KR830002627B1 - Control circuit of vending machine - Google Patents

Abstract

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Description

Control circuit of vending machine

1 is a block diagram showing the configuration of a conventional vending machine control circuit.

2 is a block diagram showing an example of the configuration of the vending machine control circuit according to the present invention.

3 (a) to 3 (h) are signal waveform diagrams showing the operation timing of each part.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control circuit of a vending machine, and in particular, to simplify the circuit configuration so that the manufacturing price can be reduced.

Recently, with the diversification of varieties of products sold automatically according to the trend of the market, the number of installation of the automatic vending machine is increasing rapidly, and there is a tendency to sell many kinds of products by one vending machine. Therefore, it is necessary to change the varieties of sales products of the vending machine installed with the increase in the variety of products to be sold automatically and to change the set value of the selling price in accordance with the variety change. In addition to constructing a vending machine so that it can be easily coped with, it is urgently necessary to make the vending machine's configuration not complicated or large, even if the number of price set points increases, simplify the configuration of the vending machine, and lower the manufacturing price. It is requested.

As a selling price setting mechanism in a vending machine, a conventional control circuit as shown in Fig. 1 is schematically used, and a sale handled by the vending machine is contained in a control circuit shown by a broken line. Corresponding to the kind of price, the same number of stretch processing sales control units 1-1 to 1-3 and price setting switch circuits 2-1 to 2-3 are provided.

The operation of such a conventional vending machine will be described briefly. Each control unit 1-1 to 1-3 displays a coin input signal CI indicating the type of coin put (for example, 10 yen, 50 yen, 100 yen coin). ) The total input amount is counted in each of them, and the coin input amount is compared with the amount of the selling price set by the corresponding number position circuits 2-1 to 2-3, respectively. The control unit (1-1 to 1-3) judges whether or not the sale is possible for each of -3), and sells the corresponding sales signals S-1 to S-3 for each control unit (1-1 to 1-3). Is guided to the end circuit 3 which is installed in common.

Again, P1 to P3 are product selection switches arranged to display the product for each product to be sold, and the purchaser selects the product by pressing a desired one of these product switches P1 to P3 at the time of purchasing the desired product. The switch outputs of the selection switches P1 to P3 of these products are applied to the end circuit 3 described above, where the sales signal S-1 and the switch output of the switch P1, the sales signal S-2 and the switch output of the switch P2 and the sales signal S Obtain the -output of the switch output of -3 and the switch P3, respectively, and take out the output of the AND. Therefore, if the end output between the switch output for the product designated by any of the product selection switches P1 to P3 and the sales signal corresponding to the input amount of the sales signals S-1 to S-3 is satisfied, the AND circuit 3 is established. Outputs a matched output signal, sends a drive signal for the commodity to the relay driver 4, drives a relay corresponding to the selected product among the relays X1 to X3, and takes out a product to be sold. To do it. At the same time, each of the control units 1-1 to 1-3 is applied with a reset signal R taken out from the above AND output in the form of OR, and all the control units 1-1 according to which of the end outputs are induced. Reset ~ 1-3.

The control circuit of the conventional vending machine described above requires (1) a plurality of control circuits depending on the type and number of selling prices to be set.

(2) Whenever the type and number of sales prices increase, the operation processing sales control units 1-1 to 1-3 must be expanded, thus increasing the manufacturing price.

(3) It is not possible to modify the control circuit (dashed block in the first city) of an existing vending machine in response to a change in the method after installation of the vending machine, that is, an increase in the number of selling prices. Many problems were occurring.

Therefore, the object of the present invention is to solve the above-mentioned problems and to eliminate the shortcomings, regardless of the type and number of selling prices, the control circuit is uniformly used in various vending machines. It is intended to provide a control circuit of a vending machine that can reduce the manufacturing price significantly and standardize the manufacturing price.

That is, the control circuit of the present invention allows a single arithmetic processing sales control unit to check the amount of input coins and the actual selling price so that a plurality of selling price set values can be switched and used. A control circuit for controlling a vending machine that sells only products whose price set for each coin is suitable for the amount of the coin charged according to the operation of the product selection button, and individually sets a plurality of price setting signals corresponding to the plurality of products. And when the price setting signal is taken out in time sequence according to the switching signal, and the plurality of price setting signals taken out in time order according to the switching signal and the coin input signal. An arithmetic processing sales control unit for transmitting a signal; the selling signal; and the plurality of sequential switching signals; A product selection circuit from a product selection switch for selecting a desired product among the two product selection switches in time sequence, and having a product selection circuit for sending out a drive signal when their signals are matched; It is characterized in that to selectively drive the product take-out mechanism of the vending machine.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

An example of the schematic structure of the vending machine using the 5th ash of this invention is shown in FIG. 2, and the timing diagram of the control operation is shown to FIG. 3 (a)-3 (h). As apparent from the comparison between the control circuit of the present invention shown in FIG. 2 and the conventional circuit of FIG. 1, in the control circuit of the present invention, a plurality of selling price setting switch circuits shown in FIG. A single arithmetic processing sales control unit 11 is provided in common with -1 to 12-3, and the coin input signal CI is supplied to the common control unit 11, and the switch circuits 12-1 to 12-3 are provided. Each output of is applied to the common control unit 11 in the form of a wire oar. Here, a timing switching circuit 13 is provided in order to switch between the common sales control section 11 for a plurality of sales price set values, and from this timing switching circuit 13, the third (a) degree to the first As shown in Fig. 3 (c), the sequential switching signals A, B, and C having an appropriate time width are repeatedly generated at regular intervals.

Here, for example, there are three selling price setting switch circuits as indicated by symbols 12-1 to 12-3, and among those three switch circuits 12-1 to 12-3, 12-1 and (12-). 3) are all set to 10 yen, and (12-2) is set to 20 yen, and 10 coins out of 10, 50, and 100 yen are inputted, and therefore, 10 coin input signals. Is sent to the arithmetic processing sales control unit 11, and the three product selection switches P1, P2, and P3 correspond to the three relays X1, X2, and X3 of the product discharging mechanism, respectively. According to the sequential switching signals (A), (B) and (C) from the switching circuit 13, the price setting signals from the switch circuits 12-1, 12-2 and 12-3 are Each of them is sequentially switched and supplied to the arithmetic processing sales control unit 11, and their sequential switching signals A, B and C themselves are shared with the end circuit 14 and the relay driver 13, respectively. It is urgent. In the arithmetic processing sales control unit 11, the price setting signals sequentially supplied from the switch circuits 12-1 to 12-3 and the coin input signal CI are compared sequentially, and are sold when both are matched and available for sale. Send the signal (D).

Since a coin input signal of 10 yen is currently supplied, the setting of 10 yen from the switch circuits 12-1 and 12-3 corresponding to the sequence switching signals A and C, respectively, among the sequentially priced signals is provided. Only when a signal has been sent is the selling signal D generated at the timing shown in (D) of FIG. 3 (I) and supplied to the AND circuit 3. In the AND circuit 3, the sales signal D from the sales control unit 11 and the sequential switching signals A, B and C from the timing switching circuit 13 and the product selection switches P1 and P2. And the product selection signal from P3, and when these three signals match, the drive signal G (see also third (g)) is sent out. That is, since the product selection switches P1, P2, and P3 correspond to the selling price setting switch circuits 12-1, 12-2, and 12-3, respectively, the coin input signal CI of 10 yen is as described above. Similarly, when the selling signal D is generated, the timing of the sequential switching signals A and C corresponding to the switch circuits 12-1 and 12-3 for generating the 10-en setting signal, respectively, When the selector switches P1 and P3 set to select a product having a price of 10 yen are operated by pressing the button of the product selection switch while the switching signals A and C are generated, respectively, the driving signal G is used as the timing of each. ) Is sent out.

For example, as shown in (A) and (D) of FIG. 3 division [I], the third (e) is generated in the state in which the sales signal D is generated in correspondence to the switching signals A and C. Considering the case in which the switch output E is taken out by pressing the button of the selector switch P1 as shown in Fig. 2), the selector switch P1 is turned at the timing of the switching signal A as shown in FIG. When the switching signal A is generated while the button is pressed or the button of the selection switch P1 is pressed, the AND output G is taken out from the AND circuit 14 and the driving signal (at the timing shown in FIG. G) is supplied from the AND circuit 14 to the relay driver 15, generates a relay drive signal H (see also third (h)) at the same timing to drive the relay X1 corresponding to the selection switch P1. The goods selected by the switch P1 are carried out, and at the same time, the common control unit 11 is reset by the drive signal G. In the above operation example, when the switch output F is obtained by pressing the selector switch P2 as shown in FIG. 3 (f), the selling signal D is generated as the timing of the switching signal B. Since no drive signal G is obtained.

In the above description, as shown in FIG. 2, the sequential switching signals from the timing switching circuit 13 are also supplied to the relay driver 15, but the relay actuator 15 is particularly sequential. Without supplying a switching signal, the circuit is configured as in the conventional circuit shown in FIG. 1, and the drive circuit for the commodity is sent to the relay driver 15 by matching the signals in the AND circuit 14 to the selected circuit. The relay corresponding to the product can be driven.

As apparent from the above description, in the control circuit of the present invention, the timing change circuit is used to switch the coin input amount and the arithmetic processing corresponding to the plurality of selling price set values in a sequential order, and according to the present invention, Regardless of the selling price set number, a single arithmetic processing sales control unit can be provided to cope with a plurality of set price values. Therefore, the configuration of the control circuit can be common to various vending machines. The manufacturing price can be greatly reduced. In addition, if the selling price setting number is changed in accordance with the request of the vending machine installer, only the price setting switch circuit needs to be added, so that the changing of the selling price setting number becomes easier than in the related art.

Claims (1)

By comparing the total amount of the input coins with the set prices of a plurality of products, it is determined whether the sale is possible and by operating the product selection switches P1, P2, and P3 corresponding to the plurality of products described above, A timing switch circuit 13 which outputs the switching signals A, B, and C corresponding to the plurality of products in sequence, in a vending machine for determining that a product of "i)" is selected and selling this product. ), The price setting circuit 12 which repeatedly outputs the set price of the corresponding product in sequence according to the output of this switching signal, and compares the set price outputted to this price setting circuit with the above-mentioned total amount. The operation processing sales control unit 11 which outputs the sales signal D when "is" and the corresponding product selection switch are operated according to the above-described switching signal, and the above sales signal is detected. By award That the selection of which includes a product selection circuit 14 to determine the control of vending machines, characterized in circuit.

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