JPH0636228B2 - Raw material sold-out detection device for vending machines - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic vending machine that mixes and sells a plurality of powder raw materials, and more particularly to a sold-out detection device for the powder raw materials.

Structure of conventional example and its problems Conventional powder raw material sold-out detection device of vending machine that mixes and sells multiple powder raw materials each time it is sold, the amount of powder raw material used for sale Was subtracted from the total amount of the powdered raw material put in the storage box, and when the subtracted amount reached a predetermined sold-out amount, it was sold out and the powdered raw material was used for sale. It was to turn on the sold-out lamp of the product. With this conventional sold-out detection device, the amount of powder raw material used that is subtracted from the total amount of powder raw material placed in the storage box before the start of sale is not the amount adjusted by the increase / decrease switch, but is increased / decreased. The previous reference amount, that is, the amount that is carried out when the increase / decrease switch is not pressed, has been the basis.

However, this kind of setting of the amount of powder raw material to be subtracted does not lead to accurate detection of sold-out, and in an extreme case, when the increase switch is pressed continuously, sold-out powder is actually sold out It had the drawback of not being.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to correctly calculate the decrease amount of powder raw material and detect sold-out.

In order to achieve this object, a raw material sold-out detection device for a vending machine according to the present invention has a plurality of product selection switches for selecting different sales products, and a specific powder raw material in the products selected by the product selection switch. Increase / decrease switch for selecting increase / decrease, sold-out indicator lamp for indicating that the sold product is sold out, and detection of selection of each of the product selection switch, the increase switch and the decrease switch. Switch detection means, first storage means for storing the amount of powder raw material in the storage box, second storage means for storing a predetermined discharge amount of powder raw material to be carried out at the time of one-time sale, and the increase switch Third storage means for storing an amount to be increased above a predetermined discharge amount of the powder raw material when is selected,
The fourth storage means stores an amount to be reduced from a predetermined discharge amount of the powder raw material when the weight reduction switch is selected, and the second storage means when the switch detection means detects that only the commodity selection switch is selected. The stored amount is used as the carry-out amount of the powder raw material, and the third storage is added to the storage amount stored in the second storage unit when the detection unit detects that the product selection switch and the increase switch are selected. The amount stored in the means is added to calculate the carry-out amount of the powder raw material, and the amount stored in the second storage means when the switch detection means detects that the product selection switch and the weight reduction switch are selected. And a carry-out amount calculation means for calculating the carry-out amount of the powder raw material by subtracting the amount stored in the fourth storage means, and the carry-out amount calculation from the amount stored in the first storage means. The remaining amount calculation means for storing the amount obtained by subtracting the amount calculated in the stage as a new amount of the powder raw material in the storage box in the first storage means, and the remaining amount calculated by the remaining amount calculation means. When the sold-out determination means determines whether or not the amount is below a preset sold-out amount, and when the remaining amount is determined by the sold-out determination means to be below a preset sold-out amount It has a sale stopping means for displaying the sold-out display lamp of the product using the powder raw material and stopping the sale of the product using the powder raw material.

Description of Embodiments An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 is a CPU for performing human output signal processing, and reference numeral 2 is a coin detection mechanism for detecting coins inserted into the vending machine and generating a signal representing the inserted amount. 3a to 3n are raw material setting switches for setting the amount of raw material to be carried out and the total amount of raw material, and 4a to 4n are switches including various increase / decrease switches for designating products to be sold. Further, 5a to 5n are sold-out display lamps indicating that the products to be sold are sold out, and 5o to 5z are sellable lamps of the products. Reference numerals 6a to 6d are raw material carrying-out relays for driving motors (all will be described later) for carrying out various raw materials. Reference numeral 7a is a hot water discharge solenoid valve, and 7b is a relay for individually driving a mixing ball mixing motor (each of which will be described later).
2, 3a to 3n, 4a to 4n are connected to the input ports of the above, and 5a to 5n and 6a to 6 are connected to the output ports thereof.
d, 7a-7b are connected.

There is a RAM 8 in the CPU 1, and the raw material setting switch 3a
To 3n, the amount of raw material for each cup for each product, that is, in the case of coffee, the amount of coffee raw material, the amount of cream, and the amount of sugar are written separately, and the increase / decrease amount of each individual raw material is also written. . Further, the price for each product is also written in the RAM 8 for each product. FIG. 2 is a diagram showing a supply system of raw materials and the like in this kind of vending machine, 10 is a water tank, 11 is a heater, 12a is a raw material tank for coffee, 12b is a raw material tank for cream, 12
c is a raw material tank for sugar, 12d is a raw material tank for cocoa, and 13a to 13d are motors for releasing raw materials provided in the respective raw material tanks. Rotation of each motor opens the discharge port to a predetermined value. Raw material is shooter 14,1
5, the amount of the raw material released is controlled according to the length of time that the discharge port is open.

