CN112560396A - Vehicle-mounted HMI (human machine interface) adjusting method, device and system, electronic equipment and storage medium - Google Patents
Vehicle-mounted HMI (human machine interface) adjusting method, device and system, electronic equipment and storage medium Download PDFInfo
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F40/10—Text processing
- G06F40/103—Formatting, i.e. changing of presentation of documents
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Abstract
The invention provides a vehicle-mounted HMI adjusting method and a device, wherein the vehicle-mounted HMI adjusting method comprises the following steps: acquiring the current distance from human eyes to the vehicle-mounted HMI screen, and calculating the distance variation according to the initial distance from the human eyes to the vehicle-mounted HMI screen and the current distance; acquiring a current vehicle speed; and adjusting the font and the font size of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed. The vehicle-mounted HMI adjusting method can adaptively adjust the font and the size of the vehicle-mounted HMI according to the distance from human eyes to a screen and the vehicle speed, is convenient for a driver to check the display content of the vehicle-mounted HMI interface, ensures the driving safety and simultaneously improves the driving experience.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a vehicle-mounted HMI (human machine interface) adjusting method, device and system, electronic equipment and a storage medium.
Background
The car machine is a vehicle-mounted infotainment product installed in an automobile, and the car machine can realize information communication between people and a car and between the car and the outside (car and car) in function and generally realizes interaction with a user through a screen of the car machine. The font size displayed on the touch screen interface of the existing vehicle machine is generally fixed and unchanged. When the distance between the eyeball and the screen is changed due to the adjustment of the seat by the driver, or when the view angle is narrowed due to the fact that the driver needs to pay attention to look out the road surface right ahead when the vehicle runs at a high speed, or when the vehicle bumps in the running process, the driver needs to stay on the screen for a long time, and the driver can read the content or the message on the screen only by paying more attention, so that the driving safety can be influenced.
Disclosure of Invention
In order to solve the problems in the related art, embodiments of the present invention provide a vehicle-mounted HMI adjusting method, device, system, vehicle-mounted equipment, and a computer-readable storage medium, where the vehicle-mounted HMI adjusting method can adaptively adjust the font size of the vehicle-mounted HMI according to the distance from the human eyes to the screen and the vehicle speed, so as to facilitate the driver to view the screen content, ensure driving safety, and improve the use experience.
According to a first aspect of the embodiments of the present invention, there is provided a vehicle HMI adjusting method, including the steps of:
acquiring the current distance from human eyes to the vehicle-mounted HMI screen, and calculating the distance variation according to the initial distance from the human eyes to the vehicle-mounted HMI screen and the current distance;
acquiring a current vehicle speed;
and adjusting the font and the font size of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
In an optional embodiment, adjusting the font size of the vehicle-mounted HMI according to the distance variation from the human eye to the vehicle-mounted HMI screen and the current vehicle speed comprises the following steps:
acquiring an initial font size of key information of the vehicle-mounted HMI; the key information is information which needs to be concerned by a user in the driving process;
calculating a first font size variable quantity generated due to the distance change of the human eyes according to the distance variable quantity from the human eyes to the vehicle-mounted HMI screen and the initial font size;
calculating the second font size variable quantity generated by the change of the vehicle speed according to the current vehicle speed and the initial font size;
and performing operation on the initial font size, the first font size variable quantity and the second font size variable quantity of the key information of the vehicle-mounted HMI to calculate a target font size, and adjusting the initial font size of the key information of the vehicle-mounted HMI to the target font size.
In an optional embodiment, the method for calculating the first font size variation generated due to the distance variation of the human eyes according to the distance variation of the human eyes to the vehicle-mounted HMI screen and the initial font size comprises the following steps: performing product operation on the distance variable from the human eyes to the vehicle-mounted HMI screen and the distance font size change factor to obtain a first font size variable; and the distance font size change factor is obtained according to the relevance test of the font size and the distance.
In an optional embodiment, the method of calculating the second font size variation generated due to the vehicle speed variation according to the current vehicle speed and the initial font size includes: calculating the second font size variable quantity by performing product operation on the current vehicle speed and a vehicle speed font size change factor; and the vehicle speed font size change factor is obtained according to the relevance test of the font size and the vehicle speed.
In an optional embodiment, after the initial font size of the key information of the vehicle-mounted HMI is adjusted to the target font size, the font size of the key information of the vehicle-mounted HMI is maintained for a preset duration.
In an optional embodiment, after adjusting the initial font size of the key information of the vehicle-mounted HMI to the target font size, the method further includes the steps of: and acquiring a human eye focus, judging whether the human eye focus falls on the screen, and forbidding to adjust the font size of the key information of the vehicle-mounted HMI when the human eye focus falls on the screen.
