CN108731191B - Air conditioner display screen brightness control method and device - Google Patents
Air conditioner display screen brightness control method and device Download PDFInfo
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- CN108731191B CN108731191B CN201710262254.4A CN201710262254A CN108731191B CN 108731191 B CN108731191 B CN 108731191B CN 201710262254 A CN201710262254 A CN 201710262254A CN 108731191 B CN108731191 B CN 108731191B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The invention discloses a brightness control device of an air conditioner display screen, which comprises a photosensitive assembly (1), a controller (2) and a display screen (3), wherein the photosensitive assembly (1) and the display screen (3) are respectively connected with the controller (2), and the brightness control device is characterized by further comprising a control end (4), the control end (4) is connected with the controller (2), and the control end (4) can send a control instruction to the controller (2) so as to directly control the brightness of the display screen (3). The invention has the beneficial effects that: (1) the brightness of the display screen can still be adjusted when the photosensitive component is damaged by a user; (2) and judging whether the photosensitive assembly breaks down or not according to the change of the detection signal of the photosensitive assembly, so as to avoid the display screen from being normally off or on.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a method and a device for controlling brightness of an air conditioner display screen.
Background
In the prior art, as shown in fig. 7, the brightness of the display screen is usually controlled by an automatic control method of the brightness of the display screen, that is: the photosensitive assembly detects the indoor illumination intensity of the indoor unit of the air conditioner in real time, the photosensitive assembly sends the detected indoor illumination intensity information to the controller, and the controller controls the brightness of the display screen according to the indoor illumination intensity information. Generally, when the indoor illumination intensity is high, the controller controls the brightness of the display screen to be high so that a user can clearly see information on the display screen in a bright indoor environment; when the indoor illumination intensity is low, the controller controls the brightness of the display screen to be low, so that the brightness of the display screen is more suitable for the dark environment where the user is located; and when the indoor illumination intensity is smaller than a certain threshold value, the controller sets the display screen to be in a turn-off state.
Publication number CN106403178A discloses a control method and device of an air conditioner and the air conditioner. The method comprises the following steps: acquiring the current environment brightness detected by the brightness sensor; judging whether the current environment brightness does not reach a first preset brightness value within continuous first preset time; if the current environment brightness does not reach a first preset brightness value within continuous first preset time, judging whether a control instruction input by a user exists; and if the control instruction input by the user exists, controlling the display screen to be reduced to a second preset brightness value for displaying, and otherwise, turning off the display screen.
However, the brightness control of the display screen by the controller is performed based on the indoor illumination intensity information to be detected by the photosensitive assembly, in the prior art, the automatic brightness control function of the display screen can be turned on or turned off in a manual control mode, but when the photosensitive assembly fails, the display screen is usually in a normally on or normally off state, and the display state of the display screen cannot be controlled, so that the inconvenience in use of a user is caused.
Disclosure of Invention
The invention aims to provide a method and a device for controlling the brightness of an air conditioner display screen, so that the brightness of the display screen can still be adjusted when a photosensitive assembly fails.
Specifically, the invention is realized by the following technical scheme:
the utility model provides an air conditioner display screen brightness control device, the device includes photosensitive assembly, controller, display screen, photosensitive assembly, display screen are connected with the controller respectively, still include the control end, the control end is connected with the controller, the control end can send control command to the controller to direct control the luminance of display screen.
The method for controlling the brightness of the air conditioner display screen uses the device for controlling the brightness of the air conditioner display screen, and comprises the following steps:
step 1: starting an air conditioner;
step 2: the controller controls the brightness of the display screen according to the automatic brightness control mode;
and step 3: judging whether the indoor light intensity detection fails or not by a controller of the air conditioner, and if so, executing a step 4;
and 4, step 4: the controller controls the brightness of the display screen according to a manual brightness control mode.
Preferably, the step 2 includes:
step 21: the photosensitive assembly detects the indoor illumination intensity;
step 22: the photosensitive component generates light intensity information according to the detected illumination intensity and sends the light intensity information to the controller;
step 23: the controller receives light intensity information;
step 24: and the controller adjusts the brightness of the display screen according to the light intensity information.
Preferably, the step 3 includes:
the controller judges whether the received light intensity information is changed within a first time length, if the received light intensity information is changed, the indoor light intensity detection is judged to be invalid, or the indoor light intensity detection is judged to be invalid if the received light intensity information is not changed, and the light intensity detection is judged to be invalid.
Preferably, the step 4 includes:
the controller detects whether a manual control signal from the control end is received or not in real time, and if yes, the brightness of the display screen is adjusted according to the content corresponding to the manual control signal.
Preferably, the step 24 includes:
step 241: the controller judges the type of the light intensity information, if the light intensity information is a voltage signal and the amplitude of the voltage signal is higher than a first voltage threshold, step 242 is executed, and if the light intensity information is a voltage signal and the amplitude of the voltage signal is lower than a second voltage threshold, step 243 is executed;
step 242: the controller judges whether the duration time of the voltage signal is greater than or equal to a second time length, if so, the display screen is controlled to be extinguished, and if not, the step 241 is returned;
step 243: the controller judges whether the duration time of the voltage signal is greater than or equal to a third time length, if so, the display screen is controlled to be normally bright, and if not, the step 241 is returned.
Preferably, the method further comprises:
the air conditioner reports the fault information corresponding to the failure of the light intensity detection.
Preferably, after step 242, the method further comprises:
step 201: the air conditioner sets the frequency of a buzzer prompt tone responding to a user instruction as a sound sleep frequency and sets the time length of the buzzer prompt tone as a sound sleep time length.
Preferably, after step 243, the method further comprises:
step 301: the air conditioner restores the buzzer prompt tone frequency responding to the user instruction to the standard frequency and restores the buzzer prompt tone time length to be the standard time length.
Preferably, after step 201, the method further comprises:
step 202: the controller judges whether the display screen extinguishing time is larger than or equal to the fourth time length, and if so, the air speed of the air conditioner is set to be the sleeping air speed.
Preferably, after step 301, the method further comprises:
step 302: and the controller judges whether the normally-on time of the display screen is greater than or equal to the fifth time length, and if so, the air speed of the air conditioner is restored to the standard air speed.
The invention has the beneficial effects that: (1) the brightness of the display screen can still be adjusted when the photosensitive component is damaged by a user; (2) whether the photosensitive assembly breaks down or not is judged according to the change of the detection signal of the photosensitive assembly, so that the fault judgment is more accurate, and the display screen is prevented from being normally off or normally on.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a brightness control device for an air conditioner display screen according to the present invention;
fig. 2 is a schematic diagram illustrating a brightness control method for an air conditioner display screen according to a first embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a brightness control method for an air conditioner display screen according to a second embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a brightness control method for an air conditioner display screen according to a third embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a brightness control method for an air conditioner display screen according to a fourth embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a method for controlling brightness of an air conditioner display screen according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of an automatic display screen brightness control device in the prior art.
Description of the reference numerals
To further clarify the structure and connection between the various components of the present invention, the following reference numerals are given and described.
1. A photosensitive element; 2. a controller; 3. a display screen; 4. and a control end.
The technical scheme of the invention can be more clearly understood and explained by combining the embodiment of the invention through the reference sign description.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The present invention will be described in detail below by way of examples.
A brightness control device for an air conditioner display screen is shown in figure 1 and comprises a photosensitive assembly 1, a controller 2, a display screen 3 and a control end 4, wherein the photosensitive assembly 1, the display screen 3 and the control end 4 are respectively connected with the controller 2. The photosensitive assembly 1 can detect indoor illumination intensity in real time, generates corresponding illumination intensity information according to the indoor illumination intensity, and sends the illumination intensity information to the controller 2, and the controller 2 controls the brightness of the display screen 3 according to the received illumination intensity information. The control terminal 4 can send a control instruction to the controller 2 to directly control the brightness of the display screen 3. The controller 2 of the present invention may be a single hardware entity, such as a single chip microcomputer and peripheral circuits thereof, or may be a collection of components distributed in various locations of the air conditioner for controlling the operation of various components of the air conditioner.
A method for controlling brightness of an air conditioner display screen according to a first embodiment of the present invention, as shown in fig. 2, includes the steps of:
s101: starting an air conditioner;
s102: the controller controls the brightness of the display screen according to the automatic brightness control mode;
s103: the controller of the air conditioner judges whether the indoor light intensity detection fails, if so, S104 is executed, and if not, S102 is executed;
s104: the controller controls the brightness of the display screen according to a manual brightness control mode.
In a second embodiment of the present invention, as shown in fig. 3, on the basis of the first embodiment, the step S102 includes:
s1021: the photosensitive assembly detects the indoor illumination intensity;
the illumination intensity is understood in the present invention to be a physical quantity detectable by the photosensitive elements representing the light and shade of the indoor light, and the physical quantity detected correspondingly may be different according to different photosensitive elements.
S1022: the photosensitive component generates light intensity information according to the detected illumination intensity and sends the light intensity information to the controller;
the light intensity information is understood as data information corresponding to the illumination intensity and capable of being read and judged by the controller, for example, data 0-9 may represent 10 brightness levels from the darkest to the brightest illumination intensity, which may be defined by a user or when the air conditioner leaves a factory; or, the light intensity information may also be binary logic information such as a high level and a low level, and when the light intensity information is binary logic information, it is a common practice to determine that the display screen is off or normally on according to the binary logic; or the light intensity information is a voltage signal, and the controller adjusts the brightness of the display screen according to the amplitude of the voltage signal.
S1023: the controller receives light intensity information;
s1024: and the controller adjusts the brightness of the display screen according to the light intensity information.
Specifically, a corresponding relation table between the light intensity information and the brightness of the display screen may be pre-stored in the controller, and the controller determines and adjusts the brightness of the display screen corresponding to the current light intensity information by looking up the table according to the light intensity information.
In one embodiment of the invention, the light intensity information comprises a high level signal and a low level signal, and when the controller detects that the light intensity information sent by the photosensitive assembly is the high level signal, the controller controls the display screen to be turned off; when the controller detects that the light intensity information sent by the photosensitive assembly is a low level signal, the controller controls the display screen to light up. When the light intensity information is at a high level or a low level, in engineering practice, the high level or the low level can be used for directly driving the display screen to be extinguished or normally lit.
In one embodiment of the present invention, the step S103 includes:
the controller judges whether the received light intensity information is changed within a first time length, if the received light intensity information is changed, the indoor light intensity detection is judged to be invalid, or the indoor light intensity detection is judged to be invalid if the received light intensity information is not changed, and the light intensity detection is judged to be invalid.
Specifically, the first time period is 18 hours.
In one embodiment of the present invention, the step S104 includes:
the controller detects whether a manual control signal from the control end is received or not in real time, and if yes, the brightness of the display screen is adjusted according to the content corresponding to the manual control signal. The control end can be a remote controller, a mobile phone and other equipment capable of transmitting information with the controller of the air conditioner. Under the manual brightness control mode, a user can set the display screen to be off or normally on through the control end, and can determine the brightness of the display screen, so that the display screen is prevented from being off or normally on when the automatic control fails.
In a third embodiment of the present invention, as shown in fig. 4, on the basis of the method described in the second embodiment, the step S1024 includes:
s10241: the controller judges the type of the light intensity information, if the light intensity information is a voltage signal and the amplitude of the voltage signal is higher than a first voltage threshold value, S10242 is executed, and if the light intensity information is a voltage signal and the amplitude of the voltage signal is lower than a second voltage threshold value, S10243 is executed;
s10242: the controller judges whether the duration time of the voltage signal is greater than or equal to a second time length, if so, the display screen is controlled to be extinguished, and if not, the process returns to S10241;
s10243: the controller judges whether the duration time of the voltage signal is greater than or equal to a third time length, if so, the display screen is controlled to be normally bright, and if not, the step returns to S10241.
In one embodiment of the present invention, the second time length is 8 seconds, and the third time length is 5 seconds.
In a fourth embodiment of the present invention, as shown in fig. 5, on the basis of the method of the first embodiment, after the controller of the air conditioner determines that the indoor light intensity detection is failed, the method further comprises the steps of:
s105: the air conditioner reports the fault information corresponding to the failure of the light intensity detection.
Specifically, the fault information may be sent to a display screen for display, or may be sent to an after-sales maintenance department via a communication network. The fault information may include a fault code.
In a fifth embodiment of the present invention, on the basis of the method described in the fourth embodiment, after step S10242, as shown in fig. 6, when the controller controls the display screen to be turned off, the method further includes the steps of:
s201: the air conditioner sets the frequency of a buzzer prompt tone responding to a user instruction as a sleep-comforting frequency, and sets the time length of the buzzer prompt tone as the sleep-comforting time length;
the sleepiness frequency value is lower than the standard frequency value. In most cases, when the display screen is off, indicating that the room is poorly lit, meaning that the user is likely to enter a sleep session, the buzzer alert tone frequency is correspondingly set to a first frequency value, and the buzzer alert tone duration is set to a snooze duration, which is typically set to a duration that is shorter than the standard buzzer alert tone duration, so as not to disturb the user's rest.
S202: the controller judges whether the display screen extinguishing time is larger than or equal to the fourth time length, and if so, the air speed of the air conditioner is set to be the sleeping air speed.
The sleeping wind speed is lower than the standard wind speed. In order to avoid misjudgment of the sleep of the user, a fourth time length is set, specifically, the fourth time length is 1 hour, when the controller detects that the display screen is not lightened for 1 hour, that is, the user really takes a rest is indicated, at this time, the air speed of the air conditioner is set to be the sleeping wind speed reduced to the standard wind speed, and the influence of the noise of the air conditioner fan on the user can be reduced. In the invention, the air conditioner sets the buzzer prompt tone frequency as the sleeping comfort frequency and reduces the wind speed to the sleeping comfort wind speed, thereby reducing the influence on the user in sleeping and enabling the user to sleep more comfortably, so the air conditioner is called to enter the sleeping comfort mode.
In an embodiment of the present invention, on the basis of the method shown in fig. 4, after step S10243, as shown in fig. 6, after the controller controls the display screen to be normally on, the method further includes the steps of:
s301: the air conditioner restores the buzzer prompt tone frequency responding to the user instruction to the standard frequency and restores the buzzer prompt tone time length to be the standard time length;
when the display screen is normally bright, namely the current indoor light is strong, the user is not in a sleep state, the buzzer prompt tone frequency is correspondingly restored to the standard frequency, the buzzer prompt tone duration is restored to the standard duration, and the user can normally use the air conditioner.
S302: and the controller judges whether the normally-on time of the display screen is greater than or equal to the fifth time length, and if so, the air speed of the air conditioner is restored to the standard air speed.
In order to avoid misjudgment of the sleep of the user, a fifth time length is set, specifically, the fourth time length is 10 minutes, when the controller detects that the display screen is normally on for more than 10 minutes, that is, the user does not have a rest, the air speed of the air conditioner is recovered, so that the user can normally use the air conditioner. Namely, the air conditioner exits the sleep mode.
