CN106052012B - The method and device of refrigerating of convertible frequency air conditioner control is realized based on distance - Google Patents
The method and device of refrigerating of convertible frequency air conditioner control is realized based on distance Download PDFInfo
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- CN106052012B CN106052012B CN201610354101.8A CN201610354101A CN106052012B CN 106052012 B CN106052012 B CN 106052012B CN 201610354101 A CN201610354101 A CN 201610354101A CN 106052012 B CN106052012 B CN 106052012B
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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
- 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
- F24F11/62—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
-
- 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
- F24F2110/00—Control inputs relating to air properties
-
- 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
- F24F11/62—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
-
- 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
- F24F2110/30—Velocity
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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
Abstract
The invention discloses a kind of method and devices that refrigerating of convertible frequency air conditioner control is realized based on distance, which comprises air conditioner refrigerating operation carries out room temperature PID operation according to the temperature difference of real-time indoor environment temperature and setting target temperature, obtains first frequency；Indoor heat source where detecting air-conditioning simultaneously determines the real-time range between heat source and air-conditioning, real-time wind speed corresponding with real-time range and the corresponding frequency of real-time wind speed is determined, as second frequency；If real-time indoor environment temperature selects the smaller value in first frequency and second frequency as target frequency not less than setting comfort temperature；If real-time indoor environment temperature is less than setting comfort temperature, according to the fuzzy control selection target frequency based on real-time coil temperature；The compressor operation of air-conditioning is controlled according to target frequency.With the application of the invention, energy saving, the comfortable control of air-conditioning may be implemented.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, being the air-conditioning equipment for being related to adjusting room air, more
It says to body, is the method and device for being related to realizing refrigerating of convertible frequency air conditioner control based on distance.
Background technique
Air-conditioning summer can freeze, winter can heat, and can adjust room temperature and reach cool in summer and warm in winter, provide for user
Comfortable environment.While air-conditioning provides comfort for user, incident is the contradiction with high energy consumption.Energy consumption is not
User's financial burden is increased only, it is also opposite with energy-saving and environment-friendly trend.Therefore, how to be provided comfortably using air-conditioning for user
The energy consumption that air-conditioning is reduced while environment is that current air conditioner producer has been working hard and solves the problems, such as.
Existing convertible frequency air-conditioner can control compressor operating frequency according to indoor environment temperature and setting target temperature, reach
To energy-saving purpose.But it can not achieve according to the control mode that temperature controls compressor operating frequency merely more excellent
Energy Saving Control, especially in the case where mutually synthermal, different wind speed operation, it is difficult to reach ideal energy conservation, comfortable control.
Summary of the invention
The object of the present invention is to provide a kind of method and devices that refrigerating of convertible frequency air conditioner control is realized based on distance, realize empty
Energy saving, the comfortable control of tune.
For achieving the above object, the method provided by the invention for realizing refrigerating of convertible frequency air conditioner control based on distance uses
Following technical proposals are achieved:
A method of refrigerating of convertible frequency air conditioner control is realized based on distance, which comprises
Air conditioner refrigerating operation obtains real-time indoor environment temperature and setting indoor target temperature, calculates the real-time interior
The temperature difference between environment temperature and the setting indoor target temperature, as the real-time indoor temperature difference, according to the real-time Indoor Temperature
Difference carries out room temperature PID operation, obtains first frequency；Indoor heat source where real-time detection air-conditioning simultaneously determines the heat source and air-conditioning
Between real-time range, corresponding with real-time range wind speed is determined according to the corresponding relationship of known distance and wind speed and is made
For real-time wind speed, frequency corresponding with the real-time wind speed is obtained according to known wind speed and the corresponding relationship of frequency, as the
Two frequencies；
The real-time indoor environment temperature is made comparisons with setting comfort temperature；
If the real-time indoor environment temperature is not less than the setting comfort temperature, the first following control: selection is executed
The compressor of smaller value control air-conditioning in the first frequency and the second frequency is run；
If the real-time indoor environment temperature is less than the setting comfort temperature, executes the second following control: obtaining empty
The real-time coil temperature for adjusting evaporator makes comparisons the real-time coil temperature with setting coil pipe target temperature；If described real-time
Coil temperature is greater than the setting coil pipe target temperature, select smaller value in the first frequency and the second frequency as
Target frequency is run according to the compressor that the target frequency controls air-conditioning；If the real-time coil temperature is set no more than described
The current operation frequency of compressor is reduced and obtains third frequency by price fixing pipe target temperature, selects the first frequency, described the
The compressor operation of smaller value control air-conditioning in two frequencies and the third frequency.
