CN103707769A - Transparent vehicle-mounted digital instrument controller and display brightness controlling method thereof - Google Patents
Transparent vehicle-mounted digital instrument controller and display brightness controlling method thereof Download PDFInfo
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Abstract
The invention relates to a transparent vehicle-mounted digital instrument controller and a display brightness controlling method of the transparent vehicle-mounted digital instrument controller. According to the transparent vehicle-mounted digital instrument controller and the display brightness controlling method of the transparent vehicle-mounted digital instrument controller, a transparent display screen is used, external light signals are collected through a light detection sensor, light and display brightness corresponding levels are set in the controller, in the use process, by adjusting the display brightness under the current light intensity, the controller can automatically set matching data of the display brightness under different degrees of environment brightness, and a display effect most suitable for a user is achieved. The brightness of a transparent vehicle-mounted digital instrument varies with the external light, so that the visual effect for people is better. By means of the transparent vehicle-mounted digital instrument controller and the display brightness controlling method of the transparent vehicle-mounted digital instrument controller, the visual effect of the transparent liquid crystal instrument under the variation of the environmental light can be optimized, and the visual requirements of different people can be met. The transparent instrument can automatically adjust the display brightness according to the variation of the intensity of the external light, the installation position of the transparent instrument is flexible, and driving sight is not affected even when the transparent instrument is installed in front of a windshield.
Description
Technical field
The present invention relates to a kind of onboard instruments, particularly a kind of transparent vehicle-mounted digital formula instrument controller and method for controlling display brightness thereof.
Background technology
Current auto trade and lighting engineering development are rapidly, more digital product is come into our life, affects deeply us, from current traditional onboard instruments, majority is mechanical type and nontransparent digital instrument, it is usually positioned at bearing circle inner side, when driving, in the time of checking running information, visual angle need to be switched on gauge panel, to traffic safety, bring hidden danger, some full size vehiclees especially, the dish that watches the instruments of often can not bowing during driving.Therefore design and a kind ofly when driver drives vehicle, can guarantee that road vision can see that again the instrument of running information becomes those skilled in the art's problem anxious to be resolved simultaneously.
Summary of the invention
The present invention be directed to traditional onboard instruments and divert one's attention in motion to check inconvenient problem, a kind of transparent vehicle-mounted digital formula instrument controller and method for controlling display brightness thereof are proposed, be used for controlling transparent meter brightness, display interface, when ambient light changes, the brightness of transparent meter dish also changes, make people's visual effect more good, by this method, can optimize transparent liquid crystal instrument and implement the effect under variation at surround lighting, can also there is to different people different comformabilitys.
Technical scheme of the present invention is: a kind of vehicle-mounted digital formula instrument controller, comprise transparent TOLED read-out and controller, the gauge panel of transparent TOLED read-out is completely transparent, can directly be placed in windshield, be used for showing the real time informations such as the speed of a motor vehicle, engine speed.Controller comprises display module, dma controller, microprocessor, key-press module, sound module, optical detection sensor, the power management module of data memory module, transparent TOLED read-out, optical detection sensor gathers after external optical signals is changed by A/D and send microprocessor, microprocessor outputs a control signal to display module, adjust transparent display screen brightness, user inputs regulating command by key-press module and send microprocessor, and signal is adjusted in microprocessor output; In microprocessor, fixed data is stored in data memory module, and microprocessor is connected with extraneous various bus communications by dma controller, and power management module is powered to modules; Microprocessor issues instructions to sound module, and sound module is exported corresponding information.
A vehicle-mounted digital formula instrument controller method for controlling display brightness, comprises vehicle-mounted digital formula instrument controller, specifically comprises the steps:
1) microprocessor is divided into several different stages by fuzzy rule by different ambient light, and microprocessor gathers external optical signals rank of living according to optical detection sensor, corresponds to this other standard display brightness of level;
2) user can adjust the requirement of brightness of display screen according under current ambient light line strength, and increment adjusted in controller record, and record current ambient light line strength; Ambient light line strength and user are adjusted to brightness of display screen as sample, ambient light line strength is as input value, user adjusts the brightness of read-out as desired output, the original display brightness of read-out is initial output valve, and the error of calculation expectation value and initial output valve, judgement input brightness is to be under the jurisdiction of that rank again, and all output threshold values within the scope of this gray scale are adjusted by the weighted value of neural algorithm;
3) when user adjusts again, controller repeating step 2), by sample record in a certain light levels, by increasing of sample, algorithm between input and output also will change according to the curve that produces that records different value, at this moment all outputs except sample in this level range, all will change according to new algorithm;
4) user, in different light situation, repeatedly sets after sample value, and controller can go out the most applicable user's displaying scheme according to study repeatedly and evolution automatic adjusting.
Described step 2) adjustment algorithm is as follows:
I. ambient light line strength is divided into n level, establishing m is current ambient light line strength rank, and Tm is the original display brightness of read-out corresponding to this rank, and T is the brightness of display screen under this rank ambient light line strength of user's expectation, and Y is the brightness of read-out actual displayed;
Ii. user is when extraneous light intensity rank is m, and user expects the poor of brightness and original brightness:
Iii. by membership function to the data in domain, carry out data evaluation, take family and change that within the scope of this gray scale, to take the value degree of membership that this user was changed be 1, both sides degree of membership reduces according to cosine function;
Get degree of membership
i=1,2 ..., n
N is the total progression of light luminance, progression corresponding to light luminance when m is artificial adjustment display brightness;
Iv. calculate by other increment of output brightness level corresponding to membership function:
V. original brightness has been added to degree of membership, as final liquid crystal display display brightness, has been stored in controller,
Have
wherein
.
Beneficial effect of the present invention is: the present invention's transparent vehicle-mounted digital formula instrument controller and method for controlling display brightness thereof.Transparent meter can be adjusted display brightness automatically according to the variation of extraneous light power, and installation site is flexible, even also do not affect driving sight before being arranged on Windshield.
Accompanying drawing explanation
Fig. 1 is the transparent vehicle-mounted digital formula of the present invention instrument controller structured flowchart;
Fig. 2 is the transparent vehicle-mounted digital formula of the present invention instrument method for controlling display brightness schematic diagram;
Fig. 3 is the transparent vehicle-mounted digital formula instrument controller of the present invention interface schematic diagram.
The specific embodiment
Transparent vehicle-mounted digital formula instrument controller structured flowchart as shown in Figure 1, transparent TOLED read-out and controller; The gauge panel of transparent TOLED read-out is completely transparent, can directly be placed in windshield, for showing the real time informations such as the speed of a motor vehicle, engine speed.Controller comprises the display module of data memory module, transparent TOLED read-out, dma controller, microprocessor, key-press module, sound module, optical detection sensor, power management module.Optical detection sensor gathers after external optical signals is changed by A/D and send microprocessor, by data query table, outputs a control signal to display module, automatically adjusts transparent display screen brightness, reaches best penetration ratio and display effect; When user thinks that transparent display screen brightness is improper, can carry out manual regulation by button, the value that under microprocessor records, user sets can be made change according to rule when exporting next time; In microprocessor, fixed data is stored in data memory module, and microprocessor is connected with extraneous various bus communications by dma controller, and power management module is powered to modules; The different instruction that sound module output can be sent according to microprocessor, points out different information, as alarm message, is being provided with on the car of radar and navigation, can be used for prompting navigation information and radar information.
Wherein, the function of certainly adjusting display brightness, user can be closed in function setting interface, also can pass through manual regulation, controls the brightness of liquid crystal display.User can arrange the threshold values of adjusting in function setting, this function can be so that user be after regulating brightness of display screen, all data in its form can change by a series of algorithm, for example, user lightens current brightness, all data in form all will increase by algorithm, when light changes, the brightness of its automatic adjusting also will brighten thereupon or is dimmed, this technology can be so that read-out be when different people is used, can be according to different people the adaptation custom to brightness, the different displaying scheme of adjusting out.
Display brightness is adjusted and is also comprised neural network algorithm, FUZZY ALGORITHMS FOR CONTROL and adaptive algorithm, the method can be adjusted display brightness automatically to meet the visual effect of different user under different external light intensities, the embodiment of the method is, first by fuzzy rule, different ambient light line strengths are divided into several different stages, under certain one-level Illumination intensity environment, if user is unsatisfied with current brightness of display screen, can manually adjust by the button on panel, the correction that this Time Controller can record ambient light line strength and user adjusts brightness of display screen is as sample, using ambient light line strength as input value, the brightness of display screen that user adjusts is as desired output, the original display brightness of read-out is initial output valve, calculate the error of expectation value and initial output valve, judgement input brightness is to be under the jurisdiction of that rank again, all output threshold values within the scope of this gray scale are adjusted by the weighted value of neural network algorithm.When user's discovery next time display brightness is again improper, when adjusting, controller can repeat aforesaid operations again, by sample record in a certain light levels, by increasing of sample, algorithm between input and output also will change according to the curve that produces that records different value, and the at this moment all outputs except sample in this level range, all will change according to new algorithm.By that analogy, user, in different light situation, repeatedly sets after sample value, and controller can go out the most applicable user's displaying scheme according to study repeatedly and evolution automatic adjusting.
By setting up fuzzy rule base, different ambient light intensity levels can be divided into several zoness of different, for example, can be divided into 7 regions, be respectively " very dark ", " secretly ", " darker ", " normally ", " brighter ", " bright ", " very bright ".Set rule: obtain current extraneous light intensity R, determine the rank m that this light intensity is corresponding.So can try to achieve membership function p, secondly, according in T and p and current demonstration correction, calculate the not correction of correspondence at the same level, and revise the display brightness value under all ranks.When the external light intensity of instrument face plate in appropriate level is, read-out shows brightness corresponding to the display brightness rank with new.
Be illustrated in figure 2 transparent vehicle-mounted digital formula instrument method for controlling display brightness schematic diagram, the calculation procedure of method for controlling display brightness is as follows:
1) ambient light line strength is divided into n level, if m is current ambient light line strength rank, Tm is the original display brightness of read-out corresponding to this rank, and T is the brightness of display screen under this rank ambient light line strength of user's expectation, and Y is the brightness of read-out actual displayed;
2) user is when extraneous light intensity rank is m, and user expects the poor of brightness and original brightness
3) by membership function to the data in domain, carry out data evaluation, take family and change that within the scope of this gray scale, to take the value degree of membership that this user was changed be 1, both sides degree of membership reduces according to cosine function;
Get degree of membership
i=1,2 ..., n
N is the total progression of light luminance, progression corresponding to light luminance when m is artificial adjustment display brightness.
4) calculate by other increment of output brightness level corresponding to membership function:
5) original brightness has been added to degree of membership, as final liquid crystal display display brightness, be stored in controller
Have
wherein
.
The peripheral interface that this controller has has, analog signal interface, and impulse singla interface, ordinary numbers signaling interface, for connecing various kinds of sensors.
This controller has data memory module, deposits some vehicle loss information and driving recording information etc. for vehicle operating after stopping.
In microprocessor, control program has data processor, be used for the data transfer of sensor various types of signal and carry out a series of optimization, for the data of accepting, first carry out digital filter, reject the data that some interfering signals produce, to filtered data, carry out data-optimized.Transparent vehicle-mounted digital formula instrument controller interface schematic diagram as shown in Figure 3.
In microprocessor, control program has priority partition program, for dividing the priority of various types of signal, dissimilar signal is divided into different sampling periods, display cycle.This module is divided into three major types by data: alerting signal; As mailbox temperature alarming, some can cause the signal of automotive safety hidden danger tire pressure warning etc., and this class signal has the highest display priority in system.Live signal; As speed, engine speed, waits and needs response fast, the signal that change frequency is larger; For this signal, sampling period and display cycle are the shortest, and its priority is only second to alerting signal.Loss signal; Such signal comprises the extent of deterioration of car load all parts, is recorded in storage module after collection, and this acquisition of signal frequency is minimum, and its priority is that system is minimum.The signal of different priorities can carry out the conversion of priority according to threshold values, and for example, loss signal is generally in lowest priority, but when certain parts loss is comparatively serious, surpasses the threshold values that system sets, and now can become the rank of alerting signal.
In microprocessor, control program has display driving software, the switch that this program shows by bus and chip selection signal line control read-out, brightness, and the content that shows of read-out, wherein the content of read-out and parameter configuration are all sent to by bus the change that read-out shows and configures with the form of instruction by module.
In microprocessor, control program has button control program, and this program is that button is pressed for judgement, and read-out is carried out to correct operation.
In microprocessor, control program has a minute process control program, and this program is used for converting made in Great Britain and metric system display speed and some parameters, the switching unit of display that user in use can be real-time.
In microprocessor, control program has zero correction program for reducing the systematic error of instrument, improves accuracy rate.
In microprocessor, control program has the error that temperature compensating program is brought for reducing temperature impact, improves the accuracy and the robustness that show.
Claims (3)
1. a vehicle-mounted digital formula instrument controller, is characterized in that, comprises transparent TOLED read-out and controller, the gauge panel of transparent TOLED read-out is completely transparent, can directly be placed in windshield, for showing the real time informations such as the speed of a motor vehicle, engine speed; Controller comprises display module, dma controller, microprocessor, key-press module, sound module, optical detection sensor, the power management module of data memory module, transparent TOLED read-out, optical detection sensor gathers after external optical signals is changed by A/D and send microprocessor, microprocessor outputs a control signal to display module, adjust transparent display screen brightness, user inputs regulating command by key-press module and send microprocessor, and signal is adjusted in microprocessor output; In microprocessor, fixed data is stored in data memory module, and microprocessor is connected with extraneous various bus communications by dma controller, and power management module is powered to modules; Microprocessor issues instructions to sound module, and sound module is exported corresponding information.
