CN106052011A - Air conditioner refrigeration control method and device - Google Patents
Air conditioner refrigeration control method and device Download PDFInfo
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- CN106052011A CN106052011A CN201610354089.0A CN201610354089A CN106052011A CN 106052011 A CN106052011 A CN 106052011A CN 201610354089 A CN201610354089 A CN 201610354089A CN 106052011 A CN106052011 A CN 106052011A
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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
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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
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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
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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
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Abstract
The invention discloses an air conditioner refrigeration control method and device. The air conditioner refrigeration control method comprises the steps that the real-time indoor environment temperature and the set indoor target temperature are obtained, the temperature difference between the real-time indoor environment temperature and the set indoor target temperature is calculated to serve as the real-time temperature difference, room temperature PID operation is conducted according to the real-time temperature difference, and a first frequency is obtained; the real-time distance between an indoor heat source and an air conditioner is determined and compared with the set distance; if the real-time distance is not smaller than the set distance, an air conditioner compressor is controlled to operate according to the first frequency; and if the real-time distance is smaller than the set distance, the real-time coil temperature of an air conditioner evaporator is obtained, the coil target temperature corresponding to the real-time distance is determined to serve as the real-time coil target temperature, the real-time coil temperature difference between the real-time coil temperature and the real-time coil target temperature is calculated, coil temperature PID operation is conducted, a second frequency is obtained, and the smaller of the first frequency and the second frequency is selected to control the air conditioner compressor to operate. By means of the air conditioner refrigeration control method and device, the good refrigeration comfort can be achieved.
Description
Technical field
The invention belongs to air-conditioning technique field, specifically, relate to a kind of air conditioner refrigerating control method and control
Device.
Background technology
Hot summer, a lot of people be unable to do without air-conditioning.But, owing to the leaving air temp of air-conditioning will be far below setting
Fixed temperature, air conditioning exhausting temperature is low, and the wind of blowout is cold wind.Cold wind blows on the person, feels the most uncomfortable, and easily
Cool feeling emits, and the symptoms such as mouth and nose are dry, have sore throat, namely the air conditioning disease that is easy to get easily occurs in long-time use.
In order to solve to cause suffering from the problem of air conditioning disease because air conditioning exhausting temperature is supercool, prior art is to air-conditioning system
During cold control, make to control to compressor of air conditioner running frequency according to the temperature difference between evaporator coil temperature and coil pipe target temperature,
Make air conditioning exhausting temperature pleasant, reach cool and the coldest comfortable cooling effect.
But, in prior art, coil pipe target temperature immobilizes, it is difficult to reach preferably freeze comfortableness and quick system
Cold effect.
Summary of the invention
It is an object of the invention to provide a kind of air conditioner refrigerating control method and control device, preferably freezing comfortable with realization
Property.
For achieving the above object, the air conditioner refrigerating control method that the present invention provides uses following technical proposals to give reality
Existing:
A kind of air conditioner refrigerating control method, described method includes:
Operation of air conditioner, obtains real-time indoor environment temperature and sets indoor objects temperature, calculating described real-time indoor environment temperature
And the temperature difference between described target setting temperature, as the real-time temperature difference, carries out room temperature PID computing according to the described real-time temperature difference, obtains
Obtain first frequency；Detect the indoor thermal source in air-conditioning place in real time and determine the real-time distance between described thermal source and air-conditioning, by institute
State real-time distance to make comparisons with setpoint distance；
If described real-time distance is not less than described setpoint distance, performs following first and control:
Control compressor of air conditioner according to described first frequency to run；
If described real-time distance is less than described setpoint distance, performs following second and control:
Obtain the real-time coil temperature of A/C evaporator, determine according to the corresponding relation of known distance Yu coil pipe target temperature and
The coil pipe target temperature of described real-time distance correspondence, as real-time coil pipe target temperature, calculates described real-time coil temperature with described
The temperature difference between coil pipe target temperature in real time, as the real-time coil pipe temperature difference, carries out dish temperature PID fortune according to the described real-time coil pipe temperature difference
Calculate, it is thus achieved that second frequency, select the smaller value in described first frequency and described second frequency to control compressor of air conditioner and run.
