CN114441003A - Method for realizing discontinuous and gradual display effect of fuel gauge - Google Patents

Method for realizing discontinuous and gradual display effect of fuel gauge Download PDF

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Publication number
CN114441003A
CN114441003A CN202210063597.9A CN202210063597A CN114441003A CN 114441003 A CN114441003 A CN 114441003A CN 202210063597 A CN202210063597 A CN 202210063597A CN 114441003 A CN114441003 A CN 114441003A
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layer
progress
display
oil
interval
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史亚萌
李凤
胡延廷
胡菁奕
汪明
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Instrument Panels (AREA)

Abstract

The invention discloses a method for realizing the discontinuous gradual change display effect of an oil meter, which comprises the following steps: s1, obtaining the fuel quantity resistance value of the vehicle; s2, obtaining the oil mass percentage P according to the oil mass resistance value; s3, generating a plurality of image layer output signals according to the oil mass percentage P and a preset alarm threshold J; and the display screen receives the output signals of all the layers and displays the oil quantity in a superposition mode. The invention realizes the accurate display of the residual oil quantity of the vehicle and enhances the visual effect of the fuel gauge.

Description

Method for realizing discontinuous and gradual display effect of fuel gauge
Technical Field
The invention relates to the field of oil meter display, in particular to a method for realizing a discontinuous gradual change display effect of an oil meter.
Background
Automobiles become necessities in life, and an oil meter is main header information of an automobile instrument; the traditional segment code type fuel gauge displays according to the fuel quantity and the liquid level in a segmented mode, and as a classic fuel quantity display mode, a driver can conveniently and visually read fuel level information. Due to the display limitation of the segment code screen, the display form of the segment code screen is single in color and visual effect, and the deviation of the segment jump on the accuracy of the oil quantity value is large.
TFT screen is already the standard of the car cockpit; because the TFT screen colour is abundant, the variety of demonstration, and more traditional pointer type, lamp house or segment code formula fuel gauge, display form and the rich degree of colour under its liquid crystal are also more diversified, and the fuel gauge shows that plasticity is stronger, the precision is higher.
In the prior art, a segment code type fuel gauge generally adopts a 4-segment or 8-segment segmentation form to display the fuel quantity and the liquid level, and the fuel quantity schedule jumps segment by segment; the segment code screen is monochrome display, and monochrome gradual display needs to be realized in a mode of splicing and pasting color films. However, the jump display form of the 4-segment or 8-segment code fuel gauge has a residual fuel display deviation of about 25% or 12.5%, and the single display form of the fuel gauge cannot accurately represent the residual fuel value, has a single color, and cannot form a rich visual effect.
Disclosure of Invention
The invention aims to provide a method for realizing the discontinuous and gradual display effect of an oil meter so as to improve the display precision and the display visual effect of the residual oil quantity.
In order to solve the technical problem, the invention provides a technical scheme that: a method for realizing the discontinuous gradual change display effect of an oil meter comprises the following steps:
s1, acquiring a vehicle fuel quantity resistance value;
s2, obtaining the oil mass percentage P according to the oil mass resistance value;
s3, generating a plurality of image layer output signals according to the oil mass percentage P and a preset alarm threshold J; and the display screen receives the output signals of all the layers and displays the oil quantity in a superposition mode.
According to the scheme, the image layers corresponding to all the image layer output signals in the S3 comprise a T layer, an M1 layer, an M2 layer and a B layer which are respectively a highlight layer, a progress layer, a base layer and a three-dimensional shadow layer; wherein, the M2 layer is static, the display of the M2 layer does not change along with the oil quantity, and the T layer and the B layer change along with the display progress of the M1 layer.
According to the scheme, the height of the display area of the M2 layer is a, the total length is b, and the display area is divided into 4 sections of progress intervals which are mutually spaced.
According to the scheme, the first section of progress interval and the second section of progress intervalIs at an interval w1The interval between the second section of progress interval and the third section of progress interval is w2The interval between the third section of progress interval and the fourth section of progress interval is w3
According to the scheme, the lengths of the first to fourth sections of progress intervals are equal, and each progress interval represents one fourth of the total oil quantity.
According to the scheme, the effective length Y of the M1 layer has the value of b-w1-w2-w3When the oil volume percentage is in the first section of progress interval, the display progress of the M1 layer is Y x P; when the percentage of oil is in the second section of the progress interval, the display progress of the M1 layer is w1+ Y + P; when the percentage of oil is in the third section progress interval, the display progress of the M1 layer is w1+w2+ Y + P; when the oil quantity percentage is in the fourth section progress interval, the display progress of the M1 layer is w1+w2+w3+ Y + P; and when the oil quantity percentage is less than or equal to a preset alarm threshold value, the M1 layer displays an early warning color.
According to the scheme, the T layer comprises Alpha channel filling treatment; when the oil mass percentage is smaller than a preset alarm threshold value, the value of the Alpha channel of the T layer is 0; when the oil mass percentage is larger than a preset alarm threshold value, gradually changing the value of the Alpha channel of the T layer into 0-1 for filling treatment;
when the oil mass percentage is in the first section of progress interval, if the oil mass percentage is larger than a preset alarm threshold value, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the second section of the progress interval, if the oil amount percentage is less than or equal to (J +0.25), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w1Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the third section progress interval, if the oil amount percentage is less than or equal to (J +0.5), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w2Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the fourth section of progress interval, if the oil amount percentage is less than or equal to (J +0.75), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w3Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)。
According to the scheme, the width of the B-layer paste is increased to the left by w compared with the starting end of the M1 layeraHas a display range of w width increased rightward from the end of the M1 layeraThe display range of (1).
According to the scheme, the width of the B-layer paste picture at two sides of the tail end of the M1 layer is 2waIn the display range of (1), gradual filling processing is carried out by adopting Alpha channel values of 1-0; and when the oil mass percentage is less than or equal to a preset alarm threshold value, the layer B displays an early warning color.
According to the scheme, the early warning color is an RGB color (255,0, 0).
The invention has the beneficial effects that: the oil quantity is displayed by acquiring the percentage of the residual oil quantity, and the visual effect of the oil quantity meter is enhanced by outputting a plurality of layers and overlapping the layers for display.
Further, compared with the traditional multi-section jumping display, the multi-section jumping display method combines the multi-section display with the accurate display, can judge the current approximate oil quantity through the section displayed by the oil quantity meter, and can accurately reflect the current oil quantity through the display progress.
Furthermore, according to the relation between the current oil quantity and the early warning threshold value, the signals of all the layers are output, so that when the oil quantity is higher than or lower than the early warning threshold value, the oil quantity meter has different display effects, and a vehicle owner is prompted to refuel in time.
Drawings
FIG. 1 is a schematic view illustrating the display effect of an oil gauge according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of layers according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a display area of M2 layers according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a B-layer display area according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Referring to fig. 1 to 4, a method for realizing a discontinuous and gradual display effect of an oil meter includes the following steps:
s1, acquiring a vehicle fuel quantity resistance value;
s2, obtaining the oil mass percentage P according to the oil mass resistance value;
s3, generating a plurality of image layer output signals according to the oil mass percentage P and a preset alarm threshold J; and the display screen receives the output signals of all the layers and displays the oil quantity in a superposition mode.
Further, the image layers corresponding to all the image layer output signals in S3 include a T layer, an M1 layer, an M2 layer, and a B layer, which are respectively a highlight layer, a progress layer, a base layer, and a stereo shadow layer; wherein, the M2 layer is static, the display of the M2 layer does not change along with the oil quantity, and the T layer and the B layer change along with the display progress of the M1 layer.
Further, the M2 layer display area has a height a and a total length b, and is divided into 4 progress sections spaced from each other.
Further, the interval between the first section of progress interval and the second section of progress interval is w1The interval between the second section of progress interval and the third section of progress interval is w2The interval between the third section of progress interval and the fourth section of progress interval is w3
Further, the lengths of the first to fourth progress sections are equal, and each progress section represents one fourth of the total oil amount.
Further, the effective length Y of the M1 layer has a value of b-w1-w2-w3When the oil mass percentage is in the first section of progress areaIn time, the display progress of the M1 layer is Y × P; when the oil volume percentage is in the second section of the progress interval, the display progress of the M1 layer is w1+ Y + P; when the percentage of oil is in the third section progress interval, the display progress of the M1 layer is w1+w2+ Y × P; when the oil quantity percentage is in the fourth section progress interval, the display progress of the M1 layer is w1+w2+w3+ Y + P; and when the oil quantity percentage is less than or equal to a preset alarm threshold value, the M1 layer displays an early warning color.
Further, the T layer includes a filling process of Alpha channels; when the oil mass percentage is smaller than a preset alarm threshold value, the value of the Alpha channel of the T layer is 0; when the oil mass percentage is larger than a preset alarm threshold value, gradually changing the value of the Alpha channel of the T layer into 0-1 for filling treatment;
when the oil volume percentage is in the first section of progress interval, if the oil volume percentage is larger than a preset alarm threshold value, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the second section of the progress interval, if the oil amount percentage is less than or equal to (J +0.25), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w1Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the third section progress interval, if the oil amount percentage is less than or equal to (J +0.5), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w2Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the fourth section of progress interval, if the oil amount percentage is less than or equal to (J +0.75), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w3Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)。
