A multifunctional integrated system applied to a vehicle-mounted terminal

Abstract

The application relates to the technical field of vehicle-mounted control, in particular to a multifunctional integrated system applied to a vehicle-mounted terminal. The multifunctional integrated system comprises a microphone, which is used for collecting audio data in a vehicle in real time and generating an analog signal according to the audio data; an audio coding and decoding module, which is provided with an audio coding and decoding chip and is used for receiving the analog signal, processing the analog signal and sending the processed analog signal to a communication module; and an SOC master control module, which is used for receiving the analog signal, performing ADC analog processing on the analog signal, converting the analog signal into a digital signal, processing the digital signal, saving audio data corresponding to the digital signal and generating a local recording. The original functions realized by multiple systems are integrated by a single terminal device, the investment in hardware devices is greatly reduced, meanwhile, different demand audio signals can be processed by corresponding systems, and the user experience is improved.

Description

A multi-functional integrated system for vehicle terminals Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a multifunctional integrated system for use in vehicle terminals. Background Technology

[0002] With the increasing prevalence of vehicles, they have become increasingly important in people's lives. People need them for travel, rest, and leisure, meaning that vehicles are spending more and more time with them. Furthermore, with technological advancements, wireless networks have become increasingly widespread and deeply integrated into people's lives. Therefore, people now use wireless networks for data transmission to obtain information and perform related operations.

[0003] However, in the existing technology, the functions of in-vehicle equipment are limited, and they can only perform corresponding functions. This leads to the need to install multiple in-vehicle devices, resulting in frequent installations, high costs, inconvenience in use, and a large amount of space occupied in the vehicle, which is detrimental to the user experience. Therefore, how to provide a multi-functional integrated system for in-vehicle terminals is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-functional integrated system for vehicle terminals. This invention integrates the functions that were originally implemented by multiple systems into a single terminal device, which greatly reduces the investment in hardware equipment, while ensuring that different audio signals with different needs are processed by corresponding systems, thereby improving the user experience.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multi-functional integrated system for vehicle-mounted terminals includes:

[0007] A microphone, used to collect audio data inside the vehicle in real time and generate analog signals based on the audio data;

[0008] An audio codec module is provided, which includes an audio codec chip. The audio codec chip is used to receive the analog signal, process the analog signal, and send the processed analog signal to the communication module.

[0009] The SOC main control module is used to receive the analog signal, perform ADC analog processing on the analog signal to convert the analog signal into a digital signal, process the digital signal, save the audio data corresponding to the digital signal, and generate a local recording.

[0010] In some embodiments of this application, it also includes:

[0011] An audio-video bridging module is provided, wherein an audio-video bridging chip is provided within the audio-video bridging module. The audio-video bridging chip is used to receive the analog signal, perform ADC analog processing on the analog signal, and send the audio data corresponding to the processed analog signal to the SOC main control module.

[0012] The SOC main control module is also used to perform file merging processing on the audio data corresponding to the processed analog signal.

[0013] In some embodiments of this application, the audio codec module is further provided with a PCM interface, and the audio codec chip is further used to send the processed analog signal to the communication module through the PCM interface.

[0014] In some embodiments of this application, the analog signal includes an audio frequency level N;

[0015] The SOC main control module has a preset audio frequency level matrix T0 and a preset output frequency band matrix A. For the preset output frequency band matrix A, A(A1, A2, A3, A4) is set, where A1 is the first preset output frequency band, A2 is the second preset output frequency band, A3 is the third preset output frequency band, and A4 is the fourth preset output frequency band, and 50Hz < A1 < A2 < A3 < A4 < 2500Hz; for the preset audio frequency level matrix T0, T0(T01, T02, T03, T04) is set, where T01 is the first preset audio frequency level, T02 is the second preset audio frequency level, T03 is the third preset audio frequency level, and T04 is the fourth preset audio frequency level, and T01 < T02 < T03 < T04;

[0016] The SOC main control module is also used to select the corresponding output frequency band as the audio frequency band for outputting and playing sound based on the relationship between N and the preset audio frequency level matrix T0.

