CN217330178U - Display control circuit and air conditioner - Google Patents
Display control circuit and air conditioner Download PDFInfo
- Publication number
- CN217330178U CN217330178U CN202220542175.5U CN202220542175U CN217330178U CN 217330178 U CN217330178 U CN 217330178U CN 202220542175 U CN202220542175 U CN 202220542175U CN 217330178 U CN217330178 U CN 217330178U
- Authority
- CN
- China
- Prior art keywords
- display
- module
- sampling
- signal
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005070 sampling Methods 0.000 claims abstract description 100
- 238000001514 detection method Methods 0.000 claims abstract description 62
- 239000003086 colorant Substances 0.000 claims abstract description 14
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000000875 corresponding effect Effects 0.000 description 36
- 239000007789 gas Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 10
- 239000000523 sample Substances 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 101150075681 SCL1 gene Proteins 0.000 description 2
- 150000001555 benzenes Chemical class 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 101150111792 sda1 gene Proteins 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 102100022193 Glutamate receptor ionotropic, delta-1 Human genes 0.000 description 1
- 102100022192 Glutamate receptor ionotropic, delta-2 Human genes 0.000 description 1
- 101000900493 Homo sapiens Glutamate receptor ionotropic, delta-1 Proteins 0.000 description 1
- 101000900499 Homo sapiens Glutamate receptor ionotropic, delta-2 Proteins 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 230000009692 acute damage Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 231100000025 genetic toxicology Toxicity 0.000 description 1
- 230000001738 genotoxic effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application discloses a display control circuit and an air conditioner, wherein the display control circuit comprises a detection module, a control module and a display module; the detection module is used for sampling the content of total volatile organic compounds in the air to obtain corresponding sampling signals and outputting the sampling signals to the control module; the control module is used for outputting a corresponding control signal to the display module according to the sampling signal; the display module is used for adjusting the display color according to the control signal so as to represent different air qualities through different display colors. The different air quality of demonstration colour through adjusting display module comes the sign to this application, can be more directly perceived striking show the testing result of current air quality, the user according to display module's demonstration colour alright know the good and bad degree of current air quality immediately, practiced thrift check-out time, improved user experience greatly and felt.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a display control circuit and an air conditioner.
Background
Total Volatile Organic Compounds (TVOC) are the general names of indoor Volatile Organic Compounds, TVOC refers to Organic matters with saturated vapor pressure of more than 133.32Pa at room temperature, the boiling point of the TVOC is 50-250 ℃, the TVOC can exist in the air in a form of evaporation at room temperature, and the toxicity, irritation, carcinogenicity and special smell of the TVOC can affect the skin and mucous membranes and cause acute damage to human bodies.
Along with resident's improvement of living standard, indoor air quality detects and receives user's more and more attention, and at present, the user can detect indoor TVOC through purchasing the air quality detector, but, the current air quality detector is not directly perceived to the demonstration of testing result, and the user need look over the description and just can know the air quality good and bad degree that current testing result corresponds.
SUMMERY OF THE UTILITY MODEL
The application provides a display control circuit and an air conditioner, and aims to solve the problem that an air quality detector in the prior art cannot visually display a detection result.
In a first aspect, the present application provides a display control circuit, which includes a detection module, a control module and a display module, wherein the control module is electrically connected to both the detection module and the display module respectively;
the detection module is used for sampling the content of total volatile organic compounds in the air to obtain corresponding sampling signals and outputting the sampling signals to the control module;
the control module is used for outputting a corresponding control signal to the display module according to the sampling signal;
and the display module is used for adjusting the display color according to the control signal so as to represent different air qualities through different display colors.
In one possible implementation manner of the present application, the display module includes a driving unit and a display unit, and the driving unit is electrically connected to the control module and the display unit respectively;
the driving unit is used for obtaining a pulse width modulation signal according to the control signal and outputting the pulse width modulation signal to the display unit;
and the display unit is used for adjusting display colors according to the pulse width modulation signals.
In one possible implementation manner of the present application, the display unit includes at least one set of rgb three-color lamps, and each set of rgb three-color lamps is configured to adjust a respective light emitting state according to a pulse width modulation signal to adjust a display color.
