CN110836660A - Horizontal calibration method and system for HUD - Google Patents
Horizontal calibration method and system for HUD Download PDFInfo
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- CN110836660A CN110836660A CN201911151772.4A CN201911151772A CN110836660A CN 110836660 A CN110836660 A CN 110836660A CN 201911151772 A CN201911151772 A CN 201911151772A CN 110836660 A CN110836660 A CN 110836660A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/20—Measuring inclination, e.g. by clinometers, by levels by using liquids the indication being based on the inclination of the surface of a liquid relative to its container
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C2009/182—Measuring inclination, e.g. by clinometers, by levels by using liquids conductive
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- Radar, Positioning & Navigation (AREA)
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The application discloses a horizontal calibration method and system for a HUD. When the detection value of the first capacitor is consistent with that of the second capacitor, the imaging position of the HUD host computer is in a horizontal state; and when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, informing the HUD host computer to adjust the imaging position to a horizontal state. The image forming position that can't pass through the adjustment HUD has been solved to this application for HUD's formation of image remains the regional technical problem in relatively fixed eye-box all the time. Through the mode of this application through the horizontal state that detects liquid, judge whether the HUD is in balanced state to make the formation of image of HUD remain throughout in the eye box region of relative fixed.
Description
Technical Field
The application relates to the field of HUD horizontal calibration, in particular to a horizontal calibration method and system for HUD.
Background
In HUD applications, the stability of the HUD imaging position, i.e., the relative stability of the eye box position projection, is critical to the imaging quality.
The inventor finds that the HUD installed on the vehicle body is greatly influenced by the change of the angle and the distance of the vehicle body relative to the road surface, the vehicle head is influenced by the damping of the whole vehicle, the load, the gravity center position of the vehicle, the uneven road surface and the like, the vehicle head tilts up and down, the HUD imaging image moves up and down, the image cannot accurately indicate the front road surface, even the HUD imaging image moves out of an eye box area, and poor user experience is caused
Aiming at the problem that the imaging position of the HUD can not be adjusted in the related art, so that the imaging of the HUD is always kept in a relatively fixed eye box area, an effective solution is not provided at present.
Disclosure of Invention
The main object of the present application is to provide a horizontal calibration method and system for HUD to solve the problem that the imaging of HUD can not be always kept in a relatively fixed eye box area by adjusting the imaging position of HUD.
In order to achieve the above object, according to one aspect of the present application, there is provided a horizontal calibration method for a HUD, including: HUD host computer, first electric capacity, second electric capacity, insulating container, be provided with in the HUD host computer insulating container, first electric capacity through first capacitance electrode with insulating container links to each other, the second electric capacity through second capacitance electrode with insulating container links to each other, the electrolyte has been held in the insulating container, insulating container still includes: a bottom electrode at the bottom of the container.
The horizontal calibration method for HUD according to the present application includes: when the detection value of the first capacitor is consistent with that of the second capacitor, the imaging position of the HUD host computer is in a horizontal state; and when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, informing the HUD host computer to adjust the imaging position to a horizontal state.
Further, when the detected value of the first capacitance coincides with the detected value of the second capacitance, then the HUD imaging position being a horizontal state includes:
loading an electric signal to the bottom electrode, and inducing corresponding electric signals on the first capacitor electrode and the second capacitor electrode through the electrolyte;
obtaining a detection value of a first capacitor through the first capacitor connected with the first capacitor electrode;
and obtaining a detection value of a second capacitor through the second capacitor connected with the second capacitor electrode.
Further, when the detected value of the first capacitance coincides with the detected value of the second capacitance, then the HUD imaging position being a horizontal state includes:
when the insulating container is in a non-horizontal position, a detected value of the first capacitance and a detected value of the second capacitance are different due to a shift of the electrolyte.
Further, the bottom electrode includes: one or more electrodes.
Further, the electric signal loaded to the bottom electrode adopts a sine wave driving mode.
Further, the method further comprises:
when the HUD host is in a horizontal state, the included angle between the HUD host and the horizontal plane is not more than 15 degrees;
when the HUD host computer is in a non-horizontal state, the angle between the HUD host computer and the horizontal plane is not less than 30 degrees.
Further, the insulating container includes: at least one U-tube and one said bottom electrode.
Further, the insulating container includes: at least one U-shaped tube and two bottom electrodes.
