CN113007856A - Intelligent control system for humidifier and working method - Google Patents

Intelligent control system for humidifier and working method Download PDF

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Publication number
CN113007856A
CN113007856A CN202110413043.2A CN202110413043A CN113007856A CN 113007856 A CN113007856 A CN 113007856A CN 202110413043 A CN202110413043 A CN 202110413043A CN 113007856 A CN113007856 A CN 113007856A
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China
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module
resistor
mcu
main control
atomization
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Chinese (zh)
Inventor
陈玲玲
丁贤和
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Foshan Heruitai Intelligent Technology Co ltd
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Foshan Heruitai Intelligent Technology Co ltd
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Priority to CN202110413043.2A priority Critical patent/CN113007856A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an intelligent control system for a humidifier and a working method thereof. In addition, the user can also receive the humidifier working state information sent by the control system and the related data of the environment where the humidifier is located in real time through the terminal equipment, and the use experience of the user on the humidifier is improved. The invention has the characteristics of convenient and novel control, sensitive control, safety, reliability and simple operation, and has good popularization prospect.

Description

Intelligent control system for humidifier and working method
Technical Field
The invention relates to the field of humidifiers, in particular to an intelligent control system for a humidifier and a working method.
Background
Along with the progress and development of society, intelligent control methods are more and more colorful, and novel contactless intelligent control is more and more favored by consumers in all age groups. At present, humidifiers in the market generally cannot be automatically started at a proper time to replenish environmental moisture, but a user needs to judge according to the air humidity condition and then decide whether to start the humidifier, and then the user controls the start of the humidifier through a manual operation switch when considering to be necessary. This not only needs the user to have an accurate perception to humidity, but also needs each function of the switch of people's own manual control machine, and it is not convenient enough to use, also not intelligent enough.
Therefore, how to improve the structure of the conventional humidifier to solve the above problems is an important technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention discloses an intelligent control system for a humidifier and a working method thereof.
The invention provides an intelligent control system for a humidifier, which comprises a power supply module, and a wireless communication module, a display module, a main control module, an atomization module, a fan module, a temperature and humidity detection module and a water level detection module which are respectively connected with the power supply module;
the wireless communication module is electrically connected with the MCU;
the display module comprises a display screen and a control switch, the display screen and the control switch are both electrically connected with the main control module MCU, the main control module MCU displays information of different working states through the display screen, and the control switch is used for switching different working states;
the atomization module and the fan module are electrically connected with the main control module MCU, the atomization module is used for atomizing water, and the fan module is used for discharging water mist outwards;
the temperature and humidity detection module is electrically connected with the main control module MCU and is used for acquiring temperature and humidity data of the surrounding environment in real time and outputting the environment data to the main control module MCU;
the water level detection module is electrically connected with the main control module MCU and is used for acquiring a liquid level signal in the water tank in real time and outputting the liquid level signal to the main control module MCU.
Preferably, the temperature and humidity detection module comprises a temperature sensing circuit, a humidity sensing circuit, a first conversion circuit, a second conversion circuit, a first capacitive filter and a second capacitive filter;
the humidity sensing circuit comprises a humidity-sensitive resistor RT1, a first resistor R1 and a second capacitor C2, one end of the humidity-sensitive resistor RT1 is connected with the power module, and the other end of the humidity-sensitive resistor RT1, one end of the first resistor R1 and one end of the second capacitor C2 are all connected with the first conversion circuit; the other end of the first resistor R1 and the other end of the second capacitor C2 are grounded; the other end of the first conversion circuit is connected with the first capacitor filter, and the other end of the first capacitor filter is connected with the main control module MCU;
the temperature sensing circuit comprises a thermistor RT2, a second resistor R2 and a first capacitor C1, one end of the thermistor RT2 is connected with the power module, and the other end of the thermistor RT2, one end of the second resistor R2 and one end of the first capacitor C1 are connected with the first conversion circuit; the other end of the second resistor R2 and the other end of the first capacitor C1 are grounded. The other end of the second conversion circuit is connected with the second capacitive filter, and the other end of the second capacitive filter is connected with the main control module MCU.
Preferably, the first capacitor filter comprises an electrolytic capacitor EC1, a third capacitor C3 and a power module which are connected in parallel, the positive electrode of the electrolytic capacitor EC1 and one end of the third capacitor C3 are both connected to a regulated power supply, and the negative electrode of the electrolytic capacitor EC1 and the other end of the third capacitor C3 are grounded; the second capacitive filter has the same structure as the first capacitive filter.