For realizing aforementioned invention purpose, the air conditioner refrigerating that the present invention provides controls device and uses following technical proposals to come in fact
Existing:
A kind of air conditioner refrigerating controls device, and described device includes:
Indoor environment temperature acquiring unit, is used 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 described real-time indoor environment temperature and the temperature difference set between indoor objects temperature,
As the most indoor temperature difference, carry out PID arithmetic according to the described real-time indoor temperature difference, it is thus achieved that and export first frequency；
Thermal source determines and distance acquiring unit, and the thermal source indoor for detection air-conditioning place in real time also determines described thermal source and air-conditioning
Between real-time distance；
In real time coil pipe target temperature acquiring unit, for according to the corresponding relation of known distance with coil pipe target temperature obtain with
The coil pipe target temperature that described real-time distance is corresponding, and as real-time coil pipe target temperature；
Dish temperature PID arithmetic unit, for calculating the temperature difference between described real-time coil temperature and real-time coil pipe target temperature, as
The coil pipe temperature difference, carries out PID arithmetic according to the described real-time coil pipe temperature difference in real time, it is thus achieved that and export second frequency；
Control model selects unit, for the size of relatively described real-time distance with setpoint distance, and exports comparative result conduct
Control model selects signal；
First control unit, is that described real-time distance is not less than for selecting the comparative result of unit output in described control model
During described setpoint distance, described first frequency is selected to control the compressor operating of air-conditioning；
Second control unit, for selecting the comparative result of unit output to be that described real-time distance is less than institute in described control model
When stating setpoint distance, the smaller value in described first frequency and described second frequency is selected to control the compressor operating of air-conditioning.
Compared with prior art, advantages of the present invention and good effect are:
The present invention, by setting thermal source distance, compares the real-time distance of thermal source distance air-conditioning and the size of setpoint distance, in real time
When distance is not less than setpoint distance, do not consider that dish temperature PID controls and controls compressor operating only with room temperature PID, thus to room
Between lower the temperature rapidly, it is to avoid the problem of poor refrigerating efficiency, and when in real time distance no more than setpoint distance, it is considered to dish temperature
PID controls so that air conditioning exhausting temperature pleasant, reaches cool and the coldest comfortable cooling effect.And, control in dish temperature PID
During system, dish temperature target temperature, according to thermal source and the distance accommodation in real time of air conditioning room, further increases out pathogenic wind-warm
The comfortableness of degree, it helps reduce operation of air conditioner energy consumption.
After reading in conjunction with the accompanying the detailed description of the invention of the present invention, the other features and advantages of the invention will become more clear
Chu.
Accompanying drawing explanation
Fig. 1 is the flow chart of one embodiment of air conditioner refrigerating control method of the present invention；
Fig. 2 is the structured flowchart that air conditioner refrigerating of the present invention controls one embodiment of device.
Detailed description of the invention
With detailed description of the invention, technical scheme is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, this figure show the flow chart of first embodiment of air conditioner refrigerating control method of the present invention.
As it is shown in figure 1, the detailed process that this embodiment realizes the method that air conditioner refrigerating controls is as follows:
Step 11: air conditioner refrigerating runs, obtains real-time indoor environment temperature and sets indoor objects temperature；Meanwhile, detect in real time
The thermal source that air-conditioning place is indoor, and determine the real-time distance of thermal source and air conditioning room.
Specifically, when air-conditioning start runs, the indoor environment temperature in room residing for detection air-conditioning, detects in real time in real time
Temperature as real-time indoor environment temperature.So-called real-time indoor environment temperature, refers to after air-conditioning start runs, according to setting
The indoor environment temperature that fixed temperature sample frequency constantly obtains and updates.The acquisition of indoor environment temperature in real time can use existing
Technology realizes.Such as, by being arranged on air-conditioning air inlet or the temperature sensor detection air intake temperature near air-conditioning air inlet
Degree, the master control borad of air-conditioning passes through the output signal of collecting temperature sensor and processes, thus getting inlet temperature, and will
This temperature is as real-time indoor environment temperature.
