CN103630739A - Method and system for measuring power consumption of air conditioner - Google Patents

Abstract

The invention is applicable to the field of air conditioner electrical parameter measurement and provides a method and system for measuring power consumption of an air conditioner. In the method and system for measuring power consumption of the air conditioner, real-time timing data is generated through presetting a stage power measurement time interval and timing; when the timing data is equal to the stage power measurement time interval, the power of an outdoor unit and the power of an indoor unit of the air conditioner are respectively obtained; through combing the timing data, the power of the outdoor unit and the power of the indoor unit, stage electric quantity data of the air conditioner within the stage power measurement time interval is calculated; and at last, according to the stage electric quantity data, previously-obtained accumulated electric quantity data stored in a preset storage space is updated to be current accumulated electric quantity data when an air conditioner automatic-startup machine operates to the current moment, so that the power consumption of the air conditioner is timely and accurately measured without adding any measuring circuit, and the problems that by utilizing a conventional method for measuring the power consumption of the air conditioner, the power consumption of the air conditioner cannot be accurately obtained, and the cost is high are solved.

Description

A kind of air conditioner power consumption measuring method and system

Technical field

The invention belongs to air conditioner electric parameter measurement field, relate in particular to a kind of air conditioner power consumption measuring method and system.

Background technology

At present, along with being widely used of air conditioner, because the power consumption of air conditioner is larger, cause its electric cost expenditure producing to occupy very large proportion in user's total electric cost expenditure monthly, therefore, user need to inquire about its power consumption when using air conditioner, so that the electric weight consuming while moving according to air conditioner carries out suitable use to air conditioner, thereby avoid because excessively using air conditioner to cause electricity consumption waste, and increase electric cost expenditure.

For above-mentioned user, need to carry out to air conditioner the demand of power consumption inquiry, prior art provides three kinds of methods of measuring air conditioner power consumption.The first is operating voltage and the working current of measuring respectively air conditioner by the power input installation voltage detection module at air conditioner and current detection module, and then according to the power consumption of this operating voltage and working current measurement air conditioner, although this kind of method can reach the object of measuring power consumption, because it need to increase voltage detection module and current detection module causes air conditioner cost to increase; The second is by calculating its power consumption according to the present mode of operation of air conditioner, but because the opening loading under different operating modes in air conditioner is different, actual power consumption amount is also different, therefore cannot be according to the power consumption of actual load condition Measurement accuracy air conditioner; The third is by detecting the operating voltage of off-premises station of air conditioner and working current to calculate the power consumption of whole air conditioner, yet the power consumption calculating does not comprise the power consumption of the indoor set of air conditioner, so this kind of measuring method can not be obtained the power consumption of air conditioner exactly.Therefore, the power consumption that the method for existing measurement air conditioner power consumption cannot Obtaining Accurate air conditioner, and there is the problem that cost is high.

Summary of the invention

The object of the present invention is to provide a kind of air conditioner power consumption measuring method, be intended to solve the power consumption that the method for existing measurement air conditioner power consumption cannot Obtaining Accurate air conditioner, and have the problem that cost is high.

The present invention is achieved in that a kind of air conditioner power consumption measuring method, and described air conditioner power consumption measuring method comprises the following steps:

A. preset stage power measuring intervals of TIME and start timing;

B. generate in real time chronometric data;

C. judge whether described chronometric data equals described stage power measuring intervals of TIME, is, performs step d, no, return to step b;

D. according to the operating voltage of air-conditioner outdoor unit and working current, obtain off-premises station power;

E. according to the duty of each load in indoor apparatus of air conditioner, obtain indoor set power;

F. according to described off-premises station power, described indoor set power and described chronometric data, obtain stage electric quantity data;

G. according to described stage electric quantity data, the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to current accumulative total electric quantity data, and judge that whether air conditioner is in running order, be to jump to step a, no, finish power consumption and measure process.

Another object of the present invention is to provide a kind of air conditioner power consumption measuring system, described air conditioner power consumption measuring system comprises:

Set of time unit, for default stage power measuring intervals of TIME;

Timing unit, for timing the real-time chronometric data that generates;

Time judging unit, for judging whether described chronometric data equals described stage power measuring intervals of TIME;

The first jump-transfer unit, for returning to described timing unit when described time judging unit when the determination result is NO;

Off-premises station power acquiring unit, for obtaining off-premises station power according to the operating voltage of air-conditioner outdoor unit and working current;

Indoor set power acquiring unit, for obtaining indoor set power according to the duty of each load of indoor apparatus of air conditioner;

Stage electric weight acquiring unit, for obtaining stage electric quantity data according to described off-premises station power, described indoor set power and described chronometric data;

Storage unit, for storing accumulative total electric quantity data;

Electric quantity data updating block, for being updated to current accumulative total electric quantity data according to described stage electric quantity data by being stored in the accumulative total electric quantity data that once obtained before default storage space;

Duty judging unit, whether in running order for judging air conditioner;

The second jump-transfer unit, for jumping to described set of time unit when judgment result is that of described duty judging unit is;

Process end unit, measures process for finish power consumption when the determination result is NO when described duty judging unit.

