CN115331665A - Driving interaction method and device for vehicle and vehicle - Google Patents

Abstract

The invention provides a vehicle driving interaction method, which solves the problem of unclear driving verification information. When a mode start command is obtained, the vehicle is controlled to enter a preset voice mode; in the preset voice mode, the driver is collected the prompt demand voice; output the prompt demand voice to the outside of the vehicle.

Description

Vehicle driving interaction method, device and vehicle

technical field

The invention relates to the field of intelligent voice, in particular to a vehicle driving interaction method, device and vehicle.

Background technique

In the process of driving an existing car, the driver generally interacts with other drivers outside the car through the lights and horns, and the information prompts are not clear enough. The warning is used to achieve the purpose of interaction, and other drivers cannot immediately understand it, resulting in certain accidents that cannot be avoided.

Contents of the invention

The purpose of the present invention is to improve the clarity of the driving verification information because the current driving interaction information has the defect of unclear information.

In order to achieve the above object, the present invention provides a vehicle driving interaction method, which solves the problem of unclear driving verification information.

Preferably, when the mode start instruction is obtained, the vehicle is controlled to enter a preset voice mode; in the preset voice mode, the driver's prompting demand voice is collected; and the prompting demand voice is output to the outside of the vehicle.

Preferably, before the step of obtaining the mode start instruction, it also includes:

When the pressing signal of the preset key switch is obtained, the mode start command is generated; or, when the touch signal of the preset touch switch is obtained, the mode start command is generated; or, the driver output is collected When the voice information is activated in the interactive mode, the mode activation instruction is generated.

Preferably, after the step of collecting the driver's prompt demand voice, it also includes: converting the prompt demand voice into an analog audio signal; converting the analog audio signal into a digital audio signal; The digital audio signal is subjected to noise reduction processing; and the digital audio signal after the noise reduction processing is subjected to amplification processing.

Preferably, after the step of outputting the prompting demand voice to the outside of the vehicle, it further includes: collecting at least one feedback voice corresponding to the prompting demand voice; analyzing and processing the at least one feedback voice to obtain the target feedback voice ; Output the target feedback voice to the interior of the vehicle.

Preferably, the step of analyzing and processing the at least one piece of feedback speech to obtain the target feedback speech further includes: performing noise reduction processing on each piece of feedback speech through a preset dual-channel noise reduction strategy; obtaining the noise reduction processed The sound parameter information of each piece of feedback voice to obtain a plurality of sound parameter information; compare the multiple sound parameter information to obtain the best sound parameter information, and determine that the feedback voice corresponding to the best sound parameter information is the Target feedback voice.

Preferably, the sound parameter information includes sound quality and sound intensity, and the optimal sound parameter information is the best sound quality and/or the best sound intensity.

Preferably, a driving interaction device for a vehicle, which includes a collection module: used to control the vehicle to enter a preset voice mode when a mode start command is obtained; a microphone module: used to collect The driver's prompt demand voice; transmission module: output the prompt demand voice to the outside of the vehicle.

Preferably, the acquisition module further includes: generating the mode start instruction when the press signal of the preset key switch is obtained; or generating the mode start instruction when the touch signal of the preset touch switch is obtained; Or, when the interactive mode activation voice information output by the driver is collected, the mode activation instruction is generated.

Preferably, the microphone module further includes: converting the prompt demand voice into an analog audio signal; converting the analog audio signal into a digital audio signal; performing noise reduction processing on the digital audio signal through a preset dual-channel noise reduction strategy ; Amplify the digital audio signal after noise reduction processing.

A car, which includes the vehicle driving interaction device.

Description of drawings

Fig. 1 is a flow chart of an embodiment of a driving interaction method for a vehicle according to the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention , and are not intended to limit the present invention.

The invention provides a driving interaction method for a vehicle, which involves the collection of human voices inside the vehicle and output outside the vehicle, and the collection of human voices outside the vehicle and input into the vehicle, so as to realize the voice communication between the bright vehicle and the driver within a certain range, and provide sufficient information. interaction, thereby avoiding vehicle accidents. It mainly involves human voice collection technology inside and outside the car, dual-channel noise reduction processing technology, and sound source positioning technology outside the car.

The present invention will take two cars as an example to explain and illustrate the specification, defined here as vehicle A and vehicle B, wherein the external voice interaction between vehicle A and vehicle B can be applied in many scenarios.

