CN104807129A - Control method of air conditioner - Google Patents
Control method of air conditioner Download PDFInfo
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- CN104807129A CN104807129A CN201410033572.XA CN201410033572A CN104807129A CN 104807129 A CN104807129 A CN 104807129A CN 201410033572 A CN201410033572 A CN 201410033572A CN 104807129 A CN104807129 A CN 104807129A
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- Prior art keywords
- premises station
- conditioner
- air
- indoor set
- operational mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method of an air conditioner. The air conditioner comprises an indoor unit and an outdoor unit which communicate with each other. The control method comprises the steps of respectively performing communication detection for the indoor unit and the outdoor unit after the air conditioner is electrified; in case of communication fault between the indoor unit and the outdoor unit, calling the previous operation module of the air conditioner and the previous operation time of a compressor of the air conditioner through the outdoor unit; determining the subsequent operation mode through the outdoor unit according to the previous operation mode and the previous operation time; running the outdoor unit according to the determined subsequent operation mode. According to the method, the indoor unit and the outdoor unit can continuously run in case of communication fault, and a fault code can be displayed, so that the comfort of a user in use can be ensured, the repair time is gained for the after-sell service people of a manufacturer, the complaint can be reduced, and the satisfaction of the user can be increased.
Description
Technical field
The present invention relates to electrical equipment manufacturing technology field, particularly a kind of control method of air-conditioner.
Background technology
Along with the development of air-conditioner and converter technique and universal, transducer air conditioning has occupied most air-conditioning market.As everyone knows, the indoor set of transducer air conditioning and off-premises station need to carry out information interaction, such as operational mode, running frequency, fault message etc., the mutual current ring communication consisted of indoor electric-controlled plate, outdoor electric-controlled plate and order wire of this type of air-conditioner operation information completes, and communication link plays an important role in the normal course of operation of air-conditioner.Analyze from the after-sales service data statistics of each manufacturer, can find that the communication failure of air conditioner indoor and outdoor machine is one of major failure of after-sales service.
At present, when the indoor set of air-conditioner and off-premises station generation communication failure, generally take the processing mode comparatively guarded, namely air-conditioner complete machine is out of service, and air-conditioner is quit work, and carries out fault cues, and reminding user reports for repairment.Particularly, as shown in Figure 1, in correlation technique when indoor apparatus of air conditioner and off-premises station generation communication failure, air-conditioner processing procedure comprises:
S1 ', air-conditioner powers on start.
After air-conditioner start, the indoor drive plate of air-conditioner communicates with outdoor drive plate.
S2 ', judges whether indoor set communicates successfully with off-premises station.
In air-conditioner normal course of operation, detect the communication information of indoor set and off-premises station according to preset rules, such as indoor set detects the communication information of off-premises station, and off-premises station detects the communication information of indoor set.If indoor set communicates successfully with off-premises station, then perform step S3 ', otherwise perform step S4 '.
S3 ', air-conditioner normally runs.
S4 ', judges whether the time of the communication information is greater than Preset Time.
If the communication information of off-premises station do not detected in indoor set certain hour such as T, the communication information of indoor set in off-premises station certain time interval T, do not detected, then can judge indoor set and off-premises station generation communication failure.In order to reduce error in judgement, judging that the communication failure time can be greater than Preset Time, such as, when T is greater than Preset Time N, then judging indoor set and off-premises station generation communication failure, otherwise returning step S2 '.
S5 ', load is out of service, and carries out malfunction coefficient.
If indoor set and off-premises station generation communication failure, then indoor set and off-premises station take secured fashion to stop load action.Such as indoor set closes electric auxiliary heat, indoor fan, wind guide strip even load, off-premises station close compressor, outdoor fan even load, and cut off off-premises station power supply, indoor set permanently cuts off the power supply of off-premises station.In addition, indoor set points out communication failure code on the display panel.User sees that failure code, air-conditioner cannot run, then report for repairment, waits for personnel's on-site maintenance after sale.
In sum, in correlation technique when air conditioner room unit and off-premises station generation communication failure, air-conditioner complete machine is out of service, and between age at failure, air-conditioner can not use, and thus affects the comfort of user.In addition, use the busy season at air-conditioner, usually can lack due to accessory after sale, the problems such as maintenance distance, personnel can not keep in repair in time after sale, thus can cause the complaint of user, cause user to be discontented with.
Summary of the invention
Object of the present invention is intended to solve above-mentioned technical problem at least to a certain extent.
For this reason, one object of the present invention is the control method proposing a kind of air-conditioner, the control method of this air-conditioner, when indoor set and off-premises station generation communication failure, can ensure that air-conditioner continues to run, meet the demand of user, guarantee the comfort of user.Maintenance time can be striven for for the personnel after sale of manufacturer, improve the satisfaction of user.
For achieving the above object, embodiments of the invention propose a kind of control method of air-conditioner, wherein, air-conditioner comprises indoor set and off-premises station, described indoor set communicates with described off-premises station, described control method comprises the following steps: after described air-conditioner powers on, and described indoor set and described off-premises station carry out communication check respectively; If there is communication failure between described indoor set and described off-premises station, then described off-premises station transfers running time last time of the compressor of described air-conditioner operational mode last time and described air-conditioner; Described off-premises station is according to operational mode and determined follow-up operational mode running time last time described last time; And described off-premises station runs according to the described follow-up operational mode determined.
The control method of the air-conditioner of the embodiment of the present invention, under the prerequisite ensureing air-conditioner safety, when indoor set and off-premises station generation communication failure, off-premises station is by transferring air-conditioner operational mode last time and compressor running time last time, and then with Fault Control rule according to last time operational mode and effectively control running time air-conditioner continue run, that is, when indoor set and the off-premises station generation communication failure of air-conditioner, air-conditioner still can continue to run, and ensures the comfort of user.For after-sales service is raced against time, reduce the pressure of after-sales service personnel, thus reduce the complaint of user, improve the satisfaction of user.
In addition, in some embodiments of the invention, the control method of above-mentioned air-conditioner also comprises: if there is communication failure between described indoor set and described off-premises station, described indoor set carries out communication failure prompting.
Can be guaranteed to keep in good repair by reminding user in time by communication failure prompting.
Wherein, in some embodiments of the invention, described off-premises station, according to operational mode and determine follow-up operational mode running time described last time, specifically comprises: if be more than or equal to the first Preset Time described running time last time, then described off-premises station runs with operational mode described last time; Be less than described first Preset Time described running time last time else if, then described off-premises station is to run with the counteractive operational mode of described operational mode last time, and preserves operational mode.
Further, in some embodiments of the invention, if described running time last time is less than described first Preset Time, then described off-premises station is to run with the counteractive operational mode of described operational mode last time, specifically comprise: if described last time, operational mode was refrigeration mode, then described off-premises station runs with heating mode; If described last time, operational mode was heating mode, then described off-premises station ran in a chiller mode.
In some embodiments of the invention, described control method also comprises: described indoor set judges described follow-up operational mode according to the temperature changing trend of the evaporimeter of described air-conditioner; Described indoor set judges that whether described follow-up operational mode is consistent with the set model of the remote controller of described air-conditioner; And when the set model of described follow-up operational mode and described remote controller is inconsistent, described indoor set controls electricity under described off-premises station.
Wherein, in some embodiments of the invention, described indoor set judges the present mode of operation of described off-premises station according to the temperature changing trend of the evaporimeter of described air-conditioner, specifically comprise: if the variations in temperature of described evaporimeter is downward trend, then described indoor set judges that described off-premises station runs in a chiller mode; If the variations in temperature of described evaporimeter is ascendant trend, then described indoor set judges that described off-premises station runs with heating mode.
In some embodiments of the invention, when described follow-up operational mode is consistent with the set model of described remote controller, described control method also comprises: judge described indoor set whether break down or described indoor load parameter whether in preset range; If described indoor set breaks down or described indoor load running parameter not in described preset range, then to control described indoor load out of service for described indoor set, and under controlling described off-premises station, electricity is out of service to control described compressor; And described indoor set remove fault or described indoor load parameter in described preset range time, described indoor set controls described off-premises station and powers on to control described compressor operating.
