KR880001871B1 - A vending machine - Google Patents

Abstract

At least two microcomputers are provided for the controlling operation of an automatic vending machine, which are connected by signal wires of a number selected from one to four w.r.t. each other. One of the microcomputers is a main microcomputer, while the other is a submicrocomputer. The submicrocomputer performs the controlling operation on the restricted block functions of the automatic vending machine, while the main microcomputer transmits control codes to the submicrocomputer through the signal wire to control the operation of it, and controls the automatic vending operation while serially transmitting or receiving the necessary data.

Description

Control Method and Device of Vending Machine

1 is a perspective view showing the front of a vending machine.

2 is a view showing a state in which the front door of the vending machine is opened.

3 is a view showing a state in which the door in the body of the vending machine is opened.

4 is a side cross-sectional view of the change dispensing device.

5 is an assembly chassis showing the merchandise sales mechanism.

6 is an operation explanatory diagram of a merchandise sales mechanism.

7 is an operation explanatory diagram of a merchandise sales organization.

8 is a system diagram illustrating a vending machine according to the present invention.

9 is a control circuit diagram of a vending machine according to the present invention.

10 is a diagram showing the configuration of transmission data.

FIG. 11 is a block diagram for explaining data transfer between a main microcomputer and each submicro computer. FIG.

12 is a timing difference art for explaining the timing of data transfer.

13 is a flowchart illustrating the operation of the main microcomputer.

Fig. 14 is a flowchart illustrating a subroutine of currency dispensing by the operation of a main microcomputer.

15 is a flowchart illustrating a subroutine of merchandise sales by the operation of a main microcomputer.

FIG. 16 is a functional block diagram for explaining a test operation of a submicrocomputer provided with a coin mechanism control unit. FIG.

Fig. 17 is a functional block diagram for explaining a test operation of a submicrocomputer installed in the customer control unit.

18 is a functional block diagram for explaining another test operation of the submicrocomputer installed in the customer control unit.

19 is a functional block diagram for explaining a test operation of a submicrocomputer installed in the sales control unit.

The present invention provides at least two microcomputers for control of a vending machine and connects each other with one line of signal lines, one of which is a main microcomputer and the other of which is a submicrocomputer, wherein the submicrocomputer relates to a limited function block of the vending machine. Control is performed and the main microcomputer transmits a control code to the sub microcomputer via a signal line to control the vending machine operation while integrating the operation and transmitting and receiving necessary data continuously.

An object of the present invention is to control a vending machine control method and apparatus, in particular by a microcomputer.

In recent years, the application of microcomputers to vending machines has been actively carried out and contributes greatly to the improvement of their functions, but there are also various problems.

That is, in the vending machine, the control circuit includes at least the calculation of the balance after the sales of the input amount, the change of exhaustion, the detection of the sold out of the product, the sale of the sold out label, the selection of the available product, the display of the available product, the operation of the selection switch, Although operations such as change of money must be performed, conventional control circuits by microcomputer control are often one-to-one with these switch device driving devices and display devices as terminal devices.

In this way, if each terminal device of one microcomputer of the control circuit is directly and centrally managed, the following disadvantages occur due to the centralization of the function into the control circuit.

As the number of parts of the control circuit board increases, the workability in the assembling process is poor, the defect rate is high, and the cause and analysis of the defect are difficult.

In addition, as the number of signal lines from the control circuit increases, the problem of wiring repair and wrong wiring is increasing. The control circuit boards need to be designed separately for various vending machines, and the hardware and software are multifunctional. It has become complicated.

Especially with regard to software, there are problems of work sharing, heavy burden on software engineers, much time for development and debag, and large control circuits and difficult repairs, resulting in expensive service costs.

On the other hand, the specification of U.S. Patent No. 4267915 employs a data busbar and a Maltiplex method in a circuit hole for introducing price data of a merchandise into a control circuit. By application, the above-mentioned increase in the number of wirings can be attained to some extent.

However, the data busbars and multiplexes in the specification of US Pat. No. 4,459,15 do not reach the effective number of wirings because data is transmitted in parallel.

In addition, if the Maltiplex method is widely used in the signal system, it is less likely to transmit and receive signals one-to-one to the control circuit and each terminal circuit, and to analyze which terminal equipment causes or causes the control circuit when an error occurs. This poverty has led to an increase in distress about serviceability.

In addition, regarding the effective reduction of the number of wirings, it is disclosed in Japanese Unexamined Patent Publication No. 58-16230 to continuously transmit data between the control circuit and each terminal.

However, although Japanese Patent Publication No. 58-16230 can effectively reduce the number of wirings, the concentration of functions in the control circuit has not been solved, and problems in terms of assembly workability, design efficiency, and serviceability have been found. Remains.

SUMMARY OF THE INVENTION An object of the present invention is to provide a control method and apparatus for a vending machine with a significant reduction in distribution water.

It is a further object of the present invention to provide a control method and apparatus for a vending machine that is easy to troubleshoot when an abnormality occurs.

A further object of the present invention is to provide a control method and apparatus for a vending machine in which control is distributed among functional blocks.

It is a further object of the present invention to provide a control method and apparatus for a vending machine that can perform a test operation alone for each functional block.

It is a further object of the present invention to provide a control method and apparatus for a vending machine in which assembly workability is improved.

It is a further object of the present invention to provide a control method and apparatus for a vending machine in which attachment of optional parts having various functions is easy.

EXAMPLE

The components constituting the vending machine shown in FIGS. 1 to 3 are classified into functional blocks as follows.

(1) Coin Mechanism (100)

a. Test part (101)

The coin coming from the coin inlet 102 of the vending machine is inspected in this part and the counterfeit is engraved into the half hole 103. For the purification, each coin of 10 won, 50 won, 100 won, 500 won At the same time output to the cure change change pipe 104, 105, 106, 107 or the safe 108.

b. Change Return

As shown in FIG. 4, with the change pipes 104, 105, 106, and 107, the change discharge motors 17, 18, 19, and 20 are used. The coin presser 110 is reciprocated by driving any of the change change motors 17, 18, 19, and 20 corresponding to the species, and the coin is removed from the change pipe containing the non-penetrating species. Discharge to return port 103.