Further, the B layer map is increased to the left by w width compared to the start of the M1 layeraHas a display range of increased width rightward from the end of the M1 layer aswaThe display range of (2).
Further, the width of the B-layer patch was 2w at both sides of the end of the M1 layeraIn the display range of (1), gradual filling processing is carried out by adopting Alpha channel values of 1-0; and when the oil mass percentage is less than or equal to a preset alarm threshold value, the layer B displays an early warning color.
Further, the warning color is RGB color (255,0, 0).
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A method for realizing the discontinuous gradual change display effect of an oil meter is characterized by comprising the following steps: the method comprises the following steps:
s1, acquiring a vehicle fuel quantity resistance value;
s2, obtaining the oil mass percentage P according to the oil mass resistance value;
s3, generating a plurality of image layer output signals according to the oil mass percentage P and a preset alarm threshold J; and the display screen receives the output signals of all the layers and displays the oil quantity in a superposition mode.
2. The method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 1, is characterized in that: the image layers corresponding to all the image layer output signals in the S3 include a T layer, an M1 layer, an M2 layer, and a B layer, which are respectively a highlight layer, a progress layer, a base layer, and a three-dimensional shadow layer; wherein, the M2 layer is static, the display of the M2 layer does not change along with the oil quantity, and the T layer and the B layer change along with the display progress of the M1 layer.
3. The method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 2, is characterized in that: the M2 layer display area has height a and total length b, and is divided into 4 sections of progress intervals which are mutually spaced.
4. Root of herbaceous plantThe method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 3, is characterized in that: the interval between the first section of progress interval and the second section of progress interval is w1The interval between the second section of progress interval and the third section of progress interval is w2The interval between the third section of progress interval and the fourth section of progress interval is w3
5. The method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 4, wherein the method comprises the following steps: the first to fourth segments of progress intervals are equal in length, and each progress interval represents one fourth of the total oil amount.
6. The method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 5, is characterized in that: the effective length Y of the M1 layer has a value of b-w1-w2-w3When the oil volume percentage is in the first section of progress interval, the display progress of the M1 layer is Y x P; when the percentage of oil is in the second section of the progress interval, the display progress of the M1 layer is w1+ Y + P; when the percentage of oil is in the third section progress interval, the display progress of the M1 layer is w1+w2+ Y + P; when the oil quantity percentage is in the fourth section progress interval, the display progress of the M1 layer is w1+w2+w3+ Y + P; and when the oil quantity percentage is less than or equal to a preset alarm threshold value, the M1 layer displays an early warning color.
7. The method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 5, is characterized in that: the T layer comprises filling treatment of Alpha channels; when the oil mass percentage is smaller than a preset alarm threshold value, the value of the Alpha channel of the T layer is 0; when the oil mass percentage is larger than a preset alarm threshold value, gradually changing the value of the Alpha channel of the T layer into 0-1 for filling treatment;
when the oil mass percentage is in the first section of progress interval, if the oil mass percentage is larger than a preset alarm threshold value, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the percentage of oil is in the second stage of scheduleIn the interval, if the oil quantity percentage is less than or equal to (J +0.25), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w1Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the third section progress interval, if the oil amount percentage is less than or equal to (J +0.5), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w2Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05);
When the oil amount percentage is in the fourth section of progress interval, if the oil amount percentage is less than or equal to (J +0.75), the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)+w3Otherwise, the display progress of the T layer is (b-w)1-w2-w3)/4*(J+0.05)。
8. The method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 2, is characterized in that: the width of the B layer patch increases to the left by w compared with the starting end of the M1 layeraHas a display range of w width increased rightward from the end of the M1 layeraThe display range of (1).
9. The method for realizing the discontinuous gradual display effect of the fuel gauge according to claim 8, wherein: the width of the B-layer paste pattern is 2w at two sides of the tail end of the M1 layeraIn the display range of (2), gradual filling processing with Alpha channel value of 1-0 is adopted; and when the oil mass percentage is less than or equal to a preset alarm threshold value, the layer B displays an early warning color.
10. The method for realizing the discontinuous and gradual display effect of the fuel gauge according to claim 6 or 9, is characterized in that: the pre-warning color is RGB color (255,0, 0).
CN202210063597.9A 2022-01-20 2022-01-20 Method for realizing discontinuous and gradual display effect of fuel gauge Pending CN114441003A (en)

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