CN109509306A - A method of it calculating pre-paying kilowatt-hour meter residue and uses number of days - Google Patents
A method of it calculating pre-paying kilowatt-hour meter residue and uses number of days Download PDFInfo
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- CN109509306A CN109509306A CN201811157944.4A CN201811157944A CN109509306A CN 109509306 A CN109509306 A CN 109509306A CN 201811157944 A CN201811157944 A CN 201811157944A CN 109509306 A CN109509306 A CN 109509306A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/08—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for varying the tariff or changing the price
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Abstract
A method of it calculating pre-paying kilowatt-hour meter residue and uses number of days, it is characterised in that: it is the following steps are included: (1) obtains rate electricity price F；(2) step price J is obtainedK；(3) do you judge that the record strip number M of positive active total electricity is less than or equal to regulation item number B? if so, the average electricity consumption P=W in past several days1/ M, W1The active total electricity of forward direction recorded for upper one；If it is not, then passing by the average electricity consumption P=(W in several days1‑WB+1)/B, W1The active total electricity of forward direction recorded for upper one, WB+1For the active total electricity of forward direction of upper B+1 item record；(4) amount of money D needed for covering current ladder K is calculatedK=(AK‑W1)*(JK+F)；(5) judge DKWhether the amount of money C of ammeter current residual is greater thanKThis method considers step price and rate electricity price, to keep calculated result more acurrate.
Description
Technical field
The present invention relates to ammeter technical fields, and in particular to a method of it calculates pre-paying kilowatt-hour meter residue and uses number of days.
Background technique
Pre-paying kilowatt-hour meter solves the problems, such as traditional ammeter difficult charge.User using when ammeter is supplemented with money in advance, when
Remaining sum is finished rear ammeter and automatically winds up, user's power-off.User wonder when can power off just need to invent it is a kind of according to remaining sum meter
The remaining method for using number of days is calculated, user can supplement with money in time, prevents from powering off.
The method for calculating pre-paying kilowatt-hour meter residue and using number of days generallyd use at this stage, is according to remaining capacity divided by mistake
Several days are gone to be averaged what electricity consumption was calculated.But had ignored during calculating remaining capacity at present step price and
Influence of the rate electricity price to electricity is used, the data error being calculated is larger, inevitably will affect some user's body
It tests, the especially big enterprise of those electricity consumptions, such as cold chain factory or manufacturing enterprise, residue is caused using number of days inaccuracy
Breakpoint high economic loss can be caused to them.
Summary of the invention
It considers step price and rate electricity price the technical problem to be solved by the present invention is providing one kind and makes calculated result
More accurately calculate the method that pre-paying kilowatt-hour meter residue uses number of days.
The technical solution of the invention is as follows: a method of it calculating pre-paying kilowatt-hour meter residue and uses number of days, feature exists
In: it the following steps are included:
(1) rate electricity price F is obtained according to preset current Fee Schedule in current time inquiry ammeter, the Fee Schedule is
The mapping relations of period and rate electricity price；
(2) historical data for obtaining the active total electricity of forward direction that storage is recorded in ammeter is judging a upper record just
Does is it 0 to active total electricity?
If so, setting step price JKIt is 0；
If it is not, in the forward direction active total electricity inquiry ammeter then recorded according to upper one preset current step price table come
Obtain step price JK, the step price table is ladder K and step price JKMapping relations, ladder 1 is corresponding positive active
The lower limit value 0 and upper limit value A of total electricity1, the lower limit value A of the corresponding positive active total electricity of ladder 21With upper limit value A2... ladder K
The lower limit value A of corresponding positive active total electricityK-1With upper limit value AK... the lower limit value A of the corresponding positive active total electricity of ladder NN-1
With upper limit value AN；
(3) do you judge that the record strip number M of positive active total electricity is less than or equal to regulation item number B?
If so, the average electricity consumption P=W in past several days1/ M, W1The active total electricity of forward direction recorded for upper one；
If it is not, then passing by the average electricity consumption P=(W in several days1-WB+1)/B, W1The forward direction recorded for upper one is active
Total electricity, WB+1For the active total electricity of forward direction of upper B+1 item record；
(4) amount of money D needed for covering current ladder K is calculatedK=(AK-W1)*(JK+F)；
(5) judge DKWhether the amount of money C of ammeter current residual is greater thanK?
If so, obtaining residue uses number of days T=(CK/(JK+ F))/P, this calculating terminates；
If it is not, number of days T needed for then current ladder K is covered in calculating1=(AK-W1)/P, and cover residue after current ladder K
Amount of money CK+1=CK-DK, and enter step (6)；
(6) do you judge that ladder K is the last one ladder N?
