JP3345571B2 - Prepaid supply controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prepayment type supply control device for controlling supply of gas of a gas usable amount corresponding to a prepayment stored in a prepaid card.

[0002]

2. Description of the Related Art As a conventional prepaid type supply control device of this type, there are those described in, for example, JP-A-8-167076 and JP-A-9-7039. In the gas supply device described in Japanese Patent Application Laid-Open No. 8-167076, a gas meter and a controller are connected by a signal line, the controller inputs a meter reading from the gas meter, and a calculation unit is a prepaid card. The meter reading value is subtracted from the available gas amount corresponding to the advance payment stored in, and when the remaining gas available amount becomes zero, the control unit causes the gas meter to stop supplying gas to the consumer. Controlling.

A gas meter described in Japanese Patent Application Laid-Open No. 9-7039 is provided with a gas meter and a controller of the gas supply device described above, and the gas meter operates in a manner similar to that of the gas supply device. It has the same function.

[0004]

However, if the gas meter or the like described above is not used for a long time by the user, the operator must go to a place where a cock provided separately from the shut-off valve built in the gas meter is provided. Went, and operated the cock to close the plug and stop gas supply. Further, the cock was opened by operating the cock to enable gas supply.
At the time of this opening work, the worker or the customer had to carry the prepaid card, which was a burden on the customer and the like.

[0005] Further, when a pre-paid card is used to supply gas to a rental type house such as a villa, a weekly apartment, a lodge, etc., which is used for a limited time, and then the user leaves the rental type house, that is, at the time of closure, Even if a storage medium such as a prepaid card has a residual frequency corresponding to the remaining gas usable amount, the prepaid card must be discarded, and the user suffers disadvantage.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a prepayment type supply control device capable of adjusting the remaining number of a prepaid card or the like at the time of closure and reducing the burden on a customer or the like.

[0007]

The present invention employs the following means in order to solve the above-mentioned problems. The invention of claim 1 is
A measuring section where the supply amount of the supply body, the supply passage opening and closing section for opening and closing the supply path for supplying feed material is metered by the metering unit
1st transmission which transmits the supply amount of the supplied supply body via the 1st signal line.
A measuring unit having a communication unit , a medium reading unit that reads the frequency from a storage medium in which the frequency corresponding to the advance payment of the supply amount of the supply unit is written, and a supply unit from the first communication unit in the measurement unit . A second communication unit for receiving the supply amount , wherein the second communication unit
A calculating unit that converts the received supply amount of the supply body into a frequency and subtracts the converted frequency from the frequency read by the medium reading unit; a medium writing unit that writes the remaining frequency obtained by the calculating unit to the storage medium Unit, open and close when the balance of the storage medium is settled
The signal through the second communication unit and the first signal line
An opening / closing control unit that transmits the gas to the gas meter to close the supply path opening / closing unit , receives a settlement instruction, and reads the payment instruction with the medium reading unit.
A controller having a frequency input / output communication unit for transmitting the obtained residual frequency, and a second signal for adjusting the residual frequency of the storage medium.
A balance instruction is sent to the frequency input / output communication unit in the controller via a line, and the remaining frequency read by the medium reading unit in the controller is transmitted to the second signal line in response to the balance instruction. Via
And a third payment unit having a conversion unit for converting the remaining number received by the third communication unit into a monetary value.

According to the present invention, when the supply body is used,
The medium reading unit reads the frequency from the storage medium, and the calculating unit
Sent from the first communication unit in the scale via the first signal line
Coming supply amount of the supply body is converted to degrees is subtracted from the converted frequency was read by the medium reading unit power, medium writing unit writes the resulting residue frequency in a storage medium.

When the frequency is settled, the second signal line is connected to the controller.
Connect the power settlement unit via the third communication unit, a second signal line
When a balance instruction is sent to the frequency input / output communication unit in the controller through the controller and the remaining frequency read by the medium reading unit in the controller is received via the second signal line in response to the balance instruction, the frequency The money amount conversion unit converts the received residual number into a money amount, and the opening / closing control unit receives the opening / closing signal via the second communication unit and the first signal line.
The signal is transmitted to the meter and the supply path opening / closing section is closed.

Therefore, it is possible to settle the residual number of the storage medium and to stop the supply of the supply body.

