CN107255348B - Air conditioner electric quantity detection method based on single module and air conditioner - Google Patents
Air conditioner electric quantity detection method based on single module and air conditioner Download PDFInfo
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- CN107255348B CN107255348B CN201710494500.9A CN201710494500A CN107255348B CN 107255348 B CN107255348 B CN 107255348B CN 201710494500 A CN201710494500 A CN 201710494500A CN 107255348 B CN107255348 B CN 107255348B
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The air conditioner electric quantity detection method based on the single module comprises the steps that a data processing device receives a first input instruction comprising a power on/off signal; a second input command comprising a timing signal; the first input instruction and the second input instruction are correlated to determine the power of the indoor unit and/or the outdoor unit of the air conditioner in a timing period corresponding to the timing signal; the power of the indoor unit comprises at least one single module power of the indoor unit main circuit board power, the indoor display module power, the indoor fan power and the electric heating power; the outdoor unit power comprises at least one single module power in the outdoor unit main circuit board power, the compressor running power, the outdoor fan power, the electronic expansion valve power and the four-way valve power; receiving a third input command comprising a module selection signal; and the data processing device responds to the third input instruction, and calls, displays and/or transmits the consumed electric quantity of the indoor unit and/or the outdoor unit. An air conditioner is also disclosed. The method has the advantages of high detection precision and flexibility.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a single-module-based air conditioner electric quantity detection method and an air conditioner adopting the electric quantity detection method.
Background
The high power consumption of the air conditioner is an important reason for limiting the wide use of the air conditioner, especially for civil use places. In fact, the user can hardly know the actual power consumption of each component in the air conditioner clearly, and can not know the actual power consumption of the air conditioner in different operation modes. The basic cognition of the user on the power consumption of the air conditioner comes from publicity and traditional cognition of science popularization news, which cannot help the user to save energy consumption, and more possibly prompts the user to select an unreasonable air conditioner using mode according to the using habit of common household appliances, such as frequently switching on and off a variable frequency air conditioner for power saving, so that the user experience is sacrificed, and the purpose of saving energy and electricity is not achieved.
In order to help users to know the electric quantity when using the air conditioner, various methods have been designed in the prior art to detect the electric quantity consumption when using the air conditioner, for example, the technical scheme disclosed in the chinese patent application (application No. 2013102004604) 'method and device for detecting electric energy of an air conditioner', which calculates the electric energy information of the air conditioner within a preset time period according to the instantaneous value of the voltage of the input alternating current and the instantaneous value of the current of the input alternating current. The method has low detection precision, and the user can hardly know the influence of the control mode of the user on the air conditioner on the electric quantity of the air conditioner. In order to further improve the detection accuracy, a method for calculating the power consumption of the air conditioner according to a given empirical model is also designed in the prior art, for example, a technical scheme disclosed in chinese patent (application No. 2015104690759) 'method, device and air conditioner for detecting the power consumption of the air conditioner' obtains the angle of an air guide strip of an indoor unit, the temperature of an indoor heat exchanger, the indoor temperature and the indoor environment humidity, and estimates the operating power of an indoor fan by establishing a power estimation model function associated with the effective value of the voltage of the outdoor unit, the angle of the air guide strip of the indoor unit, the temperature of the indoor heat exchanger, the indoor environment temperature and the indoor environment humidity; … the indoor controller takes the temperature of the indoor heat exchanger, the operation power of the indoor fan and the effective value of the voltage of the outdoor unit as the first input variables, and models the operation power of the PTC heater according to the first input variables to estimate the operation power of the PTC heater. It is easy to understand that, for the air conditioner, the capacity of the data processing system arranged inside the air conditioner is limited, and the complex data model necessarily reduces the speed and the precision of the data processing of the air conditioner, further resulting in that the processor cannot respond to the user request quickly, and meanwhile, because of the coupling relationship of the complex linkage among the components, the power consumption of part of the components in the air conditioner cannot be calculated and displayed according to the user request. Furthermore, as input parameters, there is a significant hysteresis in the detection of the temperature of the indoor heat exchanger, the indoor ambient temperature, and it is difficult to accurately calculate ideal power consumption data in a short time. In addition, the complex data model obtained in the above patent application relies on pattern recognition to calculate compensation values, and for each pattern of each air conditioner, at least seven model empirical constants must be obtained from experimental empirical data. In the face of more and more air conditioners with function modes, the experimental data volume is huge, and time and labor are consumed.
In summary, the method for detecting the power consumption of the air conditioner disclosed in the prior art cannot form an accurate, fast and flexible method for detecting the power consumption of the air conditioner on the premise of ensuring fast response to the user request.
Disclosure of Invention
The invention aims to form an accurate, quick and flexible method for detecting the electric quantity consumed by the air conditioner on the premise of ensuring quick response to a user request.