To achieve the above object, according to another aspect of the present application, there is provided a horizontal calibration system for a HUD, including: HUD host computer, first electric capacity, second electric capacity, insulating container, be provided with in the HUD host computer insulating container, first electric capacity through first capacitance electrode with insulating container links to each other, the second electric capacity through second capacitance electrode with insulating container links to each other, the electrolyte has been held in the insulating container, insulating container still includes: a bottom electrode at the bottom of the container.
The horizontal calibration system for a HUD according to the present application further comprises: the calibration module is used for calibrating the calibration module,
the calibration module is used for detecting the liquid level state through the capacitance value and judging whether the HUD host computer is in the level state or not through the level state judgment result of the liquid.
Further, the calibration module is configured to calibrate the HUD host imaging position to be a horizontal state when the detection value of the first capacitor is consistent with the detection value of the second capacitor;
the calibration module is used for informing the HUD host computer to adjust the imaging position to a horizontal state when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor.
In this application embodiment, a horizontal calibration method and system for HUD adopts HUD host, first electric capacity, second electric capacity, insulating container, be provided with in the HUD host insulating container, first electric capacity pass through first capacitor electrode with insulating container links to each other, second electric capacity pass through second capacitor electrode with insulating container links to each other, the insulating container holds electrolyte, insulating container still includes: the mode of the bottom electrode that is located the container bottom, through when the detected value of first electric capacity is unanimous with the detected value of second electric capacity, then HUD host computer formation of image position is the horizontality, reached when the detected value of first electric capacity with when the detected value of second electric capacity is inconsistent, then inform the HUD host computer adjusts the purpose of formation of image position to horizontality to realized preventing HUD image skew and made HUD's formation of image remain the regional technological effect in relatively fixed eye-box all the time, and then solved unable formation of image position through adjusting HUD, made HUD's formation of image remain the regional technological problem in relatively fixed eye-box all the time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic flow chart of a horizontal calibration method for a HUD according to a first embodiment of the present application;
FIG. 2 is a schematic diagram of a horizontal calibration system for a HUD according to a second embodiment of the present application;
FIG. 3 is a schematic diagram of a horizontal calibration system for a HUD according to a third embodiment of the present application;
FIG. 4 is a schematic diagram of a horizontal calibration system for a HUD according to a fourth embodiment of the present application;
FIG. 5 is a schematic diagram of a horizontal calibration system for a HUD according to a fifth embodiment of the present application;
FIG. 6 is a schematic diagram of the eye box attitude at HUD level according to an embodiment of the present application;
FIG. 7 is a schematic diagram of an eye box attitude at the time of tilting of a HUD according to an embodiment of the present application;
fig. 8 is a schematic diagram of eye box changes when the HUD is level and tilted according to an embodiment of the application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the method includes steps S101 to S102 as follows:
step S101, when the detection value of the first capacitor is consistent with the detection value of the second capacitor, the imaging position of the HUD host computer is in a horizontal state;
the environment in which the method in the embodiment of the present application is implemented mainly includes: HUD host computer, first electric capacity, second electric capacity, single liquid box insulated container, be provided with in the HUD host computer insulated container, first electric capacity through first capacitance electrode with insulated container links to each other, the second electric capacity through second capacitance electrode with insulated container links to each other, the electrolyte has been placed in the insulated container, insulated container still includes: a bottom electrode at the bottom of the container.
And when the detected value of the first capacitor is consistent with the detected value of the second capacitor, the HUD host imaging position is in a horizontal state, and the horizontal state is taken as an initial value of the HUD.
And step S102, when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, informing the HUD host machine to adjust the imaging position to a horizontal state.
When the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, the HUD is considered to be inclined at the moment, and the HUD host needs to be informed to adjust the imaging position to a horizontal state in a corresponding mode.
From the above description, it can be seen that the following technical effects are achieved by the present application:
in this application embodiment, adopt HUD host computer, first electric capacity, second electric capacity, insulating container, be provided with in the HUD host computer insulating container, first electric capacity through first capacitor electrode with insulating container links to each other, the second electric capacity through second capacitor electrode with insulating container links to each other, the electrolyte has been held in the insulating container, insulating container still includes: the mode of the bottom electrode that is located the container bottom, through when the detected value of first electric capacity is unanimous with the detected value of second electric capacity, then HUD host computer formation of image position is the horizontality, reached when the detected value of first electric capacity with when the detected value of second electric capacity is inconsistent, then inform the HUD host computer adjusts the purpose of formation of image position to horizontality to realized preventing HUD image skew and made HUD's formation of image remain the regional technological effect in relatively fixed eye-box all the time, and then solved unable formation of image position through adjusting HUD, made HUD's formation of image remain the regional technological problem in relatively fixed eye-box all the time.
According to the embodiment of the present application, as a preferable one in the embodiment, when the detected value of the first capacitance coincides with the detected value of the second capacitance, the HUD imaging position being in a horizontal state includes: loading an electric signal to the bottom electrode, and inducing corresponding electric signals on the first capacitor electrode and the second capacitor electrode through the electrolyte; obtaining a detection value of a first capacitor through the first capacitor connected with the first capacitor electrode; and obtaining a detection value of a second capacitor through the second capacitor connected with the second capacitor electrode.
And loading an electric signal to the bottom electrode, passing through the electrolyte, and inducing corresponding electric signals on the first capacitance electrode and the second capacitance electrode. Further, a detection value of the first capacitor is obtained through the first capacitor connected with the first capacitor electrode, and a detection value of the second capacitor is obtained through the second capacitor connected with the second capacitor electrode.
Specifically, through loading a sine wave on the bottom electrode, after the sine wave passes through electrolyte, the sine wave that corresponds is inducted on first capacitance electrode and second electric capacity, detects through first electric capacity ADC that links to each other with first capacitance electrode and the second electric capacity ADC that links to each other with electric capacity B electrode, when the detected value of first electric capacity ADC was unanimous with second electric capacity ADC detected value, then think that insulating container is in horizontal position, the formation of image position of HUD this moment keeps stable.
According to the embodiment of the present application, as a preferable one in the embodiment, when the detected value of the first capacitance coincides with the detected value of the second capacitance, the HUD imaging position being in a horizontal state includes: when the insulating container is in a non-horizontal position, a detected value of the first capacitance and a detected value of the second capacitance are different due to a shift of the electrolyte.
Specifically, when insulating container was in non-horizontal position, the sinusoidal wave that inducts on first capacitance electrode and the second capacitance electrode appeared differently because of the skew of electrolyte, detected through the first electric capacity ADC that links to each other with first capacitance electrode and the second electric capacity ADC that links to each other with electric capacity B electrode, and at this moment, the detected value of first electric capacity ADC was inconsistent with second electric capacity ADC detected value to inform the HUD to carry out the corresponding adjustment in horizontal position, thereby make the formation of image position of HUD remain stable.
According to the embodiment of the present application, as a preference in the embodiment, as shown in fig. 5, the bottom electrode 23 includes: one or more electrodes. One or more electrodes may be selected according to the different containers.
According to the embodiment of the present application, it is preferable that the electric signal applied to the bottom electrode is driven by a sine wave.
It should be noted that, a person skilled in the art may also select other electric signals than sine waves to be applied to the bottom electrode driving manner, which is not specifically limited in the embodiments of the present application.
According to the embodiment of the present application, as a preference in the embodiment, as shown in fig. 6 to 8, the method further includes: when the HUD host is in a horizontal state, the included angle between the HUD host and the horizontal plane is not more than 15 degrees; when the HUD host computer is in a non-horizontal state, the angle between the HUD host computer and the horizontal plane is not less than 30 degrees.
As shown in fig. 7, the change in eye box area when the HUD master is in the horizontal state and the HUD master is in the non-horizontal state is shown.
The problem of HUD image deviation caused by the conditions of load, wheel shock, road bump and the like in the imaging process of the HUD is considered. When the HUD host is in a horizontal state, the HUD host is controlled to be not more than 15 degrees of included angle between the HUD host and the horizontal plane. And when the HUD host computer is in a non-horizontal state, namely the HUD is inclined, the angle between the HUD host computer and the horizontal plane is not less than 30 degrees.
Through installing the horizontal position detection device on HUD, come quick adjustment HUD's formation of image position for HUD's formation of image remains throughout in relatively fixed eye box region, in order to improve user experience.
According to an embodiment of the present application, as a preference in the embodiment, as shown in fig. 4, the insulating container includes: at least one U-tube and one said bottom electrode.