Preferably, the atomization module comprises an atomization power regulating circuit, an ultrasonic atomization circuit and a main control module MCU;
the atomization power regulating circuit comprises a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first diode D2 and an optical coupler U2; one end of the sixth resistor R6 is connected with the MCU, the other end of the sixth resistor R6 is connected with the anode of the LED in the optocoupler U2, and the cathode of the LED in the optocoupler U2 is connected; the power module, the fifth resistor R5, the fourth resistor R4, the first diode D2 and the collector of the optocoupler U2 are sequentially connected, one end of the third resistor R3 is grounded, and the other end is connected between the fourth resistor R4 and the first diode D2;
the ultrasonic atomization circuit is provided with a first terminal, a second terminal and a third terminal, the first terminal is connected with the power supply module, the second terminal is connected with an emitting electrode of the optical coupler U2, and the third terminal is grounded.
Preferably, the FAN module comprises a FAN and a FAN regulating circuit; the fan regulating circuit comprises a second diode D3, a triode Q2, a seventh resistor R7 and an eighth resistor R8; the cathode of the second diode D3 and the power supply module are connected with one end of the fan; the anode of the second diode D3 and the other end of the fan are connected with the collector of the triode Q2; a base electrode of the triode Q2 and one end of the seventh resistor R7 are connected with one end of the eighth resistor R8, and the other end of the eighth resistor R8 is connected with the main control module MCU; the emitter of the transistor Q2 and one end of the seventh resistor R7 are grounded.
Preferably, the wireless communication module comprises a WiFi wireless communication chip, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a fourth capacitor C4 and a fifth capacitor C5; the WiFi wireless communication chip is provided with a first interface, a second interface, a third interface and a fourth interface, and the main control module MCU is provided with a TXD pin and an RXD pin; one end of the ninth resistor R9 is connected to the TXD pin, and the other end is connected to one end of the fourth capacitor C4, one end of the eleventh resistor R11, and the second interface; one end of the tenth resistor R10 is connected with the RXD pin, and the other end of the tenth resistor R10 is connected with one end of the twelfth resistor R12, one end of the fifth capacitor C5 and the third interface; the other end of the eleventh resistor R11, the other end of the twelfth resistor R12 and the first interface are connected with the power supply module; the other end of the fourth capacitor C4, the other end of the fifth capacitor C5 and the fourth interface are grounded.
A method of operation of an intelligent control system for a humidifier, comprising:
s1: starting a humidifier; the wireless communication module and the display module are powered on and in a working state;
s2: collecting temperature and humidity data of the environment where the humidifier is located; the temperature and humidity detection module detects the temperature and humidity of the surrounding environment in real time, converts the acquired environment temperature and humidity resistance value into an AD signal through a conversion circuit and a capacitor filter and outputs the AD signal to the MCU;
s3: determining the temperature and humidity value of the environment where the humidifier is located; the main control module MCU compares the read AD signal with a preset numerical table to obtain an actually measured temperature and humidity value of the current environment;
s4: atomizing; the main control module MCU adjusts the working power of the atomization module and the working voltage of the fan module according to the temperature and humidity value of the current temperature;
the atomization procedure comprises steps a1 to A3:
a1: the actual temperature and humidity value is smaller than a first set value, the duty ratio of a PWM1 driving port of the atomization module and a FAN-PWM2 rotating speed control port of the FAN module is increased by the main control module MCU, so that the output power of the atomization module and the working voltage of the FAN module are reduced, the output of the atomization amount is increased, and the humidifier is in a high-grade working state;
a2: the actual temperature and humidity value is greater than or equal to the first set value and less than or equal to the second set value, and the main control module MCU controls the atomization module and the fan module to operate in a normal working state, so that the humidifier is in a middle working state;
a3: the actual temperature and humidity value is greater than the second set value, the main control module MCU reduces the duty ratio of the PWM1 driving port of the atomization module and the FAN-PWM2 rotating speed control port of the FAN module so as to reduce the output power of the atomization module and the working voltage of the FAN module, and further reduce the output of the atomization amount, so that the humidifier is in a low-gear working state.
Preferably, the first set value is 40% and the second set value is 60%.
Preferably, a weather detection program is further provided between the step S1 and the step S2; the weather detection program acquires weather data through the wireless communication module and turns on or off the humidifying module and the fan module according to the weather data.
Preferably, the weather detection program comprises steps B1 to B3:
b1: the main control module MCU establishes connection with the terminal equipment through the wireless communication module;
b2: the terminal equipment acquires a current weather information numerical value through a weather forecast APP and converts the weather information numerical value into a weather instruction code through a software algorithm;
b3: the terminal device communicates the weather instruction code to the wireless communication module;
b4: the wireless communication module analyzes the weather instruction codes into program instruction codes which can be read by the MCU;
b5: the main control module MCU compares the received program instruction code with a preset value;
b6: when the value of the program instruction code is larger than a preset value, the main control module MCU generates a low level signal and sends the low level signal to the atomization module and the fan module for closing atomization and humidification work; when the value of the program instruction code is smaller than or equal to a preset value, the main control module MCU generates a low level signal and sends the low level signal to the atomization module and the fan module for starting atomization and humidification.
According to the technical scheme, the embodiment of the invention has the following advantages: according to the invention, the intelligent control system is arranged on the humidifier, the main control module in the intelligent control system controls each functional module, and the wireless communication module is adopted to communicate with the terminal equipment, so that the remote control of the humidifier by the terminal equipment is realized, the control method coexists with a control method of physical contact on the humidifier, so that a user can remotely control the humidifier without manual operation, and the humidifier is more convenient to use. In addition, the user can also receive the humidifier working state information sent by the control system and the related data of the environment where the humidifier is located in real time through the terminal equipment, and the use experience of the user on the humidifier is improved. The invention has the characteristics of convenient and novel control, sensitive control, safety, reliability and simple operation, and has good popularization prospect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of an intelligent control system for a humidifier according to the present invention;
fig. 2 is a schematic structural diagram of an intelligent control system for a humidifier according to an embodiment of the present invention, including a main control module MCU and a first capacitive filter;
fig. 3 is a schematic structural diagram of a temperature and humidity detection module of an embodiment of an intelligent control system for a humidifier according to the present invention;
FIG. 4 is a schematic diagram of an atomization module of an embodiment of an intelligent control system for a humidifier according to the present invention;
FIG. 5 is a schematic structural diagram of a blower module of an embodiment of an intelligent control system for a humidifier according to the present invention;
FIG. 6 is a schematic diagram of a wireless communication module of an embodiment of an intelligent control system for a humidifier according to the present invention
Fig. 7 is a schematic workflow diagram of an embodiment of an intelligent control system for a humidifier according to the present invention.
Fig. 8 is a schematic view of a weather detection procedure in an embodiment of the intelligent control system for a humidifier according to the present invention.
Detailed Description
The invention discloses an intelligent control system for a humidifier and a working method thereof.
The technical solutions in the embodiments of the present invention are described in detail and clearly with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.
Referring to fig. 1 to 8, the intelligent control system for a humidifier provided by the present invention includes a power module, and a wireless communication module, a display module, a main control module, an atomization module, a fan module, a temperature and humidity detection module, and a water level detection module, which are respectively connected to the power module;
the wireless communication module is electrically connected with the MCU;
the display module comprises a display screen and a control switch, the display screen and the control switch are both electrically connected with the main control module MCU, the main control module MCU displays information of different working states through the display screen, and the control switch is used for switching different working states;
the atomization module and the fan module are electrically connected with the main control module MCU, the atomization module is used for atomizing water, and the fan module is used for discharging water mist outwards;
the temperature and humidity detection module is electrically connected with the main control module MCU and is used for acquiring temperature and humidity data of the surrounding environment in real time and outputting the environment data to the main control module MCU;
the water level detection module is electrically connected with the main control module MCU and is used for acquiring a liquid level signal in the water tank in real time and outputting the liquid level signal to the main control module MCU.
In the embodiment of the invention, the power supply module consists of a commercial power interface, an alternating current-direct current conversion circuit AC-DC, a direct current conversion circuit DC-DC, a high voltage +24V and a low voltage VCC +5V output interface, and is used for converting commercial power of alternating current 220VAC into two groups of direct current. Wherein, the commercial power of 220VAC of interchange is converted into DC voltage +24V to the first-level conversion, and the second level conversion converts DC voltage 24V into low pressure VCC +5V DC voltage through the LDO module, and low pressure VCC +5V DC voltage provides normal operating voltage for display module, host system MCU, temperature and humidity detection module, water level detection module, wireless communication module, and high pressure +24V DC voltage provides normal operating voltage for atomizing module and fan module.
The main control module MCU is communicated with the movable terminal equipment through the wireless communication module, the wireless communication module and the terminal equipment can be directly connected with each other to intercommunicate information, the wireless communication module and the terminal equipment can be selected to be jointly accessed into the same wireless local area network, the wireless communication module can be accessed into the router to be connected with the internet, and the terminal equipment is remotely interacted through the cloud server to realize communication and intercommunication between a user and the humidifier. The terminal device is a device capable of installing software APP, such as a common mobile phone, a tablet personal computer or other mobile devices provided with intelligent systems, and can realize the operation of the humidifier through the APP, such as adjusting the humidification effect of the humidifier, increasing or reducing the amount of generated fog, timing the switching of the humidifier and the like, so that a user can control all functions of the humidifier without approaching the humidifier, and the control method coexists with a humidifier physical control method and does not interfere with each other. The terminal equipment can acquire the weather condition of the area where the current humidifier is located through the APP, and transmits the weather condition to the main control module MCU through the wireless communication module, so that the humidifier is linked with the actual weather condition. Meanwhile, the humidifier sends the temperature and humidity information of the current environment and some working data of the humidifier to the terminal equipment provided with the APP through the wireless communication module and displays the data, so that a user can master the relevant information of the current environment and the use condition of the humidifier in real time, and the use feeling of the user on the humidifier is increased. Water level detection module adopts level sensor to detect the water level in the water tank, water level signal that experiences the sensor conveys host system MCU, host system MCU compares the water level signal of actual measurement with the settlement signal, reach the deviation, then send out information to display module according to the size of deviation, display module accessible scintillation or the form such as often bright sends the warning, reminder information can also transmit to terminal equipment through wireless communication module, make the user very first time know and in time moisturizing. When the water level is too low, the main control module MCU shuts down the atomization module and the fan module so as to avoid dry burning.
