JPH0321872A - Prepaid system watt-hour meter - Google Patents
Prepaid system watt-hour meterInfo
- Publication number
- JPH0321872A JPH0321872A JP15557689A JP15557689A JPH0321872A JP H0321872 A JPH0321872 A JP H0321872A JP 15557689 A JP15557689 A JP 15557689A JP 15557689 A JP15557689 A JP 15557689A JP H0321872 A JPH0321872 A JP H0321872A
- Authority
- JP
- Japan
- Prior art keywords
- yen
- charge
- electricity
- remaining amount
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、別荘等において使用される前納式電力量計
に関するものである．
特に、磁気カード等を使った前納式（プリベイド方式〉
電力量計に関するものである．［従来の技術］
従来例の構成を第４図を参照しながら説明する．第４図
は、例えば特開昭６３−１３８２６９号公報に示された
従来の前納式電力量計を示すブロック図である．
第４図において、従来の前納式電力量計は、例えばマイ
クロコンピュータ等の中央処理装置（１〉と、この中央
処理装置（１）に接続されたカードリーダ・ライタ〈２
）と、このカードリーダ・ライタ（２）に挿入、排出さ
れる磁気カード（３）と、中央処理装置（１）に接続さ
れがっ引込線等の電源に接続されたリレー等の開閉器（
４）と、この開閉器（４）と負荷〈８）との間に接続さ
れかつ中央処理装置（１）に接続された電力量検出装置
（５）と、中央処理装Ｍ（１）に接続された警報装置（
６）と、中央処理装置（１）に接続された表示装置（７
）とから構成されている．つぎに、上述した従来例の動
作を第５図及び第６図を参照しながら説明する．
第５図は従来の前納式電力量計の動作を示すフローチャ
ート図、第６図は従来の前納式電力量計の動作を示す説
明図である．
第６図において、横軸は使用電力量（ＫＷｈ）、縦軸は
残金額（円）を示し、使用電力量ＩＫＷｈの単価が１０
円で、４５円の磁気カード（３）の場合の使用電力量と
残金額との関係を示している。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a prepaid watt-hour meter used in vacation homes and the like. In particular, prepaid methods using magnetic cards, etc.
This is related to electricity meters. [Prior Art] The configuration of a conventional example will be explained with reference to Fig. 4. FIG. 4 is a block diagram showing a conventional prepaid electricity meter disclosed in, for example, Japanese Patent Application Laid-open No. 138269/1983. In FIG. 4, a conventional prepaid watt-hour meter includes a central processing unit (1) such as a microcomputer, and a card reader/writer (2) connected to this central processing unit (1).
), the magnetic card (3) inserted into and ejected from the card reader/writer (2), and a switch such as a relay (
4), a power amount detection device (5) connected between the switch (4) and the load (8) and connected to the central processing unit (1), and a power amount detection device (5) connected to the central processing unit M (1). alarm device (
6) and a display device (7) connected to the central processing unit (1).
). Next, the operation of the conventional example described above will be explained with reference to FIGS. 5 and 6. FIG. 5 is a flowchart showing the operation of a conventional prepaid watt-hour meter, and FIG. 6 is an explanatory diagram showing the operation of the conventional prepaid watt-hour meter. In Figure 6, the horizontal axis shows the amount of electricity used (KWh), the vertical axis shows the remaining amount (yen), and the unit price of the amount of electricity used IKWh is 10
The figure shows the relationship between the amount of power used and the remaining amount in the case of a magnetic card (3) with a value of 45 yen.
