JPH0631576Y2 - Vending machine pricing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a vending machine for setting a selling price of a product in a semiconductor memory device.

(B) Prior art Japanese Patent Application Laid-Open No. 53-29197 discloses such an automatic vending machine.
There is a technique disclosed in the publication. In this conventional technique, the price information input by the price input device is set in the corresponding storage unit of the non-volatile memory designated by the selection switch. Similar technology is described in U.S. Pat.
It is also described in the specification of No. 105, and it is described that the memory is electrically rewritable and has a large number of addresses, and the price information for each product type is stored in each address of the memory. .

Furthermore, for example, as shown in Japanese Patent Publication No. 56-35231, when a customer inputs money, the vending machine compares the input amount with each selling price, and the input amount exceeds all the selling prices. In addition, there is a known vending machine configured to automatically return the input amount when no product can be purchased due to a change of money or the like.

(C) Problems to be solved by the invention By the way, the control unit of the vending machine including such a price setting device is often unitized. The control unit is easily separated from the vending machine body and can be easily replaced. Therefore, the control unit that is incorporated in a certain vending machine and stores N kinds of selling prices at N addresses of the memory is transferred to another vending machine, and here, m (<N) kinds of selling units are stored. The selling price is m of memory
When stored in the individual addresses, the price related to the previous vending machine remains as it is at the addresses corresponding to the remaining (nm). This does not cause any abnormality in the direct selling operation, but may hinder the structure for automatically returning the amount of money to be paid, which is shown in the above-mentioned conventional technique. That is, the price P1 set in the previous vending machine remains in the price setting device, and the price P1 is larger than the maximum price P2 set in the subsequent vending machine (P1> P2). , Even if the amount of money M that the customer has invested is more than the price P2 and no product can be purchased with the amount of money M, if it is in the range of P1>M> P2, it will not be automatically returned. . What happens is that even if the price is higher than all the prices set for the vending machine, it does not satisfy the condition of M> P1 yet, so it is considered that the input amount M exceeds all the selling prices. There is the inconvenience of not being returned and thus not being returned.

From the above point of view, the present invention provides a price setting device capable of clearing all the selling price storage areas of the memory regardless of the number of price settings.

(D) Means for Solving Problems The present invention has a mode switching device for designating a price setting mode and a plurality of selling price storage areas for individually storing price information for each product type. A memory device, a price input device for inputting a selling price to be set, a price setting control device for loading input price information into a predetermined selling price storage area in response to the input of the selling price by the price input device, and a price setting mode And a set price clearing device that clears all the selling price storage areas in response to the operation of a predetermined clear switch in the above.

(E) Operation With the above configuration, by operating the clear switch in the price setting mode, it is possible to clear the entire selling price storage area of the memory.

(F) Example FIG. 1 shows a block diagram of a control device of a vending machine, and (1) calculates the amount of money to be input based on the input money signal C for each currency type, and the amount of change after sale. Amount calculation device for calculating, (2) a memory device with a selling price storage area corresponding to each sale product, (4) a sales drive device that drives a product dispensing device for each product, (5) a sales product (7) is a change dispensing device, and (6) is a sales control device. And (9) is a mode switching device for switching the vending machine between the selling operation mode and the price setting mode, and the selling control device in the selling operation mode (6)
Works. Also, (8) is a price input device that inputs the selling price to be set at the time of price setting, (10) is a price setting control device that operates in the price setting mode, and (11) is the operation of the clear switch (3) in the price setting mode. Is a set price clearing device that clears all the selling price storage areas of the memory device (2).

In the sales operation mode, the sales control device (6) compares the input amount of money of the amount calculation device (1) with the selling price of each product set in the memory device (2), and depending on the change and the presence or absence of the product. Determine which products can be sold. Then, when the selection switch of the selection device (5) is operated, the sales control device (6) operates the sales drive device (4) when the selected product is a salable product, and operates the product dispensing device related to the selected product. Drive and sell products. On the other hand, the sales control device (6) reads the selling price of the selected product from the memory device (2) and calculates the amount of money (1)
When the change is required, the change payment device (7) is operated according to the calculation amount of the amount calculation device (1).

On the other hand, in the price setting mode, when the selling price to be set is introduced from the price input device (8) and the product is specified by operating the selection switch of the product selection device (5),
The pricing control device (10) is a memory device for a specified product type.
Address the sales price storage area in (2) and write the set sales price. In the price setting mode, clear switch
By operating (3), the set price clearing device (11) clears all the selling price storage areas of the memory device (2). Therefore, by operating the clear switch (3) before price input, the entire storage area of the memory device (2) can be cleared, and old data will not remain in the remaining storage area after price input. The price input device (8) is composed of a conventionally known input device such as a numeric keypad or a setting switch using a binary code, but the price input device (8) can also be input by inserting money for the selling price to be set. In this case, the function of calculating and outputting the input money amount of the money amount calculation device (1) also serves as the price input device (8), and the price setting control device (10) operates in the price setting mode (1). The input amount information shown in) is set in the memory device (2) as a set selling price.

FIG. 2 shows an embodiment in which the control of the vending machine is achieved by the CPU (20), but shows only the portion related to the price setting according to the present invention. Each of the input / output terminals of the CPU (20) has m selection switches (S
₁ ) to (S _m ) and a self-reset type mode switch (2
Similarly, 3), a self-reset type clear switch (3), and a money signal generator (22) that outputs a money signal to be inserted according to the kind of money to be inserted into the vending machine are connected. And CP
The U (20) internally includes a deposit amount register TC, a mode flag register MF, a clear flag register CF, and N selection flag registers SF _{1 to} SF _N. RAM (2
1) includes N addresses, and the selling price can be set for N kinds of product types. The input of the selling price to be set in this example is performed by actually inputting a considerable amount of money.

The operation of the CPU (20) will be described with reference to the flowcharts of FIGS. 3 and 4, but the input detection flow of FIG. 4 is periodically processed by a timer interrupt. The CPU (20) sets "1" in the mode flag register MF when detecting the operation of the mode changeover switch (23) in the input detection flow. Then, when returning to the main flow of FIG. 3, the CPU (20) performs the process of the price setting mode by setting the mode flag.
Then, when the CPU (20) detects the operation of the clear switch (3) in the processing of the input detection flow, it sets "1" in the clear flag register CF. Then, when returning to the main flow, the CPU (20) clears all the addresses storing the selling price of the RAM (21) and resets the clear flag by setting the mode flag and the clear flag.

On the other hand, when the CPU (20) detects the operation of any one of the selection switches (S ₁ ) to (S _m ) in the processing of the input detection flow, the selection flag registers SF _{1 to} S ₁ corresponding to the selection switch are detected.
When F _N is set to “1” and the input money signal by the input of money is input in the processing of the input detection flow, the input money amount is calculated by the signal and stored in the register TC. However, if the CPU (20) has set the selection flag in the price setting mode and has stored the input amount in the register TC, the set selection flag SF is set.
The address of the RAM (21) corresponding to _{1 to} SF _N is designated, and the amount of money deposited in the register TC is loaded. After the price setting for the product type corresponding to the operated selection switches (S ₁ ) to (S _m ) is completed, the CPU (20) resets the selection flag. When setting the same price for other product types, the selection switch is operated to set the selection flag in the input detection flow, the flow returns to the main flow, and the register TC in the address corresponding to the RAM (21) is set. Load the input amount. When additional money is inserted and the selection switch is operated, the above operation is repeated, and the amount of money inserted at this time is stored as a selling price in a predetermined address of the RAM (21).

When the second operation of the mode selector switch (23) is performed,
At this time, since "1" is set in the mode flag register MF, the CPU (20) resets the mode flag. Therefore, when returning to the main flow, the CPU (2
In 0), the processing of the price setting mode is terminated and the process proceeds to a normal sales control routine.

In this way, if the clear switch (3) is operated in the price setting mode prior to the price input, all the N addresses for storing the selling price of the RAM (21) will be cleared. RA is the selling price for each product type
When stored at m addresses of M (21),
The store data for the remaining (N−m) addresses is “0”. Therefore, even if some selling prices are stored in the RAM (21) before setting, the old price data is surely erased after setting the new price data.

Although the clear switch is provided in each of the above embodiments, another switch not used in the price setting mode may be used instead. As such a switch, there are a return switch and a total switch.

(G) Effect of the invention According to the invention, the old price data can be surely erased by operating the clear switch when transferring to the vending machine having different kinds of products. Therefore, the number of sales prices corresponding to the number of products selected is set, and the compatibility of the price setting device is enhanced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control device for a vending machine according to the present invention, FIG. 2 is a diagram showing an embodiment constituted by a CPU, and FIGS. 3 and 4 are for explaining the operation of the CPU. It is a flowchart. (2) …… Memory device, (3) …… Clear switch, (8) ……
Price input device, (9) …… mode switching device, (10) …… price setting control device, (11) …… set price clearing device.

 ─────────────────────────────────────────────────── --- Continuation of the front page (56) Reference JP-A-57-199086 (JP, A) JP-A-59-45598 (JP, A) JP-A-55-29775 (JP, A) JP-A-53- 118074 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A mode switching device for designating a price setting mode, a memory device having a plurality of selling price storage areas for individually storing price information for each product type, and a selling price to be set. A price input device for inputting, a price setting control device for loading input price information in a predetermined sales price storage area in response to a sales price input by the price input device, and a predetermined clear switch operation in the price setting mode A vending machine price setting device comprising a set price clearing device which responds to clear all the selling price storage areas.