[0017] When N < T01, the first preset output frequency band A1 is selected as the audio frequency band for outputting and playing sound;

[0018] When T01≤N<T02, the second preset output frequency band A2 is selected as the audio frequency band for outputting and playing sound;

[0019] When T02≤N<T03, the third preset output frequency band A3 is selected as the audio frequency band for outputting and playing sound;

[0020] When T03≤N<T04, the fourth preset output frequency band A4 is selected as the audio frequency band for outputting and playing sound.

[0021] In some embodiments of this application, the communication module is used to perform voice encoding and debugging processing on the analog signal, and to transmit the voice-encoded and debugged analog signal through a radio frequency circuit to conduct audio calls through the analog signal.

[0022] In some embodiments of this application, the communication module is further configured to calculate the noise intensity K in the audio data corresponding to the analog signal;

[0023] The communication module has a preset noise intensity matrix T0 and a preset microphone volume matrix A. For the preset microphone volume matrix A, A(A1, A2, A3, A4) is set, where A1 is the first preset microphone volume, A2 is the second preset microphone volume, A3 is the third preset microphone volume, and A4 is the fourth preset microphone volume, and A1 < A2 < A3 < A4; for the preset noise intensity matrix T0, T0(T01, T02, T03, T04) is set, where T01 is the first preset noise intensity, T02 is the second preset noise intensity, T03 is the third preset noise intensity, and T04 is the fourth preset noise intensity, and T01 < T02 < T03 < T04;

[0024] The communication module is also used to select the corresponding microphone volume as the acquisition volume when the microphone acquires the audio data based on the relationship between K and the preset noise intensity matrix T0.

[0025] When K < T01, the first preset microphone volume A1 is selected as the acquisition volume when the microphone acquires the audio data;

[0026] When T01≤K<T02, the second preset microphone volume A2 is selected as the acquisition volume when the microphone acquires the audio data;

[0027] When T02≤K<T03, the third preset microphone volume A3 is selected as the acquisition volume when the microphone acquires the audio data;

[0028] When T03≤K<T04, the fourth preset microphone volume A4 is selected as the acquisition volume when the microphone acquires the audio data.

[0029] In some embodiments of this application, the analog signal further includes a voice signal;

[0030] The communication module is also used to demodulate the received voice signal and send it to the audio decoding chip via a PCM signal;

[0031] The audio decoding chip is equipped with a DAC circuit. The audio decoding chip is also used to receive the voice signal and decode it. The DAC circuit converts the digital signal into a decoded analog signal and sends it to an analog switch, an audio amplifier, and a speaker to play the voice signal.

[0032] In some embodiments of this application, the analog signal further includes a video signal;

[0033] The audio / video bridging chip is also used to timestamp the video signal after performing the ADC analog processing, and send the processed video signal to the SOC main control module for file merging processing.

[0034] In some embodiments of this application, it also includes:

[0035] A storage module, wherein an EMMC storage chip is provided inside the storage module, and the storage module is connected to the SOC main control module;

[0036] The SOC main control module is also equipped with an SDIO high-speed interface, and the SOC main control module is also used to save the audio data corresponding to the analog signal after file merging and processing to the EMMC storage chip through the SDIO high-speed interface.

[0037] In some embodiments of this application, the communication module is used to receive 2G, 3G and 4G signals.

[0038] This invention provides a multi-functional integrated system for vehicle-mounted terminals, which has the following advantages compared with the prior art:

[0039] This invention integrates functions that were originally implemented by multiple systems into a single terminal device through a time-division multiplexing mechanism, which greatly reduces the investment in hardware equipment, while ensuring that different audio signals with different needs are processed by corresponding systems, and audio parameters can be configured according to the corresponding application scenarios. Attached Figure Description

[0040] Figure 1 is a functional block diagram of the multi-functional integrated system of the vehicle terminal in an embodiment of the present invention. Detailed Implementation

[0041] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0042] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the communication between the inner sides of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] In the existing technology, vehicle-mounted equipment has a single function and can only perform the corresponding functions. This leads to the need to install multiple vehicle-mounted devices, which requires multiple installations, is costly, is inconvenient to use, occupies a lot of interior space, and has problems such as negatively impacting the user experience.

