JPH0831184B2 - Supply control device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to supply / interruption, supply amount, etc. of tap water, gas, electricity, hot water, etc. to a plurality of demand points. Prepaid type (prepaid type) at demand points
The present invention relates to a supply control device that automatically controls individual storage media.

2. Description of the Related Art Conventionally, for supplying gas, electricity, water, etc., for example, there is a supply control device described in JP-A-61-251994 as a device provided with a charge rate setting device inside a charge card device.

Further, there is a prepayment type power meter described in Japanese Patent Laid-Open No. 60-79490 that deducts the basic charge of power amount from the inserted token together with the pay-per-use charge.

SUMMARY OF THE INVENTION However, in such a conventional supply control device, when dealing with various businesses having different charge systems or when the price is revised, the internal charge of each individual supply control device is reduced. Since the rate setter and the basic charge setter can only be changed manually or online from the host computer, there is a problem that the change requires a great deal of labor and cost.

Therefore, an object of the present invention is to provide a prepaid storage medium with a usable amount of a supplier as well as for each of a plurality of types of suppliers or each amount used (when the fee system changes depending on the amount used).
By storing the conversion rate and basic charge of
The contents of the charge rate setting unit and the basic charge setting unit inside the device can be automatically updated by the storage medium, and special change work is required when responding to various businesses with different charge systems or when changing the charge. It is to be able to cope without it.

Means for Solving the Problems The supply control device according to the present invention has a supply path opening / closing means B for opening and closing a supply path A for supplying a supply body and a supply path A, as shown in the basic configuration of FIG. A supply amount detection means C for detecting the amount of the flowing supply member, a usable amount of the supply member, a conversion rate for converting the detection amount by the supply amount detection means C at a certain conversion rate, and a storage storing a basic charge. Medium D
And a reading / writing means E capable of reading the usable amount, the conversion rate, and the basic charge stored in the storage medium D, and rewriting the usable amount.
Rate setting means F for setting the rate read by the read / write means E, basic charge setting means G for setting the basic charge read by the read / write means E, and detection obtained by the supply amount detecting means C The rate conversion means H for converting the amount at the rate set by the rate setting means F, and the usable amount of the storage medium D are rewritten by subtracting the detected amount converted by the rate conversion means H and rewriting. Whenever the basic charge withdrawal time set by the basic charge setting means G is reached, the data change means I for controlling the read / write means E so as to be similarly subtracted and rewritten, and stored in the storage medium D. An opening / closing control means J for closing the supply path opening / closing means B when the usable amount reaches 0 is provided.

According to such a configuration, the supply amount detected by the supply amount detecting means C can be converted according to the conversion rate stored in advance in the storage medium D, and the converted value can be deducted from the usable amount of the storage medium. At the same time, it is possible to automatically withdraw the amount corresponding to the basic fee stored in advance in the storage medium at a predetermined payment time.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a system configuration diagram of a supply control device according to the present invention, which exemplifies tap water supply in a pension, an apartment, a condominium, and the like. This supply control device 10 is provided with a display unit L1 for displaying various data and the like, a card reader 12 as a reading / writing means, a card ejecting switch SW, a water blocking valve open display lamp L2, and a buzzer BZ on its main body 11. . A water meter 13 as a supply amount detecting means and a water blocking valve 14 as a supply path opening / closing means are connected to the main body 11. When a memory card (prepaid card) 15 which is a portable storage medium is inserted into the card reader 12,
The data stored in the card can be read and the calculated new data can be written. The memory card 15 is purchased by the user of each residence in advance from a business operator or administrator,
As shown in FIG. 3, the basic charge storage area 17 of the storage unit 16
Stores the amount of the basic charge, the conversion rate storage area 18 stores the conversion rate for each usage amount when the charge system changes according to the usage amount, and the usable amount storage area 19 stores a certain amount of usage. The amount of available water is stored.

FIG. 4 shows the internal structure of the supply control device 10. The supply control device 10 includes an information processing device CPU including a memory, a counter, a timer, and the like. Power is supplied to the power supply terminal VDD of the CPU by a power supply circuit 20, a switch detection circuit 21 for detecting ON / OFF of the card removal switch SW is connected to the input port I1, and a water meter 13 is connected to the input port I2. A water meter input circuit 22 for inputting the obtained pulse is connected. Further, the output port O1 is a water blocking valve control circuit 23 that outputs a pulse for opening and closing to the water blocking valve 14, and the output port O2 is a buzzer drive circuit 24 that drives a buzzer BZ.
The indicator drive circuit 2 that drives the indicator L1 at the output port O3
5. A lamp drive circuit 26 for lighting the water shield valve open display lamp L2 is connected to the output port O4. Further, the card reader 12 is connected to the input / output port I / O.