The coin extrusion plate 110 and the reduction gear 109 are provided for each change discharge motor 17, 18, 19, 20.

In addition, the presence or absence of change in the pipes 104, 105, 106 and 107 is detected by the switch 99.

(2) Hospitality department (111)

The selling price commodity indicator (8) for each commodity displayed according to the conditions such as the signboard 112 for displaying the selling commodity, the input amount indicator 7 for displaying the amount of the input currency, etc. ), A sold-out product indicator 9 for each product that displays an unsold product for sale and other reasons, and a product selector switch 10A to 10H that indicates a desired product to be purchased.

(3) Vending Device (113)

A rack having a product dispensing motor 21 and a product dispensing drum 115 decelerated by a product storing rack 114 and a reduction gear 117 corresponding to the product type sold and storing the selected product type at the time of sale ( 114 drives the goods dispensing motor 21 corresponding to 114 to drive the goods dispensing drum as shown in Figs. 6 and 7, and the goods are intermediated with the chute 130 to the sales outlet 116. It is to send.

In addition, each of the storage racks 114 come by shaking of the swinging plate 131 and the swinging plate 131, respectively, corresponding to the presence or absence of goods. The product detection switch 22 for turning off is provided.

(4) control unit (27)

There are two types of centralized management of each functional block, and there are two types of relay control method and microcomputer control method, but the microcomputer control is mainly used for the complicated functions.

Data inputs such as price setting are often included in this speed.

(5) power supply (28)

Although the DC stabilization voltage is generated to the control unit and other functional block units, it is unnecessary in the case of a vending machine with a relay control method.

(6) Cooling / warming section (118)

It is a device that cools or warms the merchandise, and a compressor and a heater are used, and a thermostat is attached to keep the merchandise at an appropriate temperature.

Conventionally, this part is often controlled by itself, but recently, there is a model that is combined with the control unit for the purpose of power saving.

(7) Optional Parts

Various devices can be selectively mounted according to the customer's request.

Banknote identifiers, change aids, voice synthesizers, power saving timers, and sales counting devices are the main ones.

8 shows the control system of the vending machine according to the present invention, and the main microcomputer 7 is arranged in the control unit 27, and the coin mechanism 100, the serving unit 111, and the selling device 113 are respectively inexpensive. Control sub-microcomputers are arranged to form the control unit 1, 2, 3 for each functional block.

Then, the main microcomputer 7 and each submicrocomputer 4, 5, 6 are connected by a single signal line of pain, and the control command and data are transmitted and received to each other using this signal line as an intermediary.

In such a control system, the final routing to the terminal device is the same as before, but since the wiring from the control unit 27 to the control unit for each functional block is enough for one line (four wires including the power line), the number of wirings is greatly reduced. do.

The components concentrated in the control unit 27 can be distributed to the control unit for each functional block, and the software can be distributed in the same manner, so that the diagnostic function at the time of an error can be faithfully fulfilled and the failure at the time of an error occurs. Analysis becomes easy.

When only the reduction of the number of wirings is a problem, there are various methods for decentralizing functional blocks corresponding to various types of vending machines.

For example, in the vending machine in which the control unit 27 and the customer unit 111 are in close proximity, even if the control unit 27 and the customer unit 111 are connected by a single signal line, the distance is short, so that it is not very effective.

Therefore, in such a case, the control of the serving unit 111 is also achieved by the main microcomputer 7, and the submicrocomputers 4 and 6 are arranged in the coin mechanism 100 and the vending device 113, respectively. It is connected to the main microcomputer 7 by the signal line of.

Therefore, the number of wirings can be effectively reduced by arranging submicrocomputers to distribute the functions of the functional block portions arranged away from the control unit 27 and being connected to the main microcomputer 7 by one signal line.

Usually, since the distance between the control unit 27 and the selling device 113 is the longest in the vending machine, the main microcomputer 7 concentrates the control of the coin mechanics 100 and the serving unit 111 and the selling device 113. Only by distributing the sales control function by arranging the submicrocomputer 6, it is effective in reducing the wiring.

However, in the case where the control of some functional blocks is concentrated in the main microcomputer 7, it is disadvantageous in the failure analysis plane.

In addition, the data loudspeaker 120 logs data necessary for a selling operation such as a product selling price for each product type to the control unit 27, and the data input unit 122 is constituted by a key board, for example.

The data loudspeaker control unit 120 is controlled by a submicrocomputer 121 connected to the main microcomputer 7 by common electric and electrical signal lines.

Sub-microcomputers 123 and 124, which are connected to the main microcomputer 7 by a common electric signal line, also selector OP-OPn, such as a banknote identification device, a speech synthesis device, and a sales aggregation device, which are mounted as necessary. Controlled by

Such a selection device is sufficient to add some software to the main microcomputer 7 at the same time as it is connected to the signal line.

Therefore, a function can be added without changing the structure of other control part 1, 2, 3, and it is excellent in scalability.

Hereinafter, the control unit 27 will be described in the case where the submicrocomputers 4, 5 and 6 are arranged in the respective functional blocks of the coin mechanism 100, the customer service unit 111, and the sales device 113, respectively. Shall be.

9 shows a control circuit of a vending machine according to the present invention, where 7 is a main microcomputer in the control unit 27, 1 is a coin mechanism control unit, 2 is a hospitality control unit, and 3 is a sales circuit. It is a control part, and the main microcomputer 7 performs the central control of the vending machine according to a predetermined program.

The hospitality control unit 2 includes a submicrocomputer 5 and inputs formed as four digital displays 7A, 7B, 7C, and 7D to the output port P ₀ of the microcomputer 5. Price display (7) and LEDs corresponding to eight kinds of products from A to H, price display (8), sold out product display (9), and product selection switch (10A) installed in response to each product. The product selector switch circuit 10 including ˜ (10H) is connected.

In addition, each terminal 0-5 of the output port P0 of the microcomputer 5 is connected to each display device using the driver 11 as an intermediary, and the input port P ₀ is connected to the product selection switch circuit 10. Connected.