The invention provides a single-module-based air conditioner electric quantity detection method, which is characterized by comprising the following steps:
the data processing device receives a first input instruction comprising a group of on-off signals;
the data processing device receives a second input instruction comprising at least one timing signal;
correlating the first input instruction and the second input instruction by the data processing device to determine the indoor unit power and/or the outdoor unit power of the air conditioner in a timing period corresponding to the timing signal; the power of the indoor unit comprises at least one single module power of the indoor unit main circuit board power, the indoor display module power, the indoor fan power and the electric heating power; the power of the outdoor unit comprises at least one single module power of the power of a main circuit board of the outdoor unit, the running power of a compressor, the power of an outdoor fan, the power of an electronic expansion valve and the power of a four-way valve;
the data processing device receives a third input instruction comprising a module selection signal;
and the data processing device responds to the third input instruction, and calls, displays and/or transmits the consumed electric quantity of the indoor unit and/or the consumed electric quantity of the outdoor unit related to the first input instruction, the second input instruction and the third input instruction.
Further, the data processing device responds to the third input instruction, continuously judges the change trend of the power of the selected module corresponding to the module selected signal in the timing period corresponding to the timing signal, and if the change trend of the power of the selected module meets a set condition, converts the indoor unit power and/or the outdoor unit power associated with the first input instruction, the second input instruction and the third input instruction into consumed electric quantity and then calls, displays and/or transmits the consumed electric quantity; and if the power variation trend of the selected module does not meet the set condition, when the timing period is terminated, converting the indoor unit power and/or the outdoor unit power which are associated with the first input instruction, the second input instruction and the third input instruction into consumed electric quantity, and calling, displaying and/or transmitting the consumed electric quantity.
Further, the setting condition is that whether the increment of the power of the selected module is larger than a set value or not in the timing period, if so, converting the indoor unit power and/or the outdoor unit power of the air conditioner associated with the first input instruction, the second input instruction and the third input instruction into consumed electric quantity to be displayed and/or transmitted; and if the power consumption is not larger than the set value, when the timing period is terminated, converting the indoor unit power and/or the outdoor unit power which are related to the first input instruction, the second input instruction and the third input instruction into the consumed electric quantity, and calling, displaying and/or transmitting the consumed electric quantity.
Preferably, the set value ∈ (5W, 10W).
Further, the data processing apparatus receives a fourth input command comprising at least one query signal;
and transmitting the converted at least one consumed electric quantity to a server for storage, and receiving and responding to a fourth input instruction by the server to call the consumed electric quantity value of the selected module corresponding to the query signal.
Further, when determining the indoor unit power:
the power P of the main circuit board of the indoor unitg' equal to chip rated power;
the indoor display module power PxEqual to the control panel power PgThe sum of the power P of the prompting lamp in the working state;
the indoor fan power Pf1Comprises the following steps: when indoor fan driving duty ratio d<d1While, the indoor fan power Pf1＝P1(ii) a When fan driving duty ratio dm-1<d<dmIn time, the indoor fan powerWhen fan driving duty ratio d>dnWhile, the indoor fan power Pf1＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, d1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set value;
the electric heating power PtEqual to rated electric heating power Pt0。
As another alternative, when determining the indoor unit power:
the power P of the main circuit board of the indoor unitg' equal to chip rated power;
the indoor display module power PxEqual to the control panel power PgThe sum of the power P of the prompting lamp in the working state;
the indoor fan power Pf1Comprises the following steps: when indoor fan driving duty ratio d<d1While, the indoor fan power Pf1＝P1(ii) a When fan driving duty ratio dm-1<d<dmIn time, the indoor fan powerWhen fan driving duty ratio d>dnWhile, the indoor fan power Pf1＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, d1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set value;
the electric heating power PtEqual to the set electric heating power Pt00And correcting the electric heating power Pt' sum of said corrected electric heating power Pt' dividing the driving duty ratio of the indoor fan into a plurality of data segments, each data segment having a corresponding correction weight, the correction electric heating power Pt' in each data segment, the electric heating power P is corrected to increase with the increase of the driving duty ratio of the indoor fant' equals the accumulated value of the product of the fan drive duty cycle increment and each data segment weight value;
if the air deflector is operated, the electric heating power Pt＝(Pt0+Pt’)k1Wherein k is1The correction coefficient of the air deflector is increased along with the increase of the distance of the air deflector deviating from the original position; k is a radical of1∈(0.9，1.1)。
Further, when determining the outdoor unit power:
the outdoor unit main circuit board has power PgEqual to the rated power of the chip;
operating power of the compressorWherein U is the effective value of the power voltage, and I is the effective value of the power current;
the outdoor fan power Pf2Comprises the following steps:
if the outdoor fan is a direct current fan, the duty ratio d is driven by the outdoor fan<d1While, the outdoor fan power Pf2＝P1(ii) a When fan driving duty ratio dm-1<d<dmWhile, the outdoor fan powerWhen fan driving duty ratio d>dnWhile, the outdoor fan power Pf2＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, wherein d1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set value;
if the outdoor fan is an alternating current fan, selecting a corresponding rated power set value P according to the rotating speed of the outdoor fanf2', outdoor fan power Pf2Equal to the rated power set value and the voltage correction parameter k2Product k of2E (0.9, 1.1), voltage correction parameter k2Increases with increasing mains voltage;
the power P of the electronic expansion valvedEqual to the rated power of the electronic expansion valve;
the four-way valve has power PsEqual to the rated power of the four-way valve.