Further, in some embodiments of the invention, if described indoor set does not break down or described indoor load parameter in described preset range, also comprise: judge whether described off-premises station breaks down or whether described outdoor load running parameter meets service requirement; If described off-premises station breaks down or described outdoor load running parameter does not meet service requirement, then control described outdoor load out of service; And after described off-premises station removes fault or described outdoor load parameter meets described service requirement, control described outdoor load running.
Further, in some embodiments of the invention, if described off-premises station does not break down or described outdoor load running parameter meets service requirement, also comprise: judge whether described outdoor load running parameter meets limit condition frequently; If the satisfied limit of described outdoor load running parameter condition frequently, then described off-premises station controls the operation frequently of described compressor limit.
Wherein, in some embodiments of the invention, the control method of above-mentioned air-conditioner also comprises: the running time of recording described compressor; If described compressor operating time is greater than the second Preset Time, then preserved described running time, wherein, described second Preset Time is less than described first Preset Time.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 be prior art indoor set and off-premises station generation communication failure time the flow chart of processing method;
Fig. 2 is the flow chart of the control method of air-conditioner according to an embodiment of the invention;
Fig. 3 is the line schematic diagram of the automatically controlled control system of air-conditioner according to an embodiment of the invention;
Fig. 4 is the flow chart of the control method of air-conditioner according to the present invention's specific embodiment; And
Fig. 5 is the flow chart of the control method of air-conditioner according to another specific embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
As everyone knows, transducer air conditioning is in running, need many control informations, the temperature of the operational mode of such as indoor set, environment temperature, evaporimeter, fault message and target frequency, off-premises station needs to control compressor according to this type of information and carries out reliability service, in like manner, indoor set also needs the information obtaining off-premises station, such as off-premises station environment temperature, delivery temperature, condenser temperature, fault message etc., that is, when air-conditioner normally runs, indoor set and off-premises station need normally to communicate.
For the problem in correlation technique, the embodiment of the present invention proposes processing method when a kind of air conditioner room unit and off-premises station generation communication failure.Basic ideas are: when indoor and outdoor communication failure appears in air-conditioner, failure operation pattern is entered according to the rule preset, ensure that air-conditioner can proceed reliable operation within the scope of certain frequency, even if thus reach air-conditioner generation communication failure, still the object of use can be run, thus race against time for after-sales service, reduce the complaint of user, improve user satisfaction.
The control method of a kind of air-conditioner proposed according to the embodiment of the present invention is described with reference to the accompanying drawings.
Air-conditioner comprises indoor set and off-premises station, and indoor set communicates with off-premises station, and Fig. 2 is the control method of air-conditioner according to an embodiment of the invention, and as shown in Figure 2, the control method of the air-conditioner of the embodiment of the present invention comprises the following steps:
S1, after air-conditioner powers on, indoor set and off-premises station carry out communication check respectively.
Particularly, after air-conditioner powers on, in air-conditioner normal course of operation, the communication information of indoor set and off-premises station can be detected according to preset rules, such as indoor set detects the communication information of off-premises station, off-premises station detects the communication information of indoor set, if indoor set is such as greater than at certain hour the communication information that 2 minutes do not detect off-premises station, or off-premises station is such as greater than at certain hour the communication information that 2 minutes do not detect indoor set, then can think indoor set and off-premises station generation communication failure.Further, after indoor set and off-premises station generation communication failure, indoor set cuts off off-premises station power supply, after N1 time such as 2 minutes, indoor set controls off-premises station and powers on, and then indoor set and off-premises station carry out communication check respectively, and after the N2 time is such as greater than 2 minutes, judge whether indoor set and off-premises station communication failure occur.If there is communication failure, perform step S2.
S2, if there is communication failure between indoor set and off-premises station, then off-premises station transfers running time last time of the compressor of air-conditioner operational mode last time and air-conditioner.
Particularly, when judging communication failure occurs between indoor set and off-premises station, namely indoor set and off-premises station normally can not receive relevant information each other, then off-premises station can transfer running time last time of air-conditioner operational mode last time and compressor, such as off-premises station reads running time last time and the operational mode of the compressor of record in the EEPROM (Electrically Erasable Programmable Read-OnlyMemory, EEPROM) of air-conditioner.
S3, off-premises station is according to operational mode and determined follow-up operational mode running time last time last time.
Wherein, follow-up operational mode can think that off-premises station is about to the pattern run.Particularly, in one embodiment of the invention, if compressor is more than or equal to the first Preset Time running time last time, then illustrate that the operational mode judged last time is effective, this does not need to carry out patterns of change, then off-premises station runs with operational mode last time, and namely off-premises station controls compressor with operational mode operation last time.Otherwise, if compressor is less than the first Preset Time running time last time, then off-premises station is to run with the counteractive operational mode of operational mode last time, and preserve operational mode, the new operational mode being about to determine is carried out preserving and is such as recorded in the EEPROM of air-conditioner, wherein, the first Preset Time is relevant with the temperature changing speed of the evaporimeter of air-conditioner, is generally greater than 10 minutes.Such as, if last time, operational mode was refrigeration mode, then off-premises station runs with heating mode; If last time, operational mode was heating mode, then off-premises station runs in a chiller mode.
S4, off-premises station runs according to the follow-up operational mode determined.
Particularly, off-premises station is according to air-conditioner running time last time with after last time, operational mode determined follow-up operational mode, and off-premises station runs according to the follow-up operational mode determined, wherein, off-premises station, according to current outdoor environment temperature, selects suitable FREQUENCY CONTROL compressor operating.That is, the control method of the air-conditioner of the embodiment of the present invention, when indoor set and off-premises station generation communication failure, air-conditioner can be kept to proceed work, compressor operating frequency can by off-premises station from main control, and off-premises station carries out the control of compressor operating natural frequency reliability automatically according to the environment temperature of outdoor, delivery temperature, condenser temperature, electric current, information of voltage.
In addition, in one embodiment of the invention, if there is communication failure between indoor set and off-premises station, indoor set can carry out communication failure prompting, such as, carry out display failure code by display screen and point out, or carry out acousto-optic hint.And then user sees or after port presentation information, can report for repairment, air-conditioner can also proceed to run with the basic need meeting user simultaneously.
In reality, air-conditioning system comprises air-conditioning surface structure part, coolant circulating system, automatically controlled control system, communication link wiring.Such as shown in Figure 3, be the connection plane of the automatically controlled control system of air-conditioner.The outdoor drive plate 107 that wherein in automatically controlled control system, indoor set 100 comprises display board 101, indoor drive plate 102 and off-premises station 106 is formed.The groundwork process of air-conditioning system is: after display board 101 receives the starting-up signal of remote controller, control signal is passed to indoor drive plate 102, indoor drive plate 102, communication S line, zero line N and outdoor drive plate 107 form current ring communication unit, the information of indoor set is passed to outdoor drive plate 107 by current ring communication unit by indoor drive plate 102, and drive compressor to open by outdoor drive plate 107, in like manner, information is passed to indoor drive plate 102 by current ring communication unit by outdoor drive plate 107, indoor drive plate 102 is according to outdoor informational, carry out frequency adjustment.
In one particular embodiment of the present invention, as shown in Figure 4, the control method of the air-conditioner of the embodiment of the present invention specifically comprises:
S401, air-conditioner powers on start.
After air-conditioner start, indoor drive plate 102 communicates with outdoor drive plate 107.
S402, whether indoor set and off-premises station detect respectively and communicate successfully.
If indoor set communicates successfully with off-premises station, then perform step S403, if indoor set and off-premises station generation communication failure, perform step S404.
S403, air-conditioner normally runs.
S404, whether communication failure is greater than Preset Time detection time.
In order to reduce erroneous judgement operation, judge whether communication failure grows Preset Time such as 1 minute detection time, if indoor set and off-premises station carry out the communication check time be greater than Preset Time further, then indoor set and off-premises station generation communication failure, perform step S405, otherwise, return step S402.
S405, air-conditioner enters communication failure tupe.
S406, air-conditioner normally runs with communication failure pattern.
Namely air-conditioner runs according to processing procedure when above-mentioned indoor set and off-premises station generation communication failure.
S407, carries out fault cues.
Air conditioner room unit carries out fault cues, and user can report for repairment.While air-conditioner continues to run, wait for the maintenance of personnel after sale.
Indoor set and off-premises station communication failure, off-premises station can run with determined follow-up operational mode from main control compressor, can the operational mode follow-up to off-premises station judge, particularly, in one embodiment of the invention, indoor set can judge according to the temperature changing trend of the evaporimeter of air-conditioner the operational mode that off-premises station is follow-up, be understandable that, according to air-conditioner cooling and warming principle, if the variations in temperature of such as evaporimeter is downward trend, then indoor set judges that off-premises station runs in a chiller mode; If the variations in temperature of evaporimeter is ascendant trend, then indoor set judges that off-premises station runs with heating mode.And then off-premises station can run according to the operational mode of user's setting, particularly, indoor set judges that whether the follow-up operational mode of off-premises station is consistent with the set model of the remote controller of air-conditioner, when the follow-up operational mode of off-premises station and the set model of remote controller inconsistent time, namely the operational mode that sets of the operational mode of off-premises station and user is inconsistent, then indoor set is electric under controlling off-premises station, and return step S1 and carry out communication check, if the operational mode of off-premises station is consistent with the operational mode that user sets, air-conditioner is kept to continue to run, then air-conditioner can continue to run according to user's set model.That is, if operational mode correct judgment, then off-premises station keeps present mode of operation, if operational mode is not right, then cut off off-premises station power supply, again control off-premises station and power on after waiting for certain hour, off-premises station is according to the operational mode and running time of compressor last time in the such as EEPROM preserved in air-conditioner, this operational mode of autonomous decision, iterative cycles.
Further; when the follow-up operational mode of off-premises station is consistent with the set model of remote controller; namely after operational mode correct judgment; in the running of air-conditioner; if indoor set or off-premises station occur that protection is shut down; or off-premises station meets limit condition frequently, and corresponding action made by air-conditioner.In one embodiment of the invention, the control method of above-mentioned air-conditioner also comprises: judge indoor set whether break down or indoor load parameter whether in preset range, if indoor set breaks down or indoor load running parameter not in preset range, then indoor set control room internal burden is out of service, and electricity is out of service to control compressor under controlling off-premises station, indoor set remove fault or indoor load parameter in preset range time, indoor set controls off-premises station and powers on to control compressor operating.Particularly, if indoor set occurs that protection is shut down the too high or too low for temperature of such as evaporimeter and reached temperature threshold, need to carry out stoppage protection, then indoor set directly cuts off off-premises station power supply, after fault or stoppage protection contact, re-starts startup.
Further, in one embodiment of the invention, if indoor set does not break down or indoor load parameter in preset range, the control method of above-mentioned air-conditioner can also comprise: judge whether off-premises station breaks down or whether outdoor load running parameter meets service requirement, if off-premises station breaks down or outdoor load running parameter does not meet service requirement, then outside control room, load is out of service, after off-premises station removes fault or outdoor load parameter meets service requirement, load running outside control room.Particularly, if off-premises station breaks down or protects shutdown, then directly control compressor out of service, after fault or stoppage protection releasing, restart compressor, operational mode remains unchanged.
In addition, in one embodiment of the invention, if off-premises station does not break down or outdoor load running parameter meets service requirement, also comprise: judge whether outdoor load running parameter meets limit condition frequently, if outdoor load running parameter meets limit condition frequently, then off-premises station control compressor limit is run frequently.Particularly, if the protection that the limits such as environment temperature, delivery temperature, condenser temperature, electric current, voltage are frequently relevant appears in off-premises station, off-premises station carries out limit process frequently according to function rule, reduces running frequency, ensures air-conditioner operational reliability.
In one embodiment of the invention; after above-mentioned fault or protecting control have judged; air-conditioner runs according to deterministic model; enter the compressor operating time record stage, the running time of recording compressed machine, if compressor operating time is greater than the second Preset Time such as 10 minutes; then being carried out preserving running time is such as stored in the EEPROM of air-conditioner; to carry out next time using when operational mode judges, wherein, the second Preset Time is less than the first Preset Time.
The control method of the air-conditioner of the embodiment of the present invention in sum, in one particular embodiment of the present invention, as shown in Figure 5, the control procedure of air-conditioner comprises:
S500, communication failure, cuts off off-premises station power supply.
If indoor set and off-premises station carry out communication check, produce communication failure, then indoor set cuts off off-premises station power supply.
S501, judges whether off-premises station power-off time T1 is greater than time N1.
If so, then perform step S502, otherwise return step S500.
S502, off-premises station powers on, and off-premises station rejudges fault.
When indoor set cuts off after off-premises station power supply T is greater than N1 such as 2 minutes, control off-premises station and power on, and wait for that off-premises station communication failure judges.
S503, judges whether communication failure time T2 is greater than time N2.
Such as, if communication failure time T2 is greater than N2, then enters communication failure operational mode and judge, namely enter step S504, otherwise return step S502.
S504, to read in EEPROM operation information last time.
Last time operation information can comprise compressor running time last time and last time operational mode.
S505, judges whether compressor running time T last time 3 is greater than time N3.
Such as judge whether be greater than N3 running time last time such as 12 minutes, N3 is relevant with the pace of change of evaporator temperature, is generally greater than 10 minutes, if so, then enters step S506, otherwise enters step S507.
S506, keeps operational mode last time.
Namely air-conditioner keeps operational mode continuation last time to run, and enters step S511.
S507, judges last time, whether operational mode was heating mode.
If so, then enter step S508, otherwise enter step S509.
S508, running refrigerating pattern.
If namely ran heating mode last time, then this attempted running refrigerating pattern, and entered step S510.
S509, runs heating mode.
Namely last time running refrigerating pattern, then this attempts running heating mode, and enters step S510.
S510, records new pattern in EEPROM.
And enter step S511.
S511, opens compressor even load.
S512, delay time T4, wait for evaporator temperature change.
After compressor is opened, delay time T4, wherein, T4 is relevant with the pace of change of evaporator temperature, is generally greater than 5 minutes, waits for evaporator temperature change.
S513, judges whether evaporator temperature rises.
If so, then off-premises station just opens heating mode, then enter step S515 and remote controller set model compares, otherwise off-premises station just opens refrigeration mode, then enter step S514 and remote controller set model compares.
S514, judges whether remote controller sets refrigeration mode.
If so, step S517 is entered, otherwise, pattern-Fault is described, enters step S516.
S515, judges whether remote controller sets heating mode.
If so, then enter step S517 and carry out indoor set protection judgement, otherwise, mode decision mistake is described, then enters step S516.
S516, stops indoor set load, cuts off off-premises station power supply.
And return step S501 and re-start judgement.
S517, judges whether indoor set breaks down or protect shutdown.
If so, then enter step S522, otherwise indoor set fault-free or protection are shut down, then enter step S518.
S518, fault or protection are shut down to judge off-premises station.
If so, then enter step S523, otherwise off-premises station is passed away and is hindered or need protection to shut down, then enter step S519.
S519, judges whether off-premises station meets limit condition frequently.
If off-premises station meets limit condition frequently, then carry out limit process frequently, enter step S524, otherwise enter step S520.
S520, recording compressed machine running time, judges whether running time is greater than time N4.
After step S517-S519 protecting control has judged, enter the operating time log stage, if be greater than time N4 the running time of compressor, then entered step S521, otherwise terminated.
S521, is recorded to compressor operating time in EEPROM.
Running time is stored in the EEPROM of air-conditioner, so that use when carrying out mode decision next time.
S522, stops indoor set load, cuts off off-premises station power supply, restarts after trouble shooting.
S523, stops outdoor load, reopens after trouble shooting.
S524, reduces compressor operating frequency.
In sum, the control method of the air-conditioner of the embodiment of the present invention, under the prerequisite ensureing air-conditioner safety, when indoor set and off-premises station generation communication failure, off-premises station is by transferring air-conditioner operational mode last time and compressor running time last time, and then with Fault Control rule according to last time operational mode and effectively control running time air-conditioner continue run, that is, when indoor set and the off-premises station generation communication failure of air-conditioner, air-conditioner still can continue to run, and ensures the comfort of user.For after-sales service is raced against time, reduce the pressure of after-sales service personnel, thus reduce the complaint of user, improve the satisfaction of user.In addition, can be guaranteed to keep in good repair by reminding user in time by communication failure prompting.Indoor set can judge off-premises station operational mode by the temperature changing trend of evaporimeter and then judge whether consistent with the design temperature of air-conditioner, thus can control the operational mode that air-conditioner sets with user and run.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
Claims (10)
1. a control method for air-conditioner, is characterized in that, air-conditioner comprises indoor set and off-premises station, and described indoor set communicates with described off-premises station, and described control method comprises the following steps:
After described air-conditioner powers on, described indoor set and described off-premises station carry out communication check respectively;
If there is communication failure between described indoor set and described off-premises station, then described off-premises station transfers running time last time of the compressor of described air-conditioner operational mode last time and described air-conditioner;
Described off-premises station is according to operational mode and determined follow-up operational mode running time last time described last time; And
Described off-premises station runs according to the described follow-up operational mode determined.
2. the control method of air-conditioner as claimed in claim 1, is characterized in that, also comprise:
If there is communication failure between described indoor set and described off-premises station, described indoor set carries out communication failure prompting.
3. the control method of air-conditioner as claimed in claim 1, is characterized in that, described off-premises station, according to operational mode and determine follow-up operational mode running time described last time, specifically comprises:
If described running time last time is more than or equal to the first Preset Time, then described off-premises station is with described operational mode operation last time; Otherwise
If described running time last time is less than described first Preset Time, then described off-premises station is to run with the counteractive operational mode of described operational mode last time, and preserves this operational mode.
4. the control method of air-conditioner as claimed in claim 3, it is characterized in that, if be less than described first Preset Time described running time last time, then described off-premises station is to run with the counteractive operational mode of described operational mode last time, specifically comprises:
If described last time, operational mode was refrigeration mode, then described off-premises station ran with heating mode;
If described last time, operational mode was heating mode, then described off-premises station ran in a chiller mode.
5. the control method of air-conditioner as claimed in claim 3, it is characterized in that, described control method also comprises:
Described indoor set judges described follow-up operational mode according to the temperature changing trend of the evaporimeter of described air-conditioner;
Described indoor set judges that whether described follow-up operational mode is consistent with the set model of the remote controller of described air-conditioner; And
When the set model of described follow-up operational mode and described remote controller is inconsistent, described indoor set controls electricity under described off-premises station.
6. the control method of air-conditioner as claimed in claim 5, it is characterized in that, described indoor set judges the present mode of operation of described off-premises station according to the temperature changing trend of the evaporimeter of described air-conditioner, specifically comprises:
If the variations in temperature of described evaporimeter is downward trend, then described indoor set judges that described off-premises station runs in a chiller mode;
If the variations in temperature of described evaporimeter is ascendant trend, then described indoor set judges that described off-premises station runs with heating mode.
7. the control method of air-conditioner as claimed in claim 5, it is characterized in that, when described follow-up operational mode is consistent with the set model of described remote controller, described control method also comprises:
Judge described indoor set whether break down or described indoor load parameter whether in preset range;
If described indoor set breaks down or described indoor load running parameter not in described preset range, then to control described indoor load out of service for described indoor set, and under controlling described off-premises station, electricity is out of service to control described compressor; And
Described indoor set remove fault or described indoor load parameter in described preset range time, described indoor set controls described off-premises station and powers on to control described compressor operating.
8. the control method of air-conditioner as claimed in claim 7, is characterized in that, if described indoor set does not break down or described indoor load parameter in described preset range, also comprise:
Judge whether described off-premises station breaks down or whether described outdoor load running parameter meets service requirement;
If described off-premises station breaks down or described outdoor load running parameter does not meet service requirement, then control described outdoor load out of service; And
After described off-premises station removes fault or described outdoor load parameter meets described service requirement, control described outdoor load running.
9. the control method of air-conditioner as claimed in claim 8, is characterized in that, if described off-premises station does not break down or described outdoor load running parameter meets service requirement, also comprise:
Judge whether described outdoor load running parameter meets limit condition frequently;
If the satisfied limit of described outdoor load running parameter condition frequently, then described off-premises station controls the operation frequently of described compressor limit.
10. the control method of air-conditioner as claimed in claim 9, is characterized in that, also comprise:
Record the running time of described compressor;
If described compressor operating time is greater than the second Preset Time, then preserved described running time, wherein, described second Preset Time is less than described first Preset Time.
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