It is provided by the invention to realize that the device of refrigerating of convertible frequency air conditioner control uses based on distance to realize aforementioned invention purpose
Following technical proposals are achieved:
A kind of device for realizing refrigerating of convertible frequency air conditioner control based on distance, described device include:
Indoor environment temperature acquiring unit, for obtaining real-time indoor environment temperature；
Coil temperature acquiring unit, for obtaining the real-time coil temperature of A/C evaporator；
Room temperature PID arithmetic element, for calculating between the real-time indoor environment temperature and setting indoor target temperature
The temperature difference carries out PID arithmetic according to the real-time indoor temperature difference, obtains and export first frequency as the real-time indoor temperature difference；
Heat source is determining and distance acquiring unit, for heat source indoor where real-time detection air-conditioning and determine the heat source with
Real-time range between air-conditioning；
Real-time wind speed acquiring unit, for being obtained and the real-time range according to the corresponding relationship of known distance and wind speed
Corresponding wind speed, and as real-time wind speed；
Second frequency acquiring unit, for being obtained and the real-time wind speed according to the corresponding relationship of known wind speed and frequency
Corresponding frequency, as second frequency；
Control model selecting unit for the real-time indoor environment temperature and setting comfort temperature, and exports ratio
Relatively result is as control model selection signal；
First control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor ring
When border temperature is not less than the setting comfort temperature, select the smaller value control in the first frequency and the second frequency empty
The compressor of tune is run；
Second control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor ring
When border temperature is less than the setting comfort temperature, the real-time coil temperature is made comparisons with setting coil pipe target temperature；If institute
Real-time coil temperature is stated greater than the setting coil pipe target temperature, select the first frequency with it is smaller in the second frequency
Value is used as target frequency, is run according to the compressor that the target frequency controls air-conditioning；If the real-time coil temperature is not more than
The current operation frequency of compressor is reduced and obtains third frequency by the setting coil pipe target temperature, select the first frequency,
The compressor operation of smaller value control air-conditioning in the second frequency and the third frequency.
Compared with prior art, the advantages and positive effects of the present invention are:
In the present invention, when the compressor to convertible frequency air-conditioner carries out frequency control, temperature factor and wind speed have been comprehensively considered
Cooperation between factor, so that blower operates the gas of driving during driving heat exchange amount caused by refrigerant when compressor is run and being somebody's turn to do
Stream is formed by heat exchange amount and matches, avoid that press frequency is excessively high or rotation speed of fan it is excessively high caused by meaningless energy consumption, it is real
The energy-saving run of existing air-conditioning.Moreover, wind speed controls at a distance from air conditioning room according to heat source, the comfort level of user is improved, and
Noise can be reduced in low wind speeds.In addition, for temperature factor in the control of compressor frequency, according to indoor environment temperature
With the size of setting comfort temperature, selection is controlled using room temperature PID or uses the fuzzy control based on evaporator coil temperature, both
It can cool down in time, quickly to room when room temperature is high, reach refrigeration purpose, and coil temperature can be stablized in coil pipe mesh
Temperature is marked, so that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect out.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart that method one embodiment of refrigerating of convertible frequency air conditioner control is realized the present invention is based on distance；
Fig. 2 is the structural block diagram that device one embodiment of refrigerating of convertible frequency air conditioner control is realized the present invention is based on distance.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to drawings and examples,
Invention is further described in detail.
Referring to Figure 1, which show method one controlled the present invention is based on distance realization refrigerating of convertible frequency air conditioner and implements
The flow chart of example.
As shown in Figure 1, the embodiment is used based on the method that distance realizes refrigerating of convertible frequency air conditioner control has following step
Process realize:
Step 11: air conditioner refrigerating operation obtains real-time indoor environment temperature, setting indoor target temperature, meanwhile, it examines in real time
Indoor heat source where surveying air-conditioning and the real-time range for determining heat source and air conditioning room.
Specifically, when air-conditioning is switched on and runs, the indoor environment temperature in room locating for real-time detection air-conditioning, real-time detection
Temperature as real-time indoor environment temperature.So-called real-time indoor environment temperature refers to after air-conditioning booting operation, according to setting
Determine the indoor environment temperature that temperature sampling frequency is constantly obtained and updated.The acquisition of real-time indoor environment temperature can use existing
Technology is realized.For example, by the way that air-conditioning air inlet is arranged in or close to the temperature sensor detection air inlet temperature of air-conditioning air inlet
Degree, the master control borad of air-conditioning passes through the output signal of temperature collection sensor and is handled, to get inlet air temperature, and will
The temperature is as real-time indoor environment temperature.
