CN105066332A - Outdoor unit control method and device - Google Patents
Outdoor unit control method and device Download PDFInfo
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- CN105066332A CN105066332A CN201510432335.5A CN201510432335A CN105066332A CN 105066332 A CN105066332 A CN 105066332A CN 201510432335 A CN201510432335 A CN 201510432335A CN 105066332 A CN105066332 A CN 105066332A
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- Prior art keywords
- cross valve
- control signal
- temperature
- premises station
- indoor set
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
The invention discloses an outdoor unit control method and device. The outdoor unit control method comprises the steps that an outdoor unit is controlled to be started to work according to a control signal sent by an indoor unit; the types of four-way valves installed inside the outdoor unit are determined by detecting the temperature of a condenser in the outdoor unit, and the types of the four-way valves at least comprise a refrigerating four-way valve and a heating four-way valve; a four-way valve control signal matched with an operation mode is generated according to the determined types of the four-way valves and the operation mode of the indoor unit; the outdoor unit is controlled to work according to the generated four-way valve control signal. The technical problem that as an indoor unit outputs a control signal according to the default type of four-way valves, control goes wrong when the types of the four-way valves of an outdoor unit are not consistent with the default type of the four-way valves in the prior art is solved.
Description
Technical field
The present invention relates to field of air conditioner control, in particular to a kind of off-premises station control method and device.
Background technology
Cross valve is indispensable parts in air-conditioner, by controlling cross valve energising or no power, can control the mode of communicating that cross valve internal pipeline is different, and then making the air-conditioner set having installed this cross valve work in refrigeration mode or heating mode.According to cross valve, powered/not powered and air-conditioner set works in the corresponding relation between refrigeration mode/heating mode, cross valve can comprise two types: heat cross valve and refrigeration cross valve, wherein, being in heating mode when heating cross valve to air-conditioner set during electricity, not being in refrigeration mode to air-conditioner set during electricity when heating cross valve; When freezing, cross valve is in refrigeration mode to air-conditioner set during electricity, and when freezing, cross valve is not in heating mode to air-conditioner set during electricity.The type of the cross valve that different geographic areas is preferably different.Such as, with freeze for primary operating mode country adopt heat cross valve, and based on the country heated adopt be refrigeration cross valve, its objective is reduce to cross valve give electronic work, reach reduction its fault rate effect.
What indoor set and off-premises station generally adopted is that 24V control signal is connected.When air-conditioner set works, indoor set receives operational mode and the temperature of user's setting, and then indoor set controller, such as temperature controller, the control signal of 24V can be exported to off-premises station, such as compressor control signal, exogenous wind machine control signal and cross valve control signal according to the foregoing of user preset.After off-premises station receives above-mentioned control signal, according to above-mentioned control signal startup optimization.But above-mentioned control must have a prerequisite, that is: about the type of cross valve in off-premises station, indoor set controller and outdoor controller must unifications in advance.But, in correlation technique, normally according to market custom, indoor set controller and outdoor controller are unified in advance, the i.e. usual difference according to sales territory, the type of corresponding cross valve is installed in off-premises station, and in indoor set the type of this cross valve of default setting, make indoor set send cross valve control signal according to the type of the cross valve of acquiescence.But, when installing two type cross valves in the type error giving tacit consent to cross valve in the type changing cross valve in off-premises station or indoor set or off-premises station, indoor set possibly cannot carry out correct control to the cross valve in off-premises station, makes unit operation abnormal.
For above-mentioned problem, at present effective solution is not yet proposed.
Summary of the invention
Embodiments provide a kind of off-premises station control method and device, export control signal at least to solve indoor set controller in correlation technique according to the type of the cross valve of acquiescence, and wrong technical problem is made in the type of the cross valve when off-premises station caused and the inconsistent time control of indoor set default type.
According to an aspect of the embodiment of the present invention, provide a kind of off-premises station control method, comprising: control the control signal startup work that off-premises station is sent according to indoor set; By detecting the temperature of condenser in off-premises station, determine the type of the cross valve installed in off-premises station, wherein, the type of cross valve at least comprises: refrigeration cross valve and heat cross valve; According to the type of the cross valve determined and the operational mode of indoor set, generate the cross valve control signal of mating with operational mode; Control off-premises station according to the cross valve control signal work generated.
Further, by detecting the temperature of condenser in off-premises station, determine that the type of the cross valve installed in off-premises station comprises: the first temperature and the second temperature that detect condenser in off-premises station, wherein, first temperature is the temperature of off-premises station startup work preset duration post-condenser, and the second temperature is the temperature of condenser before off-premises station startup work; Comparison obtains the magnitude relationship of the first temperature and the second temperature; The control signal sent according to indoor set and magnitude relationship, judge the type of cross valve in off-premises station.
