CN104008719A - Device for adjusting brightness of display screen and adjustment control method of such device - Google Patents
Device for adjusting brightness of display screen and adjustment control method of such device Download PDFInfo
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- CN104008719A CN104008719A CN201310055830.XA CN201310055830A CN104008719A CN 104008719 A CN104008719 A CN 104008719A CN 201310055830 A CN201310055830 A CN 201310055830A CN 104008719 A CN104008719 A CN 104008719A
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- brightness
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- display screen
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- chip microcomputer
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Abstract
The invention discloses a device for adjusting brightness of a display screen of an air-conditioner, and an adjustment control method of such a device. According to the adjustment control method of the device, a photosensitive triode is used to detect the ambient brightness of an air-conditioner. With the changes of the brightness, a voltage across the photosensitive triode and passing a resistor may generate relative fluctuation; and a single-chip microcomputer can calculate the ambient brightness of the air-conditioner according to the voltage changes. Because the single-chip microcomputer is electrically connected with an LED, the brightness of the display screen can be correspondingly adjusted according to the changes of the ambient brightness. When the ambient brightness is high, the brightness of the display screen is increased; when the ambient brightness is low, the brightness of the display screen is lowered. Therefore, the device and the method realize automatic, prompt and effective adjustment of the display screen without manual operation in a convenient manner with good brightness adjusting effect.
Description
Technical field
The invention belongs to air-conditioning technique field, be specifically related to the adjustment control method of a kind of air conditioner brightness of display screen regulating device and this device.
Background technology
Along with growth in the living standard, people are more and more higher to the requirement of air-conditioning, and air-conditioning not only will have the function that regulates temperature and humidity, also elegant in appearance in appearance, therefore, air-conditioning manufacturer constantly develops more and more abundanter display screen, to meet client's demand.
The brightness of existing air conditioner display screen can not regulate automatically, when daytime, light was stronger, shows and too secretly causes not seeing screen, during night, shows that the too bright user of causing sleeps influenced.
There is at present a kind of air conditioner (patent No.: 200620062844.X) with brightness adjustable screen, the disclosed air conditioner with display screen of this patent, be included in display screen, the control panel on air-conditioner shell and the air conditioning control device being electrically connected to display screen, control panel, control device and telepilot wireless connections, control device comprises signal receiving device and display control unit, telepilot or control panel are provided with the button of setting luminance signal, and this button is with signal receiving device wireless connections or be electrically connected to.Adjusting remote device by manually or the button on control panel regulate the brightness of display screen.
Although this patent can realize the adjusting to brightness of display screen, but, must be artificial go manual adjustments, comparatively bother, especially sometimes Changes in weather is very fast, and shading value is indefinite, therefore needs constantly according to the brightness regulation display screen of external environment condition, but people possibly cannot regulate according to the brightness of environment timely and effectively, cause the undesirable of brightness of display screen adjusting.
Therefore, for the problems referred to above, be necessary to propose a kind ofly can constantly automatically regulate the brightness of display screen according to the bright Strength Changes of external environment condition, when ambient brightness is higher, display brightness increases, when ambient brightness is lower, and the object that display brightness reduces.
Summary of the invention
In view of this, the invention provides and a kind ofly can change the regulating device regulate brightness of display screen according to external environment condition brightness, realize display screen adjusting timely and effectively automatically, without manual operation, more for convenience, brightness regulation effect is better.
A kind of brightness of display screen regulating device proposing according to object of the present invention, is applied on air conditioner, and this regulating device comprises:
LED
Brightness detection module: for detection of described air conditioner ambient brightness around, and the variation of brightness is converted to the variation of output current, and form corresponding output voltage by resistance;
Control output module: receive the output voltage signal of described brightness detection module, and according to the variation of described brightness detection module output signal, calculate the bright intensity of environment, and this output signal is converted to different Voltage-outputs to LED;
Described brightness detection module is phototriode, and described control output module is single-chip microcomputer, and the output terminal of described phototriode is electrically connected to the input end of described single-chip microcomputer, and the output terminal of described single-chip microcomputer is electrically connected to described LED.