Preferably, the temperature and humidity detection module comprises a temperature sensing circuit, a humidity sensing circuit, a first conversion circuit, a second conversion circuit, a first capacitive filter and a second capacitive filter;
the humidity sensing circuit comprises a humidity-sensitive resistor RT1, a first resistor R1 and a second capacitor C2, one end of the humidity-sensitive resistor RT1 is connected with the power module, and the other end of the humidity-sensitive resistor RT1, one end of the first resistor R1 and one end of the second capacitor C2 are all connected with the first conversion circuit; the other end of the first resistor R1 and the other end of the second capacitor C2 are grounded; the other end of the first conversion circuit is connected with the first capacitor filter, and the other end of the first capacitor filter is connected with the main control module MCU;
the temperature sensing circuit comprises a thermistor RT2, a second resistor R2 and a first capacitor C1, one end of the thermistor RT2 is connected with the power module, and the other end of the thermistor RT2, one end of the second resistor R2 and one end of the first capacitor C1 are connected with the first conversion circuit; the other end of the second resistor R2 and the other end of the first capacitor C1 are grounded. The other end of the second conversion circuit is connected with the second capacitive filter, and the other end of the second capacitive filter is connected with the main control module MCU.
In the embodiment of the invention, the humidity sensing circuit and the temperature sensing circuit convert the collected environmental temperature and humidity resistance values into the AD signals which can be read by the main control module MCU through the first conversion circuit and the second conversion circuit respectively, output the AD signals, and output the AD signals to the main control module MCU after the AD signals pass through the first capacitor filter and the second capacitor filter respectively. The main control module MCU compares the read AD signal with a numerical value table corresponding to the temperature and humidity detection module to obtain a temperature and humidity value of the current environment, and then judges whether to adjust the working power of the atomization module and the rotating speed of the fan module according to the temperature and humidity value of the current temperature, so as to adjust the fog output of the humidifier.
Preferably, the first capacitor filter comprises an electrolytic capacitor EC1, a third capacitor C3 and a power module which are connected in parallel, the positive electrode of the electrolytic capacitor EC1 and one end of the third capacitor C3 are both connected to a regulated power supply, and the negative electrode of the electrolytic capacitor EC1 and the other end of the third capacitor C3 are grounded; the second capacitive filter has the same structure as the first capacitive filter.
In the embodiment of the invention, the first capacitor filter and the second capacitor filter have the function of realizing filtering, so that the accuracy of reading data is improved.
Preferably, the atomization module comprises an atomization power regulating circuit, an ultrasonic atomization circuit and a main control module MCU;
the atomization power regulating circuit comprises a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first diode D2 and an optical coupler U2; one end of the sixth resistor R6 is connected with the MCU, the other end of the sixth resistor R6 is connected with the anode of the LED in the optocoupler U2, and the cathode of the LED in the optocoupler U2 is connected; the power module, the fifth resistor R5, the fourth resistor R4, the first diode D2 and the collector of the optocoupler U2 are sequentially connected, one end of the third resistor R3 is grounded, and the other end is connected between the fourth resistor R4 and the first diode D2;
the ultrasonic atomization circuit is provided with a first terminal, a second terminal and a third terminal, the first terminal is connected with the power supply module, the second terminal is connected with an emitting electrode of the optical coupler U2, and the third terminal is grounded.
In the embodiment of the invention, the optical coupler U2 is added, so that the interference between the ultrasonic atomization circuit and the MCU can be effectively filtered. The atomization amount of 3 gears is set in the program of the main control module MCU. The atomization amount of the 3 gears is respectively high, medium and low, the main control module MCU can automatically select one of the gears according to data collected by the temperature and humidity detection module, or terminal equipment can be adopted to communicate with the main control module MCU through the wireless communication module, and the gears of the atomization amount are remotely set.
Preferably, the FAN module comprises a FAN and a FAN regulating circuit; the fan regulating circuit comprises a second diode D3, a triode Q2, a seventh resistor R7 and an eighth resistor R8; the cathode of the second diode D3 and the power supply module are connected with one end of the fan; the anode of the second diode D3 and the other end of the fan are connected with the collector of the triode Q2; a base electrode of the triode Q2 and one end of the seventh resistor R7 are connected with one end of the eighth resistor R8, and the other end of the eighth resistor R8 is connected with the main control module MCU; the emitter of the transistor Q2 and one end of the seventh resistor R7 are grounded.
In the embodiment of the invention, the rotating speed of the fan with 3 gears is set in the program of the MCU. The rotating speeds of the fans with the 3 gears are respectively high, medium and low, and the rotating speed of the fan and the atomization amount are increased or reduced together.
Preferably, the wireless communication module comprises a WiFi wireless communication chip, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a fourth capacitor C4 and a fifth capacitor C5; the WiFi wireless communication chip is provided with a first interface, a second interface, a third interface and a fourth interface, and the main control module MCU is provided with a TXD pin and an RXD pin; one end of the ninth resistor R9 is connected to the TXD pin, and the other end is connected to one end of the fourth capacitor C4, one end of the eleventh resistor R11, and the second interface; one end of the tenth resistor R10 is connected with the RXD pin, and the other end of the tenth resistor R10 is connected with one end of the twelfth resistor R12, one end of the fifth capacitor C5 and the third interface; the other end of the eleventh resistor R11, the other end of the twelfth resistor R12 and the first interface are connected with the power supply module; the other end of the fourth capacitor C4, the other end of the fifth capacitor C5 and the fourth interface are grounded.
In the above description, the operation method of the intelligent control system for a humidifier according to the present invention is described below, referring to fig. 7, and the operation method includes:
s1: starting a humidifier; the wireless communication module and the display module are powered on and in a working state;
in the step, after the humidifier is powered on and started, the display module can display the current working state of the humidifier, and the wireless communication module keeps network communication, so that the humidifier can be communicated with terminal equipment on hands of a user.
S2: collecting temperature and humidity data of the environment where the humidifier is located; the temperature and humidity detection module detects the temperature and humidity of the surrounding environment in real time, converts the acquired environment temperature and humidity resistance value into an AD signal through a conversion circuit and a capacitor filter and outputs the AD signal to the MCU;
in this step, the humiture signal that the humiture detection module will gather is exported host system MCU, and conversion circuit is responsible for changing the humiture signal that gathers into the AD signal that host system can discern, and capacitive filter is responsible for filtering the signal to improve the accuracy of reading data.
S3: determining the temperature and humidity value of the environment where the humidifier is located; the main control module MCU compares the read AD signal with a preset numerical table to obtain an actually measured temperature and humidity value of the current environment;
in this step, the main control module MCU compares the read AD signal with the numerical table corresponding to the temperature and humidity detection module to obtain an actual measurement temperature and humidity value of the current environment, and adjusts the operating states of the other modules according to the actual measurement value.
S4: atomizing; the main control module MCU adjusts the working power of the atomization module and the working voltage of the fan module according to the temperature and humidity value of the current temperature;
in this step, the temperature and humidity value of the current environment of the main control module MCU judges whether to adjust the working power of the atomization module and the rotation speed of the fan module, so as to adjust the amount of mist output from the humidifier.
The atomization procedure comprises steps a1 to A3:
a1: the actual temperature and humidity value is smaller than a first set value, the duty ratio of a PWM1 driving port of the atomization module and a FAN-PWM2 rotating speed control port of the FAN module is increased by the main control module MCU, so that the output power of the atomization module and the working voltage of the FAN module are reduced, the output of the atomization amount is increased, and the humidifier is in a high-grade working state;
a2: the actual temperature and humidity value is greater than or equal to the first set value and less than or equal to the second set value, and the main control module MCU controls the atomization module and the fan module to operate in a normal working state, so that the humidifier is in a middle working state;
a3: the actual temperature and humidity value is greater than the second set value, the main control module MCU reduces the duty ratio of the PWM1 driving port of the atomization module and the FAN-PWM2 rotating speed control port of the FAN module so as to reduce the output power of the atomization module and the working voltage of the FAN module, and further reduce the output of the atomization amount, so that the humidifier is in a low-gear working state.
In the embodiment of the invention, the atomization amount of 3 gears and the rotating speed of the fan are set in the program of the main control module MCU. The atomization amount of the 3 gears and the rotating speed of the fan are respectively high gear, medium gear and low gear, and the rotating speed of the fan and the atomization amount are increased or decreased together.
Preferably, the first set value is 40% and the second set value is 60%.
In the present embodiment, the humidity in the first set value is 40%, and the humidity in the second set value is 60%. After the parameters are set, if the actually measured temperature and humidity value is greater than 60% of a second set value, and the current environment is in a humid state, the atomization amount needs to be adjusted to reduce the humidity in the air, and the main control module MCU reduces the duty ratio of FAN-PWM2 of a PWM1 driving port and a FAN module rotating speed control port so as to reduce the output power of the atomization module and the working voltage of the FAN module and further reduce the output of the atomization amount, so that the humidifier is in a low-gear working state; if the temperature and humidity value of the fruit is less than 40% of the first set value, the current environment temperature is dry, the atomizing amount needs to be adjusted to increase the humidity in the air, the main control module MCU increases the duty ratio of the PWM1 driving port of the atomizing module and the PWM2 of the fan module rotating speed control port to increase the output power of the atomizing module and the working voltage of the fan module, and further increase the output of the atomizing amount, so that the humidifier is in a high-grade working state; if the first set value is more than or equal to 40% and the measured temperature humidity value is less than or equal to 60% and the current environment temperature is proper, the main control module MCU controls the atomization module and the fan module to keep the current middle working state.
Preferably, a weather detection program is further provided between the step S1 and the step S2; the weather detection program acquires weather data through the wireless communication module and turns on or off the humidifying module and the fan module according to the weather data.
In the embodiment of the invention, the current weather data is acquired through the wireless communication module, and the atomization amount and the wind speed of the humidifier in the working mode at the current moment are automatically adjusted according to the weather data, so that the humidifier can better adapt to local weather conditions and the use experience of a user is improved.
Preferably, the weather detection program comprises steps B1 to B3:
b1: the main control module MCU establishes connection with the terminal equipment through the wireless communication module;
in this step, the wireless communication module is communicated with the terminal device, and can receive information and instructions on the terminal device at any time.
B2: the terminal equipment acquires a current weather information numerical value through a weather forecast APP and converts the weather information numerical value into a weather instruction code through a software algorithm;
in the step, after the user installs APP software matched with the humidifier on a network terminal device such as a mobile phone, a tablet personal computer or other intelligent devices, the APP is connected with the Internet to obtain a weather information value, and the weather information value is calculated and converted into a specific weather instruction code through a built-in algorithm of the software.
B3: the terminal device communicates the weather instruction code to the wireless communication module;
in this step, the terminal device of the user can be communicated with the humidifier in a WAN mode to realize more stable connection, after the APP obtains the latest weather information value, the converted weather instruction code can be transmitted through the WAN network in time, and the wireless communication module receives the weather instruction code through the WAN network.
B4: the wireless communication module analyzes the weather instruction codes into program instruction codes which can be read by the MCU;
in this step, after the wireless communication module receives the weather instruction code, the instruction code is analyzed into a program instruction code which can be identified by the main control module MCU, and this step completes the whole process of converting the weather information value into the program instruction code, so that the main control module MCU can identify and execute corresponding operations.
B5: the main control module MCU compares the received program instruction code with a preset value;
in this step, a preset value for starting atomization and humidification is set in a program of the main control module MCU, the main control module MCU receives the converted program instruction code, compares the value of the program instruction code with the preset value, and selects to control the atomization module and the blower module according to the comparison result.
B6: when the value of the program instruction code is larger than a preset value, the main control module MCU generates a low level signal and sends the low level signal to the atomization module and the fan module for closing atomization and humidification work; when the value of the program instruction code is smaller than or equal to a preset value, the main control module MCU generates a low level signal and sends the low level signal to the atomization module and the fan module for starting atomization and humidification.
In this step, if the weather information value is greater than the preset value for starting atomization and humidification, it indicates that the humidity in the current ambient air is relatively high and the current ambient air is not used for humidifying the environment, then the main control module MCU supplies a low level to the enable EN for controlling the electronic switch of the atomization circuit, so as to turn off the atomization and humidification. If the weather information value is less than or equal to the preset value for starting atomization and humidification, the humidity in the current ambient air is low, and the environment needs to be humidified, the main control module MCU provides a high level for enabling EN of an electronic switch for controlling an atomization circuit, and the high level is used for starting atomization and humidification work.
According to the technical scheme, the embodiment of the invention has the following advantages: according to the invention, the intelligent control system is arranged on the humidifier, the main control module in the intelligent control system controls each functional module, and the wireless communication module is adopted to communicate with the terminal equipment, so that the remote control of the humidifier by the terminal equipment is realized, the control method coexists with a control method of physical contact on the humidifier, so that a user can remotely control the humidifier without manual operation, and the humidifier is more convenient to use. In addition, the user can also receive the humidifier working state information sent by the control system and the related data of the environment where the humidifier is located in real time through the terminal equipment, and the use experience of the user on the humidifier is improved. The invention has the characteristics of convenient and novel control, sensitive control, safety, reliability and simple operation, and has good popularization prospect.
While the above description has described in detail the intelligent control system for a humidifier and the working method thereof, for those skilled in the art, there may be variations in the specific implementation and application scope according to the concepts of the embodiments of the present invention, and in summary, the content of the present description should not be construed as limiting the present invention.

Claims (10)

1. An intelligent control system for a humidifier is characterized by comprising a power supply module, and a wireless communication module, a display module, a main control module, an atomization module, a fan module, a temperature and humidity detection module and a water level detection module which are respectively connected with the power supply module;
the wireless communication module is electrically connected with the main control Module (MCU);
the display module comprises a display screen and a control switch, the display screen and the control switch are both electrically connected with the main control Module (MCU), the main control Module (MCU) displays information of different working states through the display screen, and the control switch is used for switching different working states;
the atomization module and the fan module are both electrically connected with the Main Control Unit (MCU), the atomization module is used for atomizing water, and the fan module is used for discharging water mist outwards;
the temperature and humidity detection module is electrically connected with the main control Module (MCU) and is used for acquiring temperature and humidity data of the surrounding environment in real time and outputting the environment data to the main control Module (MCU);
the water level detection module is electrically connected with the main control Module (MCU) and is used for acquiring a liquid level signal in the water tank in real time and outputting the liquid level signal to the main control Module (MCU).
2. The intelligent control system for the humidifier according to claim 1, wherein the temperature and humidity detection module comprises a temperature sensing circuit, a humidity sensing circuit, a first conversion circuit, a second conversion circuit, a first capacitive filter and a second capacitive filter;
the humidity sensing circuit comprises a humidity-sensitive resistor (RT1), a first resistor (R1) and a second capacitor (C2), one end of the humidity-sensitive resistor (RT1) is connected with the power module, and the other end of the humidity-sensitive resistor (RT1), one end of the first resistor (R1) and one end of the second capacitor (C2) are connected with the first conversion circuit; the other end of the first resistor (R1) and the other end of the second capacitor (C2) are grounded; the other end of the first conversion circuit is connected with the first capacitor filter, and the other end of the first capacitor filter is connected with the main control Module (MCU);
the temperature sensing circuit comprises a thermistor (RT2), a second resistor (R2) and a first capacitor (C1), one end of the thermistor (RT2) is connected with the power supply module, and the other end of the thermistor (RT2), one end of the second resistor (R2) and one end of the first capacitor (C1) are connected with the first conversion circuit; the other end of the second resistor (R2) and the other end of the first capacitor (C1) are grounded. The other end of the second conversion circuit is connected with the second capacitive filter, and the other end of the second capacitive filter is connected with the main control Module (MCU).
3. The intelligent control system for the humidifier according to claim 1, wherein the first capacitor filter comprises an electrolytic capacitor (EC1), a third capacitor (C3) and a power supply module which are connected in parallel, the positive electrode of the electrolytic capacitor (EC1) and one end of the third capacitor (C3) are both connected to a regulated power supply, and the negative electrode of the electrolytic capacitor (EC1) and the other end of the third capacitor (C3) are grounded; the second capacitive filter has the same structure as the first capacitive filter.
4. The intelligent control system for the humidifier according to claim 1, wherein the nebulizing module comprises a nebulizing power adjusting circuit, an ultrasonic nebulizing circuit, and a master control Module (MCU);
the atomization power regulating circuit comprises a third resistor (R3), a fourth resistor (R4), a fifth resistor (R5), a sixth resistor (R6), a first diode (D2) and an optical coupler (U2); one end of the sixth resistor (R6) is connected with the main control Module (MCU), the other end of the sixth resistor is connected with the anode of the light-emitting diode in the optical coupler (U2), and the cathode of the light-emitting diode in the optical coupler (U2) is connected; the power module, the fifth resistor (R5), the fourth resistor (R4), the first diode (D2) and the collector of the optical coupler (U2) are sequentially connected, one end of the third resistor (R3) is grounded, and the other end of the third resistor (R3) is connected between the fourth resistor (R4) and the first diode (D2);
the ultrasonic atomization circuit is provided with a first terminal, a second terminal and a third terminal, the first terminal is connected with the power supply module, the second terminal is connected with an emitting electrode of the optical coupler (U2), and the third terminal is grounded.
