CN106642549A - Method and device for achieving refrigeration control of air conditioner based on distance - Google Patents
Method and device for achieving refrigeration control of air conditioner based on distance Download PDFInfo
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- CN106642549A CN106642549A CN201611087736.2A CN201611087736A CN106642549A CN 106642549 A CN106642549 A CN 106642549A CN 201611087736 A CN201611087736 A CN 201611087736A CN 106642549 A CN106642549 A CN 106642549A
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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
- F24F11/30—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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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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Abstract
The invention discloses a method and device for achieving refrigeration control of an air conditioner based on a distance. The method comprises the steps that the air conditioner performs refrigeration operation and performs room temperature PID operation to obtain first frequency; a real-time distance between an indoor heat source and the air conditioner is determined, real-time air speed corresponding to the real-time distance and the frequency corresponding to the real-time air speed are determined, and the frequency serves as second frequency; according to the difference of real-time coil temperature and target coil temperature, coil temperature PID operation is performed to obtain third frequency; the target coil temperature is determined according to the indoor target temperature, and it is achieved that the target coil temperature is low when the indoor target temperature is low; if the indoor target temperature is not lower than set suitable temperature, a smaller value in the first frequency and the second frequency is selected as target frequency; if the temperature is lower than the set suitable temperature, a smaller value in the first frequency, the second frequency and the third frequency is selected as target frequency. By applying the method and the device, energy saving and comfort control of the air conditioner can be achieved.
Description
Technical field
The invention belongs to air-conditioning technique field, is the air-conditioning for being related to adjust room air, more specifically specifically
Say, be to be related to realize the method and apparatus that air conditioner refrigerating is controlled based on distance.
Background technology
Air-conditioning summer can freeze, winter can heat, and can adjust indoor temperature and reach cool in summer and warm in winter, provide the user comfortable
Environment.While air-conditioning provides the user comfortableness, incident is the contradiction with high energy consumption.Energy ezpenditure not only increases
Add user's financial burden, it is also opposite with the trend of energy-conserving and environment-protective.Therefore, how a home from home is being provided the user using air-conditioning
While reduce air-conditioning energy consumption, be current air-conditioner producer have been working hard solve problem.
Cause uncomfortable problem to solve refrigeration blowing cold air, the coil temperature that can be based on indoor heat exchanger is made
The control method of compressor operating frequency is controlled for control targe.In existing coil temperature control process, coil pipe target temperature
Adopt fixed value, a temperature fixed value being generally solidificated in accumulator for air conditioner.In actual use, often
There is a phenomenon：In the case of the indoor target temperature difference of user's setting, the close indoor target temperature of temperature indoors
When, user feels on the contrary uncomfortable.Jing is analyzed, based on room when this phenomenon is user's design temperature close due to temperature indoors
The coil temperature of interior heat exchanger controls compressor operating frequency as control targe and coil pipe target temperature is drawn by fixed value
Rise.
Because the coil temperature of heat exchanger is to concern the key parameter that air conditioner coolant system and integrated air are adjusted, if control
System is improper, may bring air adjustment degradation, reduce the problem of comfortableness.Therefore, how to be carried out based on coil temperature
Rationally, comfortable and Energy Saving Control, is the problem urgently studied and solve.
The content of the invention
It is an object of the invention to provide a kind of realize the method and apparatus that air conditioner refrigerating is controlled based on distance, air-conditioning is realized
Energy-conservation, comfortable control.
For achieving the above object, what the present invention was provided realizes that the method that air conditioner refrigerating is controlled adopts following based on distance
Technical scheme is achieved：
A kind of to realize the method that air conditioner refrigerating is controlled based on distance, methods described includes：
Air conditioner refrigerating runs, and 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, enters according to the real-time indoor temperature difference
Row room temperature PID computing, obtains first frequency；Real-time detection air-conditioning thermal source indoors and determine between the thermal source and air-conditioning
Real-time range, wind speed corresponding with the real-time range is determined and as real according to known distance and the corresponding relation of wind speed
When wind speed, frequency corresponding with the real-time wind speed is obtained according to known wind speed and the corresponding relation of frequency, as the second frequency
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 controls are performed：Select described
Smaller value in first frequency and the second frequency controls the compressor operating of air-conditioning；
If the real-time indoor environment temperature is less than the setting comfort temperature, the second following controls are performed：Obtain air-conditioning to steam
The real-time coil temperature and coil pipe target temperature of device are sent out, is calculated between the real-time coil temperature and the coil pipe target temperature
The temperature difference, as the real-time coil pipe temperature difference, according to the real-time coil pipe temperature difference disk temperature PID arithmetic is carried out, and obtains the 3rd frequency, selects institute
State the compressor operating that the smaller value in first frequency, the second frequency and the 3rd frequency controls air-conditioning；The coil pipe
Target temperature determines according to the indoor target temperature, and meets the indoor target temperature hour coil pipe target temperature
It is little.