Further, the control signal that indoor set is sent comprises the first cross valve control signal, wherein, the control signal sent according to indoor set and magnitude relationship, judge that in off-premises station, the type of cross valve comprises: when the first cross valve control signal is high level and the first temperature is greater than the second temperature, judge that cross valve is as refrigeration cross valve; When the first cross valve control signal is high level and the first temperature is not more than the second temperature, judge that cross valve is as heating cross valve; When the first cross valve control signal is zero level and the first temperature is greater than the second temperature, judge that cross valve is as heating cross valve; When the first cross valve control signal is zero level and the first temperature is not more than the second temperature, judge that cross valve is as refrigeration cross valve.
Further, according to the type of the cross valve determined and the operational mode of indoor set, generate the cross valve control signal of mating with operational mode to comprise: when determine cross valve be heat cross valve and the operational mode of indoor set is refrigeration mode time, the cross valve control signal of generation zero level; When determine cross valve be heat cross valve and the operational mode of indoor set is heating mode time, generate the cross valve control signal of high level; When determining that cross valve is heat cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, generates the cross valve control signal of zero level; When determining that cross valve is refrigeration cross valve and the operational mode of indoor set is refrigeration mode, generate the cross valve control signal of high level; When determining that cross valve is refrigeration cross valve and the operational mode of indoor set is heating mode, generate the cross valve control signal of zero level; When determining that cross valve is refrigeration cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, generates the cross valve control signal of high level.
Further, in the temperature by detecting condenser in described off-premises station, after determining the type of the cross valve installed in described off-premises station, method also comprises: the type storing the cross valve got.
Further, before the control signal startup work that control off-premises station sends according to indoor set, method also comprises: judge whether prestored the type of cross valve in off-premises station; When having prestored the type of cross valve in off-premises station, directly perform according to the type of the cross valve determined and the operational mode of indoor set, generate the step of the cross valve control signal of mating with operational mode.
According to the another aspect of the embodiment of the present invention, additionally provide a kind of off-premises station control device, comprising: the first control module, for controlling the control signal startup work that off-premises station is sent according to indoor set; Processing module, for the temperature by detecting condenser in off-premises station, determine the type of the cross valve installed in off-premises station, wherein, the type of cross valve at least comprises: refrigeration cross valve and heat cross valve; Generation module, for according to the type of the cross valve determined and the operational mode of indoor set, generates the cross valve control signal of mating with operational mode; Second control module, for controlling off-premises station according to the cross valve control signal work generated.
Further, processing module comprises: detecting unit, for detecting the first temperature and second temperature of condenser in off-premises station, wherein, first temperature is the temperature of off-premises station startup work preset duration post-condenser, and the second temperature is the temperature of condenser before off-premises station startup work; Comparing unit, obtains the magnitude relationship of the first temperature and the second temperature for comparison; Judging unit, for the control signal sent according to indoor set and magnitude relationship, judges the type of cross valve in off-premises station.
Further, the control signal that indoor set is sent comprises the first cross valve control signal, and wherein, judging unit comprises: the first judgment sub-unit, for when the first cross valve control signal is high level and the first temperature is greater than the second temperature, judge that cross valve is as refrigeration cross valve; Second judgment sub-unit, for when the first cross valve control signal is high level and the first temperature is not more than the second temperature, judges that cross valve is as heating cross valve; 3rd judgment sub-unit, for when the first cross valve control signal is zero level and the first temperature is greater than the second temperature, judges that cross valve is as heating cross valve; 4th judgment sub-unit, for when the first cross valve control signal is zero level and the first temperature is not more than the second temperature, judges that cross valve is as refrigeration cross valve.
Further, generation module comprises: first generate subelement, for when determine cross valve be heat cross valve and the operational mode of indoor set is refrigeration mode time, generation zero level cross valve control signal; Second generate subelement, for when determine cross valve be heat cross valve and the operational mode of indoor set is heating mode time, generation high level cross valve control signal; 3rd generates subelement, for when determining that cross valve is heat cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, the cross valve control signal of generation zero level; 4th generate subelement, for when determine cross valve be refrigeration cross valve and the operational mode of indoor set be refrigeration mode time, generation high level cross valve control signal; 5th generate subelement, for when determine cross valve be refrigeration cross valve and the operational mode of indoor set be heating mode time, generation zero level cross valve control signal; 6th generates subelement, for when determining that cross valve is refrigeration cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, the cross valve control signal of generation high level.
Further, device also comprises: memory module, for storing the type of the cross valve got.
Further, device also comprises: judge module, whether has prestored the type of cross valve for judging in off-premises station; 3rd control module, in off-premises station, prestore cross valve type, directly perform the function of generation module.