Preferably, described single-chip microcomputer comprises CPU and A/D converter, by described A/D converter, the output signal of described phototriode is carried out to reception & disposal and changed into corresponding change in voltage exporting.
Preferably, the dark current of described phototriode is less than 1 μ A.
Preferably, the photocurrent of described phototriode is greater than 8 μ A.
Preferably, a minute photo sensitivity for described phototriode is 480 ~ 1000nm.
Preferably, half right angle of described phototriode is ± 30 °.
Preferably, described air conditioner comprises telepilot, and described telepilot is provided with LED model selection button, by the operation of this button being realized to the switching of at least one pattern in the conventional control model of LED brightness regulation pattern and LED and LED night faint light illumination mode.
A brightness of display screen adjustment control method that uses described brightness of display screen regulating device, is characterized in that, concrete steps are as follows:
The variation of brightness in phototriode testing environment, light luminance is higher, and the electric current producing in phototriode is larger;
The Voltage-output that electric current produces through resistance to the input end of single-chip microcomputer carries out AD conversion;
Single-chip microcomputer, according to the input-output characteristic curve of phototriode, can be calculated the bright intensity of environment by the voltage of inputting;
Single-chip microcomputer is exported different voltage by DA, and the brightness that LED is shown is controlled, and environment bright intensity is higher, and the voltage of output is larger, and LED is brighter.
Preferably, described air conditioner comprises telepilot, and described telepilot is provided with LED model selection button, by the operation of this button being realized to the switching of at least one pattern in the conventional control model of LED brightness regulation pattern and LED and LED night faint light illumination mode;
When by LED model selection button faint light illumination mode at selection LED night, use a teleswitch brightness is directly controlled, make single-chip microcomputer output maximum voltage.
Compared with prior art, the advantage of the adjustment control method of a kind of air conditioner brightness of display screen regulating device disclosed by the invention and this device is: by adopting phototriode to detect the brightness of air conditioner surrounding environment, variation along with brightness, phototriode can produce corresponding fluctuation by the voltage of resistance, single-chip microcomputer is according to the situation of change in voltage, can calculate air conditioner ambient brightness around, because single-chip microcomputer is electrically connected to LED, according to the variation of ambient brightness, export different voltage, the corresponding brightness that regulates display screen, when ambient brightness is higher, brightness of display screen increases, when ambient brightness is lower, brightness of display screen reduces, realization regulates automatically timely and effectively to display screen, without manual operation, more for convenience, brightness regulation effect is better, further, air conditioner of the present invention comprises telepilot, described telepilot is provided with LED model selection button, by the operation of this button being realized to the switching of at least one pattern in the conventional control model of LED brightness regulation pattern and LED and LED night faint light illumination mode.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that brightness transition is the circuit of voltage signal.
Fig. 2 is the schematic diagram that single-chip microcomputer is controlled LED.
Fig. 3 is the corresponding relation figure between light intensity and phototriode collector current.
Embodiment
Existing air conditioner cannot change the brightness that regulates timely and effectively display screen according to the brightness of external environment condition, occur that daytime, light cannot be seen display screen clearly too by force, the too bright problems such as sleep that affect of display screen in evening, and the adjustable air conditioner of display screen existing at present, mainly by the adjusting brightness of display screen artificial according to the brightness situation of environment, take and normal according to brightness, change and adjust, operation is trouble comparatively, and the problems such as the effect of brightness adjusting is undesirable are with not enough.
The present invention is directed to deficiency of the prior art, by adopting phototriode to detect the brightness situation of air conditioner surrounding environment, variation along with brightness, phototriode can produce corresponding fluctuation by the voltage of resistance, single-chip microcomputer is according to the situation of change in voltage, can calculate air conditioner ambient brightness around, because single-chip microcomputer is electrically connected to LED, can export different voltage according to the variation of ambient brightness, the corresponding brightness that regulates display screen, when ambient brightness is higher, brightness of display screen increases, when ambient brightness is lower, brightness of display screen reduces, realization regulates automatically timely and effectively to display screen, without manual operation, more for convenience, brightness regulation effect is better.When need faint illumination night, can use a teleswitch brightness is directly controlled, make single-chip microcomputer output maximum voltage, make demonstration the brightest, reach the effect of faint illumination.