Specifically, the horizontal calibration method for HUD according to the embodiment of the present application is implemented in an environment including: HUD host computer, first electric capacity, second electric capacity, U type pipe insulation container, be provided with in the HUD host computer U type pipe insulation container, first electric capacity through first capacitor electrode with insulation container links to each other, the second electric capacity through second capacitor electrode with insulation container links to each other, the electrolyte has been placed to the holding in the insulation container, insulation container still includes: a bottom electrode at the bottom of the container, the method comprising:
when the detection value of the first capacitor is consistent with that of the second capacitor, the imaging position of the HUD host computer is in a horizontal state;
and when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, informing the HUD host computer to adjust the imaging position to a horizontal state.
According to an embodiment of the present application, as a preference in the embodiment, as shown in fig. 5, the insulating container includes: at least one U-shaped tube and two bottom electrodes.
Specifically, the horizontal calibration method for HUD according to the embodiment of the present application is implemented in an environment including: HUD host computer, first electric capacity, second electric capacity, at least one U type pipe insulation container, be provided with in the HUD host computer at least one U type pipe insulation container, first electric capacity pass through first capacitor electrode with insulation container links to each other, the second electric capacity pass through second capacitor electrode with insulation container links to each other, the electrolyte has been held in the insulation container, insulation container still includes: two bottom electrodes located at the bottom of the vessel, the method comprising:
when the detection value of the first capacitor is consistent with that of the second capacitor, the imaging position of the HUD host computer is in a horizontal state;
and when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, informing the HUD host computer to adjust the imaging position to a horizontal state.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
According to an embodiment of the present application, there is also provided a system for implementing the above horizontal calibration method, as shown in fig. 2, including: HUD host computer 10, first electric capacity 21, second electric capacity 22, insulating container 20, be provided with in the HUD host computer 10 insulating container 20, first electric capacity through first capacitance electrode with insulating container links to each other, the second electric capacity through second capacitance electrode with insulating container links to each other, the electrolyte 24 has been held in the insulating container, insulating container still includes: a bottom electrode 23 at the bottom of the container, further comprising: and the calibration module (not shown) is used for detecting the liquid level state through the capacitance value and judging whether the HUD host is in the horizontal state or not through the liquid level state judgment result.
And when the detected value of the first capacitor is consistent with the detected value of the second capacitor, the HUD host imaging position is in a horizontal state, and the horizontal state is taken as an initial value of the HUD. When the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, the HUD is considered to be inclined at the moment, and the HUD host needs to be informed to adjust the imaging position to a horizontal state in a corresponding mode.
Specifically, as shown in fig. 2, the HUD host 10, the insulating container 20, the first capacitor 21, the second capacitor 22, the bottom electrode 23, the electrolyte 24, the first capacitor ADC31, and the second capacitor ADC 32. Insulating container 20 is fixed inside or outside HUD host computer 10 with some mode, and insulating container 20 keeps horizontal position after HUD host computer 10 adjusts to the position, and electrolyte 24 places in insulating container 20, and there is bottom electrode 23 bottom, and at the top of insulating container 20, first electric capacity 21 and second electric capacity 22 place the both sides of insulating container 20 in, and first electric capacity ADC31 links to each other with first electric capacity 21, and second electric capacity ADC32 links to each other with second electric capacity 22.
Specifically, as shown in fig. 3, a sine wave is loaded on the bottom electrode 23, after the sine wave passes through the electrolyte, corresponding sine waves are induced on the first capacitor 21 and the second capacitor 22, and are detected by the first capacitor ADC31 connected to the first capacitor 21 and the second capacitor ADC32 connected to the second capacitor 22, when the detection value of the first capacitor ADC31 is consistent with the detection value of the second capacitor ADC32, the insulating container 20 is considered to be in a horizontal position, and the imaging position of the HUD is kept stable.
Specifically, as shown in fig. 3, when the insulating container 20 is in a non-horizontal position, the sine waves induced on the first capacitor 21 and the second capacitor 22 are different due to the deviation of the electrolyte 24, and are detected by the first capacitor ADC31 connected to the first capacitor 21 and the second capacitor ADC32 connected to the second capacitor 22, at this time, the detected value of the first capacitor ADC31 is inconsistent with the detected value of the second capacitor ADC32, so as to inform the HUD to perform corresponding adjustment of the horizontal orientation, thereby stabilizing the imaging position of the HUD.
According to the embodiment of the present application, as a preferable preference in the embodiment, the calibration module is configured to calibrate the HUD host imaging position to be a horizontal state when the detected value of the first capacitor is consistent with the detected value of the second capacitor; the calibration module is used for informing the HUD host computer to adjust the imaging position to a horizontal state when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor.
