CN114428538B - Industrial tablet computer capable of automatically adjusting brightness - Google Patents
Industrial tablet computer capable of automatically adjusting brightness Download PDFInfo
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Abstract
The invention relates to the technical field of industrial tablet computers, in particular to an industrial tablet computer capable of automatically adjusting brightness. The industrial tablet personal computer is internally provided with a sensor module which is arranged at the upper end of a screen of the industrial tablet personal computer and is connected with the central control module, and the sensor module converts an optical signal into an electric signal and is used for detecting the ambient brightness and transmitting the electric signal to the central control module for processing; the central control module is respectively connected with one end of the sensor module and one end of the display module, is used for receiving the electric signals sent by the sensor module and is used for adjusting corresponding values according to the electric signals measured by the sensor module so as to enable the display brightness to meet the standard; and the display module is connected with one end of the central control module and used for receiving the electric signal sent by the central control module so as to lighten the display screen of the industrial tablet computer. The functions of the industrial tablet computer are increased, the construction errors caused by illumination are reduced, and the use efficiency of the industrial tablet computer body is improved.
Description
Technical Field
The invention relates to the technical field of industrial tablet computers, in particular to an industrial tablet computer capable of automatically adjusting brightness.
Background
The industrial tablet computer is an industrial control computer specially used in the industry, and the basic performance and compatibility of the industrial tablet computer are almost the same as those of a commercial computer, but the industrial tablet computer focuses more on the safety and stability under different environments, and provides an optimal solution for controlling a human-computer interface and a production flow. The front panel of the industrial tablet personal computer is mostly formed by aluminum-magnesium alloy in a die-casting mode, and is firm, durable, light in weight, small in size, simple and convenient to install and maintain, attractive in appearance and wide in application. The industrial tablet computer is different from a common commercial computer, and has the characteristics of firmness, shock resistance, moisture resistance, dust resistance, high-temperature resistance, multiple slots, easiness in expansion and the like according to the environmental characteristics. Is the best platform for other various applications in various industrial control, traffic control, environmental control and automation fields. Industrial tablet computers are mostly used in the industry, and often have to operate in special environments or start up uninterruptedly for a long time, for example, automation equipment of production lines, data switches of telecommunication rooms, monitoring equipment, network security servers of enterprises, navigation systems and the like, and have to operate continuously and stably for a long time without interrupting the computer-down, otherwise, huge loss is caused, and strict requirements are imposed on computer systems used.
Chinese patent publication no: CN 202022728685.5. An industrial tablet computer that can operate in harsh environments is disclosed. It can be seen that the following problems exist: the existing technology for adjusting the brightness of the industrial tablet personal computer is still immature, and the adjustment is complex, so that the outdoor use efficiency of the industrial tablet personal computer is influenced.
Disclosure of Invention
Therefore, the invention provides an industrial tablet computer capable of automatically adjusting brightness, which is used for solving the problem of low use efficiency caused by the fact that the industrial tablet computer cannot be quickly adapted to the ambient brightness to output image information corresponding to the brightness in the prior art.
In order to achieve the above object, the present invention provides an industrial tablet computer capable of automatically adjusting brightness, comprising: a sensor module, a display module and a central control module,
the sensor module is arranged at the upper end of the display screen of the industrial tablet computer and connected with the central control module, and adopts a photoelectric element as a detection element for detecting the brightness of the environment where the industrial tablet computer is located;
the central control module is respectively connected with one end of the sensor module and one end of the display module, and is used for receiving the electric signal sent by the sensor module and adjusting the display brightness of the display module to a corresponding value according to the electric signal measured by the sensor module so as to enable the display brightness to meet the standard; the central control module adjusts the display brightness of the display module to a corresponding value when judging that the ambient brightness does not meet the standard, and judges whether to perform contrast processing on the image displayed by the display module when the display brightness is adjusted to a critical value;
the display module is connected with one end of the central control module and used for receiving the electric signal sent by the central control module so as to output corresponding image information.
