CN111637602A - Air conditioner control method and air conditioner - Google Patents
Air conditioner control method and air conditioner Download PDFInfo
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- CN111637602A CN111637602A CN202010431728.5A CN202010431728A CN111637602A CN 111637602 A CN111637602 A CN 111637602A CN 202010431728 A CN202010431728 A CN 202010431728A CN 111637602 A CN111637602 A CN 111637602A
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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
- F24F11/62—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
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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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
- F24F11/70—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
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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
- F24F11/70—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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- 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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- Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner control method and an air conditioner, wherein the air conditioner control method comprises the following steps: sampling indoor environment temperature Tai(ii) a Such asFruit TaiIf the deviation between the temperature and the temperature in the comfortable room is less than a first preset temperature threshold value, entering the temperature and humidity comfort control mode; after entering the temperature and humidity comfort control mode, according to TaiAnd indoor ambient humidity RHiSearching T in set comfortable temperature and humidity intervalsetAnd RHsetAnd with TsetAnd RHsetControlling the air conditioner to operate as a set temperature and a set humidity; monitoring TaiAnd RHiWhether the temperature is in the set comfortable temperature and humidity interval or not; if the temperature is in the set comfortable temperature and humidity interval, keeping TsetAnd RHsetThe change is not changed; if the temperature deviates from the set comfortable temperature and humidity interval, controlling the air conditioner to operate by taking the preset target indoor temperature and the preset target indoor humidity as the set temperature and the set humidity; if it is determined that the current seasonal pattern is summer, a predetermined operation is performed. The invention can effectively improve the performance of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air conditioner control method and an air conditioner.
Background
An automatic control system for a room air conditioner for directly treating room air, which should achieve control objectives including: the comfort requirements of people are met, namely the control on the temperature, the humidity and the wind speed of a room is realized; the safe and efficient operation of the refrigeration system is ensured: under any conditions, including different weather states, different operation modes, switching moments among the modes, normal operation, misoperation and the like, the refrigeration system and the automatic control equipment are not physically damaged, and meanwhile, higher operation efficiency is kept to save energy; the method is convenient for user operation and management, and has simple and clear man-machine interaction mode and simple operation.
Various air conditioner control systems are disclosed in the prior art to improve the performance of air conditioners in these three aspects. The chinese patent (publication No. CN206771657U) discloses the following technical solutions: "the control system includes: the system comprises an infrared human sensing device, an air conditioner and a control device, wherein the infrared human sensing device is used for detecting at least one target parameter of a human body in the environment where the air conditioner is located, and the target parameter is used for determining the current PMV value of the human body and/or the current air supply state of the air conditioner; the humidity detection device is used for acquiring the air relative humidity of the current environment of the air conditioner; the controller is respectively connected with the infrared human sensing device and the humidity detection device, determines a temperature compensation value according to the current working environment condition of the air conditioner, and controls the air conditioner to correct the indoor environment temperature based on the temperature compensation value, wherein the environment condition at least comprises at least one of the following conditions: a PMV value, the supply air condition, and the air relative humidity. "
It is easy to see that, in the above technical scheme, the infrared human sensing device is used for detecting the current PMV value of the human body and executing further control. However, the accuracy of detecting the PMV value of the human body by the infrared human sensing equipment is still in an experimental stage, the actual effect is greatly deviated from the user experience, and the actual requirement can not be met far away.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a method for controlling an air conditioner, which can improve the comfort of the air conditioner, simplify the operation, and improve the efficiency of the air conditioner.
Another objective of the present invention is to provide an air conditioner using the above air conditioner control method.
The air conditioner control method according to the embodiment of the first aspect of the present invention includes the steps of:
sampling the indoor environment temperature T according to a set sampling periodaiAccording to the indoor ambient temperature TaiJudging whether to enter a temperature and humidity comfort control mode;
after entering the temperature and humidity comfort control mode, the indoor environment temperature T is obtained by sampling according to the current sampling periodaiAnd indoor ambient humidity RHiSearching target indoor temperature T in set comfort temperature and humidity intervalsetAnd target indoor humidity RHsetAnd with the target indoor temperature TsetAnd target indoor humidity RHsetControlling the air conditioner to operate as a set temperature and a set humidity;
monitoring indoorAmbient temperature TaiAnd indoor ambient humidity RHiWhether the temperature is in the set comfortable temperature and humidity interval or not;
if the indoor ambient temperature TaiAnd indoor ambient humidity RHiIn the set comfortable temperature and humidity interval, the target indoor temperature T is keptsetAnd target indoor humidity RHsetThe change is not changed; if the indoor ambient temperature TaiAnd indoor ambient humidity RHiIf the temperature deviates from the set comfortable temperature and humidity interval, the operation of the air conditioner is controlled by taking the preset target indoor temperature and the preset target indoor humidity as the set temperature and the set humidity;
if the current seasonal mode is judged to be summer, then:
determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a first temperature interval or not; if the temperature of the air conditioner belongs to the first temperature interval, firstly, the operation of the air conditioner is controlled by taking a preset target indoor temperature and preset target indoor humidity as a set temperature and a set humidity; then controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a second temperature interval; if the temperature of the air conditioner belongs to the second temperature interval, controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a third temperature interval; if the temperature of the indoor environment is within the third temperature interval, controlling the fan to work at a set rotating speed and sampling the indoor environment humidity, and if the indoor environment humidity is higher than the humidity intervention upper limit threshold, entering a dehumidification mode; if the indoor environment humidity is lower than the humidity intervention lower limit threshold, entering an air supply mode;
and the temperature value of the first temperature interval, the temperature value of the second temperature interval and the temperature value of the third temperature interval are decreased gradually in sequence.
According to some embodiments of the invention, if the indoor ambient temperature TaiIf the difference value between the target indoor temperature and the preset target indoor temperature is more than 3 ℃, the target operation frequency of the compressor is obtained through incremental PID operationRate;
if the indoor ambient temperature TaiAnd if the difference value between the target indoor temperature and the preset target indoor temperature is less than 3 ℃, obtaining the target running frequency of the compressor through a fuzzy algorithm.
According to some embodiments of the invention, in the summer mode, the target indoor temperature TsetIndoor environment humidity RH sampled corresponding to the current sampling period in the comfort temperature and humidity interval is setiA corresponding maximum temperature value; target indoor humidity RHsetIndoor environment temperature T obtained by sampling in current sampling period in set comfort temperature and humidity intervalaiCorresponding minimum humidity value.
According to some embodiments of the invention, the dehumidification mode comprises:
in a second effective timing period, the air conditioner maintains the refrigeration operation;
after the second effective timing period is finished, the indoor environment temperature T sampled in the current sampling periodaiThe difference value between the set dehumidification temperature and the set dehumidification temperature is used as the set temperature, the air conditioner keeps refrigeration operation, and the fan keeps the air speed unchanged.
According to some embodiments of the invention, after entering the temperature and humidity comfort control mode, if the indoor environment temperature T sampled in the current sampling period is obtainedaiIf the temperature range is within the corresponding temperature range of the set comfortable temperature and humidity interval, the indoor environment humidity RH sampled in the current sampling period is judgediWhether the wind speed is greater than a wind speed intervention threshold value or not, and if the wind speed is greater than the wind speed intervention threshold value, controlling the rotating speed of the fan to rise; and if the wind speed is lower than the wind speed intervention threshold value, controlling the rotating speed of the fan to be reduced.
According to some embodiments of the invention, if the current seasonal pattern is determined to be winter, then:
determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a fourth temperature interval or not; if the temperature of the air conditioner belongs to the fourth temperature interval, firstly, the operation of the air conditioner is controlled by taking a preset target indoor temperature and preset target indoor humidity as a set temperature and a set humidity; then controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a fifth temperature interval or not; if the temperature of the air conditioner belongs to the fifth temperature interval, controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a sixth temperature interval or not;
if the temperature of the air in the sixth temperature interval is within the sixth temperature interval, entering an air supply mode;
and the temperature value of the fourth temperature interval, the temperature value of the fifth temperature interval and the temperature value of the sixth temperature interval are sequentially increased.
According to some embodiments of the invention, in the winter mode, the target indoor temperature TsetIndoor environment humidity RH sampled corresponding to the current sampling period in the comfort temperature and humidity interval is setiA corresponding minimum temperature value; target indoor humidity RHsetIndoor environment temperature T obtained by sampling in current sampling period in set comfort temperature and humidity intervalaiCorresponding highest humidity value.
According to some embodiments of the present invention, before determining whether to enter the temperature and humidity comfort control mode, the outdoor environment temperature T is first determinedodiJudging a current seasonal mode;
determining the current seasonal pattern includes the steps of:
sampling the ambient temperature T outside the chamberodi；
If the outdoor ambient temperature TodiIf the current seasonal mode is not lower than the seasonal mode temperature threshold, judging that the current seasonal mode is summer;
if the outdoor ambient temperature TodiAnd if the current seasonal mode is lower than the seasonal mode temperature threshold, judging that the current seasonal mode is winter.
According to some embodiments of the invention, the outdoor ambient temperature TodiSampling by a temperature sensor arranged in an outdoor unit of the air conditioner; and/or
Outdoor ambient temperature TodiThe current seasonal mode is determined by the geographical location and time of the air conditioner working place.
