CN111845346A - Display optimization method for automobile liquid crystal instrument pointer - Google Patents
Display optimization method for automobile liquid crystal instrument pointer Download PDFInfo
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- CN111845346A CN111845346A CN202010677237.9A CN202010677237A CN111845346A CN 111845346 A CN111845346 A CN 111845346A CN 202010677237 A CN202010677237 A CN 202010677237A CN 111845346 A CN111845346 A CN 111845346A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005457 optimization Methods 0.000 title claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 21
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 4
- 238000013507 mapping Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 12
- 230000001427 coherent effect Effects 0.000 abstract 1
- 238000003745 diagnosis Methods 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/85—Arrangements for transferring vehicle- or driver-related data
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/586—Wired data transfers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Instrument Panels (AREA)
Abstract
The invention provides a display optimization method for an automobile liquid crystal instrument pointer, and relates to the technical field of liquid crystal display. The display optimization method of the automobile liquid crystal instrument pointer comprises the following steps: the fuzzy degree of the pointer under the condition of different speeds is designed in advance through a computer, and the corresponding picture is replaced along with the speed change. The fuzzy optimization method of the automobile liquid crystal instrument pointer achieves a visual coherent effect, the pointer of the liquid crystal instrument is fast and slow in motion, a difference value between an actual value and a target value of the pointer is used as a reference value, the reference value is divided into a plurality of sections, the larger the reference value is, the heavier the fuzzy effect is, the larger the fuzzy range is, the smaller the reference value is, the smaller the fuzzy effect is, the smaller the fuzzy range is, or no fuzzy is generated, a Gauss fuzzy special effect is added to the pointer, and visual smooth feeling is created.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a display optimization method for an automobile liquid crystal instrument pointer.
Background
With the rapid development of the automobile industry, particularly the field of new energy automobiles, the use of liquid crystal automobile instruments is more and more popular, and the liquid crystal automobile instruments are gradually replacing the traditional mechanical instruments. Compared with a mechanical instrument, the liquid crystal instrument has a gorgeous display effect and richer display contents, and the display setting can be adjusted by a user. The instrument pointer as the soul of the instrument can rely on various gorgeous special effects, and the exquisite appearance gives users unparalleled visual enjoyment. The existing liquid crystal instrument pointer uses two operations of path drawing and graph transformation to complete the display effect of the pointer by taking gpu or dcu as a hardware basis.
Compared with the traditional instrument pointer, the existing liquid crystal instrument pointer has a fatal defect that the fluency of the liquid crystal instrument pointer is low. The traditional instrument adopts a stepping motor to drive a pointer body to rotate, and the stepping angle of the conventional stepping motor is one-twelfth, namely, one-twelfth stepping is needed to be completed. Meanwhile, each pulse interval of the stepping motor is only 2 microseconds, which is equivalent to 50 ten thousand frames per second, and the mechanical instrument can achieve absolute smoothness due to high precision and high frame rate. In contrast, the refresh rate of the liquid crystal meter pointer is substantially maintained at 60 frames or less. When the automobile is accelerated or decelerated rapidly, the pointer needs to sweep a large-area dial in a short time, and the pointer is blocked in the visual angle of a user possibly because the refreshing rate of the pointer is not enough, so that poor experience is brought.
In this regard, the mainstream solution is to promote hardware configuration. However, the scheme is very expensive, most of liquid crystal instruments use LCD screens with 60Hz refresh rate, and the liquid crystal instrument screens with high refresh rate need to be replaced firstly in order to solve the Kanton. Meanwhile, a processor with higher main frequency and a memory with higher speed are also needed for high refresh rate, and the whole upgrading of instrument hardware is needed for each frame of the achieved refresh rate, so that the cost is too high.
Disclosure of Invention
The invention aims to provide a display optimization method of an automobile liquid crystal instrument pointer, which achieves a visual smooth effect by adding Gaussian blur to the pointer, wherein the pointer of the liquid crystal instrument moves at a high speed and a low speed, a difference value between an actual value and a target value of the pointer is used as a reference value, the reference value is divided into a plurality of sections, the larger the reference value is, the heavier the blurring effect is, the larger the blurring range is, the smaller the reference value is, the smaller the blurring effect is, the smaller the blurring range is, or no blurring exists.
In order to achieve the purpose, the invention is realized by the following technical scheme: a display optimization method for an automobile liquid crystal instrument pointer comprises the following steps:
s1: the pointer is divided into a plurality of sections according to the length of the pointer, and the fuzzy degree is adjusted to carry out self-adaptive change.