In the present invention, by setting in advance the one-phase power measurement time interval timing, generate real-time chronometric data, when described chronometric data equals described stage power measuring intervals of TIME, obtain respectively described off-premises station power and the described indoor set power of air conditioner, again in conjunction with described chronometric data, described off-premises station power and the stage electric quantity data of described indoor set power calculation air conditioner in described stage power measuring intervals of TIME, finally according to described stage electric quantity data, the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to air conditioner and from start, moves to the current accumulative total electric quantity data of current time, thereby reach, the power consumption of air conditioner is measured in real time accurately not needing to increase under the prerequisite of any metering circuit, solved the power consumption that the method for existing measurement air conditioner power consumption cannot Obtaining Accurate air conditioner, and there is the problem that cost is high.

Accompanying drawing explanation

Fig. 1 is the realization flow figure of the air conditioner power consumption measuring method that provides of the embodiment of the present invention;

Fig. 2 is that in the air conditioner power consumption measuring method that provides of the embodiment of the present invention, blower fan drives dutycycle and power of fan graph of a relation;

Fig. 3 is that in the air conditioner power consumption measuring method that provides of the embodiment of the present invention, blower fan drives dutycycle and blower fan to heat the graph of a relation of power;

Fig. 4 is the realization flow figure of the air conditioner power consumption measuring method that provides of another embodiment of the present invention;

Fig. 5 is the example relationship figure that in the air conditioner power consumption measuring method that provides of the embodiment of the present invention, blower fan drives dutycycle and power of fan;

Fig. 6 is that in the air conditioner power consumption measuring method that provides of the embodiment of the present invention, blower fan drives dutycycle and blower fan to heat the example relationship figure of power;

Fig. 7 is the structural drawing of the air conditioner power consumption measuring system that provides of the embodiment of the present invention;

Fig. 8 is the structural drawing of the air conditioner power consumption measuring system that provides of another embodiment of the present invention.

Embodiment

In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

In embodiments of the present invention, by setting in advance the one-phase power measurement time interval timing, generate real-time chronometric data, when this chronometric data equals stage power measuring intervals of TIME, obtain respectively off-premises station power and the indoor set power of air conditioner, again in conjunction with chronometric data, off-premises station power and the stage electric quantity data of indoor set power calculation air conditioner in stage power measuring intervals of TIME, finally according to stage electric quantity data, the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to air conditioner and from start, moves to the current accumulative total electric quantity data of current time, thereby reach, the power consumption of air conditioner is measured in real time accurately not needing to increase under the prerequisite of any metering circuit.

Fig. 1 shows the realization flow of the air conditioner power consumption measuring method that the embodiment of the present invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and details are as follows:

In step S1, default stage power measuring intervals of TIME also starts timing.

In step S2, generate in real time chronometric data.

In step S3, judge whether chronometric data equals stage power measuring intervals of TIME, is, performs step S4, no, return to step S2.

In step S4, according to the operating voltage of air-conditioner outdoor unit and working current, obtain off-premises station power.Step S4 specifically comprises the following steps:

An ac working power supply cycle or half ac working power supply cycle are on average divided into specific quantity and identical time period of time width;

Obtain the finish time in each time period to the operating voltage of off-premises station and working current;

According to the operating voltage of obtained off-premises station and working current, calculate the timesharing power that off-premises station consumes within each time period;

The quantity rated output average of the time period that the timesharing power consuming within each time period according to off-premises station and ac working power supply cycle comprise is as off-premises station power.

Wherein, an ac working power supply cycle or half ac working power supply cycle are on average being divided in the step of the time period that specific quantity and time width are identical, the span of the quantity of time period is between 3 to 50, this span is hour to cause the deviation of follow-up obtained off-premises station power larger very much for fear of the quantity value of time period, and avoids causing too greatly the problem too numerous and diverse to the computation process of off-premises station power because of value simultaneously.

The step of calculating the timesharing power that off-premises station consumes within each time period according to the operating voltage of obtained off-premises station and working current is according to rating formula, is about to the product of operating voltage and working current as timesharing power.If working current is I _k, operating voltage is U _k, timesharing power P _k=I _ku _k.

The quantity rated output average of the time period that the power consuming within each time period according to off-premises station and power cycle comprise is that mean value by calculating the power that in time period of a cycle in ac working power supply cycle or half ac working power supply specific quantity in the cycle, off-premises station consumes is to obtain off-premises station power as the step of off-premises station power.The quantity in the cycle as an ac working power supply with the time period of same time width is n, off-premises station power $P_w=\frac{1}{n}\·\underset{k=1}{\overset{n}{\mathrm{\Σ}}}{P}_k=\frac{1}{n}\·\underset{k=1}{\overset{n}{\mathrm{\Σ}}}(I_k\·U_k).$

In step S5, according to the duty of each load in indoor apparatus of air conditioner, obtain indoor set power.