According to a second aspect of the present invention, the controller comprises:
A storage unit in which a memory frequency corresponding to a predetermined prepayment is stored in advance, and the storage medium is a prepaid card, and the calculation unit stores the memory frequency stored in the storage unit in the prepaid card. Add to the stored card frequency to determine the total frequency, from this total frequency, subtract the frequency corresponding to the supply amount of the supply from the measuring device to determine the total remaining frequency, the frequency money conversion unit, The above system at the time of settlement
By converting the total residual number sent from the controller via the second signal line into a monetary amount, the monetary amount according to the total residual number can be settled.

According to a third aspect of the present invention, communication with the controller is performed, and when a predetermined prepayment is paid, a center frequency corresponding to the prepayment is preceded via a line. A controller for transmitting data to the controller, wherein the storage medium is a prepaid card, and the calculating unit stores a center frequency transmitted from the center via the line in the prepaid card. to find the total power by adding the power from the total count, the determined total residual power by subtracting the corresponding power to the supply amount of the supply body from the meter, the power amount converting unit, the control at checkout From the container
The amount corresponding to the total remaining number can be settled by converting the total remaining number transmitted through the second signal line into a monetary amount.

According to a fourth aspect of the present invention, the controller comprises:
It may be provided in the measuring device. As in the invention of claim 5, in the frequency adjuster, the frequency / money conversion unit converts the received amount into a frequency when setting the frequency in the storage medium, and the third communication unit performs the frequency / money conversion. The second signal line together with the frequency setting instruction
And the medium writing unit transmits the second signal based on the frequency setting instruction.
Writing the frequency received via the line to the storage medium,
The opening / closing control unit performs the opening / closing based on the frequency setting instruction.
The signal through the second communication unit and the first signal line
By transmitting the gas to the gas meter and opening the supply path opening / closing section, the frequency can be set and the supply body can be supplied.

According to a sixth aspect of the present invention, the frequency adjuster includes a printing unit that prints the amount converted by the frequency amount conversion unit at the time of adjustment, so that the customer can know the amount at the time of adjustment. Can be. As in the invention of claim 7, the frequency adjuster includes a printing unit that prints the frequency converted by the frequency money amount conversion unit when the frequency is set, so that the consumer can set the value of the set frequency. You can know.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

<First Embodiment> FIG. 1 is a block diagram showing the configuration of a first embodiment of a prepaid type supply control device according to the present invention.
The prepaid-type supply control device shown in FIG. 1 converts the gas usage into a frequency corresponding to the gas charge, subtracts the converted frequency from the frequency stored in the prepaid card, and writes the remaining frequency on the prepaid card. The present invention enables setting of a frequency and settlement of the frequency using a prepaid card and a frequency settlement device.

The prepayment type supply control device includes a gas meter 1 as a meter, a controller 3 connected to the gas meter 1 via a signal line 2, and a frequency adjustment connectable to the controller 3 via a signal line 4. It has a device 4.

The gas meter 1 is, for example, a film-type gas meter, and has a measuring section 11 for measuring the flow rate of the flowing gas.
A shutoff valve 13 serving as a supply path opening / closing unit for opening / closing a gas inflow path, sends a gas flow rate to the controller 3,
A microcomputer 15 for controlling the opening and closing of the shut-off valve 13 in response to an opening and closing signal from It has a serial communication unit 17 for communicating with the controller 3.

The controller 3 includes a serial communication section 31, a frequency input / output communication section 32, a card insertion section 34, and a card reading section 3.
3, a calculation unit 35, a display unit 37, a card writing unit 39, a storage unit 41, an alarm unit 43, an opening / closing signal for controlling these units and performing opening / closing control of the shutoff valve 13 via the serial communication unit 31. Is provided.

The card insertion section 34 is for inserting a prepaid prepaid card 7 in which the usable gas amount (card frequency corresponding to the prepaid amount) is stored. When the prepaid card 7 is inserted into the card insertion section 34, the card reading section 33 reads the card frequency stored in the prepaid card 7 and sends the card frequency to the calculation section 35.

The serial communication section 31 inputs a gas usage amount from the gas meter 1 and supplies the gas meter 1 with the shutoff valve 13.
An open / close signal for opening / closing is output. The calculation unit 35
The gas usage amount input via the gas input / output unit 31 is converted into a frequency, the frequency corresponding to the gas usage is subtracted from the card frequency stored in the prepaid card 7, and a new frequency obtained is obtained. Is the residual count.

The display unit 37 displays the remaining frequency obtained by the calculation unit 35. The card writing unit 39 writes the remaining number obtained by the calculation unit 35 on the prepaid card 7. Storage unit 4
1 stores a memory frequency corresponding to a predetermined advance payment. The control unit 45 determines whether the residual frequency obtained by the calculation unit 35 has become zero. The alarm unit 43 sounds an alarm when the remaining frequency becomes zero.