In addition, the coin mechanism control unit 1 includes a submicrocomputer 4, and a currency detecting unit for outputting input currency signals corresponding to currency types of 10, 50, 100, and 500 won in the input port P ₀ . (12) is connected to the input port (P ₁ ) to detect the presence or absence of change for each type of currency stored for change, and change the change detection unit (13) and the customer at the time of returning the input amount or balance In conjunction with the return switch (14) and the change dispensing motor operated by. The common input terminal 15 from each of the pulse switches to be turned off is connected, and the output port P _{2 is} connected with the driver 16 as an intermediary. (20) is connected and comprised.

In addition, the sales control unit 3 is provided with a microcomputer (6), the port (P ₀ ), A to the goods sold switches 22A to 22H and the driver 23 installed corresponding to each product up to H, to as the intermediate product discharge corresponding to respective items Motor (21A) ~ (21H) the connection and port Haute P ₁ is connected to a common output terminal 24 of the Motor each product dispensing and capsule Haute P ₂ has We come in conjunction with product dispatch motor. The common input terminal 25 of each pulse switch to be turned off is connected, and the common output terminal 26 to each product sold switch is connected to the port P ₃ .

The microcomputers 4, 5, and 6 are connected in parallel to each other by a signal line, so that the main microcomputer 7 is connected to each other. It is designed to transfer data asynchronously.

The data is the terminal designation data which designates the microcomputer 4, 5, and 6 of the microcomputer 7, and the main microcomputer 7 is the microcomputer 4, 5 and 6, respectively. There are five types of command code data checksum data, command data for confirming operation by the checksum data, and sales data.

Further, the sales data is transmitted between the main microcomputer 7 and each microcomputer 4, 5 and 6, and the input currency data, change data, selection product data, sales product data, amount display data, and selling price There are product data, sold product data, dispensing data, currency dispensing data, and sales completion data.

In this example, 8-bit data is transmitted, but as shown in the type of FIG. 10, one-bit StarArt bit (L) and two-bit stop bit (H) are added before and after the 8-bit data bit, and 11-bit The data is sent.

Therefore, the terminal designation data and the command code data composed of 4 bits are arranged as the upper 4 bits and the lower 4 bits of the data bits and transmitted as control data.

11 is a functional block diagram for explaining the operation of the main microcomputer 7 and the microcomputers 4, 5, 6 during data transmission.

The main microcomputer 7 includes a main controller 29 for determining data transfer with the submicrocomputers 4, 5 and 6, a shift register 50 of 11-bit configuration for continuously converting transfer data, and a submicrocomputer. (4) (5) (6) Flip-flop circuit 30, bidirectional conversion gate 40 of transmission / receiver, set by star art bit of transmission data, and floc pulse generating circuit 31 ( 32) has each function of the delay circuit 33.

The submicrocomputers 4, 5, and 6 are flip-flop circuits 34A, 34B, 34C, and main microcomputers that detect and set a star art of data transmitted from the main microcomputer 7, respectively. 7 to continuously convert transmission data to the main microcomputer 7 stored in the slave control devices 35A, 35B, 35C and 35C, 35A, 35B, 35C for controlling data transfer with the slave controller. Shift registers 36A, 36B, 36C, coollock pulse generator circuits 37A, 37B, 37C, 38A, 38B, 38C of 11-bit configuration, 41A bidirectional conversion gate of transmission / receiver 41B, 41C, and delay circuits 39A, 39B, 39C.

Coollock pulse generators 31, 32, 37A, 37B, 37C, 38A, 38B, and 38C each generate 11 equal cycles of cooldown pulses CL ₁ , CL ₂ , CL ₃ , and CL ₄ . However, the cool lock pulse CL ₄ outputted from the cool lock pulse generating circuits 37A, 37B, and 37C is operated by the delay circuits 39A, 39B, and 39C, respectively, as shown in the timing difference art of FIG. The 180 ° phase is delayed from the kullock pulse CL ₁ output from the pulse generator circuits 38A, 38B and 38C.

With such a functional configuration, data transmission between the main microcomputer 7 and each submicrocomputer 4, 5, and 6 is first performed by the main microcomputer 7 as terminal designation data and command code data. Transmission of bytes of control data begins.

As shown in the type of FIG. 12, the transmission terminal of the main microcomputer 7 is normally in the mark state H, and each of the bidirectional conversion gates 41A of the submicrocomputers 4, 5, 6 ( 41B) 41C are poised to receive data.

After the main controller 29 sets the 11-bit transmission data in the shift register 50, the bidirectional conversion gate 40 is put in a transmission condition, and the cool lock pulse generator circuit 31 is operated to shift the cool pulse pulse CL ₁ to a shift register. When introduced into (30), first, the star art bit (L) is transmitted, and the flip-flop circuits 34A, 34B, 34C of each submicrocomputer 4, 5, 6 are set.

The flip-flop circuit (34A) (34B) after a set of (34C) kulreok pulse generating circuit (37A) (37B) (37C ) is the late operation by the delay circuits (39A) (39B) (39C ) from kulrok pulses CL ₁ Outputs the cool rock pulse CL ₂ with a delayed 180 ° phase.

The slave controllers 35A, 35B, and 35C are sampling the transmission data from the main microcomputer 7 in the same manner as when the cool rock pulse CL ₂ is raised, and as shown in FIG. Each bit of data is sampled with 1/2 bit timing.

The slave controllers 35A, 35B, 35C of each of the submicrocomputers 4, 5, and 6 finish sampling of the 11-bit transmission data, and then reset the reset signal to the flip-flop circuit 34A ( Outputs to 34B) 34C, and transmission of terminal specification data and command code data is completed.

The slave control devices 35A, 35B, 35C of each submicrocomputer 4, 5, 6 read the transmitted terminal command data and command code data, and the subcomputers 7 assigned to the main microcomputer 7 Although only the microcomputer performs the operation according to the command code data, it is assumed that the submicrocomputer 4 is designated below.

For example, if the command code instructs reception of sales data, the submicrocomputer 4 sets the flip-flop circuit to the star art bits of the transmission data continuously transmitted from the main microcomputer 7, Sampling the transmission data together.