S2: the motion trail of the pointer is fixed and rotates in a fan-shaped area around the liquid crystal instrument panel scanning disc, namely around the circle center, and the fuzzy effect does not need the automobile instrument to spend resources to participate in calculation, and only needs to do mapping work.
S3: and drawing the pointer into Gaussian blur of different levels in advance by using the pointer model as a source graph through PC (personal computer) end software Photoshop to prepare a plurality of pointer blur pictures.
S4: the blurred picture of the pointer slowly becomes thicker as the speed increases.
S5: then, the current movement speed of the pointer is calculated according to the reference value, and the fuzzy pictures with different degrees are selected to cover the original image.
S6: the number spacing on the motormeter is gradually decreased and the color is changed from white to red.
S7: the animation of the numbers is displayed in red, and the alignment lines of the numbers are thickened to 1.2 times the original values.
S8: and making the manufactured pointer picture and the instrument panel into a program, and finishing by using a code.
S9: and connecting the manufactured program with the automobile through the OBD data line by using a computer, and writing the program in the automobile computer.
S10: after the program of the automobile is written, the upgrading system of the automobile instrument is connected with the CAN of the automobile and simultaneously connected with the Ethernet data of the automobile.
S11: the vehicle is driven for a certain distance, and navigation is started to test the automobile instrument and detect whether the navigation speed is consistent with the pointer on the instrument.
S12: after the speeds are consistent, the picture can be used, and the positions where the pictures are placed need to be changed due to inconsistent speeds.
S13: a colored glass mask is added on the surface of the automobile instrument, and the color of the mask is increased.
Further, according to the operation step in S1, a linear velocity that will make the visual sense of stuck is obtained through a large number of experimental observations and theoretical data, and then the current angular velocity of the pointer is calculated according to the reference value, so as to calculate the linear velocity of each segment of the pointer, and the degree of blurring is adjusted to adaptively change based on the linear velocity that makes the visual sense of stuck.
Further, it will be understood that the gaussian calculation by the cpu of the vehicle meter according to the operation procedure in S2 is a very large data processing, and taking the Cortex-a 5 processor as an example, it takes 300ms to perform a gaussian fuzzy calculation.
Further, according to the operation step in S4, the speed of the vehicle increases and becomes faster and faster, but at the time of acceleration, the faster the vehicle speed, the larger the wind resistance, the slower the vehicle speed, and the thicker the line of the pointer is made for accuracy.
Further, it is convenient to write the program inside the computer of the automobile according to the operation step in S8.
Further, according to the operation steps in S10, when the instrument is working normally, different diagnostic messages are sent by using the CAN bus, and a new sub-function is added to the diagnostic messages, so as to select whether to upgrade the CAN bus or the vehicle ethernet
Further, the brown color will be light brown according to the operation procedure in S13.
The invention provides a display optimization method for an automobile liquid crystal instrument pointer. The method has the following beneficial effects: 1) the visual smooth effect is achieved by adding Gaussian blur to the pointer, the pointer of the liquid crystal instrument moves at a high speed and a low speed, the difference value between the actual value and the target value of the pointer is used as a reference value, the reference value is divided into a plurality of sections, the larger the reference value is, the heavier the fuzzy effect is, the larger the fuzzy range is, the smaller the reference value is, the smaller the fuzzy effect is, the smaller the fuzzy range is, or no fuzzy is generated, the Gaussian blur special effect is added to the pointer, and the visual smooth feeling is created; 2) when the instrument works normally, different diagnosis messages are sent by adopting the CAN bus, and a new sub-function mode is added in the diagnosis messages, so that the CAN bus upgrading or the vehicle-mounted Ethernet upgrading is selected, and the operation is convenient; 3) the vehicle-mounted Ethernet is used for upgrading large upgrading data files, and the traditional CAN bus is used for upgrading small upgrading data files, so that the respective advantages of each upgrading mode are exerted under the condition that stable and reliable data transmission is ensured, and the upgrading time is saved as much as possible.
Drawings
FIG. 1 is a flow chart of a display optimization method for an automotive liquid crystal instrument pointer according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a technical solution: a display optimization method for an automobile liquid crystal instrument pointer comprises the following specific implementation steps:
s1: dividing the pointer into a plurality of sections according to the length of the pointer, obtaining a linear velocity which can enable the visual sense to be stuck through a large amount of experimental observation and theoretical data, and then calculating the current angular velocity of the pointer according to a reference value, thereby calculating the linear velocity of each section of the pointer, adjusting the fuzzy degree to perform self-adaptive change and adjusting the fuzzy degree to perform self-adaptive change by taking the linear velocity which can enable the visual sense to be stuck as a standard.