Set indoor objects temperature to refer to wish the target temperature that indoor environment can reach, this setting indoor objects temperature
Can be the temperature value that user passes through remote controller or control terminal for air conditioner or air-conditioning panel is inputted, it is also possible to be air-conditioning master
The setting value that control plate calls automatically.No matter which kind of mode this temperature value uses set, and all can be got by air-conditioning master control borad.
After air-conditioning start runs, except detecting the real-time indoor environment temperature in room residing for air-conditioning in real time, also to examine in real time
Survey the thermal source that air-conditioning place is indoor, and determine the real-time distance of thermal source and air conditioning room.So-called real-time distance, is to start shooting at air-conditioning
After operation, constantly obtain and distance between the indoor airflow and the air-conditioning that update according to setting sample frequency.The detection of thermal source and
Thermal source can use prior art to realize with the determination of distance of air conditioning room.Such as, by arranging infrared array on air-conditioning
Sensor or common infrared sensor, calculate in conjunction with certain algorithm.
As preferred embodiment, thermal source that detection air-conditioning place is indoor and determine between thermal source and air-conditioning real-time away from
From, use following technological means to obtain, specifically include:
The infrared sensor controlled in air-conditioning carries out rotary scanning, it is thus achieved that the temperature information in sweep limits, according to temperature information
Obtain heat source temperature curve.
Specifically, can arrange infrared sensor and rotating mechanism on air-conditioning, the controller of air-conditioning controls rotating machine
Structure drives infrared sensor to rotate in bigger angular range.The infrared sensor rotated is to the region in the range of scanning angle
It is scanned, the temperature information of Real-time Collection scanning area.The reflection of this temperature information is sweeping of currently gathering of infrared sensor
The radiant intensity of object in the range of retouching, radiant intensity is the strongest, then it represents that the temperature value that infrared sensor gathers is the highest.Therefore, exist
In the scanning process of infrared sensor, before scanning thermal source, arrive the process after scanning thermal source, infrared sensing again to source center
The temperature value of device sampling is to arrive a low process the most again, and this is the process scanning a thermal source.Air-conditioning receives red
The temperature information of outer sensor sampling, the analysis of the i.e. radiant intensity of temperature information by gathering infrared sensor generates indoor
The temperature curve of thermal source.
Infrared sensor is driven to rotate, so having only to single-point infrared sensor can realize whole sky by rotational structure
Between the temperature scanning of scope, it is not necessary to array infrared sensor, data process relatively simple, expend the time short.
Then, according to heat source temperature curve determine between thermal source and thermal source and the air-conditioning that air-conditioning place is indoor real-time away from
From.
Specifically, air-conditioner by the crest value in analysis temperature curve, the radiant intensity of crest value correspondence thermal source, according to
Crest value may determine that the number of thermal source in current environment, and wherein, the coordinate figure of crest value is the coordinate figure i.e. position of thermal source.
And, the temperature value of infrared sensor sampling has relation with the distance of object, when object distance air-conditioning is the most remote, and infrared sensing
The temperature value that device gathers is the lowest, otherwise, closer to object true temperature value.Specifically, can according to temperature in temperature curve
Difference between high level and minimum determines the distance between thermal source and air-conditioner, according to scan period mid-infrared sensor acquisition
The maximum of temperature value and the difference of minima can interpolate that the thermal source of Current Scan and the relative distance of background, difference is more
Little, illustrate that thermal source is close with background, i.e. thermal source is with air-conditioning farther out.
Step 12: calculate real-time indoor environment temperature and the temperature difference set between indoor objects temperature, as the most indoor
The temperature difference, carries out room temperature PID computing according to the most indoor temperature difference, it is thus achieved that first frequency.