According to the bookSome embodiments of the invention, after entering winter mode, if outdoor ambient temperature TodiIf the temperature is greater than or equal to the summer mode temperature threshold and the first accumulated timing period is met, the current season mode is converted into summer;
after entering summer season mode, if outdoor ambient temperature TodiAnd if the temperature is less than or equal to the winter mode temperature threshold and the accumulation meets the first accumulation timing period, the current seasonal mode is changed into the winter.
According to the air conditioner of the embodiment of the second aspect of the present invention, the air conditioner control method according to the above-described embodiment of the first aspect of the present invention is employed.
The control method of the air conditioner disclosed by the invention optimizes the control logic of the air conditioner by taking the actual comfort of the user as a starting point according to the indoor environment temperature, so that the control process is more accurate, the user does not need to intervene manually in the whole control process, the operation process is simplified while the control performance is improved, the energy consumption is more reasonable, and the overall performance of the air conditioner is comprehensively improved.
The air conditioner disclosed by the invention has the advantages of excellent performance and high intelligent degree.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart illustrating a first embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 2 is a flowchart illustrating a second embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 3 shows a summer mode comfort temperature and humidity interval;
fig. 4 shows a comfortable temperature and humidity interval in the winter mode.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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, a flow chart of an embodiment of a control method of an air conditioner according to the present invention is shown. The air conditioner control method disclosed by the invention can be used as a subprogram for controlling the whole air conditioner, and is started by a user through operating a specific key on an air conditioner control panel, a remote controller or other remote control terminals. Or writing in a control program of the air conditioner, and automatically starting the air conditioner when the air conditioner is started. After entering the control method, as shown in fig. 1, the method specifically includes the following steps:
step 1, sampling the indoor environment temperature T according to a set sampling periodai. Indoor ambient temperature TaiPreferably detected by a temperature sensor arranged on the air return opening of the indoor unit of the air conditioner. Preferably, a humidity sensor is further arranged on the air return opening of the indoor unit of the air conditioner so as to detect the indoor environment humidity RHi. The air conditioner is based on the indoor ambient temperature TaiIt is determined whether to enter a warm-humid comfort control mode. In the embodiment disclosed by the invention, the temperature and humidity comfort control mode is a control mode with higher precision, so that the air conditioning effect is more in line with the comfort of human bodies. That is to say, when the deviation between indoor ambient temperature and the comfortable indoor temperature is less, the comfortable control mode of humiture can provide a more meticulous control effect, reaches the balance of humiture for air parameter in the room satisfies people's travelling comfort requirement, and the user need not to carry out corresponding operation. On the other hand, if the deviation between the indoor ambient temperature and the comfortable indoor temperature is large, it is preferable to increase the heating or cooling speed by first reducing the deviation in the forced cooling mode or the forced heating mode. The forced cooling mode/heating mode specifically comprises the following steps: compressor based on real-time indoor ambient temperature and set temperatureThe compressor target frequency calculated by the incremental PID control algorithm of the temperature difference is operated, and the powerful cooling mode/heating mode is currently applied to the commercial products, and the control method is not the key point protected by the invention and is not repeated. Indoor ambient temperature TaiAnd indoor ambient humidity RHiThe sampling period of (a) is preferably set to 5 minutes, i.e., sampling every 5 minutes.
Step 2: if the indoor ambient temperature TaiAnd if the deviation between the temperature and the temperature in the comfortable room is relatively small, the system enters a temperature and humidity comfort control mode for accurate control. Specifically, the system stores a set comfort temperature/humidity zone in advance. The comfort temperature setting interval is a two-dimensional data interval with humidity as an abscissa and temperature as an ordinate, and is obtained by a large number of experiments by professional technicians according to a refrigeration principle. As shown in fig. 3 and 4, the region marked with the chinese "comfort" is the temperature and humidity region where the human body feels comfortable, i.e., the set comfort temperature region.
And step 3: after entering the temperature and humidity comfort control mode, the indoor environment temperature T is further obtained by sampling according to the current sampling periodaiAnd indoor ambient humidity RHiSearching target indoor temperature T in set comfort temperature and humidity intervalsetAnd target indoor humidity RHset. The data pointer is addressed in a storage unit for prestoring a comfortable temperature interval until a target indoor temperature T is foundsetAnd target indoor humidity RHset。
And 4, step 4: find the target indoor temperature TsetAnd target indoor humidity RHsetThen, the target indoor temperature T is usedsetAnd target indoor humidity RHsetThe operation of the air conditioner is controlled as a set temperature and a set humidity.