Further, the central control module is provided with a preset environment brightness S0, when the industrial tablet computer runs, the central control module controls the sensor module to acquire the brightness S of the environment where the industrial tablet computer is located and compares the brightness S with the brightness S0 to determine whether the brightness of the environment where the industrial tablet computer is located meets the standard,
if S = S0, the central control module determines that the brightness of the environment where the industrial tablet computer is located meets the standard, and the central control module does not adjust the display brightness of the display module;
if S is not equal to S0, the central control module preliminarily judges that the brightness of the environment where the industrial tablet computer is located does not meet the standard, calculates an environment brightness difference value delta S and determines the adjusting magnification of the display brightness of the display module according to the environment brightness difference value delta S.
Further, the central control module is further provided with a first preset brightness difference value Δ S1, a second preset brightness difference value Δ S2, a first preset brightness adjustment magnification factor α 1 and a second preset brightness adjustment magnification factor α 2, wherein Δ S1 < [ Δ S2 ], α 2 < α 1 < 1, when the central control module preliminarily determines that the brightness of the environment where the industrial tablet computer is located does not meet the standard, if S > S0, Δ S = S-S0 is set, if S < S0, Δ S = S0-S is set,
if the delta S is less than or equal to the delta S1, the central control module judges that the brightness is not adjusted;
if the delta S is more than delta S1 and less than or equal to delta S2, the central control module judges that the display brightness of the display module is adjusted by using a first preset brightness adjusting multiplying factor alpha 1;
if the delta S is larger than the delta S2, the central control module judges that the display brightness of the display module is adjusted by using a second preset brightness adjusting multiplying factor alpha 2;
when the central control module determines that the display brightness of the display module is adjusted by using the i-th preset brightness adjustment magnification α i, i =1, 2 is set, the central control module records the adjusted display brightness of the display module as L ', if S > S0, L ' = L × (2- α i) is set, and if S < S0, L ' = L × α i is set.
Further, the central control module is provided with a first preset artificial brightness S1, a second preset artificial brightness S2, a first preset ambient brightness correction coefficient e1 and a second preset ambient brightness correction coefficient e2, wherein S1 is less than S2, 0.7 is less than e1 and less than 1 is less than e2 and less than 1.4, the central control module judges whether the preset ambient brightness S0 is corrected according to S when the industrial tablet computer is in the artificial light environment,
if S is not more than S1, the central control module judges that the environment is a low-light environment and corrects the preset environment brightness S0 by using e 1;
if S1 is larger than S2, the central control module judges that the environment is a proper illumination environment and does not modify the preset environment brightness;
if S is more than S2, the central control module judges that the environment is a strong light environment and corrects the preset environment brightness by using e 2;
when the central control module determines to adjust the ambient brightness by using the j-th preset artificial brightness ej, setting j =1, 2, and the central control module records the corrected preset ambient brightness as S0 ', and sets S0' = S0 × ej.
Further, the central control module is provided with a first preset wavelength C1, a second preset wavelength C2, a third preset wavelength C3, a first preset brightness correction coefficient β 1, a second preset brightness correction coefficient β 2, and a third preset brightness correction coefficient β 3, wherein C1 is more than C2 and more than C3, β 1 is more than β 2 and more than 1 and more than β 3, the central control module corrects the brightness adjustment magnification according to the actual wavelength C during the adjustment process,
if C is less than or equal to C1, the central control module judges that the color of the image information displayed by the industrial tablet computer is too dim and corrects the display brightness adjusted by the industrial tablet computer by using beta 3;
if C is more than C1 and less than or equal to C2, the central control module judges that the color brightness of the image information displayed by the industrial tablet computer meets the standard and does not correct the display brightness of the display module of the industrial tablet computer;
if C is more than C2 and less than or equal to C3, the central control module judges that the color of the image information displayed by the industrial tablet computer is dazzling and corrects the display brightness of the display module adjusted by the industrial tablet computer by using beta 2;
if C is more than C3, the central control module judges that the color of the image information displayed by the industrial tablet computer is too dazzling and corrects the display brightness of the display module adjusted by the industrial tablet computer by using beta 1;
when the central control module determines that the adjusted display brightness of the display module is adjusted by using the kth preset ambient brightness β k, k =1, 2 is set, the central control module records the display brightness of the display module after being corrected as L ", and L" = L' × β k is set.
Furthermore, the central control module is provided with a maximum brightness value Lmax and a minimum brightness value Lmin, when the central control module judges that the brightness of the display module needs to be adjusted to L ', the central control module judges whether to adjust the color temperature and the contrast of an image output by the display module according to L',
if L is less than or equal to Lmin, the central control module judges that the display brightness of the display module is too low, adjusts the display brightness of the display module to Lmin and adjusts the color temperature of an image output by the display module to be warm;
if Lmin is larger than L and smaller than or equal to Lmax, the central control module judges that the display brightness of the display module is moderate and does not adjust the color temperature or the contrast of an image output by the display module;
if L 'is larger than Lmax, the central control module judges that the display brightness of the display module is too high, adjusts the display brightness of the display module to Lmax, calculates the actual critical brightness difference value DeltaL, adjusts the contrast of the image output by the display module to a corresponding value according to DeltaL, and sets DeltaL = L' -Lmax.
Furthermore, the central control module is provided with a first preset critical brightness difference delta L1, a second preset critical brightness difference delta L2, a contrast first adjusting parameter r1 and a contrast second adjusting parameter r2, wherein delta L1 is less than delta L2, 1.05 is less than r1 is less than r2 is less than 1.2, the contrast is corrected according to the critical brightness difference,
if the delta L is less than or equal to the delta L1, the central control module judges that the actual critical brightness difference value is within a preset range and does not adjust the contrast of the image output by the display module;
if the delta L1 is less than or equal to the delta L2, the central control module judges that the actual critical brightness difference is small, and adjusts the contrast of an output image of the display module by using a contrast first adjusting parameter r 1;
if DeltaL >. DELTA L2, the central control module judges that the actual critical brightness difference is large, and adjusts the contrast of the image output by the display module by using a second contrast adjustment parameter r 2;
when the central control module determines to adjust the contrast of the output image of the display module by using the ith adjustment parameter rx, setting x =1, 2, setting the initial contrast B of the display module, and setting B '= B × rx by the central control module, wherein the corrected contrast of the display module is recorded as B'.
Further, the central control module is provided with a power consumption critical value Vmax, and periodically detects the power consumption V of the industrial tablet computer when the central control module completes the adjustment of the vector diagram of the display module,
if V is larger than Vmax, the central control module judges that the power consumption is too high and reduces the display brightness of the display module;
and if the V is less than or equal to the Vmax, the central control module judges that the power consumption meets the standard and does not adjust the display brightness of the display module.
Further, the sensor module is an illuminance sensor for detecting the ambient brightness of the industrial tablet computer and outputting a corresponding electrical signal to the central control module according to the ambient brightness.
Further, the display module is used for receiving the electric signal output by the central control module and processed by judgment and outputting image information with different brightness according to the electric signal.
Compared with the prior art, the industrial tablet computer has the advantages that the display brightness of the display module can be adjusted to the corresponding value according to the ambient brightness measured by the sensor module by arranging the central control module, meanwhile, the central control module corrects the preset ambient brightness according to whether the ambient light source is artificial light or not, and adjusts the contrast of the image output by the display module according to whether the adjusted brightness reaches the critical value or not, so that the industrial tablet computer can be quickly adapted to different use environments, and image information of the corresponding brightness is output according to the corresponding environments, and the use efficiency of the industrial tablet computer in the different brightness environments is effectively improved.
The central control module is provided with a preset ambient brightness, a first preset brightness difference value, a second preset brightness difference value, a first preset brightness adjusting multiplying factor and a second preset brightness adjusting multiplying factor, the invention can rapidly and preliminarily judge whether the ambient brightness of the industrial tablet computer meets the standard or not by using the preset ambient brightness, and adjust the display brightness of the display module to a corresponding value according to the difference value between the actual brightness and the preset brightness when the ambient brightness does not meet the standard in the preliminary judgment, so that a user can clearly see the image information output by the display module in the corresponding environment, and the use efficiency of the industrial tablet computer is further improved while the adaptability of the industrial tablet computer to different ambient brightness is further improved.
And judging whether the brightness meets the standard or not according to the preset environment brightness and the actual environment brightness, and determining the adjusting magnification of the display brightness according to the environment brightness difference. A supplementary function is added for the industrial tablet computer, and the convenience of using the industrial tablet computer is improved.
Furthermore, a first preset brightness difference value and a second preset brightness difference value are set, a first preset brightness adjusting multiplying power and a second preset brightness adjusting multiplying power are set, the brightness difference values are corrected according to the brightness adjusting multiplying powers, the experience of a user is further improved, and the work efficiency of workers is also improved.
Furthermore, the central control module corrects the preset environment brightness according to the actual environment brightness under the condition of artificial light, wherein the central control module is provided with a first preset artificial brightness, a second preset artificial brightness, a first preset environment brightness correction coefficient and a second preset environment brightness correction coefficient, and judges whether the correction is carried out according to the preset artificial brightness, so that the convenience of using the industrial tablet computer is improved, the experience of a user is further improved, and the efficiency of workers is also improved.
Furthermore, the central control module is provided with an actual wavelength, a first preset wavelength, a second preset wavelength, a third preset wavelength, a first adjusting magnification correction coefficient, a second adjusting magnification correction coefficient and a third adjusting magnification correction coefficient, and in the adjusting process, the central control module corrects the adjusting intensity according to the wavelength of the color displayed on the screen, adjusts the color tone through the brightness change, further protects the eyesight of a user, and improves the experience of the user.
Further, the central control module is provided with a brightness maximum value and a brightness minimum value, whether the color temperature and the contrast are adjusted or not is judged according to the brightness displayed on the screen, if the central control module judges that the display brightness is too high, the brightness of the industrial tablet computer is compared, the central control module is further provided with a first preset critical brightness difference value, a second preset critical brightness difference value and an actual critical brightness difference value, and the central control module is provided with a first contrast regulation parameter and a second contrast regulation parameter, so that the problem that the brightness regulation of the industrial tablet computer needs to be matched with external software is further solved, and the functions of the industrial tablet computer are increased.
Further, well accuse module is equipped with the power consumption critical value to periodic detection power consumption adjusts screen brightness through judging power consumption, has improved industry panel computer's life cycle and convenience, makes user's experience feel further promote, has also improved the efficiency of workman's work very much.
Furthermore, the sensor module is a sensor module which is a illuminance sensor and is used for detecting the ambient brightness, outputting a corresponding electrical signal according to the ambient brightness, and outputting a corresponding power supply to supply power to the display module according to a circuit corresponding to the electrical signal so as to light the display screen of the industrial tablet computer. The display module is used for receiving the electric signals which are judged and processed after the scene from the central control module is changed and displaying different brightness, and the experience of a user is further improved.
Drawings
Fig. 1 is a block diagram of an industrial tablet computer capable of automatically adjusting brightness according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the sensor module is disposed at an upper end of a display screen of the industrial tablet computer and connected to the central control module, and the sensor module uses a photoelectric element as a detection element to detect an ambient brightness of the industrial tablet computer;
as shown in fig. 1, the central control module is connected to one end of the sensor module and one end of the display module, respectively, and is configured to receive the electrical signal sent by the sensor module, and adjust the display brightness of the display module to a corresponding value according to the electrical signal measured by the sensor module, so that the display brightness meets the standard; the central control module adjusts the display brightness of the display module to a corresponding value when judging that the ambient brightness does not meet the standard, and judges whether to perform contrast processing on the image displayed by the display module when the display brightness is adjusted to a critical value;
as shown in fig. 1, the display module is connected to one end of the central control module, and is configured to receive the electrical signal sent by the central control module to output corresponding image information.
