CN112178877A - Air conditioner system based on Internet of things and control method - Google Patents
Air conditioner system based on Internet of things and control method Download PDFInfo
- Publication number
- CN112178877A CN112178877A CN201910586221.4A CN201910586221A CN112178877A CN 112178877 A CN112178877 A CN 112178877A CN 201910586221 A CN201910586221 A CN 201910586221A CN 112178877 A CN112178877 A CN 112178877A
- Authority
- CN
- China
- Prior art keywords
- module
- air conditioner
- mobile terminal
- circuit
- signal
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- F24F11/58—Remote control using Internet communication
-
- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner system based on the Internet of things, and relates to the field of air conditioners and control methods thereof, wherein the system comprises an air conditioner and a controller, wherein the air conditioner is used for adjusting the indoor temperature; the mobile terminal is used for remotely regulating and controlling the air conditioner; the air conditioner comprises a communication module, a control module and a detection module; the communication module is in communication connection with the mobile terminal through the Internet of things and is electrically connected with the control module and the detection module; the control module is used for receiving signals of the mobile terminal to regulate and control the air conditioner in real time, and the detection module is used for detecting fault information of the air conditioner. The remote control system is used for solving the technical problem that the remote control of the air conditioner in the prior art is not realized, and inconvenience is brought to the use of a user.
Description
Technical Field
The invention relates to the field of air conditioners and control methods thereof, in particular to an air conditioner system based on the Internet of things and a control method thereof.
Background
The air conditioner is an electric appliance for adjusting indoor temperature, and along with the improvement of living standard, the air conditioner is a necessary household appliance for each family, because the air conditioner has two functions of heating and refrigerating, the air conditioner can simultaneously replace an electric fan and an electric oven, and is convenient and practical for one family. However, the air conditioner needs to be regulated and controlled in a short distance, in hot summer or cold winter, when people need to go home, the air conditioner needs to be turned on for refrigeration in advance, and the temperature in the whole room can reach a temperature which is comfortable for people after people go home, a new generation information technology, namely the internet of things, is used for enabling the air conditioner to be connected with sensing equipment such as a computer and a mobile terminal through the internet, so that the remote control of the air conditioner is realized, meanwhile, a user can inquire the working state of the air conditioner in real time, the safe and normal operation of the air conditioner is guaranteed, and more convenience is brought to the user.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide an air conditioner system based on the internet of things, which is used to solve the technical problem that the air conditioner in the prior art does not realize remote control and is inconvenient for users to use.
The invention provides an air conditioner system based on the Internet of things, which comprises
An air conditioner for adjusting the indoor temperature;
the mobile terminal is used for remotely regulating and controlling the air conditioner and comprises a fault state judgment module, a fault state judgment module and a processing module, wherein the fault state judgment module is used for judging the fault state of the circuit of the air conditioner according to a circuit fault judgment rule and sending a processing signal to the air conditioner aiming at the fault;
the air conditioner comprises a communication module, a control module and a detection module;
the communication module is in communication connection with the mobile terminal through the Internet of things and is electrically connected with the control module and the detection module;
the control module is used for receiving a signal of the mobile terminal and regulating and controlling the air conditioner in real time;
the detection module comprises a circuit signal detection unit for sampling the signal output by the detection circuit; and the fault processing unit executes fault processing according to the circuit fault state and a preset processing mode.
In an embodiment of the present invention, the communication module receives a regulation signal sent by the mobile terminal, and transmits the regulation signal to the control module.
In an embodiment of the present invention, the fault state determination module sends the detected signal output by the circuit to the mobile terminal through the communication module, and the fault state determination module analyzes the fault state of the air conditioner circuit and sends a preset processing mode to the fault processing unit to maintain the air conditioner.
In an embodiment of the present invention, the air conditioner further includes a switch module, and the switch module is electrically connected to the control module; the control module receives a switch signal from the communication module and controls the switch module to be turned on or turned off.
In an embodiment of the invention, the air conditioner further includes a refrigeration module, a heating module and a temperature sensor, the refrigeration module and the heating module are electrically connected with the control module, and the temperature sensor is electrically connected with the communication module.
In an embodiment of the present invention, the temperature sensor is configured to detect an indoor temperature value, the mobile terminal sends a temperature regulation signal to the control module according to the temperature value, and the control module regulates and controls the refrigeration module and the heating module.