In a possible implementation manner of the present application, three anodes of each group of red, green and blue three-color lamps are respectively and correspondingly electrically connected with three anode driving terminals of the driving unit, and after three cathodes of each group of red, green and blue three-color lamps are electrically connected, the three anodes are electrically connected with the cathode driving terminals of the corresponding driving unit.
In one possible implementation manner of the present application, the detection module includes a sensor detection unit, and the sensor detection unit is configured to sample the content of the total volatile organic compound to obtain a sampling value, encode the sampling value, and output the obtained sampling signal to the control module.
In a possible implementation manner of the present application, the control module is configured to convert the sampling signal into a sampling value according to a preset value comparison table, and obtain the control signal according to the sampling value.
In one possible implementation manner of the present application, the detection module further includes a level shift communication unit, and the level shift communication unit is electrically connected to both the sensor detection unit and the control module;
and the level conversion communication unit is used for receiving the sampling signal output by the sensor detection unit and converting the working state according to the sampling signal so as to output the code corresponding to the sampling signal to the control module.
In one possible implementation manner of the present application, the control module works at a first voltage, the sensor detection unit works at a second voltage, and the level conversion communication unit includes a voltage regulator, where the voltage regulator is configured to convert the first voltage into the second voltage, so as to output a code corresponding to the sampling signal to the control module through the first voltage and the second voltage.
In a possible implementation manner of the present application, the level conversion communication unit includes a first power switch tube, a gate of the first power switch tube is electrically connected to an output terminal of the voltage stabilizer, a source of the first power switch tube is electrically connected to an output terminal of the sensor detection unit, and a drain of the first power switch tube is electrically connected to both an input terminal of the voltage stabilizer and an input terminal of the control module.
In a second aspect, the present application further provides an air conditioner including the display control circuit of the first aspect.
From the above, the present application has the following advantageous effects:
in the application, the content of TVOC in the air is sampled by the detection module, and a corresponding sampling signal is output to the control module, the control module outputs a corresponding control signal to the display module according to the sampling signal, and finally the display module adjusts the display color according to the received control signal, therefore, different air qualities are represented through different display colors, compared with the prior art that a user can know the air quality degree corresponding to the detection result by contrasting and checking specifications, the method and the device for representing the air quality represent different air qualities by adjusting the display colors of the display module, the detection result that can be more directly perceived striking show current air quality, the user according to display module's demonstration colour alright know the good and bad degree of current air quality immediately, practiced thrift check-out time, improved user experience greatly and felt, enlarged display control circuit's application scope.
Drawings
In order to more clearly illustrate the technical solutions in the present application, the drawings that are needed to be used in the description of the present application will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive effort.
FIG. 1 is a functional block diagram of a display control circuit provided in an embodiment of the present application;
fig. 2 is a schematic circuit diagram of a driving unit provided in the embodiment of the present application;
FIG. 3 is a schematic circuit diagram of a display unit provided in an embodiment of the present application;
FIG. 4 is a schematic circuit diagram of a detection module provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of an air conditioner provided in the embodiment of the present application.
Detailed Description
The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Before introducing the display control circuit and the air conditioner of the present application, a brief description will be given to an air quality detector in the prior art.
After detecting the air quality in the current environment, such as the TVOC content, the current air quality detector usually displays a detection value on a display screen, and since a user is not an environment detection professional, the user is insensitive to the detection value, and the user cannot accurately know the quality degree of the current air quality according to the detection value, the user needs to check a specification provided by a manufacturer to know the quality degree of the air corresponding to the detection value.
In addition, if the user is far away from the display screen of the air quality detector or the air quality detector is used at night or in an environment with weak light, the user may not be able to accurately and intuitively read the detection value displayed on the display screen.
In view of the above, the present application provides a display control circuit and an air conditioner to overcome the above problems, and the following detailed description is provided for the display control circuit and the air conditioner.
First, please refer to fig. 1, wherein fig. 1 is a schematic diagram of a functional module of a display control circuit provided in an embodiment of the present application. The display control circuit 10 may include a detection module 101, a control module 102, and a display module 103, wherein the control module 102 may be electrically connected to both the detection module 101 and the display module 103, respectively.
