CN103134941A - Smooth processing method of rotation of indicator of displaying instrument panel - Google Patents
Smooth processing method of rotation of indicator of displaying instrument panel Download PDFInfo
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- CN103134941A CN103134941A CN2013100369064A CN201310036906A CN103134941A CN 103134941 A CN103134941 A CN 103134941A CN 2013100369064 A CN2013100369064 A CN 2013100369064A CN 201310036906 A CN201310036906 A CN 201310036906A CN 103134941 A CN103134941 A CN 103134941A
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Abstract
The invention discloses a processing method of smooth rotation of an indicator of a displaying instrument panel. The instrument panel equipment is initialized at first, a speed scale disc is drawn and the indicator is rotated, data are sent to the displaying instrument panel periodically through a speed device, a displaying instrument panel processor analyzes speed data received at present, converts the speed data into radian data corresponding to speed values on the speed scale disc, and assigns the radian data to radian variables, the included angle between every two adjacent indication display positions of the instrument panel is divided into a plurality of conditions, a complex rate of smooth processing is set, a linear variation value array indicated by the speed indicator is calculated according to a former radian value, a present radian value and an added liner variation value between two radians, and therefore through the instrument panel equipment, the speed indicator of the corresponding radian liner variation values in an radian interval is drawn in an increasing or decreasing mode. The processing method of the smooth rotation of the indicator of the displaying instrument panel is good in real-time displaying performance, high in accuracy, friendly in interface, strong in intuition, high in reliability, low in cost, free of limitation of software, strong in transportability, wide in application, and capable of being applied to various fields of displaying instrument panels.
Description
Technical field
The present invention relates to a kind of display technique of liquid crystal display panel board pointer, specifically relate to the smoothing processing method that a kind of panel board pointer rotates.
Background technology
The data that panel board pointer in existing liquid crystal display receives according to the outside show points to the position.Display is a kind of display terminal of Data-Link system and device, can show position, orientation, speed and the height etc. of this device and same device medium is installed with respect to the position of this device on every side.Speed refers to vertical speed, shows with the panel board on display and pointer, is divided into ascending velocity and decline rate.Ascending velocity shows by upper semi-circle, and decline rate is shown by lower semi-circular.The panel board scale is the probability distribution that occurs according to data, two parameters of the current display position of pointer and next display position, the different radians of the corresponding panel board of these two parameters.Pointer turns to another position from a position, and when not doing smoothing processing, that sees is shown as pointer moment in next position display, can see the movement of pointer in display.When two adjacent datas are poor be converted to radian after, the redirect at once of pointer makes picture look and seems stiff, can not distinguish pointer and clockwise rotate or rotate counterclockwise next position.
Summary of the invention
Goal of the invention of the present invention is to show for the pointer of existing display instrument panel to process, and allows pointer according to the radian size, determines the position that translational speed was pointed to from last position movement to current data smoothly, and more convergence moves slower.
In order to achieve the above object, the present invention adopts following technical scheme:
The smoothing processing method that the Displaying Meter index rotates is characterized in that, comprises the steps:
1, the smoothing processing method of Displaying Meter index rotation, is characterized in that, comprises the steps:
At first the first step, panel board carry out device initialize, and render speed index dial and rotary indicator, and the panel board scale is the probability distribution that occurs according to data;
Second step, the Negotiation speed device cycle sends data to display instrument panel, and display instrument panel processor CPU periodically reads current data and preserves by RS422 interface and display instrument panel interface;
The 3rd step, resolve the current speed data that receives and be converted into the radian data of velocity amplitude on the corresponding speed index dial, and assignment is to the radian variable, the angle of adjacent two the pointer display positions of panel board is divided into some situations, pass through again the absolute value of the difference of radian variate-value and the radian variate-value of the last cycle of operation, changing value between two adjacent arcs degrees of data that interpolation panel board equipment receives makes the data between two adjacent radians full;
The 4th step, according to the linear change value between two radians of a upper radian value, current radian value and interpolation, and calculate the linear change value array of speed indicator indication radian, accordingly by panel board equipment, in drafting this section radian interval, increasing or decreasing ground the speed indicator of corresponding radian linear change value.