A control method of an air conditioner system based on the Internet of things comprises the following steps:
s1: sending a switching signal to the communication module through the mobile terminal to turn on the air conditioner;
s2: the temperature sensor transmits the detected indoor temperature value to the mobile terminal through the communication module;
s3: the mobile terminal sends a temperature regulation and control signal to the control module, and the regulation and control module automatically controls the on-off of the refrigeration module and the heating module;
s4: the detection module detects the operation state of the air conditioner, the detected circuit output signal of the air conditioner is transmitted to the mobile terminal, and the terminal analyzes the circuit output signal and then sends the fault processing mode to the detection module to maintain the air conditioner.
In an embodiment of the invention, in the step S3, when the indoor temperature is higher than the target temperature, the mobile terminal sets a target temperature value, and turns on the refrigeration module through the control signal, so that the refrigeration module reduces the indoor temperature to the target temperature value; when the indoor temperature is lower than the target temperature value, the mobile terminal sets the target temperature value, the heating module is started through the regulating signal, and the indoor temperature is reduced to the target temperature value through the refrigerating module.
In an embodiment of the invention, in the step S4, the circuit signal detecting unit in the detecting module outputs a signal to the sampling detecting circuit, obtains a plurality of physical quantities of the circuit, and transmits the signal to the mobile terminal, and the fault state determining module in the mobile terminal analyzes the fault state of the air conditioner circuit, and transmits a preset processing mode to the fault processing unit to maintain the air conditioner.
In an embodiment of the present invention, the physical quantities include: the unit comprises a direct current bus voltage U, an input alternating current voltage peak value U, PFC unit branch current I and a PFC circuit total current I.
As described above, the present invention has the following advantageous effects:
1. according to the invention, the mobile terminal and the air conditioner are in bidirectional communication connection, the air conditioner can send the indoor real-time temperature to the mobile terminal, the mobile terminal can control the air conditioner outdoors, the indoor temperature is adjusted in advance to reach a comfortable environment for a human body, the tradition that the air conditioner can be opened only when people return home is broken, and the air conditioner is more humanized and intelligent.
2. According to the invention, the detection module is added in the air conditioner, once the abnormal condition of the air conditioner is detected, the information is sent to the mobile terminal, the mobile terminal executes corresponding event analysis and provides a preprocessing scheme according to the circuit fault state, the air conditioner operates in a derating mode when the circuit is in fault, and the reliable operation of the air conditioner is ensured.
Drawings
Fig. 1 is a block diagram showing a system configuration disclosed in the embodiment of the present invention.
Fig. 2 is a schematic flow chart of the invention disclosed in the embodiment of the invention.
Fig. 3 is a diagram of a PFC circuit disclosed in an embodiment of the present invention.
Description of the element reference numerals
01-air conditioner; 02-mobile terminal; 03-fault status determination module; 04-a communication module; 05-a control module; 06-a detection module; 07-a circuit signal detection unit; 08-a fault handling unit; 09-a switch module; 10-a refrigeration module; 11-a heating module; 12-temperature sensor.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides an air conditioner system based on the internet of things, the system includes
An air conditioner 01 for adjusting the indoor temperature;
the mobile terminal 02 is used for remotely regulating and controlling the air conditioner 01, and the mobile terminal 02 comprises a fault state judgment module 03 which judges the circuit fault state of the air conditioner 01 according to a circuit fault judgment rule and sends a processing signal to the air conditioner 01 aiming at the fault;
the air conditioner 01 comprises a communication module 04, a control module 05 and a detection module 06;
the communication module 04 is in communication connection with the mobile terminal 02 through the Internet of things and is electrically connected with the control module 05 and the detection module 06;
the control module 05 is used for receiving a signal of the mobile terminal 02 and regulating and controlling the air conditioner 01 in real time;
the detection module 06 comprises a circuit signal detection unit 07, which is used for sampling the signal output by the detection circuit; and the fault processing unit executes fault processing according to the circuit fault state and a preset processing mode.
Based on the above embodiments, the communication module 04 receives the regulation and control signal sent by the mobile terminal 02, and transmits the regulation and control signal to the control module 05; after receiving the fault information sent by the detection module 06, the communication module 04 sends fault warning information to the mobile terminal 02.
Based on the above embodiments, the communication module 04 receives the regulation and control signal sent by the mobile terminal 02, and transmits the regulation and control signal to the control module 05.
Based on the above embodiment, the fault state determination module 03 sends the detected signal output by the circuit to the mobile terminal 02 through the communication module 04, and the fault state determination module 03 analyzes to obtain the circuit fault state of the air conditioner 01 and sends a preset processing mode to the fault processing unit to maintain the air conditioner 01.
Based on the above embodiment, the air conditioner 01 further includes a switch module 09, and the switch module 09 is electrically connected with the control module 05; the control module 05 receives a switch signal from the communication module 04 and controls the switch module 09 to be turned on or off.