When air conditioner runs on refrigeration mode, step S5 specifically comprises the following steps:

According to the driving dutycycle of current blower fan, calculate power of fan;

According to the duty of indoor set display screen, calculate bright light power;

The circuit board power consuming while obtaining the work of indoor set circuit board;

Power of fan, bright light power and circuit board power are carried out to summation operation and obtain indoor set power.

Wherein, for calculate the step of power of fan according to the driving dutycycle of current blower fan, due to desirable power of fan P _fthe driving dutycycle d relevant (as shown in Figure 2) of calculating and current blower fan:

Work as d<d ₁time, P _f=P ₁;

Work as d _n-1≤ d<d _ntime, $P_f=(P_n-P_{n-1})\&CenterDot;\frac{(d-d_{n-1})}{(d_n-d_{n-1})}+P_{n-1};$

Work as d _mduring≤d, P _f=P _m.

M is positive integer, and its span is 3 to 50, n to be positive integer and 1<n≤m; As shown in Figure 2, the driving dutycycle d of blower fan ₁~ d _mcorresponding blower fan refrigeration work consumption P ₁~ P _m, and different blower fan types has different blower fan refrigeration work consumptions, and power span is 0W ~ 100W; Wherein, drive dutycycle d ₁~ d _mspan as shown in the table:

d 1

d 2

d 3

d 4

...

d n

...

d m

0~50%

d 1~60%

d 2~65%

d 3~70%

d n-1~100%

d m-1~100%

Because in the course of the work, power of fan is also relevant with the wind guide strip angle of air outlet of indoor set again, therefore, and power of fan P _f=P _fh, h is wind guide strip angle augmenting factor, and the value of h depends on the angle difference D of current wind guide strip angle and wind guide strip standard angle, the relation of the value of h and angle difference D is as shown in the table:

D	<-20°	-20°~-10°	-10°~-5°	-5°~5°	5°~10°	10°~20°	>20°
								h	94%	95%	98%	100%	102%	105%	108%

For calculate the step of bright light power, bright light power P according to the duty of indoor set display screen _jit is the power P of warning light in display screen ₁with the power P ＂ sum of display screen control panel, wherein P ₁for the general power of current all warning lights in illuminating state, i.e. P ₁=P'X, P' is the power (span is 0 ~ 10W) that single warning light consumes while lighting, X is the quantity of the warning light in illuminating state, and the power P ＂ of display screen control panel does not comprise the power that all warning lights consume when illuminating state, and the span of P ＂ is 0 ~ 5W.

For the step of obtaining the circuit board power consuming when indoor set circuit board is worked, circuit board power P _gthe general power P consuming when all components and parts are worked on circuit board _athe power P consuming when main control chip is worked on (span is 0 ~ 10W) and circuit board _b(span is 0 ~ 5W), i.e. P _g=P _a+ P _b.

For the step of power of fan, bright light power and circuit board power being carried out to summation operation acquisition indoor set power, be by above-mentioned power of fan P _f, bright light power P _jand circuit board power P _gsue for peace and obtain the indoor set power P when refrigeration mode _n, i.e. P _n=P _f+ P _j+ P _g.

When air conditioner runs on heating mode, step S5 specifically comprises the following steps:

According to the driving dutycycle of current blower fan, calculate power of fan and electric auxiliary thermal power;

According to the duty of indoor set display screen, calculate bright light power;

The circuit board power consuming while obtaining the work of indoor set circuit board;

Power of fan, electric auxiliary thermal power, bright light power and circuit board power are carried out to summation operation and obtain indoor set power.

Wherein, calculate in the step of power of fan and electric auxiliary thermal power according to the driving dutycycle of current blower fan, the computing method of the computing method of power of fan during with above-mentioned refrigeration mode are identical, and power of fan is P _f; For the calculating of the auxiliary thermal power of electricity, due to the auxiliary thermal power P of electricity _trelevant with the driving dutycycle d of current blower fan:

Work as d<d ₁time, P _t=P ₁;

Work as d _t-1≤ d<d _ttime, $P_T=(P_t-P_{t-1})\&CenterDot;\frac{(d-d_{t-1})}{(d_t-d_{t-1})}+P_{t-1};$

Work as d _kduring≤d, P _t=P _k.