Reference numeral 16 is a mixing ball, and 17 is a cup for receiving a drink such as coffee or cocoa to be sold. Then, the tap water is supplied to the water storage tank 10 via the intake valve 18. In addition, 19 is a hot water discharge solenoid valve, and shooters 14, 15
To supply hot water.

For convenience of explanation, for example, the relay 6a is a motor 13a for coffee, the motor 6b is a motor for cream 13b, 6b.
c is a sugar motor 13c, 6d is a cocoa motor 1
3d and 7a are hot water discharge solenoid valves 19 and 7b are relays for controlling the mixing balls.

Next, the operation of the control device for the vending machine having the above configuration will be described.

First, it is assumed that the raw material tanks 12a to 12d store a predetermined amount of the raw material shown in the above configuration. The amount of the raw material contained in each raw material tank 12a to 12d at this time is written in the RAM 8 by the raw material setting switches 3a to 3n, and in the same manner, the raw material setting switches 3a to 3d.
At, the amount to be carried out when each raw material is sold once (that is, the operating time of the motors 13a to 13d) and the increase / decrease amount of each raw material are also written.

Now, when the customer puts, for example, 100 yen into the vending machine, the coin detecting mechanism 2 sends a signal corresponding to 100 yen to the CP.
Send to U1. The CPU 1 determines a product that can be sold based on the input amount, and outputs 1 from the sellable lamp 15n of the corresponding product.
Display either 5z. Available for sale Lamp 15n to 1
By turning on 5z, the customer knows that a predetermined product such as coffee can be sold, and turns on any one of the switches 4a to 4n corresponding to the sold product such as hot coffee, and the cream, Turn on or off one of the sugar increase / decrease switches, and the CPU 1 turns this switch 4a
4n to 4n, the one that is turned on is read, and it is detected that the sale of any one product such as hot coffee is instructed. When hot coffee is selected, the coffee raw material amount, the sugar amount, the cream amount, and the increase / decrease amount are read from the RAM 8, and the time corresponding to each raw material amount is calculated, and each of the relays 6a to 6d is selected. The one corresponding to the raw material is turned on for the calculated time, a predetermined one of the motors 13a to 13d is driven, and a predetermined amount of the coffee raw material, cream, and sugar is supplied from each of the predetermined tanks 12a to 12d. discharge.

Similarly, the relay 7a is turned on to open the hot water discharge solenoid valve 19, and a predetermined amount of hot water is discharged from the water tank 10 to the cup 17. When the temperature of the water storage tank 10 falls below a predetermined temperature, for example, the heater 11 is energized to heat the water in the water storage tank 10. When the water temperature in the water storage tank 10 rises to a predetermined temperature, the power supply to the heater 11 is stopped. Further, when the amount of water in the water storage tank 10 becomes less than or equal to a predetermined amount, the water intake valve 18 opens, water is supplied to the water storage tank 10, and when the amount of water becomes less than the predetermined amount, the water intake valve 18 is closed.

Now, when the above-described sales operation is performed, the CPU 1 calculates the amount of each raw material sold, including its increase and decrease, and stores it in the RAM 8
Is subtracted from the total amount of each raw material written in, and the subtracted raw material amount is newly written into the RAM 8 as the total raw material amount, and the subtracted raw material amount becomes a predetermined raw material sold-out amount. When it reaches, the CPU 1 displays the corresponding lamp out of the sold-out display lamps 5a to 5n as a sold-out item to be sold by using the raw material, and thereafter stops the selling operation of the illuminated lamp. Of.

An example of the above control contents is shown in FIG.

In the figure, Step 1 is a judgment as to whether or not a coin has been inserted, and if so, go to Step 2. Step 2 is a process of turning on a sellable lamp of a product that can be sold with the inserted coins, Step 3 is a determination as to whether a switch for selecting a product that can be sold has been pressed, and if so, Step 4
Go to Step 4 is a determination as to whether the increase / decrease switch has been pressed, and Step 5 is a process of setting the amount of each material to be carried out.
If the increase / decrease switch is pressed in Step 4, the raw material amount including the processing is set, and if not, the standard raw material amount is set. Step 6 is a process of carrying out the amount of each raw material set in the step 5 by the set amount and performing the selling operation. Step 7 is a process of whether the sale is finished, and Step 8 is a process of subtracting the used raw material from the total amount of each raw material after the sale is finished. At this time, the subtracted amount includes the amount due to the increase or decrease. Step 9 is to determine if the product is sold out.
If the amount subtracted in Step 8 is determined to be sold out, the sold-out lamp of the sold-out product is turned on, the sale of the corresponding product is stopped, and the process proceeds to Step 1. If not sold out, move to Step 1.