To technical scheme of the present invention, be clearly and completely described by embodiment below.Obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please also refer to Fig. 1 to Fig. 3, Fig. 1 is that brightness transition is the circuit of voltage signal.Fig. 2 is the schematic diagram that single-chip microcomputer is controlled LED.Fig. 3 is the corresponding relation figure between light intensity and phototriode collector current.As shown in the figure, a kind of brightness of display screen regulating device proposing according to object of the present invention, is applied on air conditioner, and this regulating device comprises:
LED, is the chief component of air conditioner display screen, for showing each performance parameter such as temperature, humidity, wind-force size of air conditioner.
Brightness detection module: for detection of air conditioner ambient brightness around, produce corresponding variation according to the output current of the variation phototriode of brightness, electric current forms corresponding output voltage by resistance; As shown in Figure 3, the size of electric current and bright intensity are proportional, and external environment condition brightness is higher, and electric current is larger, and the voltage of corresponding output is also just larger.
Control output module: the output voltage signal that receives brightness detection module, and according to the variation of brightness detection module output signal, calculate the bright intensity of environment, and this output signal is converted to different Voltage-outputs to LED, brightness to LED is controlled, when external environment condition brightness is higher, LED is just brighter.
Brightness detection module is phototriode, when the PN junction in phototriode with light sensitive characteristic is subject to optical radiation, just form photocurrent, consequent photogenerated current enters emitter by base stage, thereby obtain one in collector loop, has amplified the marking current that is equivalent to β times.This marking current produces corresponding output voltage and exports to control output module through resistance, and phototriode has the effect that very large electric current amplifies for photodiode, has higher sensitivity.
Control output module is single-chip microcomputer, and the output terminal of phototriode is electrically connected to the input end of single-chip microcomputer, and the output terminal of single-chip microcomputer is electrically connected to described LED, controls the brightness of LED.
Single-chip microcomputer can be linear monolithic machine or non-linear single-chip microcomputer etc.Single-chip microcomputer comprises CPU and A/D converter, by A/D converter, the output signal of phototriode is carried out to reception & disposal and changed into corresponding change in voltage exporting.
The in the situation that of unglazed photograph, when the voltage between collector and emitter is setting, the reverse leakage current that flows through collector is called the dark current of phototriode.The dark current of phototriode is less than 1 μ A, and general dark current is less, and the sensitivity of phototriode is higher.The size of dark current specifically can be 0.8 μ A, 0.9 μ A, 0.7 μ A, 0.6 μ A etc., and concrete numerical value depends on the circumstances, and at this, does not limit.
Under regulation illumination, when applying the operating voltage of regulation, the electric current that flows through phototriode is called photocurrent, and photocurrent is larger, illustrates that the sensitivity of phototriode is higher.In the present invention, the photocurrent of phototriode is greater than 8 μ A, and sensitivity is higher, and the size of photocurrent specifically can be 10 μ A, 15 μ A, 20 μ A, 25 μ A etc., and concrete numerical value depends on the circumstances, and at this, does not limit.
A minute photo sensitivity for phototriode is 480 ~ 1000nm.Also can be 500nm, 600nm, 700nm, 800nm or 900nm etc., specifically depend on the circumstances, at this, do not limit.
And half right angle of phototriode is ± 30 ° of bright intensity that make phototriode can detect timely and effectively air conditioner external environment condition, make the effective control of single-chip microcomputer to LED.
A brightness of display screen adjustment control method, concrete steps are as follows:
S1: phototriode detects the variation of brightness in air conditioner external environment condition, and light luminance is higher, and the electric current producing in phototriode is larger;
S2: the Voltage-output that electric current produces through resistance to the input end of single-chip microcomputer carries out AD conversion, according to the variation of external environment condition light intensity, electric current constantly changes, and the output voltage of the resistance that then causes flowing through produces corresponding fluctuation;
S3: single-chip microcomputer, according to the input-output characteristic curve of phototriode, can be calculated the bright intensity of air conditioner external environment condition by the voltage of inputting;
S4: single-chip microcomputer is held the different voltage of output by DA, and the brightness that LED is shown is controlled, air conditioner external environment condition light intensity is higher, and the voltage of output is larger, and LED is brighter; Otherwise air conditioner external environment condition light intensity is lower, the voltage of output is less, and LED is darker; By regulating device, with realization, according to the brightness of environment, change the display brightness of adjusting LED constantly.