Setting indoor target temperature, which refers to, wishes the attainable target temperature of indoor environment institute, the setting indoor target temperature
It can be user and pass through the temperature value that remote controler or control terminal for air conditioner or air-conditioning panel are inputted, be also possible to air-conditioning master
The setting value that control plate calls automatically.Regardless of the temperature value is set using which kind of mode, can be got by air-conditioning master control borad.
After air-conditioning booting operation, in addition to the real-time indoor environment temperature in room locating for real-time detection air-conditioning, also to examine in real time
Indoor heat source where surveying air-conditioning, and determine the real-time range of heat source and air conditioning room.So-called real-time range is opened in air-conditioning
After machine operation, the distance between indoor airflow and air-conditioning for constantly obtaining and update according to setting sample frequency.The detection of heat source
And the determination of distance of heat source and air conditioning room can be realized using the prior art.For example, by the way that infrared battle array is arranged on air-conditioning
Sensor or common infrared sensor, calculate in conjunction with certain algorithm.
As preferred embodiment, indoor heat source where detecting air-conditioning and determine between heat source and air-conditioning it is real-time away from
From being obtained, specifically included using following technological means:
The infrared sensor controlled in air-conditioning carries out rotary scanning, the temperature information in scanning range is obtained, according to temperature
Information acquisition heat source temperature curve.
Specifically, infrared sensor and rotating mechanism can be arranged on air-conditioning, the controller of air-conditioning controls rotating machine
Structure driving infrared sensor rotates in biggish angular range.The infrared sensor of rotation is to the region within the scope of scanning angle
It is scanned, the temperature information in real-time acquisition scans region.Temperature information reflection is sweeping of currently acquiring of infrared sensor
The radiation intensity of object in range is retouched, radiation intensity is stronger, then it represents that the temperature value of infrared sensor acquisition is higher.Therefore, exist
In the scanning process of infrared sensor, scanning is arrived again to the process after heat source, infrared sensing to source center before scanning to heat source
The temperature value of device sampling is to arrive a low process again from low to high, this is process of the scanning to a heat source.Air-conditioning receives red
The temperature information of outer sensor sampling is generated indoor by the analysis of the i.e. radiation intensity of temperature information acquired to infrared sensor
The temperature curve of heat source.
Infrared sensor rotation is driven by rotational structure, so only needing single-point infrared sensor that entire sky can be realized
Between range temperature scanning, do not need array infrared sensor, data processing is relatively simple, expend the time it is short.
Then, according to heat source temperature curve determine where air-conditioning between indoor heat source and heat source and air-conditioning it is real-time away from
From.
Specifically, air conditioner corresponds to the radiation intensity of heat source by the crest value in analysis temperature curve, crest value, according to
Crest value may determine that the number of heat source in current environment, wherein the coordinate value of crest value is the coordinate value i.e. position of heat source.
Moreover, the temperature value of infrared sensor sampling and the distance of object have relationship, and when object distance air-conditioning is remoter, infrared sensing
The temperature value of device acquisition is lower, conversely, closer to object true temperature value.It specifically, can be according to temperature in temperature curve most
Difference between high level and minimum determines the distance between heat source and air conditioner, is acquired according to infrared sensor in the scan period
The maximum value of temperature value and the difference of minimum value can judge the heat source of Current Scan and the relative distance of background, difference is got over
It is small, illustrate that heat source and background are close, i.e., heat source and air-conditioning be farther out.
Step 12: calculating real-time indoor environment temperature and set the temperature difference between indoor target temperature, as real-time interior
The temperature difference carries out room temperature PID operation according to the real-time indoor temperature difference, obtains first frequency；It is corresponding with wind speed according to known distance
Relationship determines wind speed corresponding with real-time range and as real-time wind speed, is obtained according to known wind speed and the corresponding relationship of frequency
Frequency corresponding with real-time wind speed, as second frequency.
Master control borad calculates temperature between the two after getting real-time indoor environment temperature and setting indoor target temperature
Difference, as the real-time indoor temperature difference.Then, room temperature PID operation is carried out according to the real-time indoor temperature difference, acquisition controls compressor
A frequency, and the frequency is defined as first frequency.Wherein, room temperature PID operation carried out according to the temperature difference, obtained to compressor
The specific method of the target frequency controlled can be realized using the prior art, be not elaborated and limited herein.
Meanwhile wind speed corresponding with real-time range is obtained also according to the corresponding relationship of known distance and wind speed, as reality
When wind speed.Specifically, corresponding relationship of the distance with wind speed is previously stored in the memory of air-conditioning master control borad, wherein away from
From the distance between indoor airflow and air-conditioning is referred to, wind speed refers to the speed of indoor unit fan of air conditioner operating.For it is different away from
From being corresponding with not exactly the same or complete different wind speed, and distance is bigger, wind speed is lower.Also, it is preferred that, distance with
The corresponding relationship of wind speed be by research staff under theoretical direction, energy obtained by a large amount of operation of air conditioner simulated experiment
It is enough to take into account air-conditioning comfort and energy saving as far as possible.Therefore, corresponding with wind speed from distance after obtaining real-time range
Real-time range is first found in relationship, then obtains wind speed corresponding to the real-time range, and using the wind speed as real-time wind speed.
Then, frequency corresponding with real-time wind speed is obtained according to known wind speed and the corresponding relationship of frequency, as second frequency.
Specifically, being also previously stored with the corresponding relationship of wind speed and frequency in the memory of air-conditioning master control borad, wherein
Wind speed refers to that the speed of indoor unit fan of air conditioner operating, frequency refer to the running frequency of compressor.It is corresponding for different wind speed
There is different frequencies.Also, it is preferred that, the corresponding relationship of wind speed and frequency be by research staff under theoretical direction, through excessive
The operation of air conditioner simulated experiment of amount is obtained, can take into account air-conditioning comfort and energy saving as far as possible.Establish wind speed with
The starting point of the corresponding relationship of frequency are as follows: for air-conditioning system, if indoor machine fan revolving speed is certain, blower operating is driven
Dynamic air-flow is certain, that is, air quantity is certain；Air quantity is certain, the heat exchange formed when passing through indoor set heat exchanger with heat exchanger
Ability is certain.If compressor operating frequency is too small, refrigerant circulation is very few, can reduce the exchange capability of heat of indoor heat exchanger, make
Indoor supply air temperature is obtained to be not suitable for.And if compressor operating frequency is excessive, refrigerant circulation is big, indoor heat exchanger exchange capability of heat
Greatly, but since the air quantity generated under certain interior machine revolving speed is too small, heat exchanger heat exchange efficiency decline, and the big function of compressor be will lead to
Rate operation waste energy consumption.Therefore, it is necessary to and restriction corresponding with frequency work to wind speed.
Therefore, after obtaining real-time wind speed, real-time wind speed is first found from wind speed and the corresponding relationship of frequency, then
Frequency corresponding to the real-time wind speed is obtained, and using the frequency as second frequency.
Moreover, a wind speed may correspond to a frequency, it is also possible to corresponding multiple frequencies.If a wind speed corresponds to more
A frequency namely a real-time wind speed are corresponding with multiple frequencies, in this case, selecting the maximum frequency in multiple frequencies as
Two frequencies.
Step 13: judging whether real-time indoor environment temperature is less than setting comfort temperature.If so, executing step 15；If
It is no, execute step 14.
The step can carry out simultaneously with step 12, be divided into two steps herein merely to clearly stating the reality
Apply the control process of example.After step 11 gets real-time indoor environment temperature, real-time indoor environment temperature and setting are relaxed
Thermophilic degree is made comparisons, and judges whether real-time indoor environment temperature is less than setting comfort temperature, to be executed according to comparison result
The control of step 14 or step 15.Wherein, one default setting temperature of air-conditioning when setting comfort temperature can be factory, can also
To be the set temperature voluntarily selected by user and be arranged.If it is by user's sets itself, air-conditioning can provide one
Reference temperature value, it is for reference.Such as, it is proposed that the comfort temperature is set as 27 DEG C.
Step 14: if step 13 determines that real-time indoor environment temperature not less than setting comfort temperature, executes as follows
First control: it selects the smaller value in first frequency and second frequency as target frequency, air-conditioning is controlled according to target frequency
Compressor operation.
If real-time indoor environment temperature shows that room temperature is higher at this time not less than setting comfort temperature, need quickly
Cooling.In this case, first frequency and second frequency that comparison step 12 obtains, select the smaller value in the two, as target
Frequency is run according to the compressor that target frequency controls air-conditioning.
Step 15: if step 13 determines that real-time indoor environment temperature is less than setting comfort temperature, executing following the
Two controls: obtaining the real-time coil temperature of A/C evaporator and makes comparisons with setting coil pipe target temperature；If more than setting coil pipe
Target temperature selects the smaller value in first frequency and second frequency as target frequency；If no more than setting coil pipe target temperature
The current operation frequency of compressor is reduced and obtains third frequency by degree, is selected in first frequency, second frequency and third frequency
Smaller value is as target frequency；The compressor operation of air-conditioning is controlled according to target frequency.
If step 13 determines that room temperature is less than comfort temperature, to avoid the too fast decline of temperature from causing body-sensing uncomfortable,
Further consider evaporator coil temperature, to adjust compressor operating frequency in time, enables evaporator coil temperature steady
Surely coil pipe target temperature is arrived, to adjust air conditioning exhausting temperature, reaches cool without cold comfortable air-out effect.
Specifically, firstly, the real-time coil temperature and setting coil pipe target temperature of A/C evaporator are obtained, by real-time disk
Tube temperature degree is made comparisons with setting coil pipe target temperature, to judge whether real-time coil temperature is greater than setting coil pipe target temperature.Its
In, the detection of evaporator coil temperature can be detected by the way that coil temperature sensor is arranged on an evaporator.Set coil pipe mesh
One default setting temperature of air-conditioning when mark temperature can be factory, naturally it is also possible to be one for voluntarily being selected by user and being arranged
A set temperature.If it is by user's sets itself, since user is for the concept of coil temperature and its performance indicator of representative
Be not it is very clear, a reference temperature value is preferably provided by air-conditioning, it is for reference selected.Such as, it is proposed that by the coil pipe target
Temperature is set as 14 DEG C.
If real-time coil temperature is greater than setting coil pipe target temperature, show that air conditioning exhausting temperature will not be relatively low, thus, it will
The adjustment of room temperature adjusts main target as temperature, select smaller value in first frequency and second frequency as target frequency,
The compressor operation of air-conditioning is controlled according to target frequency.And if coil temperature shows at this time no more than setting coil pipe target in real time
Coil temperature is relatively low, is easy to cause air conditioning exhausting temperature relatively low and sends out cold wind.To solve this problem, by the current fortune of compressor
Line frequency reduces and obtains third frequency.Then, select the smaller value in first frequency, second frequency and third frequency as mesh
Frequency is marked, is run according to the compressor that target frequency controls air-conditioning.
Frequency of air condition compressor is controlled using the above method, has been comprehensively considered between temperature factor and wind speed factor
Cooperation, so that the air-flow of blower operating driving is formed during driving heat exchange amount caused by refrigerant when compressor is run and being somebody's turn to do
Heat exchange amount match, avoid that press frequency is excessively high or rotation speed of fan it is excessively high caused by meaningless energy consumption, realize air-conditioning
Energy-saving run.Moreover, wind speed controls at a distance from air conditioning room according to heat source, the comfort of air-supply and relaxing for user are also improved
Appropriateness.In addition, for temperature factor in the control of compressor frequency, according to the big of indoor environment temperature and setting comfort temperature
It is small, selection using room temperature PID control or use the fuzzy control based on evaporator coil temperature, can when room temperature is high in time,
Quickly cool down to room, reaches refrigeration purpose, and coil temperature can be stablized in coil pipe target temperature, so that air-conditioning goes out
Air temperature is comfortable, reaches cool without cold comfortable cooling effect out.
It should be noted that still constantly being obtained indoor in real time when executing the fuzzy control in the second control process
Environment temperature, and compare the size of itself and setting comfort temperature.Once real-time indoor environment temperature is not less than setting comfort temperature,
The second control process is then exited, the first control process is transferred to.
As preferred embodiment, a setting highest frequency is previously stored in the memory of air-conditioning master control borad, such as
Fruit step 14 determines that the smaller value in first frequency and second frequency is greater than setting highest frequency or step 15 determines the first frequency
Smaller value in rate, second frequency and third frequency is greater than setting highest frequency, then will set highest frequency as target frequency.
That is, either which frequency to control compressor according to, the running frequency of guarantee compressor is no more than setting most high frequency
Rate.
Can also include following control processes for the second control as preferred embodiment:
If it is determined that real-time coil temperature is no more than setting coil pipe target temperature, then judges whether it is after booting for the first time less
In, and different processing is executed according to judging result.
Specifically, if coil temperature is after air-conditioning booting for the first time no more than setting coil pipe target temperature, third frequency in real time
Rate is setting refrigeration minimum frequency；If real-time coil temperature is non-after air-conditioning booting to be not more than setting coil pipe target temperature for the first time,
Third frequency is between current operation frequency and refrigeration minimum frequency.Wherein, refrigeration minimum frequency is that air conditioner refrigerating was run
The minimum frequency of setting in journey.Generally, which is the preceding parameter set of air-conditioning factory.
That is, reading compressor if non-for the first time no more than setting coil pipe target temperature after coil temperature booting in real time
Current operation frequency, then by third frequency be chosen to be between current operation frequency and refrigeration minimum frequency between a frequency
Rate value.
The purpose handled in this way is, if coil temperature is not more than setting coil pipe target temperature for the first time in real time, to avoid
The reduction of air conditioning exhausting temperature and cause outlet air be cold wind, first the frequency of compressor is limited so that coil temperature as early as possible on
Rise to setting coil pipe target temperature.And if coil temperature is non-for the first time no more than setting coil pipe target temperature in real time, show
The fuzzy control of the second control process was executed, then coil temperature will not be too lower than setting coil pipe target temperature, at this point, third frequency
Rate is unnecessary near minimum, but between current operation frequency and refrigeration minimum frequency, to take into account the speed of room temperature adjusting.
It, can for non-for the first time no more than the determination of third frequency when setting coil pipe target temperature after the booting of real-time coil temperature
With a variety of methods, it is preferred to use following methods:
Current operation frequency is reduced setting adjustment frequency every setting adjustment time by the current operation frequency for obtaining compressor
Rate, the frequency after reduction are third frequency.
Wherein, a pre-set frequency values before setting adjustment frequency as air-conditioning factory, or voluntarily set for user
A fixed frequency values, for example, being set as 5Hz.The frequency values indicate every time as a frequency adjusting step to current operation
The reduction amplitude of frequency.Moreover, to frequency reduction using every setting adjustment time reduce it is primary by the way of, realize gradually adjust
Section.
Current operation frequency is reduced setting adjustment frequency as third frequency every time by embodiment more preferably
Afterwards, first judge whether set coil pipe target temperature and the difference of real-time coil temperature is not less than setting overshoot temperature value.If so,
Setting adjustment time continues to execute after reaching reduces setting adjustment frequency as the process of third mark frequency for current operation frequency；
Otherwise, keep third frequency constant.Wherein, overshoot temperature value is also the temperature value of a setting, for example, being set as 1 DEG C.
It is using the advantages of above-mentioned processing: if it is determined that the difference of setting coil pipe target temperature and real-time coil temperature is greater than
Overshoot temperature value shows coil temperature far below setting coil pipe target temperature, it is still necessary to further frequency reducing.Moreover, as previously mentioned,
Down conversion process process is that interval setting adjustment time reduces once.Adjustment time is also a pre-set value, indicates frequency
The interval time of rate adjustment.For example, can be set as 2min.That is, after adjustment is primary, first using frequency adjusted as
Third frequency keeps third frequency constant when adjustment time is not up to.After adjustment time arrival, then reads compressor and work as
Preceding running frequency continues to carry out frequency reducing according to setting adjustment frequency based on current operation frequency.
And if step determines the difference of setting coil pipe target temperature and real-time coil temperature and is not more than overshoot temperature value, show
Though coil temperature, which does not reach also, sets coil pipe target temperature, and the difference of setting coil pipe target temperature is smaller, is not more than overshoot temperature
Angle value to avoid there is the overshoot of coil temperature, and influences room temperature adjustment speed at this point, then no longer reducing frequency.Thus, it protects
It is constant to hold third frequency.
Fig. 2 is referred to, the figure shows the present invention is based on one, the device implementations that distance realizes refrigerating of convertible frequency air conditioner control
The structural block diagram of example.
As shown in Fig. 2, the structural unit and its function that the air conditioner refrigerating control device of the embodiment is included are as follows:
Indoor environment temperature acquiring unit 201, for obtaining real-time indoor environment temperature.
Room temperature PID arithmetic element 202, for calculating the real-time indoor environment of the acquisition of indoor environment temperature acquiring unit 201
The temperature difference between temperature and setting indoor target temperature carries out PID fortune according to the real-time indoor temperature difference as the real-time indoor temperature difference
It calculates, obtains and export first frequency.
Coil temperature acquiring unit 203, for obtaining the real-time coil temperature of A/C evaporator.
Heat source is determining and distance acquiring unit 204, for heat source indoor where real-time detection air-conditioning and determine heat source with
Real-time range between air-conditioning.
Real-time wind speed acquiring unit 205, for according to the acquisition of the corresponding relationship of known distance and wind speed and real-time range
Corresponding wind speed, and as real-time wind speed.
Second frequency acquiring unit 206, for being obtained and real-time wind speed according to the corresponding relationship of known wind speed and frequency
Corresponding frequency, as second frequency.
Control model selecting unit 207, for comparing real-time interior ring acquired in indoor environment temperature acquiring unit 201
Border temperature and setting comfort temperature, and comparison result is exported as control model selection signal.
First control unit 208, the comparison result for exporting in control model selecting unit 207 are real-time indoor environment
When temperature is not less than setting comfort temperature, the first frequency and second frequency for selecting room temperature PID arithmetic element 202 to export obtain single
Smaller value in the second frequency of 206 output of member is run as target frequency according to the compressor that target frequency controls air-conditioning.
Second control unit 209, the comparison result for exporting in control model selecting unit 207 are real-time indoor environment
When temperature is less than setting comfort temperature, real-time coil temperature is made comparisons with setting coil pipe target temperature.If real-time coil temperature
Greater than setting coil pipe target temperature, select the smaller value in first frequency and second frequency as target frequency, according to target frequency
Rate controls the compressor operation of air-conditioning；If real-time coil temperature is no more than setting coil pipe target temperature, by the current fortune of compressor
Line frequency, which reduces, obtains third frequency, selects smaller value in first frequency, second frequency and third frequency as target frequency,
The compressor operation of air-conditioning is controlled according to target frequency.
Heat source is determining and distance acquiring unit 204 can be using the knot for being able to detect heat source and determining distance in the prior art
Structure is realized.As preferred embodiment, heat source is determining and distance acquiring unit 204 is realized using following structures:
Include:
Infrared sensor is arranged in air-conditioning；
Rotating mechanism, for driving infrared sensor to rotate；
Heat source is determining and apart from subelement is obtained, for obtaining the temperature information in infrared sensor scanning range, according to
Temperature information obtains heat source temperature curve, according to heat source temperature curve determine indoor heat source where air-conditioning and heat source and air-conditioning it
Between real-time range.
Each structural unit in above-mentioned apparatus runs corresponding software program, and executes air conditioner refrigerating according to the process of Fig. 1
The comfortable control of the energy conservation of air-conditioning is realized in control.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of method for realizing refrigerating of convertible frequency air conditioner control based on distance, which is characterized in that the described method includes:
Air conditioner refrigerating operation obtains real-time indoor environment temperature and setting indoor target temperature, calculates the real-time indoor environment
The temperature difference between temperature and the setting indoor target temperature, as the real-time indoor temperature difference, according to the real-time indoor temperature difference into
Row room temperature PID operation obtains first frequency；Indoor heat source where real-time detection air-conditioning simultaneously determines between the heat source and air-conditioning
Real-time range, corresponding with real-time range wind speed is determined according to the corresponding relationship of known distance and wind speed and as reality
When wind speed, frequency corresponding with the real-time wind speed is obtained according to known wind speed and the corresponding relationship of frequency, frequently as second
Rate；
The real-time indoor environment temperature is made comparisons with setting comfort temperature；
If the real-time indoor environment temperature is not less than the setting comfort temperature, the first following control is executed: described in selection
The compressor of smaller value control air-conditioning in first frequency and the second frequency is run；
If the real-time indoor environment temperature is less than the setting comfort temperature, executes the second following control: obtaining air-conditioning and steam
The real-time coil temperature for sending out device makes comparisons the real-time coil temperature with setting coil pipe target temperature；If the real-time coil pipe
Temperature is greater than the setting coil pipe target temperature, selects the smaller value in the first frequency and the second frequency as target
Frequency is run according to the compressor that the target frequency controls air-conditioning；If the real-time coil temperature is not more than the setting disk
The current operation frequency of compressor is reduced and obtains third frequency by pipe target temperature, selects the first frequency, second frequency
The compressor operation of smaller value control air-conditioning in rate and the third frequency.
2. the method according to claim 1, wherein described in indoor heat source where the detection air-conditioning and determination
Real-time range between heat source and air-conditioning, specifically includes:
The infrared sensor controlled in air-conditioning carries out rotary scanning, the temperature information in scanning range is obtained, according to the temperature
Information acquisition heat source temperature curve；
The real-time range between the indoor heat source in air-conditioning place and the heat source and air-conditioning is determined according to the heat source temperature curve.
3. the method according to claim 1, wherein in the wind speed and the corresponding relationship of frequency, a wind speed
Multiple frequencies are corresponded to, the second frequency is the corresponding maximum frequency of the real-time wind speed.
4. the method according to claim 1, wherein if the first frequency with it is smaller in the second frequency
Smaller value in value or the first frequency, the second frequency and the third frequency is greater than setting highest frequency, then will
The setting highest frequency is run as the target frequency according to the compressor that the target frequency controls air-conditioning.
5. method according to claim 1 to 4, which is characterized in that if the real-time coil temperature is in air-conditioning
It is not more than the setting coil pipe target temperature after booting for the first time, the third frequency is setting refrigeration minimum frequency；If the reality
When coil temperature the air-conditioning booting after it is non-for the first time be not more than the setting coil pipe target temperature, the third frequency is between institute
It states between current operation frequency and the refrigeration minimum frequency.
6. according to the method described in claim 5, it is characterized in that, if the real-time coil temperature is non-after air-conditioning booting
It is not more than the setting coil pipe target temperature for the first time, the third frequency is determined using following methods:
The current operation frequency is reduced setting every setting adjustment time and adjusted by the current operation frequency for obtaining compressor
Whole frequency, the frequency after reduction are the third frequency.
7. according to the method described in claim 6, being adjusted it is characterized in that, the current operation frequency is reduced the setting every time
After whole frequency is as the third frequency, first judges the setting coil pipe target temperature and the difference of the real-time coil temperature is
It is no to be not less than setting overshoot temperature value；If so, being continued to execute after setting adjustment time arrival by the current operation frequency
Rate reduces process of the setting adjustment frequency as the third frequency and otherwise keeps the third frequency constant.
8. a kind of device for realizing refrigerating of convertible frequency air conditioner control based on distance, which is characterized in that described device includes:
Indoor environment temperature acquiring unit, for obtaining real-time indoor environment temperature；
Coil temperature acquiring unit, for obtaining the real-time coil temperature of A/C evaporator；
Room temperature PID arithmetic element, for calculating the real-time indoor environment temperature and setting the temperature difference between indoor target temperature,
As the real-time indoor temperature difference, PID arithmetic is carried out according to the real-time indoor temperature difference, obtains and exports first frequency；
Heat source is determining and distance acquiring unit, indoor heat source where being used for real-time detection air-conditioning simultaneously determine the heat source and air-conditioning
Between real-time range；
Real-time wind speed acquiring unit, it is corresponding with the real-time range for being obtained according to known distance with the corresponding relationship of wind speed
Wind speed, and as real-time wind speed；
Second frequency acquiring unit, it is corresponding with the real-time wind speed for being obtained according to known wind speed with the corresponding relationship of frequency
Frequency, as second frequency；
Control model selecting unit for the real-time indoor environment temperature and setting comfort temperature, and exports and compares knot
Fruit is as control model selection signal；
First control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor environment temperature
When degree is not less than the setting comfort temperature, the smaller value control air-conditioning in the first frequency and the second frequency is selected
Compressor operation；
Second control unit, the comparison result for exporting in the control model selecting unit are the real-time indoor environment temperature
When degree is less than the setting comfort temperature, the real-time coil temperature is made comparisons with setting coil pipe target temperature；If the reality
When coil temperature be greater than the setting coil pipe target temperature, select the smaller value work in the first frequency and the second frequency
For target frequency, run according to the compressor that the target frequency controls air-conditioning；If the real-time coil temperature is no more than described
Coil pipe target temperature is set, the current operation frequency of compressor is reduced and obtains third frequency, selects the first frequency, described
The compressor operation of smaller value control air-conditioning in second frequency and the third frequency.
9. device according to claim 8, which is characterized in that the heat source is determining and distance acquiring unit includes:
Infrared sensor is arranged in air-conditioning；
Rotating mechanism, for driving the infrared sensor to rotate；
Heat source is determining and apart from subelement is obtained, for obtaining the temperature information in the infrared sensor scanning range, according to
The temperature information obtains heat source temperature curve, indoor heat source where determining air-conditioning according to the heat source temperature curve and described
Real-time range between heat source and air-conditioning.
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| CN106642549A (en) * | 2016-12-01 | 2017-05-10 | 青岛海尔空调器有限总公司 | Method and device for achieving refrigeration control of air conditioner based on distance |
| CN106610087A (en) * | 2016-12-01 | 2017-05-03 | 青岛海尔空调器有限总公司 | Air conditioner refrigeration control achieving method and device |
| CN106679071A (en) * | 2016-12-01 | 2017-05-17 | 青岛海尔空调器有限总公司 | Method and device for realizing refrigeration control of air conditioner |
| CN106839256A (en) * | 2016-12-01 | 2017-06-13 | 青岛海尔空调器有限总公司 | The method and device of air conditioner refrigerating control is realized based on distance |
| CN107101328B (en) * | 2017-04-21 | 2019-12-06 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN114909787B (en) * | 2022-04-25 | 2023-10-20 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
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