To realize aforementioned invention purpose, what the present invention was provided realizes that the device that air conditioner refrigerating is controlled adopts following based on distance
Technical scheme is achieved：
A kind of to realize the device that air conditioner refrigerating is controlled based on distance, 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 temperature difference between the real-time indoor environment temperature and setting indoor target temperature,
As the real-time indoor temperature difference, PID arithmetic is carried out according to the real-time indoor temperature difference, obtain and export first frequency；
Disk temperature PID arithmetic unit, for calculating the temperature difference between the real-time coil temperature and coil pipe target temperature, as real-time
The coil pipe temperature difference, according to the real-time coil pipe temperature difference PID arithmetic is carried out, and obtains and export the 3rd frequency；The coil pipe target temperature
Determined according to the indoor target temperature, and it is little to meet the indoor target temperature hour coil pipe target temperature；
Thermal source determines and distance acquiring unit, for real-time detection air-conditioning thermal source indoors and determine the thermal source and air-conditioning
Between real-time range；
Real-time wind speed acquiring unit, for obtaining corresponding with the real-time range according to known distance and the corresponding relation of wind speed
Wind speed, and as real-time wind speed；
Second frequency acquiring unit, for obtaining corresponding with the real-time wind speed according to known wind speed and the corresponding relation of frequency
Frequency, as second frequency；
Control model select unit, for relatively more described real-time indoor environment temperature and setting comfort temperature, and knot is compared in output
Fruit is used as control model selection signal；
First control unit, the comparative result for exporting in the control model select unit is the real-time indoor environment temperature
When degree is not less than the setting comfort temperature, the first frequency is selected to control air-conditioning with the smaller value in the second frequency
Compressor operating；
Second control unit, the comparative result for exporting in the control model select unit is the real-time indoor environment temperature
When degree is less than the setting comfort temperature, select less in the first frequency, the second frequency and the 3rd frequency
The compressor operating of value control air-conditioning.
Compared with prior art, advantages of the present invention and good effect are：
In the present invention, when FREQUENCY CONTROL is carried out to compressor, the cooperation between temperature factor and wind speed factor has been considered, made
The heat that the air-flow of blower fan operating driving is formed during the heat exchange amount produced by refrigerant being driven when obtaining compressor operating and being somebody's turn to do is handed over
The amount of changing matches, it is to avoid press frequency is too high or rotation speed of fan it is too high produced by meaningless energy consumption, realize the energy-conservation fortune of air-conditioning
OK.And, wind speed is controlled according to thermal source with the distance of air conditioning room, improves the comfort level of user, and can be in low wind speeds
Reduce noise.Additionally, in for control of the temperature factor to compressor frequency, according to indoor environment temperature and setting comfort temperature
Size, select using room temperature PID control or using based on evaporator coil temperature disk temperature PID control, can room temperature height
When in time, quickly room is lowered the temperature, reach refrigeration purpose, can make by coil temperature stably in coil pipe target temperature again
Have leisure and recall air temperature comfortably, reach cool and not cold comfortable cooling effect.Also, the disk during disk temperature PID control
Pipe target temperature determines that indoor target temperature hour coil pipe target temperature is also little so that coil pipe mesh according to indoor target temperature
Mark temperature is consistent with indoor target temperature, drops when disk temperature PID control is performed in the case that target temperature requirement indoors is low
Warm speed is fast, is rapidly achieved the balance of required indoor low temperature, further improves user's comfortableness.
After the specific embodiment of the present invention is read in conjunction with the accompanying, the other features and advantages of the invention will become more clear
Chu.
Description of the drawings
Fig. 1 is the flow chart that the present invention realizes method one embodiment that air conditioner refrigerating is controlled based on distance；
Fig. 2 is the structured flowchart that the present invention realizes device one embodiment that air conditioner refrigerating is controlled based on distance.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below with reference to drawings and Examples,
The present invention is described in further detail.
Fig. 1 is referred to, the figure show the present invention and realizes method one embodiment that air conditioner refrigerating is controlled based on distance
Flow chart.
As shown in figure 1, the embodiment realizes that the method that air conditioner refrigerating is controlled adopts the stream with following step based on distance
Journey is realizing：
Step 11：Air conditioner refrigerating runs, and obtains real-time indoor environment temperature, setting indoor target temperature, meanwhile, real-time detection is empty
Adjust thermal source indoors and determine the real-time range of thermal source and air conditioning room.