[0046] Therefore, the present invention provides a multi-functional integrated system for vehicle terminals. By integrating the functions that were originally implemented by multiple systems into a single terminal device, the investment in hardware equipment is greatly reduced, while ensuring that different audio signals with different needs are processed by corresponding systems, thereby improving the user experience.

[0047] Referring to Figure 1, the disclosed embodiment of the present invention provides a multi-functional integrated system for an in-vehicle terminal, comprising:

[0048] The microphone is used to collect audio data inside the vehicle in real time and generate analog signals based on the audio data;

[0049] The audio codec module contains an audio codec chip, which receives analog signals, processes them, and sends the processed analog signals to the communication module.

[0050] The SOC main control module is used to receive analog signals, perform ADC analog processing on the analog signals to convert them into digital signals, process the digital signals, save the corresponding audio data, and generate local recordings.

[0051] In one specific embodiment of this application, it further includes:

[0052] The audio and video bridging module contains an audio and video bridging chip. The audio and video bridging chip is used to receive analog signals, perform ADC analog processing on the analog signals, and send the audio data corresponding to the processed analog signals to the SOC main control module.

[0053] The SOC main control module is also used to merge files of the audio data corresponding to the processed analog signal.

[0054] In one specific embodiment of this application, the audio codec module is further provided with a PCM interface, and the audio codec chip is also used to send the processed analog signal to the communication module through the PCM interface.

[0055] In one specific embodiment of this application, the analog signal includes an audio frequency level N;

[0056] The SOC main control module has a preset audio frequency level matrix T0 and a preset output frequency band matrix A. For the preset output frequency band matrix A, A(A1, A2, A3, A4) is set, where A1 is the first preset output frequency band, A2 is the second preset output frequency band, A3 is the third preset output frequency band, and A4 is the fourth preset output frequency band, and 50Hz < A1 < A2 < A3 < A4 < 2500Hz; For the preset audio frequency level matrix T0, T0(T01, T02, T03, T04) is set, where T01 is the first preset audio frequency level, T02 is the second preset audio frequency level, T03 is the third preset audio frequency level, and T04 is the fourth preset audio frequency level, and T01 < T02 < T03 < T04;

[0057] The SOC main control module is also used to select the corresponding output frequency band as the audio frequency band for output playback sound based on the relationship between N and the preset audio frequency level matrix T0.

[0058] When N < T01, the first preset output frequency band A1 is selected as the audio frequency band for outputting and playing sound;

[0059] When T01≤N<T02, the second preset output frequency band A2 is selected as the audio frequency band for output playback sound;

[0060] When T02≤N<T03, the third preset output frequency band A3 is selected as the audio frequency band for output playback sound;

[0061] When T03≤N<T04, the fourth preset output frequency band A4 is selected as the audio frequency band for output playback sound.

[0062] In one specific embodiment of this application, the communication module is used to perform voice encoding and debugging processing on the analog signal, and to transmit the voice-encoded and debugged analog signal through a radio frequency circuit so as to conduct audio calls through the analog signal.

[0063] In one specific embodiment of this application, the communication module is further used to calculate the noise intensity K in the audio data corresponding to the analog signal;

[0064] The communication module has a preset noise intensity matrix T0 and a preset microphone volume matrix A. For the preset microphone volume matrix A, A(A1, A2, A3, A4) is set, where A1 is the first preset microphone volume, A2 is the second preset microphone volume, A3 is the third preset microphone volume, and A4 is the fourth preset microphone volume, and A1 < A2 < A3 < A4; for the preset noise intensity matrix T0, T0(T01, T02, T03, T04) is set, where T01 is the first preset noise intensity, T02 is the second preset noise intensity, T03 is the third preset noise intensity, and T04 is the fourth preset noise intensity, and T01 < T02 < T03 < T04;

[0065] The communication module is also used to select the corresponding microphone volume as the acquisition volume when the microphone acquires audio data based on the relationship between K and the preset noise intensity matrix T0.

[0066] When K < T01, the first preset microphone volume A1 is selected as the acquisition volume when the microphone acquires audio data.