5. The intelligent control system for the humidifier according to claim 1, wherein the blower module comprises a blower (FAN) and a blower adjustment circuit; the fan regulating circuit comprises a second diode (D3), a triode (Q2), a seventh resistor (R7) and an eighth resistor (R8); the cathode of the second diode (D3) and the power supply module are connected with one end of the fan; the anode of the second diode (D3) and the other end of the fan are connected with the collector of the triode (Q2); the base electrode of the triode (Q2) and one end of the seventh resistor (R7) are connected with one end of the eighth resistor (R8), and the other end of the eighth resistor (R8) is connected with the main control Module (MCU); the emitter of the triode (Q2) and one end of the seventh resistor (R7) are grounded.
6. The intelligent control system for the humidifier according to claim 1, wherein the wireless communication module comprises a WiFi wireless communication chip, a ninth resistor (R9), a tenth resistor (R10), an eleventh resistor (R11), a twelfth resistor (R12), a fourth capacitor (C4) and a fifth capacitor (C5); the WiFi wireless communication chip is provided with a first interface, a second interface, a third interface and a fourth interface, and the main control Module (MCU) is provided with a TXD pin and an RXD pin; one end of the ninth resistor (R9) is connected with the TXD pin, and the other end of the ninth resistor (R9) is connected with one end of the fourth capacitor (C4), one end of the eleventh resistor (R11) and the second interface; one end of the tenth resistor (R10) is connected with the RXD pin, and the other end is connected with one end of the twelfth resistor (R12), one end of the fifth capacitor (C5) and the third interface; the other end of the eleventh resistor (R11), the other end of the twelfth resistor (R12) and the first interface are connected with the power supply module; the other end of the fourth capacitor (C4), the other end of the fifth capacitor (C5) and the fourth interface are grounded.
7. A method of operating an intelligent control system for a humidifier, as claimed in any one of claims 1 to 6, comprising:
s1: starting a humidifier; the wireless communication module and the display module are powered on and in a working state;
s2: collecting temperature and humidity data of the environment where the humidifier is located; the temperature and humidity detection module detects the temperature and humidity of the surrounding environment in real time, converts collected environment temperature and humidity resistance values into AD signals through a conversion circuit and a capacitance filter and outputs the AD signals to the main control Module (MCU);
s3: determining the temperature and humidity value of the environment where the humidifier is located; the main control Module (MCU) compares the read AD signal with a preset numerical table so as to obtain an actually measured temperature and humidity value of the current environment;
s4: atomizing; the main control Module (MCU) adjusts the working power of the atomization module and the working voltage of the fan module according to the temperature and humidity value of the current temperature;
the atomization procedure comprises steps a1 to A3:
a1: the actual temperature and humidity value is smaller than a first set value, the duty ratio of a PWM1 driving port of the atomization module and a FAN-PWM2 rotating speed control port of the FAN module is increased by the main control Module (MCU), so that the output power of the atomization module and the working voltage of the FAN module are reduced, the output of the atomization amount is increased, and the humidifier is in a high-grade working state;
a2: the actual temperature and humidity value is greater than or equal to the first set value and less than or equal to the second set value, and the main control Module (MCU) controls the atomization module and the fan module to operate in a normal working state, so that the humidifier is in a middle working state;
a3: the actual temperature and humidity value is greater than the second set value, the main control Module (MCU) reduces the duty ratio of the PWM1 driving port of the atomization module and the FAN-PWM2 rotating speed control port of the FAN module so as to reduce the output power of the atomization module and the working voltage of the FAN module, and further reduce the output of the atomization amount, so that the humidifier is in a low-gear working state.
8. The method of claim 7, wherein the first set point is 40% and the second set point is 60%.
9. The operating method of the intelligent control system for the humidifier according to claim 7, wherein a weather detection program is further provided between the step S1 and the step S2; the weather detection program acquires weather data through the wireless communication module and turns on or off the humidifying module and the fan module according to the weather data.
10. The operating method of an intelligent control system for a humidifier according to claim 9, wherein the weather detection program includes steps B1 through B3:
b1: the main control Module (MCU) is connected with the terminal equipment through the wireless communication module;
b2: the terminal equipment acquires a current weather information numerical value through a weather forecast APP and converts the weather information numerical value into a weather instruction code through a software algorithm;
b3: the terminal device communicates the weather instruction code to the wireless communication module;
b4: the wireless communication module analyzes the weather instruction codes into program instruction codes which can be read by a Main Control Unit (MCU);
b5: the main control Module (MCU) compares the received program instruction code with a preset value;
b6: when the value of the program instruction code is larger than a preset value, the main control Module (MCU) generates a low level signal and sends the low level signal to the atomization module and the fan module for closing atomization and humidification work; and when the value of the program instruction code is smaller than or equal to a preset value, the main control Module (MCU) generates a low level signal and sends the low level signal to the atomization module and the fan module for starting atomization and humidification.
CN202110413043.2A 2021-04-16 2021-04-16 Intelligent control system for humidifier and working method Pending CN113007856A (en)

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Application publication date: 20210622