Master control borad, after getting real-time indoor environment temperature and setting indoor objects temperature, calculates temperature between the two
Difference, as the most indoor temperature difference.Then, room temperature PID computing is carried out according to the most indoor temperature difference, it is thus achieved that compressor is controlled
A frequency, and this frequency is defined as first frequency.Wherein, carry out room temperature PID computing according to the temperature difference, obtain compressor
The concrete grammar of the target frequency being controlled can use prior art to realize, and is not elaborated at this and limits.
Step 13: judge that whether distance is less than setpoint distance in real time.If so, step 15 is performed；If it has not, execution step
14。
This step can be carried out with step 12 simultaneously, is divided into two steps at this merely to clearly state this reality
Execute the control process of example.Get distance in real time in step 11 afterwards, real-time distance to be made comparisons with setpoint distance, and judge reality
Time distance whether less than setpoint distance, in order to perform step 14 or the control of step 15 according to comparative result.Wherein, setpoint distance
A default setting temperature of air-conditioning when can be to dispatch from the factory, it is also possible to be selected voluntarily by user and a setting arranging away from
From.If by user's sets itself, air-conditioning can provide a reference value, for reference.Such as, it is proposed that this distance is set
It is set to 3m.
Step 14: if step 13 judges that real-time distance not less than setpoint distance, then performs the first following control: select
First frequency controls the compressor operating of air-conditioning.
If distance is not less than setpoint distance in real time, show that now thermal source distance air-conditioning is farther out, for ensureing the system at thermal source
Cold effect, needs air outlet temperature relatively low, to send enough cooling airs at thermal source.In the case of this, room is passed through in selection
The first frequency that temperature PID calculates, as target frequency, controls the compressor operating of air-conditioning.Further, in the case of this, due to heat
From air-conditioning farther out, even if air outlet temperature is low, the wind sent blows at thermal source through a segment distance spacing, will not be the coolest and affect
User's comfortableness.
Step 15: if step 13 judges that real-time distance less than setpoint distance, then performs the second following control: obtain sky
Adjust the real-time coil temperature of vaporizer, determine with in real time apart from right according to known distance and the corresponding relation of coil pipe target temperature
The coil pipe target temperature answered, as real-time coil pipe target temperature, calculates between real-time coil temperature and setting coil pipe target temperature
The temperature difference, as the real-time coil pipe temperature difference, carries out dish temperature PID arithmetic according to the real-time coil pipe temperature difference, it is thus achieved that second frequency, selects the first frequency
Smaller value in rate and second frequency, as target frequency, controls the compressor operating of air-conditioning according to target frequency.
If step 13 judge real-time distance less than setpoint distance, for avoiding the too fast decline of temperature to cause body-sensing uncomfortable,
Consider evaporator coil temperature further, in order to adjust compressor operating frequency in time so that evaporator coil temperature can be steady
Surely arrive coil pipe target temperature, to adjust air conditioning exhausting temperature, reach cool and the coldest comfortable air-out effect.
Specifically, first, the real-time coil temperature of A/C evaporator is obtained, and according to known distance and coil pipe target
The corresponding relation of temperature determines that the coil pipe target temperature corresponding with distance in real time is as real-time coil pipe target temperature；Then, calculate
The temperature difference between coil temperature and real-time coil pipe target temperature, as the real-time coil pipe temperature difference, enters according to the real-time coil pipe temperature difference in real time
Row dish temperature PID arithmetic, it is thus achieved that second frequency；Finally, first frequency and this second frequency obtained according to room temperature PID computing is selected
In smaller value as target frequency, control compressor of air conditioner according to target frequency and run.
Wherein, the detection of evaporator coil temperature can detect by arranging coil temperature sensor on an evaporator.
And the method that dish temperature PID arithmetic obtains the target frequency being controlled compressor is referred to room temperature PID of the prior art
Computing and the method that obtains compressor target frequency.Wherein, the original frequency of dish temperature PID arithmetic can be the initial of a setting
Frequency.Preferably, the original frequency of dish temperature PID arithmetic is for judging that real-time distance is less than setpoint distance, entrance the second control process
Time compressor current operation frequency.And, this current operation frequency is at least at compressor operating a period of time (such as 3min)
A running frequency afterwards.Coil pipe target temperature is not changeless temperature, but with thermal source and the distance of air conditioning room
A corresponding variable temperature.Specifically, the memorizer of air-conditioning master control borad is previously stored with distance and coil pipe target
The corresponding relation of temperature, wherein, distance refers to that the distance between indoor airflow and air-conditioning, coil pipe target temperature are expectation vaporizers
The temperature that coil temperature is to be reached.For different distances, to there being coil pipe target that is incomplete same or that differ completely
Temperature, and distance is the least, coil pipe target temperature is the biggest, it is therefore an objective to provide for the thermal source at different distance and more suitably go out pathogenic wind-warm
Degree, it is ensured that the comfortableness of air-out.And, by the change of coil pipe target temperature, additionally aid by reducing compressor operating frequency
Rate reduces operation of air conditioner energy consumption.Preferably, distance is to be referred in theory by research staff with the corresponding relation of coil pipe target temperature
Lead down, obtained by substantial amounts of operation of air conditioner simulation experiment, it is possible to take into account air-conditioning comfortableness as far as possible.Therefore, exist
Obtaining distance in real time and afterwards, first find real-time distance from distance with the corresponding relation of coil pipe target temperature, then obtaining should
In real time apart from corresponding coil pipe target temperature, and using this coil pipe target temperature as real-time coil pipe target temperature.
Said method is used to realize air conditioner refrigerating control, by comparing distance and the setpoint distance in real time of thermal source distance air-conditioning
Size, when real-time distance is not less than setpoint distance, do not consider dish temperature PID control and only with room temperature PID control compressor
Run, thus room is lowered the temperature rapidly, it is to avoid the problem of poor refrigerating efficiency, and at distance no more than setpoint distance in real time
Time, it is considered to dish temperature PID controls so that air conditioning exhausting temperature pleasant, reaches cool and the coldest comfortable cooling effect.And,
During dish temperature PID controls, dish temperature target temperature, according to thermal source and the distance accommodation in real time of air conditioning room, carries further
The high comfortableness of leaving air temp, it helps reduce operation of air conditioner energy consumption.
And, during performing the second control, detection thermal source and the real-time distance of air conditioning room the most in real time,
And compare the size of real-time distance and setpoint distance.Once distance not less than setpoint distance, then exits the mistake of the second control in real time
Journey, and perform the process of the first control, so that indoor temperature is stable is setting indoor objects temperature.
As preferred embodiment, during performing the second control, real-time distance not less than setpoint distance and
Distance and the difference of setpoint distance are more than when setting difference in real time, exit the second control, perform the first control.
Referring to Fig. 2, this figure show air conditioner refrigerating of the present invention and controls the structured flowchart of one embodiment of device.
As in figure 2 it is shown, the construction unit that comprised of the refrigeration control device of this embodiment and function thereof are as follows:
Indoor environment temperature acquiring unit 201, is used for obtaining real-time indoor environment temperature.
Room temperature PID arithmetic element 202, for calculating the real-time indoor environment that indoor environment temperature acquiring unit 201 obtains
Temperature and the temperature difference set between indoor objects temperature, as the most indoor temperature difference, carry out PID fortune according to the most indoor temperature difference
Calculate, it is thus achieved that and export first frequency.
Coil temperature acquiring unit 203, for obtaining the real-time coil temperature of A/C evaporator.
Thermal source determines and distance acquiring unit 204, the thermal source indoor in real time detection air-conditioning place and determine thermal source with
Real-time distance between air-conditioning.
Coil pipe target temperature acquiring unit 205 in real time, for closing according to known distance is corresponding with coil pipe target temperature
System obtains the coil pipe target temperature corresponding with distance in real time, and as real-time coil pipe target temperature.