Draw in described the 4th step in this section radian interval the speed indicator of corresponding radian linear change value following situation is arranged:
When a) unchanged, pointer refers at 0 scale;
When b) positive change being arranged, pointer clockwise rotates, and the turned position is no more than upper semi-circle 6 scale positions;
When c) having negative sense to change, pointer rotates counterclockwise, and the turned position is no more than lower semi-circular 6 scale positions;
When d) the positive change amount increases, if current pointer refers to that pointer clockwise rotates at upper semi-circle at the upper semi-circle arbitrary scale; If current pointer refers to that pointer clockwise rotates upper semi-circle from lower semi-circular at the lower semi-circular arbitrary scale; Be no more than upper semi-circle 6 scale positions;
When e) the positive change amount reduces, if current pointer refers to that pointer rotates counterclockwise at upper semi-circle at the upper semi-circle arbitrary scale, be no more than 0 scale position; If current pointer refers to that pointer clockwise rotates upper semi-circle from lower semi-circular at the lower semi-circular arbitrary scale;
When f) the negative sense variable quantity increases, if current pointer refers to that pointer rotates counterclockwise in lower semi-circular at the lower semi-circular arbitrary scale; If current pointer refers to that pointer rotates counterclockwise lower semi-circular from upper semi-circle at the upper semi-circle arbitrary scale; Be no more than lower semi-circular 6 scale positions;
When g) the negative sense variable quantity reduces, if current pointer refers to that pointer clockwise rotates in lower semi-circular at the lower semi-circular arbitrary scale, be no more than 0 scale position; If current pointer refers to that pointer rotates counterclockwise lower semi-circular from upper semi-circle at the upper semi-circle arbitrary scale.
In described the 3rd step, the radian variable is:
If the absolute value of the difference of the radian variate-value of radian variate-value and the last cycle of operation is greater than 1.8 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.2 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last variate-value deducts 0.2 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 1.2 less than 1.8 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.1 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.1 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 0.8 less than 1.2 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.02 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.02 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 0.3 less than 0.8 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.01 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.01 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 0.008 less than 0.3 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.003 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.003 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value was less than 0.008 o'clock, current radian variate-value assignment is given last radian variate-value.Pointer on screen showed by last radian variate-value decision
The present invention's demonstration property in real time is good, and accuracy is higher, friendly interface, and intuitive is strong, and reliability is high, and cost is low, is not subjected to software limitations, and is portable strong, and the property used is wider, can apply to kinds of displays instrument field.Therefore, practicality is better, is easy to apply, and has larger practical value.
Description of drawings
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 be radian poor be the dial plate pointer schematic diagram of 0 o'clock;
Fig. 2 be radian poor be the dial plate pointer schematic diagram of 2 π/3 o'clock;
Fig. 3 is that radian is poor from the 0 pointer schematic diagram that is changed to the level and smooth rotation process of 2 π/3 o'clock;
Fig. 4 is the FB(flow block) that software is processed.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As next example explanation data from unchanged when changing, the change procedure of radian variable.State when being exemplified as the increase of positive change amount, display instrument panel receives speed data altogether 4 times, and velocity amplitude is converted into corresponding radian value, and the corresponding different complexities of the poor absolute value of adjacent radian are carried out the radian change process, the radian original state is 0, and is as shown in table 1.
Table 1 radian variable change process
Referring to Fig. 1, when the data that receive in the present invention were unchanged, pointer referred in scale 0 position.When the data that receive had constant variation, according to variable quantity, pointer referred in fixing scale position, as Fig. 2.When data from unchanged when changing, a level and smooth process of rotating is arranged, as Fig. 3.
Claims (3)
1. the smoothing processing method of Displaying Meter index rotation, is characterized in that, comprises the steps:
At first the first step, panel board carry out device initialize, and render speed index dial and rotary indicator, and the panel board scale is the probability distribution that occurs according to data;
Second step, the Negotiation speed device cycle sends data to display instrument panel, and display instrument panel processor CPU periodically reads current data and preserves by RS422 interface and display instrument panel interface;
The 3rd step, resolve the current speed data that receives and be converted into the radian data of velocity amplitude on the corresponding speed index dial, and assignment is to the radian variable, the angle of adjacent two the pointer display positions of panel board is divided into some situations, pass through again the absolute value of the difference of radian variate-value and the radian variate-value of the last cycle of operation, changing value between two adjacent arcs degrees of data that interpolation panel board equipment receives makes the data between two adjacent radians full;
The 4th step, according to the linear change value between two radians of a upper radian value, current radian value and interpolation, and calculate the linear change value array of speed indicator indication radian, accordingly by panel board equipment, in drafting this section radian interval, increasing or decreasing ground the speed indicator of corresponding radian linear change value.