The calculation unit 35 stores the prepaid card 7
Is added to the card frequency read from the storage unit 41 to obtain the total frequency. The frequency input / output communication unit 32 receives the settlement instruction from the frequency adjuster 5 and sends it to the control unit 45 when the frequency is settled, and sends the total frequency obtained by the calculation unit 35 to the frequency adjuster 5. Frequency input / output communication unit 32
Receives the frequency setting instruction and the frequency from the frequency adjuster 5 when setting the frequency, and sends a frequency setting completion instruction to the frequency adjuster 5.

FIG. 2 is an external view of the frequency adjuster 5. The frequency adjuster 5 is a portable handheld numeric keypad as shown in FIG. 2, and includes a display unit 55 arranged at the center of the main body, a printer output unit 57 arranged at the upper part of the main body, and a numeric keypad arranged at the lower part of the main body. It has a key input unit 59.

As shown in FIG. 1, the frequency adjuster 5 includes a communication unit 51 as a transmission / reception unit, a frequency conversion unit 53, a display unit 55, a printer output unit 57, a key input unit 59, and a storage unit 6.
1 and a control unit 63.

The communication section 51 transmits and receives information, instructions and the like to and from the controller 3. The frequency-to-money conversion unit 53 converts the total frequency sent from the controller 3 at the time of settlement into money, and converts the money received from the consumer at the time of frequency setting into frequency.

The display unit 55 displays the amount converted by the amount conversion unit 53 or displays the amount received from the consumer. The printer output unit 57 prints out the money amount converted by the money amount conversion unit 53 at the time of settlement, prints out the money amount converted at the time of setting the money amount, and uses the gas usage amount sent from the controller 3. Print out. The key input unit 59 inputs information such as an amount, a settlement instruction, a settlement completion instruction, and a setting instruction.

The operation of the prepaid supply control device of the first embodiment thus configured will be described. First, a normal gas supply operation when the frequency adjuster 5 is not connected to the controller 3 will be described. When the prepaid card 7 is inserted into the card insertion section 34, the card reading section 33 causes the prepaid card 7 to be inserted.
Is determined to be normal. If the prepaid card 7 is normal, the card reading unit 33 reads the prepaid card 7
The card frequency is read from, and the card frequency is sent to the calculation unit 35.

On the other hand, the gas usage measured by the measuring unit 11 of the gas meter 1 is transmitted to the serial communication unit 3 via the signal line 2.
1 and the used amount of the gas is input to the calculation unit 35 via the control unit 45. Calculator 3
The frequency is converted to a frequency at 5, and the frequency corresponding to the gas usage is subtracted from the card frequency stored in the prepaid card 7, and the obtained new frequency is set as the remaining frequency.

Then, the remaining number is displayed on the display unit 37, and the remaining number is written on the prepaid card 7 by the card writing unit 39. Further, the control unit 45 determines whether or not the residual frequency has become zero. If the residual frequency has become zero, an open / close signal is sent to the gas meter 1, so that the shut-off valve 13 of the gas meter 1 is closed. The use of gas is stopped.

Next, a case where the frequency adjuster 5 is connected to the controller 3 to set the frequency and settle the frequency will be described with reference to flowcharts shown in FIGS.
First, the operation of the controller 3 when the frequency is settled (when the gas is closed) will be described with reference to the flowchart of FIG.

The frequency input / output communication unit 32 determines whether or not a settlement instruction has been received from the frequency adjuster 5 (step S).
11) When the payment instruction is received, the card reading unit 3
At 3, the card frequency stored in the prepaid card 7 is read (step S13), and the prepaid card 7 is set to be unusable (step S15).

Further, the memory frequency stored in the storage unit 41 is read out, and the calculation unit 35 adds the card frequency of the prepaid card 7 to the memory frequency to obtain a total frequency (step S17). Then, the obtained total frequency is transmitted from the frequency input / output communication unit 32 to the frequency adjuster 5 via the signal line 4 (step S19). Thereafter, the total frequency is cleared by the control unit 45 (step S2).
1) An open / close signal is sent to the gas meter 1 via the serial communication unit 31, and the shutoff valve 13 is closed (step S2).
3).

Next, the operation of the frequency adjuster 5 when the frequency is settled (when the gas is closed) will be described with reference to the flowchart of FIG. First, a settlement instruction for adjusting the frequency is transmitted from the control unit 63 to the controller 3 through the communication unit 51 (step S31).

Then, it is determined whether or not the total frequency has been received from the controller 3 (step S33). If the total frequency has been received, the frequency conversion unit 53 converts the total frequency into money (step S33). S35). Further, the amount converted by the amount conversion unit 53 is displayed on the display unit 55 (step S37), and the amount converted by the amount conversion unit 53 is printed out to the printer output unit 57 (step S3).
9). Then, when the printout of the amount is completed and the refund to the consumer is completed, a settlement completion instruction is sent to the controller 3 (step S41).

As described above, the frequency adjuster 5 is connected to the controller 3 so that the remaining frequency can be adjusted when the cap is closed. Therefore, even if the prepaid card 7 has a residual number at the time of closure of a rental-type house with a limited period, such as a weekly apartment or a lodge, the residual amount can be settled. It can be used later.

Next, the operation of the frequency adjuster 5 when the frequency is set (when the gas is opened) will be described with reference to the flowchart of FIG. First, when the amount received from the consumer is input from the key input unit 59 (step S51), the amount received is displayed on the display unit 55 (step S53).

The received amount is converted into a frequency by a frequency / money conversion unit 53 (step S55), and the converted frequency is printed out on a print output unit 57 (step S57). And the frequency are transmitted to the controller 3 (step S59). further,
It is determined whether or not a frequency setting completion instruction has been received from the controller 3 (step 61). If the frequency setting completion instruction has been received, the process is terminated.

Next, the operation of the controller 3 when setting the frequency will be described with reference to FIG. First, it is determined whether or not a frequency setting instruction has been received from the frequency adjuster 5 (step S7).
1) When the frequency setting instruction is received, the frequency adjuster 5
It is determined whether or not the frequency obtained in (1) has been received (step S73).

When the frequency is received, the frequency is stored in the storage unit 4.
1 (step S75), the control unit 45 sends an open / close signal to the gas meter 1 via the serial communication unit 31 and the signal line 2, and opens the shutoff valve 13 (step S7).
7). Thereafter, a frequency setting completion instruction is transmitted to the frequency adjuster 5 (step S79).

As described above, the frequency adjuster 5 can set the frequency in the storage unit 41 of the controller 3 and can reduce the burden on the consumer. The printer output unit 5
7 outputs usage details such as gas usage, remaining number, and money conversion value, so that the consumer can know the usage details accurately. In addition, gas charges can be reliably collected from consumers, and wasteful gas supply can be prevented.

<Second Embodiment> FIG. 7 is a block diagram showing a configuration of a second embodiment of a prepaid supply control device according to the present invention.
The prepayment type supply control device shown in FIG.
The gas meter 1a has a frequency adjuster 5 which can be connected via a signal line 4. The gas meter 1a according to the first embodiment
The configuration of the controller 3 shown in FIG.
1, shut-off valve 13, frequency input / output communication unit 32, card insertion unit 34, card reading unit 33, calculation unit 35, display unit 37, card writing unit 39, storage unit 41, alarm unit 43, and control these units And a control unit 45 that performs the control. In the configuration of the second embodiment, the same components as those of the first embodiment will be described with the same reference numerals.

In the second embodiment, the frequency setting device 5 is connected to the gas meter 1a, and the process of setting the frequency and adjusting the frequency is performed according to the flowcharts shown in FIGS. Here, in the first embodiment, the communication is performed between the controller 3 and the frequency adjuster 5, but in the second embodiment, the communication is performed between the gas meter 1a and the frequency adjuster 5. Therefore, the controller 3 in the flowcharts shown in FIGS. 3 to 6 may be replaced by the gas meter 1a.

As described above, the gas meter 1 having the controller
The frequency adjuster 5 can be connected to a, and the remaining frequency can be settled and the frequency can be set by the frequency adjuster 5, and the same effect as in the first embodiment can be obtained.

<Third Embodiment> FIG. 8 is a block diagram showing a configuration of a third embodiment of a prepaid supply control device according to the present invention.
The prepayment type supply control device shown in FIG. 8 includes a center 21, a network control unit (NCU) 8 connected to the center 21 via exchanges 23 and 25,
And a frequency meter 5 which can be connected to the NCU 8 via the signal line 4.

The center 21 has a microcomputer or the like (not shown), and upon receipt of a predetermined prepayment, the frequency corresponding to the prepayment is changed via the exchanges 23 and 25 by the NCU.
Send to 8. The exchange 25 has no ringing trunk 27
Is connected.

The NCU 8 includes a serial communication unit 31 connected to the gas meter 1, a frequency input / output unit 32 connected to the frequency adjuster 5, a card insertion unit 34, a card reading unit 33, a calculation unit 35, a display unit 37, a card Writing unit 39, storage unit 41,
It comprises an alarm unit 43, an NCU unit 47 connected to the line 26, a modem unit 49, and a control unit 45a for controlling these units.

The NCU 47 controls the line 22, the line 24, and the line 26, and receives the frequency from the center 21. The modem unit 49 modulates and demodulates the frequency and other information. In the configuration of the third embodiment, the same components as those of the first embodiment are denoted by the same reference numerals and described.

In the third embodiment, first,
The frequency transmitted from the center 21 via the exchanges 23 and 25 is received by the NCU 47, and the frequency is received by the modem 4
9. It is stored in the storage unit 41 in advance via the control unit 45a.

Next, the frequency adjuster 5 is connected to the NCU 8 to set the frequency and settle the frequency.
Is performed according to the flowchart shown in FIG. Here, in the first embodiment, the communication is performed between the controller 3 and the frequency adjuster 5, but in the third embodiment, the communication is performed between the NCU 8 and the frequency adjuster 5, so that the communication is performed. , The controller 3 in the flowcharts shown in FIGS.

As described above, the frequency adjuster 5 can be connected to the NCU 8, and the frequency adjuster 5 can be used to settle the remaining frequency and set the frequency. The same effects as those of the first embodiment can be obtained. Also, the frequency can be set from the center 21.

The present invention is not limited to Embodiments 1 to 3 described above. In the embodiment, the gas meter is shut off when the remaining frequency becomes zero. However, for example, the gas meter may be shut off when the remaining frequency becomes a predetermined frequency other than zero.

Further, in the embodiment, the gas meter is described as an example of the measuring device. However, the measuring device may be, for example, a water meter or a watt-hour meter. For example, if the controller is connected to the controller of the first embodiment, the frequency adjuster can set the frequency for the water rate and the electricity rate and adjust the amount.

[0054]

According to the present invention, at the time of frequency adjustment, the frequency adjuster is connected to the controller via the second signal line, and the frequency input / output communication unit in the controller is connected via the second signal line. When a balance instruction is sent out and the residual count read by the medium reading unit in the controller is received via the second signal line in response to the balance instruction, the received residual count is converted into a monetary value, and the open / close signal is converted to the first signal. (2) The signal is transmitted to the gas meter via the communication unit and the first signal line, and the supply path opening / closing unit is closed. Therefore, it is possible to settle the residual number of the storage medium and to stop supplying the supply body.

Further, the memory frequency stored in the storage unit is added to the card frequency stored in the prepaid card to obtain the total frequency, or the center frequency transmitted from the center via a line is stored in the prepaid card. adding the stored card degrees find the total power and from the total count, to find the total residual power by subtracting the number of degrees corresponding to the supply amount of the supply body from the meter, the second signal from the controller at checkout line
By converting the total remaining number sent via the server into an amount, the amount corresponding to the total remaining number can be settled.

When the frequency is set in the storage medium, the received amount is converted into a frequency, the converted frequency is transmitted to the controller via the second signal line together with the frequency setting instruction, and the second frequency is transmitted based on the frequency setting instruction . The frequency received via the signal line is stored in the storage medium.
Write on the body and send a second open / close signal based on the frequency setting instruction.
By transmitting the signal to the gas meter via the communication section and the first signal line to open the supply path opening / closing section, the frequency can be set and the supply body can be supplied.

Further, by printing the amount converted by the amount-to-money conversion unit at the time of settlement, the customer can know the amount at the time of settlement, and print the converted amount at the time of setting the amount. By doing so, the consumer can know the value of the set frequency.

[Brief description of the drawings]

FIG. 1 is a first embodiment of a prepayment type supply control device of the present invention.
It is a block diagram of a structure of.

FIG. 2 is an external view of a frequency adjuster according to the first embodiment.

FIG. 3 is a flowchart showing an operation of a controller at the time of settlement according to the first embodiment.

FIG. 4 is a flowchart showing the operation of the frequency adjuster at the time of adjustment according to the first embodiment.

FIG. 5 is a flowchart showing the operation of the frequency adjuster when the frequency is set in the first embodiment.

FIG. 6 is a flowchart showing the operation of the controller when the frequency is set in the first embodiment.

FIG. 7 is a second embodiment of a prepayment type supply control device according to the present invention.
It is a block diagram of a structure of.

FIG. 8 is a diagram illustrating a prepaid supply control device according to a third embodiment of the present invention.
It is a block diagram of a structure of.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas meter 3 Controller 5 Frequency settlement unit 7 Prepaid card 8 NCU 11 Metering unit 13 Shut-off valve 15 Microcomputer 17 Serial communication unit 21 Center 23, 25 Exchanger 31 Serial communication unit 32 Frequency input / output communication unit 33 Card reading unit 34 Card insertion Unit 35 calculation unit 37, 55 display unit 39 card writing unit 41, 61 storage unit 43 alarm unit 45, 63 control unit 47 NCU unit 49 modem unit 51 communication unit 53 conversion unit 57 printer output unit 59 key input unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G07F 7/08 G07F 15/06

Claims (7)

(57) [Claims] 1. A metering unit for metering the supply amount of the supply body, the supply passage opening and closing section for opening and closing the supply path for supplying feed body, the meter
The supply amount of the supply body measured by the measuring unit is supplied via the first signal line.
A measuring device having a first communication unit for transmitting, a medium reading unit for reading the frequency from a storage medium in which the frequency corresponding to the advance payment of the supply amount of the supply body is written, and a first communication unit in the measuring device Receive the supply of the supplier
The second communication unit, the supply amount of the supply body received by the second communication unit
To a frequency, and subtract the converted frequency from the frequency read by the medium reading unit; a medium writing unit that writes the remaining frequency obtained by the calculating unit to the storage medium; When the frequency is settled, the open / close signal is sent to the second communication unit and
An opening / closing control unit that transmits the gas to the gas meter via the first signal line to close the supply path opening / closing unit ,
Receives and sends the residual number read by the medium reading unit.
A controller having a frequency input / output communication unit for transmitting, and a settlement instruction to the frequency input / output communication unit in the controller via a second signal line when the remaining frequency of the storage medium is settled. Receiving the residual number read by the medium reading unit in the controller via the second signal line in response to the settlement instruction;
A prepayment-type supply control device, comprising: a third communication unit; and a frequency adjuster having a frequency / money conversion unit configured to convert a residual frequency received by the third communication unit into a monetary value. 2. The controller according to claim 1, further comprising : a storage unit in which a memory frequency corresponding to a predetermined prepayment is stored in advance, wherein the storage medium is a prepaid card; The stored memory frequency is added to the card frequency stored in the prepaid card to obtain a total frequency, and the frequency corresponding to the supply amount of the supply body from the measuring device is subtracted from the total frequency to obtain a total remaining frequency. The money amount conversion unit calculates the second amount from the controller at the time of settlement .
2. The prepayment type supply control device according to claim 1, wherein the total remaining number sent via two signal lines is converted into a money amount. And a center for communicating with the controller and transmitting a center frequency corresponding to the advance payment to the controller via a line when a predetermined advance payment is paid, and The storage medium is a prepaid card, and the calculation unit calculates a total frequency by adding a center frequency transmitted from the center via the line to a card frequency stored in the prepaid card. From the frequency, the frequency corresponding to the supply amount of the supply body from the measuring device is subtracted to obtain a total remaining frequency, and the frequency / money conversion unit is configured to perform the payment from the controller at the time of settlement .
2. The prepayment type supply control device according to claim 1, wherein the total remaining number sent via two signal lines is converted into a money amount. 4. The prepayment type supply control device according to claim 1, wherein the controller is provided in the measuring device. 5. In the frequency adjuster, the frequency conversion unit converts the received amount into a frequency when setting the frequency in the storage medium, and the third communication unit converts the received price into the frequency conversion unit. The frequency together with the frequency setting instruction .
Sending the signal to the controller via a signal line , wherein the medium writing unit writes the frequency received via the second signal line to the storage medium based on the frequency setting instruction, and The control unit transmits the open / close signal based on the frequency setting instruction to the second communication unit and the
The prepaid type supply control device according to any one of claims 1 to 4, wherein the supply path opening / closing portion is opened by transmitting the gas to the gas meter via a first signal line . 6. The prepayment according to claim 1, wherein the frequency settlement device includes a printing unit for printing the amount converted by the frequency amount conversion unit at the time of settlement. Type supply control device. 7. The prepayment-type supply control device according to claim 5, wherein the frequency settlement device includes a printing unit that prints the frequency converted by the frequency money conversion unit when the frequency is set.