[0067] When T01≤K<T02, select the second preset microphone volume A2 as the acquisition volume when the microphone acquires audio data;

[0068] When T02≤K<T03, select the third preset microphone volume A3 as the acquisition volume when the microphone acquires audio data;

[0069] When T03≤K<T04, select the fourth preset microphone volume A4 as the acquisition volume when the microphone acquires audio data.

[0070] In one specific embodiment of this application, the analog signal further includes a voice signal;

[0071] The communication module is also used to demodulate the received voice signal and send it to the audio decoding chip via PCM signal;

[0072] The audio decoding chip is equipped with a DAC circuit. The audio decoding chip is also used to receive and decode voice signals. The DAC circuit converts the digital signals into decoded analog signals and sends them to the analog switch, audio amplifier and speaker to play the voice signals.

[0073] In one specific embodiment of this application, the analog signal further includes a video signal;

[0074] The audio / video bridging chip is also used to timestamp the video signal after ADC analog processing, and then send the processed video signal to the SOC main control module for file merging processing.

[0075] In one specific embodiment of this application, it further includes:

[0076] The storage module contains an eMMC storage chip and is connected to the SOC main control module.

[0077] The SOC main control module is also equipped with an SDIO high-speed interface, which is used to save the audio data corresponding to the analog signal after file merging and processing to the EMMC storage chip via the SDIO high-speed interface.

[0078] In one specific embodiment of this application, the communication module is used to receive 2G, 3G and 4G signals.

[0079] In summary, the microphone of this invention captures audio and sends it to an audio encoding chip via an analog signal. After processing, the signal is forwarded to the communication module via a PCM interface. The communication module then encodes and debugs the audio before transmitting it through an RF circuit to achieve audio call functionality. Simultaneously, the voice signal received by the communication module is demodulated and then sent to an audio decoding chip via a PCM signal for decoding. A DAC circuit then converts the digital signal to an analog signal before sending it to the backend switch, amplifier, and speaker for voice playback. This invention offers advantages such as high integration and applicability to various in-vehicle environments, significantly improving the user experience for car owners.

[0080] The above is only one embodiment of the present invention, but it cannot be used to limit the scope of the present invention. Any structural changes made based on the present invention, as long as they do not lose the essence of the present invention, should be considered to fall within the protection scope of the present invention and be subject to its restrictions.

[0081] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process and related descriptions of the system described above can be found in the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0082] It should be noted that the system provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be further decomposed or combined. For example, the modules in the above embodiments can be merged into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the various modules or steps and are not considered as an improper limitation of the present invention.

[0083] Those skilled in the art will recognize that the modules and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. The programs corresponding to the software modules and method steps can be placed in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the art. To clearly illustrate the interchangeability of electronic hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the invention.

[0084] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0085] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

[0086] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A multi-functional integrated system for vehicle-mounted terminals, characterized in that, include: A microphone, used to collect audio data inside the vehicle in real time and generate analog signals based on the audio data; An audio codec module is provided, which includes an audio codec chip. The audio codec chip is used to receive the analog signal, process the analog signal, and send the processed analog signal to the communication module. The SOC main control module receives the analog signal, performs ADC analog processing on the analog signal to convert it into a digital signal, processes the digital signal, saves the corresponding audio data, and generates a local recording. The analog signal includes an audio frequency level N. The SOC main control module has a preset audio frequency level matrix T0 and a preset output frequency band matrix A. For the preset output frequency band matrix A, A(A1, A2, A3, A4) is set, where A1 is the first preset output frequency band, A2 is the second preset output frequency band, A3 is the third preset output frequency band, and A4 is the fourth preset output frequency band, and 50Hz < A1 < A2 < A3 < A4 < 2500Hz. For the preset audio frequency level matrix T0, T0(T01, T02, T03, T04) is set. 04), where T01 is the first preset audio frequency level, T02 is the second preset audio frequency level, T03 is the third preset audio frequency level, and T04 is the fourth preset audio frequency level, and T01 < T02 < T03 < T04; the SOC main control module is also used to select the corresponding output frequency band as the audio frequency band for output playback sound according to the relationship between N and the preset audio frequency level matrix T0; when N < T01, the first preset output frequency band A1 is selected as the audio frequency band for output playback sound; when T01 ≤ N < T02, the second preset output frequency band A2 is selected as the audio frequency band for output playback sound; when T02 ≤ N < T03, the third preset output frequency band A3 is selected as the audio frequency band for output playback sound; when T03 ≤ N < T04, the fourth preset output frequency band A4 is selected as the audio frequency band for output playback sound.