Further, if the outdoor fan is an alternating current fan, the rated power is divided into two gears according to the rotating speed of the outdoor fan, and a rated power value P is correspondingly distributed corresponding to each gear of wind speed01And P02Selecting a corresponding rated power value as a rated power set value P according to the rotating speed of the outdoor fanf2’。
According to the single-module air conditioner electric quantity detection method provided by the invention, a user actively controls the starting and stopping state of the air conditioner and selects the timing period of electric quantity consumption, the starting and stopping state of the air conditioner and the timing period are correlated through the data processing device to determine the power of each single module in the air conditioner, the power is independently calculated and stored, the consumed electric quantity of any one single module is calculated, called, displayed and transmitted according to the module selection process which can be actively intervened by the user, and the whole correlation, determination, calculation and calling process does not depend on the environmental parameters of an air conditioner room or a complex data model.
The invention also discloses an air conditioner, which adopts the air conditioner electric quantity detection method based on the single module. The air conditioner electric quantity detection method based on the single module comprises the following steps:
the data processing device receives a first input instruction comprising a group of on-off signals;
the data processing device receives a second input instruction comprising at least one timing signal;
correlating the first input instruction and the second input instruction by the data processing device to determine the indoor unit power and/or the outdoor unit power of the air conditioner in a timing period corresponding to the timing signal; the power of the indoor unit comprises at least one single module power of the indoor unit main circuit board power, the indoor display module power, the indoor fan power and the electric heating power; the power of the outdoor unit comprises at least one single module power of the power of a main circuit board of the outdoor unit, the running power of a compressor, the power of an outdoor fan, the power of an electronic expansion valve and the power of a four-way valve;
the data processing device receives a third input instruction comprising a module selection signal;
and the data processing device responds to the third input instruction, and calls, displays and/or transmits the consumed electric quantity of the indoor unit and/or the consumed electric quantity of the outdoor unit related to the first input instruction, the second input instruction and the third input instruction.
In the air conditioner disclosed by the invention, the consumed electric quantity of any one single module or a plurality of single modules in the set timing period can be transmitted, displayed, called and calculated according to the requirements of users or the requirements of manufacturers, all the modules are ensured to be relatively independent in the process of detection and calculation, the coupling relation between the calculation process and the use environment of the air conditioner is small, and the calculation precision is high and flexible. Meanwhile, a complicated modeling process is avoided, so that a user can know the actual power consumption of each single module, the indoor unit, the outdoor unit and the whole machine, a good use habit is established according to the actual power consumption, and the purpose of saving energy consumption is achieved while the use comfort is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flowchart illustrating a method for detecting an electric quantity of an air conditioner based on a single module according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating a second embodiment of a method for detecting an electric quantity of an air conditioner based on a single module according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flow chart of a first embodiment of a method for detecting electric quantity of an air conditioner based on a single module according to the present invention is shown. As shown, this is achieved by the following steps.
Completely different from the prior art, firstly, the data processing of the electric quantity detection of the whole air conditioner is realized by a data processing device, and the data processing device is preferably an independent MCU so as to improve the precision and the speed of the whole electric quantity calculation process; the data processing device can also be realized by a control chip of the indoor unit. In the process of detecting the electric quantity, the data processing device receives a first input command comprising a group of switch signals. The first input command may be derived from a remote control device of the air conditioner, including but not limited to a conventional infrared remote controller, and a smart terminal remote control device opened through a software interface. The first input command may also originate from communication with the main board of the indoor unit. The indoor machine mainboard receives the remote control signal to generate and transmits a first input instruction to the data processing device. The data processing device responds to the first input instruction to receive the on-off state of the air conditioner. The data processing apparatus may also receive a standby instruction comprising a standby signal. The data processing device responds to the standby instruction to receive the standby state of the air conditioner, and monitors the power consumption condition of the air conditioner in the standby state through the data processing device, wherein the power consumption of the air conditioner in the standby state is usually the basic energy consumption of a standby state display device, a switching power supply of the air conditioner and a chip of a control panel.
Before the data processing device starts to operate, a second input instruction comprising at least one timing signal is also received. The timing signal in the second input command corresponds to a fixed statistical timing period of the consumed electric quantity, the timing period may be set by a user or may be default setting in factory, and the data processing device responds to the second input command to receive the timing period. The duration of the timing period is preferably several hours, which is sufficient to keep the operating state of the air conditioner relatively stable. In one-time start-stop control of the air conditioner, a plurality of timing periods can be determined through a plurality of timing signals according to the second input instruction.
The data processing device is used for correlating the first input instruction and the second input instruction and further determining the indoor unit power and/or the outdoor unit power of the air conditioner in the timing period corresponding to the timing signal. Mainly, the data processing device determines the variation trend of the indoor unit power and the outdoor unit power in the current switch state according to the set timing period, and calculates the corresponding electric quantity at the set time node. Specifically, the power of the indoor unit comprises at least one single module power of a main circuit board of the indoor unit, the power of an indoor display module, the power of an indoor fan and the power of electric heating, and the power of the outdoor unit comprises at least one single module power of the main circuit board of the outdoor unit, the running power of a compressor, the power of an outdoor fan, the power of an electronic expansion valve and the power of a four-way valve. In the data processing device, each single module power is independently calculated and stored and can be independently called. In the process of determining the indoor unit power and/or the outdoor unit power, the data processing device simultaneously judges whether the power of each single module is in a reasonable interval, and if the power of each single module exceeds the reasonable interval, an alarm signal is generated.
The data processing apparatus further receives a third input command comprising a module selection signal. The data processing device is responsive to the third input command to receive the module selection information. The module selection signal defaults to set the corresponding selected module as the air conditioner complete machine, namely, the sum of the whole electric quantity consumed by each single module of the air conditioner in the timing period set by the second input instruction under the starting and stopping state of the air conditioner determined by the first input instruction. In this embodiment, a more preferable mode is that the module selection signal receives active intervention of a user, and the user may actively output a third input instruction including the module selection signal for intervention through the remote control terminal or through the main board of the indoor unit. For example, a user actively selects and obtains the power consumption of one single module through the module selection signal, or the power consumption of the independent indoor unit and the power consumption of the independent outdoor unit. And the data processing device responds to the third input instruction, determines the electricity consumption of the indoor unit and/or the electricity consumption of the outdoor unit associated with the first input instruction, the second input instruction and the third input instruction, and further calls, displays and/or transmits the electricity consumption of the indoor unit and the electricity consumption of the outdoor unit to a specified user terminal, a server, a cloud platform or a display device of the air conditioner. A preferred mode is that the third input command is preferably a group of remote controller coded signals, and the remote controller coded signals respectively correspond to the selected modules, and are respectively all the single modules included in each single module, all the single modules included in the indoor unit, all the single modules included in the outdoor unit, and all the single modules included in the whole unit. The remote controller coding signal is generated by keys on the remote control terminal and actions on the keys. Taking the display action as an example, after the data processing device receives the corresponding coding signal, the data processing device continuously or switchingly displays the power consumption of each single module, the power consumption of the indoor unit, the power consumption of the outdoor unit and the power consumption of the whole air conditioner corresponding to the set time length on the selected display device, so that a user can clearly know the power consumption condition of each functional component of the air conditioner in the timing period. Because the data processing device is independently arranged, the data calculation of each single module is not interfered with each other, and the data calculation process is accurate and the response is quick. Further, in the calculation process, the operating season of the air conditioner and corresponding external environment data can be obtained by matching the start-stop time corresponding to the switching signal included by the first input instruction with the clock of the MCU, and the external environment data, the operating time of the air conditioner and the power consumption of each single module are transmitted to the cloud platform so as to obtain the relationship among the external environment data, the operating time of the air conditioner and the power consumption of each single module through correlation, and the relationship is used as a basis for further optimizing and controlling the operation of the air conditioner or generating a chart to be used as a basis for guiding a user to reasonably use. The analysis mode does not depend on the parameters such as the temperature of the heat exchanger, the indoor temperature, the ambient temperature and the like with high change frequency, and is more intuitive and accurate for users.
According to the single-module air conditioner electric quantity detection method provided by the embodiment, a user actively controls the starting and stopping state of the air conditioner and selects the timing period of electric quantity consumption, the starting and stopping state of the air conditioner and the timing period are correlated through the data processing device to determine the power of each single module in the air conditioner, the power is independently calculated and stored, the consumed electric quantity of any one single module is calculated, called, displayed and transmitted according to the module selection process which can be actively intervened by the user, and the whole correlation, determination, calculation and calling process does not depend on the environmental parameters of an air conditioner room or a complex data model.