Whether the HUD is in a balance state is judged by detecting the horizontal state of liquid, a sine wave is loaded on the bottom electrode 23, after the sine wave passes through electrolyte, the corresponding sine wave is induced on the first capacitor 21 and the second capacitor 22, the detection is carried out through the first capacitor ADC31 connected with the first capacitor 21 and the second capacitor ADC32 connected with the second capacitor 22, when the detection value of the first capacitor ADC31 is consistent with the detection value of the second capacitor ADC32, the insulating container 20 is considered to be in a horizontal position, and the imaging position of the HUD is kept stable. When the insulating container 20 is in a non-horizontal position, sine waves induced on the first capacitor 21 and the second capacitor 22 are different due to the deviation of the electrolyte 24, and are detected by the first capacitor ADC31 connected with the first capacitor 21 and the second capacitor ADC32 connected with the second capacitor 22, at this time, the detection value of the first capacitor ADC31 is inconsistent with the detection value of the second capacitor ADC32, so that the HUD is informed to perform corresponding adjustment of the horizontal orientation, and the imaging position of the HUD is kept stable.
It will be apparent to those skilled in the art that the modules or steps of the present application described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present application is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A horizontal calibration method for a HUD, comprising: HUD host computer, first electric capacity, second electric capacity, insulating container, be provided with in the HUD host computer insulating container, first electric capacity through first capacitance electrode with insulating container links to each other, the second electric capacity through second capacitance electrode with insulating container links to each other, the electrolyte has been held in the insulating container, insulating container still includes: a bottom electrode located at the bottom of the vessel, the method comprising:
when the detection value of the first capacitor is consistent with that of the second capacitor, the imaging position of the HUD host computer is in a horizontal state;
and when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor, informing the HUD host computer to adjust the imaging position to a horizontal state.
2. The horizontal calibration method for a HUD according to claim 1, wherein when the detected value of the first capacitance coincides with the detected value of the second capacitance, then the HUD imaging position is in a horizontal state includes:
loading an electric signal to the bottom electrode, and inducing corresponding electric signals on the first capacitor electrode and the second capacitor electrode through the electrolyte;
obtaining a detection value of a first capacitor through the first capacitor connected with the first capacitor electrode;
and obtaining a detection value of a second capacitor through the second capacitor connected with the second capacitor electrode.
3. The horizontal calibration method for a HUD according to claim 1, wherein when the detected value of the first capacitance coincides with the detected value of the second capacitance, then the HUD imaging position is in a horizontal state includes:
when the insulating container is in a non-horizontal position, a detected value of the first capacitance and a detected value of the second capacitance are different due to a shift of the electrolyte.
4. The horizontal calibration method for a HUD according to claim 1, wherein the bottom electrode comprises: one or more electrodes.
5. The horizontal calibration method for a HUD according to claim 1, wherein the electric signal applied to the bottom electrode is driven in a sine wave manner.
6. The horizontal calibration method for a HUD according to claim 1, further comprising:
when the HUD host is in a horizontal state, the included angle between the HUD host and the horizontal plane is not more than 15 degrees;
when the HUD host computer is in a non-horizontal state, the angle between the HUD host computer and the horizontal plane is not less than 30 degrees.
7. The horizontal calibration method for a HUD according to claim 1, wherein the insulating container includes: at least one U-tube and one said bottom electrode.
8. The horizontal calibration method for a HUD according to claim 1, wherein the insulating container includes: at least one U-shaped tube and two bottom electrodes.
9. A horizontal calibration system for a HUD, comprising: HUD host computer, first electric capacity, second electric capacity, insulating container, be provided with in the HUD host computer insulating container, first electric capacity through first capacitance electrode with insulating container links to each other, the second electric capacity through second capacitance electrode with insulating container links to each other, the electrolyte has been held in the insulating container, insulating container still includes: a bottom electrode at the bottom of the container, further comprising: the calibration module is used for calibrating the calibration module,
the calibration module is used for detecting the liquid level state through the capacitance value and judging whether the HUD host computer is in the level state or not through the level state judgment result of the liquid.
10. The system of claim 9, wherein the calibration module is configured to calibrate the HUD host imaging position to horizontal when the detected value of the first capacitor matches the detected value of the second capacitor;
the calibration module is used for informing the HUD host computer to adjust the imaging position to a horizontal state when the detection value of the first capacitor is inconsistent with the detection value of the second capacitor.
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Application publication date: 20200225 |