first receiving unit and the second receiving unit when the power supply voltage output by the vehicle interface is in an overvoltage state.
7. The in-vehicle wireless receiving circuit according to claim 6, wherein the in-vehicle wireless receiving circuit further comprises: a voltage conversion module;
the voltage conversion module is respectively connected with the overvoltage protection module, the first receiving unit and the second receiving unit;
the voltage conversion module is used for converting the power supply voltage output by the voltage protection unit and outputting the converted power supply voltage to the first receiving unit and the second receiving unit.
8. The vehicular wireless receiving circuit according to claim 1, wherein the DSP module is further configured to communicate data with a vehicle controller via the vehicle interface.
9. An on-vehicle wireless receiving effector, characterized in that, the on-vehicle wireless receiving effector comprises the on-vehicle wireless receiving circuit of any one of claims 1-8.
10. An automobile, characterized in that the automobile comprises the on-board wireless reception effector of claim 9; the vehicle-mounted wireless receiving effector is connected with the vehicle controller through a vehicle interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210576447.8A CN115173873A (en) | 2022-05-25 | 2022-05-25 | Vehicle-mounted wireless receiving circuit, effector and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210576447.8A CN115173873A (en) | 2022-05-25 | 2022-05-25 | Vehicle-mounted wireless receiving circuit, effector and automobile |
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| CN202210576447.8A Pending CN115173873A (en) | 2022-05-25 | 2022-05-25 | Vehicle-mounted wireless receiving circuit, effector and automobile |
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| CN106327614A (en) * | 2016-08-30 | 2017-01-11 | 成都兆益科技发展有限责任公司 | Printing integrated multifunctional traveling data recorder |
| CN210075216U (en) * | 2019-09-11 | 2020-02-14 | 菁音电子科技（上海）有限公司 | Signal transmitting/receiving device and vehicle-mounted audio system |
| CN211787073U (en) * | 2020-02-21 | 2020-10-27 | 联想(北京)有限公司 | Electronic device |
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