2. The multi-functional integrated system for vehicle-mounted terminals according to claim 1, characterized in that, Also includes: An audio / video bridging module is provided, which includes an audio / video bridging chip. The audio / video bridging chip is used to receive the analog signal, perform ADC analog processing on the analog signal, and send the audio data corresponding to the processed analog signal to the SOC main control module. The SOC main control module is also used to perform file merging processing on the audio data corresponding to the processed analog signal.

3. The multi-functional integrated system for vehicle-mounted terminals according to claim 1, characterized in that, The audio codec module is also equipped with a PCM interface, and the audio codec chip is also used to send the processed analog signal to the communication module through the PCM interface.

4. A multi-functional integrated system for vehicle-mounted terminals according to claim 1, characterized in that, The communication module is used to perform voice encoding and debugging processing on the analog signal, and to transmit the voice-encoded and debugged analog signal through a radio frequency circuit so as to conduct audio calls through the analog signal.

5. A multi-functional integrated system for vehicle-mounted terminals according to claim 4, characterized in that, The communication module is also used to calculate the noise intensity K in the audio data corresponding to the analog signal; the communication module has a preset noise intensity matrix T0 and a preset microphone volume matrix A. For the preset microphone volume matrix A, A(A1,A2,A3,A4) is set, where A1 is the first preset microphone volume, A2 is the second preset microphone volume, A3 is the third preset microphone volume, and A4 is the fourth preset microphone volume, and A1 < A2 < A3 < A4; for the preset noise intensity matrix T0, T0(T01,T02,T03,T04) is set, where T01 is the first preset noise intensity, T02 is the second preset noise intensity, T03 is the third preset noise intensity, and T04 is the fourth preset noise intensity, and T01 < T02 < T03 < T04; the communication module is also used to select the corresponding microphone volume as the acquisition volume when the microphone acquires the audio data according to the relationship between K and the preset noise intensity matrix T0; when K < T01, the first preset microphone volume A1 is selected as the acquisition volume when the microphone acquires the audio data; when T01 ≤ K < T02, the second preset microphone volume A2 is selected as the acquisition volume when the microphone acquires the audio data; when T02 ≤ K < T03, the third preset microphone volume A3 is selected as the acquisition volume when the microphone acquires the audio data; when T03 ≤ K < T04, the fourth preset microphone volume A4 is selected as the acquisition volume when the microphone acquires the audio data.

6. A multi-functional integrated system for vehicle-mounted terminals according to claim 4, characterized in that, The analog signal also includes a voice signal; the communication module is further used to demodulate the received voice signal and send it to the audio codec chip via a PCM signal; the audio codec chip is equipped with a DAC circuit, and the audio codec chip is further used to receive the voice signal and decode it, convert the digital signal into a decoded analog signal via the DAC circuit and send it to an analog switch, an audio amplifier and a speaker to play the voice signal.

7. A multi-functional integrated system for vehicle-mounted terminals according to claim 2, characterized in that, The analog signal also includes a video signal; the audio / video bridging chip is further used to timestamp the video signal after performing the ADC analog processing, and send the processed video signal to the SOC main control module for file merging processing.

8. A multi-functional integrated system for vehicle-mounted terminals according to claim 7, characterized in that, Also includes: The storage module contains an EMMC storage chip and is connected to the SOC main control module. The SOC main control module is also equipped with an SDIO high-speed interface and is used to save the audio data corresponding to the analog signal after file merging and processing to the EMMC storage chip through the SDIO high-speed interface.

9. A multi-functional integrated system for vehicle-mounted terminals according to claim 1, characterized in that, The communication module is used to receive 2G, 3G and 4G signals.

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