Dish temperature PID arithmetic unit 206, for calculating real-time coil temperature and the reality that coil pipe temperature acquiring unit 203 obtains
Time coil pipe target temperature acquiring unit 205 obtain real-time coil pipe target temperature between the temperature difference, as the real-time coil pipe temperature difference, root
Time factually, the coil pipe temperature difference carries out PID arithmetic, it is thus achieved that and export second frequency.
Control model select unit 207, for compare thermal source determine and distance acquiring unit 204 obtain real-time distance with
The size of setpoint distance, and export comparative result and select signal as control model.
First control unit 208, for selecting the comparative result of unit 207 output to be that distance is the least in real time in control model
When setpoint distance, the first frequency of room temperature PID arithmetic element 202 output is selected to control the compressor operating of air-conditioning.
Second control unit 209, is that real-time distance is less than for selecting the comparative result of unit 207 output in control model
During setpoint distance, select the first frequency and the second of the output of dish temperature PID arithmetic unit 206 of room temperature PID arithmetic element 202 output
Smaller value in frequency controls the compressor operating of air-conditioning.
Thermal source determines and distance acquiring unit 204 can use and can detect thermal source in prior art and determine the knot of distance
Structure realizes.As preferred embodiment, thermal source determines and distance acquiring unit 204 uses following structure to realize:
Including:
Infrared sensor, is arranged in air-conditioning；
Rotating mechanism, is used for driving infrared sensor to rotate；
Thermal source determines and distance obtains subelement, for obtaining the temperature information in infrared sensor sweep limits, according to temperature
Information acquisition heat source temperature curve, determines between thermal source and thermal source and the air-conditioning that air-conditioning place is indoor according to heat source temperature curve
Distance in real time.
Each construction unit in said apparatus runs corresponding software program, and according to the flow performing air conditioner refrigerating of Fig. 1
Control, it is achieved the comfortable control of refrigeration of air-conditioning.
Above example is only in order to illustrate technical scheme, rather than is limited；Although with reference to aforementioned reality
Execute example the present invention has been described in detail, for the person of ordinary skill of the art, still can be to aforementioned enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these are revised or replace
Change, do not make the essence of appropriate technical solution depart from the spirit and scope of claimed technical solution of the invention.
Claims (7)
1. an air conditioner refrigerating control method, it is characterised in that described method includes:
Operation of air conditioner, obtains real-time indoor environment temperature and sets indoor objects temperature, calculating described real-time indoor environment temperature
And the temperature difference between described target setting temperature, as the real-time temperature difference, carries out room temperature PID computing according to the described real-time temperature difference, obtains
Obtain first frequency；Detect the indoor thermal source in air-conditioning place in real time and determine the real-time distance between described thermal source and air-conditioning, by institute
State real-time distance to make comparisons with setpoint distance；
If described real-time distance is not less than described setpoint distance, performs following first and control:
Control compressor of air conditioner according to described first frequency to run；
If described real-time distance is less than described setpoint distance, performs following second and control:
Obtain the real-time coil temperature of A/C evaporator, determine according to the corresponding relation of known distance Yu coil pipe target temperature and
The coil pipe target temperature of described real-time distance correspondence, as real-time coil pipe target temperature, calculates described real-time coil temperature with described
The temperature difference between coil pipe target temperature in real time, as the real-time coil pipe temperature difference, carries out dish temperature PID fortune according to the described real-time coil pipe temperature difference
Calculate, it is thus achieved that second frequency, select the smaller value in described first frequency and described second frequency to control compressor of air conditioner and run.
Method the most according to claim 1, it is characterised in that thermal source that described detection air-conditioning place is indoor also determines described
Real-time distance between thermal source and air-conditioning, specifically includes:
The infrared sensor controlled in air-conditioning carries out rotary scanning, it is thus achieved that the temperature information in sweep limits, according to described temperature
Information acquisition heat source temperature curve；
The real-time distance between thermal source and described thermal source and the air-conditioning that air-conditioning place is indoor is determined according to described heat source temperature curve.
Method the most according to claim 1, it is characterised in that during performing described second control, continue to obtain
Described real-time distance is also made comparisons with described setpoint distance, when described real-time distance is not less than described setpoint distance, exits institute
State the second control, perform described first and control.
Refrigeration control method the most according to claim 3, it is characterised in that during performing described second control,
Continue to obtain described real-time distance also to make comparisons with described setpoint distance, described real-time distance not less than described setpoint distance,
And the difference of described real-time distance and described setpoint distance is more than when setting difference, exits described second and controls, performs described first
Control.
Method the most according to any one of claim 1 to 4, it is characterised in that when performing described second and controlling, obtain
The current operation frequency of described compressor, using described current operation frequency as the original frequency of described dish temperature PID arithmetic, and root
Described dish temperature PID arithmetic is carried out according to the described real-time coil pipe temperature difference.
6. an air conditioner refrigerating controls device, it is characterised in that described device includes:
Indoor environment temperature acquiring unit, is used 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 described real-time indoor environment temperature and the temperature difference set between indoor objects temperature,
As the most indoor temperature difference, carry out PID arithmetic according to the described real-time indoor temperature difference, it is thus achieved that and export first frequency；
Thermal source determines and distance acquiring unit, and the thermal source indoor for detection air-conditioning place in real time also determines described thermal source and air-conditioning
Between real-time distance；
In real time coil pipe target temperature acquiring unit, for according to the corresponding relation of known distance with coil pipe target temperature obtain with
The coil pipe target temperature that described real-time distance is corresponding, and as real-time coil pipe target temperature；
Dish temperature PID arithmetic unit, for calculating the temperature difference between described real-time coil temperature and real-time coil pipe target temperature, as
The coil pipe temperature difference, carries out PID arithmetic according to the described real-time coil pipe temperature difference in real time, it is thus achieved that and export second frequency；
Control model selects unit, for the size of relatively described real-time distance with setpoint distance, and exports comparative result conduct
Control model selects signal；
First control unit, is that described real-time distance is not less than for selecting the comparative result of unit output in described control model
During described setpoint distance, described first frequency is selected to control the compressor operating of air-conditioning；
Second control unit, for selecting the comparative result of unit output to be that described real-time distance is less than institute in described control model
When stating setpoint distance, the smaller value in described first frequency and described second frequency is selected to control the compressor operating of air-conditioning.
Device the most according to claim 6, it is characterised in that described thermal source determines and distance acquiring unit includes:
Infrared sensor, is arranged in air-conditioning；
Rotating mechanism, is used for driving described infrared sensor to rotate；
Thermal source determines and distance obtains subelement, for obtaining the temperature information in described infrared sensor sweep limits, according to
Described temperature information obtains heat source temperature curve, determines the indoor thermal source in air-conditioning place and described according to described heat source temperature curve
Real-time distance between thermal source and air-conditioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610354089.0A CN106052011B (en) | 2016-05-25 | 2016-05-25 | Air conditioner refrigerating control method and control device |
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| CN201610354089.0A CN106052011B (en) | 2016-05-25 | 2016-05-25 | Air conditioner refrigerating control method and control device |
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| CN109373534A (en) * | 2018-10-26 | 2019-02-22 | 广东美的制冷设备有限公司 | Air conditioner and its control method, device and computer readable storage medium |
| CN109405227A (en) * | 2018-10-26 | 2019-03-01 | 美的集团武汉制冷设备有限公司 | Air conditioner and its control method, device and computer readable storage medium |
| CN109405196A (en) * | 2018-10-26 | 2019-03-01 | 广东美的制冷设备有限公司 | Air conditioner and its control method, device and computer readable storage medium |
| CN112361555A (en) * | 2020-11-09 | 2021-02-12 | 珠海格力电器股份有限公司 | Air conditioner control method and device, electronic equipment and storage medium |
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