As shown in fig. 1, the central control module has a preset environment brightness S0, and when the industrial tablet computer runs, the central control module controls the sensor module to acquire the brightness S of the environment where the industrial tablet computer is located and compares S with S0 to determine whether the brightness of the environment where the industrial tablet computer is located meets the standard,
if S = S0, the central control module determines that the brightness of the environment where the industrial tablet computer is located meets the standard, and the central control module does not adjust the display brightness of the display module;
if S is not equal to S0, the central control module preliminarily judges that the brightness of the environment where the industrial tablet computer is located does not meet the standard, calculates the ambient brightness difference value Delta S and determines the adjusting magnification of the display brightness of the display module according to the ambient brightness difference value Delta S.
As shown in fig. 1, the central control module further has a first preset brightness difference Δ S1, a second preset brightness difference Δ S2, a first preset brightness adjustment magnification α 1, and a second preset brightness adjustment magnification α 2, where Δ S1 is smaller than Δ S2, α 2 is smaller than α 1, and when the central control module preliminarily determines that the brightness of the environment where the industrial tablet computer is located does not meet the standard, Δ S = S-S0 is set if S > S0, Δ S = S0-S is set if S < S0,
if the delta S is less than or equal to the delta S1, the central control module judges that the brightness is not adjusted;
if the delta S is more than delta S1 and less than or equal to delta S2, the central control module judges that the display brightness of the display module is adjusted by using a first preset brightness adjusting multiplying factor alpha 1;
if the delta S is larger than the delta S2, the central control module judges that the display brightness of the display module is adjusted by using a second preset brightness adjusting multiplying factor alpha 2;
when the central control module determines that the display brightness of the display module is adjusted by using the i-th preset brightness adjustment magnification α i, i =1, 2 is set, the central control module records the adjusted display brightness of the display module as L ', if S > S0, L ' = L × (2- α i) is set, and if S < S0, L ' = L × α i is set.
As shown in fig. 1, the central control module is provided with a first preset artificial brightness S1, a second preset artificial brightness S2, a first preset ambient brightness correction coefficient e1, and a second preset ambient brightness correction coefficient e2, wherein S1 is less than S2, 0.7 is less than e1 is less than 1 is less than e2 is less than 1.4, the central control module determines whether to correct the preset ambient brightness S0 according to S when the industrial tablet computer is in the artificial light environment,
if S is not more than S1, the central control module judges that the environment is a low-light environment and corrects the preset environment brightness S0 by using e 1;
if S1 is larger than S2, the central control module judges that the environment is a proper illumination environment and does not modify the preset environment brightness;
if S is more than S2, the central control module judges that the environment is a strong light environment and corrects the preset environment brightness by using e 2;
when the central control module determines to adjust the ambient brightness by using the j-th preset artificial brightness ej, setting j =1, 2, and the central control module records the corrected preset ambient brightness as S0 ', and sets S0' = S0 × ej.
As shown in fig. 1, the central control module has a first preset wavelength C1, a second preset wavelength C2, a third preset wavelength C3, a first preset brightness correction coefficient β 1, a second preset brightness correction coefficient β 2, and a third preset brightness correction coefficient β 3, where C1 is greater than C2 and less than C3, β 1 is greater than β 2 and less than 1 and less than β 3, and corrects the brightness adjustment magnification according to the actual wavelength C during the adjustment process,
if C is less than or equal to C1, the central control module judges that the color of the image information displayed by the industrial tablet computer is too dim and corrects the display brightness adjusted by the industrial tablet computer by using beta 3;
if C is more than C1 and less than or equal to C2, the central control module judges that the color brightness of the image information displayed by the industrial tablet computer meets the standard and does not correct the display brightness of the display module of the industrial tablet computer;
if C is more than C2 and less than or equal to C3, the central control module judges that the color of the image information displayed by the industrial tablet computer is dazzling and corrects the display brightness of the display module adjusted by the industrial tablet computer by using beta 2;
if C is larger than C3, the central control module judges that the color of the image information displayed by the industrial tablet computer is too dazzling and corrects the display brightness of the display module adjusted by the industrial tablet computer by using beta 1;
when the central control module determines that the adjusted display brightness of the display module is adjusted by using the kth preset ambient brightness β k, k =1, 2 is set, the central control module records the display brightness of the display module after being corrected as L ", and L" = L' × β k is set.