The detection module 101 may be configured to sample the content of total volatile organic compounds in the air, obtain a corresponding sampling signal, and output the corresponding sampling signal to the control module 102; the control module 102 may be configured to output a corresponding control signal to the display module 103 according to the sampling signal; the display module 103 may be configured to adjust the display color according to the control signal to characterize different air qualities by different display colors.
It is understood that Total Volatile Organic Compounds (TVOCs) are mainly derived from combustion products such as coal and natural gas, smoke of smoking, heating and cooking, etc., and adhesives, paints, plates, wall papers, etc. in building and finishing materials indoors. TVOC has pungent smell, and some compounds have genotoxicity and can cause the immune level of an organism to be disordered and influence the function of a central nervous system, so that the indoor detection of the content of TVOC in the air is one of important measures for ensuring the personal safety.
In the embodiment of the present application, the detection module 101 may sample the content of the total volatile organic compound in the air, and it can be understood that, in the detection process, the detection module 101 may be placed in an environment to be detected, so that the detection module is fully contacted with the air, and the detection module 101 may sample the TVOC content in the current environment, and then obtain a corresponding sampling signal to output to the control module 102.
It can be understood that the sampling frequency or the sampling period of the detection module 101 may be controlled according to a preset time interval or a human start/stop, for example, after the detection module 101 is placed in an environment to be detected, the sampling period may be set, so that the detection module 101 may periodically sample the TVOC content in the current environment according to the set sampling period; or, the user may select to start the sampling of the detection module 101 according to the detection requirement, so as to complete the current sampling of the TVOC content, and the sampling setting of the detection module 101 may be selected according to the actual application scenario, which is not limited herein.
In the embodiment of the present application, the content of the TVOC in the detection module 101 can the sampling air is concentration, because the TVOC gas can be volatile gases such as formaldehyde and benzene, ammonia, xylene in the indoor environment, consequently, this detection module 101 can be integrated with the TVOC sensor, and the high sensitivity gas detection probe through the TVOC sensor comes the concentration of sampling indoor TVOC to obtain corresponding sampling signal output to control module 102.
It should be noted that, in some other application scenarios, the detection module 101 may further integrate an existing benzene series detection sensor or detector, and the sampling signal is more accurate by sampling the benzene series in the indoor air.
In this embodiment, the control module 102 may output a control signal corresponding to the sampling signal to the display module 103 according to the received sampling signal, specifically, a correspondence table between the sampling signal and the control signal may be preconfigured in the control module 102, that is, a certain sampling signal and a control signal corresponding to the sampling signal may be recorded in the correspondence table in a correlated manner, so that after the control module 102 receives the sampling signal, the control signal corresponding to the sampling signal may be found by calling the correspondence table, and the control module 102 may output the corresponding control signal to the display module 103.
It can be understood that the control module 102 may be a main control chip such as a Micro Controller Unit (MCU) or a single chip microcomputer, for example, if the display control circuit of the embodiment of the present application is applied to an air quality detector, the control module 102 may be the main control chip of the air quality detector, if the display control circuit is applied to other electrical equipment, the control module 102 may be the main control chip of the electrical equipment, the type of the control module 102 may be determined according to an actual application scenario, and is not specifically limited herein.
In this embodiment, the display module 103 may adjust its display color according to the received control signal, so as to represent different air qualities by different display colors, specifically, in this embodiment, the display module 103 may be any one of the existing light emitting devices or a combination of multiple light emitting devices, for example, the display module 103 may include a light emitting diode, or a combination of the two.
For example, the display colors of the display module 103 include green, orange and red, where green indicates that the TVOC concentration is low and basically harmless to human health, orange indicates that the TVOC concentration is medium and slightly harmful to human health, and red indicates that the TVOC concentration is high and greatly harmful to human health. If the current display color of the display module 103 is green, the user can know that the TVOC concentration in the current environment is low and the air quality is good, and does not need to worry about the harm to health; if the current display color of the display module 103 is orange, the user can clearly know that the TVOC concentration in the current environment is medium and the air quality is medium, and can take measures such as windowing ventilation or opening an indoor fresh air system to improve the current environment; if the current display color of the display module 103 is red, the user can know that the TVOC concentration in the current environment is high and the air quality is poor, and needs to immediately take measures such as opening an air purifier and an indoor fresh air system to improve the current environment, so that the user can directly and clearly know the indoor air quality through the display color of the display module 103.