In an optional embodiment, further comprising the step of: further comprising the steps of: judging whether the current vehicle speed exceeds a preset font adjusting vehicle speed threshold value, and if the current vehicle speed exceeds the preset font adjusting vehicle speed threshold value, thickening and/or adjusting the font of the key information of the vehicle-mounted HMI into a color with high identification degree.
In an optional embodiment, when the vehicle-mounted HMI receives the short message, whether a human eye focus falls on a vehicle-mounted HMI screen is judged, when the human eye focus falls on the vehicle-mounted HMI screen, whether the vehicle-mounted HMI screen is opened is judged, and if the vehicle-mounted HMI screen is opened, a message content display window pops up; and if the vehicle-mounted HMI screen is closed, lightening the screen, popping up a message content display window, and closing the message content display window and the screen when the human eye focus leaves the screen.
In an alternative embodiment, before popping up the message content display window, the method further comprises the following steps: and judging whether the current vehicle speed exceeds a preset message content hiding vehicle speed threshold, and if the current vehicle speed exceeds the preset message content hiding vehicle speed threshold, forbidding to pop up a message content display window and popping up a message prompt window.
In an optional embodiment, further comprising the step of: and adjusting the size of each control icon of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
In an optional embodiment, the method for adjusting the size of each control icon of the vehicle-mounted HMI according to the distance variation from the human eye to the vehicle-mounted HMI screen and the current vehicle speed comprises the following steps:
acquiring the initial length and the initial width of a virtual rectangular containing frame corresponding to the size of each control icon;
calculating the target length and the target width of the virtual rectangular accommodating frame according to the distance variation from human eyes to the vehicle-mounted HMI screen, the current vehicle speed and the initial length and the initial width of the virtual rectangular accommodating frame;
and adjusting the length and the width of the virtual rectangular accommodating frame according to the target length and the target width.
In an optional embodiment, when the size of each control icon of the vehicle-mounted HMI is adjusted, the size of the operation bar accommodating each control icon is also adjusted correspondingly.
According to a second aspect of embodiments of the present invention, there is provided an in-vehicle HMI adjustment apparatus comprising:
the distance acquisition module is used for acquiring the current distance from human eyes to the vehicle-mounted HMI screen and calculating the distance variation according to the initial distance from the human eyes to the vehicle-mounted HMI screen and the current distance;
the vehicle speed acquisition module is used for acquiring the current vehicle speed;
and the font size adjusting module is used for adjusting the font size of the vehicle-mounted HMI according to the distance variation from human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
According to a third aspect of the embodiments of the present invention, a vehicle-mounted HMI adjustment system is provided, including a distance detection device, a vehicle speed detection device, and a vehicle-mounted machine controller;
the distance detection device and the vehicle speed detection device are respectively and electrically connected with the vehicle-mounted machine controller;
the distance detection device is used for detecting the distance from the human eye to the vehicle-mounted HMI screen and transmitting the detected distance from the human eye to the vehicle-mounted HMI screen to the vehicle-mounted machine controller;
the vehicle speed detection device is used for detecting the running speed of a vehicle and transmitting the detected running speed to the vehicle machine controller;
the vehicle-mounted machine controller is used for receiving the distance from the human eye to the vehicle-mounted HMI screen sent by the distance detection device and calculating the distance variable quantity from the human eye to the vehicle-mounted HMI screen; and receiving the running speed sent by the vehicle speed detection device, and adjusting the font and the font size of the key information of the vehicle-mounted HMI of the vehicle according to the distance variation and the running speed.
According to a fourth aspect of the embodiments of the present invention, there is provided a car-in-vehicle device, including a memory, a processor and a display screen; the memory and the display screen are electrically connected with the processor through a communication bus; wherein the memory stores a computer program adapted to be loaded by the processor and to execute the onboard HMI adjustment method as described above, generating an on-screen interface display signal to be transmitted to a display screen; and the display screen receives the screen interface display signal and displays corresponding vehicle-mounted HMI interface content.
According to a fifth aspect of embodiments of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the in-vehicle HMI adjustment method as described above.
By adopting the technical scheme of the embodiment of the invention, the following beneficial effects can be achieved: can be according to the distance of people's eye to the screen and the on-vehicle HMI's of speed self-adaptation regulation typeface font size, typeface thickness and colour, the driver of being convenient for looks over screen content, guarantees driving safety, promotes simultaneously to use and experiences.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a hardware environment of a vehicle HMI regulation method according to an embodiment of the invention;
FIG. 2 is a schematic flow chart of a vehicle HMI regulation method according to an embodiment of the invention;
FIG. 3 is a flowchart illustrating a step S3 of the vehicle HMI adjustment method according to the embodiment of the invention;
FIG. 4 is a schematic diagram illustrating an effect of a key information font before a font size of a key information font of the vehicle-mounted HMI is adjusted according to the embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating an effect of adjusting a font size of a key information font of the vehicle-mounted HMI according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a prompt effect after the vehicle-mounted HMI receives information according to the embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a message content display effect after the vehicle HMI receives information according to the embodiment of the present invention;
fig. 8 is a schematic structural diagram of the vehicle-mounted HMI device according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
HMI is an abbreviation for Human Machine Interface, also called Human Machine Interface. A human-machine interface (also called user interface or user interface) is a medium for interaction and information exchange between a system and a user, and it implements conversion between an internal form of information and a human-acceptable form. And the vehicle-mounted HMI is a human-computer interface of a vehicle machine on the automobile and is used for interacting with a user.