Step 5, monitoring the indoor environment temperature TaiAnd indoor ambient humidity RHiWhether the temperature difference is within the range limited by the set comfortable temperature and humidity interval or not is determined to determine whether the current control mode effectively restrains the deviation between the indoor air parameter and the ideal comfortable air parameter or not.
Step 6, ifIndoor ambient temperature TaiAnd indoor ambient humidity RHiWhen the temperature and humidity of the indoor air is within the set comfortable temperature and humidity interval, the current control mode effectively inhibits the deviation between the indoor air parameter and the ideal comfortable air parameter, the user in the air-conditioned room feels comfortable, and the target indoor temperature T is keptsetAnd target indoor humidity RHsetAnd is not changed. And correspondingly, if the indoor ambient temperature TaiAnd indoor ambient humidity RHiDeviating from the set comfortable temperature and humidity interval, the situation shows that the heat source in the current air-conditioned room changes, the current control mode is not enough to effectively inhibit deviation, and the user experience is poor.
In order to avoid frequent fluctuations of the system, if the indoor ambient temperature T is monitoredaiAnd indoor ambient humidity RHiWhen the temperature does not belong to the set comfortable temperature and humidity interval, starting a timer in the control chip, and further monitoring the environment temperature T in the chamber in a continuous first effective timing periodaiAnd indoor ambient humidity RHiAnd whether the temperature and the humidity do not belong to the set comfortable temperature and humidity interval. If yes, the indoor environment temperature T is judgedaiAnd indoor ambient humidity RHiDeviating from the set comfortable temperature and humidity interval. Preferably, the first active timing period is 15 minutes.
The flow of the cooling mode and the heating mode in the air conditioner control method disclosed by the present invention will be described in detail with reference to fig. 2.
The current seasonal pattern is first determined. Seasonal mode is preferably selected by varying the outdoor ambient temperature TodiComparison with seasonal pattern temperature thresholds yields: if the outdoor ambient temperature TodiIf the current seasonal mode is not lower than the seasonal mode temperature threshold, judging that the current seasonal mode is summer; if the outdoor ambient temperature TodiAnd if the current seasonal mode is lower than the seasonal mode temperature threshold, judging that the current seasonal mode is winter. Among them, the seasonal mode temperature threshold is preferably set to 20 degrees celsius. Outdoor ambient temperature TodiThe temperature sensor may be a temperature sensor disposed in the outdoor unit of the air conditioner, or may be a temperature sensor disposed in the outdoor unit of the air conditioner. Outdoor ambient temperature TodiThe sampling period of (a) is preferably set to 5 minutes, i.e., sampling every 5 minutes.
In order to make the operation of the air conditioner simpler and more convenient and realize full-intelligent automatic control, in the air conditioner control method disclosed by the invention, after the air conditioner enters a summer mode, the outdoor environment temperature T obtained by sampling is continuously obtainedodiComparing with winter mode temperature threshold if outdoor environment temperature TodiIf the temperature is less than or equal to the winter mode temperature threshold and the accumulation meets the first accumulation timing period, the current seasonal mode is changed into winter; similarly, after entering the winter mode, the sampled outdoor environment temperature T is also continuously measuredodiComparing with summer mode temperature threshold if outdoor ambient temperature TodiAnd if the temperature is greater than or equal to the summer mode temperature threshold and the first accumulated timing period is met, the current season mode is converted into summer. The mode switching is automatically executed by a program without manual intervention. Preferably, the winter mode temperature threshold is set to 15 degrees celsius, the summer mode temperature threshold is set to 25 degrees celsius, and the first cumulative time is set to 30 minutes. It should be noted that, in order to reduce the probability of misoperation and avoid frequent changes of the operating condition of the air conditioner, when the first accumulated time is not reached for 30 minutes, if in the summer mode, the outdoor environment temperature T is in the summer modeodiThe fluctuation occurs more than the winter mode temperature threshold, or in winter mode, the outdoor ambient temperature TodiAnd if the fluctuation is smaller than the summer mode temperature threshold, clearing the first accumulated time and restarting timing.
If the air conditioner is not equipped with an outdoor temperature sensor, or the outdoor temperature sensor is out of order. In the invention, the current seasonal mode can also be determined by the geographical position and the time of the working place of the air conditioner. The air conditioner is connected with the server through the WIFI module and obtains the current date, the mode of the northern hemisphere from 10 months and 1 day of the current year to 4 months and 30 days of the next year is a winter mode, and the mode of the northern hemisphere from 5 months and 1 day of the current year to 9 months and 30 days of the current year is summer; the summer mode is from 10 months 1 day of the current year to 4 months 30 days of the next year in the southern hemisphere, and the winter mode is from 5 months 1 day of the current year to 9 months 30 days of the current year in the southern hemisphere.
When the current season mode is determined to be the summer mode:
further determining the indoor ambient temperature T sampled according to the set sampling periodaiWhether it belongs to the first temperature interval. Preferably, when the indoor ambient temperature TaiAbove 28 ℃, it is considered to belong to the first temperature interval. When the indoor ambient temperature TaiWhen the temperature difference belongs to the first temperature interval, the deviation between the indoor environment temperature and the comfortable temperature of the human body is large. Therefore, the air conditioner is controlled to operate with the preset target indoor temperature and the preset target indoor humidity as the set temperature and the set humidity. Preferably, if the indoor ambient temperature TaiIf the difference value between the target indoor temperature and the preset target indoor temperature is more than 3 ℃, the target running frequency of the compressor is obtained through incremental PID operation, and if the indoor environment temperature T is higher than the preset target indoor temperature TaiAnd if the difference value between the target indoor temperature and the preset target indoor temperature is less than 3 ℃, obtaining the target running frequency of the compressor through a fuzzy algorithm. By adopting two modes, the requirements of system refrigerating capacity and energy consumption can be considered, so that the indoor temperature is reduced at an ideal rate. One set of optional values is that the preset target indoor temperature is 27 ℃ and the preset target indoor humidity is 30%. And then controlling the air conditioner to enter a warm and humid comfort control mode. According to the indoor environment temperature T sampled by the current sampling periodaiAnd indoor ambient humidity RHiSearching target indoor temperature T in set comfort temperature and humidity intervalsetAnd target indoor humidity RHsetMore specifically, the target indoor temperature TsetIndoor environment humidity RH sampled corresponding to the current sampling period in the comfort temperature and humidity interval is setiCorresponding maximum temperature value, target indoor humidity RHsetIndoor environment temperature T obtained by sampling in current sampling period in set comfort temperature and humidity intervalaiCorresponding minimum humidity value. It is easy to understand that when the humidity is relatively high, the temperature sensed by the human body rises obviously. Thus, the target indoor temperature TsetAnd target indoor humidity RHsetFactors influencing the comfort of the human body are fully considered. At a target indoor temperature TsetAnd target indoor humidity RHsetAfter the control parameters are set, the target temperature and the target humidity are obtained, and the indoor environment temperature T is further monitoredaiAnd indoor ambient humidity RHiAnd whether the temperature and the humidity are in the set comfortable temperature and humidity interval. If yes, maintaining the target indoor temperature TsetAnd target indoor humidity RHsetIf the temperature does not change, and the temperature does not belong to the preset target indoor temperature, and the temperature lasts for a certain time, preferably for 15 minutes, the indoor comfort degree is obviously reduced, and the refrigerating operation is carried out again by taking the preset target indoor temperature and the preset target indoor humidity as control targets.
Alternatively, the indoor ambient temperature T sampled at a set sampling period is further determinedaiWhether it belongs to the second temperature interval. In particular, it is preferable when the indoor ambient temperature T isaiWhen the temperature is 28 ℃ or lower and 24 ℃ or higher, it is considered to belong to the second temperature range. When the indoor ambient temperature TaiWhen the temperature control device belongs to the second temperature interval, the deviation between the indoor environment temperature and the comfortable temperature of the human body is small, and the temperature and humidity comfortable control mode is directly entered. The temperature and humidity comfort control mode is consistent with the description in the above paragraphs, and will not be described in detail here. Similarly, after the target temperature and the target humidity are obtained, the indoor environment temperature T is further monitoredaiAnd indoor ambient humidity RHiAnd whether the temperature and the humidity are in the set comfortable temperature and humidity interval. If yes, maintaining the target indoor temperature TsetAnd target indoor humidity RHsetIf the indoor comfort level is not changed, and the indoor comfort level is obviously reduced when the indoor comfort level is not changed and the first effective timing period lasts for a certain time, namely the first effective timing period lasts for 15 minutes, the refrigerating operation is carried out by taking the preset target indoor temperature and the preset target indoor humidity as control targets again.
Alternatively, the indoor ambient temperature T sampled at a set sampling period is further determinedaiWhether it belongs to the third temperature interval. In particular, it is preferable when the indoor ambient temperature T isaiLess than 24 ℃ and for at least 15 minutes, it is considered to belong to the third temperature interval. The third temperature interval is lower than the comfortable environment temperature of the human body, and under the condition, the comfort level of the user, which is caused by high indoor humidity, is reduced with high probability of the refrigeration requirement. Therefore, the fan is first controlledWorking at a set speed, preferably 700rpm, while sampling the ambient humidity RH in the chamberi. And if the indoor environment humidity is higher than the humidity intervention upper limit threshold, entering a dehumidification mode. Specifically, the dehumidification mode includes the air conditioner maintaining the cooling operation for a second active timer period, which is preferably set to 3 minutes. After the second effective timing period is finished, the indoor environment temperature T sampled in the current sampling periodaiThe difference value between the set dehumidification temperature and the set dehumidification temperature is used as the set temperature, and the air conditioner maintains the refrigeration operation. To quickly reduce the indoor environment humidity to the ideal range, preferably, the dehumidification set temperature is 2 ℃, and the fan keeps the wind speed unchanged at 700 rpm. If the indoor environment humidity is lower than the humidity intervention lower limit threshold, the humidity deviation is relatively controllable, an air supply mode is entered, and the air speed of the fan is kept at 700rpm, so that the energy consumption of the air conditioner is reduced.
It should be noted that the numerical ranges of the first temperature interval, the second temperature interval and the third temperature interval disclosed above are only preferred values, and can be adjusted in actual operation, but the temperature value of the first temperature interval, the temperature value of the second temperature interval and the temperature value of the third temperature interval should keep a trend of decreasing in sequence within a proper adjustment range.
In the temperature and humidity comfort control mode, if the indoor environment temperature T sampled in the current sampling periodaiBelongs to a set comfortable temperature and humidity interval, but the indoor environment humidity RHiAbove the wind speed intervention threshold, the fan speed is controlled to increase, preferably 1250 rpm. Humidity RH of indoor environmentiAnd if the wind speed is less than the wind speed intervention threshold value, controlling the rotating speed of the fan to be reduced, preferably 1000rpm, so as to play a role in auxiliary regulation and achieve a role in saving energy consumption.
Correspondingly, when the current season mode is judged to be the winter mode:
further determining the indoor ambient temperature T sampled according to the set sampling periodaiWhether it belongs to the fourth temperature interval. Preferably, when the indoor ambient temperature TaiWhen it is less than 20 ℃, it is considered to belong to the fourth temperature interval. When the indoor ambient temperature TaiWhen the temperature of the room falls within the fourth temperature range, the indoor ringThe deviation between the ambient temperature and the comfortable temperature of the human body is large, and the human body feels cold. Therefore, the air conditioner is controlled to operate with the preset target indoor temperature and the preset target indoor humidity as the set temperature and the set humidity. Preferably, if the indoor ambient temperature TaiIf the difference value between the target indoor temperature and the preset target indoor temperature is more than 3 ℃, the target running frequency of the compressor is obtained through incremental PID operation, and if the indoor environment temperature T is higher than the preset target indoor temperature TaiAnd if the difference value between the target indoor temperature and the preset target indoor temperature is less than 3 ℃, obtaining the target running frequency of the compressor through a fuzzy algorithm. By adopting two modes, the requirements of system heating capacity and energy consumption can be considered, so that the indoor temperature is increased at an ideal rate. In the winter mode, one set of selectable values is a preset target indoor temperature of 22 ℃ and a preset target indoor humidity of 80%. And then controlling the air conditioner to enter a warm and humid comfort control mode. According to the indoor environment temperature T sampled by the current sampling periodaiAnd indoor ambient humidity RHiSearching for target indoor temperature T in set comfort temperature and humidity interval (as shown in figure 4)setAnd target indoor humidity RHsetMore specifically, the target indoor temperature TsetIndoor environment humidity RH sampled corresponding to the current sampling period in the comfort temperature and humidity interval is setiA corresponding minimum temperature value; target indoor humidity RHsetIndoor environment temperature T obtained by sampling in current sampling period in set comfort temperature and humidity intervalaiCorresponding highest humidity value. It is easy to understand that when the humidity is relatively high, the temperature sensed by the human body rises obviously. Furthermore, the room is usually drier in winter. Thus, the target indoor temperature TsetAnd target indoor humidity RHsetFactors influencing the comfort of the human body are fully considered. At a target indoor temperature TsetAnd target indoor humidity RHsetAfter the control parameters are set, the target temperature and the target humidity are obtained, and the indoor environment temperature T is further monitoredaiAnd indoor ambient humidity RHiAnd whether the temperature and the humidity are in the set comfortable temperature and humidity interval. If yes, maintaining the target indoor temperature TsetAnd target indoor humidity RHsetDoes not change if it does not, andif the indoor comfort level is obviously reduced after a certain time, preferably 15 minutes, the heating operation is performed again by taking the preset target indoor temperature and the preset target indoor humidity as control targets. The preset target indoor temperature may be slightly adjusted with respect to the initial preset target temperature, for example, set to 21 ℃.
Alternatively, the indoor ambient temperature T sampled at a set sampling period is further determinedaiWhether it belongs to the fifth temperature interval. In particular, it is preferable when the indoor ambient temperature T isaiWhen the temperature is 24 ℃ or lower and 20 ℃ or higher, it is considered to belong to the fifth temperature range. When the indoor ambient temperature TaiWhen the temperature control device belongs to the fifth temperature interval, the deviation between the indoor environment temperature and the comfortable temperature of the human body is small, and the temperature and humidity comfortable control mode is directly entered. The temperature and humidity comfort control mode is consistent with the description in the above paragraphs, and will not be described in detail here. Similarly, after the target temperature and the target humidity are obtained, the indoor environment temperature T is further monitoredaiAnd indoor ambient humidity RHiAnd whether the temperature and the humidity are in the set comfortable temperature and humidity interval. If yes, maintaining the target indoor temperature TsetAnd target indoor humidity RHsetIf the indoor comfort level does not change, and the indoor comfort level is obviously reduced when the indoor comfort level does not change and the indoor comfort level continues for a certain time, preferably for 15 minutes, the heating operation is carried out again by taking the preset target indoor temperature and the preset target indoor humidity as control targets.
Alternatively, the indoor ambient temperature T sampled at a set sampling period is further determinedaiWhether it belongs to the sixth temperature interval. In particular, it is preferable when the indoor ambient temperature T isaiAbove 24 ℃ for at least 15 minutes, it is considered to belong to the sixth temperature interval. The temperature in the sixth temperature interval is relatively high. The air supply mode is directly entered in consideration of user's comfort, and the fan speed is controlled to 700 rpm.
It should be noted that the numerical ranges of the fourth temperature interval, the fifth temperature interval and the sixth temperature interval disclosed above are only preferred values, and can be adjusted in actual operation, but the temperature value of the fourth temperature interval, the temperature value of the fifth temperature interval and the temperature value of the sixth temperature interval should keep a trend of increasing sequentially.
The air conditioner control method disclosed by the invention optimizes the control logic of the air conditioner by taking the actual comfort of the user as a starting point according to the indoor environment temperature and the current seasonal mode through a data pointer table look-up mode, so that the control process is more accurate, the user does not need to intervene manually in the whole control process, the control performance is improved, the operation process is simplified, the energy consumption is more reasonable, and the overall performance of the air conditioner is comprehensively improved.
The invention also discloses an air conditioner, which adopts the air conditioner control method disclosed by the embodiment. The specific steps of the air conditioner control method are described in detail in the above description, and are not repeated herein, and the air conditioner adopting the air conditioner control method can achieve the same technical effects.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. An air conditioner control method is characterized by comprising the following steps:
sampling the indoor environment temperature T according to a set sampling periodaiAccording to the indoor ambient temperature TaiJudging whether to enter a temperature and humidity comfort control mode;
after entering the temperature and humidity comfort control mode, the indoor environment temperature T is obtained by sampling according to the current sampling periodaiAnd indoor ambient humidity RHiSearching target indoor temperature T in set comfort temperature and humidity intervalsetAnd target indoor humidity RHsetAnd with the target indoor temperature TsetAnd target indoor humidity RHsetAir conditioner for controlling set temperature and set humidityRunning;
monitoring indoor ambient temperature TaiAnd indoor ambient humidity RHiWhether the temperature is in the set comfortable temperature and humidity interval or not;
if the indoor ambient temperature TaiAnd indoor ambient humidity RHiIn the set comfortable temperature and humidity interval, the target indoor temperature T is keptsetAnd target indoor humidity RHsetThe change is not changed; if the indoor ambient temperature TaiAnd indoor ambient humidity RHiIf the temperature deviates from the set comfortable temperature and humidity interval, the operation of the air conditioner is controlled by taking the preset target indoor temperature and the preset target indoor humidity as the set temperature and the set humidity;
if the current seasonal mode is judged to be summer, then:
determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a first temperature interval or not; if the temperature of the air conditioner belongs to the first temperature interval, firstly, the operation of the air conditioner is controlled by taking a preset target indoor temperature and preset target indoor humidity as a set temperature and a set humidity; then controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a second temperature interval; if the temperature of the air conditioner belongs to the second temperature interval, controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a third temperature interval; if the temperature of the indoor environment is within the third temperature interval, controlling the fan to work at a set rotating speed and sampling the indoor environment humidity, and if the indoor environment humidity is higher than the humidity intervention upper limit threshold, entering a dehumidification mode; if the indoor environment humidity is lower than the humidity intervention lower limit threshold, entering an air supply mode;
and the temperature value of the first temperature interval, the temperature value of the second temperature interval and the temperature value of the third temperature interval are decreased gradually in sequence.
2. The air conditioner controlling method according to claim 1, wherein if the indoor ambient temperature T is setaiIf the difference value between the target indoor temperature and the preset target indoor temperature is more than 3 ℃, obtaining the target running frequency of the compressor through incremental PID operation;
if the indoor ambient temperature TaiAnd if the difference value between the target indoor temperature and the preset target indoor temperature is less than 3 ℃, obtaining the target running frequency of the compressor through a fuzzy algorithm.
3. The air conditioner controlling method according to claim 1, wherein the target indoor temperature T is set in a summer modesetIndoor environment humidity RH sampled corresponding to the current sampling period in the comfort temperature and humidity interval is setiA corresponding maximum temperature value; target indoor humidity RHsetIndoor environment temperature T obtained by sampling in current sampling period in set comfort temperature and humidity intervalaiCorresponding minimum humidity value.
4. The air conditioner control method according to claim 1, wherein the dehumidification mode includes:
in a second effective timing period, the air conditioner maintains the refrigeration operation;
after the second effective timing period is finished, the indoor environment temperature T sampled in the current sampling periodaiThe difference value between the set dehumidification temperature and the set dehumidification temperature is used as the set temperature, the air conditioner keeps refrigeration operation, and the fan keeps the air speed unchanged.
5. The air conditioner controlling method according to claim 1, wherein the indoor ambient temperature T sampled if the current sampling period is after entering the temperature and humidity comfort controlling modeaiIf the temperature range is within the corresponding temperature range of the set comfortable temperature and humidity interval, the indoor environment humidity RH sampled in the current sampling period is judgediWhether the wind speed is greater than a wind speed intervention threshold value or not, and if the wind speed is greater than the wind speed intervention threshold value, controlling the rotating speed of the fan to rise; and if the wind speed is lower than the wind speed intervention threshold value, controlling the rotating speed of the fan to be reduced.
6. The air conditioner control method as claimed in any one of claims 1-5, wherein if it is determined that the current seasonal mode is winter, then:
determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a fourth temperature interval or not; if the temperature of the air conditioner belongs to the fourth temperature interval, firstly, the operation of the air conditioner is controlled by taking a preset target indoor temperature and preset target indoor humidity as a set temperature and a set humidity; then controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a fifth temperature interval or not; if the temperature of the air conditioner belongs to the fifth temperature interval, controlling the air conditioner to enter a temperature and humidity comfort control mode; or
Determining an indoor ambient temperature T sampled according to a set sampling periodaiWhether the temperature belongs to a sixth temperature interval or not;
if the temperature of the air in the sixth temperature interval is within the sixth temperature interval, entering an air supply mode;
and the temperature value of the fourth temperature interval, the temperature value of the fifth temperature interval and the temperature value of the sixth temperature interval are sequentially increased.
7. The air conditioner controlling method as claimed in claim 6, wherein the target indoor temperature T is set in the winter modesetIndoor environment humidity RH sampled corresponding to the current sampling period in the comfort temperature and humidity interval is setiA corresponding minimum temperature value; target indoor humidity RHsetIndoor environment temperature T obtained by sampling in current sampling period in set comfort temperature and humidity intervalaiCorresponding highest humidity value.
8. The air conditioner controlling method according to claim 6, wherein before determining whether to enter the temperature and humidity comfort control mode, first according to the outdoor ambient temperature TodiJudging a current seasonal mode;
determining the current seasonal pattern includes the steps of:
sampling the ambient temperature T outside the chamberodi；
If the outdoor ambient temperature TodiIf the current seasonal mode is not lower than the seasonal mode temperature threshold, judging that the current seasonal mode is summer;
if the outdoor ambient temperature TodiAnd if the current seasonal mode is lower than the seasonal mode temperature threshold, judging that the current seasonal mode is winter.
9. The air conditioner controlling method according to claim 8, wherein the outdoor ambient temperature TodiSampling by a temperature sensor arranged in an outdoor unit of the air conditioner; and/or
Outdoor ambient temperature TodiThe current seasonal mode is determined by the geographical location and time of the air conditioner working place.
10. The air conditioner controlling method as claimed in claim 8, wherein if the outdoor ambient temperature T is set after entering the winter season modeodiIf the temperature is greater than or equal to the summer mode temperature threshold and the first accumulated timing period is met, the current season mode is converted into summer;
after entering summer season mode, if outdoor ambient temperature TodiAnd if the temperature is less than or equal to the winter mode temperature threshold and the accumulation meets the first accumulation timing period, the current seasonal mode is changed into the winter.
11. An air conditioner characterized by employing the air conditioner control method as claimed in any one of claims 1 to 10.
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| CN109297157B (en) | 2021-02-09 |
| CN111637603B (en) | 2021-09-24 |
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