In the process of determining the consumed electric quantity of each single module, indoor unit, outdoor unit or complete machine according to the association of the first input instruction, the second input instruction and the third input instruction, taking the display action as an example, the generated display value is a continuously and continuously accumulated and changed superposition value, and due to the data transmission delay and the limitation of the data processing capacity of the processor, the superposition calculation process has data redundancy to a certain extent. In order to reduce the redundancy of data, the data processing apparatus first determines the power variation trend of the selected module corresponding to the module selection signal in the timing period corresponding to the timing signal after responding to the third input command. And if the variation trend meets the set condition, immediately converting the indoor unit power and/or the outdoor unit power associated with the first input instruction, the second input instruction and the third input instruction into consumed electric quantity, displaying and/or transmitting the consumed electric quantity, and recording the corresponding time node. And if the variation trend does not meet the set condition, converting the indoor unit power and/or the outdoor unit power which are related to the first input instruction, the second input instruction and the third input instruction into consumed electric quantity and then displaying and/or transmitting the consumed electric quantity by taking the timing period as a time node when the timing period is ended. Therefore, the method avoids the too frequent operation, reduces the data processing amount, removes redundant data, reduces the error between single-module calculation and multi-module accumulated value, and improves the detection precision.
The setting condition for judging the change trend is preferably that whether the increment of the selected module power is larger than a set value in the timing period, wherein the increment is defined as the absolute value of the change value of the selected module at two continuous time points. Such as the power increment of the selected module relative to the previous second. And if the power increment is larger than the set value, converting the indoor unit power and/or the outdoor unit power which are related to the first input instruction, the second input instruction and the third input instruction into consumed electric quantity, displaying and/or transmitting the consumed electric quantity, and recording corresponding time nodes. If the power consumption is not larger than the set value, when the timing period is ended, converting the indoor unit power and/or the outdoor unit power related to the first input instruction, the second input instruction and the third input instruction into consumed electric quantity, displaying and/or transmitting the consumed electric quantity, and recording the time when the timing period is ended as a time node. Preferably, the value e (5W, 10W) is set.
Meanwhile, the data processing device transmits the converted consumed electric quantity to the server for storage. The user can inquire any one of the consumed electric power amounts. Specifically, the data processing device receives a fourth input instruction including at least one query signal, and the server receives and responds to the fourth input instruction to call the consumed electric quantity in any time period corresponding to the query signal. For example, the air conditioner is in [ T ]1，T2]Running in time periods, the inquiry signal corresponding to inquiry [ T3，T4]And the server retrieves the consumed electric quantity of a plurality of time nodes in the query time period, and further transmits or displays the consumed electric quantity.
The complex environmental parameters in the use environment of the air conditioner and the running states of all functional components of the air conditioner are complex coupling relations, so that the relation determined by a single formula cannot be basically obtained, and the influence of the environmental parameters on the running states of the components is further compensated by using a data model. Unlike the prior art in which a complex data model is built to determine the power of each individual module. The single-module air conditioner electric quantity detection method disclosed by the invention determines the power of each single module in the timing period by utilizing the physical property and the empirical value of each single module, simplifies the coupling relation among all components, keeps the electric quantity calculation of each single module relatively independent, and does not need to adopt a large amount of experimental modeling aiming at different machine types and air conditioning environments.
Specifically, to achieve the above object, when determining the indoor unit power:
the power P of the main circuit board of the indoor unitg' is equal to the chip power rating. Indoor set main circuit board power PgThe' is mainly the sum of the power of the main chip during operation and the power of other components in standby operation. In the range of 0-5W, the data processing device preferably compares the power of the module with the power variation trend when determining the power of the module according to the first input command and the second input command, and stores or outputs the module after determining that the module falls into the range.
The indoor display module power PxEqual to the control panel power PgAnd the sum of "power P of the indicator light in operation". Wherein the power P of the board is controlledg"is the total power of all devices on the control board when operating. The power of the indicator light is P ═ PLX, wherein PLThe power for lighting a single indicator light, and X is the number of indicator lights of the electric quantity.
The indoor fan power Pf1The duty ratio is obtained by detecting the driving duty ratio of the indoor fan. When indoor fan driving duty ratio d<d1While, the indoor fan power Pf1＝P1(ii) a When fan driving duty ratio dm-1<d<dmIn time, the indoor fan powerWhen fan drive duty ratiod>dnWhile, the indoor fan power Pf1＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, m and n belong to [1, 5 ]]Wherein d is1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set point. Preferably, n is 5, d1＝10％,d2＝30％,d3＝60％,d4＝85％,d5＝95％，P1＝7W,P2＝22W,P3＝46W,P4＝90W,P5110W. For example, if the indoor fan drive duty cycle is 70%, then the indoor fan powerAccording to different models, the numerical value of the set value only needs to be adjusted according to the capacities of different motors, and the power consumption of the fan is guaranteed to be independently calculated without detecting and calculating an empirical formula again.
The electric heating power PtFor rated electric heating power Pt0。
For most of the cases, the electric heating power PtAffected by the running state of the indoor fan. In order to increase the electric heating power PtWhile correcting and compensating for the operating state of the fan, in another embodiment, the electric heating power PtEqual to the set electric heating power Pt00And correcting the electric heating power Pt' sum, correcting the electric heating power Pt' is increased as the indoor fan driving duty ratio is increased. Specifically, the electric heating power P is sett00The constant value can be selected according to different models of electric heating. Correcting electric heating power Pt' depending on the rotational speed of the indoor fan, it is preferable to correct the electric heating power Pt' dividing the driving duty ratio of the corresponding indoor fan into a plurality of data segments, each data segment having a corresponding correction weight w, correcting the electric heating power Pt' in each data segment, the electric heating power P is corrected to increase with the increase of the driving duty ratio of the indoor fantIncrement of' equal to windAnd the accumulated value of the product of the machine driving duty ratio and the weight value. For example, for a certain type of electric heating device, the electric heating power P is sett00Is 630W. Correcting electric heating power Pt' the division into a plurality of data segments each having a corresponding correction weight w is performed according to the following list according to the indoor fan driving duty ratio.
| d | 40％-50％ | 50％-60％ | 60％-80％ | 80％-95％ |
| w | 700 | 700 | 300 | 200 |
If the currently detected indoor fan duty cycle is 70%, the corrected electrical heating power is (50% -40%) 700+ (60% -50%) 700+ (70% -60%) 300 — 170W. Electric heating power PtEqual to the set electric heating power Pt00And correcting the electric heating power Pt' the sum, i.e., 630W +170W, is 800W.
When the indoor fan runs, the position of the air deflector also influences the electric heating power, and in order to correct the error formed by the angle of the air deflector, if the air deflector runs, the electric heating power Pt＝(Pt0+Pt’)k1Wherein k is1The correction coefficient of the air deflector is increased along with the increase of the distance of the air deflector deviating from the original position; k is a radical of1E (0.9, 1.1). Preferably, k is the normal position of the air deflector1The standard position is a set running position, and the standard position is preferably a running position corresponding to a step signal set by the stepping motor. If the standard position is deviated, the air deflector correction coefficient is used for correcting the standard position, and a specific group of preferred air deflector correction coefficients is shown in the following table:
| angle of departure | ＜-20° | -20°～-10° | -10°～-5° | -5°～5° | 5°～10° | 10°～20° | ＞20° |
| k1 | 0.94 | 0.96 | 0.98 | 1 | 1.02 | 1.05 | 1.08 |
Further, when the outdoor unit power is determined,
the outdoor unit main circuit board has power PgEqual to the chip power rating. Outdoor machine main circuit board power PgThe power of the main chip during operation and the power of other components in standby operation are mainly the sum. Generally, in the interval of 0-5W, when the data processing device determines the power and the power change trend of the module according to the first input instruction and the second input instruction, the data processing device preferably compares the power and the power change trend with the interval, and stores or outputs the power after determining that the power value does not exceed the interval.
Operating power of the compressorWherein U is the effective value of the power voltage, and I is the effective value of the power current.
Obtaining the power P of the outdoor fanf2When the type of the outdoor fan is determined, the type of the outdoor fan needs to be determined.
If the outdoor fan is a direct current fan, the duty ratio d is driven by the outdoor fan<d1While, the outdoor fan power Pf2＝P1(ii) a When fan driving duty ratio dm-1<d<dmWhile, the outdoor fan powerWhen fan driving duty ratio d>dnWhile, the outdoor fan power Pf2＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, m and n belong to [1, 5 ]]Wherein d is1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set point. Preferably, n is 5, d1＝10％,d2＝30％,d3＝60％,d4＝85％,d5＝95％，P1＝7W,P2＝22W,P3＝46W,P4＝90W,P5110W. For example, if the outdoor fan driving duty ratio is 70%, the outdoor fan driving duty ratio is 70%Power of fanAccording to different models, the numerical value of the set value only needs to be adjusted according to the capacities of different motors, and the power consumption of the fan is guaranteed to be independently calculated without detecting and calculating an empirical formula again.
Because the AC fan adopts open-loop control no matter the AC fan is a double-speed fan or a single-speed fan. Therefore, if the outdoor fan is an alternating current fan, the corresponding rated power set value P is selected according to the rotating speed of the outdoor fanf2'. Selecting a corresponding rated power set value Pf2In this case, it is preferable to divide the rated power into two stages according to the rotation speed of the outdoor fan, and to allocate a rated power value P corresponding to each stage of wind speed01And P02. Judging the wind speed gear to which the rotating speed of the current outdoor fan belongs, and further selecting the corresponding rated power value as a rated power set value Pf2'. According to different practical application scenes, more rated power values can be set as the rated power set values.
Outdoor fan power Pf2Equal to the rated power set value and the voltage correction parameter k2Product of and outdoor fan power Pf2Increases with increasing mains voltage, k2E (0.9, 1.1). A specific set of preferred air deflection correction factors is shown in the following table:
| commercial power voltage (V) | ＜200 | ＜210 | 200 | ＞230 | ＞240 |
| k2 | 0.9 | 0.95 | 1 | 1.05 | 1.1 |
The power P of the electronic expansion valvedEqual to the rated power of the electronic expansion valve. The motor controlling the electronic expansion valve has a short actuation time and the power is usually between 0 and 5W, preferably 3W.
The four-way valve has power PsEqual to the rated power of the four-way valve, the four-way valve operates only in the heating mode, and the power is usually between 0 and 5W, and is preferably 4W.
In the above embodiment, the power determinations of the indoor unit and the outdoor unit are relatively independent, and the coupling relationship is appropriately corrected, so that the accuracy of data is ensured, and meanwhile, the power of each single module can be independently determined and called, and the consumed electric quantity is calculated according to the timing period. Through experiments, the error of the air conditioner electric quantity detection can be controlled within 5%.
The invention also discloses an air conditioner, which adopts any one of the air conditioner electric quantity detection methods based on the single module disclosed by the embodiments. In the air conditioner disclosed by the invention, the consumed electric quantity of any one single module or a plurality of single modules in the set timing period can be transmitted, displayed, called and calculated according to the requirements of users or the requirements of manufacturers, all the modules are ensured to be relatively independent in the process of detection and calculation, the coupling relation between the calculation process and the use environment of the air conditioner is small, and the calculation precision is high and flexible. Meanwhile, a complicated modeling process is avoided, so that a user can know the actual power consumption of each single module, the indoor unit, the outdoor unit and the whole machine, a good use habit is established according to the actual power consumption, and the purpose of saving energy consumption is achieved while the use comfort is ensured. The specific steps of the method for detecting the electric quantity of the air conditioner based on the single module are described in detail in the above embodiments, and are not described herein again.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The air conditioner electric quantity detection method based on the single module is characterized by comprising the following steps:
the data processing device receives a first input instruction comprising a group of on-off signals;
the data processing device receives a second input instruction comprising at least one timing signal;
correlating the first input instruction and the second input instruction by the data processing device to determine the indoor unit power and/or the outdoor unit power of the air conditioner in a timing period corresponding to the timing signal; the power of the indoor unit comprises at least one single module power of the indoor unit main circuit board power, the indoor display module power, the indoor fan power and the electric heating power; the power of the outdoor unit comprises at least one single module power of the power of a main circuit board of the outdoor unit, the running power of a compressor, the power of an outdoor fan, the power of an electronic expansion valve and the power of a four-way valve;
the data processing device receives a third input instruction comprising a module selection signal;
the data processing device responds to the third input instruction, continuously judges the change trend of the power of the selected module corresponding to the module selected signal in the timing period corresponding to the timing signal, and if the change trend of the power of the selected module meets the set condition, converts the indoor unit power and/or the outdoor unit power related to the first input instruction, the second input instruction and the third input instruction into consumed electric quantity and then calls, displays and/or transmits the consumed electric quantity; if the power variation trend of the selected module does not meet the set condition, when the timing period is terminated, converting the indoor unit power and/or the outdoor unit power associated with the first input instruction, the second input instruction and the third input instruction into consumed electric quantity, and calling, displaying and/or transmitting the consumed electric quantity;
the setting condition is that whether the increment of the power of the selected module is larger than a set value or not in the timing period, if so, the indoor unit power and/or the outdoor unit power of the air conditioner, which are related to the first input instruction, the second input instruction and the third input instruction, are/is converted into consumed electric quantity to be displayed and/or transmitted; and if the power consumption is not larger than the set value, when the timing period is terminated, converting the indoor unit power and/or the outdoor unit power which are related to the first input instruction, the second input instruction and the third input instruction into the consumed electric quantity, and calling, displaying and/or transmitting the consumed electric quantity.
2. The single module based air conditioner charge amount sensing method as claimed in claim 1, wherein the set value e (5W, 10W).
3. The single module based air conditioner power detection method according to claim 2,
the data processing device receives a fourth input instruction comprising at least one query signal;
and transmitting the converted at least one consumed electric quantity to a server for storage, and receiving and responding to a fourth input instruction by the server to call the consumed electric quantity value of the selected module corresponding to the query signal.
4. The single module-based air conditioner power detection method according to any one of claims 1 to 3,
when the indoor unit power is determined:
main circuit board of indoor unitPower Pg' equal to chip rated power;
the indoor display module power PxEqual to the control panel power PgThe sum of the power P of the prompting lamp in the working state;
the indoor fan power Pf1Comprises the following steps: when indoor fan driving duty ratio d<d1While, the indoor fan power Pf1＝P1(ii) a When fan driving duty ratio dm-1<d<dmIn time, the indoor fan powerWhen fan driving duty ratio d>dnWhile, the indoor fan power Pf1＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, d1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set value;
the electric heating power PtEqual to rated electric heating power Pt0。
5. The single module-based air conditioner power detection method according to any one of claims 1 to 3,
when the indoor unit power is determined:
the power P of the main circuit board of the indoor unitg' equal to chip rated power;
the indoor display module power PxEqual to the control panel power PgThe sum of the power P of the prompting lamp in the working state;
the indoor fan power Pf1Comprises the following steps: when indoor fan driving duty ratio d<d1While, the indoor fan power Pf1＝P1(ii) a When fan driving duty ratio dm-1<d<dmIn time, the indoor fan powerWhen fan driving duty ratio d>dnWhile, the indoor fan power Pf1＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, d1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set value;
the electric heating power PtEqual to the set electric heating power Pt00And correcting the electric heating power Pt' sum of said corrected electric heating power Pt' dividing the driving duty ratio of the indoor fan into a plurality of data segments, each data segment having a corresponding correction weight, the correction electric heating power Pt' in each data segment, the electric heating power P is corrected to increase with the increase of the driving duty ratio of the indoor fant' equal to the accumulated value of the product of the fan drive duty cycle increment and the weight value of each data segment, wherein the electric heating power P is sett00Is a constant value selected according to the electric heating model;
if the air deflector is operated, the electric heating power Pt＝(Pt0+Pt’)k1Wherein k is1The correction coefficient of the air deflector is increased along with the increase of the distance of the air deflector deviating from the original position; k is a radical of1∈(0.9，1.1)。
6. The single module-based air conditioner electric quantity detection method according to claim 5, characterized in that:
when determining the outdoor unit power:
the outdoor unit main circuit board has power PgEqual to the rated power of the chip;
operating power of the compressorWherein U is the effective value of the power voltage, and I is the effective value of the power current;
the outdoor fan power Pf2Comprises the following steps:
if the outdoor fan is a direct current fan, the duty ratio d is driven by the outdoor fan<d1When it is outside the roomFan power Pf2＝P1(ii) a When fan driving duty ratio dm-1<d<dmWhile, the outdoor fan powerWhen fan driving duty ratio d>dnWhile, the outdoor fan power Pf2＝PnWherein m is more than or equal to 1 and less than or equal to n, m and n are integers, wherein d1，dm-1，dm，dnBeing a constant of increasing, P1，Pm-1，PmIs an incremental set value;
if the outdoor fan is an alternating current fan, selecting a corresponding rated power set value P according to the rotating speed of the outdoor fanf2', outdoor fan power Pf2Equal to the rated power set value and the voltage correction parameter k2Product k of2E (0.9, 1.1), voltage correction parameter k2Increases with increasing mains voltage;
the power P of the electronic expansion valvedEqual to the rated power of the electronic expansion valve;
the four-way valve has power PsEqual to the rated power of the four-way valve.
7. The single module based air conditioner power detection method according to claim 6,
if the outdoor fan is an alternating current fan, the rated power is divided into two gears according to the rotating speed of the outdoor fan, and a rated power value P is correspondingly distributed corresponding to each gear of wind speed01And P02Selecting a corresponding rated power value as a rated power set value P according to the rotating speed of the outdoor fanf2’。
8. An air conditioner, characterized in that the air conditioner electric quantity detection method based on single module according to any claim 1 to 7 is adopted.
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| CN201710494500.9A CN107255348B (en) | 2017-06-26 | 2017-06-26 | Air conditioner electric quantity detection method based on single module and air conditioner |
| PCT/CN2018/092556 WO2019001377A1 (en) | 2017-06-26 | 2018-06-25 | Air conditioner electric quantity detection method based on single module, and air conditioner |
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| CN107255348B (en) * | 2017-06-26 | 2019-12-31 | 青岛海尔空调器有限总公司 | Air conditioner electric quantity detection method based on single module and air conditioner |
| CN109374963B (en) * | 2018-09-30 | 2021-09-28 | 四川长虹空调有限公司 | Air conditioner electric quantity calculation method |
| CN109539482A (en) * | 2018-10-29 | 2019-03-29 | 珠海格力电器股份有限公司 | Electric quantity calculation method and device and air conditioning system |
| CN110658383B (en) * | 2019-10-09 | 2021-09-28 | 广东美的制冷设备有限公司 | Power detection method and device, air conditioner and storage medium |
| CN110658382B (en) * | 2019-10-09 | 2022-03-04 | 广东美的制冷设备有限公司 | Power detection method and device, air conditioner and storage medium |
| CN112944601B (en) * | 2021-02-01 | 2022-03-15 | 珠海格力电器股份有限公司 | Power determination device and method for air conditioner internal unit and air conditioner |
| CN113757923A (en) * | 2021-08-26 | 2021-12-07 | 佛山市顺德区美的电子科技有限公司 | Air conditioner, electric quantity measuring method and storage medium thereof |
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