The embodiment provided by the invention comprises an embodiment of a vehicle-mounted HMI adjusting method and also comprises an embodiment of a corresponding vehicle-mounted HMI adjusting device. The following are detailed below.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware environment of a vehicle HMI adjustment method according to an embodiment of the invention.
The hardware environment for implementing the vehicle-mounted HMI regulation method of the following embodiment is a vehicle machine. The vehicle machine comprises a processor, a display screen, a storage medium, a communication interface, a power interface and a memory which are connected through a system bus. The display screen is a touch screen and is used for displaying multimedia information such as pictures, characters and videos and control interfaces of various application programs, recognizing touch operation of a user and realizing information interaction between a person and a vehicle; the storage medium of the vehicle machine stores a vehicle-mounted HMI adjusting device which is used for adjusting fonts and page layout of display information of a vehicle-mounted HMI screen; the communication interface is used for connecting and communicating with a server or other terminals; the power interface is used for being connected with a power supply, and the power supply supplies power to the car machine through the power interface.
The vehicle machine shown in fig. 1 is an example suitable for the vehicle-mounted HMI regulating method of the present invention, and the hardware environment for implementing the vehicle-mounted HMI regulating method according to the following embodiments of the present invention may be other devices having the above-described structure.
An embodiment of the onboard HMI adjustment method of the present invention is explained below in conjunction with the hardware environment shown in fig. 1.
Referring to fig. 2, fig. 2 is a schematic flow chart of a vehicle HMI adjustment method according to an embodiment of the invention.
The vehicle-mounted HMI adjusting method comprises the following steps S1 to S3, wherein the steps are detailed as follows:
step S1, acquiring the current distance from human eyes to the vehicle-mounted HMI screen, and calculating the distance variation according to the initial distance from the human eyes to the vehicle-mounted HMI screen and the current distance;
generally, an automobile may be driven by different drivers at different time periods, and heights of the drivers are different, so that the driver usually needs to adjust a seat before driving the automobile so as to obtain a proper driving posture, and after the seat is adjusted back and forth, a distance between eyes of the driver and a vehicle-mounted HMI screen is changed, that is, a certain difference value is usually generated between a current distance and an initial distance.
In the embodiment, the current distance from the human eye to the vehicle-mounted HMI screen can be acquired through a camera image recognition algorithm or an infrared sensor, and the initial distance from the human eye to the vehicle-mounted HMI screen can be acquired and set through testing in advance. When the automobile leaves the factory, the position of the driving position of the automobile is fixed, the factory position of the driving position of the automobile can be set as the initial position of the driving position, a model with the height of 1.7 m is selected for measurement, and when the model is located at the initial position of the driving position and sits well according to the driving posture, the distance between the eyes of the model and the vehicle-mounted HMI screen can be set as the initial distance. And the initial font size of the display content of the vehicle-mounted HMI screen is the size matched with the initial distance from human eyes to the vehicle-mounted HMI screen.
After the current distance from the human eyes to the vehicle-mounted HMI screen is obtained, the distance variation is calculated according to the current distance and the initial distance, namely, the difference between the current distance and the initial distance can be calculated, and therefore the distance variation can be calculated.
Step S2, acquiring the current vehicle speed;
when a vehicle is driven, the driver focuses on the front of the road, and as the vehicle speed increases, the distance ahead which the driver watches increases almost in proportion to the vehicle speed, but the view angle decreases almost in inverse proportion to the vehicle speed. When the view angle of the driver is narrowed, it is also difficult to see the display content on the screen of the vehicle-mounted HMI, and therefore it is also necessary to adjust the font size of the vehicle-mounted HMI according to the vehicle speed so that the driver can quickly see the display content on the screen.
In the embodiment, the current speed CAN be obtained through the automobile CAN bus according to a set time period; or the vehicle-mounted GPS can be used for acquiring the position information according to a set time period and acquiring the current vehicle speed according to the position change; in general, a mobile terminal such as a mobile phone or a tablet disposed in a vehicle is stationary relative to the vehicle body, and therefore the current vehicle speed can be obtained through the in-vehicle mobile terminal GPS according to a set time period. In order to ensure the accuracy of the vehicle speed, the vehicle speed can be acquired through a plurality of different channels, and the current vehicle speed is obtained by comprehensively processing the vehicle speeds acquired through the different channels.
Step S3, adjusting the font and the font size of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed;
in this embodiment, please refer to fig. 3, wherein fig. 3 is a flowchart illustrating a step S3 of the vehicle HMI adjusting method according to the embodiment of the invention.
The step S3 includes the following steps:
step S31: acquiring an initial font size of key information of the vehicle-mounted HMI; the key information is information which needs to be concerned by a user in the driving process;
in this embodiment, the method for obtaining the font size of the initial font comprises: the method is characterized in that the method comprises the steps that a driver with the height of 1.7 m is measured when the driver is located at the initial position of a driving position of an automobile, when the automobile does not run, the distance from eyes of the driver to a vehicle-mounted HMI screen is the initial distance, and when the font on the screen is adjusted to enable the driver to see clearly the content on the screen, the font and the font at the moment are the initial font and the font.
Step S32: calculating a first font size variable quantity generated due to the distance change of the human eyes according to the distance variable quantity from the human eyes to the vehicle-mounted HMI screen and the initial font size;
in this embodiment, in the step S32, the method for calculating the variation of the first font size caused by the variation of the distance between the human eye and the vehicle-mounted HMI screen according to the variation of the distance between the human eye and the vehicle-mounted HMI screen includes: performing product operation on the distance variable from the human eyes to the vehicle-mounted HMI screen and the distance font size change factor to obtain a first font size variable; and the distance font size change factor is obtained according to the relevance test of the font size and the distance.
In this embodiment, the method for testing the association between the font size and the distance includes: the distance character size change factor is obtained by testing the relevance between the character size and the distance of a driver with the height of 1.7 m, and can be adjusted according to the actual effect. Specifically, when the vehicle speed is 0km/h, namely in a parking state, a driver with the height of 1.7 m actually watches the vehicle-mounted HMI interface at an initial driving position, records the distance from human eyes to a vehicle-mounted HMI screen, adjusts the current font size to be the size when the driver can clearly view the font on the HMI interface, records the current font size and takes the font size as the initial font size. And then moving the driver seat forwards or backwards to change the distance from the human eyes to the screen of the vehicle-mounted HMI, and measuring the distance from the current human eyes to the screen of the vehicle-mounted HMI through a sensor when a driver with the height of 1.7 m increases the corresponding word size according to the actual requirement so as to clearly see the fonts of key messages on the HMI interface. Through the scheme, the distance from human eyes to a screen of the car machine, namely the distance word size change factor can be obtained when the font word size needs to be increased by 1pt (namely one point). The distance font change factor a1 is 1 pt/(eye distance after changing seat position-eye initial distance), such as pt/100 mm.
Step S33: calculating the second font size variable quantity generated by the change of the vehicle speed according to the current vehicle speed and the initial font size;
in this embodiment, in step S33, the method of calculating the second font size variation amount generated by the vehicle speed variation according to the current vehicle speed and the initial font size includes: calculating the second font size variable quantity by performing product operation on the current vehicle speed and a vehicle speed font size change factor; and the vehicle speed font size change factor is obtained according to the relevance test of the font size and the vehicle speed.
The vehicle speed font size change factor is obtained by testing the relevance between the font size and the vehicle speed of a driver with the height of 1.7 m, and can be adjusted according to the actual effect. Specifically, a driver with the height of 1.7 m simulates driving to change the test vehicle speed, and when the corresponding word size is increased according to actual needs so as to clearly see the font of the key message on the HMI interface, the current vehicle speed is obtained through the measured CAN bus. Through the scheme, the variable quantity of the vehicle speed, namely the vehicle speed font size change factor, can be obtained when the font size needs to be increased by 1pt (namely one point). The vehicle speed character size change factor b1 is 1 pt/vehicle speed, such as 1pt/20 km/h.
Step S34: and performing operation on the initial font size, the first font size variable quantity and the second font size variable quantity of the key information of the vehicle-mounted HMI to calculate a target font size, and adjusting the initial font size of the key information of the vehicle-mounted HMI to the target font size.
For example, the initial font size is 22 pt; the variation of the first font size obtained by calculation is 4pt, namely 4 points; the calculated variation of the second font size is 10pt, namely 10 points, so that the point number of the changed font size is 22pt +4pt +10pt equal to 36pt, and the font size corresponding to 36pt is small, the target font size of the key information of the vehicle-mounted HMI is small, so that the initial font size of the key information of the vehicle-mounted HMI is adjusted to be small, at the moment, a driver can clearly see the content of the key information on the HMI interface, can quickly read the information, and cannot influence the driving safety.
In an optional embodiment, in step S34, after the initial font size of the key information of the vehicle-mounted HMI is adjusted to the target font size, the font size of the key information of the vehicle-mounted HMI is maintained for a preset duration.