Next, the raw material sold-out detection device of the vending machine of this embodiment will be described in detail. FIG. 4 is a block diagram showing control of the raw material sold-out detection device of the vending machine of this embodiment. In FIG. 4, reference numerals 21 and 22 are a plurality of product selection switches for selecting different sales products, 23a and 23b are increase switches for selecting the increase of the specific powder raw material in the products selected by the product selection switches 21 and 22, and 24a. , 24b are weight reduction switches for selecting the weight reduction of the specific powder raw material in the commodity selected by the commodity selection switches 21 and 22. 25a, 2
5b is a sold-out display lamp that indicates that the sold product is sold out, and 26 is a switch detection that detects that the product selection switches 21, 22 and the increase switches 23a, 23b and the decrease switches 24a, 24b are selected. It is a means. 27 is a first for storing the amount of powder raw material in the storage box
Storage means 28, second storage means 28 for storing a predetermined carry-out amount of the powder raw material carried out at the time of one-time sale, 29 is an amount increased from the predetermined carry-out amount of the powder raw material when the increase switches 23a and 23b are selected. A third storage means for storing
Is a fourth storage means for storing an amount to be reduced from a predetermined discharge amount of the powder raw material when the weight reduction switches 24a and 24b are selected. Reference numeral 31 is a raw material setting means, which writes the amount in the first to fourth storage means 27, 28, 29, 30. Reference numeral 32 denotes a carry-out amount calculation means, which is second when the switch detection means 26 detects that only the product selection switches 21 and 22 are selected.
The amount stored in the storage means 28 is used as the carry-out amount of the powder raw material, and the product selection switches 21 and 22 and the increase switch 23 are used.
When the switch detection means 26 detects that a or 23b is selected, the quantity stored in the third storage means 29 is added to the quantity stored in the second storage means 28 to calculate the carry-out quantity of the powder raw material. When the switch detection means 26 detects that the product selection switches 21 and 22 and the weight reduction switches 24a and 24b are selected, the quantity stored in the fourth storage means 30 is subtracted from the quantity stored in the second storage means 28. Then, the carry-out amount of the powder raw material is calculated. 33 is a first amount of powder raw material in the storage box, which is obtained by subtracting the amount calculated by the carry-out amount calculation unit 32 from the amount stored in the first storage unit 27.
The remaining amount calculation means is stored in the storage means 27. 34
Is a sold-out determination means for determining whether or not the remaining amount calculated by the remaining amount calculation means 33 is equal to or less than a preset sold-out amount, and 35 is a sold-out determination means 34 for setting the remaining amount in advance. When it is determined that the amount of the powdered raw material is less than the sold-out amount, the sold-out display lamp 25 for the product that uses the powdered raw material is displayed to stop the sale of the product that uses the powdered raw material. 36 is a coin detection mechanism that detects that coins have been inserted, calculates the total amount of coins inserted, and outputs the signal, and 37 receives a signal from the coin detection mechanism 36 to indicate whether the product can be sold or not. It is a means for judging whether the product can be sold or not. 38a and 38b are sellable lamps, and those corresponding to the products for which it is determined that the product can be sold by the product sellable / unavailable determination unit 37 are lit. The switch detection means 26 and the first to fourth storage means 27, 28,
29, 30, carry-out amount calculation means 32, remaining amount calculation means 33, sold-out determination means 34, sale stop means 35, and sale of merchandise
The impossibility determining means 37 is composed of a CPU.

Next, the control of the raw material sold-out detection device of the vending machine of this embodiment will be described with reference to the flowchart of FIG. First, the commodities sale availability determination means 37 is the coin detection mechanism 3
The signal from 6 determines whether the product can be sold (Step 1
1 is branched to the Yes side), and when the switch detection means 26 detects that the product selection switches 21 and 22 have been selected (Step 1
2 is branched to the Yes side), when the carry-out amount calculation means 32 detects that the switch detection means 26 has selected only the product selection switches 21 and 22 (after branching Step 13 to the No side, Step 1
4 is branched to the No side), the predetermined carry-out amount stored in the second storage means 28 is taken as the carry-out amount of the powder raw material (Step 15), and switch detection is made when the product selection switches 21 and 22 and the increase switches 23a and 23b are selected. When the means 26 detects (St
ep13 is branched to the Yes side), the increase amount stored in the third storage unit 29 is added to the predetermined discharge amount stored in the second storage unit 28, and the discharge amount of the powder raw material is calculated (Step 16). Selection switches 21 and 22 and weight loss switches 24a and 24
When b is selected and the switch detecting means 26 detects it (after branching Step 13 to the No side and then branching to the Step 14 Yes side),
The carry-out amount of the powder raw material is calculated by subtracting the reduction amount stored in the fourth storage unit 30 from the predetermined carry-out amount stored in the second storage unit 28 (Step 17). Next, the remaining amount calculation means 33 subtracts the carry-out amount calculated by the carry-out amount calculation means 32 from the amount of powder reduction in the storage box stored in the first storage means 27, and newly obtains the amount obtained. The amount of the powder raw material is stored in the first storage means 27 (Step 18), and then it is sold out whether the remaining amount calculated by the remaining amount calculation means 33 is equal to or less than a preset sold-out amount. When the determination unit 34 makes a determination, and the sold-out determination unit 34 determines that the remaining amount is equal to or less than a preset sold-out amount (Yes in Step 19).
(Branching to the side), the sale stopping means 35 detects that the powder raw material is sold out, and displays the sold-out display lamps 25a and 25b of the product that uses the powder raw material to sell the product that uses the powder raw material. To cancel.

As described above, in the raw material sold-out detection device for the vending machine according to the present embodiment, when the product selection switches 21 and 22 are selected, the carry-out amount calculating means 32 causes the increase switches 23a and 23b and the decrease switches 24a and 24b to be switched. Of the powdered raw material is calculated in consideration of the selected state, and the remaining amount calculation means 33 calculates the remaining amount of the powdered raw material in the storage box based on the discharged amount, and the sold-out determination means 34 calculates the remaining amount. Since it is detected that the powder raw material is sold out when it is determined that is less than or equal to the preset sold-out amount, it is possible to accurately detect the powder raw material sold-out.

EFFECTS OF THE INVENTION As is apparent from the above description, in the raw material sold-out detection device of the vending machine of the present invention, when the product selection switch is selected, the carry-out amount calculation means selects the increase switch and the decrease switch of the respective switches. In consideration of the above, the amount of powder raw material carried out is calculated, and the remaining amount calculation means calculates the remaining amount of powder raw material in the storage box based on the carried out amount, and the sold-out determination means presets the remaining amount. Since it is detected that the powder raw material is sold out when it is determined that the amount of the powder raw material is below the sold-out amount, it is possible to accurately detect the powder raw material sold-out.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing an embodiment of the present invention, FIG. 2 is a schematic configuration diagram showing a raw material supply system of an automatic vending machine to which the present invention is applied, and FIG. 3 is an embodiment to which the present embodiment is applied. 4 is a flow chart showing the control contents of the vending machine, FIG. 4 is a block diagram showing the control of the raw material sold-out detection device of the vending machine of this embodiment, and FIG. 5 is the raw material sales of the vending machine of this embodiment. It is a flow chart which shows control of a sensing device. 21, 22 ...... Product selection switch, 23a, 23b ...
Increase switch, 24a, 24b ... Decrease switch, 25
a, 25b ... sold-out indicator lamp, 26 ... switch detection means, 27 ... first storage means, 28 ... second storage means, 29 ... third storage means, 30 ... fourth Storage means, 31 ... Raw material setting means, 32 ... Delivery amount calculation means,
33 ... Remaining amount calculation means, 34 ... Sold-out determination means, 35 ...
… Means to stop selling.

Claims (1)

[Claims] 1. A plurality of product selection switches for selecting different products to be sold, an increase switch and a decrease switch for selecting increase or decrease of a specific powder raw material in the products selected by the product selection switch, and the sold products are sold out. A sold-out display lamp that indicates that, a switch detection unit that detects that each of the product selection switch, the increase switch, and the decrease switch has been selected; and a first storing the amount of powder raw material in the storage box. Storage means, second storage means for storing a predetermined carry-out amount of the powder raw material to be carried out at the time of one-time sale, and second storage means for storing an amount to be increased from the predetermined carry-out amount of the powder raw material when the increase switch is selected. 3, storage means for storing the amount of powder material to be reduced from a predetermined discharge amount when the weight reduction switch is selected, and the product selection switch. When the switch detection unit detects that only the selected item is selected, the amount stored in the second storage unit is set as the carry-out amount of the powder raw material, and the switch detection unit detects that the product selection switch and the increase switch are selected. At this time, the amount stored in the third storage unit is added to the amount stored in the second storage unit to calculate the carry-out amount of the powder raw material, and the product selection switch and the weight reduction switch are selected. A carry-out amount calculating means for calculating a carry-out amount of the powder raw material by subtracting the amount stored in the fourth storage means from the amount stored in the second storage means when detected by the switch detection means; The amount remaining obtained by subtracting the amount calculated by the carry-out amount calculation unit from the amount stored in the first storage unit as a new amount of the powder raw material in the storage box in the first storage unit. Calculator And a sold-out determination unit that determines whether or not the remaining amount calculated by the remaining amount calculation unit is equal to or less than a preset sold-out amount, and the remaining amount is preset by the sold-out determination unit. Of a vending machine having a sale stopping means for displaying the sold-out indicator lamp of a product using the powdered raw material when it is determined that the amount of the powdered raw material is less than or equal to the sold-out amount and stopping the sale of the product using the powdered raw material Raw material sold-out detection device.