Scenario 1: On the highway or in daily life, when there are too many vehicles on the road and it is impossible to change lanes in real time, no vehicle is willing to give way to normal traffic when turning for a long time. The driving interaction method of the vehicle. When the vehicle A is waiting to change lanes and cannot change lanes due to such application scenarios during driving, the driving interaction is turned on and real-time voice transmission is carried out so that the vehicle B or the road must be able to receive the signal. The vehicles within the range receive the request voice information sent by the driver of vehicle A, and the driver of vehicle B can also transmit the driving intention or real-time road conditions and other information to vehicle A through this method after receiving the voice information.

Scenario 2: When a vehicle breaks down and asks for support or informs nearby vehicles in time to turn on double flashes and there are still vehicles not paying attention, or no vehicles give way, or when support is needed and there is no signal or time to call for help, vehicle A can send a request and then vehicle B After receiving the signal, give way in real time, or when there are other needs, vehicle B can make a corresponding driving response after receiving the signal from vehicle A, and can communicate in real time about the driving status of vehicle A and whether it needs help to seek rescue, etc. comminicate.

In an embodiment: when the mode activation instruction is obtained, the vehicle is controlled to enter the preset voice mode; in the preset voice mode, the driver's prompt demand voice is collected; and the prompt demand voice is output to the outside of the vehicle.

Specifically, in the case of vehicle A driving, the vehicle will enter the voice mode only after the driver provides voice mode instructions and confirms that the voice interaction mode is to be turned on. Only after the vehicle enters the voice mode can there be the prerequisite for driving interaction , the vehicle will enter the preset voice mode, and at the same time collect the voice demand of the driver of vehicle A, and output the voice demand to the outside of the vehicle.

In an embodiment, before the step of obtaining the mode start instruction, it further includes: when the press signal of the preset key switch is obtained, generating the mode start instruction; or, obtaining the touch of the preset touch switch signal, the mode start instruction is generated; or, when the interactive mode start voice information output by the driver is collected, the mode start instruction is generated.

Specifically, the driver starts the command through the mode, wherein the mode start command can be a key switch, a touch switch, or a vehicle-mounted intelligent voice switch, so when the vehicle A or B obtains the pressing signal of the preset key switch, it can obtain the preset key switch. When the touch signal of the touch switch is touched, when the interactive mode start voice information output by the driver is collected, in this case, a mode start instruction will be generated to start the voice interaction mode outside the vehicle.

In one embodiment, after the step of collecting the driver's prompting demand voice, it further includes: converting the prompting demand voice into an analog audio signal; converting the analog audio signal into a digital audio signal; The noise strategy performs noise reduction processing on the digital audio signal; performs amplification processing on the digital audio signal after the noise reduction processing.

Specifically, the in-vehicle analog microphone 1 and the in-vehicle analog microphone 2 collect human voices in the car in real time, convert them into analog audio signals, and output them to the multimedia host. In the multimedia host, it is converted into a digital audio signal through an analog-to-digital conversion circuit, and the redundant noise signal is removed through a dual-channel noise reduction algorithm. The first recording channel of the multimedia system is recorded in real time and cached in the memory. Bidirectional digital bus, originally used to solve the audio distribution challenges in automotive applications. Existing car audio networks generally use multiple point-to-point analog connections. A2B technology can solve many problems related to point-to-point analog connections) Audio bus output to power amplifier to amplify the signal, drive The front and rear speakers outside the car output the driver's voice. At the same time, the left digital microphone outside the car, the right digital microphone outside the car, and the rear digital microphone outside the car also collect the sound outside the car in real time, convert it into a digital audio signal through the analog-to-digital conversion circuit inside the digital microphone, and then transmit it serially to the A2B audio bus on, transmit to the A2B main chip in the multimedia host, and output the TDM time division multiplexing mode signal to the multimedia system layer.

In one embodiment, after the step of outputting the prompting demand voice to the outside of the vehicle, it further includes:

Collecting at least one feedback voice corresponding to the prompt demand voice; analyzing and processing the at least one feedback voice to obtain a target feedback voice; outputting the target feedback voice into the vehicle.

Specifically, for the voice prompt information of vehicle A, the second recording channel of the multimedia system records the microphones outside the vehicle in real time, such as extracting the audio signal of the left microphone channel outside the vehicle and the audio signal of the left microphone channel outside the vehicle, or extracting the audio signals of the right and left microphones outside the vehicle respectively. The audio signal of the microphone channel and the audio signal of the microphone channel outside the car are respectively extracted from the audio signal of the rear microphone channel outside the car and the audio signal of the microphone channel outside the car, and the redundant noise signal is removed by a dual-channel noise reduction processing algorithm to obtain the noise-reduced For the left audio signal outside the car, the noise-reduced right audio signal outside the car and the rear audio signal outside the car are obtained in the same way.