最初、中央処理装置（１）は、カードリーダ・ライタ（
２）の挿入口に磁気カード（３）が挿入されるまで待機
している．
ステップ（１１〉において、磁気カード（３）が挿入さ
れると、カードリーダ・ライタ（２）により磁気カード
（３）から４５円の金額データが読み込まれ、それを中
央処理装置（１）は記憶する．また、４５円の金額デー
タを表示装置（７）に表示する．
ステ，フ（１２）及び（１３）において、残金額がある
かどうかを判断し、残金額がない場合（Ｎｏ）には２テ
．ｚ’ｌ（１８）に進み、残金額がある場合（ＹＥＳ）
には電気を供給する．すなわち、残金額がある場合には
中央処理装置（１）は、ＷＩＩｍ器（４）を閏制御して
電気を負荷（８〉に供給する．ステッフ〈１４）におい
て、Ｉ ＫＷｈ分の料金が引去り可能かどうかを判断し
、不可能の場合（Ｎ○〉にはステッフ（１７）に進み、
可能の場合（ＹＥＳ）には２ｙＪ （ １５ ）に進む
．すなわち、４５円から１０円が引去り可能かどうかを
判断する．
スｙ，フ（１５）において、Ｉ ＫＷｈ分の料金を引去
る．すなわち、４５円からＩＯ円を引去り、残金額を３
５円に更新するとともに表示装置（７）に表示する．
ステ，ブ（１６）において、電力量検出装！（５）から
送られてくるパルスを計量し、Ｉ ＫＷｈ使用するまで
よって、使用したらＩ ＫＷｈの使用電力量を加算して
、ステ，ブ（１４〉に戻る．第６図で示すように、ＩＫ
Ｗｈ分使用する毎に１０円づつ引去り残金額が５円にな
るまで、ステップ（１４〉〜（１６〉の処理を繰り返す
．残金額が５円になったらステ，フ〈１７）に進む．
ス７９フ（１７）において、電気を遮断する．すなわち
、中央処理装置《１〉は、警報装置（６）を作動させ、
開閉器（４〉を開制御して電気を遮断する．
２ｙＪ （ １８ ）において、中央処理装置（１）は
、カードリーダ・ライタ（２）により磁気カード〈３〉
の内容を書き換えて、すなわち金額データを５円にして
から、カードリーダ・ライタ（２）の排出口から磁気カ
ード（３）を排出する。Initially, the central processing unit (1) uses a card reader/writer (
Waiting until the magnetic card (3) is inserted into the insertion slot of 2). In step (11>), when the magnetic card (3) is inserted, the card reader/writer (2) reads the amount data of 45 yen from the magnetic card (3), and the central processing unit (1) stores it. In addition, the amount data of 45 yen is displayed on the display device (7). In steps (12) and (13), it is determined whether there is any remaining amount, and if there is no remaining amount (No), Proceed to 2te.z'l (18) and if there is a balance (YES)
supplies electricity to. That is, if there is a balance, the central processing unit (1) controls the WIIm device (4) to supply electricity to the load (8).In the step (14), the charge for I KWh is deducted. Determine whether it is possible to leave, and if it is not possible (N○), proceed to step (17).
If possible (YES), proceed to 2yJ (15). In other words, it is determined whether 10 yen can be withdrawn from 45 yen. At Sy, F (15), the charge for I KWh is deducted. In other words, subtract IO yen from 45 yen, and the remaining amount is 3
It will be updated to 5 yen and displayed on the display device (7). In step (16), the electric energy detection device! Weigh the pulses sent from (5) until I KWh is used, then add up the amount of power used for I KWh and return to step (14).As shown in Figure 6, IK
Every time you use Wh, 10 yen will be withdrawn and steps (14> to (16)) will be repeated until the remaining amount becomes 5 yen. When the remaining amount becomes 5 yen, proceed to step (17). In Step 79 (17), the electricity is cut off. That is, the central processing unit <<1>> activates the alarm device (6),
The electricity is cut off by opening the switch (4). In 2yJ (18), the central processing unit (1) uses the card reader/writer (2) to open the magnetic card (3).
After rewriting the contents of , that is, changing the amount data to 5 yen, the magnetic card (3) is ejected from the ejection port of the card reader/writer (2).
［発明が解決しようとする課！ｉ！１
上述したような従来の前納式電力量計では、磁気カード
（３）の残金額がまだある（０円でない〉のに電気を遮
断してしまうという問題点があった。[The problem that the invention tries to solve! i! 1. The conventional prepaid electricity meter as described above has the problem that electricity is cut off even though there is still a balance on the magnetic card (3) (not 0 yen).
この発明は、上述した問題点を解決するためになされた
もので、残金額がほぼ完全になくなるまで電気を供給す
ることができる前納式電力量計を得ることを目的とする
．
［課題を解決するための手段］
この発明に係も前納式電力量計は、以下に述べるような
手段を備えたものである。This invention was made to solve the above-mentioned problems, and aims to provide a prepaid watt-hour meter that can supply electricity until the remaining amount is almost completely exhausted. [Means for Solving the Problems] A prepaid watt-hour meter according to the present invention is provided with the following means.
（ｉ）、記録媒体に記録されている金額データの読み取
り及び書き換えを行う記録媒体リーダ・ライタ．
（ｉｉ）．所定単位毎に使用電力量の料金を精算し上記
所定単位の料金の引去りが不可能になったとき、さらに
上記所定単位の１／Ｎ （Ｎは整数）毎に使用電力量の
料金を精算し上記所定単位の１／Ｎの料金の引去りが不
可能になったとき電気を遮断する制御演算手段．
「作用］
この発明においては、記録媒体リーダ・ライタによって
、記録媒体に記録されている金額データの読み取り及び
書き換えが行われる．
また、制御演算手段によって、所定単位毎に使用電力量
の料金が精算され、上記所定単位の料金の引去りが不可
能になったとき、さらにＬ記所定単位の１／Ｎ （Ｎは
整数）毎に使用電力量の料金が精算され、上記所定単位
の１／Ｎの料金の引去りが不可能になったとき電気が遮
断される。(i) A recording medium reader/writer that reads and rewrites monetary data recorded on the recording medium. (ii). When the charge for the amount of electricity used is settled in each predetermined unit and it becomes impossible to withdraw the charge for the above-mentioned predetermined unit, the charge for the amount of electricity used is further settled in every 1/N (N is an integer) of the above-mentioned predetermined unit. and control calculation means for cutting off electricity when it becomes impossible to withdraw the charge of 1/N of the predetermined unit. "Operation" In this invention, the recording medium reader/writer reads and rewrites the amount data recorded on the recording medium.Furthermore, the control calculation means calculates the amount of electricity used in each predetermined unit. When it becomes impossible to withdraw the charge for the above specified unit, the charge for the amount of electricity used will be settled every 1/N (N is an integer) of the above specified unit, and Electricity will be cut off when it becomes impossible to withdraw the charges.
［実施例］
この発明の実施例の構成を第１図を参照しながら説明す
る。[Embodiment] The configuration of an embodiment of the present invention will be described with reference to FIG.
第１図は、この発明の一実施例を示すプロ・ノク図であ
り、カードリーダ・ライタ（２）〜表示装置（７）は上
記従来例のものと全く同一である。FIG. 1 is a schematic diagram showing one embodiment of the present invention, and the card reader/writer (2) to display device (7) are completely the same as those of the above-mentioned conventional example.
第１図において、この発明の一実施例は、上述した従来
例のものと全く同一のものと、カードリーダ・ライタ（
２）、開閉器（４）〜表示装置（７）に接続された中央
処理装置（１＾）とから構成されている．
ところで、この発明の記録媒体リーダ・ライタは、上述
したこの発明の一実施例ではカードリーダ・ライタ（２
）から構戒され、制御演算手段は、中央処理装置（ｌ＾
）から構成されている．つぎに、上述した実施例の動作
を第２図及び第３図を参照しながら説明する．
第２図はこの発明の一実施例の動作を示すフローチャー
ト図、第３図は．この発明の一実施例の動作を示す説明
図である．
第３図において、横軸は使用電力量（ＫＷｈ）、縦軸は
残金額（円）を示し、使用電力量ＩＫＷｈの単価が１０
円で、４５円の磁気カード（３）の場合の使用電力量と
残金額との関係を示．している．２ｙＪ（２１）〜（２
Ｂ）の処理は、上述した従来例のステップ（１１）〜（
１６）の処理と同一である．ス７．２（２７）において
、Ｉ ＫＷｈ分の料金が引去り不可能の場合、１／１０
０ＫＷｈ分の料金が弓去り可能かどうかを判断し、不可
能の場合（Ｎｏ＞にはステ，ブ（３０）に進み、可能の
場合（ＹＥＳ）にはステップ（２８）に進む．すなわち
、５円か．ら０，１円（１０円／１００＝０．１円）が
引去り可能がどうかを判断する．
ステ，ブ〈２８〉において、１／１００ＫＷｈ分の料金
を引去る．すなわち、５円から０．１円を引去り、残金
額を４．９円に更新するとともに表示装置（７）に表示
する．
ステ，ブ（２９〉において、電力量検出装置（５〉から
送られてくるパルスを計量し、１／１０−ＯＫＷｈ使用
するまでまりで、使用したら１／ＩＯＯＫｗｈの使用電
力量を加算して、ステ．，ブ（２７〉に戻る．第３図で
示すように、ＩＫＷｈ分使用する毎に１０円づつ引去り
残金額が５円になるまでステップ（２４）〜（２６〉の
処理を繰り返し、さらに、１／１００ＫＷｈ分使用する
毎に０．１円づつ引去り残金額が０円になるまでステッ
プ（２７〉〜〈２９）の処理を繰り返す．そして、残金
額が０円になったらつぎのステ，フ（３０）に進む．
ステ，ブ（３０）において、電気を遮断する．すなわち
、中央処理装置（１八）は、警報装置（６〉を作動させ
、開閉器〈４）を開制御して電気を遮断する．
ステ，ブ（３ｌ）において、中央処理装置（１＾）は、
カードリーダ・ライタ（２〉により磁気カード（３）の
内容を書き換えて、すなわち金額データを０円にしてか
ら、カードリーダ・ライタ（２）の排出口から磁気カー
ド（３）を排出する．この発明の一実施例は、上述した
ように料金の引去り処理をＩＫＷｈ単位と１／１００Ｋ
Ｗｈ単位の２段階で行っているので、残金額がほぼ０円
にちかいところで電気を遮断することができるという効
果を奏する．
なお、上記実施例では料金の引去り処理をＩＫｗｈ単位
と１／１００ＫＷｈ単位の２段階で行っているが、他の
適当な単位や適当な数段階で行ったとしても同様の動作
を期待できる．
また、上記実施例では記録媒体として磁気カードについ
て説明したが、光カードやＩＣカード等の記録カードで
もよいし、記録カード以外の他の記録媒体でも所期の目