S2: the cpu performs Gaussian calculation, which is a great data processing, taking a Cortex-A5 processor as an example, 300ms of time is needed for performing one-time Gaussian fuzzy calculation, which is very time-wasting, the motion track of the pointer is that the pointer is fixed to rotate around a liquid crystal instrument panel sweeping disc, namely, a sector area rotates around the circle center, the fuzzy effect does not need the automobile instrument to spend resources to participate in calculation, and only the mapping work is needed.
S3: and drawing the pointer into Gaussian blur of different levels in advance by using the pointer model as a source graph through PC (personal computer) end software Photoshop to prepare a plurality of pointer blur pictures.
S4: the fuzzy picture of pointer is along with the increase of speed, and the line of pointer is done slowly and is become thick, and the speed of car increases, and the speed is faster and faster, but in the time of acceleration, the speed of a motor vehicle is faster, and the windage is bigger, and the car speed slows down, and the line of pointer is done more thick for the accuracy.
S5: then, the current movement speed of the pointer is calculated according to the reference value, and the fuzzy pictures with different degrees are selected to cover the original image, so that the pointer indication is smoother when people observe the instrument.
S6: the distance between the numbers on the automobile instrument is gradually reduced, and the color is transited from white to red to remind the driver of the speed.
S7: the animation of the numbers is displayed in red, the alignment lines of the numbers are thickened and increased to 1.2 times of the original numerical value, and the pointer can indicate more accurately and visually more clearly when indicating.
S8: and the manufactured pointer picture and the instrument panel are made into a program, and the program is finished by using the codes, so that the program can be conveniently written into a computer of the automobile.
S9: and connecting the manufactured program with the automobile by using a computer through an OBD (on-board diagnostics) data line, and writing the program into the automobile computer, so that the program on the automobile instrument is changed into the manufactured program, the automobile instrument is compatible with the program, and the stability of the program on the instrument is improved.
S10: after the program of the automobile is written, an upgrading system of an automobile instrument is connected with a CAN of the automobile and simultaneously connected with Ethernet data of the automobile, when the instrument works normally, different diagnosis messages are sent by adopting a CAN bus, a new sub-function mode is added in the diagnosis messages, whether CAN bus upgrading or vehicle-mounted Ethernet upgrading is adopted is selected, different diagnosis messages are sent by adopting the CAN bus, a new sub-function mode is added in the diagnosis messages, whether CAN bus upgrading or vehicle-mounted Ethernet upgrading is adopted is selected, the operation is convenient, large upgrading data files are upgraded by using the vehicle-mounted Ethernet, small upgrading data files are upgraded by using a traditional CAN bus, the respective advantages of each upgrading mode are played under the condition that stable and reliable data transmission is ensured, and the upgrading time is saved as much as possible.
S11: and driving the vehicle for a certain distance, starting navigation, testing the automobile instrument, detecting whether the navigation speed is consistent with a pointer on the instrument, and detecting whether the speed displayed by the automobile instrument is consistent with the navigation speed.
S12: after the speeds are consistent, the liquid crystal instrument can be used, the speeds are inconsistent, the position where the picture is placed needs to be changed, the visual smooth effect is achieved, the speed of the pointer of the liquid crystal instrument is high and low during movement, a difference value between an actual value and a target value of the pointer is used as a reference value, the reference value is divided into a plurality of sections, the larger the reference value is, the heavier the fuzzy effect is, the larger the fuzzy range is, the smaller the reference value is, the smaller the fuzzy effect is, the smaller the fuzzy range is, or no fuzzy exists, a Gauss fuzzy special effect is added to the pointer, and the.