In the embodiment of the application, the content of the TVOC in the air is sampled by the detection module 101, and a corresponding sampling signal is output to the control module 102, the control module 102 outputs a corresponding control signal to the display module 103 according to the sampling signal, and finally the display module 103 adjusts the display color according to the received control signal, so that different air qualities are represented by different display colors, compared with the prior art in which a user needs to check a specification to know the air quality level corresponding to a detection result, the application represents different air qualities by adjusting the display color of the display module 103, so that the detection result of the current air quality can be more visually and prominently displayed, the user can immediately know the air quality level according to the display color of the display module 103, the detection time is saved, and the user experience is greatly improved, the display control circuit can be applied to any electrical equipment, and the application range of the display control circuit is expanded.
Continuing to refer to fig. 1, in some embodiments of the present application, the display module 103 may further include a driving unit 1031 and a display unit 1032, the driving unit 1031 may be electrically connected to both the control module 102 and the display unit 1032, respectively; the driving unit 1031 may be configured to obtain a pulse width modulation signal according to the control signal and output the pulse width modulation signal to the display unit 1032; the display unit 1032 may be used to adjust the display color according to the pulse width modulation signal.
It is understood that, after receiving the control signal output by the control module 102, the driving unit 1031 may output a corresponding pulse width modulation signal to the display unit 1032 in response to the control signal, so as to adjust the display color of the display unit 1032.
Specifically, please refer to fig. 2, fig. 2 is a schematic circuit diagram of a driving unit provided in the embodiment of the present application, the driving unit 1031 may include a driving chip IC5 with a model of Aip33624, and the control module 102 is a micro control unit MCU, wherein the driving chip IC5 and the MCU are in communication connection through a bidirectional two-wire system synchronous serial bus, specifically, a first data terminal SDA1 of the MCU is connected to a 15 th pin, i.e., a data input terminal DIN, of the driving chip IC5, and a first control terminal SCL1 of the MCU is connected to a 14 th pin, i.e., a clock input terminal SCLK, of the driving chip IC 5.
It should be noted that the type of the driver IC5 can be selected according to the actual application scenario, and this embodiment is only to provide an example and is not limited in particular.
In a specific implementation, in order to ensure that the control signal received by the driver chip IC5 has no noise, any existing filter circuit may be connected between the MCU and the driver chip IC5, as shown in fig. 2, in this embodiment, the filter circuit may include a first RC low-pass filter unit formed by an eighth resistor R8 and a ninth capacitor C9, and a second RC low-pass filter unit formed by a ninth resistor R9 and a tenth capacitor C10.
Specifically, the first data terminal SDA1 of the MCU may be connected to one end of the eighth resistor R8, the other end of the eighth resistor R8 may be connected to the ninth capacitor C9 and the data input terminal DIN of the driver chip IC5, respectively, and the control signal on the data line may be filtered by the first RC low-pass filtering unit, so as to ensure that the signal received by the data input terminal DIN of the driver chip IC5 has no noise interference.
Similarly, the first control terminal SCL1 of the MCU may be connected to one end of the ninth resistor R9, the other end of the ninth resistor R9 may be connected to the tenth capacitor C10 and the clock input terminal SCLK of the driver chip IC5, respectively, and the control signal on the clock line may be filtered by the second RC low-pass filtering unit, so as to ensure that the signal received by the clock input terminal SCLK of the driver chip IC5 has no noise interference, thereby ensuring that the control of the display module 103 is accurate.
In addition, in the embodiment of the present application, in order to ensure that both the data input DIN and the clock input SCLK of the MCU are always maintained at a high level, both the data input DIN and the clock input SCLK of the MCU may be connected to the +5V power supply through a pull-up resistor, specifically, the data input DIN of the MCU may be connected to the +5V power supply through the tenth resistor R10, and the clock input SCLK of the MCU may be connected to the +5V power supply through the eleventh resistor R11.
It should be noted that, in this embodiment, the premise that both the data input terminal DIN and the clock input terminal SCLK of the MCU are connected to the +5V power supply through the pull-up resistor is that the operating voltage of the MCU is +5V, and in some other application scenarios, the power supply connected to the pull-up resistor may be determined according to the specific type of the MCU, for example, if the operating voltage of the MCU is +3.3V, the pull-up resistor is connected to the +3.3V power supply.