With such a configuration, when the memory card 15 is inserted into the card reader 12, the CPU reads out the usable amount stored in the memory card 15 by the card reader 12 and sends a signal to the display drive circuit 25 to enable the use. Display the quantity or the corresponding frequency on the display L1. At the same time, the CPU reads the conversion rate and the basic charge and stores them in the respective internal memories. Further, when the usable amount read from the memory card 15 is not 0, the CPU opens the water blocking valve 14 by the water blocking valve control circuit 23 and turns on the water blocking valve open display lamp L2 by the lamp drive circuit 26. Turn on the light.

However, when the usable amount of the memory card 15 is 0 or a different type of card, the card reader 12 does not accept the card and ejects the card, and the display L1 displays that the card cannot be used. In this case, the water shield valve 14 is not opened, and the water shield valve open display lamp L2 remains off.

Card reader for memory card 15 whose usable capacity is not 0
When inserted into 12, the water shutoff valve 14 is opened and water is used, the water meter 13 outputs a metering pulse for each fixed amount, and the pulse is taken into the CPU through the water meter input circuit 22,
Accumulated. Then, the CPU reads the conversion rate commensurate with the total integrated amount for each pulse input from the internal memory,
The charge is converted (multiplied) at the conversion rate, and the data (usage amount) corresponding thereto is subtracted from the usable amount of the memory card 15. In addition, the CPU reads the basic charge stored in another internal memory, converts (divides) the amount into the amount per day, and uses the internal clock to obtain data (usage amount) corresponding to the amount at a certain time every day. Is subtracted from the usable amount of the memory card 15.

When the memory card 15 is not inserted in the card reader 12, the basic charge for the number of days of use is stored in the internal memory, and when the memory card 15 is inserted, the basic charge is cleared in a lump.

When the remaining usable amount of the memory card 15 falls below a certain amount, the CPU causes the buzzer drive circuit 24 to ring the buzzer BZ for a few seconds to alert the user. Furthermore, in this state, continue to use the water, and when the usable amount of the memory card 15 becomes 0 or less, the card reader 12 spits out the memory card 15, and the CPU sends a signal to the buzzer drive circuit 24 for several seconds to output the buzzer BZ. Is struck for a few seconds, and the impermeable valve control circuit 23 closes the impermeable valve 14 to stop the supply of water. Here, the value of the data to be actually used and subtracted is larger than the remaining amount of the usable amount of the memory card 15, and when the value becomes negative, the CPU stores the value in the internal memory, The display drive circuit 25 drives the display L1 to display the value, and the lamp drive circuit 26 blinks the water blocking valve open display lamp L2. When the user inserts the usable memory card 15 into the card reader 12, it becomes usable by subtracting the minus amount from the usable amount.
When the remaining usable amount of the memory card 15 is equal to the value of the data to be subtracted, the lamp drive circuit 26 turns off the water blocking valve open display lamp L2.

Next, the flow of the above operation will be described in detail with reference to the flowchart of FIG. If the memory card 15 is not inserted in the card reader 12, the display unit is displayed in step S1.
For example, "Please insert a card" is displayed on L1, and when memory card 15 is inserted in step S2, it is determined in step S3 whether the card is valid, and if it is invalid, step
After branching to S4, the card is discharged from the card reader 12, and in step S5, for example, "This card cannot be used" is displayed on the display L1 and the process returns to step S1. If the card is valid in step S3, the process proceeds to step S6 to determine whether there is negative subtraction data in the internal memory of the CPU,
If there is, it subtracts from the usable amount of the card in step S7 and returns to step S3.