Based on the above embodiment, the air conditioner 01 further includes a refrigeration module 10, a heating module 11 and a temperature sensor 12, the refrigeration module 10 and the heating module 11 are electrically connected to the control module 05, and the temperature sensor 12 is electrically connected to the communication module 04.
Based on the above embodiment, the temperature sensor 12 is used for detecting an indoor temperature value, the mobile terminal 02 sends a temperature regulation signal to the control module 05 according to the temperature value, and the control module 05 regulates and controls the refrigeration module 10 and the heating module 11.
Referring to fig. 2, a method for controlling an air conditioner system based on the internet of things includes the following steps:
s1: sending a switching signal to the communication module 04 through the mobile terminal 02, and turning on the air conditioner 01;
s2: the temperature sensor 12 transmits the detected indoor temperature value to the mobile terminal 02 through the communication module 04;
s3: the mobile terminal 02 sends a temperature regulation and control signal to the control module 05, and the regulation and control module automatically controls the on and off of the refrigeration module 10 and the heating module 11;
s4: the detection module 06 detects the operation status of the air conditioner 01, transmits the detected circuit output signal of the air conditioner 01 to the mobile terminal 02, and the terminal analyzes the signal and sends the fault processing mode to the detection module 06 to maintain the air conditioner.
Based on the above embodiment, in step S3, when the indoor temperature is higher than the target temperature, the mobile terminal 02 sets a target temperature value, turns on the refrigeration module 10 through the control signal, and the refrigeration module 10 reduces the indoor temperature to the target temperature value; when the indoor temperature is lower than the target temperature value, the mobile terminal 02 sets the target temperature value, the heating module 11 is turned on through the regulation signal, and the cooling module 10 reduces the indoor temperature to the target temperature value.
In this embodiment, the mobile terminal 02 may be a mobile phone or a tablet, and may send a regulation and control signal after establishing a communication connection with the air conditioner 01, the temperature sensor 12 in the opened air conditioner 01 may collect an indoor temperature and send the indoor temperature to the mobile terminal 02 through the communication module 04, if the temperature is high or low, a user may set a target temperature value to the air conditioner 01, and the control module 05 automatically opens the cooling module 10 or the heating module 11, including adjusting an air volume and an air direction, to adjust the indoor temperature to the target temperature value.
Based on the above embodiment, in step S4, the circuit signal detection unit 07 in the detection module 06 outputs a signal to the sampling detection circuit, obtains a plurality of physical quantities of the circuit, and transmits the signal to the mobile terminal 02, and the fault state determination module 03 in the mobile terminal 02 analyzes the circuit fault state of the air conditioner 01, and transmits a preset processing mode to the fault processing unit to maintain the air conditioner 01.
Referring to fig. 3, in the embodiment, the detection module 06 is used to sample the following four physical quantities, i.e. the dc bus voltage U in real timedcInput AC voltage peak value UacpeakPFC unit branch A current IAAnd total current I of PFC circuitGeneral assemblyAnd transmits the signal to the mobile terminal 02.
The determination rule in the failure state determination module 03 is as follows:
if U is detected for 5sdc＜(Uacpeak+ΔUPFC failure determination voltage value) If the PFC circuit is determined to have no boosting effect (boosting abnormity), judging that the two PFC unit branches have faults;
if I is detected for 5sGeneral assembly＞(2*IA+ΔUPFC failure determination current value) If the current of the parallel branch is determined to be abnormal, the fault of the branch A of the PFC unit is determined;
if I is detected for 5sGeneral assembly＜(2*IA-ΔUPFC failure determination current value) If the current of the parallel branch is determined to be abnormal, the fault of the branch B of the PFC unit is determined;
if the two branches are not satisfied, the two PFC unit branches are judged to be normal.
In the above decision rule,. DELTA.UPFCThe failure determination voltage value represents a determination threshold value for determining whether or not the PFC circuit has a boosting action, and is normally set to 20V or more, Δ U, depending on the minimum boost of the PFC circuitPFCThe failure determination voltage value may typically take 10V. Delta IPFCThe fault determination current value represents a determination threshold value of abnormal current of a PFC circuit branch, and the current sharing error generally designed according to the current of the PFC branch is within 0.5A and delta IPFCThe failure determination current value may be 2A in general.