As shown in fig. 1, the central control module has a maximum brightness value Lmax and a minimum brightness value Lmin, and when the central control module determines that the brightness of the display module needs to be adjusted to L ″, the central control module determines whether to adjust the color temperature and the contrast of the image output by the display module according to L ″,
if L is less than or equal to Lmin, the central control module judges that the display brightness of the display module is too low, adjusts the display brightness of the display module to Lmin and adjusts the color temperature of an image output by the display module to be warm;
if Lmin is larger than L and smaller than or equal to Lmax, the central control module judges that the display brightness of the display module is moderate and does not adjust the color temperature or the contrast of an image output by the display module;
if L 'is larger than Lmax, the central control module judges that the display brightness of the display module is too high, adjusts the display brightness of the display module to Lmax, calculates the actual critical brightness difference value DeltaL, adjusts the contrast of the image output by the display module to a corresponding value according to DeltaL, and sets DeltaL = L' -Lmax.
As shown in fig. 1, the central control module has a first predetermined critical brightness difference Δ L1, a second predetermined critical brightness difference Δ L2, a first contrast adjustment parameter r1, and a second contrast adjustment parameter r2, where Δ L1 is less than Δ L2, 1.05 is less than r1 is less than r2 is less than 1.2, the contrast is corrected according to the critical brightness difference,
if the delta L is less than or equal to the delta L1, the central control module judges that the actual critical brightness difference value is within a preset range and does not adjust the contrast of the image output by the display module;
if the delta L1 is less than or equal to the delta L2, the central control module judges that the actual critical brightness difference is small, and adjusts the contrast of an output image of the display module by using a contrast first adjusting parameter r 1;
if DeltaL >. DELTA L2, the central control module judges that the actual critical brightness difference is large, and adjusts the contrast of the image output by the display module by using a second contrast adjustment parameter r 2;
when the central control module determines that the contrast of the output image of the display module is adjusted by using the ith adjustment parameter rx, setting x =1, 2, setting the initial contrast B of the display module, and setting B '= B × rx by the central control module, wherein the corrected contrast of the display module is recorded as B'.
As shown in fig. 1, the central control module has a power consumption critical value Vmax, and when the central control module completes the adjustment of the vector diagram of the display module, the central control module periodically detects the power consumption V of the industrial tablet computer,
if V is larger than Vmax, the central control module judges that the power consumption is too high and reduces the display brightness of the display module;
and if the V is less than or equal to the Vmax, the central control module judges that the power consumption meets the standard and does not adjust the display brightness of the display module.
As shown in fig. 1, the sensor module is an illuminance sensor for detecting an ambient brightness of the industrial tablet computer and outputting a corresponding electrical signal to the central control module according to the ambient brightness.
As shown in fig. 1, the display module is configured to receive the electrical signal output by the central control module and processed by the determination, and output image information with different brightness according to the electrical signal.
In order to adapt to special and severe environments, a power supply, a case and a mainboard of the industrial tablet computer are designed to adapt to long-time uninterrupted operation. In order to better use the industrial tablet computer and keep good working performance all the time, the industrial tablet computer is required to be maintained necessarily and reasonably in daily use, so the invention provides the industrial tablet computer capable of automatically adjusting the brightness, the industrial tablet computer can still be normally used in the environment with high outdoor wind, high noise and strong illumination, the problem that the industrial tablet computer needs to be matched with external software when the brightness is adjusted is further solved, the functions of the industrial tablet computer are increased, the convenience of using the industrial tablet computer is improved, the experience of a user is further improved, and the working efficiency of workers is also improved.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an industry panel computer of automatically regulated luminance which characterized in that, includes sensor module, display module and well accuse module:
the sensor module is arranged at the upper end of the display screen of the industrial tablet computer and connected with the central control module, and adopts a photoelectric element as a detection element for detecting the brightness of the environment where the industrial tablet computer is located;
the central control module is respectively connected with one end of the sensor module and one end of the display module, and is used for receiving the electric signal sent by the sensor module and adjusting the display brightness of the display module to a corresponding value according to the electric signal measured by the sensor module so as to enable the display brightness to meet the standard; the central control module adjusts the display brightness of the display module to a corresponding value when judging that the ambient brightness does not meet the standard, and judges whether to adjust the color temperature and the contrast of the image displayed by the display module when the display brightness is adjusted to a critical value;
the display module is connected with one end of the central control module and used for receiving and adjusting the electric signal sent by the central control module to output corresponding image information, the brightness value of the display module is set to be L, and when the central control module preliminarily judges that the brightness S of the environment where the industrial tablet computer is located does not meet the standard, the central control module controls the display module to adjust the brightness L; and the central control module corrects the brightness adjusting multiplying power according to the actual main wavelength C of the display module in the process of adjusting the brightness.