If so, obtaining residue uses number of days T=(CK+1/(JK+F))/P+T1+TK, this calculating terminates, wherein TKJust
Beginning turns to 0；
If it is not, K=K+1 is then set, CK=CK+1、TK-1=TK, and (7) are entered step, wherein TK-1It is initialized as 0；
(7) amount of money D needed for covering ladder K is calculatedK=(AK-AK-1)*(JK+ F), judge DKWhether C is greater thanK?
If so, obtaining residue uses number of days T=(CK/(JK+F))/P+T1+TK, this calculating terminates；
If it is not, number of days T needed for then ladder K is covered in calculating2=(AK-AK-1)/P, add up number of days TK=TK-1+T2, calculating covers
Remaining amount of money C after ladder KK+1=CK-DK, then return step (6).
After adopting the above method, the invention has the following advantages that
The present invention calculates pre-paying kilowatt-hour meter residue and uses the method for number of days during calculating remaining capacity, fully considers
Step price and rate electricity price, can obtain accurate remaining capacity in this way, then further according to flat in past several days
It is remaining using number of days accurately to calculate pre-paying kilowatt-hour meter for equal electricity consumption.
Preferably, regulation item number B is 7 in the step (3).The setting can obtain accurately averagely electricity consumption,
But calculation amount will not be increased too much.
Preferably, the step price table in the step (2) is equipped with 2-10 ladder.The setting can both regulate and control well
Electricity consumption, and the complexity of calculating will not be increased too much.
Preferably, the step price table in the step (2) is equipped with 6 ladders.The setting can make step price table
Ladder quantity is more appropriate.
Preferably, be preset with one or more deferred duty tables in ammeter in the step (1), default wherein one is powered on
A deferred duty table is current Fee Schedule.The setting can quickly and easily modify the parameter of Fee Schedule.
Preferably, step (1) ammeter activates corresponding deferred duty table by presetting multiple activationary times, swash
Deferred duty table living is as current Fee Schedule.The setting can be automatically switched deferred duty table by ammeter, easy to control quick.
Preferably, it is corresponding spare by host computer remotely to send the commands to control ammeter activation in the step (1)
Fee Schedule.The remote controlled ammeter of the setting automatically switches deferred duty table.
Preferably, being preset with one or more spare step price tables in the step (2) in ammeter, powers on and default it
In spare step price table be current step price table.The setting can quickly and easily modify the parameter of step price table.
Preferably, step (2) ammeter activates corresponding spare step price by presetting multiple activationary times
Table, the spare step price table of activation is as current step price table.The setting can be automatically switched spare step price by ammeter
Table, it is easy to control quick.
Preferably, it is corresponding spare by host computer remotely to send the commands to control ammeter activation in the step (2)
Step price table.The remote controlled ammeter of the setting automatically switches spare step price table.
Specific embodiment
The present invention will be further explained with reference to the examples below.
Embodiment 1:
In the present embodiment: current rate electricity price F is 1.0000, it is specified that item number B is 7, and 6 ladders are arranged in step price table,
The lower limit value and upper limit value of the corresponding active total electricity of forward direction of each ladder be respectively as follows: 0-50,50-100,100-150,150-200,
200-250,250-300, corresponding step price are as follows: 1.0000,2.0000,3.0000,4.0000,5.0000,6.0000；
The historical data of positive active total electricity only has 7, and respectively 1.31Kwh, 4.75Kwh, 6.16Kwh, 8.29Kwh,
9.59Kwh,10.88Kwh,11.56Kwh；The average electricity consumption P=W obtained in 7 days1/ M=11.56/7=1.65, by
In W1=11.56Kwh, it is known that be currently at ladder 1, corresponding step price J1It is 1.0000, current 1 institute of ladder is covered in calculating
The amount of money D needed1=(A1-W1)*(J1+ F)=(50-11.56) * (1.0000+1.0000)=38.44*2=76.88, if it is electric
The amount of money C of table current residual1=50, then the amount of money C of ammeter current residual1The ladder is not enough covered, then remaining use number of days
T=(C1/(J1+ F))/P=(50/ (1.0000+1.0000))/1.65 ≈ 15.15 days, this calculating terminates.
Embodiment 2:
In the present embodiment: current rate electricity price F is 1.0000, it is specified that item number B is 7, and 6 ladders are arranged in step price table,
The lower limit value and upper limit value of the corresponding active total electricity of forward direction of each ladder are respectively as follows: 0-50,50-100,100-150,150-
200,200-250,250-300, corresponding step price are as follows: 1.0000,2.0000,3.0000,4.0000,5.0000,
6.0000；The historical data of positive active total electricity is greater than 8, and nearest 8 be respectively 1.31Kwh, 4.75Kwh,
6.16Kwh,8.29Kwh, 9.59Kwh,10.88Kwh,11.56Kwh,11.79Kwh；The average electricity consumption obtained in 7 days
P=(W1-WB+1)/B=(11.79-1.31)/7=1.49, due to W1=11.79Kwh, it is known that it is currently at ladder 1, it is corresponding
Step price J1It is 1.0000, amount of money D needed for current ladder 1 is covered in calculating1=(A1-W1)*(J1+ F)=(50-11.79) *
(1.0000+1.0000)=38.21*2=76.42, if the amount of money C of ammeter current residual1=1000, then ammeter is current
Remaining amount of money C1It covers after ladder 1 there are also remaining, first calculates number of days T needed for covering ladder 11=(AK-W1)/P=(50-
11.79)/1.49=25 days, remainder 0.96 covers remaining amount of money C after current ladder 12=C1-D1=1000-76.42=
923.58, amount of money D needed for covering next ladder 22=50.00* (1.0000+2.0000)=150.00, residual amount C2Still
It is enough, then calculate cover next ladder 2 needed for number of days=50.00/1.49=33 days, remainder=0.83 is covered surplus after ladder 2
Remaining amount of money C3=923.58-150.00=773.58, amount of money D needed for covering ladder 33=50.00* (1.0000+3.0000)
=200.00, residual amount C3It is still enough, number of days needed for ladder 3=50.00/1.49=33 days is covered then calculating, remainder=
0.83, cover remaining amount of money C after ladder 34=773.58-200.00=573.58, amount of money D needed for covering ladder 44=
50.00* (1.0000+4.0000)=250.00, residual amount C4It is still enough, then calculate cover ladder 4 needed for number of days=
50.00/1.49=33 remaining amount of money C after ladder 4 is covered in day, remainder=0.835=573.58-250.00=323.58,
Amount of money D needed for covering ladder 55=50.00* (1.0000+5.0000)=300.00, residual amount C5It is still enough, then calculating
Remaining amount of money C after ladder 5 is covered in number of days needed for complete ladder 5=50.00/1.49=33 days, remainder=0.836=
323.58-300.00=23.58 amount of money D needed for covering ladder 66=50.00* (1.0000+6.0000)=350.00, it is remaining
Amount of money C6Not enough cover ladder 6, therefore remaining amount of money C6Number of days=23.58/ (the 1.0000+ used in ladder 6
6.0000)=3 day, remainder=0.37, therefore the amount of money 1000 of ammeter current residual can be used to the 6th ladder, and at 6
It can be used 25,33,33,33,33,3 days respectively in ladder, corresponding remainder is respectively as follows: 0.96,0.83,0.83,0.83,
0.83,0.37, amount to about 162 days.
Embodiment 3:
In the present embodiment: current rate electricity price F is 1.0000, it is specified that item number B is 7, and 3 ladders are arranged in step price table,
The lower limit value and upper limit value of the corresponding active total electricity of forward direction of each ladder are respectively as follows: 0-50,50-100,100-150, corresponding
Step price are as follows: 1.0000,2.0000,3.0000；The historical data of positive active total electricity is greater than 8, and nearest 8 points
It Wei not 1.31Kwh, 4.75Kwh, 6.16Kwh, 8.29Kwh, 9.59Kwh, 10.88Kwh, 11.56Kwh, 11.79Kwh；It obtains
Average electricity consumption P=(W in past 7 days1-WB+1)/B=(11.79-1.31)/7=1.49, due to W1=11.79Kwh, can
Know and is currently at ladder 1, corresponding step price J1It is 1.0000, amount of money D needed for current ladder 1 is covered in calculating1=(A1-
W1)* (J1+ F)=(50-11.79) * (1.0000+1.0000)=38.21*2=76.42, if the amount of money of ammeter current residual
C1=500, then the amount of money C of ammeter current residual1It covers after ladder 1 there are also remaining, first calculates number of days T needed for covering ladder 11
=(AK-W1)/P=(50-11.79)/1.49=25 days, remainder 0.96 cover remaining amount of money C after current ladder 12=
C1-D1=500-76.42=423.58, amount of money D needed for covering next ladder 22=50.00* (1.0000+2.0000)=
150.00 residual amount C2It is still enough, then calculate cover next ladder 2 needed for number of days=50.00/1.49=33 days, remainder
=0.83, cover remaining amount of money C after ladder 23=423.58-150.00=273.58, amount of money D needed for covering ladder 33=
50.00* (1.0000+3.0000)=200.00, residual amount C3It is still enough, then calculate cover ladder 3 needed for number of days=
50.00/1.49=33 day, remaining amount of money C after ladder 3 is covered in remainder=0.834=273.58-200.00=73.58, by
In ladder 3 be the last one ladder, therefore according to the electricity price of the last one ladder by remaining amount of money C4All it is converted into
After electricity, obtain using number of days=(C4/(J3+ F))/P=(73.58/ (1+3))/1.49=12 days, remainder 0.35, therefore electricity
Third ladder can be used in the amount of money 500 of table current residual, and can use 25,33,33+12 days respectively in three ladders,
Corresponding remainder is respectively as follows: 0.96,0.83,0.83+0.35, amounts to about 106 days.
Claims (10)
1. it is a kind of calculate pre-paying kilowatt-hour meter residue use number of days method, it is characterised in that: it the following steps are included:
(1) rate electricity price F is obtained according to preset current Fee Schedule in current time inquiry ammeter, the Fee Schedule is the period
With the mapping relations of rate electricity price；
(2) historical data for obtaining the active total electricity of forward direction that storage is recorded in ammeter judges that the forward direction of a upper record has
Does is function total electricity 0?
If so, setting step price JKIt is 0；
If it is not, then being obtained according to preset current step price table in the active total electricity inquiry ammeter of the forward direction of upper one record
Step price JK, the step price table is ladder K and step price JKMapping relations, the corresponding positive active total electricity of ladder 1
Lower limit value 0 and upper limit value A1, the lower limit value A of the corresponding positive active total electricity of ladder 21With upper limit value A2... ladder K is corresponding positive
The lower limit value A of active total electricityK-1With upper limit value AK... the lower limit value A of the corresponding positive active total electricity of ladder NN-1With upper limit value AN；
(3) do you judge that the record strip number M of positive active total electricity is less than or equal to regulation item number B?
If so, the average electricity consumption P=W in past several days1/ M, W1The active total electricity of forward direction recorded for upper one；
If it is not, then passing by the average electricity consumption P=(W in several days1-WB+1)/B, W1The active total electricity of forward direction recorded for upper one
Amount, WB+1For the active total electricity of forward direction of upper B+1 item record；
(4) amount of money D needed for covering current ladder K is calculatedK=(AK-W1)*(JK+F)；
(5) judge DKWhether the amount of money C of ammeter current residual is greater thanK?
If so, obtaining residue uses number of days T=(CK/(JK+ F))/P, this calculating terminates；
If it is not, number of days T needed for then current ladder K is covered in calculating1=(AK-W1)/P, and cover remaining gold after current ladder K
Volume CK+1=CK-DK, and enter step (6)；
(6) do you judge that ladder K is the last one ladder N?
If so, obtaining residue uses number of days T=(CK+1/(JK+F))/P+T1+TK, this calculating terminates, wherein TKIt is initialized as
0；
If it is not, K=K+1 is then set, CK=CK+1、TK-1=TK, and (7) are entered step, wherein TK-1It is initialized as 0；
(7) amount of money D needed for covering ladder K is calculatedK=(AK-AK-1)*(JK+ F), judge DKWhether C is greater thanK?
If so, obtaining residue uses number of days T=(CK/(JK+F))/P+T1+TK, this calculating terminates；
If it is not, number of days T needed for then ladder K is covered in calculating2=(AK-AK-1)/P, add up number of days TK=TK-1+T2, calculate and cover ladder K
Remaining amount of money C afterwardsK+1=CK-DK, then return step (6).
2. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 1, it is characterised in that: described
Regulation item number B is 7 in step (3).
3. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 1, it is characterised in that: described
Step price table in step (2) is equipped with 2-10 ladder.
4. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 3, it is characterised in that: described
Step price table in step (2) is equipped with 6 ladders.
5. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 1, it is characterised in that: described
One or more deferred duty tables are preset in step (1) in ammeter, powering on the one of deferred duty table of default is current rate
Table.
6. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 5, it is characterised in that: described
Step (1) ammeter activates corresponding deferred duty table by presetting multiple activationary times, and the deferred duty table of activation, which is used as, works as
Preceding Fee Schedule.
7. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 5, it is characterised in that: described
Control ammeter is remotely sent the commands to by host computer in step (1) and activates corresponding deferred duty table.
8. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 1, it is characterised in that: described
One or more spare step price tables are preset in step (2) in ammeter, power on default one of them spare step price table be
Current step price table.
9. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 8, it is characterised in that: described
Step (2) ammeter activates corresponding spare step price table, the spare step price of activation by presetting multiple activationary times
Table is as current step price table.
10. a kind of method for calculating pre-paying kilowatt-hour meter residue and using number of days according to claim 8, it is characterised in that: institute
It states in step (2) and the corresponding spare step price table of control ammeter activation is remotely sent the commands to by host computer.
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|---|---|---|---|---|
| CN101339682A (en) * | 2008-07-29 | 2009-01-07 | 深圳市思达仪表有限公司 | CPU card three phase electronic type pre-payment step electricity price electrical energy meter |
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| CN102279312A (en) * | 2011-07-06 | 2011-12-14 | 保定市三川电气有限责任公司 | Method and device for modifying conventional electric energy meter into intelligent electric energy meter |
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| CN109509306B (en) | 2021-03-09 |
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