According to the fault state of the PFC circuit, executing corresponding fault processing according to a preset processing mode, wherein the preset processing mode specifically comprises the following steps:
if the two PFC unit branches are judged to be normal, the maximum power P allowed to operatemax＝PRated value；
If at least one of the two PFC unit branches is judged to be in fault, the maximum power P allowed to operate is determinedmax＜PRated value。
Specifically, if it is determined that both branches of the PFC unit fail, the maximum power P allowed to operate is determinedmax＝1/4*PRated value；
If the PFC unit branch A is judged to be in fault and the PFC unit branch B is normal, the maximum power allowed to operate is obtained;
if the branch B of the PFC unit fails, the branch A of the PFC unit is positiveAt normal, the maximum power P allowed to operatemax＝1/2*PRated value。
The fault state judgment module 03 displays the fault information and the processing mode on the mobile terminal 02 to remind a user that the air conditioner has a fault; and the fault processing mode is sent to the fault processing unit in a signal mode, and the fault processing unit regulates and controls the air conditioner 01 according to the signal.
According to the invention, the fault state judgment module 03 is arranged in the mobile terminal 02, so that the function is easily realized for the mobile terminal 02, errors are not easy to occur, and hidden faults can be informed to a user.
In conclusion, the bidirectional communication connection between the mobile terminal 02 and the air conditioner 01 is realized, the air conditioner 01 can send the indoor real-time temperature to the mobile terminal 02, the mobile terminal 02 can control the air conditioner 01 outdoors, the indoor temperature is adjusted in advance to achieve a comfortable environment for a human body, the tradition that the air conditioner 01 can be opened only when people return home is broken, and the air conditioner 01 is more humanized and intelligent; meanwhile, the invention also adds a detection module 06 and a fault state judgment module 03, and once the abnormal condition of the air conditioner 01 is detected, the information is sent to the mobile terminal 02, so that the remote operation is safer and more relieved.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An air conditioner system based on the Internet of things is characterized in that the system comprises
An air conditioner for adjusting the indoor temperature;
the mobile terminal is used for remotely regulating and controlling the air conditioner and comprises a fault state judgment module, a fault state judgment module and a processing module, wherein the fault state judgment module is used for judging the fault state of the circuit of the air conditioner according to a circuit fault judgment rule and sending a processing signal to the air conditioner aiming at the fault;
the air conditioner comprises a communication module, a control module and a detection module;
the communication module is in communication connection with the mobile terminal through the Internet of things and is electrically connected with the control module and the detection module;
the control module is used for receiving a signal of the mobile terminal and regulating and controlling the air conditioner in real time;
the detection module comprises a circuit signal detection unit for sampling the signal output by the detection circuit; and the fault processing unit executes fault processing according to the circuit fault state and a preset processing mode.
2. The system of claim 1, wherein: the communication module receives a regulation and control signal sent by the mobile terminal and transmits the regulation and control signal to the control module.
3. The system of claim 1, wherein: the fault state judging module sends the detected signal output by the circuit to the mobile terminal through the communication module, analyzes the fault state of the air conditioner circuit to obtain the fault state of the air conditioner circuit, and sends the preset processing mode to the fault processing unit to maintain the air conditioner.
4. The system of claim 1, wherein: the air conditioner also comprises a switch module which is electrically connected with the control module; the control module receives a switch signal from the communication module and controls the switch module to be turned on or turned off.
5. The system of claim 1, wherein: the air conditioner also comprises a refrigeration module, a heating module and a temperature sensor, wherein the refrigeration module and the heating module are electrically connected with the control module, and the temperature sensor is electrically connected with the communication module.
6. The system of claim 5, wherein: the temperature sensor is used for detecting an indoor temperature value, the mobile terminal sends a temperature regulation and control signal to the control module according to the temperature value, and the control module regulates and controls the refrigeration module and the heating module.
7. A control method of an air conditioner system based on the Internet of things is characterized by comprising the following steps:
s1: sending a switching signal to the communication module through the mobile terminal to turn on the air conditioner;
s2: the temperature sensor transmits the detected indoor temperature value to the mobile terminal through the communication module;
s3: the mobile terminal sends a temperature regulation and control signal to the control module, and the regulation and control module automatically controls the on-off of the refrigeration module and the heating module;
s4: the detection module detects the operation state of the air conditioner, the detected circuit output signal of the air conditioner is transmitted to the mobile terminal, and the terminal analyzes the circuit output signal and then sends the fault processing mode to the detection module to maintain the air conditioner.
8. The control method according to claim 7, wherein in step S3, when the indoor temperature is higher than the target temperature, the mobile terminal sets a target temperature value, and turns on the refrigeration module through the control signal, so that the refrigeration module lowers the indoor temperature to the target temperature value; when the indoor temperature is lower than the target temperature value, the mobile terminal sets the target temperature value, the heating module is started through the regulating signal, and the indoor temperature is reduced to the target temperature value through the refrigerating module.