S13: the brown glass mask is added on the surface of the automobile instrument, the color of the mask is increased, the brown belongs to light brown, and the instrument panel can still be seen clearly under the condition of strong light.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (5)
1. A display optimization method for an automobile liquid crystal instrument pointer is characterized by comprising the following steps: the method comprises the following steps:
s1: dividing the pointer into a plurality of sections according to the length of the pointer, and adjusting the fuzzy degree to perform self-adaptive change;
s2: the motion trail of the pointer is fixed and rotates in a fan-shaped area around a liquid crystal instrument panel scanning disc, namely around the circle center, and the fuzzy effect does not need the automobile instrument to spend resources to participate in calculation, and only needs to do mapping work;
s3: drawing the pointer into Gaussian blurs of different levels in advance by using a pointer model as a source graph through PC (personal computer) end software Photoshop to prepare a plurality of pointer fuzzy pictures;
s4: the lines of the pointer become thick slowly along with the increase of the speed of the fuzzy picture of the pointer;
s5: then, the current movement speed of the pointer is calculated according to the reference value, and fuzzy pictures with different degrees are selected to cover the original picture;
s6: gradually reducing the number spacing on the automobile instrument, and making the color transition from white to red;
s7: the animation of the numbers is displayed in red, and the alignment lines of the numbers are thickened and increased to 1.2 times of the original numerical value;
s8: making the manufactured pointer picture and the instrument panel into a program, and finishing by using a code;
s9: connecting the manufactured program with the automobile through the OBD data line by using a computer, and writing the program in the automobile computer;
S10: after the program of the automobile is written, connecting an upgrading system of the automobile instrument with a CAN of the automobile and simultaneously connecting with the Ethernet data of the automobile;
s11: driving the vehicle for a certain distance, starting navigation, testing the automobile instrument, and detecting whether the navigation speed is consistent with a pointer on the instrument;
s12: the picture can be used after the speeds are consistent, and the positions where the pictures are placed need to be changed when the speeds are inconsistent;
s13: a colored glass mask is added on the surface of the automobile instrument, and the color of the mask is increased.
2. The display optimization method of the automobile liquid crystal instrument pointer according to claim 1, characterized by comprising the following steps: the angular velocity and linear velocity of the pointer in S1 will be calculated according to the operation procedure in S1.
3. The display optimization method of the automobile liquid crystal instrument pointer according to claim 1, characterized by comprising the following steps: the calculation time of one blurring effect in S2 will be 300ms according to the operation step in S2.
4. The display optimization method of the automobile liquid crystal instrument pointer according to claim 1, characterized by comprising the following steps: the code of S8 is stored inside the computer of the automobile according to the operation of S8.
5. The display optimization method of the automobile liquid crystal instrument pointer according to claim 1, characterized by comprising the following steps: the colored glass mask color in S13 will be light brown according to the operation in S13.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677237.9A CN111845346B (en) | 2020-07-14 | 2020-07-14 | Display optimization method for automobile liquid crystal instrument pointer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010677237.9A CN111845346B (en) | 2020-07-14 | 2020-07-14 | Display optimization method for automobile liquid crystal instrument pointer |
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| CN111845346A true CN111845346A (en) | 2020-10-30 |
| CN111845346B CN111845346B (en) | 2023-07-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150849A (en) * | 2015-09-18 | 2015-12-16 | 常熟恒基科技有限公司 | Liquid crystal instrument for new energy vehicle |
| CN107797783A (en) * | 2017-10-25 | 2018-03-13 | 广东欧珀移动通信有限公司 | Control method, control device and computer-readable recording medium |
| US20180108117A1 (en) * | 2016-10-14 | 2018-04-19 | Yazaki Corporation | Display device |
| JP2018124119A (en) * | 2017-01-31 | 2018-08-09 | 矢崎総業株式会社 | Display device |
| CN109326255A (en) * | 2018-11-07 | 2019-02-12 | 苏州佳世达电通有限公司 | Adjust the display methods and display system of dynamic fuzzy |
| CN109849668A (en) * | 2019-02-20 | 2019-06-07 | 上海伟世通汽车电子***有限公司 | A kind of speed display methods of liquid crystal instrument for automobile |
-
2020
- 2020-07-14 CN CN202010677237.9A patent/CN111845346B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150849A (en) * | 2015-09-18 | 2015-12-16 | 常熟恒基科技有限公司 | Liquid crystal instrument for new energy vehicle |
| US20180108117A1 (en) * | 2016-10-14 | 2018-04-19 | Yazaki Corporation | Display device |
| JP2018124119A (en) * | 2017-01-31 | 2018-08-09 | 矢崎総業株式会社 | Display device |
| CN107797783A (en) * | 2017-10-25 | 2018-03-13 | 广东欧珀移动通信有限公司 | Control method, control device and computer-readable recording medium |
| CN109326255A (en) * | 2018-11-07 | 2019-02-12 | 苏州佳世达电通有限公司 | Adjust the display methods and display system of dynamic fuzzy |
| CN109849668A (en) * | 2019-02-20 | 2019-06-07 | 上海伟世通汽车电子***有限公司 | A kind of speed display methods of liquid crystal instrument for automobile |
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