In one embodiment of the present invention, there are two ways for the air conditioner to exit the sleep mode: a method for automatically setting the display to be normally bright by sensing the indoor illumination intensity through the photosensitive element, as described in steps S10241-S10243, and then exiting the sleep mode by the judgment of steps S301 and S302; one is that when the controller receives a new control command input by the user, the controller also indicates that the user has no longer had a rest, and then controls the air conditioner to exit the sleep mode.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The method is applied to a brightness control device of an air conditioner display screen, the device comprises a photosensitive assembly (1), a controller (2) and a display screen (3), the photosensitive assembly (1) and the display screen (3) are respectively connected with the controller (2), and the brightness control device is characterized by further comprising a control end (4), the control end (4) is connected with the controller (2), and the control end (4) can send a control instruction to the controller (2) to directly control the brightness of the display screen (3);
the method comprises the following steps:
step 1: starting an air conditioner;
step 2: the controller controls the brightness of the display screen according to the automatic brightness control mode;
and step 3: judging whether the indoor light intensity detection fails or not by a controller of the air conditioner, and if so, executing a step 4;
and 4, step 4: the controller controls the brightness of the display screen according to a manual brightness control mode;
the step 3 comprises the following steps:
the controller judges whether the received light intensity information is changed within a first time length, if the received light intensity information is changed, the indoor light intensity detection is judged to be invalid, or the indoor light intensity detection is judged to be invalid if the received light intensity information is not changed, and the light intensity detection is judged to be invalid.
2. The method of claim 1, wherein the step 2 comprises:
step 21: the photosensitive assembly detects the indoor illumination intensity;
step 22: the photosensitive component generates light intensity information according to the detected illumination intensity and sends the light intensity information to the controller;
step 23: the controller receives light intensity information;
step 24: and the controller adjusts the brightness of the display screen according to the light intensity information.
3. The method of claim 1, wherein the step 4 comprises:
the controller detects whether a manual control signal from the control end is received or not in real time, and if yes, the brightness of the display screen is adjusted according to the content corresponding to the manual control signal.
4. The method of claim 2, wherein the step 24 comprises:
step 241: the controller judges the type of the light intensity information, if the light intensity information is a voltage signal and the amplitude of the voltage signal is higher than a first voltage threshold, step 242 is executed, and if the light intensity information is a voltage signal and the amplitude of the voltage signal is lower than a second voltage threshold, step 243 is executed;
step 242: the controller judges whether the duration time of the voltage signal is greater than or equal to the second time length, if so, the display screen is controlled to be extinguished, and if not, the step 241 is returned;
step 243: the controller determines whether the duration of the voltage signal is greater than or equal to a third time duration, if so, controls the display screen to be normally on, and if not, returns to step 241.
5. The method of claim 1, further comprising:
the air conditioner reports the fault information corresponding to the failure of the light intensity detection.
6. The method of claim 4, after step 242, further comprising:
step 201: the air conditioner sets the frequency of a buzzer prompt tone responding to a user instruction as a sound sleep frequency and sets the time length of the buzzer prompt tone as a sound sleep time length.
7. The method of claim 4, after step 243, further comprising:
step 301: the air conditioner restores the buzzer prompt tone frequency responding to the user instruction to the standard frequency and restores the buzzer prompt tone time length to be the standard time length.
8. The method of claim 6, after step 201, further comprising:
step 202: the controller judges whether the display screen extinguishing time is larger than or equal to the fourth time length, and if so, the air speed of the air conditioner is set to be the sleeping air speed.
9. The method of claim 7, wherein after step 301, the method further comprises:
step 302: and the controller judges whether the normally-on time of the display screen is greater than or equal to the fifth time length, and if so, the air speed of the air conditioner is restored to the standard air speed.
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| CN110608522B (en) * | 2019-08-21 | 2021-05-28 | 珠海格力电器股份有限公司 | Air conditioner operation control method, readable storage medium and air conditioner |
| CN111537898B (en) * | 2020-04-21 | 2022-07-08 | 珠海拓芯科技有限公司 | Control method and device for low-power prompt of air conditioner remote controller, remote controller and storage medium |
| CN112379609B (en) * | 2020-11-09 | 2022-04-29 | 珠海格力电器股份有限公司 | Display panel having control function, control method of display panel, and storage medium |
| CN114126137A (en) * | 2021-11-24 | 2022-03-01 | 欧普照明股份有限公司 | LED driving circuit with photosensitive inductive switch and method |
| CN115950058B (en) * | 2022-12-26 | 2024-06-04 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
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| US20070244572A1 (en) * | 2006-04-12 | 2007-10-18 | Ryan Neil Farr | Automation systems and methods |
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