In embodiments of the present invention, adopt the mode controlling the control signal startup work that off-premises station is sent according to indoor set, by detecting the temperature of condenser in off-premises station, determine the type of the cross valve installed in off-premises station, wherein, the type of cross valve at least comprises: refrigeration cross valve and heat cross valve, reach the operational mode of type according to the cross valve determined and indoor set, generate the object of the cross valve control signal of mating with operational mode, thus achieve the technique effect of control off-premises station according to the work of cross valve control signal, and then solve indoor set controller in correlation technique and export control signal according to the type of the cross valve of acquiescence, and wrong technical problem is made in the type of the cross valve when off-premises station caused and the inconsistent time control of indoor set default type.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the off-premises station control method according to the embodiment of the present invention one;
Fig. 2 is the air-conditioning system structural representation according to the embodiment of the present invention one;
Fig. 3 is the flow chart of a kind of optional off-premises station control method according to the embodiment of the present invention one; And
Fig. 4 is the structural representation of the off-premises station control device according to the embodiment of the present invention two.
Detailed description of the invention
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in description of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiment one
According to the embodiment of the present invention, provide a kind of embodiment of the method for off-premises station control method, it should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Fig. 1 is the off-premises station control method according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:
Step S102, controls the control signal startup work that off-premises station is sent according to indoor set;
State on the invention in step S102, in indoor set, acquiescence has cross valve type, indoor set according to acquiescence cross valve type send control signal to off-premises station, the control signal that indoor set sends can comprise following any one: compressor control signal, exogenous wind machine control signal, cross valve control signal.
Step S104, by detecting the temperature of condenser in off-premises station, determine the type of the cross valve installed in off-premises station, wherein, the type of cross valve at least comprises: refrigeration cross valve and heat cross valve;
State on the invention in step S104, condenser is the parts of refrigeration system, for the refrigerant in condensation air-conditioner.Cross valve is installed in off-premises station, is indispensable parts in refrigeration plant, for giving electricity and not circulating to making unit be formed respectively under electric two states to heat and freeze two.According to the type of cross valve, if cross valve is for heating cross valve when giving electricity, unit heats, if cross valve is refrigeration cross valve, unit freezes; If cross valve is for heating cross valve when not giving electricity, unit freezes, if cross valve is refrigeration cross valve, unit heats.Voltage for the control signal of cross valve in whether cross valve can send to electricity control signal by indoor set judges.When after execution step S102, compressor in off-premises station, cross valve, blower fan are all according to the control signal work that indoor set sends, according to refrigeration principle, after compressor operating a period of time, if air-conditioner set works in heating mode, so in off-premises station, the temperature of condenser can reduce, if air-conditioner set works in refrigeration mode, so in off-premises station, the temperature of condenser can raise.So whether give electricity according to the temperature of condenser and cross valve, the type of cross valve can be obtained.
Step S106, according to the type of the cross valve determined and the operational mode of indoor set, generates the cross valve control signal of mating with operational mode;
State on the invention in step S106, the operational mode such as refrigeration mode and heating mode of indoor set, the signal that the operational mode of indoor set can issue off-premises station by indoor set is determined.When the cross valve Type-Inconsistencies of actual installation in the cross valve type given tacit consent in indoor set and off-premises station, the control effects of the cross valve control signal that indoor set sends does not mate with indoor set actual motion pattern, therefore, after determining the cross valve type of installing in off-premises station, outdoor controller can generate cross valve control signal according to the type of the operational mode of indoor set and off-premises station cross valve.
Step S108, controls off-premises station according to the cross valve control signal work generated.
State on the invention in step S108, by controlling off-premises station according to the cross valve control signal work generated, the effect of cross valve real work generation in off-premises station and operational mode being matched, and then ensure that the normal operation of air-conditioning system.
By above-mentioned steps S102 to step S108, off-premises station temporarily ignores operational mode, to make in off-premises station load directly according to the control signal work that indoor set sends, and by detecting the temperature of off-premises station work a period of time post-condenser, judge the type of the cross valve installed in off-premises station, achieve the cross valve type according to judging to obtain, regenerate cross valve control signal, cross valve control signal and indoor set operational mode are matched, solves when indoor set and off-premises station make wrong problem about the time control that is not consistent of cross valve type.
In embodiments of the present invention, adopt the mode controlling the control signal startup work that off-premises station is sent according to indoor set, by detecting the temperature of condenser in off-premises station, determine the type of the cross valve installed in off-premises station, wherein, the type of cross valve at least comprises: refrigeration cross valve and heat cross valve, reach the operational mode of type according to the cross valve determined and indoor set, generate the object of the cross valve control signal of mating with operational mode, thus achieve the technique effect of control off-premises station according to the cross valve control signal work generated, and then solve indoor set controller in correlation technique and export control signal according to the type of the cross valve of acquiescence, and wrong technical problem is made in the type of the cross valve when off-premises station caused and the inconsistent time control of indoor set default type.Reach and make outer machine controller when not knowing that interior machine controller gives tacit consent to the type of which kind of cross valve, still can carry out the correct technique effect controlled according to the control signal of interior machine controller to cross valve, improve the compatibility of the internal machine control method of outer machine.
Alternatively, step S104: by detecting the temperature of condenser in off-premises station, determine that the type of the cross valve installed in off-premises station comprises:
Step S1042: the first temperature and the second temperature that detect condenser in off-premises station, wherein, the first temperature is the temperature of off-premises station startup work preset duration post-condenser, and the second temperature is the temperature of condenser before off-premises station startup work;
State on the invention in step S1042, the temperature of condenser can be detected by the temperature-sensitive bag be installed in off-premises station or temperature sensor.Preset duration is optionally 3min, it should be noted that herein, the time length of preset duration is suitable to be suitable for, and preset duration is too short may occur that system temperature is not set up and the erroneous judgement that causes, oversize when presetting, and may affect the operation of air-conditioning system subsequent logic.
Step S1044: comparison obtains the magnitude relationship of the first temperature and the second temperature;
Step S1046: the control signal sent according to indoor set and magnitude relationship, judges the type of cross valve in off-premises station.
State on the invention in step S1046, the magnitude relationship of the first temperature and the second temperature, the first temperature can be comprised and be greater than the second temperature and the first temperature is not more than the second temperature.According to refrigeration principle, after compressor operating a period of time, if air-conditioner set works in heating mode, so the magnitude relationship of the first temperature and the second temperature can be: the first temperature is not more than the second temperature; If air-conditioner set works in refrigeration mode, so the magnitude relationship of the first temperature and the second temperature can be: the first temperature is greater than the second temperature.At least contain cross valve control signal in the control signal that indoor set is sent, the cross valve control signal sent according to indoor set and the magnitude relationship of the first temperature and the second temperature, can obtain the type of cross valve.
A kind of temperature by detecting condenser in off-premises station is provided by above-mentioned steps S1042 to step S1046, determine the method for the type of the cross valve installed in off-premises station, by detecting the first temperature and the second temperature, and the magnitude relationship of the control signal sent according to indoor set and the first temperature and the second temperature, judge the type of cross valve.
Alternatively, the control signal that indoor set is sent comprises the first cross valve control signal, and wherein, step S1046: the control signal sent according to indoor set and magnitude relationship, judges that in off-premises station, the type of cross valve comprises:
Step S1046a: when the first cross valve control signal is high level and the first temperature is greater than the second temperature, judges that cross valve is as refrigeration cross valve;
Step S1046b: when the first cross valve control signal is high level and the first temperature is not more than the second temperature, judges that cross valve is as heating cross valve;
Step S1046c: when the first cross valve control signal is zero level and the first temperature is greater than the second temperature, judges that cross valve is as heating cross valve;
Step S1046d: when the first cross valve control signal is zero level and the first temperature is not more than the second temperature, judges that cross valve is as refrigeration cross valve.
A kind of control signal of sending according to indoor set and magnitude relationship is provided by above-mentioned steps S1046a to step S1046d, judge the method for the type of cross valve in off-premises station, by judging that the first cross valve control signal that indoor set is sent is high level or low level, judge that whether cross valve is to electricity in preset period of time, and then according to preset period of time inner condenser temperature, determine the type of cross valve.Can say, above-mentioned steps S1046a to step S1046d establishes cross valve control signal level, corresponding relation between condenser temperature variation tendency and cross valve type.Can this corresponding relation be pre-stored within outdoor controller, can query manipulation be performed when needed.
Alternatively, step S106: according to the type of the cross valve determined and the operational mode of indoor set, generates the cross valve control signal of mating with operational mode and comprises:
Step S106a: when determine cross valve be heat cross valve and the operational mode of indoor set is refrigeration mode time, generate the cross valve control signal of zero level;
Step S106b: when determine cross valve be heat cross valve and the operational mode of indoor set is heating mode time, generate the cross valve control signal of high level;
Step S106c: when determining that cross valve is heat cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, generates the cross valve control signal of zero level;
Step S106d: when determining that cross valve is refrigeration cross valve and the operational mode of indoor set is refrigeration mode, generate the cross valve control signal of high level;
Step S106e: when determining that cross valve is refrigeration cross valve and the operational mode of indoor set is heating mode, generate the cross valve control signal of zero level;
Step S106f: when determining that cross valve is refrigeration cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, generates the cross valve control signal of high level.
Providing a kind of type of the cross valve according to determining and the operational mode of indoor set by above-mentioned steps S106a to step S106f, generating the method for the cross valve control signal of mating with operational mode.Above-mentioned steps establishes the corresponding relation between cross valve type, indoor set operational mode and the cross valve control signal level mated.Can this corresponding relation be pre-stored within outdoor controller, can query manipulation be performed when needed.
Alternatively, in step S104: according to cross valve control signal and magnitude relationship, after obtaining the type of cross valve in off-premises station, the off-premises station control method according to the embodiment of the present invention also comprises:
Step S105: the type storing the cross valve got.
According to the type of the cross valve that such scheme draws, remembered by off-premises station.The means stored have multiple, such as, the cross valve type got are stored in the internal memory of outer machine controller, or are stored in the storage chip that sets up, as IC24C02 chip-stored.As long as store content can identify cross valve type, such as, 0 expression heats, and 1 represents refrigeration.Again such as, 01 expression heats, and 10 represent refrigeration, and 00 and 11 can be used for identifying other running status whether changing cross valve or air-conditioning system.
Alternatively, in step S102: before controlling the control signal startup work that off-premises station sends according to indoor set, the off-premises station control method according to the embodiment of the present invention also comprises:
Step S1012: judge whether prestored the type of cross valve in off-premises station;
Step S1014: when having prestored the type of cross valve in off-premises station, directly performs according to the type of the cross valve determined and the operational mode of indoor set, generates the step of the cross valve control signal of mating with operational mode.
When off-premises station has the function of memory cross valve type, after off-premises station works on power again, can first perform the step judging the type whether having prestored cross valve in off-premises station, when judging not store cross valve in off-premises station, perform step S102 to step S108, when judging there is storage cross valve in off-premises station, perform step S106 and step S108.By above-mentioned steps S1012 and step S1014, achieve after judging cross valve type, when off-premises station works on power again, no longer repeat the step judging cross valve type, saved the resource of outdoor controller, improve control efficiency.
Fig. 2 is the air-conditioning system structural representation according to the embodiment of the present invention one; As shown in Figure 2, this air-conditioning system comprises indoor set and off-premises station, wherein, has indoor machine controller in indoor set, such as, temperature controller shown in Fig. 2; There is outdoor controller in off-premises station, and be installed on the compressor, blower fan, cross valve, condenser etc. in off-premises station.24V control signal can be adopted between indoor set with off-premises station to be connected.The workflow of this air-conditioning system also can as shown in Figure 2, and namely the pattern that sets according to user of temperature controller and design temperature, indoor temperature, export the compressor control signal of 24V, exogenous wind machine control signal and cross valve control signal and control outer machine.Outdoor controller receives compressor control signal, exogenous wind machine control signal and the cross valve control signal that indoor set is sent, and according to above-mentioned three control signals that indoor set sends, after control logic conversion by self, regenerate compressor control signal, exogenous wind machine control signal and cross valve control signal, be used for control load.In the optional application scenarios of the one of the embodiment of the present application, indoor set not direct control load, such as blower fan, compressor, cross valve etc.; But generate aforementioned three signals by off-premises station.And outdoor controller regenerates the condition of aforementioned three signals except the control signal of interior machine, also need the temperature detecting condenser, judged by the temperature of condenser.The concrete control flow of this system can be as shown in Figure 3.
Fig. 3 is the flow chart of a kind of optional off-premises station control method according to the embodiment of the present invention one; Shown in composition graphs 2 and Fig. 3, the flow process of off-premises station control method comprises as follows:
Steps A: after outer machine powers on, detects off-premises station condenser temperature T2.
Concrete, in above-mentioned steps A, detect condenser temperature by temperature sensor, outdoor controller receives the condenser temperature T2 detected;
Step B: judge whether to determine cross valve type.
Concrete, in above-mentioned steps B, by detecting the data judging to arrange in off-premises station whether to store appointment type in memory, such as, whether agreement storage area stores data 01 or 10, and wherein, 01 expression heats, and 10 represent refrigeration.When arranging storage area and there is appointment data, the type can determining cross valve can be thought, namely can determine that cross valve in off-premises station is for refrigeration cross valve or heat cross valve.
Step C: when judging in step B to can not determine cross valve type, detects the control signal that temperature controller exports, and controls off-premises station and runs according to the control signal of temperature controller.
Concrete, the control signal that temperature controller exports can comprise compressor control signal, exogenous wind machine control signal and cross valve control signal.
Step D: run after three minutes, detects off-premises station condenser temperature T1.
It should be noted that, three minutes is exemplary preset duration, is not limited in any way the present invention herein.
Step e: judge whether T1 is greater than T2.Namely after judging three minutes, the temperature of outdoor condenser rises or declines, and whether compressor operating post-condenser temperature is greater than the temperature of condenser before compressor operating in other words.
Step F: when judging that T1 is greater than T2 in step e, whether the cross valve control signal detecting temperature controller output is 24V.
Step G: when judging that T1 is not more than T2 in step e, whether the cross valve control signal detecting temperature controller output is 24V.
It should be noted that herein, in above-mentioned steps F and step G, when cross valve control signal is 24V, can be considered that cross valve control signal is high level, when cross valve control signal is not 24V, can be considered that cross valve control signal is zero level.
Step H: when detecting in step F that cross valve control signal is 24V, or when detecting cross valve control signal in step G not for 24V, judge that cross valve is as refrigeration cross valve.
Step I: when detecting cross valve control signal in step F not for 24V, or when detecting in step G that cross valve control signal is 24V, judge that cross valve is as heating cross valve.
Step J: store cross valve type.Concrete, different pieces of information can be used to identify different cross valve types.
Step K: according to operational mode and cross valve type, generates new cross valve control signal, controls off-premises station and works according to new cross valve control signal.
Concrete, in above-mentioned steps K, memory unit still heats cross valve for refrigeration cross valve, and after this operational mode and defrost logic all judge according to the cross valve state detected.If judge that cross valve is for heating cross valve, then control cross valve when operational mode is refrigeration mode and close, control cross valve when operational mode is heating mode and open, operational mode be heating mode and outer machine enters defrost pattern time control cross valve pass.If judge that cross valve is refrigeration cross valve, then control cross valve when operational mode is refrigeration mode and open, control cross valve when operational mode is heating mode and close, operational mode be heating mode and outer machine enters defrost pattern time control cross valve open.
The off-premises station control method provided by the embodiment of the present invention, according to refrigeration cross valve and heat cross valve unit refrigeration with under heating mode temperature controller output controller signals different, be judged as refrigeration cross valve in conjunction with the change of outdoor condenser temperature during just start and heat cross valve unit, like this by change control method, not increasing hardware cost can realize freezing cross valve and heat the outer machine controller of cross valve general, reduces the workload of design.
Embodiment two
According to the embodiment of the present invention, additionally provide a kind of device embodiment of off-premises station control device, this off-premises station control device is mainly used in the off-premises station control method that the execution embodiment of the present invention provides, and the off-premises station control method that the above embodiment of the present invention provides also can be performed by this off-premises station control device.Below concrete introduction is done to the off-premises station control device that the embodiment of the present invention provides, in the inventive method embodiment, carried out repeating no more of explanation.
Fig. 4 is the structural representation of the off-premises station control device according to the embodiment of the present invention two, as shown in Figure 4, the off-premises station control device according to the embodiment of the present invention comprises: the first control module 10, processing module 20, generation module 30 and the second control module 40, wherein:
First control module 10, for controlling the control signal startup work that off-premises station is sent according to indoor set;
Processing module 20, for the temperature by detecting condenser in off-premises station, determine the type of the cross valve installed in off-premises station, wherein, the type of cross valve at least comprises: refrigeration cross valve and heat cross valve;
Generation module 30, for according to the type of the cross valve determined and the operational mode of indoor set, generates the cross valve control signal of mating with operational mode;
Second control module 40, for controlling off-premises station according to the cross valve control signal work generated.
By above-mentioned first control module 10, processing module 20, generation module 30 and the second control module 40, adopt the mode controlling the control signal startup work that off-premises station is sent according to indoor set, by detecting the temperature of condenser in off-premises station, determine the type of the cross valve installed in off-premises station, wherein, the type of cross valve at least comprises: refrigeration cross valve and heat cross valve, reach the operational mode of type according to the cross valve determined and indoor set, generate the object of the cross valve control signal of mating with operational mode, thus achieve the technique effect of control off-premises station according to the cross valve control signal work generated, and then solve indoor set controller in correlation technique and export control signal according to the type of the cross valve of acquiescence, and wrong technical problem is made in the type of the cross valve when off-premises station caused and the inconsistent time control of indoor set default type.Reach and make outer machine controller when not knowing that interior machine controller gives tacit consent to the type of which kind of cross valve, still can carry out the correct technique effect controlled according to the control signal of interior machine controller to cross valve, improve the compatibility of the internal machine control method of outer machine.
Alternatively, processing module 20 comprises: detecting unit, comparing unit and judging unit, wherein:
Detecting unit, for detecting the first temperature and second temperature of condenser in off-premises station, wherein, the first temperature is the temperature of off-premises station startup work preset duration post-condenser, and the second temperature is the temperature of condenser before off-premises station startup work;
Comparing unit, obtains the magnitude relationship of the first temperature and the second temperature for comparison;
Judging unit, for the control signal sent according to indoor set and magnitude relationship, judges the type of cross valve in off-premises station.
By above-mentioned detecting unit, comparing unit and judging unit, provide a kind of temperature by detecting condenser in off-premises station, determine the technical scheme of the type of the cross valve installed in off-premises station, by detecting the first temperature and the second temperature, and the magnitude relationship of the control signal sent according to indoor set and the first temperature and the second temperature, judge the type of cross valve.
Alternatively, the control signal that indoor set is sent comprises the first cross valve control signal, and wherein, judging unit comprises: the first judgment sub-unit, the second judgment sub-unit, the 3rd judgment sub-unit and the 4th judgment sub-unit, wherein:
First judgment sub-unit, for when the first cross valve control signal is high level and the first temperature is greater than the second temperature, judges that cross valve is as refrigeration cross valve;
Second judgment sub-unit, for when the first cross valve control signal is high level and the first temperature is not more than the second temperature, judges that cross valve is as heating cross valve;
3rd judgment sub-unit, for when the first cross valve control signal is zero level and the first temperature is greater than the second temperature, judges that cross valve is as heating cross valve;
4th judgment sub-unit, for when the first cross valve control signal is zero level and the first temperature is not more than the second temperature, judges that cross valve is as refrigeration cross valve.
By above-mentioned first judgment sub-unit, second judgment sub-unit, 3rd judgment sub-unit and the 4th judgment sub-unit, by judging that the first cross valve control signal that indoor set is sent is high level or low level, judge that whether cross valve is to electricity in preset period of time, and then according to preset period of time inner condenser temperature, determine the type of cross valve.Can say, above-mentioned first judgment sub-unit, the second judgment sub-unit, the 3rd judgment sub-unit and the 4th judgment sub-unit establish cross valve control signal level, corresponding relation between condenser temperature variation tendency and cross valve type.Can this corresponding relation be pre-stored within outdoor controller, can query manipulation be performed when needed.
Further, generation module 30 comprises: first generates subelement, and second generates subelement, and the 3rd generates subelement, and the 4th generates subelement, and the 5th generates subelement and the 6th generates subelement, wherein:
First generate subelement, for when determine cross valve be heat cross valve and the operational mode of indoor set is refrigeration mode time, generation zero level cross valve control signal;
Second generate subelement, for when determine cross valve be heat cross valve and the operational mode of indoor set is heating mode time, generation high level cross valve control signal;
3rd generates subelement, for when determining that cross valve is heat cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, the cross valve control signal of generation zero level;
4th generate subelement, for when determine cross valve be refrigeration cross valve and the operational mode of indoor set be refrigeration mode time, generation high level cross valve control signal;
5th generate subelement, for when determine cross valve be refrigeration cross valve and the operational mode of indoor set be heating mode time, generation zero level cross valve control signal;
6th generates subelement, for when determining that cross valve is refrigeration cross valve and the operational mode of indoor set is heating mode and after off-premises station enters defrost pattern, the cross valve control signal of generation high level.
Alternatively, device also comprises: memory module, for storing the type of the cross valve got.
Alternatively, device also comprises: judge module, whether has prestored the type of cross valve for judging in off-premises station; 3rd control module, in off-premises station, prestore cross valve type, directly perform the function of generation module.
The off-premises station control device provided by the embodiment of the present invention, according to refrigeration cross valve and heat cross valve unit refrigeration with under heating mode temperature controller output controller signals different, be judged as refrigeration cross valve in conjunction with the change of outdoor condenser temperature during just start and heat cross valve unit, like this by change control method, not increasing hardware cost can realize freezing cross valve and heat the outer machine controller of cross valve general, reduces the workload of design.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
In several embodiments that the application provides, should be understood that, disclosed technology contents, the mode by other realizes.Wherein, device embodiment described above is only schematic, the such as division of described unit, can be that a kind of logic function divides, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the INDIRECT COUPLING of unit or module or communication connection can be electrical or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed on multiple unit.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprises all or part of step of some instructions in order to make a computer equipment (can be personal computer, server or the network equipment etc.) perform method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, read-only storage (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), portable hard drive, magnetic disc or CD etc. various can be program code stored medium.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. an off-premises station control method, is characterized in that, comprising:
Control the control signal startup work that off-premises station is sent according to indoor set;
By detecting the temperature of condenser in described off-premises station, determine the type of the cross valve installed in described off-premises station, wherein, the type of described cross valve at least comprises: refrigeration cross valve and heat cross valve;
According to the type of the described cross valve determined and the operational mode of described indoor set, generate the cross valve control signal of mating with described operational mode;
Control described off-premises station according to the described cross valve control signal work generated.
2. method according to claim 1, is characterized in that, by detecting the temperature of condenser in described off-premises station, determines that the type of the cross valve installed in described off-premises station comprises:
Detect the first temperature and second temperature of condenser in described off-premises station, wherein, described first temperature is the temperature of described condenser after described off-premises station startup work preset duration, and described second temperature is the temperature of described condenser before described off-premises station startup work;
Comparison obtains the magnitude relationship of described first temperature and described second temperature;
The control signal sent according to described indoor set and described magnitude relationship, judge the type of cross valve described in described off-premises station.
3. method according to claim 2, it is characterized in that, the control signal that described indoor set is sent comprises the first cross valve control signal, wherein, the control signal sent according to described indoor set and described magnitude relationship, judge that the type of cross valve described in described off-premises station comprises:
When described first cross valve control signal is high level and described first temperature is greater than described second temperature, judge that described cross valve is as described refrigeration cross valve;
When described first cross valve control signal is high level and described first temperature is not more than described second temperature, judge described cross valve for described in heat cross valve;
When described first cross valve control signal is zero level and described first temperature is greater than described second temperature, judge described cross valve for described in heat cross valve;
When described first cross valve control signal is zero level and described first temperature is not more than described second temperature, judge that described cross valve is as described refrigeration cross valve.
4. the method according to claims 1 to 3 any one, is characterized in that, according to the type of the described cross valve determined and the operational mode of described indoor set, generates the cross valve control signal of mating with described operational mode and comprises:
When determine described cross valve for described in heat cross valve and the operational mode of described indoor set is refrigeration mode time, generate the described cross valve control signal of zero level;
When determine described cross valve for described in heat cross valve and the operational mode of described indoor set is heating mode time, generate the described cross valve control signal of high level;
When determine described cross valve for described in heat cross valve and the operational mode of described indoor set is heating mode and after described off-premises station enters defrost pattern, generates the described cross valve control signal of zero level;
When determining that described cross valve is described refrigeration cross valve and the operational mode of described indoor set is refrigeration mode, generate the described cross valve control signal of high level;
When determining that described cross valve is described refrigeration cross valve and the operational mode of described indoor set is heating mode, generate the described cross valve control signal of zero level;
When determining that described cross valve is described refrigeration cross valve and the operational mode of described indoor set is heating mode and after described off-premises station enters defrost pattern, generates the described cross valve control signal of high level.
5. the method according to claims 1 to 3 any one, is characterized in that, in the temperature by detecting condenser in described off-premises station, after determining the type of the cross valve installed in described off-premises station, described method also comprises:
Store the type of the described cross valve got.
6. the method according to claims 1 to 3 any one, is characterized in that, before the described control signal startup work that control off-premises station sends according to described indoor set, described method also comprises:
Judge in described off-premises station, whether to have prestored the type of described cross valve;
When having prestored the type of described cross valve in described off-premises station, directly perform according to the type of the described cross valve determined and the operational mode of described indoor set, generate the step of the cross valve control signal of mating with described operational mode.
7. an off-premises station control device, is characterized in that, comprising:
First control module, for controlling the control signal startup work that off-premises station is sent according to indoor set;
Processing module, for the temperature by detecting condenser in described off-premises station, determine the type of the cross valve installed in described off-premises station, wherein, the type of described cross valve at least comprises: refrigeration cross valve and heat cross valve;
Generation module, for according to the type of the described cross valve determined and the operational mode of described indoor set, generates the cross valve control signal of mating with described operational mode;
Second control module, for controlling described off-premises station according to the described cross valve control signal work generated.
8. device according to claim 7, is characterized in that, described processing module comprises:
Detecting unit, for detecting the first temperature and second temperature of condenser in described off-premises station, wherein, described first temperature is the temperature of described condenser after described off-premises station startup work preset duration, and described second temperature is the temperature of described condenser before described off-premises station startup work;
Comparing unit, obtains the magnitude relationship of described first temperature and described second temperature for comparison;
Judging unit, for the control signal sent according to described indoor set and described magnitude relationship, judges the type of cross valve in described off-premises station.
9. device according to claim 8, is characterized in that, the control signal that described indoor set is sent comprises the first cross valve control signal, and wherein, described judging unit comprises:
First judgment sub-unit, for when described first cross valve control signal is high level and described first temperature is greater than described second temperature, judges that described cross valve is as described refrigeration cross valve;
Second judgment sub-unit, for when described first cross valve control signal is high level and described first temperature is not more than described second temperature, judge described cross valve for described in heat cross valve;
3rd judgment sub-unit, for when described first cross valve control signal is zero level and described first temperature is greater than described second temperature, judge described cross valve for described in heat cross valve;
4th judgment sub-unit, for when described first cross valve control signal is zero level and described first temperature is not more than described second temperature, judges that described cross valve is as described refrigeration cross valve.
10. according to the device in claim 7 to 9 described in any one, it is characterized in that, described generation module comprises:
First generate subelement, for when determine described cross valve for described in heat cross valve and the operational mode of described indoor set is refrigeration mode time, generation zero level described cross valve control signal;
Second generate subelement, for when determine described cross valve for described in heat cross valve and the operational mode of described indoor set is heating mode time, generation high level described cross valve control signal;
3rd generates subelement, for when determine described cross valve for described in heat cross valve and the operational mode of described indoor set is heating mode and after described off-premises station enters defrost pattern, the described cross valve control signal of generation zero level;
4th generates subelement, for when determining that described cross valve is described refrigeration cross valve and the operational mode of described indoor set is refrigeration mode, and the described cross valve control signal of generation high level;
5th generates subelement, for when determining that described cross valve is described refrigeration cross valve and the operational mode of described indoor set is heating mode, and the described cross valve control signal of generation zero level;
6th generates subelement, for when determining that described cross valve is described refrigeration cross valve and the operational mode of described indoor set is heating mode and after described off-premises station enters defrost pattern, the described cross valve control signal of generation high level.
11. devices according to claim 8, is characterized in that, described device also comprises:
Memory module, for storing the type of the described cross valve got.
12. devices according to claim 8, is characterized in that, described device also comprises:
Whether judge module, prestored the type of described cross valve for judging in described off-premises station;
3rd control module, in described off-premises station, prestore described cross valve type, directly perform the function of described generation module.
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