Referring to fig. 3, fig. 3 is a schematic circuit diagram of a display unit provided in an embodiment of the present application, in some embodiments of the present application, the display unit 1032 may include at least one set of rgb three-color lamps, each set of the rgb three-color lamps may be configured to adjust a respective light emitting state according to a pulse width modulation signal to adjust a display color, specifically, three anodes of each set of the rgb three-color lamps may be electrically connected to three anode driving terminals of the driving unit 1031, respectively, and after being electrically connected to three cathodes of each set of the rgb three-color lamps, the three cathodes of each set of the rgb three-color lamps are electrically connected to a cathode driving terminal of the corresponding driving unit 1031.
As shown in fig. 3, in a specific implementation, the display unit 1032 includes eight sets of three color lights of red, green and blue, i.e., a first three color light LED1, a second three color light LED2, a second three color light LED …, and an eighth three color light LED8, wherein the 10 th pin of the driving chip IC5, i.e., the eighth anode driving terminal SEG8, is electrically connected to the anode of the red light of each set of three color lights of red, green and blue, respectively, the 11 th pin of the driving chip IC5, i.e., the ninth anode driving terminal SEG9, is electrically connected to the anode of the green light of each set of three color lights of red, green and blue, respectively, and the 12 th pin of the driving chip IC5, i.e., the tenth anode driving terminal SEG10, is electrically connected to the anode of the blue light of each set of three color lights of red, green and blue, respectively.
The eighth anode driving terminal SEG8 of the driving chip IC5 may output a first Pulse Width Modulation (PWM) signal for controlling the red light emitting state, that is, on or off, and the driving chip IC5 may adjust the duty ratio of the output first PWM signal according to the received control signal, so as to adjust the emitting time duration of each red light in one electrical cycle.
Similarly, the ninth anode-driving terminal SEG9 of the driver IC5 may output a second pwm signal for controlling the light-emitting state of the green light, i.e., on or off, and the driver IC5 may adjust the duty ratio of the output second pwm signal according to the received control signal, so as to adjust the light-emitting time of each green light in one electrical cycle.
Similarly, the tenth anode driving terminal SEG10 of the driving chip IC5 may output a third pwm signal for controlling the lighting state of the blue lamp, i.e., on or off, and the driving chip IC5 may adjust the duty ratio of the output third pwm signal according to the received control signal, so as to adjust the lighting time duration of each blue lamp in one electrical cycle.
In summary, the three anode driving terminals of the driving chip IC5 can respectively adjust the light emitting time lengths of the red light, the green light, and the blue light in each group of the red, green, and blue lights by outputting the pulse width modulation signals with different duty ratios to each group of the red, green, and blue lights, thereby realizing the display of different display colors.
It can be understood that eight cathode driving terminals, such as the first cathode driving terminal GRID1, of the driving chip IC5 may be correspondingly connected to three cathodes of the first rgb three-color light LED1, the second cathode driving terminal GRID2 may be correspondingly connected to three cathodes of the second rgb three-color light LED2, and so on, the eighth cathode driving terminal GRID8 may be correspondingly connected to three cathodes of the eighth rgb three-color light LED8, and the eight cathode driving terminals of the driving chip IC5 may respectively output low level signals to the corresponding rgb three-color light, so that the corresponding rgb three-color light can be turned on to emit light.
It should be noted that the number of the red, green, and blue lights may be selected according to an actual application scenario, and the eight groups of the red, green, and blue lights in this embodiment are only an example, and are not limited herein.
Referring to fig. 1, in some embodiments of the present application, the detecting module 101 may include a sensor detecting unit 1011, and the sensor detecting unit 1011 may be configured to sample the content of the total volatile organic compound to obtain a sampling value, encode the sampling value, and output the sampling signal to the control module 102.
The control module 102 may be configured to convert the sampling signal into a sampling value according to a preset value comparison table, and obtain a control signal according to the sampling value.