K is positive integer, and its span is 3 to 50, t to be positive integer and 1<t≤k; As shown in Figure 3, the driving dutycycle d of blower fan ₁~ d _kcorresponding blower fan heats power P ₁~ P _k, and different blower fan types has different blower fans and heats power, and the span that blower fan heats power is 50W ~ 2500W; Wherein, drive dutycycle d ₁~ d _kspan as shown in the table:

d 1

d 2

d 3

d 4

...

d t

...

d k

0~50%

d 1~60%

d 2~65%

d 3~70%

d t-1~100%

d k-1~100%

When heating mode, consistent with described in refrigeration mode of the step of the circuit board power consuming when calculating the step of bright light power and obtaining the work of indoor set circuit board according to the duty of indoor set display screen, so repeat no more.

For the step of power of fan, bright light power and circuit board power being carried out to summation operation acquisition indoor set power, be by power of fan P _f, electric auxiliary thermal power P _t, bright light power P j and circuit board power P _gsue for peace and obtain the indoor set power P when heating mode _n, i.e. P _n=P _f+ P _t+ P _j+ P _g.

Anion generator is installed in indoor set, and anion generator is while starting work in refrigeration mode, step S5 also specifically comprises the following steps:

According to the driving dutycycle of current blower fan, calculate power of fan;

According to the duty of indoor set display screen, calculate bright light power;

The circuit board power consuming while obtaining the work of indoor set circuit board;

The negative ion power consuming while obtaining anion generator work;

Power of fan, bright light power, circuit board power and negative ion power are carried out to summation operation and obtain indoor set power.

Wherein, negative ion power P _rfor the power P ＇ of anion generator in normal opening _rwith anion generator at the work dutycycle D in the corresponding time interval with above-mentioned chronometric data _rproduct, i.e. P _r=P ＇ _rd _r, P ＇ _rvalue along with the difference of anion generator specification difference, its span is 0.5W ~ 50W.So, indoor set power P _n=P _f+ P _t+ P _j+ P _g+ P _r.

In step S6, according to off-premises station power, indoor set power and chronometric data, obtain stage electric quantity data.Step S6 specifically comprises the following steps:

Off-premises station power and indoor set power are carried out to summation operation and obtain stage general power;

Stage general power and chronometric data are carried out to product calculation and obtain stage electric quantity data.

Wherein, general power P equals off-premises station power P the stage _wwith indoor set power P _nsum, i.e. P=P _w+ P _n; Stage electric quantity data W ₁equal stage general power P and chronometric data T ₁product, i.e. W ₁=PT ₁.

In step S7, according to stage electric quantity data, the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to current accumulative total electric quantity data, and judges that whether air conditioner is in running order, be, jump to step S1, no, finish power consumption and measure process.

Wherein, the step that according to stage electric quantity data, the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to current accumulative total electric quantity data specifically comprises the following steps:

The accumulative total electric quantity data that once obtained before in stage electric quantity data and default storage space is carried out to summation operation and obtain current accumulative total electric quantity data;

By the Data Update in default storage space, it is this current accumulative total electric quantity data.

Wherein, the accumulative total electric quantity data that once obtained before supposing in default storage space is W _e, current accumulative total electric quantity data is W, current accumulative total electric quantity data W is W _ewith stage electric quantity data W ₁sum, i.e. W=W ₁+ W _e.

In addition, in order to improve the accuracy rate of accessed indoor set power, avoid causing measured indoor set power that deviation also occurs because deviation appears in indoor set alternating voltage thereupon, in another embodiment of the present invention, between step S5 and step S6, also comprise that step S601(as shown in Figure 4).

In step S601, the alternating voltage received according to indoor set carries out correcting process to indoor set power.Step S601 specifically comprises the following steps:

Alternating voltage and standard line voltage that indoor set is received compare and obtain voltage correction factor;

According to voltage correction factor, indoor set power is revised.

Wherein, for the step that the received alternating voltage of indoor set and standard line voltage were compared and obtained voltage correction factor, the received alternating voltage of indoor set is from off-premises station, and this alternating voltage is current supply voltage; The value of voltage correction factor a depends on the ac voltage V that indoor set is received _in, for different indoor sets, its voltage correction factor a is also different, during the span of voltage correction factor a 50% ~ 150%.For example, for a certain indoor set, as shown in the table, work as V _inin the time of in scope in standard line voltage 220V ± 5V, voltage correction factor is 100%; Work as V _inwhile being less than 215V, voltage correction factor is 98%; Work as V _inwhile being greater than 225V, voltage correction factor is 105%.

V in	<215V	215V~225V	>225V
				a	98%	100%	105%

For the step of indoor set power being revised according to voltage correction factor, after getting voltage correction factor a, using the product of obtained indoor set power and voltage correction factor a as revised indoor set power.

Below in conjunction with instantiation, above-mentioned air conditioner power consumption measuring method is described further:

When air conditioner runs on refrigeration mode, for off-premises station, suppose that an ac working power supply cycle is on average divided into 30 time periods that have with same time width, i.e. the working current I of n=30, and off-premises station _kwith operating voltage U _kvalue in each time period is all identical, i.e. I _k=1A, U _k=220V, off-premises station power $P_w=\frac{1}{30}\&CenterDot;(I_k\&CenterDot;U_k)\&CenterDot;30=\frac{1}{30}\&CenterDot;(1\&CenterDot;220)\&CenterDot;30=220W.$

For indoor set, according to the relation between the driving dutycycle d of the desirable power of fan Pf shown in Fig. 2 and current blower fan, set m=4, P ₁=10W, P ₂=15W, P ₃=25W, P ₄=35W, d ₁=10%, d ₂=45%, d ₃=65%, d ₄=85%(is as shown in Figure 5), when fan operation speed is 1000 revs/min, d=55%, d ₂<d<d ₃so,, current desirable power of fan is:

$P_f=(P_3-P_2)\&CenterDot;\frac{(d-d_2)}{(d_3-d_2)}+P_2=(25-15)\&CenterDot;\frac{(55\%-45\%)}{(65\%-45\%)}+15=20W$

Suppose that wind guide strip standard angle is 65 degree, and when wind guide strip is rocked to 56 while spending according to user's straighforward operation, angle difference D between current wind guide strip angle and wind guide strip standard angle is-9 degree, known according to the relation table between aforesaid wind guide strip angle augmenting factor h and angle difference D, h=98%, so power of fan P _f=20W98%=19.6W; Suppose power P when single warning light is lighted on the display screen of indoor set '=0.06W, the power P ＂=0.5W of display screen control panel, and under refrigeration mode, the warning light number X=15 lighting on display screen, bright light power P _j=P'X+P ＂=0.0615+0.5=1.4W; The general power P consuming while supposing all components and parts work of indoor set circuit board _a=2W, the power P consuming when main control chip is worked on circuit board _b=0.5W, circuit board power P _g=P _a+ P _b=2W+0.5W=2.5W, so, indoor set power P _n=P _f+ P _j+ P _g=19.6W+1.4W+2.5W=23.5W.As chronometric data T ₁while equaling stage power measuring intervals of TIME (being assumed to be 1 minute, 1/60 hour), the stage general power P=P of air conditioner _w+ P _n=220W+23.5W=243.5W, stage electric quantity data is:

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002048828200042.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=P\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="T"\; filenames="HDA00002048828200042.png"\; state="\{\{state\}\}">T</figure-callout>}}_1=243.5W\&CenterDot;\frac{1}{60}h=4.06\mathrm{Wh}$

If the stage electric quantity data of follow-up each minute is 4.06Wh, and air conditioner working time be 1 hour, its total electric weight is W ₁60=4.06Wh60=243.6Wh.

If during in refrigeration mode, the anion generator in indoor set is also opened, and supposes the power P ＇ of anion generator in normal opening at above-mentioned air conditioner simultaneously _r=50W, anion generator with above-mentioned chronometric data T ₁work dutycycle D in the corresponding time interval _r=50%, the negative ion power P consuming when anion generator is worked _r=P ＇ _rd _r=50W50%=25W, above-mentioned indoor set power P _nin adding P _rafter equal 23.5W+25W=48.5W, the stage general power of air conditioner is so:

P=243.5W+48.5W=292W

Stage electric quantity data is:

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002048828200042.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=292W\&CenterDot;\frac{1}{60}h=4.87\mathrm{Wh}$

Total electric weight that air conditioner operation consumes for 1 hour is 4.87Wh * 60=292.2Wh.

Accept above-mentioned air conditioner and work in refrigeration mode, and anion generator opens simultaneously, if also need according to the received alternating voltage V of indoor set _into indoor set power P _nwhile revising, suppose V _in=250V, from the aforementioned content of the present embodiment, voltage correction factor a=105%, indoor power is:

P _r=48.5W·105%=50.925W

The stage general power of air conditioner is:

P=243.5W+50.925W=294.425W

Stage electric quantity data is:

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002048828200042.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=294.425W\&CenterDot;\frac{1}{60}h=4.91\mathrm{Wh}$

Total electric weight that air conditioner operation consumes for 1 hour is 4.91Wh * 60=294.6Wh.

When air conditioner works in heating mode, according to the auxiliary thermal power P of the electricity shown in Fig. 3 _tand the relation between the driving dutycycle d of current blower fan, sets k=5, P ₁=550W, P ₂=590W, P ₃=630W, P ₄=700W, P ₅=800W, d ₁=8%, d ₂=18%, d ₃=48%, d ₄=68%, d ₅=85%(is as shown in Figure 6), when fan operation speed is 1000 revs/min, d=55%, d ₃<d<d ₄so,, the auxiliary thermal power of current electricity $P_T=(P_4-P_3)\&CenterDot;\frac{(d-d_3)}{(d_4-d_3)}+P_3=(700-630)\&CenterDot;\frac{(55\%-48\%)}{(68\%-48\%)}+630=654.5W,$ Suppose off-premises station power P _w, power of fan P _f, bright light power P _j, circuit board power P _gand chronometric data T ₁identical when the refrigeration mode with above-mentioned air conditioner, and no-voltage correction, the indoor set power P under heating mode _n=P _f+ P _t+ P _j+ P _g=19.6W+654.5W+1.4W+2.5W=678W, the stage general power of air conditioner is:

P=P _w+P _n=220W+678W=898W

Stage electric quantity data $W_{}$ ${}_1=P\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="T"\; filenames="HDA00002048828200042.png"\; state="\{\{state\}\}">T</figure-callout>}}_1=898W\&CenterDot;\frac{1}{60}h=14.97\mathrm{Wh},$ If the stage electric quantity data of follow-up each minute is 14.97Wh, and air conditioner working time be 1 hour, its total electric weight is:

14.97Wh×60=898.2Wh。

One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.

Fig. 7 shows the structure of the air conditioner power consumption measuring system that the embodiment of the present invention provides, and for convenience of explanation, only shows part related to the present invention, and details are as follows:

Air conditioner power consumption measuring system comprises:

Set of time unit 110, for default stage power measuring intervals of TIME;

Timing unit 120, for timing the real-time chronometric data that generates;

Time judging unit 130, for judging whether chronometric data equals stage power measuring intervals of TIME;

The first jump-transfer unit 140, for returning to timing unit 120 when time judging unit 130 when the determination result is NO;

Off-premises station power acquiring unit 150, for obtaining off-premises station power according to the operating voltage of air-conditioner outdoor unit and working current;

Indoor set power acquiring unit 160, for obtaining indoor set power according to the duty of each load of indoor apparatus of air conditioner;

Stage electric weight acquiring unit 170, for obtaining stage electric quantity data according to off-premises station power, indoor set power and chronometric data;

Storage unit 180, for storing accumulative total electric quantity data;

Electric quantity data updating block 190, for being updated to current accumulative total electric quantity data according to stage electric quantity data by being stored in the accumulative total electric quantity data that once obtained before default storage space;

Duty judging unit 200, whether in running order for judging air conditioner;

The second jump-transfer unit 210, for jumping to set of time unit 110 when judgment result is that of duty judging unit 200 is;

Process end unit 220, measures process for finish power consumption when the determination result is NO when duty judging unit 200.

Further, off-premises station power acquiring unit 150 comprises:

Power cycle is cut apart subelement 151, for an ac working power supply cycle or half ac working power supply cycle are on average divided into specific quantity and identical time period of time width;

Electrical quantity obtains subelement 152, for the finish time in each time period the operating voltage of off-premises station and working current being obtained;

Timesharing power obtains subelement 153, for calculating according to the operating voltage of obtained off-premises station and working current the timesharing power that off-premises station consumes within each time period;

Off-premises station power obtains subelement 154, and the quantity rated output average of the time period comprising for the timesharing power that consumes within each time period according to off-premises station and ac working power supply cycle is as off-premises station power.

Further, indoor set power acquiring unit 160 comprises:

Blower fan and electric auxiliary thermal power are obtained subelement 161, for when air conditioner runs on refrigeration mode, according to the driving dutycycle of current blower fan, calculate power of fan, when air conditioner runs on heating mode, according to the driving dutycycle of current blower fan, calculate power of fan and electric auxiliary thermal power;

Bright light power obtains subelement 162, for calculating bright light power according to the duty of indoor set display screen;

Circuit board power obtains subelement 163, for obtaining the circuit board power consuming when indoor set circuit board is worked;

Negative ion power obtains subelement 164, for obtaining the negative ion power consuming when anion generator is worked;

Indoor set power obtains subelement 165, for when air conditioner is during in refrigeration mode, power of fan, bright light power, circuit board power are carried out to summation operation and obtain indoor set power, when air conditioner is during in heating mode, power of fan, electric auxiliary thermal power, bright light power and circuit board power are carried out to summation operation and obtain indoor set power, when air conditioner is during in refrigeration mode and anion generator startup work, power of fan, bright light power, circuit board power and negative ion power are carried out to summation operation and obtain indoor set power.

Further, stage electric weight acquiring unit 170 comprises:

Stage general power computation subunit 171, obtains stage general power for off-premises station power and indoor set power are carried out to summation operation;

Stage electric quantity data operator unit 172, obtains stage electric quantity data for stage general power and chronometric data are carried out to product calculation.

Further, electric quantity data updating block 190 comprises:

Current accumulative total electric weight obtains subelement 191, for the accumulative total electric quantity data that once obtained before stage electric quantity data and storage unit 180 being carried out to summation operation, obtains current accumulative total electric quantity data;

Data Update subelement 192, for by the Data Update of storage unit 180 being this current accumulative total electric quantity data.

In order to improve the accuracy rate of accessed indoor set power, avoid causing measured indoor set power that deviation also occurs thereupon because deviation appears in indoor set alternating voltage, in another embodiment of the present invention, as shown in Figure 8, air conditioner power consumption measuring system also comprises:

Indoor set power correction unit 230, for carrying out correcting process according to the received alternating voltage of indoor set to indoor set power.

Further, indoor set power correction unit 230 comprises:

Voltage correction factor obtains subelement 231, for received alternating voltage and the standard line voltage of indoor set compared and obtain voltage correction factor;

Power correction subelement 232, for revising indoor set power according to voltage correction factor.

In embodiments of the present invention, set of time unit 110, timing unit 120, time judging unit 130, the first jump-transfer unit 140, indoor set power acquiring unit 160, stage electric weight acquiring unit 170, storage unit 180, electric quantity data updating block 190, duty judging unit 200, the second jump-transfer unit 210, process end unit 220 and indoor set power correction unit 230 all can be built in the master control borad of indoor apparatus of air conditioner, off-premises station power acquiring unit 150 can be built in the master control borad of air-conditioner outdoor unit, off-premises station power acquiring unit 150 just can utilize existing voltage detecting circuit and current detection circuit in off-premises station to obtain respectively operating voltage and the working current of off-premises station like this, and after obtaining off-premises station power, off-premises station power data is sent to the master control borad of indoor set, then the indoor set power acquiring unit 160 in the master control borad of indoor apparatus of air conditioner, stage electric weight acquiring unit 170, storage unit 180, electric quantity data updating block 190 cooperatings are to obtain the total electricity consumption data of air conditioner.

In embodiments of the present invention, by setting in advance the one-phase power measurement time interval timing, generate real-time chronometric data, when this chronometric data equals stage power measuring intervals of TIME, obtain respectively off-premises station power and the indoor set power of air conditioner, again in conjunction with chronometric data, off-premises station power and the stage electric quantity data of indoor set power calculation air conditioner in stage power measuring intervals of TIME, finally according to stage electric quantity data, the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to air conditioner and from start, moves to the current accumulative total electric quantity data of current time, thereby reach, the power consumption of air conditioner is measured in real time accurately not needing to increase under the prerequisite of any metering circuit, solved the power consumption that the method for existing measurement air conditioner power consumption cannot Obtaining Accurate air conditioner, and there is the problem that cost is high.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (12)

1. an air conditioner power consumption measuring method, is characterized in that, described air conditioner power consumption measuring method comprises the following steps:

A. preset stage power measuring intervals of TIME and start timing;

B. generate in real time chronometric data;

C. judge whether described chronometric data equals described stage power measuring intervals of TIME, is, performs step d, no, return to step b;

D. according to the operating voltage of air-conditioner outdoor unit and working current, obtain off-premises station power;

E. according to the duty of each load in indoor apparatus of air conditioner, obtain indoor set power;

F. according to described off-premises station power, described indoor set power and described chronometric data, obtain stage electric quantity data;

G. according to described stage electric quantity data, the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to current accumulative total electric quantity data, and judge that whether air conditioner is in running order, be to jump to step a, no, finish power consumption and measure process.

2. air conditioner power consumption measuring method as claimed in claim 1, is characterized in that, described steps d specifically comprises the following steps:

An ac working power supply cycle or half ac working power supply cycle are on average divided into specific quantity and identical time period of time width;

Obtain the finish time in each time period to the operating voltage of off-premises station and working current;

According to described operating voltage and described working current, calculate the timesharing power that off-premises station consumes within described each time period;

The quantity rated output average of the timesharing power consuming within described each time period at off-premises station according to off-premises station and described time period is as off-premises station power.

3. air conditioner power consumption measuring method as claimed in claim 1, is characterized in that, when air conditioner runs on refrigeration mode, described step e specifically comprises the following steps:

According to the driving dutycycle of current blower fan, calculate power of fan;

According to the duty of indoor set display screen, calculate bright light power;

The circuit board power consuming while obtaining the work of indoor set circuit board;

Described power of fan, described bright light power and described circuit board power are carried out to summation operation and obtain indoor set power.

4. air conditioner power consumption measuring method as claimed in claim 1, is characterized in that, when air conditioner runs on heating mode, described step e specifically comprises the following steps:

According to the driving dutycycle of current blower fan, calculate power of fan and electric auxiliary thermal power;

According to the duty of indoor set display screen, calculate bright light power;

The circuit board power consuming while obtaining the work of indoor set circuit board;

Described power of fan, the auxiliary thermal power of described electricity, described bright light power and described circuit board power are carried out to summation operation and obtain indoor set power.

5. air conditioner power consumption measuring method as claimed in claim 1, is characterized in that, anion generator is installed in indoor set, and described anion generator is while starting work in refrigeration mode, and described step e specifically comprises the following steps:

According to the driving dutycycle of current blower fan, calculate power of fan;

According to the duty of indoor set display screen, calculate bright light power;

The circuit board power consuming while obtaining the work of indoor set circuit board;

The negative ion power consuming while obtaining anion generator work;

Described power of fan, described bright light power, described circuit board power and described negative ion power are carried out to summation operation and obtain indoor set power.

6. air conditioner power consumption measuring method as claimed in claim 1, is characterized in that, described step f specifically comprises the following steps:

Described off-premises station power and described indoor set power are carried out to summation operation and obtain stage general power;

Described stage general power and described chronometric data are carried out to product calculation and obtain stage electric quantity data.

7. air conditioner power consumption measuring method as claimed in claim 1, it is characterized in that, the described step that the accumulative total electric quantity data that once obtained before being stored in default storage space is updated to current accumulative total electric quantity data according to described stage electric quantity data specifically comprises the following steps:

The accumulative total electric quantity data that once obtained before in described stage electric quantity data and described default storage space is carried out to summation operation and obtain current accumulative total electric quantity data;

By the Data Update in described default storage space, it is described current accumulative total electric quantity data.

8. an air conditioner power consumption measuring system, is characterized in that, described air conditioner power consumption measuring system comprises:

Set of time unit, for default stage power measuring intervals of TIME;

Timing unit, for timing the real-time chronometric data that generates;

Time judging unit, for judging whether described chronometric data equals described stage power measuring intervals of TIME;

The first jump-transfer unit, for returning to described timing unit when described time judging unit when the determination result is NO;

Off-premises station power acquiring unit, for obtaining off-premises station power according to the operating voltage of air-conditioner outdoor unit and working current;

Indoor set power acquiring unit, for obtaining indoor set power according to the duty of each load of indoor apparatus of air conditioner;

Stage electric weight acquiring unit, for obtaining stage electric quantity data according to described off-premises station power, described indoor set power and described chronometric data;

Storage unit, for storing accumulative total electric quantity data;

Electric quantity data updating block, for being updated to current accumulative total electric quantity data according to described stage electric quantity data by being stored in the accumulative total electric quantity data that once obtained before default storage space;

Duty judging unit, whether in running order for judging air conditioner;

The second jump-transfer unit, for jumping to described set of time unit when judgment result is that of described duty judging unit is;

Process end unit, measures process for finish power consumption when the determination result is NO when described duty judging unit.

9. air conditioner power consumption measuring system as claimed in claim 8, is characterized in that, described off-premises station power acquiring unit comprises:

Power cycle is cut apart subelement, for an ac working power supply cycle or half ac working power supply cycle are on average divided into specific quantity and identical time period of time width;

Electrical quantity obtains subelement, for the finish time in each time period the operating voltage of off-premises station and working current being obtained;

Timesharing power obtains subelement, for calculating according to described operating voltage and described working current the timesharing power that off-premises station consumes within each time period;

Off-premises station power obtains subelement, and the quantity rated output average of the time period comprising for the timesharing power that consumes within each time period according to off-premises station and ac working power supply cycle is as off-premises station power.

10. air conditioner power consumption measuring system as claimed in claim 8, is characterized in that, described indoor set power acquiring unit comprises:

Blower fan and electric auxiliary thermal power are obtained subelement, for when air conditioner runs on refrigeration mode, according to the driving dutycycle of current blower fan, calculate power of fan, when air conditioner runs on heating mode, according to the driving dutycycle of current blower fan, calculate power of fan and electric auxiliary thermal power;

Bright light power obtains subelement, for calculating bright light power according to the duty of indoor set display screen;

Circuit board power obtains subelement, for obtaining the circuit board power consuming when indoor set circuit board is worked;

Negative ion power obtains subelement, for obtaining the negative ion power consuming when anion generator is worked;

Indoor set power obtains subelement, for when air conditioner is during in refrigeration mode, power of fan, bright light power, circuit board power are carried out to summation operation and obtain indoor set power, when air conditioner is during in heating mode, power of fan, electric auxiliary thermal power, bright light power and circuit board power are carried out to summation operation and obtain indoor set power, when air conditioner is during in refrigeration mode and anion generator startup work, power of fan, bright light power, circuit board power and negative ion power are carried out to summation operation and obtain indoor set power.

11. air conditioner power consumption measuring systems as claimed in claim 8, is characterized in that, described stage electric weight acquiring unit comprises:

Stage general power computation subunit, obtains stage general power for off-premises station power and indoor set power are carried out to summation operation;

Stage electric quantity data operator unit, obtains stage electric quantity data for described stage general power and described chronometric data are carried out to product calculation.

12. air conditioner power consumption measuring systems as claimed in claim 8, is characterized in that, electric quantity data updating block comprises:

Current accumulative total electric weight obtains subelement, for the accumulative total electric quantity data that once obtained before described stage electric quantity data and described storage unit being carried out to summation operation, obtains current accumulative total electric quantity data;

Data Update subelement, for by the Data Update of storage unit being described current accumulative total electric quantity data.

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