2. the smoothing processing method that rotates of Displaying Meter index according to claim 1, is characterized in that, draw in described the 4th step in this section radian interval the speed indicator of corresponding radian linear change value following situation is arranged:
When a) unchanged, pointer refers at 0 scale;
When b) positive change being arranged, pointer clockwise rotates, and the turned position is no more than upper semi-circle 6 scale positions;
When c) having negative sense to change, pointer rotates counterclockwise, and the turned position is no more than lower semi-circular 6 scale positions;
When d) the positive change amount increases, if current pointer refers to that pointer clockwise rotates at upper semi-circle at the upper semi-circle arbitrary scale; If current pointer refers to that pointer clockwise rotates upper semi-circle from lower semi-circular at the lower semi-circular arbitrary scale; Be no more than upper semi-circle 6 scale positions;
When e) the positive change amount reduces, if current pointer refers to that pointer rotates counterclockwise at upper semi-circle at the upper semi-circle arbitrary scale, be no more than 0 scale position; If current pointer refers to that pointer clockwise rotates upper semi-circle from lower semi-circular at the lower semi-circular arbitrary scale;
When f) the negative sense variable quantity increases, if current pointer refers to that pointer rotates counterclockwise in lower semi-circular at the lower semi-circular arbitrary scale; If current pointer refers to that pointer rotates counterclockwise lower semi-circular from upper semi-circle at the upper semi-circle arbitrary scale; Be no more than lower semi-circular 6 scale positions;
When g) the negative sense variable quantity reduces, if current pointer refers to that pointer clockwise rotates in lower semi-circular at the lower semi-circular arbitrary scale, be no more than 0 scale position; If current pointer refers to that pointer rotates counterclockwise lower semi-circular from upper semi-circle at the upper semi-circle arbitrary scale.
3. the smoothing processing method that rotates of Displaying Meter index according to claim 1 is characterized in that in described the 3rd step, the radian variable is:
If the absolute value of the difference of the radian variate-value of radian variate-value and the last cycle of operation is greater than 1.8 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.2 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last variate-value deducts 0.2 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 1.2 less than 1.8 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.1 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.1 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 0.8 less than 1.2 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.02 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.02 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 0.3 less than 0.8 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.01 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.01 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value greater than 0.008 less than 0.3 o'clock, if the radian variate-value greater than last radian variate-value, last radian variate-value increases by 0.003 in each cycle of operation; If the radian variate-value is less than last radian variate-value, last radian variate-value deducts 0.003 in each cycle of operation;
If the absolute value of the difference of radian variate-value and last radian variate-value was less than 0.008 o'clock, current radian variate-value assignment is given last radian variate-value.
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| CN201310036906.4A CN103134941B (en) | 2013-01-31 | 2013-01-31 | The smoothing processing method of display instrument panel indicators turn |
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| CN201310036906.4A CN103134941B (en) | 2013-01-31 | 2013-01-31 | The smoothing processing method of display instrument panel indicators turn |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470063A (en) * | 2018-03-26 | 2018-08-31 | 四川斐讯信息技术有限公司 | A kind of method and system of data processing under big data Visual Scene |
| CN109189520A (en) * | 2018-07-27 | 2019-01-11 | 浙江中科领航汽车电子有限公司 | A kind of method and system for realizing automobile meter pointer smooth pivotal based on QML animation attributes |
| CN112116678A (en) * | 2020-08-09 | 2020-12-22 | 东风电驱动系统有限公司 | Irregular virtual pointer display method for liquid crystal instrument and liquid crystal instrument |
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| CN86108239A (en) * | 1985-12-18 | 1987-09-30 | 蒸气公司 | Vehicle autometer with acceleration and deceleration indicating device |
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| CN86108239A (en) * | 1985-12-18 | 1987-09-30 | 蒸气公司 | Vehicle autometer with acceleration and deceleration indicating device |
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| CN2704024Y (en) * | 2003-09-01 | 2005-06-08 | 刘忠宪 | Solid electronic instrument using indicator-shape cursor to substitute moving indicator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108470063A (en) * | 2018-03-26 | 2018-08-31 | 四川斐讯信息技术有限公司 | A kind of method and system of data processing under big data Visual Scene |
| CN109189520A (en) * | 2018-07-27 | 2019-01-11 | 浙江中科领航汽车电子有限公司 | A kind of method and system for realizing automobile meter pointer smooth pivotal based on QML animation attributes |
| CN112116678A (en) * | 2020-08-09 | 2020-12-22 | 东风电驱动系统有限公司 | Irregular virtual pointer display method for liquid crystal instrument and liquid crystal instrument |
| CN112116678B (en) * | 2020-08-09 | 2023-08-22 | 东风电驱动系统有限公司 | Irregular virtual pointer display method of liquid crystal instrument and liquid crystal instrument |
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