The font size duration is set to prevent the problem that the driver cannot see the content of the key information clearly because the font size of the key information on the HMI interface is changed continuously due to the fact that the speed is changed continuously in the driving process of the vehicle. After the font size is set for a certain duration, the font size cannot change within a certain time, so that the driver can see the content of the key information of the vehicle-mounted HMI clearly during driving measurement, and the driving experience is improved.
In an optional embodiment, in step S34, after adjusting the initial font size of the key information of the vehicle HMI to the target font size, the method may further include the steps of: and acquiring a human eye focus, judging whether the human eye focus falls on the screen, and forbidding to adjust the font size of the key information of the vehicle-mounted HMI when the human eye focus falls on the screen.
The human eye focus can be obtained according to the human eye tracking module, and whether the human eye focus falls on the screen or not is judged through an eyeball tracking technology. When the human eye focus falls on the screen, the font and the word size of the key information of the vehicle-mounted HMI are forbidden to be adjusted, namely when a driver needs to check the information on the vehicle-mounted HMI interface, when the human eye focus is transferred to the vehicle-mounted HMI screen, the font and the word size of the key information of the HMI interface are not adjusted any more, but are adjusted after the sight of the driver leaves, so that the method is favorable for the driver to clearly see the content of the key information of the vehicle-mounted HMI during driving measurement, and the driving experience is improved.
In an alternative embodiment, after step S3, the method further includes the steps of: judging whether the current vehicle speed exceeds a preset font adjusting vehicle speed threshold value, and if the current vehicle speed exceeds the preset font adjusting vehicle speed threshold value, thickening and/or adjusting the font of the key information of the vehicle-mounted HMI into a color with high identification degree.
The font adjusting vehicle speed threshold is obtained according to a driving test, and can be 50 km/h; the font thickness adjustment quantity of the key information of the vehicle-mounted HMI is also obtained according to a driving test; and the color with high identification degree can be a more vivid color such as red or orange, so that the driver can more clearly read the content of the key information of the HMI interface, and the driving safety is improved.
Referring to fig. 4 and 5, fig. 4 is a schematic diagram illustrating an effect of a key information font size before adjusting the key information font size of the vehicle HMI according to the embodiment of the present invention; fig. 5 is a schematic diagram illustrating an effect of adjusting a font size of a key information font of the vehicle HMI according to the embodiment of the present invention.
In the display interface of the vehicle-mounted HMI, the font size of the font of the key information before font adjustment is smaller, the stroke is thinner, and the color is the conventional color, namely black. In the driving process, as the distance from human eyes to the vehicle-mounted HMI screen changes and the vehicle speed changes continuously, the driver needs to focus on the screen for a long time with high attention to see the key information clearly. Such as the name of the song, the name of the singer, and the name of the album shown in the figure. After the fonts are adjusted, the fonts and the word sizes of the key information are large, the strokes are thick, and the fonts are red, so that a driver can easily see the content of the key information on the vehicle-mounted HMI screen clearly in the driving process.
Referring to fig. 6 and 7, fig. 6 is a schematic diagram illustrating a prompt effect after the vehicle-mounted HMI receives information according to the embodiment of the present invention; fig. 7 is a schematic diagram illustrating a message content display effect after the vehicle-mounted HMI receives the information according to the embodiment of the present invention.
In an optional embodiment, when the vehicle-mounted HMI receives the short message, whether a human eye focus falls on a vehicle-mounted HMI screen is judged, when the human eye focus falls on the vehicle-mounted HMI screen, whether the vehicle-mounted HMI screen is opened is judged, and if the vehicle-mounted HMI screen is opened, a message content display window pops up; and if the vehicle-mounted HMI screen is closed, lightening the screen, popping up a message content display window, and closing the message content display window and the screen when the human eye focus leaves the screen.
When the vehicle-mounted HMI receives the short message, the vehicle-mounted HMI sends out message prompt tones through the loudspeaker, and after hearing the message prompt tones, the driver turns the head to look at the vehicle-mounted HMI screen if necessary. When the human eye focus falls on the vehicle-mounted HMI screen, judging whether the vehicle-mounted HMI screen is opened, if the vehicle-mounted HMI screen is opened, popping up a message content display window to display message content; and if the vehicle-mounted HMI screen is closed, lightening the screen, popping up a message content display window, and closing the message content display window and the screen when the human eye focus leaves the screen.
Thus, during driving, when the short message is received, the driver does not need to manually click the screen to read the message content, but can see the specific content of the short message by turning the head and the sight line to transfer to the HMI screen, as shown in FIG. 7. When the sight of the driver leaves the HMI screen, the short message is closed and the screen is closed, manual operation is not needed, the operation is very convenient, and the driving safety is improved.
Further, before popping up the message content display window, the method also comprises the following steps: judging whether the current vehicle speed exceeds a preset message content hiding vehicle speed threshold value, wherein the message content hiding vehicle speed threshold value can be obtained according to a driving test; if the current vehicle speed exceeds the preset message content hiding vehicle speed threshold, the message content display window is forbidden to pop up, and the message prompt window is popped up, namely, the message content is not displayed any more, and only the characters like 'short message received' are displayed, so that the driving safety can be improved.
In an alternative embodiment, after step S3, the method further includes the steps of: and adjusting the size of each control icon of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
The method comprises the following steps:
acquiring the initial length and the initial width of a virtual rectangular containing frame corresponding to the size of each control icon;
calculating the target length and the target width of the virtual rectangular accommodating frame according to the distance variation from human eyes to the vehicle-mounted HMI screen, the current vehicle speed and the initial length and the initial width of the virtual rectangular accommodating frame;
and adjusting the length and the width of the virtual rectangular accommodating frame according to the target length and the target width.
The method comprises the following steps of calculating the target length and the target width of the virtual rectangular accommodating frame according to the distance variation from human eyes to the vehicle-mounted HMI screen, the current vehicle speed, and the initial length and the initial width of the virtual rectangular accommodating frame, wherein the method comprises the following steps:
calculating a first length variation of the rectangular accommodating frame generated due to the distance variation of the human eyes according to the distance variation from the human eyes to the vehicle-mounted HMI screen, calculating the length variation of the rectangular accommodating frame generated due to the vehicle speed variation according to the current vehicle speed, and performing and calculating the initial length, the first length variation and the second length variation to obtain the target length of the virtual rectangular accommodating frame;
calculating a first width variation of the rectangular accommodating frame generated due to the distance variation of the human eyes according to the distance variation from the human eyes to the vehicle-mounted HMI screen, calculating the width variation of the rectangular accommodating frame generated due to the vehicle speed variation according to the current vehicle speed, and performing and calculating the initial width, the first width variation and the second width variation to obtain the target width of the virtual rectangular accommodating frame.
The calculation method of the first length variation comprises the following steps: performing product operation on the difference between the current distance and the initial distance and a first length change factor to obtain a first length change quantity; the first length change factor is a ratio of the length change amount to the human eye distance change amount, is obtained according to the relevance test of the length and the distance of the virtual rectangular accommodating frame, and is adjusted according to an actual effect.
The method for calculating the second length variation comprises the following steps: performing product operation on the difference between the current human eye distance and the initial human eye distance and a second length change factor to obtain a second length change quantity; the second length change factor is a ratio of the length change amount to the human eye distance change amount, is obtained according to the relevance test of the length and the distance of the virtual rectangular accommodating frame, and is adjusted according to an actual effect.
The calculation method of the first width variation comprises the following steps: performing product operation on the difference between the current distance and the initial distance and a first width change factor to obtain a first width change quantity; the first width change factor is a ratio of the width change amount to the human eye distance change amount, is obtained according to the relevance test of the width and the distance of the virtual rectangular accommodating frame, and is adjusted according to an actual effect.
The method for calculating the second width variation comprises the following steps: performing product operation on the difference between the current distance and the initial distance and a second width change factor to obtain a second width change quantity; the second width change factor is a ratio of the width change amount to the human eye distance change amount, is obtained according to the relevance test of the width and the distance of the virtual rectangular accommodating frame, and is adjusted according to an actual effect.
In an optional embodiment, when the sizes of the control icons of the vehicle-mounted HMI are adjusted, the sizes of the operation bars accommodating the control icons are also adjusted correspondingly, so that the layout of the HMI page is adjusted, a driver can see the operable controls on the HMI screen clearly, and the operation and the control are facilitated.
By adopting the vehicle-mounted HMI adjusting method provided by the embodiment of the invention, the font size, the font thickness and the font color of the vehicle-mounted HMI can be adaptively adjusted according to the distance from human eyes to the screen and the vehicle speed, so that a driver can conveniently check the screen content when driving at high speed, the driving safety is ensured, and the use experience is improved.
It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention.
According to a second aspect of the invention, a vehicle HMI adjustment apparatus is also provided.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a vehicle HMI device according to an embodiment of the present invention.
An embodiment of an in-vehicle HMI adjustment apparatus usable for executing the above-described in-vehicle HMI adjustment method is explained below. For convenience of illustration, the structural schematic diagram of the embodiment of the vehicle-mounted HMI regulating device only shows a part related to the embodiment of the present invention, and those skilled in the art will understand that the device structure shown in the figure does not constitute a limitation of the device, and may include more or less components than those shown, or combine some components, or arrange different components.
The vehicle-mounted HMI adjusting device comprises:
the distance acquisition module 1 is used for acquiring the current distance from human eyes to the vehicle-mounted HMI screen and calculating the distance variation according to the initial distance from the human eyes to the vehicle-mounted HMI screen and the current distance;
the vehicle speed obtaining module 2 is used for obtaining the current vehicle speed;
and the font size adjusting module 3 is used for adjusting the font size of the vehicle-mounted HMI according to the distance variation from human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
It should be noted that, in the implementation of the vehicle-mounted HMI adjustment apparatus in the foregoing example, because the contents of information interaction, execution process, and the like between the modules are based on the same concept as the foregoing method embodiment of the present invention, the technical effect brought by the implementation is the same as the foregoing method embodiment of the present invention, and specific contents may refer to the description in the method embodiment of the present invention, and are not described again here.
In addition, in the above-mentioned embodiment of the vehicle-mounted HMI regulating apparatus, the logical division of the function modules is only an example, and in practical applications, the above-mentioned function distribution may be performed by different function modules according to needs, for example, due to configuration requirements of corresponding hardware or convenience of implementation of software, that is, the internal structure of the vehicle-mounted HMI regulating apparatus is divided into different function modules to perform all or part of the above-described functions.
According to a third aspect of the invention, a vehicle-mounted HMI regulating system is also provided, comprising a distance detection device, a vehicle speed detection device and a vehicle controller;
the distance detection device and the vehicle speed detection device are respectively and electrically connected with the vehicle-mounted machine controller;
the distance detection device is used for detecting the distance from the human eye to the vehicle-mounted HMI screen and transmitting the detected distance from the human eye to the vehicle-mounted HMI screen to the vehicle-mounted machine controller;
the vehicle speed detection device is used for detecting the running speed of a vehicle and transmitting the detected running speed to the vehicle machine controller;
the vehicle-mounted machine controller is used for receiving the distance from the human eye to the vehicle-mounted HMI screen sent by the distance detection device and calculating the distance variable quantity from the human eye to the vehicle-mounted HMI screen; and receiving the running speed sent by the vehicle speed detection device, and adjusting the font and the font size of the key information of the vehicle-mounted HMI of the vehicle according to the distance variation and the running speed.
According to a fourth aspect of the present invention, there is also provided a car-in-vehicle device, comprising a memory, a processor and a display screen; the memory and the display screen are electrically connected with the processor through a communication bus; wherein the memory stores a computer program adapted to be loaded by the processor and to execute the onboard HMI adjustment method as described above, generating an on-screen interface display signal to be transmitted to a display screen; and the display screen receives the screen interface display signal and displays corresponding vehicle-mounted HMI interface content.
According to a fifth aspect of the present invention, there is also provided a computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, realizes the in-vehicle HMI adjustment method as described above.
It will be understood by those of ordinary skill in the art that all or part of the steps of the method specified in any embodiment of the invention may be implemented by a program instructing the relevant hardware (personal computer, server, network device, etc.). The program may be stored in a computer-readable storage medium. Which when executed, may perform all or a portion of the steps of the methods specified in any of the embodiments above. The aforementioned storage medium may include any medium that can store program code, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (16)
1. A vehicle-mounted HMI adjusting method is characterized in that: the method comprises the following steps:
acquiring the current distance from human eyes to the vehicle-mounted HMI screen, and calculating the distance variation according to the initial distance from the human eyes to the vehicle-mounted HMI screen and the current distance;
acquiring a current vehicle speed;
and adjusting the font and the font size of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
2. The onboard HMI adjustment method according to claim 1, characterized in that: adjusting the font size of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed, and the method comprises the following steps:
acquiring an initial font size of key information of the vehicle-mounted HMI; the key information is information which needs to be concerned by a user in the driving process;
calculating a first font size variable quantity generated due to the distance change of the human eyes according to the distance variable quantity from the human eyes to the vehicle-mounted HMI screen and the initial font size;
calculating the second font size variable quantity generated by the change of the vehicle speed according to the current vehicle speed and the initial font size;
and performing operation on the initial font size, the first font size variable quantity and the second font size variable quantity of the key information of the vehicle-mounted HMI to calculate a target font size, and adjusting the initial font size of the key information of the vehicle-mounted HMI to the target font size.
3. The onboard HMI adjustment method according to claim 2, characterized in that: calculating the variable quantity of a first font size generated due to the distance change of the human eyes according to the variable quantity of the distance from the human eyes to the vehicle-mounted HMI screen and the initial font size, wherein the method comprises the following steps: performing product operation on the distance variable from the human eyes to the vehicle-mounted HMI screen and the distance font size change factor to obtain a first font size variable; and the distance font size change factor is obtained according to the relevance test of the font size and the distance.
4. The onboard HMI adjustment method according to claim 2, characterized in that: calculating the second font size variable quantity generated by the vehicle speed change according to the current vehicle speed and the initial font size, wherein the method comprises the following steps: calculating the second font size variable quantity by performing product operation on the current vehicle speed and a vehicle speed font size change factor; and the vehicle speed font size change factor is obtained according to the relevance test of the font size and the vehicle speed.
5. The onboard HMI adjustment method according to claim 2, characterized in that: and after the initial font size of the key information of the vehicle-mounted HMI is adjusted to the target font size, maintaining the font size of the key information of the vehicle-mounted HMI within a preset duration.
6. The onboard HMI adjustment method according to claim 2, characterized in that: after the initial font size of the key information of the vehicle-mounted HMI is adjusted to the target font size, the method further comprises the following steps: and acquiring a human eye focus, judging whether the human eye focus falls on the screen, and forbidding to adjust the font size of the key information of the vehicle-mounted HMI when the human eye focus falls on the screen.
7. The onboard HMI adjustment method according to claim 1, characterized in that: further comprising the steps of: judging whether the current vehicle speed exceeds a preset font adjusting vehicle speed threshold value, and if the current vehicle speed exceeds the preset font adjusting vehicle speed threshold value, thickening and/or adjusting the font of the key information of the vehicle-mounted HMI into a color with high identification degree.
8. The onboard HMI adjustment method according to claim 1, characterized in that: judging whether a human eye focus falls on a vehicle-mounted HMI screen or not when the vehicle-mounted HMI receives the short message, judging whether the vehicle-mounted HMI screen is opened or not when the human eye focus falls on the vehicle-mounted HMI screen, and popping up a message content display window if the vehicle-mounted HMI screen is opened; and if the vehicle-mounted HMI screen is closed, lightening the screen, popping up a message content display window, and closing the message content display window and the screen when the human eye focus leaves the screen.
9. The onboard HMI adjustment method according to claim 8, characterized in that: before popping up the message content display window, the method further comprises the following steps: and judging whether the current vehicle speed exceeds a preset message content hiding vehicle speed threshold, and if the current vehicle speed exceeds the preset message content hiding vehicle speed threshold, forbidding to pop up a message content display window and popping up a message prompt window.
10. The onboard HMI adjustment method according to claim 1, characterized in that: further comprising the steps of: and adjusting the size of each control icon of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
11. The onboard HMI adjustment method according to claim 10, characterized in that: the method for adjusting the sizes of the control icons of the vehicle-mounted HMI according to the distance variation from the human eyes to the vehicle-mounted HMI screen and the current vehicle speed comprises the following steps:
acquiring the initial length and the initial width of a virtual rectangular containing frame corresponding to the size of each control icon;
calculating the target length and the target width of the virtual rectangular accommodating frame according to the distance variation from human eyes to the vehicle-mounted HMI screen, the current vehicle speed and the initial length and the initial width of the virtual rectangular accommodating frame;
and adjusting the length and the width of the virtual rectangular accommodating frame according to the target length and the target width.
12. The onboard HMI adjustment method according to claim 10, characterized in that: when the sizes of the control icons of the vehicle-mounted HMI are adjusted, the sizes of the operation columns for containing the control icons are adjusted correspondingly.
13. An on-vehicle HMI adjusting device characterized in that: the method comprises the following steps:
the distance acquisition module is used for acquiring the current distance from human eyes to the vehicle-mounted HMI screen and calculating the distance variation according to the initial distance from the human eyes to the vehicle-mounted HMI screen and the current distance;
the vehicle speed acquisition module is used for acquiring the current vehicle speed;
and the font size adjusting module is used for adjusting the font size of the vehicle-mounted HMI according to the distance variation from human eyes to the vehicle-mounted HMI screen and the current vehicle speed.
14. An on-board HMI adjustment system, characterized in that: the vehicle-mounted device comprises a distance detection device, a vehicle speed detection device and a vehicle-mounted machine controller;
the distance detection device and the vehicle speed detection device are respectively and electrically connected with the vehicle-mounted machine controller;
the distance detection device is used for detecting the distance from the human eye to the vehicle-mounted HMI screen and transmitting the detected distance from the human eye to the vehicle-mounted HMI screen to the vehicle-mounted machine controller;
the vehicle speed detection device is used for detecting the running speed of a vehicle and transmitting the detected running speed to the vehicle machine controller;
the vehicle-mounted machine controller is used for receiving the distance from the human eye to the vehicle-mounted HMI screen sent by the distance detection device and calculating the distance variable quantity from the human eye to the vehicle-mounted HMI screen; and receiving the running speed sent by the vehicle speed detection device, and adjusting the font and the font size of the key information of the vehicle-mounted HMI of the vehicle according to the distance variation and the running speed.
15. The car machine equipment comprises a memory, a processor and a display screen; the memory and the display screen are electrically connected with the processor through a communication bus; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the on-board HMI adjustment method according to any of the claims 1-12, generating an on-screen interface display signal for transmission to a display screen; and the display screen receives the screen interface display signal and displays corresponding vehicle-mounted HMI interface content.
16. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the on-board HMI adjustment method according to any of the claims 1-12.
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