After the transmission of the transmission data, the main microcomputer 7 sets and transmits the checksum data of 1 byte in the shift register 50, and the submicrocomputer 4 sets the flip-flop circuit 34A with the start bit of the transmission data of the checksum. ) Sets and samples the transmission data of the checksum.

The slave controller 35A then determines the appropriateness of the received data based on the checksum data and, if appropriate, transmits the confirmation data to the main microcomputer 7.

If the command code commands the transmission of the sales data, the slave controller 35A operates the cool lock pulse generation circuit 38A after setting the transmission data of the sales data to the shift register 36A.

Accordingly, the cool lock pulse is introduced into the shift register 36A by CL ₃ so that the transmission data is sequentially transmitted through the bidirectional conversion gate 40 in the receiving posture, but the flip-flop circuit 30 is set by L of the star art bit. .

Since the cool lock pulse generator circuit 32 operates later than the set of the flip-flop circuit 30 as the delay circuit 33, the cool lock pulse generator circuit 32 outputs the cool lock pulse CL ₄ whose phase is 180 degrees later than the cool lock pulse CL ₃ .

The main controller 29 samples the transmitted data in the same manner as when the cool rock pulse CL ₄ rises, and outputs the reset signal to the flip-flop circuit 30 when the 11-bit data is sampled. The transfer is complete.

Subsequently, the slave controller 35A sets and transmits the transfer data of the checksum to the shift register 36A, and the main computer 7 sets the flip-flop circuit 30 by the star art bit of the transfer data of the checksum and transmits the transfer data. Sample the.

The main controller 29 determines whether the received data is appropriate or not based on the checksum data, and transmits the confirmation data to the main side 27 when appropriate.

In the following description, the transmission of checksum data is omitted in the description. In the above configuration, in the standby state, the microcomputer 4 of the coin mechanism control unit 1 sequentially scans the signal states of the signal lines of the ports P ₀ and P ₁ , and detects the currency detector 12, the change detector 13, The occurrence of the output signal from the return switch 14 is detected repeatedly, and the input currency data and the change exhaustion data are stored in the internal storage device.

In this example, the input currency data is composed of 4 bytes (8 bytes 1 byte), and each input quantity of 10, 50, 100, or 500 won is represented by 8 bits, and the change-out data is 1 byte. In this configuration, each of the change data of 10 won, 50 won, 100 won, and 500 won is displayed in 4 bits, and the operation information of the return switch 14 is displayed in 1 bit.

The microcomputer 4 transmits the detection data to the main microcomputer 7 when the command code data instructing the transmission of the terminal designation data and the sales data from the main micro computer 7 to the branch is input. When the confirmation data is sent from the main microcomputer 7, the storage of this data is cleared.

In addition, when command code data for commanding change payment is transmitted from the main micro computer 7 together with the terminal designation data, the micro computer 4 subsequently executes the change payment operation based on the payout data transmitted from the main micro computer 7. Do it.

In this example, the main microcomputer 7 decides the type of money to be paid in change, so the disbursement data is composed of 4 bytes, and each disbursement number of 10, 50, 100 and 500 won is displayed in 8 bits. have.

Therefore, the microcomputer 4 outputs an H signal from the terminal 0-3 corresponding to the type of the currency of the port P _{2 based} on the transmitted payment data, and the motors 17, 18, 19, and 20 of which are the same. ), But the change is made, but if there are more than one type of currency, the higher currency is given priority.

As shown in FIG. 4, the microcomputer 4 comes in conjunction with the drive of the change dispensing motor by the rotation of the cam 91. As shown in FIG. The input signal from the micro switch 92 to be turned off is detected by the input terminal 5 of the port P ₁ .

In this example, the micro switch 92 generates H in the standby state and changes to L by starting the change dispensing motor, but outputs H again when the change dispensing motor rotates as much as necessary to dispense one minute of money. It is supposed to.

On the other hand, the main microcomputer 7 transmits command code data instructing the submicrocomputer 4 to transmit the money dispensing data after the dispensing data is transmitted.

This money dispensing data is data indicating that a single disbursement has been completed, but in this example, the submicro computer 4 outputs the output data of the micro switch 92 at this time when this command code data is transmitted. 7).

Therefore, if the received data indicates L of the microswitch output, the main microcomputer 7 confirms that the change is being dispensed, and transmits the electric command code data again.

When the microswitch output changes from L to H, the submicrocomputer 4 stops outputting the H signal from the port P ₂ assuming that one coin has been dispensed.

In this state, the main microcomputer 7 outputs the electric command code data. When the data indicating H of the microswitch output is transmitted from the submicrocomputer 4, the data is regarded as currency data. Detect that one currency has been issued. The microcomputer 4 also detects the input of the input money signal to the port P ₁ while performing such a change dispensation control.

In addition, the microcomputer 5 of the hospitality control unit 2 has 4 bytes of amount display data and A for displaying 7-bit segment data of each digit in relation to the input amount display of the four digits transmitted from the main microcomputer 7. 1 byte of sold goods data displayed by each bit for each item from H to H as well as the commodity data. The microcomputer 5 stores these data sequentially in port P ₀ in parallel with one byte, and simultaneously outputs H from ports P ₁ to an indicator corresponding to the output data. Turn on the pulse.

On the other hand, the microcomputer 5 sequentially outputs H to each terminal 0-7 of the port P ₀ before and after sequentially outputting H from each terminal 0-5 of the port P ₁ , and responds to the port in response thereto. It is determined whether H is input to P ₂ to detect whether the selector switches 10A- 10H have been operated by the customer.

For example, when displaying the fourth digit of the input amount, the microcomputer 5 outputs segment data from the port P ₀ by making the terminal 0 of the port P ₁ H, but before the terminal 0 of the port P ₀ The output signal H is applied to the selection switch 10A corresponding to the product A to provide an operation signal.

Therefore, if this condition is selected, the switch (10A) is pressed into port Haute P ₂ is H is input, the microcomputer 5 has the selection switch (10B) - Increasing because (10H) is not an operation signal is granted port Haute P ₂ is It does not become H.

And the microcomputer (5) is included on oats after the terminal 0 of the P ₁ made by H then Four oats by creating a terminal 1 of the P ₁ with H PO Haute Four Haute P ₀ while outputting a segment of data of the third digit number from P ₀ H is outputted to terminal 1, and an operation signal is applied to the selection switch 10B to detect the operation.

In this way the micro computer 5 is included on oats P ₁ selection switch (10A) and output the H from the terminal 0-7 in the port P ₁ to Haute saeteum outputting a H sequentially from each of the terminals 0-5 - of (10H) The command code data which scans the operation and stores the 1-byte selection product data indicating the operation status of each selection switch for each bit, and instructs transmission of the selection product data together with the terminal specification data from the main microcomputer 7, Upon input, the selected product data is transmitted to the main microcomputer 7. And a microcomputer (6) of the sales control unit (3) is typically included to the output H to the Upper P ₃ detects the products sold by the data PO Haute P ₀ state signal to the input terminal 0-7 of the.

Each commodity exhaust switch for each commodity normally returns H to port P ₀ when H is introduced from port P ₃ , but cannot convert H to commodity exhaust.

Therefore, when L indicates commodity exhaustion with 8-bit sold-out product data, and the command code data for instructing the return of sold-out product data together with the terminal designation data from the main microcomputer 7 is inputted, the sold-out product data is displayed. It transmits to the microcomputer 7.

Further, when the terminal designation data and the command code data for commanding the product delivery are transmitted from the main microcomputer 7, the microcomputer 6 subsequently executes the product delivery operation based on the sales product data transmitted from the main microcomputer 7. Is done.

That is, the microcomputer 6 outputs H to the port P ₁ and outputs H from the terminals 0 to 7 corresponding to the selected product of the port P ₀ to drive the product dispensing motor, as shown in FIG. It comes in conjunction with a product dispensing motor by the rotation of the cam 93. The input signal from the microswitch 94 to be turned off is detected at the port P ₂ .

Similar to the case of the change dispensing motor described above, the micro switch 94 also makes the output changed from H to L at the start of rotation again when the commodity dispensing motor performs the rotation necessary for discharging one commodity.

Therefore, the microcomputer 6 stops the product dispensing motor by setting the output of the port P ₁ to L even if the merchandise sale is completed by converting the microswitch output from L to H.

On the other hand, the main microcomputer 7 transmits the command code data which instructs the submicrocomputer 6 to transmit the sales completion data after the sales product data is transmitted.

This sales completion data is data indicating the completion of sales, but in this example, the submicrocomputer 6 outputs the output data of the microswitch 94 at this time when the command code data is transmitted. Is to be sent to.

Therefore, if the received data from the microcomputer 6 resulting from the transmission of the electric command code data indicates L of the microswitch output, the main microcomputer 7 confirms that the commodity delivery operation is in progress, and reconstructs the electric designated code data again. Send.

When the electric command code data is transmitted from the main microcomputer 7 when the microswitch output is converted from L to H, the microcomputer 6 sends data indicating the H of the microswitch output to the main microcomputer 7. Send.

The main microcomputer 7 uses this data as the sale completion code and detects the completion of the sale.

FIG. 13 shows the operation flowchart art of the main microcomputer 7 which performs the central control of the vending machine.

The main microcomputer 7 transmits the control data C ₁ formed as command code data instructing the microcomputer 4 to transmit the terminal designation data and the data upon completion of the predetermined initial setting after the power supply is turned on. The data transmitted from the microcomputer 4 is sampled and read.

The transmission data is composed of input purchase data, change change data and return data for each currency species, and the main microcomputer 7 sets the input purchase data and change exhaustion data for each currency type and at the same time based on the input purchase data. The input amount is calculated and set.

The return data detects whether the customer has operated the return switch 14, and if so, transfers to the subroutine P ₀ of currency dispensing.

However, when the return switch 14 is not operated, the control data O ₁ constituted as command code data indicating reception of the terminal specification data and the display data and transmission of the selected product data is sent to the microcomputer 5. Subsequently, the input value display data sales sequentially transmit the product data and the sold out product data, and then sample the selected product data transmitted from the microcomputer 5.

If the bit of any of the 1-byte selection product data is H, the product selection switch is activated, and the process proceeds to the subroutine VD of product sales.

However, if the product selection switch is not operated, the main microcomputer 7 transmits the control data A ₁ formed as command code data instructing the microcomputer ₆ to transmit the terminal designation data and the sold out product data. Sample sold-out goods data transmitted from (6).

The main microcomputer 7 then determines the marketable product based on the input amount (or after-sales balance) and the selling price of each product previously stored in the internal storage device, change data and sold-out product data.

Next, the main microcomputer 7 checks whether or not automatic return is made, and transfers to the subroutine P ₀ when automatic return is necessary.

There are two types of automatic refunds: withdrawal of change when there is no commodity available for sale after the sale, and return of excess when the input exceeds the maximum input.

If no refund is required, the main microcomputer 7 repeatedly executes such a main flow in a standby state other than when dispensing money or selling goods, and calculates the amount of input, determines the merchandise available, and the customer control unit. The display data transmission to the furnace and the reception of the selected product data are performed.

14 is a subroutine P ₀ of monetary disbursement. The main microcomputer 7 sets the disbursing data by determining the type of disbursing money of the input amount to be returned or the change amount or the excess amount of the maximum input amount, and the microcomputer 4 The control data C ₂ formed as the terminal designation data and the command code data for instructing the payment of money is transmitted to the payout data required after transmission.

More main microcomputer (7) is sent repeatedly to the control data C ₃ is formed as a command Code data for instructing transmission of the output data of the terminal specified data and the micro-switch 92 to the microcomputer 4, the microcomputer Wait (4) to transmit the coin disbursement data PSWD ₁ indicating the H of the microswitch output.

Upon receipt of the currency disbursement data PSWD _1, the main microcomputer 7 subtracts the type of currency disbursed from the dispensation data.

In addition, when there are a plurality of dispensing currency types, the main microcomputer 7 and the microcomputer 4 are programmed to withdraw the higher currency first, and the main microcomputer 7 has a higher number whenever the coin dispensing data PSWD ₁ is input. First of all, subtract 1 from the disbursement data.

Then, the main microcomputer 7 calculates and sets the balance based on the disbursed data after subtraction, and then controls data D which is formed as command code data for transmitting the terminal designation data and the balance display data to the microcomputer 5. _{After 2} is sent, balance display data is sent.

Then, the main microcomputer 7 determines whether the balance has reached zero, and if it is not zero, returns to the transmission log of the control data C ₃ and repeats such control. When the serous value reaches zero, the subroutine P ₀ is irradiated. To return to the main flow MO.

In addition, Fig. 15 shows the subroutine VD of merchandise sales, and the main microcomputer 7 compares the selection product data to determine whether the selection product is available for purchase, and returns to the main flow if it cannot be purchased.

However, if possible, the control data A ₂ formed as the terminal designation data and command code data for instructing the merchandise sales is sent to the microcomputer 6, followed by the sales merchandise data.

Subsequently, the main microcomputer 7 transmits the control data A ₃ formed as command code data for instructing the microcomputer 6 to transmit the terminal designation data and the output data of the microswitch 94, and the microcomputer ( 6) Wait for the completion of sales data PSWD ₂ indicating H of the microswitch output to be transmitted.

When the selected product is sold and the sales completion data PSWD ₂ is transmitted, the main microcomputer 7 sets the balance by subtracting the amount of the sold product from the input amount (or the balance after sale).

Thereafter the main microcomputer (7) is to transmit the balance of the display data hanhue transmitting the control data D ₃ to be formed as a command Code data to the effect that transmission to the terminal specifying data and the balance display data after the sales to the microcomputer 5, the main flu Return to the low MO.

Therefore, the microcomputer 5 performs display control of the balance after the sale of the product.

In addition, the submicrocomputer 5 includes a hospitality test switch 43 at the input port P ₃ , and the submicrocomputer 4 is a currency processing test switch 44 at the input port P ₃ . Each of the test switches 42 is connected to the input port P ₄ , and each of the submicrocomputers 4, 5, 6 is operated by the corresponding test switches 44, 43, 42. The control of the microcomputer 7 is released and the original test sequence preprogrammed is executed.

First, when the test switch 44 of the coin mechanism control unit 1 is operated, the control data C of the submicro computer 4 corresponds to the processing from the main micro computer 4 to the main micro computer 7. _{When 1} , C ₂ and C ₃ are transmitted, in response to this, the code indicating the test scenario is transmitted to the main microcomputer 7.

After the transfer, the microcomputer 4 stops normal processing to execute the self-check program, and the main microcomputer 7 detects that the microcomputer 4 has entered the test sigence.

In the test sig- ence, the coin mechanism control unit 1 drives the change-out motors 17, 18, 19, and 20 corresponding to the currency type when the tester puts money into a coin, and stops by dispensing one coin. It is.

As a result, the person who tests the abnormality of the currency detection unit, the change dispensing motor 17, 18, 19, 20 pulse switch and the signal harness can be confirmed.

When the tester returns the test switch 44 to the completion of the test, the tester returns to the normal operation. In this state, the main microcomputer 7 responds to the processing to control data C ₁ , C ₂ , and C ₃ . When transmitted, the microcomputer 4 performs the normal response operation, so the main microcomputer 7 detects the end of the test sigence.

FIG. 16 is a functional block diagram illustrating an operation when the microcomputer 4 performs the above self-check processing on the coin mechanism control unit 1.

In the figure, the flip-flop circuits 45, 46, 47, and 48 are connected to each of the currency detectors 12, 10, 50, 100, and 500 won, respectively. Input signals from the common input terminal 15 and flip-flop circuits 45, 46, 47, and 48 from each pulse switch interlocked with the change discharge motors 17, 18, 19, and 20. The Q output of the AND gates 49, 50, 51 and 52 which are inputs is connected.

Then, when the test switch 44 is operated, for example, 10 won is input by the tester, the flip-flop circuit 45 is set and the change discharge motor 17 is driven, and the output of the corresponding pulse switch is at H. The output is obtained by the AND gate 49 which converts to L and outputs H as a single coin discharging, and the flip-flop circuit 45 resets and the change dispensing motor 17 stops.

Similarly, even when 50, 100, and 500 won are put in, the corresponding change dispensing motors 18, 19 and 20 are driven to pay the same kind of money.

Then, the test sequence related to the currency processing ends by returning the test switch.

Then, when the automatic return type test switch 40 of the reception controller 2 is operated, the microcomputer 5 receives any of the control data D ₁ , D ₂ , and D ₃ from the main micro computer 7 according to the processing. When is transmitted, in response to this, the code indicating the test sig- nal is transmitted to the main microcomputer 7.

Then, the microcomputer 5 stops normal processing to execute the self-checking program of the hospitality control unit 2, and the main microcomputer 7 detects that the microcomputer 5 has entered the test sigence.

In the test scenario, the hospitality control unit 2 simultaneously lights up a pair of sale price display LEDs and a sold product display LED corresponding to the product type with respect to the product price display device 8 and the sold out product display device 9 for each product type. After that, a predetermined test pattern is displayed on each digit of the input amount indicator 7.

This allows the tester to check the abnormality of each indicator and signal harness.

After the display is finished, if the main microcomputer 7 transmits any of the control data D ₁ , D ₂ , and D ₃ corresponding to the processing, the micro computer 5 performs the normal response operation. (7) detects the end of the test sequence.

FIG. 17 is a functional block diagram for explaining the operation in the case where the microcomputer 5 performs the self-check processing on the hospitality control unit 2. FIG.

In this figure, the flip-flop circuit 58 is set by the operation of the test switch 43, and the 8-bit shift register 63 has each output terminal for the product type in the selling price product indicator 8 and the sold out product indicator 9. Each pair of sales is connected to the product display LED and the sold out product display LED, and further connected to the segment signal input terminal of the input amount indicator 7.

The off delay circuit 60 is connected to the data input terminal DS of the shift register 63, and the cool lock pulse generation circuit 61 is connected to the cool lock input terminal CL.

Further, the cool lock pulse generating circuit 61 is also connected to the counter 62, and the test control device 64 corresponds to the counting content of the counter 62, so that the test pattern signal generator 65 and the digit signal generator ( The control signal is output to 66 and the reset signal is output to the counter 62 and flip-flop circuit 58.

In addition, the test pattern signal generator 65 is connected to seven signal lines connecting the respective output terminals of the shift register 63 and the indicators to display the segment signal of the pattern which is displayed by the input amount indicator 7 during the test. It is configured to output.

The digit signal generator 66 is connected to each display device via the driver 11.

In this configuration, when the flip-flop circuit 58 is set by the operation of the test switch 43, an output is obtained at the AND gate 59, and the off delay circuit 60 is connected to the data input terminal DS of the shift register 63. Output H

In addition, the off-delay circuit 60 outputs H to the data input stage DS for a predetermined time even after the automatic return of the test switch 43.

On the other hand, the cool-pulse pulse generation circuit 61 is operated by the set of the flip-flop circuits 58, and the shift register 63 shifts and stores the H of the data input terminal DS because the shift pulse is introduced into the cool-lock input terminal CL.

In addition, the counter 62 counts cooldown pulses, but the test control device 64 outputs a control signal such that the digit signal generator 66 outputs H at the output terminals 1 and 2 until the counter 62 counts nine. do.

Therefore, the first LED of the selling price merchandise indicator 8 and the sold out merchandise indicator 9 lights up at the same time.

Thereafter, whenever the shift register 63 shifts due to the occurrence of a cool lock pulse, a set of sales after the second time and a set of sold out goods display are sequentially lit.

In this way, when the ninth kullock pulse is generated, the shift register 63 is cleared because the memory is in an instant, and the selling price of the product indicator 8 and the sold out product indicator 9 are finished.

When the counter 62 counts 9, the test control device 64 outputs a control signal to the digit signal generator 66 to output H from the output terminals 3, 4, 5, and 6, and the test pattern signal. The generator 65 outputs a control signal to generate a segment signal of the test pattern.

The simplest thing in the testpattern is to turn on all segments to display 8.

At this time, the test pattern signal generator 65 outputs all the output terminals 1 to 7 and 8 is displayed in each digit.

In addition, the test pattern signal generator 65 may output segment signals corresponding to the respective numbers by time division so as to sequentially display 0 to 9.

When the counter 62 counts a predetermined value, the test control device 64 outputs the reset signal to the flip-flop circuit and the counter 62, and the test phase is completed.

In addition, the selling of the corresponding product in the test operation automatically turns on the product display LED and the sold out product display LED according to the product type in order. In response to the operation (10H), the corresponding selling price product display LED and the sold out product display LED may be lit.

In this way, the tester can check the abnormality of the selling price merchandise display device 8 and the sold out merchandise display device 9 and the surrounding signal harness including the merchandise selection switch circuit 10.

18 shows the product selection switch 10A, which the submicrocomputer 5 has operated in a test scenario. A functional block diagram illustrating an operation of turning on the selling price product display LED and the sold out product display LED corresponding to 10H. When the test switch output is changed from L to H by the operation of the test switch 43, the one short circuit 67 introduces a pulse into the data terminal DS of the shift register 71 by interposing the OR gate 70.

On the other hand, the cool lock pulse generation circuit 69 outputs a clock pulse by turning on the test switch 43, and at this time, the output lock of the inverter 73 is H, so the cool lock pulse is shifted through the AND gate 72. Is introduced into the coollock input terminal CL.

Therefore, the shift register 71 stores H of the data terminal DS, and thereafter shifts each time the coollock pulse is input to hold the memory.

In addition, the one-shot circuit 67 has already stopped the output at the time when the second cool lock pulse occurs.

When the memory is in a row, the data is introduced into the data input terminal DS again by using the OR gate 70 as an intermediate, so that the data is circulated and held in the shift register 71.

Therefore, each time the shift register 71 shifts, each output terminal 1 to 8 sequentially outputs H.

In this way, for example, when the tester operates the product selection switch 10A while the shift register 8 is generating H from the output terminal 1, an output is obtained at the AND gate 75 to obtain a delay circuit 74. Outputs H for a certain period.

Therefore, when the output side of the inverter 73 changes to L, the introduction of the cool lock pulse to the cool lock input terminal CL is prohibited by the AND gate 72.

Therefore, the H output from the output terminal 1 of the shift register 71 is maintained, and at this time, the selling price display LED (A) and the sold out display LED (A) light up because the output side of the inverter 73 is L.

When the output of the delay circuit 15 changes to L, the output side of the inverter 73 changes to H again, so that none of the selling price display LEDs 8A to 8H and the sold out display 9A to 9H light up. The shift register 71 is shifted by introducing a cool lock pulse into the cool lock input terminal CL through the AND gate 72.

In this way, when the product selection switches 10A to 10H corresponding to the output terminals are operated in accordance with the data shift of the shift register 71, corresponding sales price display LEDs 8A to ~ are delayed by the delay circuit 74. (8H) and the sold-out LEDs 9A to 9H light up.

When the test switch 43 is turned off by the end of the test, a reset signal is generated in the reset circuit 68 due to the conversion of the test switch output from H to L, and the shift register 71 is reset, and the cool lock pulse generation circuit is performed. (69) also becomes inoperative, and furthermore, since the output from the test switch 43 to the AND gate 75 changes to L, the test control operation stops.

In addition, since the microcomputer 5 introduces L into the port P ₃ , the microcomputer 5 detects the end of the test operation and performs normal control on the service portion.

In this way, when the automatic return type test switch of the sales control unit 3 is operated, the submicrocomputer 6 receives the control data A ₁ , A ₂ , and A ₃ from the main micro computer 7 according to the processing thereof. When transmitted, the code indicating the test sig- nance is transmitted to the main microcomputer 7 in response thereto.

Thereafter, the microcomputer 6 stops normal processing to execute the self-check program of the sales control section 3, and the main microcomputer 7 detects that the microcomputer 6 has entered the test sigence.

As a test scenario, the sales control unit 3 sequentially drives the product dispensing motors 21A to 21H for each product type to send out the products one by one.

As a result, the tester can confirm the abnormalities of the product discharging motors 21A to 21H, the pulse switch, and the signal harness.

When the main microcomputer 7 transmits any of the control data A ₁ , A ₂ , and A ₃ corresponding to the processing after the dispensing of all products, the micro computer 6 performs the normal response operation. The microcomputer 7 detects the end of the test sequence.

19 is a functional block diagram for explaining the operation in the case where the microcomputer 6 performs the self-check processing on the sales control unit 3.

In this figure, when the flip-flop circuit 53 is set to the operation of the test switch 42, a drive signal is supplied to the product dispensing motors 21A to 21H through the common output terminal 24.

Each output terminal of the 8-bit shift shift register 61 corresponding to the product type is connected to each of the product dispensing motors 21A to 21H through the driver 3.

The off delay circuit 55 is connected to the data input terminal of the shift register 57, and is connected to the data input terminal of the shift register 57, and the coollock input terminal CL of the shift register 57 is an OR gate. Reference numeral 56 is connected to the common input terminal 25 of each of the pulse switches linked to the test switch 42 and the product discharge motors 21A to 21H. In this configuration, when the flip-flop circuit 53 is set by the instantaneous on operation of the test switch 42, a drive signal is supplied to each of the product dispensing motors 21A to 21H through the common output terminal 24. .

The AND gate 54 outputs the set output of the flip-flop circuit 53 and the operation output of the test switch 42 to generate an output. The off delay circuit 55 is connected to the data input terminal DS of the shift register 57. Output H

In addition, the off delay circuit 55 outputs H to the data input terminal DS for a predetermined time even after the automatic return of the test switch 42.

On the other hand, the operation output of the test switch 42 is introduced into the cool lock input terminal CL of the shift register 57 through the OR gate 56 as a sheet pulse.

Therefore, since the shift register 57 stores H of the data input terminal DS, the product dispensing motor 21A is driven.

When the output of the pulse switch interlocked with the product discharging motor 21A is converted from L to H at the start of driving the motor, and finally the product is sent out and returned to L, the shift register 57 returns from H to L of the pulse switch output. I shift it as a rare sum to.

Therefore, when the commodity dispensing motor 21B starts to drive and the pulse switch interlocked with the motor outputs H to L, the shift register 57 shifts and the commodity dispensing motor 21C Start the drive.

In this way, when the shift register 57 shifts the input signal of the common input terminal 25 from H to L every time, the product dispensing motors 21A to 21H are sequentially driven and the product discharging motor ( When the pulse switch linked to 21H) outputs L to H, the shift register 57 generates a digit number output. By this digit output, the flip-flop circuit 53 is reset and the test sequence ends.

In addition, in the present example, the main microcomputer and the submicrocomputer transfer data asynchronously and continuously in one signal line, but there are various continuous data transfer methods corresponding to the number of signal lines.

First, in the case where two signal lines are used, data is asynchronously transmitted to each other exclusively for transmission and reception.

Another example of the case where two signal lines are used is a method of transmitting data to each other synchronously by using one line as a transmission / reception of a cool rock pulse and the other line as a transmission / reception of data.

In addition, when three signal lines are used, one line is used as a transmit / receive function of a cool rock pulse and the other two lines are transmitted for transmission and reception by data, respectively.

In the case where the signal lines are four lines, data is transmitted to each other synchronously as data transmission, cool pulse pulse transmission, data reception and cool pulse pulse reception. In either case, the signal line is at least safe because data is continuously transmitted.

Claims (2)

And a signal line disposed between the main microcomputer and the main microcomputer submicrocomputer that collectively control the submicro computer and the submicro computer that performs control related to the limited function block of the vending machine. The command micro data is continuously transmitted to the sub micro computer through the signal line to control the operation of the sub micro computer. When the command code data for instructing the reception of the data is transmitted from the main micro computer, the sub micro computer then transmits the command micro data. Receives electrical data continuously transmitted through the signal line, and based on the data, the submicrocomputer controls the above-described functional block and transmits command code data instructing transmission of detection data in the functional block. If the sub-microcomputer then the control method of an automatic vending machine characterized in that it controls the entire operation of the detection data by the vending machine based on the successive transmission to the art and the detected data to the main microcomputer main microcomputer via a signal line. A product delivery driving means installed for each product type and a sold out detection means for detecting the presence or absence of a corresponding product installed for each product type, a product selection means installed for each product type and operated by a customer, and corresponding to a currency type Currency detection means for outputting the input currency signal, the change detection means for detecting the presence or absence of the change currency installed for each change type, and the selling price of each product type in advance, and the input is based on the input currency signal. Comparing the amount of money input with the selling price of each commodity, and determining whether a commodity can be purchased based on the presence or absence of the change by the change detection means and the presence or absence of the product by the sold out detection means. A step of determining whether a product type corresponding to the operated product selection means is an electric purchase product; In the case where the selected product type is available for purchase, the step of continuously transmitting the selling product data indicating the selected product type through the signal line and the sold out product data based on the detection of the sold out detection means continuously transmitted through the signal line. A step of subtracting the selling price of the merchandise from the input amount after the receiving step and the transmission of the selected product data, and a step of continuously sending the command code data which commands the operation prior to the transmission and reception of the data through the signal line. A step of connecting the main micro computer with a main micro computer and a signal line, and detecting the presence or absence of goods by means of a sold-out detection means, a step of receiving and decoding the command code data introduced through the signal line and the received command code data. Is the contents ordering the transmission of the sold out product data. Subsequently, the step of continuously transmitting the sold-out goods data through the signal line, and deciphering that the received command code data is the content for instructing the reception of the above-mentioned sale product data, and subsequently, the data introduced through the signal line is read. Based on the step of receiving as data and the received sales product data, the received command code data after the completion of control of the product delivery driving means is decoded to command the transmission of the electric sales completion data. A control device for a vending machine configured as a sales control submicrocomputer having a step of continuously transmitting through the same.

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