In an embodiment, the step of analyzing and processing the at least one piece of feedback speech to obtain the target feedback speech further includes: performing noise reduction processing on each piece of feedback speech through a preset dual-channel noise reduction strategy; obtaining noise reduction The processed sound parameter information of each piece of feedback speech to obtain a plurality of sound parameter information; comparing the plurality of sound parameter information to obtain the best sound parameter information, and determining the feedback speech corresponding to the best sound parameter information Speech feedback for the target. The sound parameter information includes sound quality and sound intensity, and the optimal sound parameter information is the best sound quality and/or the best sound intensity.

Specifically, intelligently compare the left audio signal outside the car, the right audio signal outside the car, and the rear audio signal outside the car through the sound source positioning algorithm outside the car, and finally output the audio signal with the best sound parameters outside the left and right rear outside the car. The sound parameter information includes sound quality and sound Intensity, the best sound parameter information is the best sound quality and/or the best sound intensity. After the DSP in the multimedia host performs sound effect processing, it is output to the power amplifier through the A2B audio bus to drive the speakers in the car to restore the human voice signal outside the car. So far, the back-and-forth interaction has realized the voice interaction between multiple vehicles.

All the driving interactions that A vehicle can do can be fed back in the same way as A vehicle after B vehicle receives the signal or voice information of A vehicle. Both A vehicle and B vehicle can interact under the same circumstances. At the same time, the normal vehicle warning lights also need to be operated normally, such as turn signals, flashing lights, and necessary horns. The above-mentioned vehicles are not limited to vehicles A and B, but any vehicle that turns on this function can be activated. Interact with vehicles that have turned on this voice interaction mode within a certain range nearby, and all can interact. Claim 1 only shows that from vehicle A to vehicle B, and the B-car association can also interact in the same way.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A driving interaction method of a vehicle, characterized in that it comprises: When the mode start command is obtained, the vehicle is controlled to enter the preset voice mode; In the preset voice mode, collect the driver's prompt demand voice; Outputting the prompt demand voice to the outside of the vehicle. 2. The driving interaction method according to claim 1, characterized in that: before the step of acquiring the mode start command, further comprising: When the pressing signal of the preset key switch is obtained, the mode start instruction is generated; or, When the touch signal of the preset touch switch is obtained, the mode start instruction is generated; or, When the interactive mode activation voice information output by the driver is collected, the mode activation instruction is generated. 3. according to the described driving interaction method of claim 1, it is characterized in that: after the step of the prompt demand voice of described collection driver, also comprise: Converting the prompt demand voice into an analog audio signal; converting the analog audio signal to a digital audio signal; performing noise reduction processing on the digital audio signal through a preset dual-channel noise reduction strategy; The digital audio signal after noise reduction processing is amplified. 4. The driving interaction method according to claim 1, characterized in that: after the step of outputting the prompting demand voice to the outside of the vehicle, further comprising: collecting at least one piece of feedback voice corresponding to the prompt demand voice; Analyzing and processing the at least one feedback voice to obtain a target feedback voice; Outputting the target feedback voice to the inside of the vehicle. 5. The driving interaction method according to claim 4, characterized in that: the step of analyzing and processing the at least one feedback voice to obtain the target feedback voice also includes: Noise reduction processing for each feedback voice through the preset dual-channel noise reduction strategy; Obtain the sound parameter information of each piece of feedback speech after the noise reduction processing, so as to obtain multiple sound parameter information; Comparing the pieces of sound parameter information to obtain the best sound parameter information, and determining the feedback voice corresponding to the best sound parameter information as the target feedback voice. 6. The driving interaction method according to claim 5, wherein the sound parameter information includes sound quality and sound intensity, and the optimal sound parameter information is the best sound quality and/or the best sound intensity. 7. A driving interaction device for a vehicle, characterized in that it comprises: Acquisition module: used to control the vehicle to enter the preset voice mode when the mode start command is obtained; Microphone module: used to collect the driver's prompt demand voice in the preset voice mode; Transmission module: output the voice prompting demand to the outside of the vehicle. 8. The driving interaction device according to claim 7, wherein the acquisition module further comprises: When the pressing signal of the preset key switch is obtained, the mode start instruction is generated; or, When the touch signal of the preset touch switch is obtained, the mode start instruction is generated; or, When the interactive mode activation voice information output by the driver is collected, the mode activation instruction is generated. 9. The driving interaction device according to claim 8, wherein the microphone module further comprises: Converting the prompt demand voice into an analog audio signal; converting the analog audio signal to a digital audio signal; performing noise reduction processing on the digital audio signal through a preset dual-channel noise reduction strategy; The digital audio signal after noise reduction processing is amplified. 10. An automobile, characterized in that it comprises the vehicle driving interaction device according to claims 7-9.

Images