Specifically, as shown in fig. 4, fig. 4 is a schematic circuit schematic diagram of a detection module provided in this embodiment of the present application, the sensor detection unit 1011 selects a gas sensor IC2 with a model number of ENS160, after a probe of the gas sensor IC2 samples a TVOC concentration in air, a sampled sample value is encoded to obtain a sampling signal, and then a communication connection with the MCU is realized through a bidirectional two-wire system synchronous serial bus, specifically, the second data terminal SDA2 of the MCU is connected to the 1 st pin of the gas sensor IC2, i.e., the data output terminal SDA/MOSI, and the second control terminal SCL2 of the MCU is connected to the 2 nd pin of the gas sensor IC2, i.e., the clock output terminal SCL/CLK.
It should be noted that the type of the gas sensor IC2 can be selected according to the actual application scenario, and this embodiment is merely an example, and is not limited in particular.
Specifically, a numerical value comparison table can be preset in the MCU, the numerical value comparison table can correspondingly store the corresponding relationship between the coded sampling signal and the TVOC concentration, that is, a certain sampling signal corresponds to a certain TVOC concentration, or a certain sampling signal corresponds to a TVOC concentration within a certain range, after the MCU receives the sampling signal, the preset numerical value comparison table can be called, and table lookup is performed to obtain the TVOC concentration corresponding to the sampling signal, that is, the sampling value, thereby obtaining the corresponding control signal according to the sampling value.
For example, the sampling signal output by the gas sensor IC2 may be a coded signal such as 1001, 1011, etc., and if the sampling signal is 1100, after the sampling signal is input to the MCU, the MCU may look up the sampling value corresponding to 1100 in the value comparison table according to the received sampling signal, and if the sampling value corresponding to the sampling signal 1100 in the value comparison table is 0.2mg/m 3 Then the MCU can be 0.2mg/m according to the sampling value 3 And determining the output control signal.
Specifically, the MCU may preset a mapping table of the sampling value and the control signal, for example, the sampling value is less than 0.3mg/m 3 When the sampling value is 0.3mg/m, the first control signal is output 3 To 1mg/m 3 Then outputting a second control signal with a sampling value larger than 1mg/m 3 Then, the third control signal is output.
It can be understood that the number of intervals into which the sampling value is divided and the endpoint value corresponding to each interval may be determined according to an actual application scenario, and are not limited herein.
Referring to fig. 1, in some embodiments of the present application, the detecting module 101 may further include a level shift communication unit 1012, and the level shift communication unit 1012 may be electrically connected to both the sensor detecting unit 1011 and the control module 102; the level conversion communication unit 1012 may be configured to receive the sampling signal output by the sensor detection unit 1011 and convert the operating state according to the sampling signal, so as to output a code corresponding to the sampling signal to the control module 102.
Specifically, as shown in fig. 4, the control module 102 operates at a first voltage, i.e., the operating voltage of the MCU is +5V, the sensor detecting unit 1011 operates at a second voltage, i.e., the operating voltage of the gas sensor IC2 is +3.3V, and the level conversion communication unit 1012 may include a voltage regulator IC3, and the voltage regulator IC3 may be configured to convert the first voltage into the second voltage, so as to output a code corresponding to the sampling signal to the control module 102 through the first voltage and the second voltage.
Specifically, pin 3, i.e., input terminal VIN, of regulator IC3 is connected to a +5V power supply and a twenty-third capacitor C23 to ground, and pin 2, i.e., output terminal VOUT, of regulator IC3 outputs a +3.3V voltage to provide operating voltage for gas sensor IC 2.
Taking data transmission between the second data terminal SDA2 of the MCU and the data output terminal SDA/MOSI of the gas sensor IC2 as an example, in one specific implementation, the level-shifting communication unit 1012 may include a first power switch Q1, a gate of the first power switch Q1 is electrically connected to the output terminal VOUT of the regulator IC3 through a thirty-first resistor R31, i.e., connected to a +3.3V power supply, a source of the first power switch Q1 is electrically connected to the data output terminal SDA/MOSI of the gas sensor IC2, and is further connected to a +3.3V power supply through a twenty-first resistor R21, a drain of the first power switch Q1 is electrically connected to the input terminal VIN of the regulator IC3 through a thirty-first resistor R30, i.e., connected to a +5V power supply, and a drain of the first power switch Q1 is further electrically connected to the second data terminal SDA2 of the MCU to transmit a sampling signal.
When the data output end SDA/MOSI of the gas sensor IC2 outputs a high-level signal, the first power switch tube Q1 is not conducted, at the moment, the potential at the lower end of the thirtieth resistor R30 is at a high level of +5V, namely, the sampling signal output to the MCU is a high-level signal; on the contrary, when the data output terminal SDA/MOSI of the gas sensor IC2 outputs a low level signal, the first power switch Q1 is turned on, and at this time, the potential at the lower end of the thirty-third resistor R30 is at a low level of +3.3V, that is, the sampling signal output to the MCU is a low level signal, so that the code corresponding to the sampling signal can be output to the control module 102 by the on or off state of the first power switch Q1.
For example, if the sampling signal is 1100, when the data output terminal SDA/MOSI of the gas sensor IC2 outputs the first bit code "1" of the sampling signal, the first power switch Q1 is not turned on, the MCU receives the high level signal "1", when the data output terminal SDA/MOSI of the gas sensor IC2 outputs the second bit code "1" of the sampling signal, the first power switch Q1 is still turned off, the MCU still receives the high level signal "1", when the data output terminal SDA/MOSI of the gas sensor IC2 outputs the third bit code "0" of the sampling signal, the first power switch Q1 is turned on, the MCU receives the low level signal "0", when the data output terminal SDA/MOSI of the gas sensor IC2 outputs the fourth bit code "0" of the sampling signal, the first power switch Q1 is still turned on, the MCU receives the low level signal "0", and thus, the MCU may receive the code 1100 corresponding to the sampled signal.
It can be understood that the data transmission between the second control terminal SCL2 of the MCU and the clock output terminal SCL/CLK of the gas sensor IC2 is the same as the data transmission principle between the second data terminal SDA2 of the MCU and the data output terminal SDA/MOSI of the gas sensor IC2, and reference may be made to the description in the foregoing embodiments, and details are not repeated here.
On the basis of the foregoing embodiments, the present application further provides an air conditioner, please refer to fig. 5, fig. 5 is a schematic structural diagram of the air conditioner provided in the embodiments of the present application, the air conditioner 50 may include the display control circuit 10 in any of the foregoing embodiments, and the control module 102 in the display control circuit 10 may reuse a microcontroller of the air conditioner 50, so as to save cost.
In the process of using the air conditioner 50, the display control circuit 10 may prompt the TVOC concentration in the current environment of the user, i.e., the quality of the indoor air, by displaying different display colors on the display module 103, so that the user may obtain a good perception effect.
For specific functions and implementation effects of each module and unit in the display control circuit 10, reference may be made to descriptions of the display control circuit in any embodiment corresponding to fig. 1 to fig. 4, which are not described herein again in detail.
It can be understood that the display control circuit 10 according to the embodiment of the present application may also be integrated into other electrical devices, for example, a refrigerator, a television, a computer, and other common electrical devices, and the selection may be specifically performed according to actual situations.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, which are not described herein again.
In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing embodiments, which are not described herein again.
The display control circuit and the air conditioner provided by the present application are introduced in detail above, and specific examples are applied in the present application to explain the principle and the implementation of the present application, and the above description is only used to help understand the circuit and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A display control circuit is characterized by comprising a detection module, a control module and a display module, wherein the control module is electrically connected with the detection module and the display module respectively;
the detection module is used for sampling the content of total volatile organic compounds in the air to obtain corresponding sampling signals and outputting the sampling signals to the control module;
the control module is used for outputting a corresponding control signal to the display module according to the sampling signal;
and the display module is used for adjusting the display color according to the control signal so as to represent different air qualities through different display colors.
2. The display control circuit according to claim 1, wherein the display module includes a driving unit and a display unit, the driving unit being electrically connected to both the control module and the display unit, respectively;
the driving unit is used for obtaining a pulse width modulation signal according to the control signal and outputting the pulse width modulation signal to the display unit;
and the display unit is used for adjusting the display color according to the pulse width modulation signal.
3. The display control circuit of claim 2, wherein the display unit comprises at least one set of three color lamps of red, green and blue, each set of three color lamps of red, green and blue being used for adjusting respective lighting states according to the pulse width modulation signals to adjust the display color.
4. The display control circuit according to claim 3, wherein three anodes of each group of the red, green and blue three-color lamps are electrically connected to three anode driving terminals of the driving unit, respectively, and after three cathodes of each group of the red, green and blue three-color lamps are electrically connected, the three anodes are electrically connected to the cathode driving terminals of the corresponding driving unit.
5. The display control circuit of claim 1, wherein the detection module comprises a sensor detection unit, and the sensor detection unit is configured to sample the content of the total volatile organic compound to obtain a sampling value, encode the sampling value, and output the sampling signal to the control module.
6. The display control circuit of claim 5, wherein the control module is configured to convert the sampling signal into the sampling value according to a preset value comparison table, and obtain the control signal according to the sampling value.
7. The display control circuit of claim 5, wherein the detection module further comprises a level shift communication unit electrically connected to both the sensor detection unit and the control module, respectively;
the level conversion communication unit is used for receiving the sampling signal output by the sensor detection unit and converting the working state according to the sampling signal so as to output the code corresponding to the sampling signal to the control module.
8. The circuit according to claim 7, wherein the control module operates at a first voltage, the sensor detection unit operates at a second voltage, and the level conversion communication unit comprises a voltage regulator configured to convert the first voltage into the second voltage, so as to output a code corresponding to the sampling signal to the control module via the first voltage and the second voltage.
9. The display control circuit of claim 8, wherein the level conversion communication unit comprises a first power switch, a gate of the first power switch is electrically connected to the output terminal of the voltage regulator, a source of the first power switch is electrically connected to the output terminal of the sensor detection unit, and a drain of the first power switch is electrically connected to both the input terminal of the voltage regulator and the input terminal of the control module.
10. An air conditioner characterized by comprising the display control circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220542175.5U CN217330178U (en) | 2022-03-11 | 2022-03-11 | Display control circuit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220542175.5U CN217330178U (en) | 2022-03-11 | 2022-03-11 | Display control circuit and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217330178U true CN217330178U (en) | 2022-08-30 |
Family
ID=83000862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220542175.5U Active CN217330178U (en) | 2022-03-11 | 2022-03-11 | Display control circuit and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217330178U (en) |
-
2022
- 2022-03-11 CN CN202220542175.5U patent/CN217330178U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109951927A (en) | A kind of intelligent Light-control System and its light-dimming method | |
| CN217330178U (en) | Display control circuit and air conditioner | |
| CN215068544U (en) | Fire alarm capable of detecting ambient light and automatically adjusting light brightness | |
| CN217330179U (en) | Air quality adjusting circuit and air conditioner | |
| CN106768023B (en) | A kind of multifunctional intellectual detection equipment | |
| CN105527993A (en) | Multi-path remote intelligent temperature control device and multi-path remote intelligent temperature control system | |
| CN108549274A (en) | A kind of night self-induction desk lamp | |
| CN106455240A (en) | Multifunctional intelligent LED lighting system | |
| CN215642335U (en) | Intelligent clothes-collecting reminder | |
| CN112492733A (en) | RGB-WW point control intelligent lamp | |
| CN113156342A (en) | Sensor detection circuit and host | |
| CN212934116U (en) | Hot water circulation system control display circuit based on color screen display | |
| CN207004866U (en) | A kind of LED leaded lights fan control circuitry and LED leaded light fan | |
| CN110879369A (en) | Device and method for detecting periodic irregular change current of car lamp | |
| CN107478377B (en) | Double-picture display digital barometer | |
| CN219042045U (en) | Control circuit for lighting device and lighting device thereof | |
| CN216673350U (en) | Light and color adjusting circuit, circuit board and electric appliance | |
| CN213519213U (en) | Display module and display device | |
| CN111988883B (en) | Cabinet lamp, cabinet and control method of cabinet lamp | |
| CN217428393U (en) | Light control module, controller, control assembly and device | |
| CN209992561U (en) | Signal indicator lamp with voltage and current detection function | |
| CN218868212U (en) | Industry leaded light keypad | |
| CN209562856U (en) | Carry the LED light of Baffle Box of Bluetooth | |
| CN218679434U (en) | LED functional lamp controller | |
| CN211402292U (en) | Building indoor pollutant monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |