CN112896048A - Vehicle-mounted all-around display system and method based on mobile phone interconnection and voice recognition - Google Patents
Vehicle-mounted all-around display system and method based on mobile phone interconnection and voice recognition Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
- B60R2300/105—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using multiple cameras
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/60—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by monitoring and displaying vehicle exterior scenes from a transformed perspective
- B60R2300/607—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by monitoring and displaying vehicle exterior scenes from a transformed perspective from a bird's eye viewpoint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/804—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for lane monitoring
Abstract
The invention discloses a vehicle-mounted all-round-looking display system based on mobile phone interconnection and voice recognition, which comprises a 360-degree all-round-looking camera, a smart mobile phone end and a vehicle-mounted terminal, wherein the vehicle-mounted terminal comprises a voice collecting module, a communication module, an image collecting module, an image processing module and an image display module; the driver can control the image display module of the vehicle-mounted terminal to switch the images through voice, so that the driving safety is guaranteed while the surrounding environment of the vehicle is obtained in real time.
Description
Technical Field
The invention belongs to the field of automotive electronics, and particularly relates to a vehicle-mounted all-round-looking display system based on mobile phone interconnection and voice recognition and a vehicle-mounted all-round-looking display method based on mobile phone interconnection and voice recognition.
Background
With the rapid development of the automobile industry in China and the remarkable improvement of the living standard of residents, the automobile popularity rate is higher and higher, and the interaction experience of safe driving and people and vehicles becomes a problem which is more and more concerned by users. The 4 wide-angle cameras are arranged in the front view field range, the rear view field range, the left view field range and the right view field range of the automobile to collect multi-path videos, and then the videos are processed and synthesized into a view of 360 degrees, so that a driver can be assisted to obtain the surrounding environment of the automobile, and safe driving is realized.
Along with the change of the driving scene, a driver needs to switch different visual angles to assist driving, but needs higher concentration degree during driving, the display screen is not convenient to manually operate for switching, and the voice control instead of manual operation is a thought for solving the problems.
The speech recognition in the current vehicle-mounted environment is mainly completed through the vehicle-mounted terminal, but the functions of the existing vehicle-mounted terminal in the market are limited, the speech recognition efficiency is not high, the upgrading and updating period of the vehicle-mounted terminal is also longer, and the user requirements of continuous updating in the actual use can not be met.
Disclosure of Invention
The invention aims to provide a vehicle-mounted all-around display system based on mobile phone interconnection and voice recognition and also relates to a vehicle-mounted all-around display method based on mobile phone interconnection and voice recognition, aiming at the problems in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a vehicle-mounted all-round display system based on mobile phone interconnection and voice recognition comprises a 360-degree all-round camera, a smart phone end and a vehicle-mounted terminal,
the vehicle-mounted terminal comprises a voice collecting module, a communication module, an image collecting module, an image processing module and an image display module,
the voice collection module collects audio through a microphone and sends audio data to the communication module;
the communication module is interconnected with the smart phone end in a USB (universal serial bus) or Bluetooth or WIFI (wireless fidelity) mode, sends audio data to the smart phone end, receives a voice recognition result fed back by the smart phone end and feeds back the voice recognition result to the image display module;
the image acquisition module acquires environment images of all visual angles shot by the 360-degree all-around camera and transmits the environment images of all visual angles to the image processing module;
the image processing module is used for processing the collected environment images of all the visual angles and then sending the environment images to the image display module;
and the image display module displays the environment image processed by the image processing module according to the voice recognition result.
A vehicle-mounted all-round display method based on mobile phone interconnection and voice recognition comprises the following steps:
step S101: a user sends a voice instruction, a voice collection module of the vehicle-mounted terminal collects audio data, and the voice collection module carries out noise reduction processing on the audio data;
step S102: the voice collection module transmits the audio data subjected to noise reduction processing to the smart phone end through a communication module of the vehicle-mounted terminal;
step S103: the smart phone end receives the audio data, the audio data are identified through audio identification application software or transmitted to the cloud end to obtain a voice identification result, and the voice identification result is sent to an image display module of the vehicle-mounted terminal through a communication module of the vehicle-mounted terminal;
step S104: an image display module of the vehicle-mounted terminal receives a voice recognition result;
step S105: an image acquisition module of the vehicle-mounted terminal acquires environment images with different visual angles, which are shot by a 360-degree all-round-looking camera and transmits the environment images to an image processing module;
step S106: the image processing module analyzes, converts, merges and scales the collected environment images with different visual angles;
step S107: and the image display module of the vehicle-mounted terminal displays the environment image processed by the image processing module according to the voice recognition result.
The noise reduction processing in step S101 includes the steps of:
collecting the noise in the vehicle under the noise condition formed by different driving speeds, different window opening and closing states and different air conditioner gears,
the method comprises the steps of obtaining the current running speed, the current window opening and closing state and the current air conditioner gear, finding out the noise in the vehicle under the corresponding noise condition, and removing the noise in the vehicle from the audio data collected by the voice collection module.
The identification processing of the smart phone terminal on the audio data comprises the following steps:
step S401: the smart phone terminal analyzes and identifies the audio data through audio identification application software to obtain a first voice identification result S1, and a first confidence T1 corresponding to the first voice identification result S1 is automatically generated by the audio identification application software;
step S402: when the step S401 is performed, the smartphone end uploads the audio data to the pule qian language voice cloud platform, the pule qian language voice cloud platform analyzes and identifies the audio data, and then returns a second voice identification result S2 to the smartphone end, and a second confidence T2 corresponding to the second voice identification result S2 is automatically generated by the pule qian language voice cloud platform;
step S403: and comparing the first confidence T1 with the second confidence T2, and taking the voice recognition result with high confidence as a final voice recognition result.
The image processing module analyzes, converts, merges and scales the collected environment images with different visual angles, and comprises the following steps:
step S501: the image acquisition module acquires environment images in YUV format of different viewing angles around the vehicle in real time through a 360-degree all-round camera;
step S502: the image processing module converts the acquired environment image in the YUV format into an environment image in an RGB format;
step S503: splicing the environment images of the front vehicle, the rear vehicle, the left vehicle and the right vehicle, and combining the environment images into an environment image of 360 degrees;
step S504: further cutting, compressing and zooming the combined 360-degree environment image to enable the 360-degree environment image to adapt to the size of a display screen of the image display module;
step S505: and displaying the processed 360-degree environment image on an image display module of the vehicle-mounted terminal.
The technical scheme provided by the invention has the following beneficial effects:
firstly, the voice recognition and the smart phone terminal are combined, so that the speed of the voice recognition is increased, and the accuracy is greatly improved;
secondly, the driver can control the image display module of the vehicle-mounted terminal to switch the images through voice, so that the driving safety is guaranteed while the surrounding environment of the vehicle is obtained in real time.
Drawings
Fig. 1 is a structural diagram of a vehicle-mounted all-around display system based on mobile phone interconnection and voice recognition.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to specific examples and drawings. It should be emphasized that, although the present invention will be described in connection with examples, it is not intended to limit the invention to these examples, which are merely intended to illustrate the feasibility of the technical solution of the present invention.
The invention provides a vehicle-mounted all-round-looking display system based on mobile phone interconnection and voice recognition, which comprises a vehicle-mounted terminal, a smart phone end and a 360-degree all-round-looking camera as shown in figure 1.
The vehicle-mounted terminal collects audio data of a user through a built-in microphone, sends the audio data to the smart phone end, receives a voice recognition result returned by the smart phone end, extracts visual angle display information in the voice recognition result, and switches and displays an environment image of a corresponding visual angle according to the visual angle display information;
the smart phone end receives the audio data, identifies the audio data through application software to obtain a voice identification result, and then sends the voice identification result to the vehicle-mounted terminal;
the 360-degree all-round looking camera is respectively arranged at the front, the back, the left and the right of the vehicle and is used for acquiring the images of the surrounding environment of the vehicle in real time.
The vehicle-mounted terminal finishes interaction with the smart phone end and the 360-degree all-round-looking camera, and specifically comprises: the device comprises a voice collection module, a communication module, an image acquisition module, an image processing module and an image display module.
The voice collection module collects audio through a microphone and sends audio data to the communication module;
the communication module is interconnected with the smart phone end in a USB (universal serial bus) or Bluetooth or WIFI (wireless fidelity) mode, sends audio data to the smart phone end, receives a voice recognition result fed back by the smart phone end and feeds back the voice recognition result to the image display module;
the image acquisition module acquires environment images of all visual angles shot by the 360-degree all-around camera and transmits the environment images of all visual angles to the image processing module;
the image processing module is used for processing the collected environment images of all the visual angles and then sending the environment images to the image display module;
and the image display module, namely a display screen, displays the environment image processed by the image processing module according to the voice recognition result.
A vehicle-mounted 360-degree all-round-view display method based on mobile phone interconnection and voice recognition comprises the following specific processes:
s101: a user sends a voice instruction, a voice collection module of the vehicle-mounted terminal collects audio data, and the voice collection module carries out noise reduction processing on the audio data;
s102: because the vehicle-mounted terminal has the limitations of higher use authorization cost, non-standard matching of the vehicle-mounted terminal, lower identification algorithm version and low identification rate caused by inconvenient software upgrading, and the like in the self voice identification of the vehicle-mounted terminal, the voice collection module of the vehicle-mounted terminal transmits the audio data subjected to noise reduction processing to the smart phone end through the communication module, and the interconnection between the vehicle-mounted terminal and the smart phone end is realized;
s103: the smart phone end receives the audio data, the audio data are identified through audio identification application software or transmitted to the cloud end to obtain a voice identification result, and the voice identification result is sent to an image display module of the vehicle-mounted terminal through a communication module of the vehicle-mounted terminal;
s104: an image display module of the vehicle-mounted terminal receives the voice recognition result and switches and displays environment images with different visual angles (a front visual angle, a rear visual angle, a left visual angle and a right visual angle) according to the voice recognition result;
s105: an image acquisition module of the vehicle-mounted terminal acquires environment images with different visual angles, which are shot by a 360-degree all-round-looking camera and transmits the environment images to an image processing module;
s106: the image processing module analyzes, converts the format, combines and zooms the collected environment images with different visual angles;
s107: and the image display module of the vehicle-mounted terminal displays the real-time environment image processed by the image processing module according to the voice recognition result. And the voice recognition result specifies an environment image displaying a front visual angle, a rear visual angle, a left visual angle, a right visual angle or any combination of the four visual angles.
The voice collection module carries out noise reduction on the collected audio data and comprises the following steps:
s201: the method comprises the following steps of collecting noise in the vehicle under the noise condition consisting of different driving speeds, different window opening and closing states and different air conditioner gears, for example:
driving at the speed of 0-40 km/h in downtown, opening a window, closing an air conditioner, and collecting for 0.5-1 hour;
driving at the speed of 60-70 km/h in downtown, closing a window, opening a middle gear of an air conditioner, and collecting for 0.5-1 hour;
driving at the speed of 60-70 km/h in downtown, windowing, and collecting for 0.5-1 hour;
driving on an overhead at the speed of 60-80 km/h, windowing, and collecting for 0.5-1 hour;
driving on an overhead at the speed of 60-70 km/h, closing a window, opening an air conditioner by 5 steps, and collecting for 0.5-1 hour;
driving at the speed of 60-70 km-/h in downtown, closing a window, closing an air conditioner, and collecting for 0.5-1 hour;
driving on an overhead at the speed of 60-70 km/h, closing a window, closing an air conditioner, and collecting for 0.5-1 hour;
driving at a high speed of 100-120 km/h, closing a window, closing an air conditioner, and collecting for 0.5-1 hour;
s202: the method comprises the steps of obtaining the current running speed, the current window opening and closing state and the current air conditioner gear, finding out the noise in the vehicle under the corresponding noise condition, and removing the noise in the vehicle from the audio data collected by the voice collection module.
The interconnection of the vehicle-mounted terminal and the smart phone terminal comprises the following steps:
s301: the communication module loads and runs a vehicle-mounted end interconnection program;
s302: polling and detecting the state of USB/Bluetooth/WIFI by the vehicle-mounted end interconnection program, and updating the connection state of the smart phone end in real time;
s303: if the connection of the smart phone terminal is detected, the vehicle-mounted terminal interconnection program starts a phone terminal interconnection program through USB/Bluetooth/WIFI and sends authorization;
s304: if the mobile phone end interconnection program is successfully started, verifying authorization and completing interconnection with the vehicle-mounted end interconnection program; if the starting is unsuccessful, installing a mobile phone end interconnection program at the smart phone end and returning to the step S301;
s305: the communication module receives audio data output by the voice collection module, and the audio data are sent to a mobile phone end interconnection program through a USB/Bluetooth/WIFI by a vehicle end interconnection program;
s306: the smart phone terminal identifies the audio data obtained by the mobile phone terminal interconnection program to obtain a voice identification result,
s307: and the mobile phone end interconnection program sends the voice recognition result to the vehicle-mounted end interconnection program through USB/Bluetooth/WIFI, and then the vehicle-mounted end interconnection program is sent to the image display module through the communication module.
The identification processing flow of the smart phone end to the audio data comprises the following steps:
s401: the smart phone terminal analyzes and identifies the audio data through audio recognition application software (in this embodiment, "news fly-hear"), so as to obtain a first voice recognition result S1, and records that a corresponding first confidence coefficient is T1, and the first confidence coefficient T1 is automatically generated by the audio recognition application software;
s402: the smart phone end uploads the audio data to the Qiang Qian language voice cloud platform while the step S401 is performed, the Qian language voice cloud platform analyzes and identifies the audio data, and then returns a second voice identification result S2 to the smart phone end, the corresponding second confidence coefficient is recorded as T2, and the second confidence coefficient T2 is automatically generated by the Qian language voice cloud platform;
s403: and comparing the first confidence T1 with the second confidence T2, and taking the voice recognition result with high confidence as a final voice recognition result. If T1> T2, the first voice recognition result S1 is sent to the vehicle-mounted terminal; and if the T1 is less than the T2, sending the second voice recognition result S2 to the vehicle-mounted terminal.
The image processing module analyzes, converts the format, merges and scales the collected environment image, and comprises the following steps:
s501: the image acquisition module acquires environment images of different viewing angles around the vehicle in real time through the 360-degree all-round camera;
the image acquisition module acquires an environment image of the vehicle periphery in real time into an environment image in a YUV format through a 360-degree all-round camera;
s502: the image processing module converts the acquired environment image in the YUV format into an environment image in an RGB format;
the conversion between RGB and YUV is performed according to the following formula:
s503: splicing the environmental images of the front vehicle, the rear vehicle, the left vehicle and the right vehicle by the conventional image processing technology, and combining the environmental images into a 360-degree environmental image;
s504: further performing operations such as cutting, compressing, zooming and the like on the combined 360-degree environment image to enable the 360-degree environment image to adapt to the size of a display screen of the image display module;
s505: and displaying the processed 360-degree environment image on an image display module of the vehicle-mounted terminal.
In this document, the terms front, rear, left, right and the like are used for defining the positions of the devices in the drawings and the positions of the devices relative to each other, and are only used for expressing the clarity and convenience of the technical scheme. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A vehicle-mounted all-round display system based on mobile phone interconnection and voice recognition comprises a 360-degree all-round camera and is characterized by further comprising a smart phone end and a vehicle-mounted terminal,
the vehicle-mounted terminal comprises a voice collecting module, a communication module, an image collecting module, an image processing module and an image display module,
the voice collection module collects audio through a microphone and sends audio data to the communication module;
the communication module is interconnected with the smart phone end in a USB (universal serial bus) or Bluetooth or WIFI (wireless fidelity) mode, sends audio data to the smart phone end, receives a voice recognition result fed back by the smart phone end and feeds back the voice recognition result to the image display module;
the image acquisition module acquires environment images of all visual angles shot by the 360-degree all-around camera and transmits the environment images of all visual angles to the image processing module;
the image processing module is used for processing the collected environment images of all the visual angles and then sending the environment images to the image display module;
and the image display module displays the environment image processed by the image processing module according to the voice recognition result.
2. A vehicle-mounted all-round display method based on mobile phone interconnection and voice recognition comprises the following steps:
step S101: a user sends a voice instruction, a voice collection module of the vehicle-mounted terminal collects audio data, and the voice collection module carries out noise reduction processing on the audio data;
step S102: the voice collection module transmits the audio data subjected to noise reduction processing to the smart phone end through a communication module of the vehicle-mounted terminal;
step S103: the smart phone end receives the audio data, the audio data are identified through audio identification application software or transmitted to the cloud end to obtain a voice identification result, and the voice identification result is sent to an image display module of the vehicle-mounted terminal through a communication module of the vehicle-mounted terminal;
step S104: an image display module of the vehicle-mounted terminal receives a voice recognition result;
step S105: an image acquisition module of the vehicle-mounted terminal acquires environment images with different visual angles, which are shot by a 360-degree all-round-looking camera and transmits the environment images to an image processing module;
step S106: the image processing module analyzes, converts, merges and scales the collected environment images with different visual angles;
step S107: and the image display module of the vehicle-mounted terminal displays the environment image processed by the image processing module according to the voice recognition result.
3. The vehicle-mounted all-around display method based on the mobile phone interconnection and the voice recognition as claimed in claim 2, wherein the noise reduction processing in the step S101 comprises the following steps:
collecting the noise in the vehicle under the noise condition formed by different driving speeds, different window opening and closing states and different air conditioner gears,
the method comprises the steps of obtaining the current running speed, the current window opening and closing state and the current air conditioner gear, finding out the noise in the vehicle under the corresponding noise condition, and removing the noise in the vehicle from the audio data collected by the voice collection module.
4. The vehicle-mounted all-around display method based on the mobile phone interconnection and the voice recognition as claimed in claim 2, wherein the recognition processing of the audio data by the smart phone terminal comprises the following steps:
step S401: the smart phone terminal analyzes and identifies the audio data through audio identification application software to obtain a first voice identification result S1, and a first confidence T1 corresponding to the first voice identification result S1 is automatically generated by the audio identification application software;
step S402: when the step S401 is performed, the smartphone end uploads the audio data to the pule qian language voice cloud platform, the pule qian language voice cloud platform analyzes and identifies the audio data, and then returns a second voice identification result S2 to the smartphone end, and a second confidence T2 corresponding to the second voice identification result S2 is automatically generated by the pule qian language voice cloud platform;
step S403: and comparing the first confidence T1 with the second confidence T2, and taking the voice recognition result with high confidence as a final voice recognition result.
5. The vehicle-mounted all-around display method based on the mobile phone interconnection and the voice recognition as claimed in claim 2, wherein the step of analyzing, format converting, merging and zooming the collected environment images with different visual angles by the image processing module comprises the following steps:
step S501: the image acquisition module acquires environment images in YUV format of different viewing angles around the vehicle in real time through a 360-degree all-round camera;
step S502: the image processing module converts the acquired environment image in the YUV format into an environment image in an RGB format;
step S503: splicing the environment images of the front vehicle, the rear vehicle, the left vehicle and the right vehicle, and combining the environment images into an environment image of 360 degrees;
step S504: further cutting, compressing and zooming the combined 360-degree environment image to enable the 360-degree environment image to adapt to the size of a display screen of the image display module;
step S505: and displaying the processed 360-degree environment image on an image display module of the vehicle-mounted terminal.
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