2. The tablet of claim 1, wherein the central control module has a preset environment brightness S0, and when the tablet runs, the central control module controls the sensor module to acquire the brightness S of the environment where the tablet is located and compare S with S0 to determine whether the brightness of the environment where the tablet is located meets the standard,
if S = S0, the central control module determines that the brightness of the environment where the industrial tablet computer is located meets the standard, and the central control module does not adjust the display brightness of the display module;
if S is not equal to S0, the central control module preliminarily judges that the brightness of the environment where the industrial tablet computer is located does not meet the standard, calculates the ambient brightness difference value Delta S and determines the adjusting magnification of the display brightness of the display module according to the ambient brightness difference value Delta S.
3. The industrial tablet computer with automatic brightness adjustment function according to claim 2, wherein the central control module is further provided with a first preset brightness difference Δ S1, a second preset brightness difference Δ S2, a first preset brightness adjustment magnification α 1 and a second preset brightness adjustment magnification α 2, wherein Δ S1 < ΔS2, α 2 < α 1 < 1, if S > S0, Δ S = S-S0 is set, if S < S0, Δ S = S0-S is set,
if the delta S is less than or equal to the delta S1, the central control module judges that the brightness is not adjusted;
if the delta S is more than delta S1 and less than or equal to delta S2, the central control module judges that the display brightness of the display module is adjusted by using a first preset brightness adjusting multiplying factor alpha 1;
if the delta S is larger than the delta S2, the central control module judges that the display brightness of the display module is adjusted by using a second preset brightness adjusting multiplying factor alpha 2;
when the central control module determines that the display brightness of the display module is adjusted by using the i-th preset brightness adjustment magnification α i, i =1, 2 is set, the central control module records the adjusted display brightness of the display module as L ', if S > S0, L ' = L × (2- α i) is set, and if S < S0, L ' = L × α i is set.
4. The tablet personal computer with automatic brightness adjustment function as claimed in claim 3, wherein the central control module is provided with a first preset artificial brightness S1, a second preset artificial brightness S2, a first preset ambient brightness correction coefficient e1 and a second preset ambient brightness correction coefficient e2, wherein S1 < S2, 0.7 < e1 < 1 < e2 < 1.4, and determines whether to correct the preset ambient brightness S0 according to S when the tablet personal computer is in the artificial light environment,
if S is not more than S1, the central control module judges that the environment is a low-light environment and corrects the preset environment brightness S0 by using e 1;
if S1 is greater than S2, the central control module judges that the environment is a proper illumination environment and does not modify the preset environment brightness;
if S is more than S2, the central control module judges that the environment is a strong light environment and corrects the preset environment brightness by using e 2;
when the central control module determines to adjust the ambient brightness by using the j-th preset artificial brightness ej, setting j =1, 2, and the central control module records the corrected preset ambient brightness as S0 ', and sets S0' = S0 × ej.
5. The industrial tablet computer capable of automatically adjusting brightness according to claim 4, wherein the central control module is provided with a first preset wavelength C1, a second preset wavelength C2, a third preset wavelength C3, a first preset brightness correction coefficient β 1, a second preset brightness correction coefficient β 2 and a third preset brightness correction coefficient β 3, wherein C1 < C2 < C3, β 1 < β 2 < 1 < β 3
If the C is less than or equal to C1, the central control module judges that the color of the image information displayed by the industrial tablet computer is too dim and corrects the display brightness adjusted by the industrial tablet computer by using beta 3;
if C is more than C1 and less than or equal to C2, the central control module judges that the color brightness of the image information displayed by the industrial tablet computer meets the standard and does not correct the display brightness of the display module of the industrial tablet computer;
if C is more than C2 and less than or equal to C3, the central control module judges that the color of the image information displayed by the industrial tablet computer is dazzling and corrects the display brightness of the display module adjusted by the industrial tablet computer by using beta 2;
if C is larger than C3, the central control module judges that the color of the image information displayed by the industrial tablet computer is too dazzling and corrects the display brightness of the display module adjusted by the industrial tablet computer by using beta 1;
when the central control module determines that the adjusted display brightness of the display module is adjusted by using the kth preset ambient brightness β k, k =1, 2 is set, the central control module records the display brightness of the display module after being corrected as L ", and L" = L' × β k is set.
6. The industrial tablet computer with the automatic brightness adjustment function according to claim 5, wherein the central control module is provided with a maximum brightness value Lmax and a minimum brightness value Lmin, and when the central control module determines that the brightness of the display module needs to be adjusted to L ', the central control module determines whether to adjust the color temperature and the contrast of the image output by the display module according to L',
if L is less than or equal to Lmin, the central control module judges that the display brightness of the display module is too low, adjusts the display brightness of the display module to Lmin and adjusts the color temperature of an image output by the display module to be warm;
if Lmin is less than or equal to L' and less than or equal to Lmax, the central control module judges that the display brightness of the display module is moderate and does not adjust the color temperature or the contrast of an image output by the display module;
if L 'is larger than Lmax, the central control module judges that the display brightness of the display module is too high, adjusts the display brightness of the display module to Lmax, calculates the actual critical brightness difference value DeltaL, adjusts the contrast of the image output by the display module to a corresponding value according to DeltaL, and sets DeltaL = L' -Lmax.
7. The industrial tablet computer capable of automatically adjusting brightness according to claim 6, wherein the central control module is provided with a first preset critical brightness difference Δ L1, a second preset critical brightness difference Δ L2, a contrast first adjustment parameter r1 and a contrast second adjustment parameter r2, wherein Δ L1 & lt Δ L2, 1.05 & lt r1 & lt r2 & lt 1.2, the contrast is corrected according to the critical brightness difference,
if the delta L is less than or equal to the delta L1, the central control module judges that the actual critical brightness difference value is within a preset range and does not adjust the contrast of the image output by the display module;
if the delta L1 is larger than or equal to the delta L2, the central control module judges that the actual critical brightness difference is small, and the contrast of an output image of the display module is adjusted by using a first adjustment parameter r1 of the contrast;
if DeltaL >. DELTA L2, the central control module judges that the actual critical brightness difference is large, and adjusts the contrast of the image output by the display module by using a second contrast adjustment parameter r 2;
when the central control module determines to adjust the contrast of the output image of the display module by using the ith adjustment parameter rx, setting x =1, 2, setting the initial contrast B of the display module, and setting B '= B × rx by the central control module, wherein the corrected contrast of the display module is recorded as B'.
8. The industrial tablet computer with the function of automatically adjusting the brightness according to claim 2, wherein the central control module is provided with a power consumption critical value Vmax, and periodically detects the power consumption V of the industrial tablet computer when the central control module completes the adjustment of the previous vector diagram of the display module,
if V is larger than Vmax, the central control module judges that the power consumption is too high and reduces the display brightness of the display module;
and if the V is less than or equal to the Vmax, the central control module judges that the power consumption meets the standard and does not adjust the display brightness of the display module.
9. The industrial tablet computer with the automatic brightness adjustment function according to claim 1, wherein the sensor module is a light intensity sensor for detecting an ambient brightness of the industrial tablet computer and outputting a corresponding electrical signal to the central control module according to the ambient brightness.
10. The industrial tablet computer capable of automatically adjusting the brightness as claimed in claim 1, wherein the display module is configured to receive the electrical signal output by the central control module and processed by judgment and output image information with different brightness according to the electrical signal.
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