In addition, air conditioner also comprises telepilot, and telepilot is provided with LED model selection button, by the operation of this button being realized to the switching of at least one pattern in the conventional control model of LED brightness regulation pattern and LED and LED night faint light illumination mode.
When by LED model selection button faint light illumination mode at selection LED night, use a teleswitch brightness is directly controlled, make single-chip microcomputer output maximum voltage.
Compared with prior art, the advantage of the adjustment control method of a kind of air conditioner brightness of display screen regulating device disclosed by the invention and this device is: by adopting phototriode to detect the brightness of air conditioner surrounding environment, variation along with brightness, phototriode can produce corresponding fluctuation by the voltage of resistance, single-chip microcomputer is according to the situation of change in voltage, can calculate air conditioner ambient brightness around, because single-chip microcomputer is electrically connected to LED, according to the variation of ambient brightness, export different voltage, the corresponding brightness that regulates display screen, when ambient brightness is higher, brightness of display screen increases, when ambient brightness is lower, brightness of display screen reduces, realization regulates automatically timely and effectively to display screen, without manual operation, more for convenience, brightness regulation effect is better, further, air conditioner of the present invention comprises telepilot, described telepilot is provided with LED model selection button, by the operation of this button being realized to the switching of at least one pattern in the conventional control model of LED brightness regulation pattern and LED and LED night faint light illumination mode.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a brightness of display screen regulating device, is applied to, on air conditioner, it is characterized in that, this regulating device comprises:
LED
Brightness detection module: for detection of described air conditioner ambient brightness around, and the variation of brightness is converted to the variation of output current, and form corresponding output voltage by resistance;
Control output module: receive the output voltage signal of described brightness detection module, and according to the variation of described brightness detection module output signal, calculate the bright intensity of environment, and this output signal is converted to different Voltage-outputs to LED;
Described brightness detection module is phototriode, and described control output module is single-chip microcomputer, and the output terminal of described phototriode is electrically connected to the input end of described single-chip microcomputer, and the output terminal of described single-chip microcomputer is electrically connected to described LED.
2. brightness of display screen regulating device according to claim 1, it is characterized in that, described single-chip microcomputer comprises CPU and A/D converter, by described A/D converter, the output signal of described phototriode is carried out to reception & disposal and changed into corresponding change in voltage exporting.
3. brightness of display screen regulating device according to claim 1, is characterized in that, the dark current of described phototriode is less than 1 μ A.
4. brightness of display screen regulating device according to claim 1, is characterized in that, the photocurrent of described phototriode is greater than 8 μ A.
5. brightness of display screen regulating device according to claim 1, is characterized in that, a minute photo sensitivity for described phototriode is 480 ~ 1000nm.
6. brightness of display screen regulating device according to claim 1, is characterized in that, half right angle of described phototriode is ± 30 °.
7. brightness of display screen regulating device according to claim 1, it is characterized in that, described air conditioner comprises telepilot, described telepilot is provided with LED model selection button, by the operation of this button being realized to the switching of at least one pattern in the conventional control model of LED brightness regulation pattern and LED and LED night faint light illumination mode.
8. right to use requires a brightness of display screen adjustment control method for the brightness of display screen regulating device described in 1, it is characterized in that, concrete steps are as follows:
The variation of brightness in phototriode testing environment, light luminance is higher, and the electric current producing in phototriode is larger;
The Voltage-output that electric current produces through resistance to the input end of single-chip microcomputer carries out AD conversion;
Single-chip microcomputer, according to the input-output characteristic curve of phototriode, can be calculated the bright intensity of environment by the voltage of inputting;
Single-chip microcomputer is exported different voltage by DA, and the brightness that LED is shown is controlled, and environment bright intensity is higher, and the voltage of output is larger, and LED is brighter.
9. brightness of display screen adjustment control method as claimed in claim 8, it is characterized in that, described air conditioner comprises telepilot, described telepilot is provided with LED model selection button, by the operation of this button being realized to the switching of at least one pattern in the conventional control model of LED brightness regulation pattern and LED and LED night faint light illumination mode;
When by LED model selection button faint light illumination mode at selection LED night, use a teleswitch brightness is directly controlled, make single-chip microcomputer output maximum voltage.
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| CN104378879A (en) * | 2014-10-31 | 2015-02-25 | 无锡鸿声铝业有限公司 | Intelligent lighting device for background wall |
| CN104633880A (en) * | 2015-02-16 | 2015-05-20 | 四川长虹空调有限公司 | Automatic display brightness regulation air conditioner and method |
| CN105155941A (en) * | 2015-09-01 | 2015-12-16 | 张泽 | Smart lock and control method thereof |
| CN106403178A (en) * | 2016-09-19 | 2017-02-15 | 珠海格力电器股份有限公司 | Control method and device of air conditioner and air conditioner |
| CN106765905A (en) * | 2016-11-29 | 2017-05-31 | 广东美的制冷设备有限公司 | The control method of air-conditioner, control device and air-conditioner |
| CN106839350A (en) * | 2017-01-04 | 2017-06-13 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and its display control method |
| CN107101333A (en) * | 2017-04-28 | 2017-08-29 | 青岛海尔空调器有限总公司 | Air conditioner and its threshold adjustment methods |
| CN108120586A (en) * | 2017-12-26 | 2018-06-05 | 中航华东光电有限公司 | Dimming curve automatic testing equipment |
| CN108731191A (en) * | 2017-04-20 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of air conditioner display screen brightness control method and device |
| CN108954682A (en) * | 2018-05-29 | 2018-12-07 | 奥克斯空调股份有限公司 | Air conditioner display screen brightness adjusting method and air conditioner |
| CN110677957A (en) * | 2015-03-13 | 2020-01-10 | 路创技术有限责任公司 | Control device having an illuminated portion controlled in response to an external sensor |
| CN112413828A (en) * | 2020-12-09 | 2021-02-26 | 珠海格力电器股份有限公司 | Display picture adjusting method and device of air conditioning equipment |
| CN114383273A (en) * | 2021-12-27 | 2022-04-22 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
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| CN106839350A (en) * | 2017-01-04 | 2017-06-13 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and its display control method |
| CN106839350B (en) * | 2017-01-04 | 2020-08-25 | 青岛海尔空调器有限总公司 | Air conditioner and display control method thereof |
| CN108731191B (en) * | 2017-04-20 | 2020-07-07 | 奥克斯空调股份有限公司 | Air conditioner display screen brightness control method and device |
| CN108731191A (en) * | 2017-04-20 | 2018-11-02 | 奥克斯空调股份有限公司 | A kind of air conditioner display screen brightness control method and device |
| CN107101333B (en) * | 2017-04-28 | 2019-12-06 | 青岛海尔空调器有限总公司 | Air conditioner and threshold value adjusting method thereof |
| CN107101333A (en) * | 2017-04-28 | 2017-08-29 | 青岛海尔空调器有限总公司 | Air conditioner and its threshold adjustment methods |
| CN108120586A (en) * | 2017-12-26 | 2018-06-05 | 中航华东光电有限公司 | Dimming curve automatic testing equipment |
| CN108954682A (en) * | 2018-05-29 | 2018-12-07 | 奥克斯空调股份有限公司 | Air conditioner display screen brightness adjusting method and air conditioner |
| CN108954682B (en) * | 2018-05-29 | 2020-07-31 | 奥克斯空调股份有限公司 | Air conditioner display screen brightness adjusting method and air conditioner |
| CN112413828A (en) * | 2020-12-09 | 2021-02-26 | 珠海格力电器股份有限公司 | Display picture adjusting method and device of air conditioning equipment |
| CN114383273A (en) * | 2021-12-27 | 2022-04-22 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
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Application publication date: 20140827 |