的を達成し得ることはいうまでもない。In FIG. 1, one embodiment of the present invention includes a card reader/writer (
2), a central processing unit (1^) connected to a switch (4) to a display device (7). By the way, the recording medium reader/writer of the present invention is a card reader/writer (2) in one embodiment of the invention described above.
), and the control calculation means is controlled by the central processing unit (l^
). Next, the operation of the above embodiment will be explained with reference to FIGS. 2 and 3. FIG. 2 is a flowchart showing the operation of an embodiment of the present invention, and FIG. FIG. 2 is an explanatory diagram showing the operation of an embodiment of the present invention. In Figure 3, the horizontal axis shows the amount of electricity used (KWh), the vertical axis shows the remaining amount (yen), and the unit price of the amount of electricity used IKWh is 10
In yen, the relationship between the amount of electricity used and the remaining amount in the case of a 45 yen magnetic card (3) is shown. are doing. 2yJ(21)～(2
Processing B) is performed by steps (11) to (11) of the conventional example described above.
The process is the same as 16). In step 7.2 (27), if the charge for I KWh cannot be withdrawn, 1/10
It is determined whether the fee for 0KWh can be paid, and if it is not possible (No>, proceed to step (30), and if it is possible (YES), proceed to step (28). That is, step 5 Determine whether it is possible to withdraw 0.1 yen (10 yen/100 = 0.1 yen) from the yen. In Step 28, the charge for 1/100 KWh is deducted. That is, 5 Subtract 0.1 yen from the yen, update the remaining amount to 4.9 yen, and display it on the display device (7). Weigh the pulses and continue until 1/10-OKWh is used, then add the power consumption of 1/IOOKwh and return to step 27.As shown in Figure 3, the IKWh amount is calculated. Repeat steps (24) to (26) until the remaining amount is 5 yen, with 10 yen removed each time it is used, and then 0.1 yen removed each time 1/100KWh is used. Repeat steps (27> to 29) until the remaining amount reaches 0 yen. Then, when the remaining amount reaches 0 yen, proceed to the next step (30). In step (30), cut off the electricity. In other words, the central processing unit (18) activates the alarm device (6) and controls the opening of the switch (4) to cut off electricity. ^) is,
After rewriting the contents of the magnetic card (3) using the card reader/writer (2), that is, changing the amount data to 0 yen, eject the magnetic card (3) from the ejection port of the card reader/writer (2). One embodiment of the invention, as described above, performs the fee deduction process in units of IKWh and 1/100K.
Since this is done in two stages in Wh units, it has the effect of being able to cut off the electricity when the remaining amount is close to 0 yen. In the above embodiment, the fee deduction process is performed in two stages: IKWh unit and 1/100 KWh unit, but the same operation can be expected even if it is performed in other suitable units or in any number of stages. Further, in the above embodiments, a magnetic card was explained as a recording medium, but it goes without saying that recording cards such as optical cards and IC cards may be used, and other recording media other than recording cards can also be used to achieve the intended purpose. Nor.
［発明の効果］
この発明は、以上説明したとおり、記録媒体に記録され
ている金額データの読み取り及び書き換えを行う記録媒
体リーダ・ライタと、所定単位毎に使用電力量の料金を
精算し上記所定単位の料金の引去りが不可能になったと
きさらに上記所定単位の１／Ｎ（Ｎは整数）毎に使用電
力量の料金を精算し上記所定単位の１／Ｎの料金の引去
りが不可能になったとき電気を遮断する制御演算手段と
を備えたので、記録媒体の残金額がほぼ完全になくなる
まで電気を供給することができるという効果を奏する．[Effects of the Invention] As explained above, the present invention provides a recording medium reader/writer that reads and rewrites monetary data recorded on a recording medium, and a recording medium reader/writer that reads and rewrites monetary data recorded on a recording medium, and a recording medium reader/writer that calculates charges for power consumption in predetermined units. When it becomes impossible to withdraw the charge for the unit, the charge for the amount of electricity used is further settled in units of 1/N (N is an integer) of the above-mentioned predetermined unit, and it becomes impossible to withdraw the charge for 1/N of the above-mentioned predetermined unit. Since it is equipped with a control calculation means that cuts off the electricity when it becomes possible, the effect is that electricity can be supplied until the remaining amount of the recording medium is almost completely exhausted.
第１図はこの発明の一実施例を示すブロック図、第２図
はこの発明の一実施例の動作を示すフローチャート図、
第３図はこの発明の一実施例の動作を示す説明図、第４
図は従来の前納式電力量計を示すブロック図、第５図は
従来の前納式電力量計の動作を示すフローチャート図、
第６図は従来の前納式電力量計の動作を示す説明図であ
る．図において、
（１＾〉 ・・・ 中央処理装置、
（２） ・・・ カードリーダ・ライタ、（３〉 ・・
・ 磁気カード、
（４） ・・・ 開閉器、
（５〉 ・・・ 電力量検出装置、
（６） ・・・ 警報装置、
（７〉 ・・・ 表示装置、
（８） ・・・ 負荷である．
なお、各図中、同一符号は同一、又は相当部分姶３図
ｋｗｈ−ｌ○円の神毒ト
１４８０FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a flowchart showing the operation of an embodiment of this invention,
FIG. 3 is an explanatory diagram showing the operation of an embodiment of the present invention, and FIG.
The figure is a block diagram showing a conventional pre-paid watt-hour meter, and FIG. 5 is a flowchart showing the operation of the conventional pre-paid watt-hour meter.
Figure 6 is an explanatory diagram showing the operation of a conventional prepaid electricity meter. In the figure, (1^> ... central processing unit, (2) ... card reader/writer, (3> ...
・Magnetic card, (4)... Switch, (5>... Electric energy detection device, (6)... Alarm device, (7>... Display device, (8)... Load In addition, in each figure, the same reference numerals are the same, or the corresponding parts are
Claims (1)
き換えを行う記録媒体リーダ・ライタ、並びに所定単位
毎に使用電力量の料金を精算し上記所定単位の料金の引
去りが不可能になったときさらに上記所定単位の１／Ｎ
（Ｎは整数）毎に使用電力量の料金を精算し上記所定単
位の１／Ｎの料金の引去りが不可能になったとき電気を
遮断する制御演算手段を備えたことを特徴とする前納式
電力量計。A recording medium reader/writer that reads and rewrites the amount data recorded on the recording medium, and when it becomes impossible to settle the charge for the amount of electricity used in each predetermined unit and to withdraw the charge for the above predetermined unit. 1/N of the above specified unit
The prepayment method is characterized by comprising a control calculation means that settles the charge for the amount of electricity used every (N is an integer) and cuts off the electricity when it becomes impossible to withdraw the charge of 1/N of the predetermined unit. Power meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15557689A JPH0687065B2 (en) | 1989-06-20 | 1989-06-20 | Prepaid electricity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15557689A JPH0687065B2 (en) | 1989-06-20 | 1989-06-20 | Prepaid electricity meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0321872A true JPH0321872A (en) | 1991-01-30 |
| JPH0687065B2 JPH0687065B2 (en) | 1994-11-02 |
Family
ID=15609071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15557689A Expired - Lifetime JPH0687065B2 (en) | 1989-06-20 | 1989-06-20 | Prepaid electricity meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0687065B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6553353B1 (en) * | 2000-01-28 | 2003-04-22 | John Joseph Littlejohn | Advanced metering system enabling regulation and billing of utilities by third party interagent |
-
1989
- 1989-06-20 JP JP15557689A patent/JPH0687065B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6553353B1 (en) * | 2000-01-28 | 2003-04-22 | John Joseph Littlejohn | Advanced metering system enabling regulation and billing of utilities by third party interagent |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0687065B2 (en) | 1994-11-02 |
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