If there is no negative subtraction data in step S6, the usable amount of the card is displayed on the display L1 in step S8,
The conversion rate is stored in step S9, and the basic charge is stored in each internal memory of the CPU in step S10.
The basic charge per day is calculated in 11, and the water blocking valve 14 is opened in step S12, and the water blocking valve open display lamp L is displayed in step S13.
Turn on 2

Next, in step S14, the card removal switch S
Judge whether W has been pressed, and if so, step S
Branch to 15 and eject the memory card 15, step S16
At step S17, the impermeable valve 14 is closed, and at step S17, the impermeable valve open display lamp L2 is turned off, and the process returns to step S1. If the card take-out switch SW is not pressed in step S14, it is determined in step S18 whether or not the basic charge withdrawal time is reached, and if so, the basic charge per day is subtracted from the usable amount of the memory card 15 in step S19. , Jump to step S23. If it is not the predetermined time in step S18, it is determined in step S20 whether or not a metering pulse is input from the water meter 13 to the water meter input circuit 22, and if there is no input, the process returns to step S14. On the contrary, if there is an input, it is converted into the value of the usage amount at the conversion rate stored in the internal memory of the CPU in step S21, and then in step S22
Then, the value is subtracted from the usable amount of the memory card 15 and rewritten. Then, in step S23, the rewritable usable amount of the memory card 1 is displayed.

When it is determined in step S24 that the remaining amount of usable amount of the memory card 15 has decreased to a certain amount or less, the process branches to step S25, the buzzer BZ is sounded for several seconds, and the process returns to step S14. If the remaining usable amount of the memory card 15 is not 0 in step S26, step
Returning to S14, when it is 0, it is judged in step S27 whether or not there is a debt. When there is a debt, in step S28 the negative amount is stored in the internal memory of the CPU, and in step S29, the impermeable valve open display lamp L2 is made to blink. , Jump to step S31. When it is determined that there is no debt in step S27, the water shield valve open display lamp L2 is turned off in step S30, and the memory card 15 is discharged from the card reader 12 in step S31. Further, in step S32, the buzzer BZ is sounded for several seconds, and in step S33, the water blocking valve 14
Close and return to step S1.

If one memory card 15 stores basic charges and conversion rates for a plurality of suppliers, one supply controller can control supply of water, gas, electricity, hot water, etc. It can be carried out. Further, the basic charge may be collectively withdrawn from the memory card 15 on that day depending on the payment date stored in the memory card 15.

EFFECTS OF THE INVENTION According to the present invention, the charge prepaid storage medium stores the usable amount of the supplier and the conversion rate and the basic charge for each of the plurality of kinds of the supplier or each used amount, and The contents of the charge rate setting part and the basic charge setting part inside the device can be automatically updated by the storage medium, and when responding to various business entities with different charge systems or when the price is revised,
It is possible to respond without requiring special change work, and it is possible to save the labor and cost for the change.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of a supply control device according to the present invention, FIG. 2 is a system configuration diagram of an example thereof, FIG. 3 is a schematic diagram of a memory card, and FIG. 4 is an internal configuration of the supply control device. Is a block diagram of FIG. 5, and FIG. 5 is a flowchart of processing by the CPU. A ... Supply path, B ... Supply path opening / closing means, C ... Supply amount detecting means, D ... Storage medium, E ... Read / write means, F
…… Rate setting means, G …… Basic charge setting means, H ……
Rate conversion means, I ... data changing means, J ... open / close control means.

Claims (1)

[Claims] 1. A supply path opening / closing means B for opening / closing a supply path A for supplying a supply body, a supply amount detecting means C for detecting the amount of the supply body flowing through the supply path A, and a usable amount of the supply body, A storage medium D storing a conversion rate and a basic charge for converting the amount detected by the supply amount detecting means C at a certain conversion rate, and an available amount, a conversion rate and a basic charge stored in the storage medium D. A read / write unit E that can read and rewrite the usable amount, a rate setting unit F that sets the rate read by the read / write unit E, and a basic charge read by the read / write unit E A basic charge setting means G for setting the above; a rate conversion means H for converting the detection amount obtained by the supply amount detection means C at the rate set by the rate setting means F; The usable amount of the storage medium D is calculated by the rate conversion means H.
The read / write means E is controlled so as to be rewritten by subtracting only the detected amount converted by the above, and at the same time each time the basic charge withdrawal time set by the basic charge setting means G is reached, the same is subtracted and rewritten. A data changing unit I for opening and closing, and an opening and closing control unit J for closing the supply path opening and closing unit B when the available storage amount in the storage medium D reaches 0. Control device.