Specifically, when air-conditioning start runs, the indoor environment temperature in room, real-time detection residing for real-time detection air-conditioning
Temperature as real-time indoor environment temperature.So-called real-time indoor environment temperature, refers to after air-conditioning start operation, according to setting
The indoor environment temperature that constant temperature degree sample frequency is constantly obtained and updated.The acquisition of indoor environment temperature in real time can adopt existing
Technology is realizing.For example, the temperature sensor by being arranged on air-conditioning air inlet or near air-conditioning air inlet is detected into wind-warm syndrome
Degree, the master control borad of air-conditioning passes through the output signal of collecting temperature sensor and is processed, so as to get EAT, and will
The temperature is used as real-time indoor environment temperature.
Setting indoor target temperature is referred to wishes the indoor environment target temperature to be reached, the setting indoor target temperature
A temperature value, or air-conditioning master that can be user be input into by remote control or control terminal for air conditioner or air-conditioning panel
The setting value that control plate is called automatically.No matter the temperature value is set using which kind of mode, can be got by air-conditioning master control borad.
After air-conditioning start operation, except the real-time indoor environment temperature in room residing for real-time detection air-conditioning, also to examine in real time
Survey air-conditioning thermal source indoors, and determine the real-time range of thermal source and air conditioning room.So-called real-time range, is being opened in air-conditioning
After machine operation, the distance between the indoor airflow for constantly obtaining and updating according to setting sample frequency and air-conditioning.The detection of thermal source
And thermal source can be realized with the determination of distance of air conditioning room using prior art.For example, by arranging infrared battle array on air-conditioning
Sensor or common infrared sensor, calculate with reference to certain algorithm.
As preferred embodiment, detect air-conditioning thermal source indoors and determine between thermal source and air-conditioning it is real-time away from
From, obtained using following technological means, specifically include：
Infrared sensor in control air-conditioning carries out rotary scanning, the temperature information in sweep limits is obtained, according to temperature information
Obtain heat source temperature curve.
Specifically, infrared sensor and rotating mechanism, the controller control rotating machine of air-conditioning can be set on air-conditioning
Structure drives infrared sensor to rotate in larger angular range.The infrared sensor of rotation is to the region in the range of scanning angle
It is scanned, the temperature information of Real-time Collection scanning area.The temperature information reflection is sweeping for infrared sensor currently collection
The radiation intensity of object in the range of retouching, radiation intensity is stronger, then it represents that the temperature value of infrared sensor collection is higher.Therefore, exist
In the scanning process of infrared sensor, scan to before thermal source to source center and arrive scanning again to the process after thermal source, infrared sensing
The temperature value of device sampling is to arrive a low process again from low to high, and this is process of the scanning to a thermal 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 gathered to infrared sensor
The temperature curve of thermal source.
Infrared sensor is driven to rotate by rotational structure, so only needing to single-point infrared sensor is capable of achieving whole sky
Between scope temperature scanning, it is not necessary to array infrared sensor, data processing is relatively simple, expend the time it is short.
Then, according to heat source temperature curve determine air-conditioning between thermal source indoors and thermal source and air-conditioning it is real-time away from
From.
Specifically, by the crest value in analysis temperature curve, crest value corresponds to the radiation intensity of thermal source to air-conditioner, according to
Crest value may determine that the number of thermal source in current environment, wherein, the coordinate value of crest value is the coordinate value i.e. position of thermal source.
And, temperature value and the distance of object of infrared sensor sampling have relation, when object distance air-conditioning is more remote, infrared sensing
The temperature value of device collection is lower, conversely, closer to object true temperature value.Specifically, can be according to temperature in temperature curve most
Difference between high level and minimum determines the distance between thermal source and air-conditioner, is gathered according to scan period mid-infrared sensor
The maximum of temperature value and the difference of minimum of a value can interpolate that the thermal source of Current Scan and the relative distance of background, difference is got over
It is little, illustrate that thermal source and background are close to, i.e., thermal source is with air-conditioning farther out.
Step 12：The temperature difference between real-time indoor environment temperature and setting indoor target temperature is calculated, as real-time interior
The temperature difference, according to the real-time indoor temperature difference room temperature PID computing is carried out, and obtains first frequency；It is corresponding with wind speed according to known distance
Relation determines wind speed corresponding with real-time range and as real-time wind speed, is obtained according to the corresponding relation of known wind speed and frequency
Frequency corresponding with real-time wind speed, as second frequency.
Master control borad calculates temperature between the two after real-time indoor environment temperature and setting indoor target temperature is got
Difference, as the real-time indoor temperature difference.Then, room temperature PID computing is carried out according to the real-time indoor temperature difference, acquisition is controlled to compressor
A frequency, and the frequency is defined as into first frequency.Wherein, carry out room temperature PID computing, obtain to compressor according to the temperature difference
The concrete grammar of the target frequency being controlled can realize that here is not elaborated and limits using prior art.
Meanwhile, wind speed corresponding with real-time range is obtained with the corresponding relation of wind speed always according to known distance, as reality
When wind speed.Specifically, the corresponding relation of distance and wind speed is previously stored with 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 that indoor unit fan of air conditioner operates.For it is different away from
From to there is wind speed that is incomplete same or differing completely, and distance is bigger, and wind speed is lower.Also, it is preferred that, distance with
The corresponding relation of wind speed is the energy by research staff under theoretical direction, obtained by substantial amounts of operation of air conditioner simulated experiment
It is enough to take into account air-conditioning comfortableness and energy saving as far as possible.Therefore, it is corresponding with wind speed from distance after real-time range is obtained
Real-time range is first found in relation, the wind speed corresponding to the real-time range is then obtained, and using the wind speed as real-time wind speed.
Then, frequency corresponding with real-time wind speed is obtained with the corresponding relation of frequency according to known wind speed, as second frequency.
Specifically, the corresponding relation of wind speed and frequency is also previously stored with the memory of air-conditioning master control borad, wherein,
Wind speed refers to the speed that indoor unit fan of air conditioner operates, and frequency refers to the running frequency of compressor.For different wind speed, correspondence
There are different frequencies.Also, it is preferred that, the corresponding relation of wind speed and frequency be by research staff under theoretical direction, Jing Guo great
Obtained by the operation of air conditioner simulated experiment of amount, air-conditioning comfortableness and energy saving can be as far as possible taken into account.Set up wind speed with
The starting point of the corresponding relation of frequency is：For air-conditioning system, if indoor machine fan rotating speed is certain, blower fan operating is driven
Dynamic air-flow is certain, that is, air quantity is certain；Air quantity is certain, its heat exchange formed with heat exchanger when indoor set 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, makes
Obtain indoor wind pushing temperature 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 because the air quantity produced under certain interior machine rotating speed is too small, heat exchanger heat exchange efficiency can be caused to decline, and the big work(of compressor
Rate operation wastes energy consumption.Therefore, it is necessary to and restriction corresponding with frequency work to wind speed.
Therefore, after real-time wind speed is obtained, real-time wind speed is first found from the corresponding relation of wind speed and frequency, then
The frequency corresponding to the real-time wind speed is obtained, and using the frequency as second frequency.
And, a wind speed may correspond to a frequency, it is also possible to the multiple frequencies of correspondence.If wind speed correspond to many
Individual frequency, a namely real-time wind speed is to there is multiple frequencies, in the case of this, selects peak frequency in multiple frequencies as the
Two frequencies.
Step 13：Judge real-time indoor environment temperature whether less than setting comfort temperature.If so, execution step 15；If
It is no, execution step 14.
The step can simultaneously be carried out with step 12, and here is divided into two steps 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 is relaxed with setting
Thermophilic degree is made comparisons, and whether judges real-time indoor environment temperature less than setting comfort temperature, to be performed according to comparative result
The control of step 14 or step 15.Wherein, the default setting temperature that comfort temperature can be air-conditioning when dispatching from the factory is set, also may be used
Being voluntarily to be selected by user and a design temperature arranging.If by user's sets itself, air-conditioning can provide one
Reference temperature value, it is for reference.For example, it is proposed that the comfort temperature is set as into 27 DEG C.
Step 14：If step 13 judges that real-time indoor environment temperature, not less than setting comfort temperature, is performed following
First control：Select first frequency and the smaller value in second frequency as target frequency, air-conditioning is controlled according to target frequency
Compressor operating.
If in real time indoor environment temperature shows that now indoor temperature is higher not less than setting comfort temperature, need quick
Cooling.In the case of this, first frequency and second frequency that comparison step 12 is obtained select the smaller value in both, as target
Frequency, according to target frequency the compressor operating of air-conditioning is controlled.
Step 15：If step 13 judges real-time indoor environment temperature less than setting comfort temperature, following the is performed
Two controls：The real-time coil temperature and setting coil pipe target temperature of A/C evaporator are obtained, real-time coil temperature and coil pipe is calculated
The temperature difference between target temperature, as the real-time coil pipe temperature difference, according to the real-time coil pipe temperature difference disk temperature PID arithmetic is carried out, and obtains the 3rd
Frequency, selects the smaller value in first frequency, second frequency and the 3rd frequency as target frequency, empty according to target frequency control
The compressor operating of tune.
If step 13 judges that indoor temperature is less than comfort temperature, to avoid the too fast decline of temperature from causing body-sensing uncomfortable,
Evaporator coil temperature is further considered, to adjust compressor operating frequency in time so that evaporator coil temperature can be steady
Surely coil pipe target temperature is arrived, to adjust air conditioning exhausting temperature, cool and not cold comfortable air-out effect is reached.
Specifically, first, the real-time coil temperature and coil pipe target temperature of A/C evaporator are obtained, real-time coil pipe is calculated
The temperature difference between temperature and coil pipe target temperature, as the real-time coil pipe temperature difference, according to the real-time coil pipe temperature difference disk temperature PID fortune is carried out
Calculate, obtain the 3rd frequency.
Wherein, the detection of evaporator coil temperature can be detected by arranging coil temperature sensor on an evaporator.
Real-time detection goes out after coil temperature, the temperature difference between real-time coil temperature and setting coil pipe target temperature is calculated, by the temperature difference
As the coil pipe temperature difference.Wherein, coil pipe target temperature determines according to indoor target temperature, and meets indoor target temperature hour coil pipe
Target temperature is also little.Then, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtains the target frequency being controlled to compressor,
And the target frequency is defined as into the 3rd target frequency.The target frequency that the acquisition of disk temperature PID arithmetic is controlled to compressor
The method that method may be referred to room temperature PID computing of the prior art and obtain compressor target frequency.Wherein, disk temperature PID fortune
The original frequency of calculation can be the original frequency of a setting.Preferably, the original frequency of disk temperature PID arithmetic judges for step 12
In real time indoor environment temperature is less than setting comfort temperature, into the current operation frequency of compressor during the second control process.And,
The current operation frequency is at least in compressor operating for a period of time（Such as 3min）A running frequency afterwards.
Then, the smaller value in first frequency, second frequency and the 3rd frequency is selected as target frequency, according to target frequency
Rate controls the compressor operating of air-conditioning.
Frequency of air condition compressor is controlled using said method, has been considered between temperature factor and wind speed factor
Coordinate so that during compressor operating drive refrigerant produced by heat exchange amount with should during blower fan operating driving air-flow formed
Heat exchange amount match, it is to avoid press frequency is too high or rotation speed of fan it is too high produced by meaningless energy consumption, realize air-conditioning
Energy-saving run.And, wind speed is controlled according to thermal source with the distance of air conditioning room, also improves the comfortableness of air-supply and relaxing for user
Appropriateness.Additionally, in for control of the temperature factor to compressor frequency, it is big with setting comfort temperature according to indoor environment temperature
It is little, select using room temperature PID control or using based on evaporator coil temperature disk temperature PID control, can when room temperature is high and
When, quickly room is lowered the temperature, reach refrigeration purpose, again can be stable in coil pipe target temperature by coil temperature so that empty
Recall air temperature comfortable, reach cool and not cold comfortable cooling effect.And, the coil pipe mesh during disk temperature PID control
Mark temperature determines that indoor target temperature hour coil pipe target temperature is also little so that coil pipe target temperature according to indoor target temperature
Degree is consistent with indoor target temperature, cooling speed when disk temperature PID control is performed in the case that target temperature requirement indoors is low
Degree is fast, is rapidly achieved the balance of required indoor low temperature, further improves user's comfortableness.
Used as preferred embodiment, coil pipe target temperature determines according to indoor target temperature, specifically includes：
Obtain indoor recommendation target temperature and coil pipe recommends target temperature；
The difference of indoor recommendation target temperature and indoor target temperature is calculated, as the first difference；
Second difference is obtained according to the differences of the second difference of formula=a* first；A is no more than 1 positive number；
The difference that coil pipe recommends target temperature and the second difference is calculated, result of calculation is defined as performing the actual disk of disk temperature PID arithmetic
Pipe target temperature.
Wherein, indoor recommendation target temperature be known, a temperature prestoring, be research staff Jing usually
It is that a large amount of theoretical researches and experiment test are obtained, take into account human body comfort and a temperature of air conditioner energy saving, be 27 for example
℃.The temperature that it is also known that coil pipe recommends target temperature, prestored, is that research staff Jing is theoretical in a large number usually
Research and experiment test obtained, indoors recommend target temperature as actual set indoor target temperature when can send
One coil temperature of the heat exchange air of proper temperature, is 14 DEG C for example.Certainly, the indoor recommendation target temperature and the disk
Pipe recommends target temperature to be changed by mandate, for example, is entered by special instruction in user family by personnel after sale
Row modification.A is also known, prestores as a coefficient according to first the second difference of mathematic interpolation, its value, is
What a large amount of theoretical researches of research staff Jing and experiment test were obtained.Preferably, a is the positive number less than 1, and for example, a values are
0.5.So, recommend target temperature to be 27 DEG C indoors, indoor recommendation coil pipe target temperature be 14 DEG C, in the case that a is 0.5,
If actual indoor target temperature is 26 DEG C, actual coil pipe target temperature is 13.5 DEG C；If indoor target temperature is 25 DEG C,
Then actual coil pipe target temperature is 13 DEG C.
Adopt with the aforedescribed process, when coil pipe target temperature is determined according to indoor target temperature, if indoor target temperature
Less than indoor recommendation target temperature, show that current desired indoor temperature is low, indoor recommendation target temperature and indoor objects temperature
The first difference between degree is negative value, is also negative value according to the first mathematic interpolation the second difference out；So, it is poor according to second
Value and coil pipe recommend the actual coil pipe target temperature that target temperature is calculated to recommend target temperature less than coil pipe.So,
When then performing disk temperature PID arithmetic according to actual coil pipe target temperature, because coil pipe target temperature is little, compressor operating frequency is big,
Cooling rate is fast, so that indoor temperature can rapidly reach required relatively low indoor temperature, meets to low
The comfortableness of the user of warm demand.And, indoor target temperature is lower, and the coil pipe target temperature for being obtained is also lower so that disk
The speed and cooling demand of warm PID control process is consistent with room temperature PID control, further increases the comfortableness of user.
And, during the second control is performed, real-time indoor environment temperature is still constantly obtained, and it is relatively more real-time
Indoor environment temperature and the size for setting comfort temperature.Once in real time indoor environment temperature is then moved back not less than setting comfort temperature
Go out the second control process, be transferred to the first control process, so that indoor temperature is stable in setting indoor target temperature.
As preferred embodiment, in real-time indoor environment temperature comfort temperature and in real time indoor environment temperature are not less than
When the difference of degree and setting comfort temperature is more than setting difference, then the second control process is exited, be transferred to the first control process.Pass through
Reasonable selection sets difference, for example, is set as 1 DEG C, it can be ensured that coil temperature is not less than coil pipe target temperature, it is ensured that go out cool
And not cold comfortableness.
As preferred embodiment, a setting highest frequency is previously stored with the memory of air-conditioning master control borad,
If step 14 judges that first frequency and the smaller value in second frequency judge first more than setting highest frequency, or step 15
Smaller value in frequency, second frequency and the 3rd frequency will then set highest frequency as target frequency more than setting highest frequency
Rate.That is, either according to which FREQUENCY CONTROL compressor, ensureing the running frequency of compressor less than setting highest
Frequency.
Fig. 2 is referred to, the present invention is the figure shows and device one embodiment that air conditioner refrigerating is controlled is realized based on distance
Structured flowchart.
As shown in Fig. 2 the construction unit that included of the air conditioner refrigerating control device of the embodiment and its function 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, as the real-time indoor temperature difference, according to the real-time indoor temperature difference PID fortune is carried out
Calculate, obtain and export first frequency.
Coil temperature acquiring unit 203, for obtaining the real-time coil temperature of A/C evaporator.
Disk temperature PID arithmetic unit 204, for calculating the real-time coil temperature and disk of the acquisition of coil temperature acquiring unit 203
The temperature difference between pipe target temperature, as the real-time coil pipe temperature difference, according to the real-time coil pipe temperature difference PID arithmetic is carried out, and is obtained and is exported
3rd frequency.Wherein, coil pipe target temperature determines according to indoor target temperature, and meets indoor target temperature hour coil pipe target
Temperature is little.
Thermal source determines and distance acquiring unit 205, for real-time detection air-conditioning institute's thermal source indoors and determine thermal source and
Real-time range between air-conditioning.
Real-time wind speed acquiring unit 206, for according to the acquisition of the corresponding relation of known distance and wind speed and real-time range
Corresponding wind speed, and as real-time wind speed.
Second frequency acquiring unit 207, for being obtained and real-time wind speed according to the corresponding relation of known wind speed and frequency
Corresponding frequency, as second frequency.
Control model select unit 208, for comparing the real-time indoor ring acquired in indoor environment temperature acquiring unit 201
Border temperature and setting comfort temperature, and comparative result is exported as control model selection signal.
First control unit 209, the comparative result for exporting in control model select unit 208 is real-time indoor environment
When temperature is not less than setting comfort temperature, the first frequency and second frequency for selecting the output of room temperature PID arithmetic element 202 obtains single
Smaller value in the second frequency of the output of unit 207 controls the compressor operating of air-conditioning as target frequency according to target frequency.
Second control unit 210, the comparative result for exporting in control model select unit 208 is real-time indoor environment
When temperature is less than setting comfort temperature, first frequency, the second frequency acquiring unit of the output of room temperature PID arithmetic element 202 are selected
Smaller value in the second frequency of 207 outputs and the 3rd frequency of the output of disk temperature PID arithmetic unit 204 is used as target frequency, root
The compressor operating of air-conditioning is controlled according to target frequency.
Used as preferred embodiment, refrigeration control device can also include：
Indoor recommendation target temperature acquiring unit, for obtaining indoor recommendation target temperature；
Coil pipe recommends target temperature acquiring unit, and for obtaining coil pipe target temperature is recommended；
First difference computational unit, it is poor as first with the difference of indoor target temperature for calculating indoor recommendation target temperature
Value；
Second difference computational unit, for obtaining the second difference according to the differences of the second difference of formula=a* first；A is no more than 1
Positive number；
Coil pipe target temperature determining unit, for calculating the difference that coil pipe recommends target temperature and the second difference, result of calculation determines
To perform the actual coil pipe target temperature of disk temperature PID arithmetic and exporting to disk temperature PID arithmetic unit.
Thermal source determines and distance acquiring unit 205 using detecting thermal source in prior art and can determine the knot of distance
Structure is realizing.Used as preferred embodiment, thermal source determines and distance acquiring unit 205 is realized using following structures：
Including：
Infrared sensor, in being arranged on air-conditioning；
Rotating mechanism, 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, according to heat source temperature curve determine air-conditioning between thermal source indoors and thermal source and air-conditioning
Real-time range.
Each construction unit in said apparatus runs corresponding software program, and the flow process according to preceding method performs air-conditioning
Refrigeration control, the energy-conservation for realizing air-conditioning is comfortably controlled.
Above example is only illustrating technical scheme, rather than is limited；Although with reference to aforementioned reality
Apply example to be described in detail the present invention, for the person of ordinary skill of the art, still can be to aforementioned enforcement
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these are changed or replace
Change, do not make the spirit and scope of the essence disengaging claimed technical solution of the invention of appropriate technical solution.
Claims (10)
1. it is a kind of that the method that air conditioner refrigerating is controlled is realized based on distance, it is characterised in that methods described includes：
Air conditioner refrigerating runs, and 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, enters according to the real-time indoor temperature difference
Row room temperature PID computing, obtains first frequency；Real-time detection air-conditioning thermal source indoors and determine between the thermal source and air-conditioning
Real-time range, wind speed corresponding with the real-time range is determined and as real according to known distance and the corresponding relation of wind speed
When wind speed, frequency corresponding with the real-time wind speed is obtained according to known wind speed and the corresponding relation of frequency, as the second frequency
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 controls are performed：Select described
Smaller value in first frequency and the second frequency controls the compressor operating of air-conditioning；
If the real-time indoor environment temperature is less than the setting comfort temperature, the second following controls are performed：Obtain air-conditioning to steam
The real-time coil temperature and coil pipe target temperature of device are sent out, is calculated between the real-time coil temperature and the coil pipe target temperature
The temperature difference, as the real-time coil pipe temperature difference, according to the real-time coil pipe temperature difference disk temperature PID arithmetic is carried out, and obtains the 3rd frequency, selects institute
State the compressor operating that the smaller value in first frequency, the second frequency and the 3rd frequency controls air-conditioning；The coil pipe
Target temperature determines according to the indoor target temperature, and meets the indoor target temperature hour coil pipe target temperature
It is little.
2. method according to claim 1, it is characterised in that the coil pipe target temperature is according to the indoor target temperature
It is determined that, specifically include：
Obtain indoor recommendation target temperature and coil pipe recommends target temperature；
The difference of the indoor recommendation target temperature and the indoor target temperature is calculated, as the first difference；
Second difference is obtained according to the differences of the second difference of formula=a* first；A is no more than 1 positive number；
The difference that the coil pipe recommends target temperature and second difference is calculated, result of calculation is defined as performing disk temperature PID
The actual coil pipe target temperature of computing.
3. the method according to right 1 or 2, it is characterised in that the detection air-conditioning thermal source indoors and determine described
Real-time range between thermal source and air-conditioning, specifically includes：
Infrared sensor in control air-conditioning carries out rotary scanning, the temperature information in sweep limits is obtained, according to the temperature
Information acquisition heat source temperature curve；
According to the heat source temperature curve determine air-conditioning thermal source indoors and the real-time range between the thermal source and air-conditioning.
4. method according to claim 1 and 2, it is characterised in that in the wind speed and the corresponding relation of frequency, a wind
Speed correspond to multiple frequencies, and the second frequency is the corresponding peak frequency of the real-time wind speed.
5. method according to claim 1 and 2, it is characterised in that if in the first frequency and the second frequency
Smaller value in smaller value or the first frequency, the second frequency and the 3rd frequency is more than setting highest frequency,
Then the setting highest frequency is controlled into the compressor operating of air-conditioning as the target frequency according to the target frequency.
6. method according to claim 1 and 2, it is characterised in that during second control is performed, continue to obtain
Take the real-time indoor environment temperature and the real-time indoor environment temperature is made comparisons with the setting comfort temperature, described
When in real time indoor environment temperature is not less than the setting comfort temperature, the second described control is exited, perform first control.
7. method according to claim 6, it is characterised in that during second control is performed, continue to obtain
The real-time indoor environment temperature simultaneously makes comparisons the real-time indoor environment temperature with the setting comfort temperature, in the reality
When indoor environment temperature not less than the setting comfort temperature and real-time indoor environment temperature and the setting comfort temperature
Difference more than setting difference when, exit the second described control, perform first control.
8. it is a kind of that the device that air conditioner refrigerating is controlled is realized based on distance, it is characterised 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 temperature difference between the real-time indoor environment temperature and setting indoor target temperature,
As the real-time indoor temperature difference, PID arithmetic is carried out according to the real-time indoor temperature difference, obtain and export first frequency；
Disk temperature PID arithmetic unit, for calculating the temperature difference between the real-time coil temperature and coil pipe target temperature, as real-time
The coil pipe temperature difference, according to the real-time coil pipe temperature difference PID arithmetic is carried out, and obtains and export the 3rd frequency；The coil pipe target temperature
Determined according to the indoor target temperature, and it is little to meet the indoor target temperature hour coil pipe target temperature；
Thermal source determines and distance acquiring unit, for real-time detection air-conditioning thermal source indoors and determine the thermal source and air-conditioning
Between real-time range；
Real-time wind speed acquiring unit, for obtaining corresponding with the real-time range according to known distance and the corresponding relation of wind speed
Wind speed, and as real-time wind speed；
Second frequency acquiring unit, for obtaining corresponding with the real-time wind speed according to known wind speed and the corresponding relation of frequency
Frequency, as second frequency；
Control model select unit, for relatively more described real-time indoor environment temperature and setting comfort temperature, and knot is compared in output
Fruit is used as control model selection signal；
First control unit, the comparative result for exporting in the control model select unit is the real-time indoor environment temperature
When degree is not less than the setting comfort temperature, the first frequency is selected to control air-conditioning with the smaller value in the second frequency
Compressor operating；
Second control unit, the comparative result for exporting in the control model select unit is the real-time indoor environment temperature
When degree is less than the setting comfort temperature, select less in the first frequency, the second frequency and the 3rd frequency
The compressor operating of value control air-conditioning.
9. device according to claim 8, it is characterised in that described device also includes：
Indoor recommendation target temperature acquiring unit, for obtaining indoor recommendation target temperature；
Coil pipe recommends target temperature acquiring unit, and for obtaining coil pipe target temperature is recommended；
First difference computational unit, for calculating the difference conduct of the indoor recommendation target temperature and the indoor target temperature
First difference；
Second difference computational unit, for obtaining the second difference according to the differences of the second difference of formula=a* first；A is no more than 1
Positive number；
Coil pipe target temperature determining unit, for calculating the difference that the coil pipe recommends target temperature and second difference, calculates
As a result it is defined as performing the actual coil pipe target temperature of the disk temperature PID arithmetic and exporting to the disk temperature PID arithmetic unit.
10. device according to claim 8 or claim 9, it is characterised in that the thermal source determines and distance acquiring unit includes：
Infrared sensor, in being arranged on air-conditioning；
Rotating mechanism, for driving the infrared sensor to rotate；
Thermal source determines and distance obtains subelement, for obtaining the temperature information in the infrared sensor sweep limits, according to
The temperature information obtains heat source temperature curve, according to the heat source temperature curve determine air-conditioning thermal source indoors and described
Real-time range between thermal source and air-conditioning.
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