2. a vehicle-mounted digital formula instrument controller method for controlling display brightness, comprises vehicle-mounted digital formula instrument controller, it is characterized in that, specifically comprises the steps:
1) microprocessor is divided into several different stages by fuzzy rule by different ambient light, and microprocessor gathers external optical signals rank of living according to optical detection sensor, corresponds to this other standard display brightness of level;
2) user can adjust the requirement of brightness of display screen according under current ambient light line strength, and increment adjusted in controller record, and record current ambient light line strength; Ambient light line strength and user are adjusted to brightness of display screen as sample, ambient light line strength is as input value, user adjusts the brightness of read-out as desired output, the original display brightness of read-out is initial output valve, and the error of calculation expectation value and initial output valve, judgement input brightness is to be under the jurisdiction of that rank again, and all output threshold values within the scope of this gray scale are adjusted by the weighted value of neural algorithm;
3) when user adjusts again, controller repeating step 2), by sample record in a certain light levels, by increasing of sample, algorithm between input and output also will change according to the curve that produces that records different value, at this moment all outputs except sample in this level range, all will change according to new algorithm;
4) user, in different light situation, repeatedly sets after sample value, and controller can go out the most applicable user's displaying scheme according to study repeatedly and evolution automatic adjusting.
3. vehicle-mounted digital formula instrument controller method for controlling display brightness according to claim 2, is characterized in that described step 2) adjustment algorithm is as follows:
I. ambient light line strength is divided into n level, establishing m is current ambient light line strength rank, and Tm is the original display brightness of read-out corresponding to this rank, and T is the brightness of display screen under this rank ambient light line strength of user's expectation, and Y is the brightness of read-out actual displayed;
Ii. user is when extraneous light intensity rank is m, and user expects the poor of brightness and original brightness:
Iii. by membership function to the data in domain, carry out data evaluation, take family and change that within the scope of this gray scale, to take the value degree of membership that this user was changed be 1, both sides degree of membership reduces according to cosine function;
Get degree of membership
i=1,2 ..., n
N is the total progression of light luminance, progression corresponding to light luminance when m is artificial adjustment display brightness;
Iv. calculate by other increment of output brightness level corresponding to membership function:
V. original brightness has been added to degree of membership, as final liquid crystal display display brightness, has been stored in controller,
Have
wherein
.
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| CN105700345A (en) * | 2016-03-21 | 2016-06-22 | 中国农业大学 | Fuzzy-control-based brightness adaptation method and apparatus, and video projection system |
| CN106356393A (en) * | 2016-10-18 | 2017-01-25 | 深圳市华星光电技术有限公司 | Transparent display panel |
| WO2017012321A1 (en) * | 2015-07-17 | 2017-01-26 | 京东方科技集团股份有限公司 | Display state adjustment method, display state adjustment device and display device |
| CN106809227A (en) * | 2016-09-21 | 2017-06-09 | 比亚迪股份有限公司 | The control system and control method of railroad vehicle and car light |
| CN109070750A (en) * | 2016-04-29 | 2018-12-21 | 戴姆勒股份公司 | The device and method that inner space for controlling the vehicles illuminates |
| WO2019114714A1 (en) * | 2017-12-15 | 2019-06-20 | 蔚来汽车有限公司 | Brightness adjustment method and apparatus for light-emitting component of vehicle-mounted intelligent controller, and device |
| CN113526351A (en) * | 2016-09-20 | 2021-10-22 | 利勃海尔比伯拉赫股份有限公司 | Console and crane |
| CN113903314A (en) * | 2021-10-18 | 2022-01-07 | 安徽亿普拉斯科技有限公司 | Liquid crystal display screen based on microcontroller and having brightness adjusting function |
| CN116340020A (en) * | 2023-02-22 | 2023-06-27 | 重庆蓝鲸智联科技有限公司 | Method for processing intelligent cabin mcu data request |
| CN117095652A (en) * | 2023-10-19 | 2023-11-21 | 长春希达电子技术有限公司 | Device and method for improving display effect of vehicle-mounted display screen under strong light irradiation |
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| CN113903314A (en) * | 2021-10-18 | 2022-01-07 | 安徽亿普拉斯科技有限公司 | Liquid crystal display screen based on microcontroller and having brightness adjusting function |
| CN116340020A (en) * | 2023-02-22 | 2023-06-27 | 重庆蓝鲸智联科技有限公司 | Method for processing intelligent cabin mcu data request |
| CN117095652A (en) * | 2023-10-19 | 2023-11-21 | 长春希达电子技术有限公司 | Device and method for improving display effect of vehicle-mounted display screen under strong light irradiation |
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Application publication date: 20140409 |