9. The control method according to claim 7, wherein in step S4, the circuit signal detection unit in the detection module samples the output signal of the detection circuit to obtain a plurality of physical quantities of the circuit and transmits the signal to the mobile terminal, and the fault status determination module in the mobile terminal analyzes the fault status of the air conditioner circuit and transmits a preset processing mode to the fault processing unit for repairing the air conditioner.
10. The control method according to claim 9, characterized in that the plurality of physical quantities include: the unit comprises a direct current bus voltage U, an input alternating current voltage peak value U, PFC unit branch current I and a PFC circuit total current I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910586221.4A CN112178877A (en) | 2019-07-01 | 2019-07-01 | Air conditioner system based on Internet of things and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910586221.4A CN112178877A (en) | 2019-07-01 | 2019-07-01 | Air conditioner system based on Internet of things and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112178877A true CN112178877A (en) | 2021-01-05 |
Family
ID=73915658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910586221.4A Pending CN112178877A (en) | 2019-07-01 | 2019-07-01 | Air conditioner system based on Internet of things and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112178877A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949289A (en) * | 2015-07-14 | 2015-09-30 | 熊益冲 | Wireless IoT (Internet of things) monitoring method and system for air conditioners |
| CN108019887A (en) * | 2017-11-28 | 2018-05-11 | 奕铭（大连）科技发展有限公司 | A kind of Internet of Things air-conditioning system |
| CN108507119A (en) * | 2018-03-28 | 2018-09-07 | 珠海格力电器股份有限公司 | A kind of equipment fault restorative procedure, device, storage medium and equipment |
| US20180283722A1 (en) * | 2017-04-04 | 2018-10-04 | Lg Electronics Inc. | Air conditioning system and control method thereof |
| JP2018194207A (en) * | 2017-05-15 | 2018-12-06 | シャープ株式会社 | Notification system, terminal device, and server |
-
2019
- 2019-07-01 CN CN201910586221.4A patent/CN112178877A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949289A (en) * | 2015-07-14 | 2015-09-30 | 熊益冲 | Wireless IoT (Internet of things) monitoring method and system for air conditioners |
| US20180283722A1 (en) * | 2017-04-04 | 2018-10-04 | Lg Electronics Inc. | Air conditioning system and control method thereof |
| JP2018194207A (en) * | 2017-05-15 | 2018-12-06 | シャープ株式会社 | Notification system, terminal device, and server |
| CN108019887A (en) * | 2017-11-28 | 2018-05-11 | 奕铭（大连）科技发展有限公司 | A kind of Internet of Things air-conditioning system |
| CN108507119A (en) * | 2018-03-28 | 2018-09-07 | 珠海格力电器股份有限公司 | A kind of equipment fault restorative procedure, device, storage medium and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9366702B2 (en) | Devices and methods for determining whether an electrical device or component can sustain variations in voltage | |
| US9696734B2 (en) | Active power stealing | |
| US20140180486A1 (en) | Multi-Zone Plug-In Load Control Device | |
| US11909204B2 (en) | Direct-current power distribution in a control system | |
| CN106959614B (en) | Method and system for controlling power supply of household electrical appliance | |
| US11079132B2 (en) | System and method for managing power consumption of an HVAC system | |
| US9989272B2 (en) | Air conditioner | |
| CN113007776B (en) | Plug-and-play capacity-increasing-free power carrier electric heater and working method thereof | |
| WO2009027963A2 (en) | Remote controlled electrical switch retrofit system | |
| KR102024091B1 (en) | Air conditioner | |
| US20220085610A1 (en) | Direct-current power distribution in a control system | |
| CN110736030A (en) | household gas intelligent monitoring system | |
| CN107490124B (en) | Heating equipment and indoor ventilation detection method and detection device | |
| US10267532B2 (en) | Thermostat with power stealing | |
| CN112178877A (en) | Air conditioner system based on Internet of things and control method | |
| US11650608B2 (en) | Timing for power-stealing circuits in smart-home devices | |
| CN102331799A (en) | Dew condensation prevention protection method for programmable dew point temperature controller | |
| CN205641374U (en) | Energy -conserving air conditioning system based on electrical automation control | |
| CN111288613B (en) | Air conditioner state monitoring method and device | |
| CN110398049B (en) | Air conditioner control method, air conditioner and computer readable storage medium | |
| US11585551B2 (en) | Dynamic input selection for power-stealing smart-home devices | |
| CN110131861B (en) | Wire controller and electric appliance control system | |
| US20240191895A1 (en) | Control device and method, and air conditioning system | |
| CN114576805A (en) | Control method of air conditioner | |
| CN217636094U (en) | Central air conditioning valve energy-saving control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |