CN104729021B - The control method and multiple on-line system of indoor set in multiple on-line system - Google Patents
The control method and multiple on-line system of indoor set in multiple on-line system Download PDFInfo
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- CN104729021B CN104729021B CN201510142072.4A CN201510142072A CN104729021B CN 104729021 B CN104729021 B CN 104729021B CN 201510142072 A CN201510142072 A CN 201510142072A CN 104729021 B CN104729021 B CN 104729021B
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- indoor set
- return air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses the control method and multiple on-line system of indoor set in a kind of multiple on-line system, the method includes：S1, the return air temperature of each indoor set in the multiple indoor sets of detection；S2, when any one indoor set is prepared to be transferred to holding state or prepare to be transferred to running status by current idle state by current operating conditions in multiple indoor sets, judges whether the return air temperature of the indoor set meets pre-conditioned；S3, if it is determined that the return air temperature of the indoor set meets pre-conditioned, the choke valve in the indoor set is then controlled to be closed, and after controlling the indoor set with current wind shelves the first Preset Time of operation, judge whether the return air temperature of the indoor set meets pre-conditioned again, and the state of the indoor set is controlled according to the result for judging again.The control method of the embodiment of the present invention, can reduce the error of return air temperature detection, overcome influence of the hot and cold radiation to return air temperature, improve the reliability of multiple on-line system, improve Consumer's Experience.
Description
Technical field
The present invention relates to air-conditioning technical field, the control method of indoor set and multi-joint in more particularly to a kind of multiple on-line system
Machine system.
Background technology
In multiple central air conditioner field, air cooling system receives heat transfer medium constraint smaller because of it, using more and more extensive.Return
Wind is the source of air-treatment, and return air temperature is then an important parameter in air handling process, and it approximately characterizes interior
Outer air current state.According to return air temperature, air-conditioning system decides whether to open refrigeration, heats；Further, air-conditioning system root
Output how many cold, heat are determined according to return air temperature；Finally, air-conditioning system determines when stop freezing, makes according to return air temperature
Heat.However, in reality, due to the influence of hot and cold radiation, return air temperature and indoor and outdoor true environment that air-conditioning system is detected
Temperature has certain deviation, and this will cause air-conditioning system to make some erroneous judgements, and then produce as frequently reached design temperature shutdown, frequency
It is numerous reach design temperature and be not easy to be again turned on, phenomenon and the situation such as system output and actual load demand are mismatched, both shadow
Consumer's Experience is rung, and hidden danger is brought to air-conditioning system reliability.
The content of the invention
The purpose of the present invention is intended at least solve above-mentioned technological deficiency.
Therefore, the control method it is an object of the present invention to propose indoor set in a kind of multiple on-line system, the control
Method can avoid indoor set from frequently reaching halt condition and shut down, it is also possible to avoid the indoor set in holding state because of return air
Temperature distortion and be difficult to be again turned on, the reliability of multiple on-line system is improved, so as to improve Consumer's Experience.
Second object of the present invention is to propose a kind of multiple on-line system.
To reach above-mentioned purpose, the controlling party of indoor set in the multiple on-line system that first aspect present invention embodiment is proposed
Method, the multiple on-line system includes outdoor unit and multiple indoor sets, the described method comprises the following steps：S1, detects the multiple
The return air temperature of each indoor set in indoor set；S2, when in the multiple indoor set any one indoor set by currently running shape
When state prepares to be transferred to holding state or prepare to be transferred to running status by current idle state, judging the return air temperature of the indoor set is
It is no to meet pre-conditioned；S3, if it is determined that the return air temperature of the indoor set meets described pre-conditioned, then in controlling the indoor set
Choke valve be closed, and control the indoor set with current wind shelves operation the first Preset Time after, the room is judged again
Whether the return air temperature of interior machine meets described pre-conditioned, and the state of the indoor set is carried out according to the result for judging again
Control.
The control method of indoor set in multiple on-line system according to embodiments of the present invention, can reduce return air temperature detection
Error, overcomes influence of the hot and cold radiation to return air temperature, and indoor set can be avoided frequently to reach halt condition and shut down, and also may be used
To avoid the indoor set in holding state from being difficult to be again turned on because of return air temperature distortion, the reliability of multiple on-line system is improved
Property, so as to improve Consumer's Experience.
In one embodiment of the invention, when the indoor set is run with heating mode, if the return air of the indoor set
Temperature is more than or equal to design temperature and default compensation temperature sum, then judge that the return air temperature of the indoor set meets described default
Condition；When the indoor set runs in a chiller mode, if the return air temperature of the indoor set is less than or equal to design temperature and presets
Compensation temperature sum, then judge that the return air temperature of the indoor set meets described pre-conditioned.
In one embodiment of the invention, in step s3, if judging that the return air temperature of the indoor set meets again
It is described pre-conditioned, then control the indoor set to enter holding state by running status；If judging the return air of the indoor set again
Temperature does not meet described pre-conditioned, then the state before controlling the indoor set to be closed according to choke valve is run, until detecting
The return air temperature of the indoor set meet it is described it is pre-conditioned after, control the indoor set to enter holding state by running status.
In one embodiment of the invention, when in the multiple indoor set any one indoor set by current idle state
When preparation is transferred to running status, wherein, if it is determined that the return air temperature of the indoor set in holding state meets described pre-
If condition, then the choke valve in the control indoor set in holding state is closed, and controls described being in treat
After the indoor set of machine state is with current wind shelves operation first Preset Time, the interior in holding state is judged again
Whether the return air temperature of machine meets described pre-conditioned；If judging the return air temperature of the indoor set in holding state again
Degree does not meet described pre-conditioned, then control the indoor set in holding state to be opened according to present instruction and run.
In one embodiment of the invention, if it is determined that the return air temperature of the indoor set in holding state less than
Foot is described pre-conditioned, then control the indoor set in holding state to be opened according to present instruction and run.
To reach above-mentioned purpose, the multiple on-line system that second aspect present invention embodiment is proposed, including：Outdoor unit；It is multiple
Indoor set；Temperature detecting module, the temperature detecting module is used to detect the return air of each indoor set in the multiple indoor set
Temperature；Control module, the control module is for any one indoor set in the multiple indoor set by current operating conditions
Preparation be transferred to holding state or by current idle state prepare be transferred to running status when, judge the indoor set return air temperature whether
Meet pre-conditioned, wherein, if the control module judges that the return air temperature of the indoor set meets described pre-conditioned, control
The choke valve made in the indoor set is closed, and control the indoor set with current wind shelves operation the first Preset Time after,
The control module judges whether the return air temperature of the indoor set meets described pre-conditioned again, and according to the knot for judging again
Fruit is controlled to the state of the indoor set.
Multiple on-line system according to embodiments of the present invention, can reduce the error of return air temperature detection, overcome hot and cold radiation
Influence to return air temperature, can avoid indoor set from frequently reaching halt condition and shut down, it is also possible to avoid in holding state
Indoor set be difficult to be again turned on because of return air temperature distortion, the reliability of multiple on-line system is improved, so as to improve user
Experience.
In one embodiment of the invention, when the indoor set is run with heating mode, if the return air of the indoor set
Temperature is more than or equal to design temperature and default compensation temperature sum, and the control module then judges the return air temperature of the indoor set
Meet described pre-conditioned；When the indoor set runs in a chiller mode, if the return air temperature of the indoor set is less than or equal to set
Constant temperature degree and default compensation temperature sum, the control module then judge that the return air temperature of the indoor set meets the default bar
Part.
In one embodiment of the invention, if the control module judges that the return air temperature of the indoor set meets again
It is described pre-conditioned, then control the indoor set to enter holding state by running status；If the control module judges this again
The return air temperature of indoor set does not meet described pre-conditioned, then the state before controlling the indoor set to be closed according to choke valve is transported
OK, until the return air temperature for detecting the indoor set meet it is described it is pre-conditioned after, the control module control the indoor set by
Running status enters holding state.
In one embodiment of the invention, in the multiple indoor set any one indoor set by current idle state
When preparation is transferred to running status, the control module judges whether the return air temperature of the indoor set in holding state meets
It is described pre-conditioned, wherein, if the control module judges that the return air temperature of the indoor set in holding state meets
It is described pre-conditioned, then control the choke valve in the indoor set in holding state to be closed, and control described
After indoor set in holding state is with current wind shelves operation first Preset Time, the control module judges described again
Whether the return air temperature of the indoor set in holding state meets described pre-conditioned；If the control module judges institute again
The return air temperature for stating the indoor set in holding state does not meet described pre-conditioned, then control the room in holding state
Interior machine is opened according to present instruction and run.
In one embodiment of the invention, in the multiple indoor set any one indoor set by current idle state
Preparation is when being transferred to running status, if the control module judge the return air temperature of the indoor set in holding state less than
Foot is described pre-conditioned, then control the indoor set in holding state to be opened according to present instruction and run.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and be readily appreciated that, wherein：
Fig. 1 is the flow chart of the control method of indoor set in multiple on-line system according to one embodiment of the invention；
Fig. 2 is the block diagram of multiple on-line system according to an embodiment of the invention.
Reference：
Outdoor unit 10, multiple indoor sets 20, temperature detecting module 30 and control module 40.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing different structure of the invention.For letter
Change disclosure of the invention, hereinafter the part and setting to specific examples are described.Certainly, they are only merely illustrative, and
Purpose does not lie in the limitation present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is again the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity.This
Outward, the invention provides various specific technique and material example, but those of ordinary skill in the art can be appreciated that
The use of the applicable property and/or other materials of other techniques.In addition, fisrt feature described below second feature it
" on " structure can include that the first and second features be formed as the embodiment of directly contact, it is also possible to including other feature shape
Into the embodiment between the first and second features, such first and second feature may not be directly contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection, or two connections of element internal, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
Fig. 1 is the flow chart of the control method of indoor set in multiple on-line system according to one embodiment of the invention.Such as Fig. 1
Shown, the control method of indoor set, comprises the following steps in the multiple on-line system of the embodiment of the present invention：
S1, the return air temperature of each indoor set in the multiple indoor sets of detection.
Specifically, multiple on-line system detects the return air temperature T1 of indoor set at interval of time Δ t.
S2, when any one indoor set is prepared to be transferred to holding state or by current by current operating conditions in multiple indoor sets
When holding state prepares to be transferred to running status, judge whether the return air temperature of the indoor set meets pre-conditioned.
In one embodiment of the invention, if current indoor machine is in running status, when the indoor set is heating mould
When formula is run, if the return air temperature T1 of the indoor set is more than or equal to design temperature Ts with default compensation temperature Δ T sums (i.e.
T1 >=Ts+ Δ T), then judge that the return air temperature of the indoor set meets pre-conditioned；When the indoor set runs in a chiller mode,
If the return air temperature T1 of the indoor set is less than or equal to design temperature Ts and default compensation temperature Δ T sums (i.e. T1≤Ts+ Δs
T), then judge that the return air temperature of the indoor set meets pre-conditioned.
S3, if it is determined that the return air temperature of the indoor set meets pre-conditioned, then controls at the choke valve in the indoor set
In closed mode, and control the indoor set with current wind shelves operation the first Preset Time after, the return air of the indoor set is judged again
It is pre-conditioned whether temperature meets, and the state of indoor set is controlled according to the result for judging again.
In one embodiment of the invention, when in multiple indoor sets any one indoor set by current operating conditions prepare
When being transferred to holding state, in step s3, if judging that the return air temperature of the indoor set meets described pre-conditioned again, control
Make the indoor set and holding state is entered by running status；If judging that the return air temperature of the indoor set does not meet described default again
Condition, the then state before controlling the indoor set to be closed according to choke valve is run, until detecting the return air temperature of the indoor set
Meet it is described it is pre-conditioned after, control the indoor set to enter holding state by running status.
Specifically, if it is determined that the return air temperature of the indoor set meets pre-conditioned, then first by the throttling in the indoor set
Valve is closed, then by current wind shelves operation a period of time t (i.e. the first Preset Time) after, detect return air temperature again, and by this time
Air temperature is designated as Tn, and to judge whether Tn meets again pre-conditioned, that is, judge whether that meeting Tn >=Ts+ Δs T (heats mould
Formula), or Tn≤Ts+ Δs T (refrigeration mode).If meet Tn >=Ts+ Δs T (heating mode), or Tn≤Ts+ Δs T (refrigeration moulds
Formula), then control the indoor set to enter holding state by running status.
If more specifically, judge that the return air temperature of the indoor set does not meet pre-conditioned again, that is, Tn ＜ Ts+ Δs
T (heating mode), or Tn ＞ Ts+ Δs T (refrigeration mode), then the mode operation before controlling the indoor set to be closed according to choke valve,
Until detect the indoor set return air temperature meet it is pre-conditioned after, i.e. Tn >=Ts+ Δs T (heating mode) or Tn≤Ts+ Δs T
(refrigeration mode), controls the indoor set to enter holding state by running status.
The control method of indoor set in the multiple on-line system of the embodiment of the present invention, the room under detecting refrigeration, heating state
During return air temperature triggering halt condition (the meeting pre-conditioned) of interior machine, hot and cold radiation effect is first eliminated, then reaffirmed
Whether return air temperature reaches halt condition, can reduce return air temperature detection error, overcomes the hot and cold shadow radiated to return air temperature
Ring, it is to avoid system frequently reaches halt condition and shuts down.
In another embodiment of the present invention, when in multiple indoor sets any one indoor set it is accurate by current idle state
It is standby when being transferred to running status, that is, should be in holding state indoor set receive start-up command and detecting heat instruction/
During refrigeration instruction, judge whether the return air temperature for being in the indoor set of holding state meets pre-conditioned, that is, judge whether full
Sufficient T1 >=Ts+ Δs T while heating instruction (detect) or T1≤Ts+ Δs T (when detecting refrigeration instruction), then perform S3, institute
S3 is stated, is specifically included：
If it is determined that the return air temperature of the indoor set in holding state meets pre-conditioned, then control is in holding state
Indoor set in choke valve be closed, and control the indoor set in holding state first pre- with the shelves operation of current wind
If after the time, judging whether the return air temperature of the indoor set in holding state meets pre-conditioned again；If judged again
The return air temperature of the indoor set in holding state does not meet pre-conditioned, then control in holding state indoor set according to work as
Operation is opened in preceding instruction.
Specifically, if meeting T1 >=Ts+ Δs T while heating instruction (detect) or T1≤Ts+ Δs T (detects refrigeration
During instruction), then first the choke valve in correspondence indoor set is closed, and control corresponding indoor set pre- with the shelves operation first of current wind
If the time, return air temperature is then detected again, be designated as Tn, and it is pre-conditioned to judge whether return air temperature Tn meets again, is
It is no to meet Tn >=Ts+ Δs T while heating instruction (detect) or Tn≤Ts+ Δs T (when detecting refrigeration instruction).
Further, if judging that return air temperature Tn does not meet pre-conditioned again, i.e. Tn ＜ Ts+ Δs T (is detected and heated
During instruction) or Tn ＞ Ts+ Δs T (when detecting refrigeration instruction), then control corresponding indoor set to be opened according to present instruction and transport
OK.
In addition, when judging whether the return air temperature of the indoor set in holding state meets pre-conditioned again, if Tn
>=Ts+ Δs T while heating instruction (detect) or Tn≤Ts+ Δs T (when detecting refrigeration instruction), then examine at interval of time Δ t
The return air temperature of indoor set is surveyed, until the return air temperature of the indoor set for detecting meets Tn ＜ Ts+ Δs T and (detects and heat instruction
When) or during Tn ＞ Ts+ Δs T (when detecting refrigeration instruction), control the indoor set to be opened according to present instruction and run.
In one embodiment of the invention, when in multiple indoor sets any one indoor set prepared by current idle state
When being transferred to running status, wherein, if it is determined that the return air temperature of the indoor set in holding state does not meet pre-conditioned, then control
Indoor set of the system in holding state is opened according to present instruction and run.The method of the embodiment of the present invention, when in holding state
Indoor set receive start-up command but when return air temperature does not reach compressor start up condition (when meeting pre-conditioned), first eliminate it is cold,
Heat radiation influences, and then reaffirms whether return air temperature reaches compressor start up condition, can avoid the indoor set in holding state
It is difficult to be again turned on because of return air temperature distortion.
The control method of indoor set in the multiple on-line system of the embodiment of the present invention, can reduce the mistake of return air temperature detection
Difference, overcomes influence of the hot and cold radiation to return air temperature, and indoor set can be avoided frequently to reach halt condition and shut down, it is also possible to
Avoid the indoor set in holding state from being difficult to be again turned on because of return air temperature distortion, improve the reliability of multiple on-line system
Property, so as to improve Consumer's Experience.
In order to realize above-described embodiment, the invention allows for a kind of multiple on-line system.
Fig. 2 is the block diagram of multiple on-line system according to an embodiment of the invention.As shown in Fig. 2 the embodiment of the present invention
Multiple on-line system, including：Outdoor unit 10, multiple indoor sets 20, temperature detecting module 30 and control module 40.
Temperature detecting module 30 is used to detect the return air temperature of each indoor set 20 in multiple indoor sets 20.
Specifically, temperature detecting module 30 detects the return air temperature T1 of indoor set 20 at interval of time Δ t.
Control module 40 is used for any one indoor set 20 in multiple indoor sets 20 and is prepared to be transferred to by current operating conditions
Holding state or by current idle state prepare be transferred to running status when, judge whether the return air temperature of the indoor set 20 meets pre-
If condition, wherein, if control module 40 judges that the return air temperature of the indoor set 20 meets pre-conditioned, control the indoor set
Choke valve in 20 is closed, and control the indoor set 20 with current wind shelves operation the first Preset Time after, control mould
Block 40 judges whether the return air temperature of the indoor set 20 meets pre-conditioned again, and according to the result for judging again to indoor set
20 state is controlled.
In one embodiment of the invention, if current indoor machine is in running status, when the indoor set 20 is heating
During mode operation, if the return air temperature T1 of the indoor set 20 more than or equal to design temperature Ts and default compensation temperature Δ T it
(i.e. T1 >=Ts+ Δ T), control module 40 then judges that the return air temperature of the indoor set 20 meets pre-conditioned；When the indoor set
20 when running in a chiller mode, if the return air temperature T1 of the indoor set 20 is less than or equal to design temperature Ts and default compensation temperature
Degree Δ T sums (i.e. T1≤Ts+ Δ T), control module 40 then judges that the return air temperature of the indoor set 20 meets pre-conditioned.
In one embodiment of the invention, when in multiple indoor sets any one indoor set 20 it is accurate by current operating conditions
For when being transferred to holding state, if control module 40 judges that the return air temperature of the indoor set 20 meets pre-conditioned again, control
Make the indoor set 20 and holding state is entered by running status；If control module 40 judges the return air temperature of the indoor set 20 again
Do not meet pre-conditioned, then the state before controlling the indoor set 20 to be closed according to choke valve is run, until detecting the interior
The return air temperature of machine 20 meet it is pre-conditioned after, control module 40 control the indoor set 20 holding state is entered by running status.
Specifically, if control module 40 judges that the return air temperature of the indoor set 20 meets pre-conditioned, control module
40 first close the choke valve in the indoor set 20, then control the indoor set 20 by current wind shelves operation a period of time t (i.e. first
Preset Time) after, return air temperature is obtained again, and this return air temperature is designated as Tn, and to judge whether Tn meets again default
Condition, that is, judge whether to meet Tn >=Ts+ Δs T (heating mode), or Tn≤Ts+ Δs T (refrigeration mode), if meeting default bar
Part, control module 40 then controls the indoor set 20 to enter holding state by running status.
More specifically, if control module 40 judges that the return air temperature of the indoor set 20 does not meet pre-conditioned again,
It is exactly Tn ＜ Ts+ Δs T (heating mode), or Tn ＞ Ts+ Δs T (refrigeration mode), control module 40 then controls the indoor set 20 to press
According to choke valve close before mode operation, until the return air temperature for detecting the indoor set 20 meet it is pre-conditioned after, i.e. Tn >=
Ts+ Δs T (heating mode) or Tn≤Ts+ Δs T (refrigeration mode), control the indoor set 20 to enter holding state by running status.
The multiple on-line system of the embodiment of the present invention, the return air temperature triggering of indoor set under detecting refrigeration, heating state
During halt condition (meeting pre-conditioned), hot and cold radiation effect is first eliminated, then reaffirm whether return air temperature reaches and stop
Machine condition, can reduce return air temperature detection error, overcome influence of the hot and cold radiation to return air temperature, it is to avoid system frequently reaches
Shut down to halt condition.
In another embodiment of the present invention, when in multiple indoor sets any one indoor set 20 by current idle state
When preparation is transferred to running status, that is, the indoor set 20 for being in holding state receives start-up command and detects and heats finger
During order/refrigeration instruction, control module 40 judges whether the return air temperature of the indoor set 20 in holding state meets pre-conditioned,
Judge whether to meet T1 >=Ts+ Δs T while heating instruction (detect) or T1≤Ts+ Δs T (when detecting refrigeration instruction), its
In,
If control module 40 judges that the return air temperature of the indoor set 20 in holding state meets pre-conditioned, control
Choke valve in indoor set 20 in holding state is closed, and controls the indoor set 20 in holding state to work as
After preceding wind shelves the first Preset Time of operation, control module 40 judges that the return air temperature of the indoor set 20 in holding state is again
It is no to meet pre-conditioned；If control module 40 judges that the return air temperature of the indoor set 20 in holding state does not meet pre- again
If condition, then indoor set 20 of the control in holding state is opened according to present instruction and run.
Specifically, finger is heated when one or more indoor sets 20 in holding state receive start-up command and detect
During order/refrigeration instruction, if control module 40 judges that the return air temperature of the indoor set 20 in holding state meets pre-conditioned,
Meet T1 >=Ts+ Δs T while heating instruction (detect) or T1≤Ts+ Δs T (when detecting refrigeration instruction), control module 40
When then first the choke valve in correspondence indoor set 20 is closed, and controls corresponding indoor set 20 to be preset with current wind shelves operation first
Between, return air temperature is then detected again, Tn is designated as, and it is pre-conditioned to judge whether return air temperature Tn meets again, i.e., it is whether full
Sufficient Tn >=Ts+ Δs T while heating instruction (detect) or Tn≤Ts+ Δs T (when detecting refrigeration instruction), if be unsatisfactory for, control
Molding block 40 then controls corresponding indoor set 20 to open operation according to present instruction.
In addition, when judging whether the return air temperature of the indoor set 20 in holding state meets pre-conditioned again, if
Tn >=Ts+ Δs T while heating instruction (detect) or Tn≤Ts+ Δs T (when detecting refrigeration instruction), then at interval of time Δ t
The return air temperature of indoor set 20 is detected, until the return air temperature of the indoor set 20 for detecting meets Tn ＜ Ts+ Δs T and (detects system
During heat instruction) or during Tn ＞ Ts+ Δs T (when detecting refrigeration instruction), control module 40 controls the indoor set 20 according to current
Operation is opened in instruction.
In one embodiment of the invention, any one indoor set 20 is accurate by current idle state in multiple indoor sets
For when being transferred to running status, if control module 40 judges that the return air temperature of the indoor set 20 in holding state does not meet default
Condition, then indoor set 20 of the control in holding state is according to present instruction unlatching operation.The system of the embodiment of the present invention, works as place
(meet pre-conditioned when the indoor set 20 of holding state receives start-up command but return air temperature does not reach compressor start up condition
When), hot and cold radiation effect is first eliminated, then reaffirm whether return air temperature reaches compressor start up condition, can avoid in standby
The indoor set 20 of state is difficult to be again turned on because of return air temperature distortion.
The multiple on-line system of the embodiment of the present invention, can reduce the error of return air temperature detection, overcome hot and cold radiation to returning
The influence of air temperature, can avoid indoor set from frequently reaching halt condition and shut down, it is also possible to avoid the room in holding state
Interior machine is difficult to be again turned on because of return air temperature distortion, the reliability of multiple on-line system is improved, so as to improve Consumer's Experience.
Any process described otherwise above or method description in flow chart or herein is construed as, and expression includes
It is one or more for realizing specific logical function or process the step of the module of code of executable instruction, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussion suitable
Sequence, including function involved by basis by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list of the executable instruction for realizing logic function, in may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or with reference to these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
The dress that defeated program is used for instruction execution system, device or equipment or with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：With the electricity that one or more are connected up
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can thereon print described program or other are suitable
Medium, because optical scanner for example can be carried out by paper or other media, then enters edlin, interpretation or if necessary with it
His suitable method is processed electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In implementation method, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If for example, realized with hardware, and in another embodiment, can be with well known in the art
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
The rapid hardware that can be by program to instruct correlation is completed, and described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, during each functional unit in each embodiment of the invention can be integrated in a processing module, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is to realize in the form of software function module and as independent production marketing or when using, it is also possible to which storage is in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (10)
1. in a kind of multiple on-line system indoor set control method, it is characterised in that the multiple on-line system include outdoor unit and
Multiple indoor sets, the described method comprises the following steps：
S1, detects the return air temperature of each indoor set in the multiple indoor set；
S2, when any one indoor set is prepared to be transferred to holding state or by current by current operating conditions in the multiple indoor set
When holding state prepares to be transferred to running status, judge whether the return air temperature of the indoor set meets pre-conditioned；
S3, if it is determined that the return air temperature of the indoor set meets described pre-conditioned, then controls at the choke valve in the indoor set
In closed mode, and control the indoor set with current wind shelves operation the first Preset Time after, the return air of the indoor set is judged again
Whether temperature meets described pre-conditioned, and the state of the indoor set is controlled according to the result for judging again.
2. in multiple on-line system as claimed in claim 1 indoor set control method, it is characterised in that
When the indoor set is run with heating mode, if the return air temperature of the indoor set more than or equal to design temperature with it is default
Compensation temperature sum, then judge that the return air temperature of the indoor set meets described pre-conditioned；
When the indoor set runs in a chiller mode, if the return air temperature of the indoor set less than or equal to design temperature with it is default
Compensation temperature sum, then judge that the return air temperature of the indoor set meets described pre-conditioned.
3. in multiple on-line system as claimed in claim 2 indoor set control method, it is characterised in that in step s3,
If judging that the return air temperature of the indoor set meets described pre-conditioned again, the indoor set is controlled to be entered by running status
Enter holding state；
If judging that the return air temperature of the indoor set does not meet described pre-conditioned again, the indoor set is controlled according to choke valve
Before closing state operation, until the return air temperature for detecting the indoor set meet it is described it is pre-conditioned after, control the interior
Machine enters holding state by running status.
4. in multiple on-line system as claimed in claim 1 indoor set control method, it is characterised in that when the multiple interior
When any one indoor set is prepared to be transferred to running status by current idle state in machine, wherein,
If it is determined that the return air temperature of the indoor set in holding state meets described pre-conditioned, then it is in described in control
Choke valve in the indoor set of holding state is closed, and controls the indoor set in holding state with current wind
After shelves operation first Preset Time, judge whether the return air temperature of the indoor set in holding state meets institute again
State pre-conditioned；
If judging that the return air temperature of the indoor set in holding state does not meet described pre-conditioned again, institute is controlled
State the indoor set in holding state and open operation according to present instruction.
5. in multiple on-line system as claimed in claim 4 indoor set control method, it is characterised in that if it is determined that the place
Do not meet described pre-conditioned in the return air temperature of the indoor set of holding state, then control the indoor set in holding state
Opened according to present instruction and run.
6. a kind of multiple on-line system, it is characterised in that including：
Outdoor unit；
Multiple indoor sets；
Temperature detecting module, the temperature detecting module is used to detect the return air temperature of each indoor set in the multiple indoor set
Degree；
Control module, it is accurate by current operating conditions that the control module is used for any one indoor set in the multiple indoor set
During for being transferred to holding state or prepare to be transferred to running status by current idle state, judge whether the return air temperature of the indoor set is full
Foot is pre-conditioned, wherein,
If the control module judges that the return air temperature of the indoor set meets described pre-conditioned, in controlling the indoor set
Choke valve is closed, and control the indoor set with current wind shelves operation the first Preset Time after, the control module is again
Whether the secondary return air temperature for judging the indoor set meets described pre-conditioned, and according to the result for judging again to the indoor set
State be controlled.
7. multiple on-line system as claimed in claim 6, it is characterised in that
When the indoor set is run with heating mode, if the return air temperature of the indoor set more than or equal to design temperature with it is default
Compensation temperature sum, it is described pre-conditioned that the control module then judges that the return air temperature of the indoor set meets；
When the indoor set runs in a chiller mode, if the return air temperature of the indoor set less than or equal to design temperature with it is default
Compensation temperature sum, it is described pre-conditioned that the control module then judges that the return air temperature of the indoor set meets.
8. multiple on-line system as claimed in claim 7, it is characterised in that
If the control module judges that the return air temperature of the indoor set meets described pre-conditioned again, the indoor set is controlled
Holding state is entered by running status；
If the control module judges that the return air temperature of the indoor set does not meet described pre-conditioned again, the interior is controlled
State before machine is closed according to choke valve is run, until the return air temperature for detecting the indoor set meets described pre-conditioned
Afterwards, the control module controls the indoor set to enter holding state by running status.
9. multiple on-line system as claimed in claim 6, it is characterised in that any one indoor set in the multiple indoor set
When preparing to be transferred to running status by current idle state, the control module judges returning for the indoor set in holding state
Whether air temperature meets described pre-conditioned, wherein,
If the control module judges that the return air temperature of the indoor set in holding state meets described pre-conditioned,
Choke valve in the control indoor set in holding state is closed, and controls the room in holding state
After interior machine is with current wind shelves operation first Preset Time, the control module judges the room in holding state again
Whether the return air temperature of interior machine meets described pre-conditioned；
If it is described default that the control module judges that the return air temperature of the indoor set in holding state does not meet again
Condition, then control the indoor set in holding state to be opened according to present instruction and run.
10. multiple on-line system as claimed in claim 9, it is characterised in that any one is indoor in the multiple indoor set
When machine is prepared to be transferred to running status by current idle state, if the control module judges the interior in holding state
The return air temperature of machine does not meet described pre-conditioned, then control the indoor set in holding state to be opened according to present instruction
Operation.
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| CN106016589B (en) * | 2016-05-19 | 2019-11-08 | 广东美的制冷设备有限公司 | The adjusting method and device of air-conditioning set temperature |
| CN106766420B (en) * | 2016-11-28 | 2019-10-01 | 广东美的暖通设备有限公司 | Multi-line system and its heating in the anti-hydrops of machine control method |
| CN110594982B (en) * | 2019-09-19 | 2021-07-06 | 宁波奥克斯电气股份有限公司 | Air conditioner return air temperature detection, correction and control method |
| CN110553339A (en) * | 2019-09-19 | 2019-12-10 | 宁波奥克斯电气股份有限公司 | Heat accumulation prevention control method and device for multi-split air conditioner and air conditioner |
| CN110895031B (en) * | 2019-11-07 | 2021-05-25 | 重庆海尔空调器有限公司 | Air conditioner shutdown control method and device and air conditioner |
| CN111219850B (en) * | 2020-01-17 | 2022-05-31 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner standby control method and device, multi-split air conditioner and storage medium |
| CN114076391B (en) * | 2020-08-17 | 2022-11-22 | 广东美的制冷设备有限公司 | Multi-split air conditioner, control method thereof, air conditioner control device and readable storage medium |
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| KR101346448B1 (en) * | 2007-09-03 | 2014-01-10 | 엘지전자 주식회사 | Multi air conditioner system and auto changeover method for multi air conditioner system |
| KR101270621B1 (en) * | 2007-12-21 | 2013-06-03 | 엘지전자 주식회사 | Air conditioning system |
| EP2927614B1 (en) * | 2012-11-29 | 2020-08-05 | Mitsubishi Electric Corporation | Air conditioning device |
| CN103206750A (en) * | 2013-04-12 | 2013-07-17 | 浙江大学 | Multi-split air conditioning system and status switching control method therefor |
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| CN103900215B (en) * | 2014-03-24 | 2017-12-26 | 四川长虹电器股份有限公司 | A kind of detection method and air-conditioning |
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