[0001] The present application is proposed based on China patent application No.
201710302173.2, filed on May 2, 2017, and claims priority to the China patent application, the entire contents of which
are hereby incorporated by reference.
Technical Field
[0002] The present invention relates to the technical field of air conditioners, and particularly
relates to a method and a device for estimating power consumption of an air conditioner.
Background
[0003] With the progress of science and technology and the development of culture, industrial
development and economic activities require a large amount of energy. Energy is not
inexhaustible; in addition, the consumption of non-clean energy will bring environmental
pollution. In view of greenhouse effect, high-price trend of the energy, exhaustion
of traditional energy and other problems, how to save energy and correctly evaluate
an energy-saving effect becomes the most concerned issue in the world. In the prior
art, such as in the technical field of air conditioners, many energy-saving control
methods have appeared. The power consumption of the air conditioners is generally
estimated by relying on laboratory data when the quantity of saved electricity is
measured. However, the method has a relatively large error since the power consumption
of the air conditioners is affected by many factors such as geographical location,
outdoor environment, indoor environment, house type and machine type.
Summary
[0004] Embodiments of the present invention provide a method and a device for estimating
power consumption of an air conditioner, so as to solve a problem of relatively large
error since the power consumption of the air conditioner is estimated by using laboratory
data in the prior art. In order to basically understand some aspects of the disclosed
embodiments, a brief summary is given below. The summary is not a general comment,
nor tends to determine key/critical constituent elements or describe a protection
scope of these embodiments, and only aims to present some concepts in a simplified
form as an introduction of the following detailed description.
[0005] A method for estimating power consumption of an air conditioner is provided according
to a first aspect of the embodiments of the present invention.
[0006] In some exemplary embodiments, the method for estimating the power consumption of
the air conditioner includes:
acquiring types of n first air conditioners which are located in the same region with
a second air conditioner, and operating parameters of each of the first air conditioners
within a time period T, where the operating parameters include s times of powers Pix reported by each of the first air conditioners within the time period T and an operating
time tix corresponding to each power Pix; i = 1, 2, ..., n; the n is a positive integer not less than 1; x = 1, 2, ..., s; and the s is a positive integer not less than 1;
determining power correction coefficients αi of the n first air conditioners according to the types of the n first air conditioners
and the type of the second air conditioner; and
calculating an power consumption of the second air conditioner within the time period
T according to the operating parameters within the time period T and the power correction
coefficient αi of each of the n first air conditioners.
[0007] In some illustrative embodiments, the calculating the estimated power consumption
of the second air conditioner within the time period T according to the operating
parameters within the time period T and the power correction coefficient α
i of each of the n first air conditioners includes:
calculating a correction power Pi of each of the n first air conditioners;
calculating an average correction power P of the n first air conditioners according
to the correction power Pi of each of the n first air conditioners; and
calculating the estimated power consumption W1 of the second air conditioner within
the time period T according to the average correction power P of the n first air conditioners.
[0008] In some illustrative embodiments, the calculating the power consumption of the second
air conditioner within the time period T according to the following formula includes:
calculating the correction power Pi of each of the n first air conditioners according to a formula 1:
[0009] In some illustrative embodiments, the determining the power correction coefficients
α
i of the n first air conditioners according to the types of the n first air conditioners
and the type of the second air conditioner includes:
determining a coefficient a0 of the second air conditioner according to the type of the second air conditioner;
determining coefficients ai of the n first air conditioners according to the types of the n first air conditioners;
and
calculating the power correction coefficients αi of the n first air conditioners according to a formula 4:
[0010] In some illustrative embodiments, after calculating the power consumption of the
second air conditioner within the time period T, the method further includes:
calculating an actual power consumption W2 of the second air conditioner within the
time period T, where a set temperature of the second air conditioner within the time
period T is a second temperature, and the second temperature is different from the
first temperature; and
calculating a power consumption saving value Δ W of the second air conditioner within
the time period T according to the following formula:
[0011] In some illustrative embodiments, the calculating the actual power consumption W2
of the second air conditioner within the time period T includes:
acquiring the operating parameters of the second air conditioner within the time period
T, where the operating parameters include m times of powers Py reported by the air conditioner within the time period T and an operating time ty corresponding to each power Py; and
calculating the actual power consumption W2 according to the following formula:
where y = 1, 2, ... , m, and the m is a positive integer not less than 1.
[0012] In the above embodiments, the power consumption of the second air conditioner within
the time period T when the set temperature is the first temperature is estimated according
to the types of the n first air conditioners and the operating parameters of each
of the first air conditioners within the time period T. In the present embodiment,
when the power consumption of the air conditioner is estimated, the adopted data are
not calculated according to the laboratory data, but are acquired by taking the types
and the operating parameters of the n first air conditioners in the same region and
within the same operating time period; and the power consumption of the second air
conditioner within the time period is estimated according to the parameters. In the
present embodiment, the operating parameters of the n first air conditioners are collected
within the same operating time period; and the parameters are affected by geographic
location, outdoor environment, indoor environment, house type, machine type and other
factors of each of the first air conditioners. In addition, the estimated power consumption
of the second air conditioner also corresponds to the time period. Thus, the power
consumption of the air conditioner converted by the present embodiment is more accurate
than a mode of calculating with the experimental data in the prior art.
[0013] A device for estimating power consumption of an air conditioner is provided according
to a second aspect of the embodiments of the present invention.
[0014] In some exemplary embodiments, the device for estimating the power consumption of
the air conditioner includes a signal receiver and a processor.
[0015] The signal receiver is configured to acquire types of n first air conditioners which
are located in a same region with a second air conditioner, and operating parameters
of each of the first air conditioners within a time period T; where the operating
parameters include s times of powers P
ix reported by each of the first air conditioners within the time period T and an operating
time t
ix corresponding to each power P
ix, where the x = 1, 2, ...,
s; the
s is a positive integer not less than 1; i = 1, 2, ..., n; the n is a positive integer
not less than 1; and
the processor is configured to determine power correction coefficients α
i of the n first air conditioners according to the types of the n first air conditioners
and the type of the second air conditioner, and calculate the power consumption of
the second air conditioner within the time period T according to the operating parameters
within the time period T and the power correction coefficient α
i of each of the n first air conditioners.
[0016] In some illustrative embodiments,
the processor is further configured to calculate a correction power P
i of each of the n first air conditioners, calculate an average correction power P
of the n first air conditioners according to the correction power P
i of each of the n first air conditioners, and calculate the estimated power consumption
W1 of the second air conditioner within the time period T according to the average
correction power P of the n first air conditioners.
[0017] In some illustrative embodiments,
the processor is further configured to calculate the correction power P
i of each of the n first air conditioners according to the following formula:
[0018] In some illustrative embodiments,
the processor is further configured to determine a coefficient a
0 of the second air conditioner according to the type of the second air conditioner,
determine coefficients a; of the n first air conditioners according to the types of
the n first air conditioners, and
calculate the power correction coefficients α
i of the n first air conditioners according to the following formula:
[0019] In some illustrative embodiments,
the processor is further configured to acquire the operating parameters of the second
air conditioner within the time period T, where the operating parameters include m
times of powers P
y reported by the second air conditioner within the time period T and an operating
time t
y corresponding to each power P
y,
calculate the actual power consumption W2 according to the following formula:
where y = 1, 2, ... , m, and m is a positive integer not less than 1, and
calculate a power consumption saving value Δ W of the second air conditioner within
the time period T according to the following formula:
[0020] Technical solutions provided by the embodiments of the present invention may include
beneficial effects below.
[0021] In the above embodiments, the power consumption of the second air conditioner within
the time period T when the set temperature is the first temperature is estimated according
to the types of the n first air conditioners and the operating parameters of each
of the first air conditioners within the time period T. In the present embodiment,
when the power consumption of the air conditioner is estimated, the adopted data are
not calculated according to the laboratory data, but are acquired by taking the types
and the operating parameters of the n first air conditioners in the same region and
within the same operating time period; and the power consumption of the second air
conditioner within the time period is estimated according to the parameters. In the
present embodiment, the operating parameters of the n first air conditioners are collected
within the same operating time period; and the parameters are affected by geographic
location, outdoor environment, indoor environment, house type, machine type and other
factors of each of the first air conditioners. In addition, the estimated power consumption
of the second air conditioner also corresponds to the time period. Thus, the power
consumption of the air conditioner converted by the present embodiment is more accurate
than a mode of calculating with the experimental data in the prior art.
[0022] It should be understood that the above general description and the following detailed
description are merely exemplary and illustrative, and not restrictive to the present
invention.
Brief Description of the Drawings
[0023] The accompanying drawings herein, which are incorporated in the description and constitute
a part of the description, illustrate embodiments consistent with the present invention
and serve to explain principles of the present invention together with the description.
FIG. 1 is a flow chart of a method for estimating power consumption of an air conditioner
according to an exemplary embodiment;
FIG. 2 is a flow chart of a method for estimating power consumption of an air conditioner
according to an exemplary embodiment; and
FIG. 3 is a block diagram of a device for estimating power consumption of an air conditioner
according to an exemplary embodiment.
Detailed Description
[0024] The following description and accompanying drawings fully illustrate specific embodiments
of the present invention so that those skilled in the art can practice the specific
embodiments. The embodiments only represent possible variations. Individual components
and functions are optional unless explicitly required, and a sequence of operations
is variable. Parts and features of some embodiments may be included in or substituted
for parts and features of other embodiments. A scope of the embodiments of the present
invention includes a full scope of claims and available equivalents of the claims.
In this description, various embodiments may be individually or generally represented
by a term "invention" for convenience only. If more than one invention is actually
disclosed, the scope of the application is not automatically limited to any individual
invention or inventive concept. In this description, relational terms such as first,
second, etc. are only used to distinguish one entity or operation from another entity
or operation, and do not require or imply any actual relationship or order among these
entities or operations. Moreover, the terms such as "include", "contain" or any other
variation thereof are intended to cover non-exclusive inclusions, such that a process,
method or apparatus including a series of elements not only includes those elements,
but also includes other elements not explicitly listed. Each embodiment herein is
described in a progressive manner, and focuses on illustrating differences from other
embodiments. Same and similar parts of the various embodiments can be referred to
each other. Structures, products and the like disclosed in the embodiments correspond
to the parts disclosed in the embodiments, and thus are described relatively simply;
and the relevant parts refer to the descriptions of the method.
[0025] The quantity of saved electricity of an air conditioner needs to be calculated after
the air conditioner is subjected to electricity-saving control in the prior art. The
quantity of saved electricity is determined according to a difference between an estimated
power consumption of the air conditioner and an actual power consumption of the air
conditioner in a period of regulating a first state to a second state of the air conditioner,
i.e., a time period T after the air conditioner is subjected to electricity-saving
control. In the above process, the actual power consumption of the air conditioner
can be calculated according to a power and a time fed back by the air conditioner.
[0026] However, the estimated power consumption of the air conditioner needs to be calculated
according to the laboratory data. However, since the power consumption of the air
conditioner may be affected by geographical location, outdoor environment, indoor
environment, house type, machine type and other factors of the air conditioner, the
laboratory data cannot reflect an actual operating state of the air conditioner; and
the calculated estimated power consumption is relatively large in error. An overall
concept of the present invention is to acquire types and operating parameters of a
plurality of air conditioners in the first state within the time period T, and calculate
the estimated power consumption within the time period T when calculating that the
air conditioner is in the first state according to the above parameters.
[0027] In the present invention, the first state refers to a state of the air conditioner
before electricity-saving control; the second state refers to a state of the air conditioner
after electricity-saving control; and the first state and the second state may be
regulation for a set temperature of the air conditioner, e.g., a first temperature
is adjusted to a second temperature, and may also be regulation for a fan speed of
the air conditioner, e.g., a first fan speed is adjusted to a second fan speed.
[0028] First air conditioners are a type of air conditioners of which the types and the
operating parameters are taken from a database when calculating the estimated power
consumption of the second air conditioner. Operating states of the first air conditioners
within the time period T are the same as an operating state of a second air conditioner
before electricity-saving control, i.e., the first air conditioners are in the first
state. The first air conditioners and the second air conditioner are located in the
same region, such as the same city or the same region; and the outdoor environments
are basically the same.
[0029] The second air conditioner is an air conditioner which is subjected to electricity-saving
control and requires calculation of the estimated power consumption. The second air
conditioner is in the first state as the first air conditioners before electricity-saving
control. The second air conditioner is adjusted from the first state to the second
state after performing electricity-saving control on the second air conditioner.
[0030] The types of the first air conditioners or the second air conditioner refer to a
type of parameters capable of reflecting a horsepower and an energy consumption level
of the air conditioner, such as a machine type and a machine code.
[0031] The energy consumption level can be represented by an energy rating label and can
be classified into five levels according to national standards. A level 1 indicates
that an electricity-saving effect of the product has reached an international advanced
level and the energy consumption is the lowest; a level 2 indicates that the product
is relatively electricity-saving; a level 3 indicates that an energy efficiency of
the product is at an average level of the Chinese market; a level 4 indicates that
the energy efficiency of the product is lower than the average level of the market;
a level 5 is a market access indicator of the product, in which the products that
fail to meet the requirements of the level are not allowed to be produced and sold;
and the energy consumption level can also be classified according to industry standards
or enterprise standards.
[0032] A power correction coefficient is determined according to the types of the first
air conditioners and the type of the second air conditioner, and is used for correcting
powers of the first air conditioners and further calculating correction powers of
the first air conditioners.
[0033] The estimated power consumption corresponds to the power consumption of the second
air conditioner within the time period T before electricity-saving control, i.e.,
in the first state.
[0034] The actual power consumption corresponds to the power consumption of the second air
conditioner within the time period T after electricity-saving control, i.e., in the
second state.
[0035] FIG. 1 is a flow chart of an embodiment of the present invention. As shown in the
FIG. 1:
In some exemplary embodiments, the method for estimating the power consumption of
the air conditioner includes:
step S101, types of n first air conditioners located in the same region and operating
parameters of each of the first air conditioners within the time period T are acquired,
where the operating parameters include s times of powers Pix reported by each of the first air conditioners within the time period T and an operating
time tix corresponding to each power Pix; i = 1, 2, ..., n; n is a positive integer not less than 1; x = 1, 2, ..., s; and
s is a positive integer not less than 1;
step S102, the power correction coefficients αi of the n first air conditioners are determined according to the types of the n first
air conditioners and the type of the second air conditioner; and step S103, the estimated
power consumption W1 of the second air conditioner within the time period T is calculated
according to the operating parameters within the time period T and the power correction
coefficient αi of each of the n first air conditioners.
[0036] In the above embodiments, the estimated power consumption of the second air conditioner
within the time period T is calculated according to the types of the n first air conditioners
and the operating parameters of each first air conditioner within the time period
T. In the present embodiment, when the power consumption of the air conditioner is
estimated, the adopted data are not calculated according to the laboratory data, but
are acquired by taking the types and the operating parameters of the n first air conditioners
in the same region and within the same operating time period; and the estimated power
consumption W1 of the second air conditioner is calculated according to the parameters.
In the present embodiment, the operating parameters of the n first air conditioners
are collected within the same operating time period; and the parameters are affected
by geographic location, outdoor environment, indoor environment, house type, machine
type and other factors of each of the first air conditioners. In addition, the estimated
power consumption W1 of the second air conditioner also corresponds to the time period.
Thus, the power consumption of the air conditioner converted by the present embodiment
is more accurate than a mode of calculating with the experimental data in the prior
art.
[0037] In some optional embodiments, the set temperature of a second home appliance before
the electricity-saving control is a first temperature; and the set temperature after
the electricity-saving control is set to a second temperature. The set temperature
of the n first air conditioners taken in the above embodiment is the first temperature;
and the calculated estimated power consumption is a power consumption of the second
home appliance within the operating time period T when the set temperature is the
first temperature. In the present embodiment, the second home appliance achieves a
purpose of saving electricity by adjusting the set temperature. Therefore, in the
present embodiment, the first state of the n first home appliances means that the
set temperature is the first temperature. The second state of the second home appliance
after the electricity-saving control means that the set temperature is the second
temperature.
[0038] In some optional embodiments, the types and operating parameters of the n first air
conditioners may be acquired from a cloud server or other devices in the step S101.
The cloud server or other devices are configured to monitor the operating states of
the air conditioners in the same region, such as the first state and the second state;
when the power of the air conditioner changes, the air conditioner may actively report
the change to the cloud server or other devices and inform them of a current power;
and therefore, the cloud server or other devices also record the power of each air
conditioner and the operating time corresponding to the power.
[0039] In some optional embodiments, the power correction coefficients α
i of the n first air conditioners may be queried from a local or cloud server or other
devices in the step S102.
[0040] Optionally, the power correction coefficients α
i of the air conditioners of different types are recorded in a database; and the power
correction coefficients α
i of the first air conditioners can be directly queried according to the types of the
first air conditioners and the type of the second air conditioner.
[0041] Optionally, coefficients of the air conditioners corresponding to different horsepower
and different energy consumption levels are recorded in the database, as shown in
a Table 1.
Table 1
Horsepower |
Level-1 energy consumption |
Level-2 energy consumption |
Level-3 energy consumption |
1P |
A11 |
A12 |
A13 |
1.5P |
A21 |
A22 |
A23 |
2P |
A31 |
A32 |
A33 |
3P |
A41 |
A42 |
A43 |
[0042] The type of the air conditioner corresponds to the horsepower and the energy consumption
level of the air conditioner. The horsepower and the energy consumption level of the
air conditioner can be determined by identifying the type of the air conditioner.
[0043] Further, the step S102 specifically includes:
a coefficient a0 of the second air conditioner is determined according to the type of the second air
conditioner;
coefficients a; of the n first air conditioners are determined according to the types
of the n first air conditioners; and
the power correction coefficients αi of the n first air conditioners are calculated according to a formula 4:
[0044] For example, the horsepower corresponding to the type of the second air conditioner
is IP, and the energy consumption level is the level-1 energy consumption, and then
a
0 is A11; a total of n first air conditioners are acquired and numbered from 1 to n,
where the horsepower corresponding to the type of the first air conditioner numbered
as 3 (i.e., i=3) is 3P, and the energy consumption level is the level-2 energy consumption;
and then a
3=A42; α
3=A42/A11 can be calculated according to the above information and formula 4. Similarly,
the coefficients α
i of the n first air conditioners, i.e., α
1, α
2, ..., α
n, can be calculated.
[0045] In some illustrative embodiments, the step S103 includes:
the correction power Pi of each of the n first air conditioners is calculated;
the average correction power P of the n first air conditioners is calculated according
to the correction power Pi of each of the n first air conditioners; and
the estimated power consumption W1 of the second air conditioner within the time period
T is calculated according to the average correction power P of the n first air conditioners.
[0046] Further,
the correction power P
i of each of the n first air conditioners is calculated according to a formula 1:
[0047] Further,
the average correction power P of the n first air conditioners is calculated according
to a formula 2:
[0048] Further,
the estimated power consumption W1 of the second air conditioner within the time period
T is calculated according to a formula 3:
[0049] In the above embodiment, a specific calculation method and a corresponding formula
for calculating the estimated power consumption W1 are given. The correction power
P
i of each first air conditioner is calculated after the types and state parameters
of the n first air conditioners are acquired; then, the calculated correction powers
P
i are averaged to calculate the average correction power P of the n first air conditioners,
i.e., the estimated power consumption of the second air conditioner within the time
period T in the first state before electricity-saving control; and then, P calculated
in the above step is multiplied by T to calculate the estimated power consumption
W1 of the second air conditioner within the time period T.
[0050] In some optional embodiments, the method further includes the quantity of saved electricity
of the second air conditioner after electricity-saving control is calculated. For
example, the actual power consumption W2 of the second air conditioner within the
time period T is calculated when the set temperature is adjusted from the first temperature
to the second temperature after the second air conditioner is subjected to electricity-saving
control; and then the quantity of saved electricity, i.e., a power consumption saving
value Δ W of the second air conditioner within the time period T is calculated according
to W1 and W2.
[0051] Further, the power consumption saving value Δ W of the second air conditioner within
the time period T is calculated according to a formula 5:
[0052] Further, the calculating the actual power consumption W2 specifically includes:
the operating parameters of the second air conditioner within the time period T are
acquired, including m times of powers Py reported by the second air conditioner within the time period T and an operating
time ty corresponding to each power Py;
the actual power consumption W2 is calculated according to a formula 6:
where y=1, 2, ... , m, and m is a positive integer not less than 1.
[0053] In the above embodiment, the actual power consumption W2 is calculated according
to the operating parameter of the second air conditioner within the time period T;
and the second air conditioner reports a current power when the power changes during
operation, so that at least one operating power within the time period T and the corresponding
operating time are acquired. Optionally, the operating parameters of the second air
conditioner within the time period T may be recorded in a local database, or acquired
from the cloud server or other devices.
[0054] In some illustrative embodiments, m first air conditioners having the same type as
the type of the second air conditioner are acquired first in the step S101, where
the m is a positive integer less than or equal to n. If m is less than n, n-m first
air conditioners are randomly acquired. If n is 100, the first air conditioners having
the same type as the type of the second air conditioner and using the first temperature
as the set temperature are acquired from the database first; and if only 60 first
air conditioners meet the condition in a current database, the first air conditioners
using the first temperature as the set temperature in the remaining 40 first air conditioners
are randomly acquired from the database. Further, the m first air conditioners and
the second air conditioner have the same type, and the power correction coefficient
α
i = 1. In the above embodiment, the first air conditioners having the same type as
the type of the second air conditioner are preferentially acquired from the database
to ensure that the operating environment of the extracted first air conditioners is
the most similar to the operating environment of the second air conditioner, thereby
improving the accuracy of the estimated power consumption.
[0055] In order to give specific descriptions of the above embodiments, FIG. 2 is a flow
chart of the method for estimating the power consumption of the air conditioner according
to an embodiment of the present invention. As shown in FIG. 2, the method includes:
step S201, a set temperature of the air conditioner of a user is adjusted from T11
to T12 according to an electricity-saving control solution;
step S202, the actual power consumption W2 of the air conditioner of the user within
the time period T, e.g., 10:00-11:00, is calculated according to the reported powers;
the data acquired according to the reported powers are as follows:
Pi=700W, 10 min; P2 = 1000W, 20 min; P3 = 800W, 15 min; and P4 = 600W, 15 min;
[0056] In the formula 6:
where m = 4,
W2 = 48 KW·min = 2880
∗10
3J.
[0057] Step S203, operating data of a plurality of air conditioners using T11 as the set
temperature in the same region are collected to calculate the estimated power consumption
W1.
[0058] Considering that the number of air conditioners having the same type in a certain
region may be different, we require collecting 100 air conditioners in the same region
to estimate the power consumption at the temperature T11. The air conditioners having
the same type are preferred. When the number of the air conditioners having the same
type is less than 100, the air conditioners are randomly selected to make up 100.
The power consumption W1 at the temperature T11 is estimated according to a weighted
average of the power consumptions of the 100 devices.
[0059] A method for calculating W1 is specifically as follows:
The method for calculating the power consumption of each first air conditioner is
the same as the formula 6. The number of the first air conditioners within the time
T in the same region is n, where n = 100; the respective operating time is t
ix; n = 1, 2, ..., n; x = 1, 2, ..., s; and
[0060] The correction power of each first air conditioner is
α
i = 1 when m = n, i.e., m = 100, and the average correction power P of the 100 first
air conditioners is calculated as follows:
[0061] The coefficient correction is performed according to the corresponding energy consumption
level and horsepower when m < 100, and the average correction power P of the 100 first
air conditioners is calculated as follows:
[0062] Finally, the estimated power consumption W1 is calculated according to the calculated
P:
[0063] Step S204, the quantity of saved electricity within 10:00-11:00 is calculated according
to the estimated power consumption W1 and the actual power consumption W2 of the air
conditioner of the user.
[0064] See Table 1 for the correction factor. Table 1 records the average unit energy consumption
of devices with the same horsepower and the same energy consumption level in the past
year.
[0065] For example, the air conditioner of a user in a certain region has 1p and a level-2
energy consumption and is operated for 1 hour when T11 is adjusted to T12; 60 air
conditioners with the same type are set at T11 within the 1 hour in the region; the
correction coefficients of the 60 air conditioners are α
1-60 = 1; the remaining 40 air conditioners are extracted from the air conditioners which
have other types and are set at T11 within 1 hour; and if the extracted air conditioners
have 1p and a level-1 energy consumption, the correction coefficients of the 40 air
conditioners are α
61-100=A12/A11.
[0066] The estimated power consumption W1 of the air conditioner of the user at the set
temperature of T11 is:
[0067] The above embodiment provides a specific implementation mode of the method for estimating
the power consumption of the air conditioner according to the present invention. In
the above embodiment, the estimated power consumption of the second air conditioner,
i.e., the air conditioner of the user, within 1 hour from 10:00 to 11:00 is calculated
according to the types of the 100 first air conditioners and the operating parameters
of each of the first air conditioners within 10:00-11:00. The power consumption of
the air conditioner converted in the present invention is more accurate than a mode
of calculating with the experimental data in the prior art. FIG. 3 shows a device
for estimating the power consumption of the air conditioner according to an embodiment
of the present invention. As shown in FIG. 3:
In some exemplary embodiments, the device for estimating the power consumption of
the air conditioner includes a signal receiver 301 and a processor 302.
[0068] The signal receiver 301 is configured to acquire types of the n first air conditioners
and operating parameters of each first air conditioner within the time period T. The
operating parameters include s times of powers P
ix reported by each of the first air conditioners within the time period T and an operating
time t
ix corresponding to each power P
ix; x = 1, 2, ..., s; s is a positive integer not less than 1; i = 1, 2, ..., n; and
n is a positive integer not less than 1.
[0069] The processor 302 is configured to determine the power correction coefficients α
i of the n first air conditioners according to the types of the n first air conditioners
and the type of the second air conditioner, and calculate the estimated power consumption
of the second air conditioner within the time period T according to the operating
parameters within the time period T and the power correction coefficient α
i of each of the n first air conditioners.
[0070] In the above embodiments, the estimated power consumption of the second air conditioner
within the time period T is calculated according to the types of the n first air conditioners
and the operating parameters of each of the first air conditioners within the time
period T. In the present embodiment, when the power consumption of the air conditioner
is estimated, the adopted data are not calculated according to the laboratory data,
but are acquired by taking the types and the operating parameters of the n first air
conditioners in the same region and within the same operating time period; and the
estimated power consumption W1 of the second air conditioner is calculated according
to the parameters. In the present embodiment, the operating parameters of the n first
air conditioners are collected within the same operating time period; and the parameters
are affected by geographic location, outdoor environment, indoor environment, house
type, machine type and other factors of each of the first air conditioners. In addition,
the estimated power consumption W1 of the second air conditioner also corresponds
to the time period. Thus, the power consumption of the air conditioner converted by
the present embodiment is more accurate than a mode of calculating with the experimental
data in the prior art.
[0071] In some optional embodiments, the set temperature of a second home appliance before
the electricity-saving control is the first temperature; and the set temperature after
the electricity-saving control is set to the second temperature. The set temperature
of the n first air conditioners taken in the above embodiment is the first temperature;
and the estimated power consumption calculated by the processor 302 is a power consumption
of the second home appliance within the operating time period T when the set temperature
is the first temperature. In the present embodiment, the second home appliance achieves
a purpose of saving electricity by adjusting the set temperature. Therefore, in the
present embodiment, the first state of the n first home appliances means that the
set temperature is the first temperature. The second state of the second home appliance
after the electricity-saving control means that the set temperature is the second
temperature.
[0072] In some optional embodiments, the signal receiver 301 can also be configured to acquire
the types and the operating parameters of the n first air conditioners from a cloud
server or other devices. The cloud server or other devices are configured to monitor
the operating states of the air conditioners in the same region, such as the first
state and the second state. When the power of the air conditioner changes, the air
conditioner may actively report the change to the server or other devices and inform
them of a current power. Therefore, the cloud server or other devices also record
the power of each air conditioner and the operating time corresponding to the power.
[0073] In some optional embodiments, the processor 302 can query the power correction coefficients
α
i of the n first air conditioners from a local or cloud server or other devices.
[0074] Optionally, the power correction coefficients α
i of the air conditioners of different types are recorded in a database of the local
or cloud server or other devices; and the power correction coefficients α
i of the first air conditioners can be directly queried according to the types of the
first air conditioners and the type of the second air conditioner.
[0075] Optionally, coefficients of the air conditioners corresponding to different horsepower
and different energy consumption levels are recorded in the database, as shown in
Table 1. The type of the air conditioner corresponds to the horsepower and the energy
consumption level of the air conditioner. The horsepower and the energy consumption
level of the air conditioner can be determined by identifying the type of the air
conditioner.
[0076] Further, the processor 302 is further configured to determine a coefficient a
0 of the second air conditioner according to the type of the second air conditioner,
determine coefficients a; of the n first air conditioners according to the types of
the n first air conditioners, and calculate the power correction coefficients α
i of the n first air conditioners according to a formula 4:
[0077] For example, the horsepower corresponding to the type of the second air conditioner
is IP, and the energy consumption level is the level-1 energy consumption, and then
a
0 is A11. A total of n first air conditioners are acquired and numbered as 1 to n,
where the horsepower corresponding to the type of the first air conditioner numbered
as 3 is 3P, and the energy consumption level is the level-2 energy consumption, and
then a
3=A42. α
3 = A42/A11 can be calculated according to the above information and formula 4. Similarly,
the coefficients α
i of the n first air conditioners, i.e., α
1, α
2, ..., α
n, can be calculated.
[0078] In some optional embodiments,
the processor 302 is further configured to calculate the correction power P
i of each of the n first air conditioners, calculate the average correction power P
of the n first air conditioners according to the correction power P
i of each of the n first air conditioners, and calculate the estimated power consumption
W1 of the second air conditioner within the time period T according to the average
correction power P of the n first air conditioners.
[0079] Further, the processor 302 is further configured to calculate the correction power
P
i of each of the n first air conditioners according to a formula 1:
[0080] Further, the processor 302 is further configured to calculate the average correction
power P of the n first air conditioners according to a formula 2:
[0081] Further, the processor 302 is further configured to calculate the estimated power
consumption W1 of the second air conditioner within the time period T according to
a formula 3:
[0082] In the above embodiment, a specific calculation method and a corresponding formula
for calculating the estimated power consumption W1 are given. The processor 302 calculates
the correction power P
i of each first air conditioner after the signal receiver 301 acquires the types and
state parameters of the n first air conditioners, then averages the calculated correction
powers P
i to calculate the average correction power P of the n first air conditioners, i.e.,
the estimated power consumption of the second air conditioner within the time period
T in the first state before electricity-saving control, and then multiplies P calculated
in the above step by T to calculate the estimated power consumption W1 of the second
air conditioner within the time period T.
[0083] In some optional embodiments, the processor 302 is further configured to calculate
the quantity of saved electricity of the second air conditioner after electricity-saving
control. For example, the processor 302 is configured to calculate the actual power
consumption W2 of the second air conditioner within the time period T when the set
temperature is adjusted from the first temperature to the second temperature after
the second air conditioner is subjected to electricity-saving control, and then calculate
the quantity of saved electricity, i.e., a power consumption saving value Δ W of the
second air conditioner within the time period T according to W1 and W2.
[0084] In some optional embodiments,
the processor 302 is further configured to calculate the power consumption saving
value Δ W of the second air conditioner within the time period T according to a formula
5:
[0085] In some optional embodiments,
the processor 302 is further configured to acquire the operating parameters of the
second air conditioner within the time period T, including
m times of powers P
y reported by the second air conditioner within the time period T and an operating
time t
y corresponding to each power P
y. The actual power consumption W2 is calculated according to a formula 6:
where y=1, 2, ... , m, and m is a positive integer not less than 1.
[0086] In the above embodiment, the actual power consumption W2 is calculated by the processor
302 according to the operating parameter of the second air conditioner within the
time period T; and the second air conditioner reports a current power when the power
changes during operation, so that at least one operating power within the time period
T and the corresponding operating time are acquired.
[0087] Optionally, the operating parameters of the second air conditioner within the time
period T may be recorded in a local database, or acquired from the cloud server or
other devices by the signal receiver 301.
[0088] It should be understood that the present invention is not limited to processes and
structures described above and shown in the accompanying drawings, and can be subjected
to various modifications and changes without departing from the scope thereof. The
scope of the present invention is only limited by the appended claims.
1. A method for estimating power consumption of an air conditioner, comprising:
acquiring types of n first air conditioners which are located in a same region with
a second air conditioner, and operating parameters of each of the first air conditioners
within a time period T, wherein the operating parameters include s times of powers
Pix reported by each of the first air conditioners within the time period T and an operating
time tix corresponding to each power Pix; i = 1, 2, ..., n; the n is a positive integer not less than 1; x = 1, 2, ..., s;
and the s is a positive integer not less than 1;
determining power correction coefficients αi of the n first air conditioners according to the types of the n first air conditioners
and the type of the second air conditioner; and
calculating an estimated power consumption W1 of the second air conditioner within
the time period T according to the operating parameters within the time period T and
the power correction coefficient αi of each of the n first air conditioners.
2. The method according to claim 1, wherein the calculating the estimated power consumption
of the second air conditioner within the time period T according to the operating
parameters within the time period T and the power correction coefficient α
i of each of the n first air conditioners comprises:
calculating a correction power Pi of each of the n first air conditioners;
calculating an average correction power P of the n first air conditioners according
to the correction power Pi of each of the n first air conditioners; and
calculating the estimated power consumption W1 of the second air conditioner within
the time period T according to the average correction power P of the n first air conditioners.
3. The method according to claim 2, wherein the correction power P
i of each of the n first air conditioners is calculated according to the following
formula:
4. The method according to any one of claims 1 to 3, wherein the determining the power
correction coefficients α
i of the n first air conditioners according to the types of the n first air conditioners
and the type of the second air conditioner comprises:
determining a coefficient a0 of the second air conditioner according to the type of the second air conditioner;
determining coefficients ai of the n first air conditioners according to the types of the n first air conditioners;
and
calculating the power correction coefficients αi of the n first air conditioners according to the following formula:
5. The method according to claim 4, wherein after calculating the estimated power consumption
of the second air conditioner within the time period T, the method further comprises:
calculating an actual power consumption W2 of the second air conditioner within the
time period T; and
calculating a power consumption saving value Δ W of the second air conditioner within
the time period T according to the following formula:
6. The method according to claim 5, wherein the calculating the actual power consumption
W2 of the second air conditioner within the time period T comprises:
acquiring the operating parameters of the second air conditioner within the time period
T, wherein the operating parameters include m times of powers Py reported by the second air conditioner within the time period T, and an operating
time ty corresponding to each power Py; and
calculating the actual power consumption W2 according to the following formula:
wherein y = 1, 2, ... , m, and the m is a positive integer not less than 1.
7. A device for estimating power consumption of an air conditioner, comprising a signal
receiver and a processor, wherein
the signal receiver is configured to acquire types of n first air conditioners which
are located in a same region with a second air conditioner, and operating parameters
of each of the first air conditioners within a time period T; wherein the operating
parameters include s times of powers Pix reported by each of the first air conditioners within the time period T and an operating
time tix corresponding to each power Pix, wherein the x = 1, 2, ..., s; the s is a positive integer not less than 1; i = 1,
2, ..., n; the n is a positive integer not less than 1; and
the processor is configured to determine power correction coefficients αi of the n first air conditioners according to the types of the n first air conditioners
and the type of the second air conditioner, and calculate an estimated power consumption
of the second air conditioner within the time period T according to the operating
parameters within the time period T and the power correction coefficient αi of each of the n first air conditioners.
8. The device according to claim 7, wherein
the processor is further configured to calculate a correction power Pi of each of the n first air conditioners, calculate an average correction power P
of the n first air conditioners according to the correction power Pi of each of the n first air conditioners, and calculate the estimated power consumption
W1 of the second air conditioner within the time period T according to the average
correction power P of the n first air conditioners.
9. The device according to claim 8, wherein
the processor is further configured to calculate the correction power P
i of each of the n first air conditioners according to the following formula:
10. The device according to any one of claims 7 to 9, wherein
the processor is further configured to determine a coefficient a
0 of the second air conditioner according to the type of the second air conditioner,
determine coefficients a
i of the n first air conditioners according to the types of the n first air conditioners,
and
calculate the power correction coefficients α
i of the n first air conditioners according to the following formula:
11. The device according to claim 10, wherein
the processor is further configured to acquire the operating parameters of the second
air conditioner within the time period T, wherein the operating parameters include
m times of powers P
y reported by the second air conditioner within the time period T and an operating
time t
y corresponding to each power P
y,
calculate the actual power consumption W2 according to the following formula:
wherein y = 1, 2, ... , m, and m is a positive integer not less than 1, and
calculate a power consumption saving value Δ W of the second air conditioner within
the time period T according to the following formula: